Versatec Base Series Installation Manual

Transcription

1 ommercial 0.5 to 6 Ton eothermal/water Source Heat Pump Installation Information Water Piping onnections Electrical Startup Procedures Troubleshooting Versatec Base Series Installation Manual Preventive Maintenance IM20AU /2

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3 Table of ontents Model Nomenclature eneral Installation Information Dimensional Data Installing Horizontal Units Hanger Bracket Locations Duct System and Water Piping Water Quality ondensate Drain System leaning and Flushing Open Loop round Water Systems Freeze Detection Electrical onnections Electrical Data Blower Performance Data Speed EM onstant Torque Motors Wiring Schematics ontrols - Aurora Base ontrol ontrols - FX0 (optional) Unit Startup Operating Parameters and Operating Limits Pressure Drop ompressor and Thermistor Resistance Refrigerant ircuit uideline Heat of Extraction/Rejection Data Reference alculations and Legend Troubleshooting Startup/Troubleshooting Form Preventive Maintenance Replacement Procedures Service Parts Revision uide

4 Model Nomenclature -2 UB V T 8 L A 4 N 5 A 6 N A SS 2 A Model Type UB = Versatec Base abinet onfiguration V = Vertical H = Horizontal Unit apacity 006, 009, 02, 05, 08, 024, 00, 06, 042, 048, 060, 070 Discharge Air onfiguration T = Top (Vertical) E = End (Horizontal) S = Side (Horizontal) Return Air onfiguration L = Left R = Right Voltage 0 = /60/ 2 = /60/ (006-06) = /60/ ( ) 4 = 460/60/ ( ) 5 = 575/60/ ( ) 9 = 5/60/ (006-02) Future Option 0 = None Blower Option 0 = PS = Variable Speed EM (05-070) 4 = 5-Speed EM (05-070) Water oil Option = opper D = Insulated opper Sound Kit Option A = None B = Sound Kit (Not Available on H006-02) Vintage A = PS & 5-Speed EM Blower B = Variable Speed EM Blower Non-Standard Option Details SS = Standard Option Drain Pan Option 0 = omposite, No Secondary onnection = omposite, Secondary onnection 2 = Stainless Steel, No Secondary onnection = Stainless Steel, Secondary onnection Air oil Option = Standard 2 = FormiShield TM Filter Option A = MERV 4 B = MERV abinet Option 0 = Unpainted abinet, Filter Rail 2 = Unpainted abinet, 4-sided Filter Rack Electrical Option N = No Phase uard, No Disconnect D = No Phase uard, Disconnect P = Phase uard, No Disconnect B = Phase uard, Disconnect ontrols Option A = Aurora TM Base ontrol (AB) 4 = FX0 Std. No ommunication 5 = FX0 w/open N2 om ard 6 = FX0 w/lonworks om ard 7 = FX0 w/bacnet om ard Water ontrol Option N = None R = Water Flow Regulator (05-070) V = 2-Way Valve (05-070) B = 2-Way Valve w/water Flow Regulator (05-070) Rev.: 2 Nov 202D NOTES: Phase guard only available on /60/, 460/60/, and 575/60/ 50 VA transformer with Aurora Base ontrol and 75 VA transformer with FX0 control All Versatec Base Series product is safety listed under UL995 thru ETL and performance listed with AHRI in accordance with standard

5 eneral Installation Information Safety onsiderations WARNIN: 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. Horizontal units may be moved and stored per the information on the packaging. Do not stack more than three units in total height. Vertical units may be stored one upon another to a maximum height of two units. Do not attempt to move units while stacked. 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. Unit Location Locate the unit in an indoor area that allows for easy removal of the filter and access panels. Location should have enough space for service personnel to perform maintenance or repair. Provide sufficient room to make water, electrical and duct connection(s). If the unit is located in a confined space, such as a closet, provisions must be made for return air to freely enter the space by means of a louvered door, etc. Any access panel screws that would be difficult to remove after the unit is installed should be removed prior to setting the unit. On horizontal units, allow adequate room below the unit for a condensate drain trap and do not locate the unit above supply piping. are should be taken when units are located in unconditioned spaces to prevent damage from frozen water lines and excessive heat that could damage electrical components. Installing Vertical Units Vertical units are available in left or right air return configurations. Top flow vertical units should be mounted level on a vibration absorbing pad slightly larger than the base to provide isolation between the unit and the floor. 2 in. PEX Foam Vertical Unit Mounting 5

6 Vertical Dimensional Data Standard filter rails for open return applications Field installed duct flange Deluxe filter rack for ductable return applications A N R S A N Air coil Q Q AESS PANEL B P AIR OIL SIDE AIR OIL SIDE P B 2' (6 cm) Service Access F FRONT Top View - Right Return M M FRONT Top View - Left Return F 2' (6 cm) Service Access Isometric View - Left Return U T W Air coil Air coil AESS PANEL AESS PANEL V H E D.6 in (4. cm) ondensate /4 in PV glue socket.6 in (4. cm) Water onnections* L J Power supply in (25.4 mm) knockout Low voltage /2" (2.7 mm) knockout L K ondensate /4 in PV glue socket.6 in (4. cm) 8 7 Water onnections* 5 2 E H D.6 in (4. cm) J L 6 8 AESS PANEL 8 7 K L Front View - Right Return Front View - Left Return Right View - Right Return (J & L) Left View - Left Return (K & L) NOTE: * Water connections protrude approximately.5 in. from cabinet. 6

7 Vertical Dimensional Data cont. Vertical Models Vertical Models Electrical Knockouts Water onnections Overall abinet J K L Loop A B D E H /2 in. cond /2 in. cond in. cond M Width Depth Height* In Out ondensate Water FPT Low Voltage Low Voltage Power Supply ondensate is /4 in. PV female glue socket and is switchable from side to front. * Discharge flange is field installed and extends in. (25.4 mm) from top of cabinet. ** Vertical units shipped with standard 2 in. (field adjustable to in.) open application filter rail extending 2.2 in. from the unit and is not suitable for duct connection. For ductable return connection applications, order the 2 in. (field adjustable to in.) duct collar/ filter rack which extends to.25 in. from the unit and is suitable for duct connections. Filter Rack Width in /2 in cm mm in /4 in cm mm in /4 in cm mm in /4 in cm mm in /4 in cm mm in in cm mm in in cm mm Discharge onnection duct flange installed (±0.0 in) **Return onnection using deluxe filter rack (±0.0 in) N P Q R S T U V W Supply Width Supply Depth Return Depth Return Height in cm in cm in cm in cm in cm in cm in cm /26/2 Vertical Disconnect When using disconnect, do not use dimension L from the standard vertical dimensional data. Use dimension LL from the vertical disconnect dimensional data. Vertical Models LL [40.] [47.8] [8.9] [5.] [6.] [6.] Dimensions in inches [cm] * Models Externally Mounted Disconnect Disconnect Location Power Supply LL Disconnect Located on this Side for a Right Return Alternative Power Supply Vertical Shown in Left Return onfiguration 7

8 Horizontal Dimensional Data Right Return Standard filter rails in knockout /2 in knockout Front K.7.7 P AP Standard filter rails Front Left Return J MP E AP MP A Right Return Air Front View D AP MP.7.7 ondensate "X" PV size End Discharge Side Discharge 2' (6 cm) Service Access E 2 P AP MP /2 in knockout in knockout Side Discharge ondensate "X" PV size End Discharge Deluxe filter rack option shown D Left Return Air Front View Deluxe filter rack option shown 2. N P P N 2. J K 2' (6 cm) Service Access H FILTER RAK AIR OIL SIDE BLOWER L OUTLET Legend M AP = Alternate Service Panel M L BP P = Blower Service Panel = ontrol Access Panel BLOWER OUTLET 2. BP MP = ompressor Service Panel A BP A 2. Right Return End Discharge Left Return End Discharge FILTER RAK AIR OIL SIDE H P N.5.5 N P BP L M BLOWER OUTLET AP MP K /2 in knockout J in knockout Front Front " knockout J /2 in knockout K AP MP BLOWER OUTLET M L BP Right Return Side Discharge Left Return Side Discharge Front Air oil Q S T T S Q FILTER RAK ONNETION R Deluxe filter rack option (shown) R FILTER RAK ONNETION Air oil Front Water onnections* B Right Return Side View B Left Return Side View Water onnections* NOTE: * Water connections protrude approximately.5 in. from cabinet. 8

9 Horizontal Dimensional Data cont. Horizontal Models ** Horizontal Models Water onnections Electrical Knockouts Overall abinet 2 J K Loop A B D E H /2 in. cond in. cond Width Depth Height* In Out ondensate Water FPT Low Voltage Power Supply in /2 in cm mm in /4 in cm mm in /4 in cm mm in /4 in cm mm in /4 in cm mm in in cm mm in in cm mm Discharge onnection duct flange installed (±0.0 in) Return onnection using deluxe filter rack option (±0.0 in) L M N P Q R S T X Supply Width Supply Depth Return Depth Return Height PV Size ** in /2 in. cm in /4 in. cm in /4 in. cm in /4 in. cm in /4 in. cm in /4 in. cm in /4 in. cm Horizontal units shipped with standard 2 in. (field adjustable to in.) open application filter rail extending 2.2 in. from the unit and 09/26/2 is not suitable for duct connection. For ductable return connection applications, order the 2 in. (field adjustable to in.) duct collar/ filter rack which extends to.25 in. from the unit and is suitable for duct connections. ** UBH offers a lifted drain pan that allows the trap to be installed without additional ceiling height required. Horizontal Disconnect When using disconnect, do not use dimension K from the standard horizontal dimensional data. Use dimension KK from the horizontal disconnect dimensional data. Horizontal Models KK [20.8] [20.8] [2.4] [2.4] [28.4] [25.9] Dimensions in inches [cm] * Models Externally Mounted Disconnect Disconnect Located on this Side for a Left Return Disconnect Location KK Power Supply Horizontal Shown In Right Return onfiguration 9

