INSTALLATION, OPERATION, MAINTENANCE Supersedes: NOM9 (314) Form NOM1 (317) RCL SERIES LOW SILL CONSOLE SINGLE SPEED 0.75 TON - 1.

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1 WATE SOUE HEAT PUMP INSTALLATION, OPEATION, MAINTENANE Supersedes: NOM9 (314) Form NOM1 (317) L SEIES LOW SILL ONSOLE SINLE SPEED 0.75 TON TON -410A Issue Date: March 29, 2017

2 IMPOTANT! EAD BEFOE POEEDIN! ENEAL SAFETY UIDELINES This equipment is a relatively complicated apparatus. During installation, operation maintenance or service, individuals may be exposed to certain components or conditions including, but not limited to: refrigerants, materials under pressure, rotating components, and both high and low voltage. Each of these items has the potential, if misused or handled improperly, to cause bodily injury or death. It is the obligation and responsibility of operating/service personnel to identify and recognize these inherent hazards, protect themselves, and proceed safely in completing their tasks. Failure to comply with any of these requirements could result in serious damage to the equipment and the property in which it is situated, as well as severe personal injury or death to themselves and people at the site. This document is intended for use by owner-authorized operating/service personnel. It is expected that these individuals possess independent training that will enable them to perform their assigned tasks properly and safely. It is essential that, prior to performing any task on this equipment, this individual shall have read and understood this document and any referenced materials. This individual shall also be familiar with and comply with all applicable governmental standards and regulations pertaining to the task in question. SAFETY SYMBOLS The following symbols are used in this document to alert the reader to specific situations: Indicates a possible hazardous situation which will result in death or serious injury if proper care is not taken. Identifies a hazard which could lead to damage to the machine, damage to other equipment and/or environmental pollution if proper care is not taken or instructions and are not followed. Indicates a potentially hazardous situation which will result in possible injuries or damage to equipment if proper care is not taken. Highlights additional information useful to the technician in completing the work being performed properly. External wiring, unless specified as an optional connection in the manufacturer s product line, is not to be connected inside the control cabinet. Devices such as relays, switches, transducers and controls and any external wiring must not be installed inside the micro panel. All wiring must be in accordance with Johnson ontrols published specifications and must be performed only by a qualified electrician. Johnson ontrols will NOT be responsible for damage/problems resulting from improper connections to the controls or application of improper control signals. Failure to follow this warning will void the manufacturer s warranty and cause serious damage to property or personal injury.

3 L SEIES INSTALLATION MANUAL Table of ontents Model Nomenclature eneral Installation Information Dimensional Data Physical Data Installation Steps System leaning and Flushing Open Loop round Water Systems Electrical onnections Electrical Data Blower Performance Data Wiring Schematics ontrols Unit Startup Notes Unit Startup hecklist/unit Startup Steps Operating Parameters Operating Limits Pressure Drop ompressor and Thermistor esistance efrigerant ircuit uideline Heat of Extraction/ejection Data eference alculations and Legend Startup/Troubleshooting Form Preventive Maintenance eplacement Procedures Service Parts List evision uide

4 L SEIES INSTALLATION MANUAL Model Nomenclature L S 09 L 0 A 1 N N B SS 18 * Model Type L L Series abinet onfiguration hassis s Only W hassis s with abinet S hassis s with Slope Top Unit apacity 09, 12, 15, 18 Piping Option L Left ight Voltage /60/10/60/ /60/17/60/ /60/11 (09 & 12 Only) Unit ontrol 1 M A Aurora TM Base ontrol (AB) Z Aurora TM with SMAT Equipment DD Vintage * - Factory Use Only Non-Standard Options SS Standard Air oil/insulation Option 5 AlumiSeal TM /Extended ange 6 AlumiSeal TM /Standard ange 7 No oating/extended ange 8 No oating/standard ange Sound Kit A None B Blanket Future Option N None Future Option N None oax Option opper N upronickel Thermostat ontrol 1 Unit Mounted Thermostat 2 emote Wall-Mount Thermostat Note: hassis only available with left piping option SMAT Equipment option is only available with remote wall-mounted thermostat control only available with PS blower motor only available with 3-Speed EM motor. All L Series product is Safety listed under UL1995 thru ETL and performance listed with AHI in accordance with standard

5 L SEIES INSTALLATION MANUAL eneral Installation Information Safety onsiderations WANIN: Before performing service or maintenance operations on a system, turn off main power switches to the indoor unit. If applicable, turn off the accessory heater power switch. Electrical shock could cause personal injury. Installing and servicing heating and air conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install, repair or service heating and air conditioning equipment. Untrained personnel can perform the basic maintenance functions of cleaning coils and cleaning and replacing filters. All other operations should be performed by trained service personnel. When working on heating and air conditioning equipment, observe precautions in the literature, tags and labels attached to the unit and other safety precautions that may apply. Follow all safety codes. Wear safety glasses and work gloves. Use a quenching cloth for brazing operations and have a fire extinguisher available. Moving and Storage Move units in the normal up orientation. Do not stack units. When the equipment is received, all items should be carefully checked against the bill of lading to be sure all crates and cartons have been received. Examine units for shipping damage, removing the units from the packaging if necessary. Units in question should also be internally inspected. If any damage is noted, the carrier should make the proper notation on the delivery receipt, acknowledging the damage. Water Piping The proper water flow must be provided to each unit whenever the unit operates. To assure proper flow, use pressure/temperature ports to determine the flow rate. These ports should be located at the supply and return water connections on the unit. The proper flow rate cannot be accurately set without measuring the water pressure drop through the refrigerant-to-water heat exchanger. All source water connections on commercial units are fittings that accept a male pipe thread (MPT). Insert the connectors by hand, then tighten the fitting with a wrench to provide a leakproof joint. When connecting to an open loop (groundwater) system, thread any copper MPT fitting into the connector and tighten in the same manner as described above. efrigerant Systems To maintain sealed circuit integrity, do not install service gauges unless unit operation appears abnormal. ompare the change in temperature on the air side as well as the water side to the Unit Operating Parameters tables. If the unit s performance is not within the ranges listed, and the airflow and water flow are known to be correct, gauges should then be installed and superheat and subcooling numbers calculated. If superheat and subcooling are outside recommended ranges, an adjustment to the refrigerant charge may be necessary. 5

6 L SEIES INSTALLATION MANUAL Dimensional Data - Flat Top abinet LW09-18 ight Hand abinet Left Hand abinet TOP F D E A B FONT ight return cabinet shown in dimensional views SIDE Overall abinet rille Flat Top onfiguration A B D E F Width Depth Height rille Lid rille Length rille Width in cm in cm

7 L SEIES INSTALLATION MANUAL Dimensional Data - Slope Top abinet LS09-18 ight Hand abinet Left Hand abinet TOP F D E 80 A B H FONT ight return cabinet shown in dimensional views SIDE Overall abinet rille Slope Top onfiguration A B D E F H Width Depth Height rille Lid rille Length rille Width in cm in cm

8 L SEIES INSTALLATION MANUAL Dimensional Data - hassis L09-12 WATE OUT 1/2 in. FPT 25.4 AI FLOW WATE IN 1/2 in. FPT BLOWE AESS PANEL OMPESSO AESS PANEL ONDENSATE DAIN ONNETION L AI FLOW WATE OUT 1/2 in. FPT WATE IN 1/2 in. FPT

9 L SEIES INSTALLATION MANUAL Dimensional Data - ontrols Detail: Flat Top hassis Left eturn ight eturn Wall Mount For hassis w/flat Top abinets Handy Box Blower Option Switch ontrol Panel (emove For Access To ontrol Box) ontrol Panel (emove For Access To ontrol Box) Blower Option Switch Wall Mount For hassis w/flat Top abinets Optional Fused/ Non-fused Disconnect Handy Box Optional Fused/ Non-fused Disconnect Optional Ball Valves Optional Hose Kits Air Filter Air Filter Optional Ball Valves Optional Hose Kits Dimensional Data - ontrols Detail: Slope Top hassis ontrol Panel (emove For Access To ontrol Box) Blower Option Switch (On Side Panel) Blower Option Switch (On Side Panel) ontrol Panel (emove For Access To ontrol Box) Wall Mount Attached to Unit Wall Mount Attached to Unit Optional Fused/ Non-fused Disconnect Optional Fused/ Non-fused Disconnect Air Filter Air Filter Optional Hose Kits Optional Ball Valves Handy Box Handy Box Optional Ball Valves Optional Hose Kits 9

10 L SEIES INSTALLATION MANUAL Physical Data onsole Model ompressor (1 each) otary Factory harge -410A, oz [kg] 27 [0.77] 27 [0.77] 36 [1.02] 34 [1.0] Blower Motor & Blower 3-Spd Blower Motor Type/Speeds N/A 3 Speeds EM 3-Spd Blower Motor - hp [W] N/A 1/4 [186] 1/4 [186] EM 3-Spd 6.0 x x 6.5 Blower Wheel Size (Dia x W), in. [mm] N/A EM [152 x 165] [152 x 165] Blower Motor Type/Speeds PS 2 Speeds N/A Blower Motor - hp [W] PS 1/16 [44.7] 1/16 [44.7] N/A Blower Wheel Size (Dia x W), in. [mm] PS 5.75 x 5.50 [146 x 140] 5.75 x 5.50 [146 x 140] oax and Water Piping Water onnection Size - FPT - in [mm] 1/2 [12.7] 1/2 [12.7] 1/2 [12.7] 1/2 [12.7] oax & Piping Water Volume - gal [l] 0.15 [0.6] 0.18 [0.7] 0.15 [0.6] 0.18 [0.7] Air oil Air oil Dimensions (H x W), in. [mm] 8 x 22 [203 x 559] 8 x 22 [203 x 559] 8 x 30 [203 x 762] N/A 8 x 30 [203 x 762] Air oil Total Face Area, ft 2 [m 2 ] 1.2 [0.114] 1.2 [0.114] 1.7 [0.16] 1.7 [0.16] Air oil Tube Size, in [mm] 3/8 [9.5] 3/8 [9.5] 3/8 [9.5] 3/8 [9.5] Air oil Number of ows Filter Standard - Throwaway, in [mm] 23 x 9.6 [584 x 244] 23 x 9.6 [584 x 244] 32 x 9.6 [813 x 244] 32 x 9.6 [813 x 244] Weight - Packaged, lb [kg] 200 [91] 205 [93] 215 [98] 220 [100] 12/13/13 10

11 L SEIES INSTALLATION MANUAL Installation Steps Step 1: Unpack Equipment and Inspect for Damage Step 2: Determine Equipment Location hoose level flooring surface (orrectable with shims. Do not pitch towards drain.) Location of wall support and fasteners required to secure chassis backplate. Easy access for both installation and service. onsider availability and ease of wiring, water piping and condensate drain. No obstructions to block airflow in front of the unit. Step 3: Mark Unit Position Ensure that floor is level. If shims are required, make sure that the entire compressor compartment area is uniformly shimmed and that the backplate mounting height is increased by the thickness of the shims used. Position backplate in desired equipment location. To further reduce the operating sound level of the unit, 1/8-inch thick rubber matting may be placed under the chassis to eliminate vibration on hard flooring surfaces. (Make sure back plate is level). Mark and cut floor or wall penetrations for electrical wiring, water and condensate piping. Optional Electrical Disconnect and Motorized Outside Air Damper Mark and cut wall penetrations for field fabricated outside air duct sleeve. Align mounting holes with backplate and attach with screws supplied. Figure 1 Wall Mount for hassis w/flat Top abinets 19.0 entered w/ abinet Fused Electrical Disconnect (Optional) Wall Penetration for Water onnection Floor Penetration for Water onnection Water Out P/T Plugs (Optional) Water In Ball Valves (Optional) Optional Hoses ondensate Drain Location Low Sill hassis Low Sill Flat Top abinet 11

