G Series. G Series 7-25 Tons Installation Manual. Water Source/Geothermal Heat Pump Commercial 7-25 Tons. Installation Information

Transcription

1 G Series Water Source/Geothermal Heat Pump Commercial 7-25 Tons Installation Information Water Piping Connections Electrical Connections G Series 7-25 Tons Installation Manual Startup Procedures Preventive Maintenance IM1021AG1A 01/15

2 Table of Contents Model Nomenclature General Installation Information Vertical Dimensions Horizontal Dimensions Installing Horizontal Units Installating Vertical Units Water Quality System Cleaning and Flushing Electrical Connections Electrical Data Blower Performance Data Wiring Schematics Optional FX10 Microprocessor Control Blower Drive Sheaves Unit Startup Operating Parameters Pressure Drop Startup/Troubleshooting Form Preventive Maintenance Replacement Procedures

3 Model Nomenclature GX 120 T L 3 0 A C A N 14 N SS 19 * Model Type GX Aston Large Series Unit Capacity (MBTUH) 080, 095, 120, , 240, 300 Discharge Configuration T Top Upflow (Vertical) X Rear Discharge (Vertical) E End Discharge (Horizontal) S Discharge Side (Horizontal) Return Air Configuration L Left R Right Voltage /60/ /60/ /60/3 Future Option 0 Future Blower Options A Standard Static, Standard Motor B Low Static, Standard Motor 1 C High Static, Standard Motor 2 D Standard Static, Large Motor 2,3 E High Static, Large Motor 3 Vintage * - Factory Use Only Non-Standard Options SS Standard QP 2" MERV 13 Filter SF Stainless Steel Drain Pan 4 SG 2" MERV 13 Filter, Stainless Steel Drain Pan 4 Air Coil/Insulation Option 3 Uncoated 4 AlumiSeal TM Control Option 4 FX10 Standard without Communication 8 FX10 Standard with User Interface Water Control Option N None Hot Gas Bypass/Reheat Option N None G Hot Gas Bypass R Hot Gas Reheat B Hot Gas Bypass w/hot Gas Reheat Sound Kit Option A None B Sound Kit Water Coil Option C Copper N CuproNickel Notes: 1 Not available on vertical GX095, 180, horizontal GX080 2 Not available on vertical GX080, Not available on horizontal GX120, vertical GX300 4 Not available on vertical GX Stainless steel is standard on vertical GX Rev.: 20 September 2013D 4

4 General Installation Information Safety Considerations WARNING: 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. Care 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 Prior to setting the unit in place, remove and discard the compressor hold down shipping bolt located at the front of the compressor mounting bracket. Figure 1: Vertical Unit Mounting (GX ) 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. It is not necessary to anchor the unit to the floor (see right). 5