10 Installing Horizontal Units Installing Horizontal Units Horizontal units are available with side or end discharge and may be easily field converted by flipping the blower discharge panel. Horizontal units are normally suspended from a ceiling by four /8 in. diameter threaded rods. The rods are usually attached to the unit by hanger bracket kits furnished with each unit. Lay out the threaded rods per the dimensions below. Assemble the hangers to the unit as shown. Securely tighten the brackets to the unit using the weld nuts located on the underside of the bottom panel. When attaching the hanger rods to the bracket, a double nut is required since vibration could loosen a single nut. NOTE: The unit should be pitched approximately /4 in. towards the drain in both directions to facilitate the removal of condensate. Use only the bolts provided in the kit to attach hanger brackets. The use of longer bolts could damage internal parts. Some applications require the installation of horizontal units on an attic floor. In this case, the unit should be set in a full size secondary drain pan on top of a vibration absorbing pad. The secondary drain pan prevents possible condensate overflow or water leakage damage to the ceiling. The secondary drain pan is usually placed on a plywood base isolated from the ceiling joists by additional layers of vibration absorbing material. Insulate supply plenum and use at least one 90 elbow and flexible duct collar to reduce noise. AUTION: Do not use rods smaller than /8 in. diameter since they may not be strong enough to support the unit. The rods must be securely anchored to the ceiling. Horizontal Unit Mounting 0

11 Hanger Bracket Locations Right Left B D E ompressor Section Air Handler Section F E D ompressor Section Air Handler Section F A /8 Threaded Rod (not supplied) Vibration Isolator Washer Bolt and Lockwasher Hex Nuts (not supplied) Hanger Dimensions Model Hanger Kit Part Number Unit Hanger Dimensions A B in. 99S500A04 cm in S500A04 cm in S500A04 cm in S500A04 cm in S500A04 cm in S500A04 cm in S500A04 cm /26/2 Weight Distribution Model Vertical Shipping Weight Horizontal Shipping Weight Horizontal Weight Distribution Front Back D E F lb kg lb kg lb kg lb kg lb kg lb kg lb kg lb kg lb kg /0/2

12 Duct System An air outlet collar is provided on vertical top flow units and all horizontal units to facilitate a duct connection. A flexible connector is recommended for discharge and return air duct connections on metal duct systems. Uninsulated duct should be insulated with a minimum of -inch duct insulation. Application of the unit to uninsulated ductwork in an unconditioned space is not recommended as the unit s performance will be adversely affected. If the unit is connected to existing ductwork, check the duct system to ensure that it has the capacity to accommodate the air required for the unit application. If the duct is too small, as in the replacement of heating only systems, larger ductwork should be installed. All existing ductwork should be checked for leaks and repaired if necessary. The duct system should be sized to handle the design airflow quietly and efficiently. To maximize sound attenuation of the unit blower, the supply and return plenums should include an internal duct liner of fiberglass or constructed of ductboard for the first few feet. On systems employing a sheet metal duct system, canvas connectors should be used between the unit and the ductwork. If air noise or excessive airflow is a problem, the blower speed can be changed. 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. 2

13 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. Hot water generator 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. Failure to adhere to the guidelines in the water quality table could result in loss of warranty. 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 90/0 upronickel 6 Stainless Steel ph Acidity/Alkalinity Scaling alcium and (Total Hardness) (Total Hardness) (Total Hardness) Magnesium arbonate less than 50 ppm less than 50 ppm less than 50 ppm Hydrogen Sulfide Less than 0.5 ppm (rotten egg smell appears at 0.5 ppm) 0-50 ppm Less than ppm Sulfates Less than 25 ppm Less than 25 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 25 ppm Less than 00 ppm arbon Dioxide Less than 50 ppm 0-50 ppm 0-50 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 000 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 ppm, above this Less than ppm, above this Less than ppm, above this Iron Oxide level deposition will occur level deposition will occur level deposition will occur Suspended Solids Erosion Threshold Velocity (Fresh Water) NOTES: rains = ppm divided by 7 mg/l is equivalent to ppm ondensate Drain Less than 0 ppm and filtered for max. of 600 micron size Less than 0 ppm and filtered for max. of 600 micron size Less than 0 ppm and filtered for max. of 600 micron size < 6 ft/sec < 6 ft/sec < 6 ft/sec 2/22/2 On vertical units, the internal condensate drain assembly consists of a drain tube which is connected to the drain pan, a /4 in. PV female adapter and a flexible connecting hose. The female adapter may exit either the front or the side of the cabinet. The adapter should be glued to the field-installed PV condensate piping. On vertical units, a condensate hose is inside all cabinets as a trapping loop; therefore, an external trap is not necessary. Horizontal Drain onnection (omposite Drain Pan) On horizontal units, a PV stub or stainless steel tube is provided for condensate drain piping connection. An external trap is required (see below). If a vent is necessary, an open stand pipe may be applied to a tee in the fieldinstalled condensate piping. NOTE: All units equipped with electronic condensate overflow protection. Unit Pitch for Drain PV coupling Vent (if needed) PV tube stub.5 in..5 in. PV tube stub /8 in. per foot /2'' Pitch NOTE: UBH offers a lifted drain pan that allows the trap to be installed without additional ceiling height required. Drain

14 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 Flushing with Water Shutoff Valve Equipped Systems illustration). The system should be filled at the water make-up connection with all air vents open. After filling, vents should be closed. Flushing with Water Shutoff Valve Equipped Systems Return Runout Supply Runout Rubber Hose Runouts Initially onnected Together Mains The contractor should start the main circulator with the pressure reducing valve makeup open. Vents should be checked in sequence to bleed off any trapped air and to verify circulation through all components of the system. 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 makeup 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. Refill 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. Running the unit for at least 0 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. 4

15 Open Loop round Water Systems Typical open loop piping is shown below. 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. Insure 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..5-2 gpm of flow per ton of cooling capacity is recommended in open loop applications. Due to only minor differences in flow rate from low to high, only one solenoid valve should be used. The valve should be sized for full flow. 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. Open System - roundwater Application Unit Supply Aux. Heat Supply Flexible Duct ollar Rubber Bladder Expansion Tank Drain Solenoid Valve Flow ontrol Valve (on outlet of Solenoid Valve) Water Out Water In Disconnects (IfApplicable) ompressor Line Voltage Low Voltage to Thermostat and Valve P/T Plugs Vibration Absorbing Pad Strainer Boiler Drains For HX Flushing Shut Off Valves Shut Off Valves (to isolate solenoid valve while acid flushing) 5

16 Freeze Detection For Aurora Base ontrol, set SW2-, FP, on the printed circuit board for applications using a closed loop antifreeze solution to 5 F [-9.4 ]. On applications using an open loop/ground water system (or closed loop no antifreeze), set this dip switch to 0 F [-. ], the factory default setting. (Refer to the Dip Switch Field Selection table). For FX0 board, the red wire must be removed from PB2- to change from 0 F [-. ], the factory default setting, to 5 F [-9.4 ]. 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. Power onnection onnect the incoming line voltage wires to L and L2 of the contactor for single-phase unit. onsult the Electrical Data tables for correct fuse sizes. 208 Volt Operation All Versatec Base Series 208/20 units are factory wired for 20 volt operation. For 208 volt operation, the red and blue transformer wires must be switched on terminal strip PS. AUTION: When installing a unit with a variable speed EM blower motor in 460/60/ voltage, a neutral wire is required to allow proper unit operation. Aurora Base ontrol Box FX0 ontrol Box 6

17 Electrical Data PS Motor Model Rated Voltage Voltage Min/Max ompressor M RLA LRA 5/60/ 04/ /60/ 98/ /5 265/60/ 28/ /5 5/60/ 04/ /60/ 98/ /5 265/60/ 28/ /5 5/60/ 04/ /60/ 98/ /5 265/60/ 28/ / /60/ 98/ /60/ 28/ / /60/ 98/ /60/ 28/ / /60/ 98/ /60/ 28/ /60/ 87/ /5 460/60/ 44/ / /60/ 98/ /60/ 28/ /60/ 87/ /60/ 44/ / /60/ 98/ /60/ 28/ /60/ 87/ /60/ 44/ / /60/ 98/ /60/ 87/ /60/ 42/ /5 575/60/ 57/ / /60/ 98/ /60/ 87/ /60/ 42/ /5 575/60/ 57/ / /60/ 98/ /60/ 87/ /60/ 42/ /60/ 57/ / /60/ 98/ /60/ 87/ /60/ 42/ /60/ 57/ /5 HAR circuit breaker in USA only 0/0/2 Blower Motor FLA Total Unit FLA Min irc Amp Max Fuse/ HAR 7

18 Electrical Data cont. Variable Speed EM Motor Model Rated Voltage Voltage Min/Max ompressor M RLA LRA /60/ 98/ /60/ 28/ /60/ 98/ /60/ 28/ /60/ 98/ /60/ 28/ /60/ 87/ /60/ 44/ / /60/ 98/ /60/ 28/ /60/ 87/ /60/ 44/ / /60/ 98/ /60/ 28/ /60/ 87/ /60/ 44/ /60/ 98/ /60/ 87/ /60/ 44/ /60/ 98/ /60/ 87/ /60/ 44/ /60/ 98/ /60/ 87/ /60/ 44/ /60/ 98/ /60/ 87/ /60/ 44/ HAR circuit breaker in USA only 0/0/2 Blower Motor FLA Total Unit FLA Min irc Amp Max Fuse/ HAR AUTION: When installing a unit with an variable speed EM blower motor in 460/60/ voltage, a neutral wire is required to allow proper unit operation. 8