12 L SEIES INSTALLATION MANUAL Installation Steps cont. Step 4: Provide Water and ondensate Drain onnections A two-pipe reverse return piping configuration is recommended as it equalizes the piping circuit lengths and delivers even water flow to each unit. A direct return piping configuration may be used, but it may be difficult to achieve and maintain proper water flow to the units. An air vent must be installed in the water distribution system. The supply and return water piping should be run through the wall or floor penetration and terminate with a ball valve. The piping material used must comply with all local codes. efer to: System leaning and Flushing procedures. Pipe Locations Figure 2 Water onnections onsole abinet onsole hassis Fused Electrical Disconnect (Optional Wall Mounted) 24V Accessory Target Area for Wall Penetration 5 in. x 8 in. Area Approx. 1/2 in. from Edge of hassis 3 in. from Floor abinet Extends to this Point 5 in. x 8 in. Area Approx. 1/2 in. from Edge of hassis 1 in. from Front Edge of abinet Electrical Junction Box ondensate Drain Location Target Area for Floor Penetration 12

13 L SEIES INSTALLATION MANUAL Installation Steps cont. Step 5: Provide Line Voltage Wiring heck unit data plate located on control side of chassis for ampacity and fuse size. emove electrical knockouts from chassis backplate. un line voltage wiring through knockout and secure wiring to backplate or disconnect. Step 6: hassis Installation Level and secure backplate to wall. Position the chassis against back plate. Drive (2) screws through holes in lip of backplate into top flange of chassis. Step 7: Final Electrical onnection Install flexible electrical conduit between the backplate or electrical disconnect and the unit mounted junction box. Make final wiring connections in disconnect and junction box, taking care to replace all covers when done. Wiring must conform to NE and/or all local codes. efer to Electrical Data. NOTE: It is necessary to make final wiring connections prior to securing unit chassis to back plate on right-hand piping models with electrical disconnect. Step 8: Final Water onnection For ease of installation and sound attenuation, high pressure (recommended) flexible hoses with a swivel fitting should be provided. Apply Teflon tape or sealant compound to threaded hose fittings. ombination shut-off/balancing valves should be installed on both the supply and return water lines of the unit. Flow control valves should be installed on the water discharge line. It is recommended that P/T ports be installed on the supply and return water lines. Step 9: Set Unit ontrols Locate the continuous fan/cycle fan switch within the electrical compartment of the chassis and set to desired position. (emote wall thermostat units do not use this optional switch.) Optional ontrol Settings- emote Thermostat - un low voltage wiring from unit to the desired thermostat location. Mount and wire thermostat according to manufacturer s recommendations. Step 10: Secure the abinet over Position and lower cabinet over unit chassis. Apply pressure to the front of the cabinet to ensure that the back lip of the cabinet hooks over the tabs provided on the backplate. Secure cabinet to chassis with mounting screws provided. Step 11: Perform Final Unit heck Measure the pressure drop across the water coil and monitor water or air temperatures in both heating and cooling modes. The measured values should fall within the acceptable ranges shown in the Startup Performance table. 13

14 L SEIES INSTALLATION MANUAL Installation Steps cont. Field onverting onsole hassis is normally configured with controls on right end and piping on left end (see Figure 3 top view). In this position panel number 1 would be positioned against wall or back plate. Unit may also be turned 180 against wall or back plate. In this position controls will be on left end and piping on right end panel number 2 would be positioned against wall or back plate. hassis must be enclosed with an approved cabinet enclosure. 1. emove 4 screws from front kick panel on cabinet. 2. emove cabinet from chassis by lifting and sliding cabinet straight up. 3. emove grille assembly from cabinet by removing 4 screws from brackets located on the bottom of the grille and door assemblies. 4. eplace grille/door assemblies into cabinet repositioning pieces 1, 2, and 3 into the locations directly opposite the original positions. Secure by replacing mounting brackets. (Note: Be sure that louvers on the grille assembly are facing the proper direction when replacing the grille section.) 5. eplace grille/frame assembly into cabinet, and secure by replacing mounting brackets. 6. eplace cabinet by sliding it down over the top of the chassis. 7. emove tab on leg that extends into return air opening. When the grille side of the cabinet is flat against chassis there will be 4 holes that line up in the leg section. Only use 1 hole for alignment for opposite side of grille. (Note: The tab can be removed by twisting back and forth until it breaks off.) 8. emove plastic strip from tab and replace on rough edge that the tab was removed from. 9. eplace screws in font kick panel to secure cabinet to chassis. 10. Mount filter bracket in designated opening area. (Note: The filter bracket will only fit in one direction if cabinet is installed properly.) IHT ETUN 5 4 LEFT ETUN 14

15 L SEIES INSTALLATION MANUAL System leaning and Flushing leaning and Flushing Prior to start up of any heat pump, the water circulating system must be cleaned and flushed of all dirt and debris. If the system is equipped with water shutoff valves, the supply and return runouts must be connected together at each unit location (This will prevent the introduction of dirt into the unit, see Figure 7). The system should be filled at the water make-up connection with all air vents open. After filling, vents should be closed. Figure 7: Flushing with Water Shutoff Valve Equipped Systems eturn unout Supply unout The contractor should start the main circulator with the pressure reducing valve Mains makeup open. Vents should be checked in sequence to bleed off any trapped ubber Hose air and to verify circulation through all components of the system. unouts Initially onnected Together As water circulates through the system, the contractor should check and repair any leaks found in the piping system. Drain(s) at the lowest point(s) in the system should be opened for initial flush and blowdown, making sure water fill valves are set at the same rate. heck the pressure gauge at the pump suction and manually adjust the make-up water valve to hold the same positive pressure both before and after opening the drain valves. Flushing should continue for at least two hours, or longer if required, until drain water is clean and clear. The supplemental heater and/or circulator pump, if used, should be shut off. All drains and vents should be opened to completely drain the system. Short-circuited supply and return runouts should now be connected to the unit supply and return connections. efill the system with clean water. Test the system water for acidity and treat as required to leave the water slightly alkaline (ph 7.5 to 8.5). The specified percentage of antifreeze may also be added at this time. Use commercial grade antifreeze designed for HVA systems only. Environol brand antifreeze is recommended.. Once the system has been filled with clean water and antifreeze (if used), precautions should be taken to protect the system from dirty water conditions. Dirty water will result in system-wide degradation of performance, and solids may clog valves, strainers, flow regulators, etc. Additionally, the heat exchanger may become clogged which reduces compressor service life and can cause premature unit failure. In boiler/tower application, set the loop control panel set points to desired temperatures. Supply power to all motors and start the circulating pumps. After full flow has been established through all components including the heat rejector (regardless of season), air vented and loop temperatures stabilized, each of the units will be ready for check, test and start up and for air and water balancing. round Source Loop System heckout Once piping is completed between the unit pumping system and ground loop, final purging and charging of the loop is needed. A high pressure pump is needed to achieve adequate flow velocity in the loop to purge air and dirt particles from the loop itself. Antifreeze solution is used in most areas to prevent freezing. Flush the system adequately to remove as much air as possible; then pressurize the loop to a static pressure of psi (summer) or psi (winter). This is normally adequate for good system operation. Loop static pressure may decrease soon after initial installation, due to pipe expansion and loop temperature change. unning the unit for at least 30 minutes after the system has been completely purged of air will allow for the break-in period. It may be necessary to adjust static loop pressure (by adding water) after the unit has run for the first time. Loop static pressure will also fluctuate with the seasons. Pressures will be higher in the winter months than during the cooling season. This fluctuation is normal and should be considered when charging the system initially. Ensure the pump provides adequate flow through the unit by checking pressure drop across the heat exchanger. Usually gpm of flow per ton of cooling capacity is recommended in earth loop applications. 15

16 L SEIES INSTALLATION MANUAL Open Loop round Water Systems Always maintain water pressure in the heat exchanger by placing water control valves at the outlet of the unit to prevent mineral precipitation. Use a closed, bladder-type expansion tank to minimize mineral formation due to air exposure. Ensure proper water flow through the unit by checking pressure drop across the heat exchanger and comparing it to the figures in unit capacity data tables in the specification catalog gpm of flow per ton of cooling capacity is recommended in open loop applications. Discharge water from the unit is not contaminated in any manner and can be disposed of in various ways, depending on local codes, i.e. recharge well, storm sewer, drain field, adjacent stream or pond, etc. Most local codes forbid the use of sanitary sewer for disposal. onsult your local building and zoning departments to assure compliance in your area. Note: For open loop/groundwater systems or systems that do not contain an antifreeze solution, set SW1-Switch #2 to the WELL position (efer to the Dip Switch Field Selection table). Slow opening/closing solenoid valves (type VM) are recommended to eliminate water hammer. Water Quality In ground water situations where scaling could be heavy or where biological growth such as iron bacteria will be present, a closed loop system is recommended. The heat exchanger coils in ground water systems may, over a period of time, lose heat exchange capabilities due to a buildup of mineral deposits inside. These can be cleaned, but only by a qualified service mechanic, as special solutions and pumping equipment are required. Desuperheater coils can likewise become scaled and possibly plugged. In areas with extremely hard water, the owner should be informed that the heat exchanger may require occasional flushing. Units with cupronickel heat exchangers are recommended for open loop applications due to the increased resistance to build-up and corrosion, along with reduced wear caused by acid cleaning. Material opper 90/10 upronickel 316 Stainless Steel ph Acidity/Alkalinity Scaling alcium and (Total Hardness) (Total Hardness) (Total Hardness) Magnesium arbonate less than 350 ppm less than 350 ppm less than 350 ppm Hydrogen Sulfide Less than 0.5 ppm (rotten egg smell appears at 0.5 ppm) ppm Less than 1 ppm Sulfates Less than 125 ppm Less than 125 ppm Less than 200 ppm hlorine Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm hlorides Less than 20 ppm Less than 125 ppm Less than 300 ppm arbon Dioxide Less than 50 ppm ppm ppm orrosion Ammonia Less than 2 ppm Less than 2 ppm Less than 20 ppm Ammonia hloride Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm Ammonia Nitrate Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm Ammonia Hydroxide Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm Ammonia Sulfate Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm Total Dissolved Solids (TDS) Less than 1000 ppm ppm ppm LSI Index +0.5 to to to -0.5 Iron, FE 2 + (Ferrous) Iron Fouling Bacterial Iron Potential < 0.2 ppm < 0.2 ppm < 0.2 ppm (Biological rowth) Less than 1 ppm, above this level Less than 1 ppm, above this level Less than 1 ppm, above this level Iron Oxide deposition will occur deposition will occur deposition will occur Suspended Solids Erosion Threshold Velocity (Fresh Water) NOTES: rains = ppm divided by 17 mg/l is equivalent to ppm Less than 10 ppm and filtered for max. of 600 micron size Less than 10 ppm and filtered for max. of 600 micron size Less than 10 ppm and filtered for max. of 600 micron size < 6 ft/sec < 6 ft/sec < 6 ft/sec 2/22/12 16