5 Vertical Dimensions 7-10 Tons TOP DISCHARGE SIDE DISCHARGE CONTROL BOX AND WATER LEFT RETURN Legend AP = Alternate Service Panel BP = Blower Service Panel CP = Control Access Panel CMP = Compressor Service Panel CONTROL BOX AND WATER LEFT RETURN 2 PRIMARY SERVICE ACCESS FOR LEFT RETURN CP CONTROL BOX RIGHT RETURN 2 PRIMARY SERVICE ACCESS FOR LEFT RETURN CP CONTROL BOX RIGHT RETURN AP CMP CP AP CMP CP 2 SECONDARY SERVICE ACCESS 2 PRIMARY SERVICE ACCESS FOR RIGHT RETURN 2 SECONDARY SERVICE ACCESS 2 PRIMARY SERVICE ACCESS FOR RIGHT RETURN 2.9 in [7.4 cm] 61.3 in [155.8 cm] 58.1 in [147.6 cm] 2.9 in [7.4 cm] 61.3 in [155.7 cm] 58.1 in [147.6 cm] 34.1 in [86.6 cm] 16.1 in [40.9 cm] TOP VIEW Left or Right Return 34.1 in [86.6 cm] 21.6 in [54.9 cm] 18.1 in [46.0 cm] 1.42 in [3.6 cm] 22.6 in [57.4 cm] 16.1 in [40.9 cm] TOP PANEL COVER 1 in [2.5 cm] 1.8 in [4.6 cm] SIDE VIEW Left or Right Return 18.1 in [46 cm] 56 in [142.2 cm] 56 in [142.2 cm] 2 in [5.1 cm] 2 in [5.1 cm] AIR COILS AIR COILS 36.3 in [92.2 cm] 34.4 in [87.4 cm] 7.2 in [18.3 cm] DRAIN CONNECTION LEFT RETURN RIGHT RETURN TOP OR SIDE DISCHARGE 2.2 in [5.6 cm] ELECTRICAL CONNECTIONS 2.2 in [5.6 cm] ELECTRICAL CONNECTIONS 34.4 in [87.4 cm] 7.2 in [18.3 cm] 36.3 in [92.2 cm] DRAIN CONNECTION 12.5 in [31.8 cm] 15.6 in [39.6 cm] 15.6 in [39.6 cm] 12.5 in [31.8 cm] 2.6 in [6.6 cm] WATER OUT WATER IN 2.0 in [5.1 cm] 10.1 in [25.7 cm] 4.0 in [10.2 cm] 2.2 in [5.6 cm] 10.1 in [25.7 cm] 4.0 in [10.2 cm] 2.2 in [5.6 cm] 2.0 in [5.1 cm] 2.6 in [6.6 cm] WATER OUT WATER IN 6 REV 2/11/08

6 Vertical Dimensions cont Tons TOP DISCHARGE CONTROL BOX AND WATER RIGHT RETURN SIDE DISCHARGE CONTROL BOX AND WATER LEFT RETURN 2 PRIMARY SERVICE ACCESS CP CP CONTROL BOX LEFT RETURN CONTROL BOX RIGHT RETURN AP CMP 2 SECONDARY SERVICE ACCESS AP CMP 2 PRIMARY SERVICE ACCESS CP Legend AP = Alternate Service Panel BP = Blower Service Panel CP = Control Access Panel CMP = Compressor Service Panel CP 2 PRIMARY SERVICE ACCESS 88.1 in cm 88.1 in cm 86.3 in cm 2.9 in 7.3 cm 2.9 in 7.3 cm 86.3 in cm 34.0 in 86.4 cm TOP VIEW L or R Return 34.0 in 86.4 cm 16.0 in 40.6 cm 16.0 in 40.6 cm 14.2 in 36.1 cm 1.5 in 3.7 cm 18.0 in 45.7 cm 18.0 in 45.7 cm 14.2 in 36.1 cm 1.5 in 3.7 cm 13.8 in 35.1 cm 18.0 in 45.8 cm TOP PANEL COVER 18.0 in 45.8 cm 13.8 in 35.1 cm 1.0 in 2.5 cm 1.0 in 2.5 cm 2.0 in 5.1 cm 88.1 in cm 2.0 in 5.1 cm SIDE VIEW L or R Return 16.0 in 40.6 cm 16.0 in 40.6 cm 66.0 in cm 66.0 in cm 2.0 in 5.1 cm 2.0 in 5.1 cm AIR COILS AIR COILS 41.8 in cm 40.4 in cm LEFT RETURN RIGHT RETURN 40.4 in cm 41.8 in cm TOP OR SIDE DISCHARGE ELECTRICAL CONNECTIONS ELECTRICAL CONNECTIONS DRAIN CONNECTION WATER OUT WATER OUT DRAIN CONNECTION 24.5 in 62.2 cm 19.0 in 48.2 cm 15.2 in 38.7 cm 13.0 in 33.0 cm WATER IN WATER IN 13.0 in 33.0 cm 15.2 in 38.7 cm 19.0 in 48.2 cm 24.5 in 62.2 cm 2.6 in 6.5 cm 6.5 in 16.5 cm 1.7 in 4.4 cm 6.0 in 15.2 cm 6.0 in 15.2 cm 1.7 in 4.4 cm 2.6 in 6.5 cm 6.5 in 16.5 cm REV 8/16/07 7