19 Electrical Data cont. 5-Speed EM Motor Model Rated Voltage Voltage Min/Max ompressor M RLA LRA /60/ 98/ /60/ 28/ / /60/ 98/ /60/ 28/ / /60/ 98/ /60/ 28/ /60/ 87/ /60/ 44/ / /60/ 98/ /60/ 28/ /60/ 87/ /60/ 44/ / /60/ 98/ /60/ 28/ /60/ 87/ /60/ 44/ / /60/ 98/ /60/ 87/ /60/ 44/ / /60/ 98/ /60/ 87/ /60/ 44/ /60/ 98/ /60/ 87/ /60/ 44/ /60/ 98/ /60/ 87/ /60/ 44/ HAR circuit breaker in USA only 0/0/2 Blower Motor FLA Total Unit FLA Min irc Amp Max Fuse/ HAR 9

20 Blower Performance Data Standard PS Motor Model Blower Spd Blower Size Motor HP Airflow (cfm) at External Static Pressure (in. wg) H MH x 8 /0 ML* L H MH x 8 /0 ML* L H MH x 8 /0 ML* L H M 9 x 7 / L H M 9 x 7 / L H M 9 x 7 / L H M 9 x 7 / L H M 9 x 7 / L H M 0x0 / L H M 0 x 0 / L H M x L H M x L /0/2 Factory settings are in Bold Airflow values are with dry coil and standard filter For wet coil performance first calculate the face velocity of the air coil (Face Velocity [fpm] = Airflow [cfm] / Face Area [sq ft]). Then for velocities of 200 fpm reduce the static capability by 0.0 in. wg, 00 fpm by 0.08 in. wg, 400 fpm by 0.2 in. wg. and 500 fpm by 0.6 in. wg. * Setting for 265V operation. Setting Blower Speed - PS AUTION: Disconnect all power before performing this operation. FAN SPEED WIRE HIH MEDIUM LOW PS BLOWER MOTOR BODY 20

21 Blower Performance Data cont. Variable Speed EM Motor Model Max ESP Blower Size Motor hp x 7 /2 Air Flow Dip Switch Settings L M x 7 / L M H x 7 / L M H x 7 / L M H x 7 / L M H x 0 / L M H x 0 / L M H x L M H x L M H Factory settings are at recommended L-M-H DIP switch locations. 09/26/2 Shaded regions are recommended for best performance. It is acceptable to operate outside of this area as long as the WSHP operates within the guidelines of the Operating Limits table and orrection Factor tables. Lowest and Highest DIP switch settings are assumed to be L and H respectively. FM is controlled within ±5% up to the maximum esp. Max esp includes allowance for wet coil and standard filter 700 H 800 Setting Blower Speed - Variable Speed EM Variable speed EM blower motors have 2 selectable speeds and are factory set for optimum performance. To change speeds on an FX0 control, use the Medium User Interface (MUI) to enter the MAINT menu to adjust the 2 soft switches. When applicable, the speed settings may also be adjusted through the Building Automation System (BAS). AUTION: Disconnect all power before performing this operation. 2

22 Blower Performance Data cont. Setting Blower Speed - Variable Speed EM The AB board s Yellow onfig LED will flash the current variable speed EM blower speed selections for low, med, and high continuously with a short pause in between. The speeds can also be confirmed with the AID Tool under the Setup/EM Setup screen. The variable speed EM blower motor speeds can be field adjusted with or without using an AID Tool. Variable Speed EM Setup with an AID Tool cont. EM SPEED INFO LOW SPEED: MED SPEED: 5 HIH SPEED: 7 Selecting YES will enter variable speed EM speed setup, while selecting NO will return to the previous screen. Variable Speed EM Setup without an AID Tool The blower speeds for Low ( only), Med (Y), and High (Y2/Aux) can be adjusted directly at the Aurora AB board which utilizes the push button (SW) on the AB board. This procedure is outlined in the Variable Speed EM onfiguration Mode portion of the Aurora Base ontrol System section. Variable Speed EM Setup with an AID Tool A much easier method utilizes the AID Tool to change the airflow using the procedure below. First navigate to the Setup screen and then select EM Setup. This screen displays the current variable speed EM settings. It allows the technician to enter the setup screens to change the variable speed EM settings. hange the highlighted item using the and buttons and then press the button to select the item. WANT TO HANE? YES OPTION NO ENTER Variable Speed EM Speed Setup - These screens allow the technician to select the low, medium, and high blower speed for the variable speed EM blower motor. hange the highlighted item using the and buttons. Press the button to select the speed. EM SPEED INFO 2 < LOW EM SPEED INFO 2 LOW 4 5 < MED EM SPEED INFO 2 LOW 4 5 MED < HIH OPTION ENTER OPTION ENTER OPTION ENTER After the high speed setting is selected the AID Tool will automatically transfer back to the EM Setup screen. 22

23 Blower Performance Data cont. 5-Speed EM Motor Model Motor Spd Motor Tap Blower Size Motor HP Factory settings are in Bold Airflow values are with dry coil and standard in. filter. Airflow (cfm) at External Static Pressure (in. wg) High 5 Med High Med 9 x 7 / Med Low Low High Med High Med 9 x 7 / Med Low Low High Med High Med 9 x 7 / Med Low Low High Med High Med 9 x 7 / Med Low Low High Med High Med 9 x 7 / Med Low Low High Med High Med x Med Low Low High Med High Med x Med Low Low High Med High Med x Med Low Low High Med High Med x Med Low Low Speed EM Motor onnections 09/26/2 - Black L - Orange - reen High Voltage onnections /6 in. L N N - Brown - Blue Y - Red Low Voltage onnections /4 in. AUX - ray 2

24 5-Speed EM onstant Torque Motors The 5-speed EM is a onstant Torque EM motor and delivers air flow similar to a PS but operates as efficiently as an variable speed EM Motor. Because it s an EM Motor, the 5-speed EM can ramp slowly up or down like the variable speed EM Motor. There are 5 possible speed taps available on the 5-speed EM motor with # being the lowest airflow and #5 being the highest airflow. These speed selections are preset at the time of manufacture and are easily changed in the field if necessary. 5-Speed EM Benefits: - High efficiency - Soft start - 5 speeds with up to 4 speeds on-line - Built in logic allows air flow to change with, Y, Y2 and W signals - Super efficient low airflow continuous blower setting () If more than one tap are energized at the same time, built in logic gives precedence to the highest tap number and allows air flow to change with, Y, Y2 and W signals. Each of those 5 speeds has a specific Torque value programmed into the motor for each speed selection. As static pressure increases, airflow decreases resulting in less torque on the rotor. The motor responds only to changes in torque and adjusts its speed accordingly. The 5-speed EM motor is powered by line voltage but the motor speed is energized by 24VA. Power onnection - /6 in. quick connects - Line (orange wire) to L, round (green wire) to, Line 2 (for 208V-20V units) to N (brown wire). Signal onnection - /4 in. quick connects - ommon to, 24VA to Taps #-5. Applying 24VA power between any of the motor taps -5 (/4 in. quick connects) and common will signal the motor to run and regulate torque at the programmed level. The tap input voltage must be in the range 2-VA. The 5-speed EM will have less variation over the operating static pressure range versus a PS motor as well as a significant watts reduction due to the high motor efficiency. Thermal Protection - Motor is electronically protected. Locked Rotor Amps - If motor speed decreases below a programmed stall speed, the motor will shut down and after a delay period, the control will attempt to restart the motor. The 5-speed EM speed tap selections are as follows: The blue wire should be placed on the speed tap desired for the () continuous blower setting factory wired to Tap. The red wire should be placed on the speed tap desired during compressor operation (Y signal) factory wired to Tap or 4. The gray wire is not factory wired to the motor and is tied to the wire harness. It is field connected and can be used with ht/2cl thermostats or IntelliZone to deliver the required air flow for the Y2 signal. The tan wire should be placed on the speed tap desired for auxiliary heat (W signal) factory wired to Tap 5. 24