17 L SEIES INSTALLATION MANUAL Electrical onnections eneral Be sure the available power is the same voltage and phase as that shown on the unit serial plate. Line and low voltage wiring must be done in accordance with local codes or the National Electric ode, whichever is applicable. 208 Volt Operation All 208/230 units are factory wired for 230 volt operation. For 208 volt operation, the red and blue transformer wires must be switched. Microprocessor emote Thermostat Wiring Figure 5 Field onnections TB Unit onnections 24 VA ed OMMON Black OMPESSO Y Yellow EVESIN VALVE O Orange FAN reen equires common connection or 24 VA for activation LOKOUT SINAL SHUTDOWN L S Brown Blue X2 X1 W2 17

18 L SEIES INSTALLATION MANUAL Electrical Data Model 09 ated Voltage Voltage Min/Max ompressor M LA LA Blower Motor FLA Total Unit FLA Min irc Amp Max Fuse/ HA 115/60/1 104/ /60/1 187/ /15 265/60/1 238/ /15 115/60/1 104/ /60/1 187/ /15 265/60/1 238/ / /60/1 187/ /60/1 238/ / /60/1 187/ /60/1 238/ HA circuit breaker in USA only 6/10/13 Blower Performance Data Model FM Low Speed High Speed Air fl ow values are with dry coil and standard fi lter. For wet coil performance, fi rst calculate the face velocity of the air coil (face velocity (fpm) = airfl ow (cfm) / face area (sq ft)) 18

19 L SEIES INSTALLATION MANUAL Wiring Schematics M with emote Thermostat /60/1 ompressor rn PS Blower Motor Wht Brn Blue S ed Blk round Lug Handi - Box Unit Power Supply /60/1 or /60/1 Tan (33) ap L H T2 T1 L2 L1 Black (29) ed (30) Blower Switch High Low Black (25) 4 2 B 5 White (28) Black (27) Brown (26) ed PB 1 Black Blue 230V 265V Black (31) ed (32) NOTE 1 Transformer NOTE 3 S 4 5 ed 208V Yellow 24V Black/White NOTE 3 24 V Supply for Start/ Stop Signal Brown NOTE S 3 Black 3 Y1 O L S X2 X1 W1 Terminal Board ed Black Yellow Orange reen Brown Pink White Not Used PB-2 1 Orange (21) Black (22) reen (00) FS HP LP Black/White (1) ed (2) Brown (3) Violet (4) Violet (5) Black (6) Black (7) Blue (8) Blue (9) Yellow (10) HP HP LO LP LP Y HP HP LO LP LP Y TEST PIN OMPESSO ONTOL MODULE 2 Yellow Yellow (10) V Orange reen 1 3 B Violet (4) Violet (5) Pink Legend Legend Factory low voltage wiring - ompressor ontactor Factory line voltage wiring DT - Damper Terminal Block Factory low voltage wiring FS - Freeze Sensing Device Factory line voltage wiring HP - High Pressure Switch Quick connect terminal LP - Low Pressure Switch PB - Power Block Wire nut B - Blower elay S emote Start/Stop elay V - eversing Valve oil ST - Entering Air Temperature Sensor L1 Wiring lug round elay ontacts - N.O., N.. HP LP T Switch - High Pressure Switch - Low Pressure elay coil apacitor Thermistor Temperature Switch Notes: 1. Switch ed and Blue wires for 208 volt operation. 2. Terminal of the 24V PB is used as L output for Brown wire 3 for Lockout. 3. When installed, 24VA connection for remote start/stop controller option. 97P /24/11 19

20 L SEIES INSTALLATION MANUAL Wiring Schematics cont. M with Unit Mounted Thermostat /60/1 ompressor rn PS Blower Motor Wht Brn Blue S ed Blk Handi - Box round Lug Unit Power Supply /60/1 or /60/1 Tan (33) ap L H White (28) T2 T1 Brown (26) L2 L1 White (28) Black (31) ed (32) Black (29) ed (30) High Low Black (25) Black (27) Brown (26) ed (19) PB 1 Black NOTE 1 Blue 230V 265V ed 208V 24V Yellow Black/White 2 Yellow (13) IN PUT Fan White (18) ed (17) ed (11) Ther Black mistor Black ST T ed (19) Yellow (10) Black (12) Black (22) NOTE 2 3 reen (00) HP LP NOTE 3 Black/White (1) ed (2) Brown (3) Violet (4) Violet (5) Black (6) Black (7) Blue (8) Blue (9) Yellow (10) HP HP LO LP LP Y HP HP LO LP LP Y TEST PIN OMPESSO ONTOL MODULE T1 T2 T3 24 V A T3 T1 ed Black (12) ed (11) ed Orange ed (17) ycled White (18) 1 White (20) 3 Black (22) T2 Yellow (13) Shut down Overide T4 T5 T6 T4 T6 T5 SHUT ed (15) Orange (14) Orange (21) Blue (T6) Not Used 24VA J1 DOWN ed (16) Yellow (13) Legend Factory low voltage wiring - ompressor ontactor Factory line voltage wiring DT - Damper Terminal Block Field low voltage wiring FS - Freeze Sensing Device Field line voltage wiring HP - High Pressure Switch Quick connect terminal LP - Low Pressure Switch PB - Power Block Wire nut B - Blower elay V - eversing Valve oil ST - Entering Air Temperature Sensor P L Field wire lug Earth round elay ontacts - N.O., N.. Polarized onnector HP LP T Switch - High Pressure Switch - Low Pressure elay coil apacitor Thermistor Temperature Switch Notes: 1. Switch ed and Blue wires for 208 volt operation. 2. Terminal of 24 V PB is used as L output for Brown wire 3 for Lockout. 3. Optional field installed freeze sensing device. 97P /14/11 20

21 L SEIES INSTALLATION MANUAL Wiring Schematics cont. AB - with PS Motor and Electronic Stat /60/1 24V Emergency Shutdown Unit Power Supply /60/1 or round /60/1 Lug Handi - Box Auto Fan White (18) ycled ontinuous Blue S ed Black Yellow Tan (33) T2 L2 ompressor Black Transformer 24V Black/White Note 1 ed 208V Blue 230V/265V P9 JW2 Mode Switch Fan Mode Switch ed (19) ed (19) ALM AL A OM F1-3A FM A NO A N LO O/B Y1 Y2 W Black (31) DH P1 F ed ES ed ES Yellow 470 esistor HP LP FD V 470 T V Black (15) Violet (14) Black (13) B White (12) Black (10) Black (09) Blue (08) Blue (07) Yellow Yellow Orange (02) Orange (01) F F P5 EVEV FP1 FP1 FP2 FP2 LPS LPS HPSHPS P4 HI LO K1-V elay K3-2 elay K2- elay K4-Fan elay L1 PWM ed (32) Status LED3 T1 SW1 Test Mode Aurora Base ontrol (AB) Fault LED1 P13 On Off FP1 15 F/30 F FP2 15 F/30 F V B/O Acc Dip 4 Acc Dip 5 Dual/Single L Output Type Future Use SW2 om2 om1 onfig LED5 LED5 LED2 Y S485 NET S485 EXP P8 P7 Y P6 O EH1 EH2 P3 Brown (23) ondensate 2 F S485 NET K5-Alarm elay K6-Acc elay reen (00) EH1 P2 ES LS Note 2 Orange (14) PS Fan Motor Brn/Wht rn Brn ap White (28) H L White (28) Black (29) Fan Speed Switch ed (30) High Low Black ed (25) 4 B 2 Black (27) reen Black (12) Yellow Electronic THEMOSTAT Ther Black IN ST Yellow (13) PUT mistor Black T ed 24 V Black (12) ed (11) A A Heat T1 T3 ed (11) T2 ed T1 T3 Orange Yellow (13) T2 ed (17) Orange (14) T4 T4 T5 Blue (T6) Not Used T6 T6 T5 B ool SHUT J1 DOWN Overide Shut down 21

22 1 2 3 L SEIES INSTALLATION MANUAL Wiring Schematics cont. AB - with PS Motor and Electronic Stat /60/1 Accessory elay Operation SW2-4 SW2-5 ycle with Blower On On ycle with ompressor Off Off Water Valve Slow Open On Off Outdoor Air Damper Off On Aurora Timing Events Event Normal Mode Test Mode andom Start Delay 5 to 80 seconds 1 second ompressor On Delay 5 seconds < 1 second ompressor Minimum On Time 2 minutes 5 seconds ompressor Short ycle Delay 4 minutes 15 seconds Blower Off Delay 30 seconds 2 seconds Fault ecognition Delay High Pressure Start-Up Bypass Low Pressure Less than 1 second 2 minutes Less than 1 second 30 seconds Fault ecognition Delay Low Pressure 30 seconds 30 seconds Start-Up Bypass Low Water/Air oil Limit Fault ecognition Delay Low Water/Air oil Limit Fault ecognition Delay ondensate Overflow 2 minutes 30 seconds 30 seconds 30 seconds 30 seconds 30 seconds Thermostat all ecognition Time 2 seconds 2 seconds Auxiliary Heat Staging Delay Emergency Heat Staging Delay 5 minutes 2 minutes 20 seconds 7.5 seconds Water Valve Slow Open Delay 90 seconds 90 seconds eheat Delay 30 seconds 30 seconds Notes: 1 Swap blue and red leads for 208V operation. 2 Use AL Output for 24V lockout. L1 Factory Low Voltage Wiring Factory Line Voltage Wiring Field Low Voltage Wiring Field Line Voltage Wiring Optional Block D Voltage PB Traces Field Zone Sensor Wiring Internal Junction Quick onnect Terminal Field Wiring Lug round elay ontacts N.O., N.. apacitor Fuse Temperature Switch ompressor ontactor O ondensate Overflow Sensor ES Emergency Shutdown HP High Pressure Switch LP Low Pressure Switch FD Freeze Detection Sensor F1 Fuse Legend T Y Thermistor elay oil Switch - ondensate Overflow Switch - High pressure Switch - Low pressure Polarized connector Light Emitting Diode - reen Light Emitting Diode - Yellow Light Emitting Diode - ed Wire nut SW1 Push button SW2 DIP package 8 position PB Power Block B Blower elay V eversing Valve oil Aurora LED Flash odes Slow Flash Fast Flash Flash ode 1 second on and 1 second off 100 milliseconds on and 100 milliseconds off 100 milliseconds on and 400 milliseconds off with a 2 second pause before repeating andom Start Delay Status LED (LED1, reen) onfiguration LED (LED2, Yellow) Fault LED (LED3, ed) Status LED (LED1, reen) Fast Flash Fast Flash Fast Flash onfiguration LED (LED2, Yellow) Fault LED (LED3, ed) Normal Mode ON No Software Overide Flash EM Setting Normal Mode OFF ontrol is Non-Functional OFF DIP Switch Overide Slow Flash Input Fault Lockout Flash ode 1 Test Mode Slow Flash EM onfigure Mode Fast Flash High Pressure Lockout Flash ode 2 Lockout Active Dehumidification Mode eserved eserved Load Shed ESD eserved Fast Flash Flash ode 2 Flash ode 3 Flash ode 4 Flash ode 5 Flash ode 6 Flash ode 7 eset onfigure Mode Off Low Pressure Lockout Low Air oil Limit Lockout - FP2 Low Water oil Limit Lockout - FP1 eserved ondensate Overflow Lockout Over/Under Voltage Shutdown eserved eserved Air/Water oil Limit Sensor Error Flash ode 3 Flash ode 4 Flash ode 5 Flash ode 6 Flash ode 7 Flash ode 8 Flash ode 9 Flash ode 10 Flash ode F Y1 JW2 - Alarm HP HP LP LP FP2 FP2 FP1 FP1 EV EV LO HI F F P2 ES P4 Factory P5 Factory LS PWM FM EM PWM P13 ALM AL SW1 Test V K1 K2 Hi K3 Fan K4 Alarm K5 Acc K6 Field onnections A c A no A nc P9 LO P1 LO LED1 P11 Off FP1 15 o F/30 o F FP2 15 o F/30 o F Fault V B/O A Dip 4 LED3 A Dip 5 Dual/Single L Pulse/ontinuous Status eheat/normal Factory Use AUOA BASE ONTOL Factory Fan onnection O/B Field onnections O/B SW2 On 1 LED2 2 Y 3 onfig Y1 Y2 W Y1 Y2 W DH DH om1 om2 3A-Fuse P3 Factory P6 P7 S 485 P8 EH1 S485 Exp S485 NET EH2 EH1 O N/A (+) (-) (+) (-) 22