7 Horizontal Dimensions 7-10 Tons RIGHT RETURN LEFT RETURN BP BP Legend AP = Alternate Service Panel BP = Blower Service Panel CP = Control Access Panel CMP = Compressor Service Panel CMP CMP 2 SECONDARY SERVICE ACCESS CMP CP 2 PRIMARY SERVICE ACCESS CP CMP 2 SECONDARY SERVICE ACCESS 4.1 TOP VIEW WATER OUT SIDE VIEW WATER OUT SIDE DISCHARGE OPTION WATER IN WATER IN SIDE DISCHARGE OPTION END VIEW END DISCHARGE OPTION DRAIN CONNECTION END DISCHARGE OPTION DRAIN CONNECTION REV 4/28/08 8

8 Installing Horizontal Units Mounting Horizontal Units Units are available with side or end discharge in left-hand or right-hand return air configurations. Horizontal units are normally suspended from a ceiling by four 1/2 in. diameter threaded rods. The rods are usually attached to the unit corners by the bottom panel mounting channel and the mounting grommets furnished with each unit. CAUTION: Do not use rods smaller than 1/2 in. diameter since they may not be strong enough to support the unit. The rods must be securely anchored to the ceiling (the units are approximately 800 lbs.). Figure 1: Typical Horizontal Application 1/2 Threaded Rods (4) Power Disconnect Low Voltage Flexible Duct Collar P/T Plugs Isolation Grommets (Included) Condensate Drain Connection Hose Kits Insulate supply plenum and use at least a 90 elbow to reduce noise Ball Valves Water Loop Layout the threaded rods per the dimensions in Figure 2. Assemble the hangers to the unit as shown in Figure 3. Securely tighten the brackets to the unit. When attaching the hanger rods to the bracket, a double nut is recommended since vibration could loosen a single nut. The unit should be pitched approximately 1/2 in. towards the drain in both directions, to facilitate condensate removal. Figure 2: Mounting Rod Layout Top View Figure 3: Mounting Hardware 1/2 in. Threaded Rod (not included) Vibration Isolator Washer (not included) 90.5 Hex Nuts (not included) 9

9 Installing Horizontal Units cont. Horizontal Unit Corner Weight Distribution A B C D Front Front Back Back Model Return / Discharge Left Right Right Left Left / Side or End 30% 26% 22% 22% Right / Side or End 26% 30% 22% 22% A D B C Approximate Controls 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 1-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. Figure 4: Suggested Layout of Condensate Figure 5: Unit Pitch for Drain 1/2'' Pitch 3/4 in. PVC Coupling Vent (if needed) 3/4 in. PVC 3/4 in. PVC tube stub 1.5 in. 1.5 in. 1/8 in. per foot 10

10 Installing Vertical Units Mounting Vertical Units Units are available with top/side discharge, left-hand or right-hand return air configurations. Vertical units are assembled on rails which facilitate moving and placement of the units. It is not necessary to anchor the unit to the floor. Duct System A supply air duct flange is provided for field installation to facilitate the secure duct connection at the job site. A flexible connector is recommended for discharge and return air duct connections on metal duct systems to prevent vibration transmission. It is recommended that all ductwork be insulated with a minimum of 1/2-inch coated insulation. Installation of the units with uninsulated ductwork in an unconditioned space is not recommended, as the system s performance will be adversely affected. Condensate Drain In vertical units, the internal condensate drain assembly consists of a flexible drain tube which is attached to the drain pan and a 3/4-inch (7-10 tons) and 1-inch (13-25 tons) female pipe thread. An external water trap is not required as the drain tube serves as a trapping loop. The field-installed piping and unit connection must be properly installed and sealed to prevent water leakage. Figure 6: Typical Vertical Application Flexible duct Collar Control Box Water Supply and Return Connections Condensate Drain ACCESS PANEL ACCESS PANEL ACCESS PANEL 11