25 2 VERSATE BASE SERIES INSTALLATION MANUAL Wiring Schematics Aurora Base ontrol /60/ PS ompressor rn P PS Blower Motor H M L Brn Wht ap Airflow Settings White S Blue R ap Black Red Tan T2 T L2 L Note reen (9) Black (95) round Neutral Disconnect L L Unit Power Supply /60/ Black RB Black Red (97) L2 L2 Note 2 Red 208V L L Blue 20V 265V Black Transformer 24V Yellow Black/White Note Isolation Valve 2 Red (5) reen (50) White (52) Note Red (5) P2 P Accessory Relay 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 DH W Y2 Y O/B R LO P9 R F F HI LO ES LS ALM AL A OM A NO A N LO R O/B Y Y2 W DH R F K5 K6 reen RS485 NET Aurora Timing Events Event Normal Mode Test Mode Random Start Delay 5 to 80 seconds second ompressor On Delay 5 seconds < second ompressor Minimum On Time 2 minutes 5 seconds ompressor Short ycle Delay 4 minutes 5 seconds Blower Off Delay 0 seconds 2 seconds Fault Recognition Delay High Pressure Less than second Less than second Start-Up Bypass Low Pressure 2 minutes 0 seconds Fault Recognition Delay Low Pressure 0 seconds 0 seconds Start-Up Bypass Low Water/Air oil Limit 2 minutes 0 seconds Fault Recognition Delay Low Water/Air oil Limit 0 seconds 0 seconds Fault Recognition Delay ondensate Overflow 0 seconds 0 seconds Thermostat all Recognition Time 2 seconds 2 seconds Auxiliary Heat Staging Delay 5 minutes 20 seconds Emergency Heat Staging Delay 2 minutes 7.5 seconds Water Valve Slow Open Delay 90 seconds 90 seconds Reheat Delay 0 seconds 0 seconds P8 JW2 RB White (2) RS485 NET K4 Black () LED5 R A- B+ P7 Violet (4) K2 Black (5) K RS485 EXP P5 Aurora Base ontrol (AB) LED4 24V P2 REV REV FP FP FP2 FP2 LPS LPS HPSHPS P4 SW R A- B+ P6 N/A O EH EH2 P Brown (2) ondensate K RV Orange (0) RV Orange (02) FD Yellow T 470 Resistor Yellow Status Y 470 Fault R PWM P Off On FP 5 F/0 F FP2 5 F/0 F 2 RV B/O Acc Dip 4 Acc Dip 2 5 Dual/Single 6 L Pulse/ontinuous 7 Reheat/Normal 8 SW2 LP Blue (07) Blue (08) HP Black (09) Black (0) onfig Y R F FM Black/White Aurora LED Flash odes Slow Flash second on and second off Fast Flash 00 milliseconds on and 00 milliseconds off Flash ode 00 milliseconds on and 400 milliseconds off with a 2 second pause before repeating Random Start Delay Status LED (LED, reen) Fast Flash onfiguration LED (LED2, Yellow) Fast Flash Fault LED (LED, Red) Fast Flash Status LED (LED, reen) onfiguration LED (LED2, Yellow) Fault LED (LED, Red) 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 Test Mode Slow Flash EM onfigure Mode Fast Flash High Pressure Lockout Flash ode 2 Lockout Active Fast Flash Reset onfigure Mode Off Low Pressure Lockout Flash ode Dehumidification Mode Flash ode 2 Low Air oil Limit Lockout - FP2 Flash ode 4 Reserved Flash ode Low Water oil Limit Lockout - FP Flash ode 5 Reserved Flash ode 4 Reserved Flash ode 6 Load Shed Flash ode 5 ondensate Overflow Lockout Flash ode 7 ESD Flash ode 6 Over/Under Voltage Shutdown Flash ode 8 Reserved Flash ode 7 Reserved Flash ode 9 Reserved Flash ode 0 Air/Water oil Limit Sensor Error Flash ode Yellow Optional, factory installed unit mounted disconnect. 2 Swap blue and red leads for 208V operation. Optional, factory installed internal isolation valve. L 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 Relay ontacts N.O., N.. apacitor Fuse ompressor ontactor O ondensate Overflow Sensor ES Emergency Shutdown HP High Pressure Switch LP Low Pressure Switch FD Freeze Detection Sensor F Fuse Notes: Legend T Y R Thermistor Relay oil Switch - ondensate Overflow Switch - High pressure Switch - Low pressure Polarized connector SW Push button SW2 DIP package 8 position RB Blower Relay RV Reversing Valve oil Light Emitting Diode - reen Light Emitting Diode - Yellow Light Emitting Diode - Red 97P87-0 /08/0 25

26 T 2 VERSATE BASE SERIES INSTALLATION MANUAL Wiring Schematics cont. Aurora Base ontrol 460/60/ Variable Speed EM ompressor L T Red T L2 T2 T2 Yellow T Note Black Phase uard Orange Monitor T (PM) Note L L2 L Brown PB reen (9) N ray (94) L round Neutral Disconnect Unit Power Supply 460/60/ w/neutral Black (7) Black (54) L Black (95) L L White (8) Red (9) Blue (55) L2 Yellow (96) L2 L2 Red (56) L Red (97) L L Black (54) Blue (55) Red (56) Blue 460V Black Orange Brown reen Note 4 Transformer PM Y-OUT Y Yellow 24V Black/White P Yellow (9) Black/White (92) Variable Speed EM Blower Motor Resistor R PWM FM P2 Note 2 Isolation Valve RV RV FD LP HP 2 Red (5) reen (50) White (52) Red (5) Note 2 P2 P R ES LS ALM AL LO O/B Y2 W DH DH W Y2 Y O/B R LO P9 R F F 2 HI A OM A NO A N R Y Accessory Relay 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 F K5 K6 reen RS485 NET Aurora Timing Events Event Normal Mode Test Mode Random Start Delay 5 to 80 seconds second ompressor On Delay 5 seconds < second ompressor Minimum On Time 2 minutes 5 seconds ompressor Short ycle Delay 4 minutes 5 seconds Blower Off Delay 0 seconds 2 seconds Fault Recognition Delay High Pressure Less than second Less than second Start-Up Bypass Low Pressure Fault Recognition Delay Low Pressure Start-Up Bypass Low Water/Air oil Limit Fault Recognition Delay Low Water/Air oil Limit Fault Recognition Delay ondensate Overflow Thermostat all Recognition Time Auxiliary Heat Staging Delay Emergency Heat Staging Delay P8 2 minutes 0 seconds 0 seconds 0 seconds 2 minutes 0 seconds 0 seconds 0 seconds 0 seconds 0 seconds 2 seconds 2 seconds 5 minutes 20 seconds 2 minutes 7.5 seconds Water Valve Slow Open Delay 90 seconds 90 seconds Reheat Delay 0 seconds 0 seconds JW2 RS485 NET K4 R A- B+ LED5 P7 Violet (4) K2 Black (5) K 2 LO 2 RS485 EXP P5 Aurora Base ontrol (AB) R A- B+ LED4 P6 N/A O 24V Brown (2) ondensate P2 EH REV REV FP FP FP2 FP2 LPS LPS HPSHPS K Orange (0) SW Orange (02) EH2 Yellow P Yellow Status Y Blue (07) Fault R P4 FP 5 F/0 F FP2 5 F/0 F RV B/O Acc Dip Acc Dip 2 Dual/Single L Pulse/ontinuous Reheat/Normal Aurora LED Flash odes Slow Flash second on and second off Fast Flash 00 milliseconds on and 00 milliseconds off Flash ode 00 milliseconds on and 400 milliseconds off with a 2 second pause before repeating Random Start Delay Status LED (LED, reen) Fast Flash onfiguration LED (LED2, Yellow) Fast Flash Fault LED (LED, Red) Fast Flash Status LED (LED, reen) onfiguration LED (LED2, Yellow) Fault LED (LED, Red) 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 Test Mode Slow Flash EM onfigure Mode Fast Flash High Pressure Lockout Flash ode 2 Lockout Active Fast Flash Reset onfigure Mode Off Low Pressure Lockout Flash ode Dehumidification Mode Flash ode 2 Low Air oil Limit Lockout - FP2 Flash ode 4 Reserved Flash ode Low Water oil Limit Lockout - FP Flash ode 5 Reserved Flash ode 4 Reserved Flash ode 6 Load Shed Flash ode 5 ondensate Overflow Lockout Flash ode 7 ESD Flash ode 6 Over/Under Voltage Shutdown Flash ode 8 Reserved Flash ode 7 Reserved Flash ode 9 Reserved Flash ode 0 Air/Water oil Limit Sensor Error Flash ode Blue (08) Black (09) onfig Y Black (0) Off PWM FM P SW2 R F On Black/White Yellow Violet (42) Blue (24) Yellow (25) reen/yellow (28) Optional, factory installed unit mounted disconnect. 2 Optional, factory installed internal isolation valve. Optional, factory installed phase guard. 4 Optional, factory installed phase guard. The yellow transformer wire shall be connected directly to the PU board, if this option is not installed. L 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 Relay ontacts N.O., N.. apacitor Fuse ompressor ontactor O ondensate Overflow Sensor ES Emergency Shutdown HP High Pressure Switch LP Low Pressure Switch FD Freeze Detection Sensor F Fuse Notes: Legend T Y R Thermistor Relay oil Switch - ondensate Overflow Switch - High pressure Switch - Low pressure Polarized connector SW Push button SW2 DIP package 8 position RB Blower Relay RV Reversing Valve oil PM Phase uard Monitor RH Reheat Valve oil Light Emitting Diode - reen Light Emitting Diode - Yellow Light Emitting Diode - Red 97P /08/0 26