23 L SEIES INSTALLATION MANUAL Wiring Schematics cont. AB - PS Motor with emote Stat /60/1 rn PS Fan Motor Brn/Wht Brn Blu S ed Tan T2 T1 ompressor Blk Handi - Box round Lug Unit Power Supply /60/1 or 265/60/1 Fan Speed Switch H L Black (29) ed (30) White (28) ap White (28) L2 L1 Black White Black Blue 230V/265V High Low Note 1 ed 208V Transformer Black ed (25) 4 B 2 Black (27) Yellow 24V Emergency Shutdown Black (27) V 470 esistor FD LP HP Black/White ES ES ed ed Yellow Black (10) Black (09) Blue (08) Blue (07) 470 T Yellow Yellow V Orange (02) Orange (01) Black (15) Violet (14) Black (13) B White (12) TB Emerg Shutdown Load Shed Lockout ircuit A 24VA 24VA ommon eversing Valve Fan ompressor A Electric Heat Dehumidification Lockout ircuit B ompressor B ES LS LO1 O Y1 W DH LO2 Y2 EH1 P2 ES LS ALM AL A OM A NO A N LO O/B Y1 Y2 W DH P1 2 F K5-Alarm elay K6-Acc elay P8 P9 om2 LED5 S485 NET JW2 F F 2 HI K4-Fan elay om1 LED5 S485 NET - + P7 K2- elay 2 LO K3-2 elay 2 S485 EXP P5 Aurora Base ontrol (AB) EV EV FP1 FP1 FP2 FP2 LPS LPS HPSHPS P4 K1-V elay SW1 Test Mode - + P6 O EH1 EH2 P3 Status LED3 Y1 Fault LED1 F1-3A PWM FM P13 Off On FP1 15 F/30 F 1 FP2 15 F/30 F 2 V B/O 3 Acc Dip 4 4 Acc Dip 5 5 Dual/Single 6 L Output Type 7 Future Use 8 SW2 onfig LED2 Y F lass 2 Black/ White Black/ White reen (00) Brown (23) ondensate Note 2 23

24 1 2 3 L SEIES INSTALLATION MANUAL Wiring Schematics cont. AB - PS Motor with emote Stat /60/1 Notes: 1 Swap blue and red leads for 208V operation. 2 - When field installed 24VA motorized valve is used, connect to and Y. Accessory elay Operation SW2-4 SW2-5 ycle with Blower On On ycle with ompressor Off Off Water Valve Slow Open On Off Outdoor Air Damper Off On Aurora Timing Events Event Normal Mode Test Mode andom Start Delay 5 to 80 seconds 1 second ompressor On Delay 5 seconds < 1 second ompressor Minimum On Time 2 minutes 5 seconds ompressor Short ycle Delay 4 minutes 15 seconds Blower Off Delay 30 seconds 2 seconds Fault ecognition Delay High Pressure Start-Up Bypass Low Pressure Less than 1 second 2 minutes Less than 1 second 30 seconds Fault ecognition Delay Low Pressure 30 seconds 30 seconds Start-Up Bypass Low Water/Air oil Limit Fault ecognition Delay Low Water/Air oil Limit Fault ecognition Delay ondensate Overflow 2 minutes 30 seconds 30 seconds 30 seconds 30 seconds 30 seconds Thermostat all ecognition Time 2 seconds 2 seconds Auxiliary Heat Staging Delay Emergency Heat Staging Delay 5 minutes 2 minutes 20 seconds 7.5 seconds Water Valve Slow Open Delay 90 seconds 90 seconds eheat Delay 30 seconds 30 seconds Aurora LED Flash odes Slow Flash Fast Flash Flash ode 1 second on and 1 second off 100 milliseconds on and 100 milliseconds off 100 milliseconds on and 400 milliseconds off with a 2 second pause before repeating andom Start Delay Status LED (LED1, reen) onfiguration LED (LED2, Yellow) Fault LED (LED3, ed) Status LED (LED1, reen) Fast Flash Fast Flash Fast Flash onfiguration LED (LED2, Yellow) Fault LED (LED3, ed) Normal Mode ON No Software Overide Flash EM Setting Normal Mode OFF ontrol is Non-Functional OFF DIP Switch Overide Slow Flash Input Fault Lockout Flash ode 1 Test Mode Slow Flash EM onfigure Mode Fast Flash High Pressure Lockout Flash ode 2 Lockout Active Dehumidification Mode eserved eserved Load Shed ESD eserved Fast Flash Flash ode 2 Flash ode 3 Flash ode 4 Flash ode 5 Flash ode 6 Flash ode 7 eset onfigure Mode Off Low Pressure Lockout Low Air oil Limit Lockout - FP2 Low Water oil Limit Lockout - FP1 eserved ondensate Overflow Lockout Over/Under Voltage Shutdown eserved eserved Air/Water oil Limit Sensor Error Flash ode 3 Flash ode 4 Flash ode 5 Flash ode 6 Flash ode 7 Flash ode 8 Flash ode 9 Flash ode 10 Flash ode 11 L1 Factory Low Voltage Wiring Factory Line Voltage Wiring Field Low Voltage Wiring Field Line Voltage Wiring Optional Block D Voltage PB Traces Field Zone Sensor Wiring Internal Junction Quick onnect Terminal Field Wiring Lug round elay ontacts N.O., N.. apacitor Fuse Temperature Switch ompressor ontactor O ondensate Overflow Sensor ES Emergency Shutdown HP High Pressure Switch LP Low Pressure Switch FD Freeze Detection Sensor F1 Fuse Legend T Y Thermistor elay oil Switch - ondensate Overflow Switch - High pressure Switch - Low pressure Polarized connector Light Emitting Diode - reen Light Emitting Diode - Yellow Light Emitting Diode - ed Wire nut SW1 Push button SW2 DIP package 8 position PB Power Block B Blower elay V eversing Valve oil 2 2 F Y1 JW2 - Alarm HP HP LP LP FP2 FP2 FP1 FP1 EV EV LO HI F F P2 P4 Factory P5 Factory PWM FM EM PWM P13 SW1 Test V K1 K2 Hi K3 Fan K4 Alarm K5 Acc K6 Field onnections ES LS ALM AL A c A no A nc Off LED1 FP1 15 o F/30 o F FP2 15 o F/30 o F Fault V B/O A Dip 4 LED3 A Dip 5 Dual/Single L Pulse/ontinuous Status eheat/normal P9 LO P1 LO Factory Use P11 AUOA BASE ONTOL Factory Fan onnection O/B Field onnections O/B SW2 On 1 LED2 2 Y 3 onfig Y1 Y2 W Y1 Y2 W DH DH om1 om2 3A-Fuse P3 Factory P6 P7 S 485 P8 EH1 S485 Exp S485 NET EH2 EH1 O N/A (+) (-) (+) (-) 24

25 L SEIES INSTALLATION MANUAL Wiring Schematics cont. AB - with EM Motor and Electronic Stat /60/1 ed B 4 2 Black (27) 24V Emergency Shutdown ed (17) Auto Unit Power Supply /60/1 or round /60/1 Lug Handi - Box Black Yellow Fan ompressor White (18) ycled ontinuous Blue S Tan (33) T2 L2 ed Transformer 24V Black/White NOTE 1 ed 208V Blue 230V/265V P4 EVEV FP1 FP1 FP2 FP2 LPS LPS HPS HPS P5 2 2 LO F F 2 HI P9 JW2 ed L1 Black T1 Black ST Yellow (13) Black T ed F1-3A PWM Black Black (12) ed (11) FM ed (11) ed Orange Yellow (13) Orange (14) Blue (T6) Not Used Mode Switch Fan Mode Switch ed (19) P1 LO O/B Y2 SW1 W Test Mode Black (31) ed (32) DH K1-V elay K3-2 elay K2- elay K4-Fan elay ALM Status LED3 Aurora Base ontrol (AB) P13 Fault LED1 On Off FP1 15 F/30 F FP2 15 F/30 F V B/O Acc Dip 4 Acc Dip 5 Dual/Single L Output Type Future Use SW2 onfig LED2 Y AL om2 om1 LED5 LED5 S485 NET P8 - + P7 A OM A NO A N Y1 F ed ES ed ES Yellow 470 esistor HP LP FD V 470 T V Black (15) Violet (14) Black (13) B White (12) Black (10) Black (09) Blue (08) Blue (07) Yellow Yellow Orange (02) Orange (01) S485 EXP Y1 P3 EH2 EH1 O P6 - + Brown (23) ondensate S485 NET 2 F ed (19) K5-Alarm elay K6-Acc elay reen (00) P2 Black (12) EH1 ES LS Note 3 Orange (14) reen Yellow EM Motor EM Motor Module reen/yellow Note 3 Blue Yellow White Fan Speed Switch High Low Black (25) Electronic THEMOSTAT Ther IN PUT mistor 24 V A A Heat T3 T1 T2 T1 T3 T2 T4 T4 T5 T6 T6 T5 B ool SHUT J1 DOWN Overide Shut down 25