27 L T 2 VERSATE BASE SERIES INSTALLATION MANUAL Wiring Schematics cont. Aurora Base ontrol 460/60/ 5-Speed EM T T Note 4 Red T2 Black Phase uard Monitor (PM) L L2 L L T Yellow T2 L2 L T Unit Power Supply 460/60/ Black (7) White (8) Red (9) Note reen (9) round Neutral Disconnect Black (95) L L Yellow (96) L2 L2 Red (97) L L reen Note 5 Blue 460V Black Brown Orange N 5-Speed EM Blower Motor PM Y-OUT Y Yellow Transformer 24V Black/White Note 5 Yellow (9) Black/White (92) ray (0) Tan () Note 6 Red (2) Blue () RV Resistor FD LP HP Black (5) RV Note 2 Isolation Valve 2 Red (5) reen (50) White (52) Red (5) Note 2 P2 P R ES LS ALM AL LO O/B Y2 W DH DH W Y2 Y O/B R LO P9 R F F 2 HI A OM A NO A N R Y F K5 K6 LED4 RS485 NET P8 JW2 LED5 RS485 NET K4 R A- B+ P7 Violet (4) K2 Black (5) K 2 LO 2 RS485 EXP P5 Aurora Base ontrol (AB) R A- B+ P6 N/A O EH REV REV FP FP FP2 FP2 LPS LPS HPS HPS K Orange (0) SW Orange (02) EH2 Yellow P Yellow Status Y Blue (07) Fault R P4 FP 5 F/0 F FP2 5 F/0 F RV B/O Acc Dip Acc Dip 2 Dual/Single L Pulse/ontinuous Reheat/Normal Blue (08) Black (09) onfig Y Black (0) Off PWM FM P SW2 R F On Black/White Yellow 5-Speed EM Low Voltage onnections Model TAP- TAP-2 TAP- TAP-4 TAP-5 05 Blue Red ray 08 Blue Red ray 02 Blue Red ray 024 Blue Red ray 00 Blue Red ray 06 Blue Red ray 04 Blue Red ray 042 Blue Red ray 048 Blue Red ray 060 Blue Red ray 070 Blue Red ray Notes: - Optional, factory installed unit mounted disconnect. 2 - Optional, factory installed internal isolation valve. - Optional, factory installed phase guard. 4 - Optional, factory installed phase guard. The yellow transformer wire shall be connected directly to the PU board, if this option is not installed. 5 - Refer to the 5-Speed EM Low Voltage onnection Table. 6 - Wire is provided with the unit but not connected to the 5-Speed EM. Legend Accessory Relay 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 Random Start Delay 5 to 80 seconds second ompressor On Delay 5 seconds < second ompressor Minimum On Time 2 minutes 5 seconds ompressor Short ycle Delay 4 minutes 5 seconds Blower Off Delay 0 seconds 2 seconds Fault Recognition Delay High Pressure Less than second Less than second Start-Up Bypass Low Pressure Fault Recognition Delay Low Pressure Start-Up Bypass Low Water/Air oil Limit Fault Recognition Delay Low Water/Air oil Limit Fault Recognition Delay ondensate Overflow Thermostat all Recognition Time Auxiliary Heat Staging Delay Emergency Heat Staging Delay reen 2 minutes 0 seconds 0 seconds 0 seconds 2 minutes 0 seconds 0 seconds 0 seconds 0 seconds 0 seconds 2 seconds 2 seconds 5 minutes 20 seconds 2 minutes 7.5 seconds Water Valve Slow Open Delay 90 seconds 90 seconds Reheat Delay 0 seconds 0 seconds Brown (2) ondensate Aurora LED Flash odes Slow Flash second on and second off Fast Flash 00 milliseconds on and 00 milliseconds off Flash ode 00 milliseconds on and 400 milliseconds off with a 2 second pause before repeating Random Start Delay Status LED (LED, reen) Fast Flash onfiguration LED (LED2, Yellow) Fast Flash Fault LED (LED, Red) Fast Flash Status LED (LED, reen) onfiguration LED (LED2, Yellow) Fault LED (LED, Red) 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 Test Mode Slow Flash EM onfigure Mode Fast Flash High Pressure Lockout Flash ode 2 Lockout Active Fast Flash Reset onfigure Mode Off Low Pressure Lockout Flash ode Dehumidification Mode Flash ode 2 Low Air oil Limit Lockout - FP2 Flash ode 4 Reserved Flash ode Low Water oil Limit Lockout - FP Flash ode 5 Reserved Flash ode 4 Reserved Flash ode 6 Load Shed Flash ode 5 ondensate Overflow Lockout Flash ode 7 ESD Flash ode 6 Over/Under Voltage Shutdown Flash ode 8 Reserved Flash ode 7 Reserved Flash ode 9 Reserved Flash ode 0 Air/Water oil Limit Sensor Error Flash ode 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 L Field Wiring Lug round Relay ontacts N.O., N.. apacitor Fuse ompressor ontactor O ondensate Overflow Sensor ES Emergency Shutdown HP High Pressure Switch LP Low Pressure Switch FD Freeze Detection Sensor F Fuse T Y R SW Push button SW2 DIP package 8 position RB Blower Relay RV Reversing Valve oil PM Phase uard Monitor RH Reheat Valve oil Thermistor Relay oil Switch - ondensate Overflow Switch - High pressure Switch - Low pressure Polarized connector Light Emitting Diode - reen Light Emitting Diode - Yellow Light Emitting Diode - Red 97P89-07 /8/2 27

28 P VERSATE BASE SERIES INSTALLATION MANUAL Wiring Schematics cont. FX0 ontrol /60/ PS rn PS Blower Motor H M L D09 D08 D07 D0 D05 D04 D0 D02 D Note 9 reen (9) Black (95) Red (97) round Neutral Disconnect L L L2 L2 L L Unit Power Supply /60/ ROUND 24VA om A4 A A5 A A2 A5 Johnson FX-0 Wht Brn White Black (7) RB 24VA J8 O 2 5VD K Brown (60) 24 AI Brown (6) 25 - AI5 + - AI4 + AI A24 A4 2 AI2 5VD 4 A25 A2 AI 5 6 A22 A2 LED 7 5VD 8 A A A2 Black Yellow (50) J2 9 PWM2 K 40 PWM2 om Note 6 ray (68) 4 PWM J7 P Transformer Yellow (5) PB2 Black/White (6) reen/yellow (7) Black (5) Yellow (50) Blue (0) 2 ompressor S Blue R ap Black Red Blue (55) White (62) FD White/Blue (62) Black (6) DA Red () Black (4) Brown () Violet (5) Yellow (8) reen (70) Orange (7) Yellow (2) Blue (72) ray (65) Orange (66) Orange/White (67) Note Blue (2) ES OS Black/Red (64) LP DF/FP Note 4 Red () ap T2 T Airflow Settings L L2 ray (65) Black (4) Brown () Yellow (5) Violet (5) Yellow/White (52) Note 7 Yellow/Red (5) Orange (66) Orange/White (67) J VA om P ray/white (4) 4 DI2 Black (5) 44 DI reen (70) 45 DI0 Orange (7) 46 DI9 Blue (72) 47 DI8 Yellow (2) 48 DI7 J9 Black (22) 49 DI /4/5/6/ om Violet (2) 50 DI6 Red (24) 5 DI5 ray (26) 52 DI4 Blue (27) 5 DI Pink (25) 54 DI2 Black/White (29) 55 9VD Orange (0) 56 DI Yellow (8) Note Black (F20) 20 Black (F9) 9 Black (F8) 8 Black (F7) 7 Black (F6) 6 Black (F5) Notes: 5 Black (F4) 4 Note 2 Isolation Valve Black (F) Black (F2) 2 Black (F) Black (F0) 0 Black (F9) Black (F8) Black (F7) Black (F6) Black (F5) Black (F4) Black (F) Black (F2) Black (F) Black Red 208V Blue 20 V 265V Yellow (20 ) ray (9) Yellow (8 ) Yellow (7 ) Yellow (J2) Violet (5) Brown () Yellow (2 ) 2 Disconnect for 5 degree freeze detection limit 2 Acc output is cycled with the compressor Acc 2 output is cycled with the blower. 4 R,, Y, Y2, and inputs are for use with a wall mount thermostat. TO, S, RS, AI, and SS are for use with a TAXXJ02 zone sensor 5 Network controllable 24VA output. 6 Network controllable PWM output. 7 Wire #52 can be used to connect a field supplied and installed 0-5 VD humidity transmitter. 8 Not Used Bundle in the air handler 9 Optional, factory installed unit mounted disconnect 2 Optional, factory installed internal isolation valve Swap blue and red leads for 208V operation 4 Network configurable input Red (87) reen (86) White (88) Black (R) reen/yellow (8) Note 4 TB Terminal Board 24VA (R) Black () 24V OM () Black (L) Alarm (L) Black (X) Note 2 Acc (X) Black (X2) Note Acc 2 (X2) Black () Blower () Black (O) Rev Valve (O) Black (Y) omp (Y) Black (Y2) omp (Y2) Setpoint Shift (SS) Zone Sensor Terminal Black () Black (SS) Black (44) Black (AI) AI OM (AI) Room Sensor (RS) Sensor OM (S) Temp Occ (TO) Alarm irc A (L) Zone Sensor Terminal Zone Sensor Terminal 2 Zone Sensor Terminal 5 Zone Sensor Terminal 6 Black (RS) Alarm irc B (L2) ray () Note 5 Blue (0) Yellow (J2) Yellow (J) Orange (7) Black (6) Black (5) White (4) Violet () Yellow (J) Black () HP Black/White Yellow Red () Black (4) PB Yellow (5) Yellow (20) Yellow (7) Black/White (6) Note 5 Yellow (2) RV Orange (40) Black/White (4) RB Black (74) Violet (28) Black/ White (4) reen /Yellow (57) Note P2 Black (L) Black (L2) Yellow (50) Black (74) 2 B T T A Legend Factory Low voltage wiring Factory Line voltage wiring Field low voltage wiring Field line voltage wiring Relay coil Optional block D Voltage PB traces Field Zone Sensor Wiring apacitor w/ bleed resistor Switch - ondensate overflow Internal junction Switch - High pressure Quick connect terminal Switch - Low pressure L Field wire lug Polarized connector 2 round Open Jumper Relay ontacts- N.O., N.. Rectified ompressor RP Solenoid Plug losed Jumper ompressor Solenoid - ompressor ontactor OS - Occupied Switch O - ondensate Overflow Sensor PB, PB2 - Power blocks P - ompressor Proving PR- Pump Relay S - ompressor Solenoid RB- Blower Relay DA - Discharge Air Temperature Sensor RP - Rectified Solenoid ompressor Plug DF/FP Dirty Filter or Blower Proving RV - Reversing Valve coil DH - Dehumidification Switch or Humidistat TB - Terminal Board ES - Emergency Shutdown FD - Freeze Detection HP - High Pressure Switch PM - Phase uard Module LP - Low Pressure Switch Blue (0) 97P80-02 //09 28