26 1 2 3 L SEIES INSTALLATION MANUAL Wiring Schematics cont. AB - with EM Motor and Electronic Stat /60/1 Accessory elay Operation SW2-4 SW2-5 ycle with Blower On On ycle with ompressor Off Off Water Valve Slow Open On Off Outdoor Air Damper Off On Aurora Timing Events Event Normal Mode Test Mode andom Start Delay 5 to 80 seconds 1 second ompressor On Delay 5 seconds < 1 second ompressor Minimum On Time 2 minutes 5 seconds ompressor Short ycle Delay 4 minutes 15 seconds Blower Off Delay 30 seconds 2 seconds Fault ecognition Delay High Pressure Start-Up Bypass Low Pressure Less than 1 second 2 minutes Less than 1 second 30 seconds Fault ecognition Delay Low Pressure 30 seconds 30 seconds Start-Up Bypass Low Water/Air oil Limit Fault ecognition Delay Low Water/Air oil Limit Fault ecognition Delay ondensate Overflow 2 minutes 30 seconds 30 seconds 30 seconds 30 seconds 30 seconds Thermostat all ecognition Time 2 seconds 2 seconds Auxiliary Heat Staging Delay Emergency Heat Staging Delay 5 minutes 2 minutes 20 seconds 7.5 seconds Water Valve Slow Open Delay 90 seconds 90 seconds eheat Delay 30 seconds 30 seconds Notes: 1 Swap blue and red leads for 208V operation. 2 Use AL Output for 24V lockout. 3 Factory wired. efer to blower table settings. L1 Blower Settings High Low L*15 Yellow White L*18 Blue Yellow Factory Low Voltage Wiring Factory Line Voltage Wiring Field Low Voltage Wiring Field Line Voltage Wiring Optional Block D Voltage PB Traces Field Zone Sensor Wiring Internal Junction Quick onnect Terminal Field Wiring Lug round elay ontacts N.O., N.. apacitor Fuse Temperature Switch ompressor ontactor O ondensate Overflow Sensor ES Emergency Shutdown HP High Pressure Switch LP Low Pressure Switch FD Freeze Detection Sensor F1 Fuse Legend T Y Thermistor elay oil Switch - ondensate Overflow Switch - High pressure Switch - Low pressure Polarized connector Light Emitting Diode - reen Light Emitting Diode - Yellow Light Emitting Diode - ed Wire nut SW1 Push button SW2 DIP package 8 position PB Power Block B Blower elay V eversing Valve oil Aurora LED Flash odes Slow Flash Fast Flash Flash ode 1 second on and 1 second off 100 milliseconds on and 100 milliseconds off 100 milliseconds on and 400 milliseconds off with a 2 second pause before repeating andom Start Delay Status LED (LED1, reen) onfiguration LED (LED2, Yellow) Fault LED (LED3, ed) Status LED (LED1, reen) Fast Flash Fast Flash Fast Flash onfiguration LED (LED2, Yellow) Fault LED (LED3, ed) Normal Mode ON No Software Overide Flash EM Setting Normal Mode OFF ontrol is Non-Functional OFF DIP Switch Overide Slow Flash Input Fault Lockout Flash ode 1 Test Mode Slow Flash EM onfigure Mode Fast Flash High Pressure Lockout Flash ode 2 Lockout Active Dehumidification Mode eserved eserved Load Shed ESD eserved Fast Flash Flash ode 2 Flash ode 3 Flash ode 4 Flash ode 5 Flash ode 6 Flash ode 7 eset onfigure Mode Off Low Pressure Lockout Low Air oil Limit Lockout - FP2 Low Water oil Limit Lockout - FP1 eserved ondensate Overflow Lockout Over/Under Voltage Shutdown eserved eserved Air/Water oil Limit Sensor Error Flash ode 3 Flash ode 4 Flash ode 5 Flash ode 6 Flash ode 7 Flash ode 8 Flash ode 9 Flash ode 10 Flash ode F Y1 JW2 - Alarm HP HP LP LP FP2 FP2 FP1 FP1 EV EV LO HI F F P2 ES P4 Factory P5 Factory LS PWM FM EM PWM P13 ALM AL SW1 Test V K1 K2 Hi K3 Fan K4 Alarm K5 Acc K6 Field onnections A c A no A nc P9 LO P1 LO LED1 P11 Off FP1 15 o F/30 o F FP2 15 o F/30 o F Fault V B/O A Dip 4 LED3 A Dip 5 Dual/Single L Pulse/ontinuous Status eheat/normal Factory Use AUOA BASE ONTOL Factory Fan onnection O/B Field onnections O/B SW2 On 1 LED2 2 Y 3 onfig Y1 Y2 W Y1 Y2 W DH DH om1 om2 3A-Fuse P3 Factory P6 P7 S 485 P8 EH1 S485 Exp S485 NET EH2 EH1 O N/A (+) (-) (+) (-) Page 1 26

27 L SEIES INSTALLATION MANUAL ontrols ontrol eneral Description Application Display/Interface Protocol Thermostat Options M ontrol The M (ompressor control module) is a more reliable replacement for electro-mechanical control applications. It features a small microprocessor board that handles the lockout function of the unit. A second microporcessor handles the unit mounted thermostat for maintaining accurate room temperature. esidential and commercial applications requiring minimal but reliable controls. Includes andom Start, High and low pressure switches and auto changeover capability. Dial thermostat with Hi and Low blower speeds, and auto changeover or cont blower selection switches. None Unit Mounted Digital Dial Thermostat emote Mounted Standard Thermostat Standard M ontrol Features ompressor control module (M) controls are standard on the L Series Low Sill onsole heat pump. This control features unit mounted thermostat and switches, Features of the standard control are: Easy to understand color coded thermostat adjustment markings. Large, rocker type mode and blower switches. Internally mounted blower switch to choose cycled or constant blower operation. High pressure and low pressure safety controls to protect the unit components. Lockout circuit to shut down unit operation upon receipt of a fault indicator from the safety controls. A 24 volt control circuit allows for safe and easy diagnosis. If either the low or high pressure safety switches are opened, the compressor and reversing valve are disabled by the lockout relay. Unit operation will resume only after the voltage to the unit is interrupted or the mode switch is placed in the Off position. The user selects either Heat/ool or Fan Only on the mode switch, then either High or Low at the blower speed switch. The temperature can be controlled by rotating the thermostat control knob. Unit Mounted ontrol The Fan Only setting provides constant blower operation. In the Heat mode, a call for heat by the thermostat closes the compressor contactor contacts, energizing the compressor, which will run until the thermostat is satisfied. In the ool mode, a call for cooling by the thermostat energizes the reversing valve and closes the compressor contactor contacts, energizing the compressor, which will run until the thermostat is satisfied. 27

28 L SEIES INSTALLATION MANUAL ontrols cont. Aurora Base ontrol NOTE: efer to the Aurora Base ontrol Application and Troubleshooting uide and the Instruction uide: Aurora Interface and Diagnostics (AID) Tool for additional information. ontrol Features Software AB Standard Version 3.0 Single or Dual apacity ompressors Either single or dual capacity compressors can be operated. Variable Speed EM Blower Motor Option (If Applicable) A Variable Speed EM blower motor can be driven directly using the onboard PWM output. Four blower speeds are available based upon the, Y1, Y2, and W input signals to the board. The blower speeds can be changed either by the EM manual configurations mode method or by using the Aurora AID Tool directly. All four blower speeds can be set to the same speed if desired. 5-Speed EM Blower Motor Option (If Applicable) A 5-Speed EM blower motor will be driven directly using the thermostat connections. Any of the, Y1, or Y2/W signals can drive any of the 5 available pre-programmed blower speeds on the motor. All 5 Series "" vintage units will be wired this way at the factory. Other ontrol Features andom start at power up Anti-short cycle protection High and low pressure cutouts Loss of charge Water coil freeze detection Air coil freeze detection Over/under voltage protection ondensate overflow sensor Load shed Dehumidification (where applicable) Emergency shutdown Hot gas reheat operation (where applicable) Diagnostic LED Test mode push button switch Two auxiliary electric heat outputs Alarm output Accessory output with N.O. and N.. Modbus communication (master) Modbus communication (slave) Field Selectable Options via Hardware DIP Switch (SW1) Test/onfiguration Button (See SW1 Operation Table) Test Mode The control is placed in the test mode by holding the push button switch SW1 for 2-5 seconds. In test mode most of the control timings will be shortened by a factor of sixteen (16). LED3 (green) will flash at 1 second on and 1 second off. Additionally, when entering test mode LED1 (red) will flash the last lockout one time. Test mode will automatically time out after 30 minutes. Test mode can be exited by pressing and holding the SW1 button for 2 to 5 seconds or by cycling the power. NOTE: Test mode will automatically be exited after 30 minutes. Variable Speed EM onfiguration Mode (If Applicable) The control is placed in the EM configuration mode by holding the pushbutton switch SW1 for 5 to 10 seconds, the high, low, and EM speeds can be selected by following the LED display lights. LED2 (yellow) will fast flash when entering the EM configuration. When setting speed LED3 (green) will be continuously lit, for low speed LED1 (red) will be continuously lit, and for high speed both LED3 (green) and LED1 (red) will be continuously lit. During the EM configuration mode LED2 (yellow) will flash each of the 12 possible blower speeds 3 times. When the desired speed is flashed press SW1, LED2 will fast flash until SW1 is released. speed has now been selected. Next select low speed, and high speed blower selections following the same process above. After third selection has been made, the control will exit the EM configuration mode. Aux fan speed will remain at default or current setting and requires the AID Tool for adjustment. eset onfiguration Mode The control is placed in reset configuration mode by holding the push button switch SW1 for 50 to 60 seconds. This will reset all configuration settings and the EEPOM back to the factory default settings. LED3 (green) will turn off when entering reset configuration mode. Once LED3 (green) turns off, release SW1 and the control will reset. DIP Switch (SW2) SW2-1 FP1 Selection Low water coil temperature limit setting for freeze detection. On = 30 F; Off = 15 F. SW2-2 FP2 Selection On = 30 F; Off = N/A SW2-3 V O/B - thermostat type. Heat pump thermostats with O output in cooling or B output in Heating can be selected. On = O; Off = B. SW2-4 Access elay Operation (P2) and 2-5 Access elay Operation SW2-4 SW2-5 ycle with Blower ON ON ycle with ompressor OFF OFF Water Valve Slow Opening ON OFF ycle with omm. T-stat Hum md OFF ON 28

29 L SEIES INSTALLATION MANUAL ontrols cont. ycle with Blower - The accessory relay will cycle with the blower output. ycle with ompressor - The accessory relay will cycle with the compressor output. Water Valve Slow Opening - The accessory relay will cycle and delay both the blower and compressor output for 90 seconds. SW2-6 Operation selection of single or dual capacity compressor. On = Single Stage; Off = Dual apacity SW2-7 Lockout and Alarm Outputs (P2) selection of a continuous or pulsed output for both the LO and ALM Outputs. On = ontinuous; Off = Pulsed SW2-8 Future Use Alarm Jumper lip Selection From the factory, ALM is connected to 24 VA via JW2. By cutting JW2, ALM becomes a dry contact connected to AL. Variable Speed EM Blower Speeds The blower speeds can be changed either by using the EM manual configurations mode method or by using the Aurora AID Tool directly (see Instruction uide: Aurora Interface and Diagnostics (AID) Tool topic). Field Selectable Options via Software (Selectable via the Aurora AID Tool) EM Blower Speeds An EM blower motor can be driven directly using the onboard PWM output. Four blower speeds are available, based upon the, Y1 (low), Y2 (high), and Aux input signals to the board. The blower speeds can be changed either by the EM manual configurations mode method (see EM onfiguration Mode topic) or by using the Aurora AID Tool directly. All four blower speeds can be set to the same speed if desired. Aux blower speed will remain at default or current setting and requires the AID Tool for adjustment. Safety Features The following safety features are provided to protect the compressor, heat exchangers, wiring and other components from damage caused by operation outside of design conditions. Fuse a 3 amp automotive type plug-in fuse provides protection against short circuit or overload conditions. Anti-Short ycle Protection 4 minute anti-short cycle protection for the compressor. andom Start 5 to 80 second random start upon power up. Fault etry in the fault condition, the control will stage off the outputs and then try again to satisfy the thermostat Y input call. Once the thermostat input calls are satisfied, the control will continue on as if no fault occurred. If 3 consecutive faults occur without satisfying the thermostat Y input call, then the control will go to Lockout mode. Lockout when locked out, the blower will operate continuously in speed, and PS blower motor output will remain on. The Alarm output (ALM) and Lockout output (L) will be turned on. The fault type identification display LED1 (ed) shall flash the fault code. To reset lockout conditions with SW2-8 On, thermostat inputs Y1, Y2, and W must be removed for at least 3 seconds. To reset lockout conditions with SW2-8 Off, thermostat inputs Y1, Y2, W, and DH must be removed for at least 3 seconds. Lockout may also be reset by turning power off for at least 30 seconds or by enabling the emergency shutdown input for at least 3 seconds. Lockout With Emergency Heat - if the control is locked out in the heating mode, and a Y2 or W input is received, the control will operate in the emergency heat mode while the compressor is locked out. The first emergency heat output will be energized 10 seconds after the W input is received, and the blower will shift to high speed. If the control remains locked out, and the W input is present, additional stage of emergency heat will stage on after 2 minutes. When the W input is removed, all of the emergency heat outputs will turn off, and the EM blower will shift to speed and PS blower motor output will remain on. High Pressure fault is recognized when the Normally losed High Pressure Switch, P4-9/10 opens, no matter how momentarily. The High Pressure Switch is electrically in series with the ompressor ontactor and serves as a hardwired limit switch if an overpressure condition should occur. Low Pressure - fault is recognized when the Normally losed Low Pressure Switch, P4-7/8 is continuously open for 30 seconds. losure of the LPS any time during the 30 second recognition time restarts the 30 second continuous open requirement. A continuously open LPS shall not be recognized during the 2 minute startup bypass time. Loss of harge fault is recognized when the Normally losed Low Pressure Switch, P4-7/8 is open prior to the compressor starting. ondensate Overflow - fault is recognized when the impedance between this line and 24 VA common or chassis ground drops below 100K ohms for 30 seconds continuously. Freeze Detection (oax) - set points shall be either 30 F or 15 F. When the thermistor temperature drops below the selected set point, the control shall begin counting down the 30 seconds delay. If the thermistor value rises above the selected set point, then the count should reset. The resistance value must remain below the selected set point for the entire length of the appropriate delay to be recognized as a fault. This fault will be ignored for the initial 2 minutes of the compressor run time. Freeze Detection (Air oil) - uses the FP2 input to protect against ice formation on the air coil. The FP2 input will operate exactly like FP1 except that the set point is 30 degrees and is not field adjustable. 29

30 L SEIES INSTALLATION MANUAL ontrols cont. Over/Under Voltage Shutdown - An over/under voltage condition exists when the control voltage is outside the range of 18 VA to 30 VA. If the over/under voltage shutdown lasts for 15 minutes, the lockout and alarm relay will be energized. Over/under voltage shutdown is selfresetting in that if the voltage comes back within range of 18 VA to 30 VA for at least 0.5 seconds, then normal operation is restored. Operation Description Power Up - The unit will not operate until all the inputs and safety controls are checked for normal conditions. The unit has a 5 to 80 second random start delay at power up. Then the compressor has a 4 minute anti-short cycle delay after the random start delay. Standby In standby mode, Y1, Y2, W, DH, and are not active. Input O may be active. The blower and compressor will be off. Heating Operation Single ompressor Heating, 2nd Stage (Y1, Y2) The compressor will be staged to full capacity 20 seconds after Y2 input is received. The EM blower will shift to high speed seconds after the Y2 input is received. Dual ompressor Heating, 2nd Stage (Y1, Y2) In dual compressor operation, two AB boards used in 24 VA operation, there will be a Y2 call to the Y1 input on the second AB. The compressor will stage to full capacity 30 seconds after Y1 input is received to the second board. Single ompressor Heating, 3rd Stage (Y1, Y2, W) The hot water pump is de-energized and the first stage of electric heat is energized 10 seconds after the W command is received. If the demand continues the second stage of electric heat will be energized after 5 minutes. Dual ompressor Heating, 3rd Stage (Y1, Y2, W) - The first stage of electric heat is energized 10 seconds after the W command is received. If the demand continues the second stage of electric heat will be energized after 5 minutes Emergency Heat (W) - The blower will be started on speed, 10 seconds later the first stage of electric heat will be turned on. 5 seconds after the first stage of electric heat is energized the blower will shift to Aux speed. If the emergency heat demand is not satisfied after 2 minutes the second electric heat stage will be energized. ooling Operation In all cooling operations, the reversing valve directly tracks the O input. Thus, anytime the O input is present, the reversing valve will be energized. Single ompressor ooling, 2nd Stage (Y1, Y2, 0) The compressor will be staged to full capacity 20 seconds after Y2 input was received. The EM blower will shift to high speed 15 seconds after the Y2 input was received. Dual ompressor ooling, 2nd Stage (Y1, Y2, O) In dual compressor operation, two AB boards used in 24 VA operation, there will be a Y2 call to the Y1 input on the second AB. The compressor will stage to full capacity 30 seconds after Y1 input is received to the second board. Blower () - The blower will start immediately upon receiving a thermostat command. If there are no other commands from the thermostat the EM will run on speed until the command is removed. egardless of blower input () from the thermostat, the blower will remain on for 30 seconds at the end of each heating, cooling, and emergency heat cycle. Dehumidification (Y1, O, DH or Y1, Y2, O, DH) - When a DH command is received from the thermostat during a compressor call for cooling the EM blower speed will be reduced by 15% to increase dehumidification. Emergency Shutdown - Four (4) seconds after a valid ES input, P2-7 is present, all control outputs will be turned off and remain off until the emergency shutdown input is no longer present. The first time that the compressor is started after the control exits the emergency shutdown mode, there will be an anti-short cycle delay followed by a random start delay. Input must be tied to common to activate. ontinuous Blower Operation - The blower output will be energized any time the control has a input present, unless the control has an emergency shutdown input present. The blower output will be turned off when input is removed. Load Shed - The LS input disables all outputs with the exception of the blower output. When the LS input has been cleared, the anti-short cycle timer and random start timer will be initiated. Input must be tied to common to activate. Blower () - The blower will start immediately upon receiving a thermostat command. If there are no other commands from the thermostat the EM will run on speed until the command is removed. egardless of blower input () from the thermostat, the blower will remain on for 30 seconds at the end of each heating cycle. 30

31 L SEIES INSTALLATION MANUAL ontrols cont. Aurora Base ontrol LED Displays These three LEDs display the status, configuration, and fault codes for the control. These can also be read in plain English via the Aurora AID Tool. Status LED (LED3, reen) Description of Operation Fault LED, reen Normal Mode ON ontrol is Non-functional OFF Test Mode Slow Flash Lockout Active Fast Flash Dehumidification Mode Flash ode 2 (Future Use) Flash ode 3 (Future Use) Flash ode 4 Load Shed Flash ode 5 ESD Flash ode 6 (Future Use) Flash ode 7 onfiguration LED (LED2, Yellow) Description of Operation No Software Overwritten DIP Switch was Overwritten EM onfiguration Mode Fault LED (LED1, ed) ed Fault LED onfiguration LED, Yellow Flashing EM Setting Slow Flash Fast Flash LED Flash ode* Lockout eset/ emove Normal - No Faults OFF Fault - Input 1 No Auto Fault - High Pressure 2 Yes Hard or Soft Fault - Low Pressure 3 Yes Hard or Soft Fault - Freeze Detection FP2 4 Yes Hard or Soft Fault - Freeze Detection FP1 5 Yes Hard or Soft Fault - ondensate Overflow 7 Yes Hard or Soft Fault - Over/Under Voltage 8 No Auto Fault - FP1 & FP2 Sensor Error 11 Yes Hard or Soft NOTE: All codes >11 use long flash for tens digit and short flash for the ones digit. 20, 30, 40, 50, etc. are skipped. AB Basic Faults Aurora Interface and Diagnostics (AID) Tool The Aurora Interface and Diagnostics (AID) Tool is a device that is a member of the Aurora network. The AID Tool is used to troubleshoot equipment which uses the Aurora control via Modbus TU communication. The AID Tool provides diagnostics, fault management, EM setup, and system configuration capabilities to the Aurora family of controls. An AID Tool is recommended, although not required, for EM airflow settings. The AID Tool simply plugs into the exterior of the cabinet in the AID Tool port. AB ontrol Board Layout 2 2 F Y1 JW2 - Alarm HP HP LP LP FP2 FP2 FP1 FP1 EV EV LO HI F F Factory Factory P2 P4 P5 PWM FM EM PWM P13 SW1 Test V K1 K2 Hi K3 Fan K4 Alarm K5 Acc K6 Fi eld onnections Faul t LED3 A Dip 5 Dual/Single L Pulse/ontinuous Status eheat/normal P9 LO P1 LED1 Factory Use P11 AUOA BASE ONTOL Off FP1 15 o F/30 o F FP2 15 o F/30 o F V B/O A Dip 4 Factory Fan onnection O/B Y1 Y2 Fi eld onnections 8 SW2 W On 1 LED2 2 Y 3 onfig DH om1 om2 3A-Fuse P3 Factory P6 S485 Exp P7 S 485 P8 S485 NET EH1 EH2 EH1 O N/A (+) (-) ES LS ALM AL A c A no A nc LO O/B Y1 Y2 W DH 31

32 L SEIES INSTALLATION MANUAL ontrols cont. Aurora Advanced ontrol Features The Aurora Advanced ontrol system expands on the capability of the Aurora Base ontrol (AB) by adding the Aurora Expansion Board (AXB). All of the preceding features of the Aurora Base ontrol are included. The following control description is of the additional features and capability of the Aurora advanced control. It is highly recommended the installing/servicing contractor obtain an Aurora Interface and Diagnostic Tool (AID) and specialized training before attempting to install or service an Aurora Advanced control system. The additional AXB features include the following: AXB DIP Switch DIP 1 - ID: This is the AXB ModBus ID and should always read On. DIP 2 & 3 - Future Use DIP 4 & 5 - Accessory elay2: A second, DIP configurable, accessory relay is provided that can be cycled with the compressor 1 or 2, blower, or the Dehumidifier (DH) input. This is to complement the Accessory 1 elay on the AB board. Position DIP 4 DIP 5 Description 1 ON ON ycles with Fan or EM (or ) 2 OFF ON ycles with 1 first stage of compressor or compressor spd 6 3 ON OFF ycles with 2 second stage of compressor or compressor spd OFF OFF ycles with DH input from AB board Advanced Hot Water enerator ontrol (Domestic Hot Water Option) In lieu of the Base Hot Water enerator ontrol, the Advanced features an AID Tool selectable temperature limit and microprocessor control of the process. This will maximize hot water generation and prevent undesirable energy use. An alert will occur when the hot water input temperature is at or above setpoint (100 F F) for 30 continuous seconds (130 F is the default setting). This alert will appear as an E15 on the AID Tool and the hot water pump de-energizes. Hot water pump operations resume on the next compressor cycle or after 15 minutes of continuous compressor operation during the current thermostat demand cycle. Since compressor hot gas temperature is dependent on loop temperature in cooling mode, loop temperatures may be too low to allow proper heating of water. The control will monitor water and refrigerant temperatures to determine if conditions are satisfactory for heating water. LED1 (red LED) will flash code 15 when the DHW limit is reached and when conditions are not favorable for water heating. Error code 15 will also be displayed on the AID Tool in the fault screen. This flash code is a noncritical alert and does not necessarily indicate a problem. ompressor Monitoring The AXB includes two current transducers to monitor the compressor current and starting characteristics. Open circuits or welded contactor faults will be detected. A fault will produce an E10 code. IntelliZone2 Zoning ompatibility (Optional IntelliZone2 Zoning) A dedicated input to connect and communicate with the IntelliZone2 (IZ2) zoning system is provided on P7. The is a dedicated communication port using a proprietary ModBus protocol. An AXB can be added to other selected AB-only systems as well. Then an advanced communicating IntelliZone2 zoning system can be added to AB-only systems. onsult the IntelliZone2 literature for more information. Variable Speed Pump This input and output are provided to drive and monitor a variable speed pump. The VS pump output is a PWM signal to drive the variable speed pump. The minimum and maximum level are set using the AID Tool. 75% and 100% are the default settings respectively. The VS data input allows a separate PWM signal to return from the pump giving fault and performance information. Fault received from the variable speed pump will be displayed as E16. Modulating Water Valve This output is provided to drive a modulating water valve. Through advanced design the 0-10VD valve can be driven directly from the VS pump output. The minimum and maximum level are set in the same way as the VS pump using the AID Tool. 75% and 100% are the default settings respectively. Loop Pump Linking This input and output are provided so that two units can be linked together with a common flow center. When either unit has a call for loop pump, both unit s loop pump relays and variable speed pumps are energized. The flow center then can simply be wired to either unit. The output from one unit should be routed to the input of the other. If daisy chained up to 16 heat pumps can be wired and linked together in this fashion. 32