29 P VERSATE BASE SERIES INSTALLATION MANUAL Wiring Schematics cont. FX0 ontrol 460/60/ Variable Speed EM ompressor 2 T T 24 T Note 0 Red Yellow Black T Phase uard Monitor (PM) L L2 L T2 T Black (7) White (8) Red (9) Note 9 reen (9) round ray (94) Neutral Disconnect Black (54) L Black (95) L L Blue (55) L2 Yellow (96) L2 L2 Red (56) L Red (97) L L L L2 L ROUND 24VA om Johnson FX-0 24VA Transformer Red () Black (4) Brown () Violet (5) Yellow (8) Yellow (5) Black/White (6) reen/yellow (7) D09 D08 A4 D07 D0 A A5 A A2 D05 D04 A5 D0 D02 D0 Orange Brown 5VD AI - AI5 + - AI4 + AI6 A24 A4 AI2 5VD A25 A2 AI A22 A2 LED 5VD A A A2 PWM2 PWM2 om PWM 24VA om Note 2 Isolation Valve 2 Red (87) reen (86) White (88) Blue (0) Red () Black (4) Brown () Violet (5) Yellow (8) reen (70) Orange (7) Yellow (2) Blue (72) ray (65) DI2 Orange (66) DI DI0 Orange/White (67) ray (26) DI9 Black (76) Black (76) DI8 DI7 DI /4/5/6/ om PB2 Note Blue (2) ES OS LP DF/BP P O Brown (60) Brown (6) FD DA White (62) White/Blue (62) Black (6) Black/Red (64) ray (65) Note 7 Yellow (5) Yellow/White (52) Yellow/Red (5) Orange (66) Orange/White (67) Yellow (50) DI6 Note 6 ray (68) Black (5) reen (70) Orange (7) Blue (72) DI5 DI4 DI DI2 9VD DI J7 Yellow (2) Black (22) Violet (2) Red (24) ray (26) Blue (27) Pink (25) Black/White (29) Orange (0) K K J8 J2 J0 J9 Black (F20) Black (F9) Black (F8) Black (F7) Black (F6) Black (F5) Black (F4) Black (F) Black (F2) Black (F) Black (F0) Black (F9) Black (F8) Black (F7) Black (F6) Black (5) Black (F5) Black (F4) Black (F) Black (F2) Black (F) Yellow (50) Blue (0) Blue EM2 Blower Motor Notes: 0 Unit Power Supply 460/60/ w/neutral Orange Brown PB Black Blue 460V Black/White Yellow - Disconnect for 5 degree freeze detection limit. 2 - Acc output is cycled with the compressor. - Acc 2 output is cycled with the blower. 4 - R,, Y, Y2, and inputs are for use with a wall mount thermostat. TO, S, RS, AI, and SS are for use with a TAXXJ02 zone sensor. 5 - Network controllable 24VA output. 6 - Network controllable PWM output. 7 - Wire #52 can be used to connect a field supplied and installed 0-5 VD humidity transmitter. 9 - Optional, factory installed unit mounted disconnect 0 - Optional, factory installed phase guard - Optional, factory installed phase guard. The yellow transformer wire shall be connected directly to the PB- board, if this option is not installed. 2 - Optional, factory installed internal isolation valve. reen/yellow (8) Note 4 TB Terminal Board 24VA (R) Black (R) Note PM Y-OUT Yellow (9) Red () Black/ White (92) Black (4) Black () 24V OM () Black (L) Alarm (L) Black (X) Note 2 Acc (X) Black (X2) PB Yellow (5) Yellow (20) Yellow (7) Black/White (6) Note Acc 2 (X2) Black () Blower () Black (O) Rev Valve (O) Black (Y) omp (Y) Black (Y2) omp (Y2) Setpoint Shift (SS) Zone Sensor Terminal AI OM (AI) Zone Sensor Terminal Room Sensor (RS) Zone Sensor Terminal 2 Black () Sensor OM (S) Black (SS) Zone Sensor Terminal 5 Black (44) Temp Occ (TO) Zone Sensor Terminal 6 Black (AI) Alarm irc A (L) Reheat Enable Black (RS) Alarm irc B (L2) (Dehumidistat) Black (L) Violet (28) Violet () Black/ White Yellow (20) (4) Yellow (2) ray (9) RH ray (75) Blue Yellow (8) Yellow (7) Yellow (J2) Dual Violet (5) apacity Units Only Brown () Yellow (2) Black (L2) ray () Note 5 Blue (0) Yellow (J2) Yellow (J) Orange (7) RV Black (6) Orange (40) Note 0 Black/ Black (5) White (92) White (4) Black/White (4) Violet () Yellow (J) Black () HP reen/yellow (57) Variable Speed 2 EM Blower 5 Motor 0 P2 Yellow (50) B T T A N Y 2 P ray/white (4) Black (54) Blue (55) Red (56) RP reen S Legend Factory Low voltage wiring Factory Line voltage wiring Field low voltage wiring Field line voltage wiring Relay coil Optional block D Voltage PB traces apacitor w/ bleed resistor Field Zone Sensor Wiring Switch - ondensate overflow Internal junction Switch - High pressure Quick connect terminal Switch - Low pressure L Field wire lug Polarized connector 2 round Open Jumper Relay ontacts- N.O., N.. Rectified ompressor RP Solenoid Plug losed Jumper ompressor Solenoid - ompressor ontactor OS - Occupied Switch O - ondensate Overflow Sensor PB, PB2 - Power blocks P - ompressor Proving PR- Pump Relay S - ompressor Solenoid RB- Blower Relay DA - Discharge Air Temperature Sensor RP - Rectified Solenoid ompressor Plug DF/BP Dirty Filter or Blower Proving RV - Reversing Valve coil DH - Dehumidification Switch or Humidistat TB - Terminal Board ES - Emergency Shutdown FD - Freeze Detection Sensor HP - High Pressure Switch PM - Phase uard Module LP - Low Pressure Switch RH - Reheat Valve oil 97P /9/2 29