33 L SEIES INSTALLATION MANUAL ontrols cont. Advanced ommunication Ports ommunication ports P6 and P8 will provide future expansion via dedicated protocols. These are for future use. Smart rid-on Peak (S) Input The 'On Peak' input was designed to allow utilities to utilize simple radio controlled switches to control the On Electric Peak behavior of the 5 and 7 Series eothermal Heat Pumps. With a closed contact signal, this input will limit the operation and thus the power consumption of the unit by one of the below selections. The AID Tool will allow configuration of this input for the action of: No Action Disable compressor operation until removed o to On Peak thermostat settings until removed [equires om T-Stat] (Future elease) ompressor limited to 50% or low cap until removed [dual capacity or variable speed only] (Future elease) Disable compressor operation for 1/2 hr (can be removed immediately) (Future elease) Then Flash ode 7 on the reen LED for the 'On Peak' mode. And On Peak will display on communicating thermostats. Home Automation 1 and 2 Inputs The Home automation inputs are simple closed contact inputs that will trigger an AID Tool and thermostat alert for the homeowner. These would require optional sensors and or equipment for connection to the AXB board. With two inputs two different sensors can be selected. The selected text will then be displayed on the AID Tool and communicating thermostats. These events will NOT alter functionality or operation of the heat pump/accessories and is for homeowner/service notification only. Home Automation 1 - E23 HA1 With a closed dry contact signal, this input will cause an alarm and Alert ode 23 to indicate on the stat or flash on AB. The AID Tool will allow configuration of this input between the following selections: No Action Home Automation Fault [no lockout info only] - Output from home automation system Security Alarm [no lockout info only] - Output from home security Sump Alarm Fault [no lockout info only] - Switch output from sump sensor Smoke/O Alarm Fault [no lockout info only] - Switch output from Smoke/O sensor Dirty Filter Alarm [no lockout info only] - Output from dirty filter sensor Home Automation 2 E24 HA2 With a closed dry contact signal, this input will cause an alarm and Alert ode 24 to indicate on the stat or flash on AB. The AID Tool will allow configuration of this input between the following selections: No Action Home Automation Fault [no lockout info only] - Output from home automation system Security Alarm [no lockout info only] - Output from home security Sump Alarm Fault [no lockout info only] - Switch output from sump sensor Smoke/O Alarm Fault [no lockout info only] - Switch output from Smoke/O sensor Dirty Filter Alarm [no lockout info only] - Output from dirty filter sensor Monitoring Sensor Kits Energy Monitoring (Standard Sensor Kit on Advanced models) The Energy Monitoring Kit includes two current transducers (blower and electric heat) added to the existing two compressor sensors so that the complete power usage of the heat pump can be measured. The AID Tool provides configuration detail for the type of blower motor and a line voltage calibration procedure to improve the accuracy. This information can be displayed on the AID Tool or selected communicating thermostats. The TPM32U03/04 will display instantaneous energy use while the color touchscreen TP32U01 will in addition display a 13 month history in graph form. efrigerant Monitoring (optional sensor kit) The optional efrigerant Monitoring Kit includes two pressure transducers, and three temperature sensors, heating liquid line, suction temperature and existing cooling liquid line (FP1). These sensors allow the measurement of discharge and suction pressures, suction and liquid line temperatures as well as superheat and subcooling. This information will only be displayed on the AID Tool. Performance Monitoring (optional sensor kit) The optional Performance Monitoring Kit includes three temperature sensors, entering and leaving water, leaving air temperature and a water flow rate sensor. With this kit heat of extraction and rejection will be calculated. This requires configuration using the AID Tool for selection of water or antifreeze. 33

34 L SEIES INSTALLATION MANUAL ontrols cont. Special Modes and Applications 5-Speed EM Blower Motor Normally the 5-Speed EM motor can be driven off of thermostat signals and the AB connector P9. ommunicating thermostats, however present a special problem in this application since they operate without 24 VA thermostat signals. The AB board is wired to operate these systems from the alternate relay output signals 1, 2, Fan, and EH1 and should be wired for this. ommunicating Digital Thermostats The Aurora controls system also features either monochromatic or color touch screen graphic display thermostats for user interface. These displays not only feature easy to use graphical interface but display alerts and faults in plain English. Many of the features discussed here may not be applicable without these thermostats. Aurora Advanced ontrol LED Displays These three LEDs display the status, configuration, and fault codes for the control. These can also be read in plain English via the Aurora AID Tool. Status LED (LED3, reen) Description of Operation Fault LED, reen Normal Mode ON ontrol is Non-functional OFF Test Mode Slow Flash Lockout Active Fast Flash Dehumidification Mode Flash ode 2 Load Shed Flash ode 5 Emergency Shutdown Flash ode 6 On Peak Mode Flash ode 7 (Future Use) Flash ode 8 (Future Use) Flach ode 9 onfiguration LED (LED2, Yellow) Dehumidification Passive In passive dehumidification mode, the airflow is reduced by 15% from the heating airflow setting. If cooling airflow is set to +5, -5 or -10% of heating airflow it will automatically be set to -15% of heating airflow whenever the dehumidification call is present in the communicating stat or from the thermostat input DH. If the airflow for cooling is already set to -15% no airflow change will be noticed from normal cooling. Dehumidification mode will be shown on the AB and the communicating thermostats. Description of Operation No Software Overwritten DIP Switch Overwritten EM onfiguration Mode eset onfiguration Mode onfiguration LED, Yellow EM Setting Slow Flash Fast Flash OFF Fault LED (LED1, ed) AB Basic Faults ed Fault LED LED Flash ode * Lockout eset/ emove Fault ondition Summary Normal - No Faults Off - Fault-Input 1 No Auto Tstat input error. Autoreset upon condition removal. Fault-High Pressure 2 Yes Hard or Soft HP switch has tripped (>600 psi) Fault-Low Pressure 3 Yes Hard or Soft Low Pressure Switch has tripped (<40 psi for 30 continuous sec.) Fault-Freeze Detection FP2 4 Yes Hard or Soft Freeze protection sensor has tripped (<15 or 30 degf for 30 continuous sec.) Fault-Freeze Detection FP1 5 Yes Hard or Soft Freeze protection sensor has tripped (<15 or 30 degf for 30 continuous sec.) Fault-ondensate Overflow 7 Yes Hard or Soft ondensate switch has shown continuity for 30 continuous sec. Fault-Over/Under Voltage 8 No Auto Instantaneous voltage is out of range. **ontrols shut down until resolved. Fault-FP1 Snsr Error 11 Yes Hard or Soft If FP1 Sensor Error Fault-ompressor Monitor 10 Yes Hard or Soft Open rkt, un, Start or welded cont Non-riticAXBSnsrErr 13 No Auto Any Other Sensor Error riticaxbsnsrerr 14 Yes Hard or Soft Sensor Error for EEV or HW Alert-HotWtr 15 No Auto HW over limit or logic lockout. HW pump deactivated. Fault-VarSpdPump 16 No Auto Alert is read from PWM feedback. Not Used 17 No Auto IZ2 om Fault. Autoreset upon condition removal. Non-ritomErr 18 No Auto Any non-critical com error Fault-ritomErr 19 No Auto Any critical com error. Auto reset upon condition removal Alarm - Low Loop Pressure 21 No Auto Loop pressure is below 3 psi for more than 3 minutes Alarm - Home Automation 1 23 No Auto losed contact input is present on Dig 2 input - Text is configurable Alarm - Home Automation 2 24 No Auto losed contact input is present on Dig 3 input - Text is configurable NOTES: *All codes >11 use long flash for tens digit and short flash for the ones digit. 20, 30, 40, 50 etc. are skipped! Alert is a noncritical sensor or function that has failed. Normal operation of the heat pump is maintained but service is desired at some point. AB & AXB Advanced Faults 34

35 L SEIES INSTALLATION MANUAL Unit Startup Notes Electrical Disconnect Optional field installed console disconnect provides a permanent electrical connection to the main electrical supply branch. Wiring between the disconnect and the unit chassis is field supplied and allows the electrical power source to the chassis to be interrupted for unit servicing. Non-Fused onstructed of heavy gauge galvanized steel, the rocker style disconnect switch provides reliable electrical control. Wiring pigtails, using 12-gauge wires, are factory installed to simplify field wiring. Fused Similar in construction to the non-fused electrical disconnect. The fused disconnect is available in five models with equipment rated fuses to provide additional circuit protection. The fuses are panel mounted to allow easy inspection and removal without removing the cover on the disconnect. FD amp rated fuse FD amp rated fuse FD amp rated fuse FD amp rated fuse FD amp rated fuse Hydronic Loop ontroller for Boiler/Tower Installations The hydronic loop controller is a microprocessor based control panel for control of water loop heat rejector (tower), heat supplier (boiler), and/or water well pumps and circulation pumps. Includes audible and visual alarms, temperature indication, and add-on options of low switches, remote alarm sensor wells and pump alternator. 35

36 L SEIES INSTALLATION MANUAL Unit Startup hecklist/unit Startup Steps Before Powering Unit, heck The Following: High voltage is correct and matches nameplate. Fuses, breakers and wire size correct. Low voltage wiring complete. Piping completed and water system cleaned and flushed. Air is purged from closed loop system. Isolation valves are open, water control valves or loop pumps wired. ondensate line open and correctly pitched. Transformer switched to 208V if applicable. Dip switches are set correctly, if applicable. Blower rotates freely Air filter is clean and in position. Service/access panels are in place. eturn air temperature is between F heating and F cooling. 1. heck air coil cleanliness to ensure optimum performance. lean as needed according to maintenance guidelines. To obtain maximum performance the air coil should be cleaned before startup. A 10-percent solution of dishwasher detergent and water is recommended for both sides of coil, a thorough water rinse should follow. Startup Steps Note: omplete the Equipment Start-Up/ommissioning heck Sheet during this procedure. efer to thermostat operating instructions and complete the startup procedure. 1. Initiate a control signal to energize the blower motor. heck blower operation. 2. Initiate a control signal to place the unit in the cooling mode. ooling setpoint must be set below room temperature. 3. Be sure that the compressor and water control valve or loop pump(s) are activated. 4. Verify that the water flow rate is correct by measuring the pressure drop through the heat exchanger using the P/T plugs and comparing to unit capacity data in specification catalog. 5. heck the temperature of both the supply and discharge water (efer to Unit Operating Parameters tables). 6. heck for an air temperature drop of 15 F to 25 F across the air coil, depending on the fan speed and entering water temperature. 7. Adjust the cooling setpoint above the room temperature and verify that the compressor and water valve or loop pumps deactivate. 8. Initiate a control signal to place the unit in the heating mode. Heating set point must be set above room temperature. 9. heck the temperature of both the supply and discharge water (efer to Unit Operating Parameters tables). 10. heck for an air temperature rise of 20 F to 35 F across the air coil, depending on the fan speed and entering water temperature. 11. Adjust the heating setpoint below room temperature and verify that the compressor and water valve or loop pump deactivate. 12. During all testing, check for excessive vibration, noise or water leaks. orrect or repair as required. 13. Set system to desired normal operating mode and set temperature to maintain desired comfort level. 14. Instruct the owner/operator in the proper operation of the thermostat and system maintenance. Note: Be certain to fill out and forward all warranty registration papers. 36

37 L SEIES INSTALLATION MANUAL Operating Parameters Entering Water Temp F ooling Water Flow Suction Pressure Discharge Water Temp ise Air Temp Drop gpm/ton Superheat Subcooling psig Pressure psig F F DB Heating Entering Water Water Flow Suction Pressure Discharge Water Temp Drop Air Temp ise Temp F gpm/ton Superheat Subcooling psig Pressure psig F F DB NOTES: ooling performance based on entering air temperatures of 80 F DB, 67 F WB. 6/20/11 Heating performance based on entering air temperature of 70 F DB. Operating Limits Operating Limits ooling Heating ( F) ( ) ( F) ( ) Air Limits Min. Ambient Air ated Ambient Air Max. Ambient Air Min. Entering Air ated Entering Air db/wb 80.6/ / Max. Entering Air db/wb 110/83 43/ Water Limits Min. Entering Water Normal Entering Water Max. Entering Water NOTE: Minimum/maximum limits are only for start-up conditions, and are meant for bringing the space up to occupancy temperature. Units are not designed to operate at the minimum/maximum conditions on a regular basis. The operating limits are dependant upon three primary factors: 1) water temperature, 2) return air temperature, and 3) ambient temperature. When any of the factors are at the minimum or maximum levels, the other two factors must be at the normal level for proper and reliable unit operation. 37

38 L SEIES INSTALLATION MANUAL Pressure Drop Model Pressure Drop (psi) PM 30 F 50 F 70 F 90 F 110 F /10/13 ompressor and Thermistor esistance ompressor esistance Model 115/60/ /60/1 265/60/1 un Start un Start un Start /10/13 Thermistor esistance Thermistor Temperature ( F) Microprocessor esistance (Ohms) FX10 esistance (Ohms) 7/6/10 38

39 L SEIES INSTALLATION MANUAL efrigerant ircuit uideline Symptom Head Suction ompressor Air Temp. Water Temp. Superheat Subcooling Pressure Pressure Amp Draw Differential Differential Under harged System (Possible Leak) Low Low Low High Low Low Low Over harged System High High High Normal High Normal/Low Normal Low Air Flow Heating High High High High/Normal Low High Low Low Air Flow ooling Low Low Low Low/Normal High High Low Low Water Flow Heating Low/Normal Low/Normal Low Low High Low High Low Water Flow ooling High High High High Low Low High High Air Flow Heating Low Low Low Low High Low Low High Air Flow ooling Low High Normal High Low Low Normal High Water Flow Heating Normal Low Normal High Normal Normal Low High Water Flow ooling Low Low Low Low High Normal Low Low Indoor Air Temperature Heating Low Low Low Normal High Normal Normal/High Low Indoor Air Temperature ooling Low Low Low Normal/Low High Low Low High Indoor Air Temperature Heating High High High Normal/High Normal/Low Low Normal High Indoor Air Temperature ooling High High High High Low Low High estricted TXV (heck Service Advisory) High Low Normal/Low High High Low Low Insufficient ompressor (Possible Bad Valves) Low High Low High Normal/High Low Low TXV - Bulb Loss of harge Low Low Low High High Low Low Scaled oaxial Heat Exchanger Heating Low Low Low Normal/Low High Low Low Scaled oaxial Heat Exchanger ooling High High High Normal/Low Low Low Low estricted Filter Drier heck temperature difference (delta T) across filter drier. 7/6/10 39

40 L SEIES INSTALLATION MANUAL Heat of Extraction/ejection Data Model gpm Heat of Extraction (HE) Heat of ejection (H) 30 F 50 F 70 F 90 F 30 F 50 F 70 F 90 F 110 F Data provided in MBtu/h 6/10/13 eference alculations Heating alculations: HE LWT = EWT - gpm x 500 ooling alculations: H LWT = EWT + gpm x 500 LAT = EAT + H cfm x 1.08 LAT(DB) = EAT(DB) - S cfm x 1.08 TH = H + HW L = T - S S S/T = T Legend ABBEVIATIONS AND DEFINITIONS: cfm = airflow, cubic feet/minute EWT = entering water temperature, Fahrenheit gpm = water flow in gallons/minute WPD = water pressure drop, psi and feet of water EAT = entering air temperature, Fahrenheit (dry bulb/wet bulb) H = air heating capacity, MBtu/h T = total cooling capacity, MBtu/h S = sensible cooling capacity, MBtu/h KW = total power unit input, kilowatts H = total heat of rejection, MBtu/h HE = total heat of extraction, MBtu/h HW = hot water generator capacity, MBtu/h EE = Energy Efficient atio = Btu output/watt input OP = oefficient of Performance = Btu output/btu input LWT = leaving water temperature, F LAT = leaving air temperature, F TH = total heating capacity, MBtu/h L = latent cooling capacity, MBtu/h S/T = sensible to total cooling ratio 40

41 L SEIES INSTALLATION MANUAL DEALE: PHONE #: DATE: POBLEM: MODEL #: SEIAL #: Startup/Troubleshooting Form OOLIN YLE ANALYSIS PSI = SAT F F Unit Amp Draw: Loop: Open F AI OIL F Line Voltage: losed SUTION EXPANSION VALVE OAX SOUE EVESIN VALVE OMPESSO DISHAE F LIQUID LINE F PSI BINE IN F PSI BINE OUT F PSI = SAT F Superheat Subcooling Heat of Extraction/ejection = PM x 500 (485 for water/antifreeze) x T Note: DO NOT hook up pressure gauges unless there appears to be a performance problem. HEATIN YLE ANALYSIS PSI = SAT F F Unit Amp Draw: Loop: Open F AI OIL F Line Voltage: losed SUTION EXPANSION VALVE OAX SOUE EVESIN VALVE OMPESSO DISHAE F LIQUID LINE F F F PSI = SAT F PSI BINE IN PSI BINE OUT Superheat Subcooling 41

42 L SEIES INSTALLATION MANUAL Preventive Maintenance Water oil Maintenance 1. Keep all air out of the water. An open loop system should be checked to ensure that the well head is not allowing air to infiltrate the water line. Lines should always be airtight. 2. Keep the system under pressure at all times. It is recommended in open loop systems that the water control valve be placed in the discharge line to prevent loss of pressure during off cycles. losed loop systems must have positive static pressure. Note: On open loop systems, if the installation is in an area with a known high mineral content (125 PPM or greater) in the water, it is best to establish with the owner a periodic maintenance schedule so the coil can be checked regularly. Should periodic coil cleaning be necessary, use standard coil cleaning procedures which are compatible with either the cupronickel or copper water lines. enerally, the more water flowing through the unit the less chance for scaling. Other Maintenance Filters Filters must be clean to obtain maximum performance. They should be inspected monthly under normal operating conditions and be replaced when necessary. Units should never be operated without a filter. The condensate drain can pick up lint and dirt, especially with dirty filters. Inspect twice a year to avoid the possibility of overflow. Blower Motors Blower motors are equipped with sealed ball bearings and require no periodic oiling. Air oil The air coil must be cleaned to obtain maximum performance. heck once a year under normal operating conditions and, if dirty, brush or vacuum (with a brush attachment) clean. are must be taken not to damage the aluminum fins while cleaning. AUTION: Fin edges are sharp. ondensate Drain In areas where airborne bacteria produce a slime in the drain pan, it may be necessary to treat chemically to minimize the problem. eplacement Procedures Obtaining Parts When ordering service or replacement parts, refer to the model number and serial number of the unit as stamped on the serial plate attached to the unit. If replacement parts are required, mention the date of installation of the unit and the date of failure, along with an explanation of the malfunctions and a description of the replacement parts required. In-Warranty Material eturn Material may not be returned except by permission of authorized warranty personnel. ontact your local distributor for warranty return authorization and assistance. 42

43 L SEIES INSTALLATION MANUAL Service Parts List Low Sill onsoles ompressor 115/60/1 34P P N/A N/A ompressor /60/1 34P P P P ompressor ompressor 265/60/1 34P P P P un apacitor 115/60/1 16P002D36 16P002D36 N/A N/A un apacitor /60/1 16P002D17 16P002D18 16P002D19 16P002D19 un apacitor 265/60/1 16P002D27 16P002D27 16P002D30 16P002D30 Sound Jacket 92P504A01 PS Motor & Blower EM Motor & Blower PS Motor 115/60/1 14P N/A PS Motor /60/1 14P N/A PS Motor 265/60/1 14P N/A Blower Housing 53P N/A Blower apacitor /60/1 16P002D10 N/A Blower apacitor 265/60/1 16P002D03 N/A EM Motor /265/60/1 N/A 14P EM Motor Module /265/60/1 N/A 17P Blower Housing N/A 53P514B01 Air oil 61P P efrigeration omponents ontrols Transformer oax 62P P P TXV 33P P eversing Valve 33P Filter Drier 36P500B01 M Board 17P AB 17P ontactor 13P004A03 Transformer /60/1 15P Transformer 265/60/1 15P Sensors & Safeties High Pressure Switch Low Pressure Switch 35P506B02 35P506B01 Part numbers subject to change 9/01/15 43

44 L SEIES INSTALLATION MANUAL Notes 44

45 L SEIES INSTALLATION MANUAL evision uide Pages: Description: Date: By: Misc. emoved FX10 ontrol Option, Added Aurora ontrols, Updated Wiring Schematics 01 Mar 2017 MA 23-24, 43 Updated Wiring Schematic, Updated Service Parts Table 11 May 2015 MA All Updated with All-Aluminum Air oils 06 Mar 2014 DS All Added 15 & 18 Models 09 Oct 2013 DS 45 Added evision Table 09 Oct 2013 DS 45

46 P.O. Box 1592, York, Pennsylvania USA Subject to change without notice. Printed in USA opyright by Johnson ontrols ALL IHTS ESEVED Form NOM1 (317) Issue Date: March 29, 2017 Supersedes: NOM9 (314)