30 P VERSATE BASE SERIES INSTALLATION MANUAL L T Phase uard Monitor (PM) L L2 L D09 D08 D07 D0 D05 D04 D0 D02 D reen/yellow (57) Note 8 0 reen (9) Black (95) Yellow (96) Red (97) Note 9 round Neutral Disconnect L L L2 L2 L L Black PB P Yellow (50) Page Transformer Note 0 Black (7) White (8) Red (9) Yellow (5) Black/White (6) reen/yellow (7) ROUND 24VA om A4 A A5 A A2 A5 Johnson FX-0 Black (5) ompressor T T T2 Red Yellow Black T T2 L L2 J8 2 5VD 24VA AI AI AI AI6 A24 A4 2 AI2 5VD 4 A25 A2 5 AI 6 A22 A2 LED 7 5VD 8 A A A Red () Black (4) J2 9 PWM2 40 PWM2 om 4 PWM Brown () Violet (5) Yellow (8) reen (70) Orange (7) Yellow (2) Blue (72) ray (65) Orange (66) O K Brown (60) Orange/White (67) Brown (6) FD DA White (62) White/Blue (42) Black (6) Black/Red (64) ray (65) Note 7 Yellow (5) Yellow/White (52) Yellow/Red (5) Orange (66) Orange/White (67) Yellow (50) K J VA om 4 DI2 44 DI 45 DI0 46 DI9 47 DI8 48 DI7 Note 6 ray (68) P ray/white (4) Black (5) reen (70) Orange (7) Blue (72) Yellow (2) Tan Blue (0) PB2 Black (22) DF/BP Violet (2) Note Red (24) Note 4 Blue (2) ray (26) LP Blue (27) ES Pink (25) Black/White (29) OS Orange (0) Yellow (50) Red () Black (4) Brown () Violet (5) Yellow (8) Black (F20) Black (F9) Black (F8) Black (F7) Black (F6) Black (F5) Black (F4) Black (F) Black (F2) Black (F) Black (F0) Black (F9) Black (F8) Black (F7) Black (F6) Black (F5) Black (F4) J9 49 DI /4/5/6/ om 50 DI6 5 DI5 52 DI4 5 DI 54 DI2 55 9VD 56 DI J7 Black (F) Black (F2) Black (F) Yellow (20) ray (9) Yellow (8) Yellow (7) Yellow (J2) Violet (5) Brown () Yellow (2) ray () Note 5 Blue (0) Yellow (J2) Yellow (J) Orange (7) Black (6) Black (5) White (4) Yellow (J) Black () Yellow Red () Black (4) Yellow (5) Yellow (20) Yellow (7) Black/White (6) RV Orange (40) Note 0 Black/ White (92) Black/White (4) Blue (0) Violet (28) Violet () Yellow (2) Notes: Disconnect for 5 degree freeze detection limit. 2 Acc output is cycled with the compressor. Acc 2 output is cycled with the blower. 4 R,, Y, Y2, and inputs are for use with a wall mount thermostat. TO, S, RS, AI, and SS are for use with a TAXXJ02 zone sensor. 5 Network controllable 24VA output. 6 Network controllable PWM output. 7 Wire #52 can be used to connect a field supplied and installed 0-5 VD humidity transmitter. Note 2 8 Not Used Bundle in the air handler. Isolation 9 Optional, factory installed unit mounted disconnect Valve 0 Optional, factory installed phase guard Optional, factory installed phase guard. The yellow transformer wire 2 shall be connected directly to the PB-, if this option is not installed. 2 Optional, factory installed internal isolation valve. Red 4 Network configurable input. (87) 5 Refer to the 5-Speed EM Motor Low Voltage onnection Table. reen (86) White reen/yellow (8) (88) Note 4 TB Terminal Board 24VA (R) Black (R) Black () 24V OM () Black (L) Alarm (L) Black (X) Note 2 Acc (X) Black (X2) Note Acc 2 (X2) Black () Blower () Black (O) Rev Valve (O) Black (Y) omp (Y) Black (Y2) omp (Y2) Setpoint Shift (SS) Zone Sensor Terminal AI OM (AI) Zone Sensor Terminal Room Sensor (RS) Zone Sensor Terminal 2 Black () Sensor OM (S) Black (SS) Zone Sensor Terminal 5 Black (44) Temp Occ (TO) Zone Sensor Terminal 6 Black (AI) Alarm irc A (L) Black (RS) Alarm irc B (L2) Black (L) Violet () HP Black/White Note 5 Note PM Y-OUT Yellow (9) Black/ White (92) Black/ White (4) B 6 5-Speed EM Blower Motor T T A Y Wiring Schematics cont. FX0 ontrol 460/60/ 5-Speed EM Red Tan N L 5-Speed EM Low Voltage onnections Model TAP- TAP-2 TAP- TAP-4 TAP-5 05 Blue Red ray 08 Blue Red ray 02 Blue Red ray 024 Blue Red ray 00 Blue Red ray 06 Blue Red ray 04 Blue Red ray 042 Blue Red ray 048 Blue Red ray 060 Blue Red ray 070 Blue Red ray Tan Blue 460V Unit Power Supply 460/60/ Note 5 Blue Brown Black Black (L2) Orange Red reen Legend Factory Low voltage wiring Factory Line voltage wiring Field low voltage wiring Field line voltage wiring Relay coil Optional block D Voltage PB traces apacitor w/ bleed resistor Field Zone Sensor Wiring Switch - ondensate overflow Internal junction Switch - High pressure Quick connect terminal Switch - Low pressure L Field wire lug Polarized connector 2 round Open Jumper Relay ontacts- N.O., N.. Rectified ompressor RP Solenoid Plug losed Jumper ompressor Solenoid - ompressor ontactor OS - Occupied Switch O - ondensate Overflow Sensor PB, PB2 - Power blocks P - ompressor Proving PR- Pump Relay S - ompressor Solenoid RB- Blower Relay DA - Discharge Air Temperature Sensor RP - Rectified Solenoid ompressor Plug DF/BP Dirty Filter or Blower Proving RV - Reversing Valve coil DH - Dehumidification Switch or Humidistat TB - Terminal Board ES - Emergency Shutdown FD - Freeze Detection Sensor HP - High Pressure Switch PM - Phase uard Module LP - Low Pressure Switch RH - Reheat Valve oil 97P /8/2 0

31 ontrols - Aurora Base ontrol Aurora Base ontrol Field Selectable Options via Hardware DIP Switch (SW) Test/onfiguration Button (See SW Operation Table) Test Mode The control is placed in the test mode by holding the push button switch SW for 2-5 seconds. In test mode most of the control timings will be shortened by a factor of sixteen (6). LED (green) will flash at second on and second off. Additionally, when entering test mode LED (red) will flash the last lockout one time. Test mode will automatically time out after 0 minutes. ontrol Features Single or Dual apacity ompressors Either single or dual capacity compressors can be operated. Variable Speed EM Blower Motor Option A traditional variable speed EM blower motor can be driven directly using the onboard PWM output. Three blower speeds are available based upon the, Y, and Y2/W input signals to the board. The blower speeds can be changed either by the variable speed EM manual configurations mode method or by using the Aurora AID Tool directly. All three blower speeds can be set to the same speed if desired. 5-Speed Blower Motor Option A 5-speed blower motor will be driven directly using the thermostat connections. Any three of the, Y, or Y2/W signals can drive any of the 5 available pre-programmed blower speeds on the motor. Other ontrol Features Random 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) (where applicable) Modbus communication (slave) (where applicable) Test mode can be exited by pressing and holding the SW button for 2 to 5 seconds or by cycling the power. Test mode will automatically be exited after 0 minutes. Variable Speed EM onfiguration Mode The control is placed in variable speed EM configuration mode by holding the pushbutton switch SW for 5 to 0 seconds, the high, medium, and low variable speed EM speeds can be selected by following the LED display lights. LED2 (yellow) will fast flash when entering variable speed EM configuration. When setting low speed LED (green) will be continuously lit, for medium speed LED (red) will be continuously lit, and for high speed both LED (green) and LED (red) will be continuously lit. During variable speed EM configuration mode LED2 (yellow) will flash each of the 2 possible blower speeds times. When the desired speed is flashed press SW, LED2 will fast flash until SW is released. Low speed has now been selected. Next select medium speed, and high speed blower selections following the same process above. After third selection has been made, the control will exit the variable speed EM configuration mode. Reset onfiguration Mode The control is placed in reset configuration mode by holding the push button switch SW for 50 to 60 seconds. This will reset all configuration settings and the EEPROM back to the factory default settings. LED (green) will turn off when entering reset configuration mode. Once LED (green) turns off release SW and the control will reset. DIP Switch (SW2) SW2- FP Selection Temperature limit setting for freeze detection. On = 0 F; Off = 5 F. SW2-2 FP2 Selection Future Use SW2- RV 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 Relay Operation (P2) and 2-5

32 ontrols - Aurora Base ontrol cont. Access Relay Operation SW2-4 SW2-5 ycle with Blower ON ON ycle with ompressor OFF OFF Water Valve Slow Opening ON OFF (Reserved) OFF ON 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 Reheat Operation On = Normal; Off = Reheat 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 variable speed EM manual configurations mode method or by using the Aurora AID Tool directly (see Instruction uide: Aurora Interface and Diagnostic (AID) Tool topic). Field Selectable Options via Software (Selectable via the Aurora AID Tool) Variable Speed EM Blower Speeds A traditional variable speed EM blower motor can be driven directly using the onboard PWM output. Three blower speeds are available, based upon the (low), Y (med), and Y2/W (high) input signals to the board. The blower speeds can be changed either by the variable speed EM manual configurations mode method (see Variable Speed EM onfiguration Mode topic) or by using the Aurora AID Tool directly. All three blower speeds can be set to the same speed if desired. 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 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. Random Start 5 to 80 second random start upon power up. Fault Retry 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 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 low 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 LED (Red) shall flash the fault code. To reset lockout conditions with SW2-8 On, thermostat inputs Y, Y2, and W must be removed for at least three () seconds. To reset lockout conditions with SW2-8 Off, thermostat inputs Y, Y2, W, and DH must be removed for at least three () seconds. Lockout may also be reset by turning power off for at least 5 seconds or by enabling the emergency shutdown input for at least 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 ten (0) 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 two (2) minutes. When the W input is removed, all of the emergency heat outputs will turn off, and the variable speed EM blower will shift to low speed and PS blower motor output will remain on. High Pressure fault is recognized when the Normally losed High Pressure Switch, P4-9/0 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 0 seconds. losure of the LPS any time during the 0 second recognition time restarts the 0 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. 2

33 ontrols - Aurora Base ontrol cont. ondensate Overflow - fault is recognized when the impedance between this line and 24 VA common or chassis ground drops below 00K ohms for 0 seconds continuously. Freeze Detection - set points shall be either 0 F or 5 F. When the thermistor temperature drops below the selected set point, the control shall begin counting down the 0 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. Over/Under Voltage Shutdown - An over/under voltage condition exists when the control voltage is outside the range of 8 VA to 0 VA. If the over/under voltage shutdown lasts for 5 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 8 VA to 0 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, Y, Y2, W, DH, and are not active. Input O may be active. The blower and compressor will be off. Heating Operation Heating, st Stage (Y) - The blower is started on low speed immediately and the compressor is energized 0 seconds after the Y input is received. The variable speed EM blower motor is switched to medium speed 5 seconds after the Y input. Heating, 2nd Stage (Y, Y2) - The compressor will be staged to full capacity 20 seconds after Y2 input is received. The variable speed EM blower will shift to high speed 5 seconds after the Y2 input is received. Heating, rd Stage (Y, Y2, W) - The first stage of electric heat is energized 0 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 low speed, 0 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 high speed. If the emergency heat demand is not satisfied after 2 minutes the second electric heat stage will be energized. Blower () - The blower will start immediately upon receiving a thermostat command. If there are no other commands from the thermostat the variable speed EM will run on low speed until the command is removed. Regardless of blower input () from the thermostat, the blower will remain on low speed for 0 seconds at the end of each heating cycle. 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. ooling, st Stage (Y,O) - The blower is started on low speed immediately and the compressor is energized 0 seconds after the Y input is received. The variable speed EM blower motor is switched to medium speed 5 seconds after the Y input. ooling, 2nd Stage (Y, Y2, O) - The compressor will be staged to full capacity 20 seconds after Y2 input was received. The variable speed EM blower will shift to high speed 5 seconds after the Y2 input was received. Blower () - The blower will start immediately upon receiving a thermostat command. If there are no other commands from the thermostat the variable speed EM will run on low speed until the command is removed. Regardless of blower input () from the thermostat, the blower will remain on low speed for 0 seconds at the end of each heating, cooling, emergency heat, and reheat cycle. Dehumidification (Y, O, DH or Y, Y2, O, DH) - When a DH command is received from the thermostat during a compressor call for cooling the variable speed EM blower speed will be reduced by 5% 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.

34 ontrols - Aurora Base ontrol cont. 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. 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 (LED, 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 (Reserved) Flash ode (Reserved) Flash ode 4 Load Shed Flash ode 5 ESD Flash ode 6 (Reserved) Flash ode 7 onfiguration LED (LED2, Yellow) Description of Operation No Software Overwritten DIP Switch was Overwritten Variable Speed EM onfiguration Mode Fault LED (LED, Red) onfiguration LED, Yellow Flashing Variable Speed EM Setting Slow Flash Fast Flash Description of Operation Fault LED, Red Normal Mode OFF Input Fault Lockout Flash ode High Pressure Lockout Flash ode 2 Low Pressure Lockout Flash ode Freeze Detection 2 - (Future Use) Flash ode 4 Freeze Detection - (oax) Flash ode 5 (Reserved) Flash ode 6 ondensate Overflow Flash ode 7 Over/Under Voltage Shutdown Flash ode 8 Freeze Detection Sensor Error (Sensor is Out of Range) Flash ode Aurora Interface and Design (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 RTU communication. The AID Tool provides diagnostics, fault management, variable speed EM setup, and system configuration capabilities to the Aurora family of controls. An AID Tool is recommended, although not required, for variable speed EM airflow settings. AB ontrol Board Layout 6.25 in. 2 2 F Y HP HP LP LP FP2 FP2 FP FP REV REV LO HI F F R Factory Factory JW2 - Alarm P2 P4 P5 PWM FM EM PWM P SW Test RV K K2 Hi K Fan K4 Alarm K5 Acc K6 Field onnections ES LS ALM AL A c A no A nc Off LED FP 5 o F/0 o F R FP2 5 o F/0 o F Fault RV B/O A Dip A Dip 2 LED Dual/Single L Pulse/ontinuous Status Reheat/Normal P9 LO P LO P Factory Use 5.0 in. Aurora TM Base ontrol Factory Fan onnection R R O/B Field onnections O/B 5.5 in. SW2 On LED 2 2 Y onfig Y Y2 W Y Y2 W DH DH om om2 A-Fuse R Factory P6 P RS485 Exp LED 5 P7 RS 485 P8 LED 4 RS485 NET R EH EH2 EH O N/A (+) (-) R (+) (-) R 5.75 in. 4

35 ontrols - FX0 (optional) Optional FX0 Microprocessor and BAS Interface temperature, O 2 or current status switches. The control has unused binary and PWM outputs that can be commanded over the BAS for field use. An optional Medium User Interface (MUI) for control setup and advanced diagnostics is available with some mounting kits, MUIK - Panel mount version and the MUIK4-Wall mount version. Main FX 0 Board The FX0 is a microprocessor based control that not only monitors and controls the heat pump but also can communicate any of this information back to the building automation system (BAS). This means that not only does the control monitor the heat pump at the unit you can also monitor and control many the features over the BAS. This clearly puts the FX0 in a class of its own. The control will enumerate all fault conditions (HP, LP, O, LO, and Freeze Detection) over a BAS as well as display them on a medium user interface (MUI). HP, LP, O and Freeze Detection faults can all be reset over a BAS. A Loss Of harge fault can not be reset or bypassed until the problem has been corrected. A MUI is invaluable as a service tool for the building service team. The unit can be commanded to run by a typical heat pump thermostat or run based on heating and cooling set points supplied by a BAS. The control board is wired with quick connect harnesses for easy field change out of a bad control board. All variable speed EM blower speed settings can be changed over a BAS or with a MUI. The control has an input programmed to enable field installed emergency heat in the event that the compressor is locked out. This input can also be commanded on from a BAS as needed. An alarm history can be viewed through the MUI and will be held in memory until the unit is power cycled. Relative humidity can be read by a 0-5VD humidity sensor that is displayed over the network. If you are using a variable speed EM blower motor the control can enable dehumidification mode based on a set point in the control. The dehumidification set point itself can also be changed over a BAS or with a MUI. Dehumidification mode can also be enabled by the BAS. Because the FX0 is not factory configured to read O 2 levels, contact the factory for application assistance. The FX0 control has unused analog and digital inputs for field installed items such as air temperature, water Zone Sensors There are two options for zone sensors that can be used with the FX0 control. Both sensors use a Johnson controls A99 positive temperature coefficient type sensor. The TAXXJ02 has a set point adjustment now which will give the end user a +/- 5 F adjustment from the set point as well as a push button that can be used for temporary occupancy. The control leaves the factory set to operate with a TAXXJ02 sensor, the TAXXA04 sensor through a building automation system, or with a user interface. Standard Features Anti Short ycle High Pressure Protection Low Pressure Protection Freeze Detection Loss Of harge Detection Random Start Display for diagnostics Reset Lockout at disconnect or through BAS 2 Accessory outputs Optional BAS add-on controls DD Operation and onnection Other optional network protocol boards that can be added to the FX0 are: Johnson ontrol N2 LonWorks BAnet - 9,200 Baud rate - Limit devices to 0 on a single trunk line ontrol and Safety Feature Details Emergency Shutdown The emergency shutdown mode can be activated by a command from a facility management system or a closed contact on BI-2. The default state for the emergency shutdown data point is off. When the emergency shutdown mode is activated, all outputs will be turned off immediately and will remain off until the emergency shutdown mode is de-activated. The first time the compressor starts after the emergency shutdown mode has been de-activated, there will be a random start delay present. 5

36 ontrols - FX0 (optional) cont. Lockout Mode Lockout mode can be activated by any of the following fault signals: refrigerant system high pressure, refrigerant system low pressure, freeze detection, and condensate overflow. When any valid fault signal remains continuously active for the length of its recognition delay, the controller will go into fault retry mode, which will turn off the compressor. After the ompressor short cycle delay, the compressor will attempt to operate once again. If three consecutive faults occur in 60 minutes during a single heating or cooling demand, the unit will go into lockout mode, turning off the compressor, enabling the alarm output, and setting the blower back to low speed operation until the controller is reset. If the control faults due to the low pressure input (BI-) being open during the pre-compressor startup check, the control will go into lockout mode immediately, disabling the compressor from starting and enabling the alarm output (BO-6). The lockout condition can be reset by powering down the controller, by a command from the BAS, or by the holding the ES and Return keys on the MUI for 5 seconds. Low Pressure (BI-) The low-pressure switch shall be a normally closed (N) switch that monitors the systems refrigerant pressure. The input shall be checked 5 seconds before compressor start up to be sure the pressure switch is closed and then ignored for the first 2 minutes after the compressor output (BO-2) is enabled. If the switch is open continuously for (0) seconds during compressor operation the compressor output (BO-2) will be disabled. The compressor will not restart until the compressor short cycle time delay has been satisfied. ondensate Overflow The condensate overflow sensing circuit will monitor the condensate level as a resistance input to AI-. If the condensate water level rises resulting in the input resistance rising above the set point for the recognition delay period, the condition will be recognized as a fault. The condensate will be subjected to a (0) second lockout delay which requires that the fault be sensed for a continuous (0) seconds before suspending unit operation. Alarm Output (BO-6) The alarm output will be enabled when the control is in the lockout mode and will be disabled when the lockout is reset. Freeze Detection (AI-5) The freeze detection sensor will monitor the liquid refrigerant temperature entering the water coil in the heating mode. If the temperature drops below the freeze detection trip point for the recognition delay period, the condition will be recognized as a fault. The freeze detection trip point will be factory set for 0 F (- ) and will be field selectable for 5 F (-9 ) by removing a jumper wire on BI-5. The freeze detection fault condition will be bypassed 2 minutes at normal compressor startup, to allow the refrigeration circuit to stabilize. If the freeze detection sensor becomes unreliable at any time compressor operation will immediately be suspended until the problem is corrected. This should be displayed as an alarm on the BAS and the MUI. This alarm will be reported as a Water Low Temp Limit fault. High Pressure (BI-) The high-pressure switch shall be a normally closed (N) switch that monitors the systems refrigerant pressure. If the input senses the high-pressure switch is open it must disable the compressor output immediately and count the fault. The compressor minimum on time does not apply if the highpressure switch opens. The compressor will not restart until the compressor short cycle time delay has been satisfied. Test Mode Raising the zone temperature input (AI-) reading to F or by holding the ES and down arrow keys on the MUI for 5 seconds will put the control into test mode. In test mode the random start delay and the compressor fixed on delay time will both be shortened to 5 seconds and the reversing valve will be allowed to cycle with out shutting down the compressor. If an MUI is connected to the control LED 8 will flash and the words Test Mode Enabled will be shown on the LD display when the control is in test mode. Test mode will be disabled after a power cycle, 0 minute timeout, or by holding the ES and Up arrow keys on the MUI. Sequence of Operation Power Fail Restart When the controller is first powered up, the outputs will be disabled for a random start delay. The delay is provided to prevent simultaneous starting of multiple heat pumps. Once the timer expires, the controller will operate normally. Random Start Delay This delay will be used after every power failure, as well as the first time the compressor is started after the control exits the unoccupied mode or the emergency shutdown mode. The delay should not be less than second and not longer than 20 seconds. If the control is in test mode the random start delay will be shortened to 5 seconds. 6