11 Water Quality Water Quality Guidelines 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. 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 Copper 90/10 Cupronickel 316 Stainless Steel ph Acidity/Alkalinity Scaling Calcium and (Total Hardness) (Total Hardness) (Total Hardness) Magnesium Carbonate 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 Chlorine Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm Chlorides Less than 20 ppm Less than 125 ppm Less than 300 ppm Carbon Dioxide Less than 50 ppm ppm ppm Corrosion Ammonia Less than 2 ppm Less than 2 ppm Less than 20 ppm Ammonia Chloride 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 Growth) Less than 1 ppm, above this Less than 1 ppm, above this Less than 1 ppm, above this Iron Oxide level deposition will occur level deposition will occur level deposition will occur Erosion Water Connections Suspended Solids Threshold Velocity (Fresh Water) 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 All supply and return water connections are female pipe thread of size specified in physical dimensions. Never use flexible hoses smaller than separate water connections on the unit and limit hose length to 10 ft. per connection. Check carefully for water leaks. Interior Piping All units are recommended to be connected to supply and return piping in a two-pipe reverse return configuration. A reverse return system is inherently self-balancing and requires only trim balancing when multiple quantities of units with different flow and pressure drop characteristics are connected to the same loop. A direct return system may also be made to work acceptably, but proper water flow balance is more difficult to achieve and maintain. Supply and return runouts are usually connected to the unit by short lengths of high pressure flexible hose which are sound attenuators for both unit operating noise and hydraulic pumping noise. One end of the hose should have a swivel fitting to facilitate removal for service. Hard piping can also be connected directly to the unit although it is not recommended since no vibration or noise attenuation can be accomplished. The hard piping must have unions to facilitate unit removal (see figure 1 & 6) for typical application). Some flexible hose threaded fittings are supplied with sealant compound. If not, apply Teflon tape to assure a tight seal. Supply and return shutoff valves are required at each unit. The return shutoff valve can be used for balancing and should be adjusted for proper flow required, or a manual or automatic flow control device should be on the leaving water hose assembly. No unit should be connected to the supply and return piping until the water system has been cleaned and flushed completely. After the cleaning and flushing has taken place, the initial connection should have all valves wide open in preparation for water system filling. 12

12 System Cleaning and Flushing Cleaning 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 Return Runout Supply Runout 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 air Rubber Hose and to verify circulation through all components of the system. Runouts Initially Connected 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. Check 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. 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 HVAC 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. Ground Source Loop System Checkout 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 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. 13

13 Electrical Connections General 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 Code. Unit Power Connection Line voltage connection is made by connecting the incoming line voltage wires to the terminal block as shown on the unit s wiring diagram attached to the inside front panel. Consult the Unit Electrical Data below for correct fuse size. 208 Volt Operation NOTE: All volt units are factory wired for 230 volt operation. For 208 volt operation, the red and the blue transformer wires must be switched between terminal strip PS and contactor RB. 14

14 Electrical Data Model Rated Voltage Blower Blower Total Min Max Compressor* Voltage Min/Max Motor HP Unit Circ Fuse/ MCC RLA LRA FLA*** *** FLA Amp HACR Horizontal /60/3 187/ /60/3 414/ /60/3 518/ /60/3 187/ ** 460/60/3 414/ /60/3 518/ /60/3 187/ /60/3 414/ /60/3 518/ /60/3 187/ ** 460/60/3 414/ /60/3 518/ /60/3 187/ /60/3 414/ /60/3 518/ Vertical /60/3 187/ /60/3 414/ /60/3 518/ /60/3 187/ ** 460/60/3 414/ /60/3 518/ /60/3 187/ /60/3 414/ /60/3 518/ /60/3 187/ ** 460/60/3 414/ /60/3 518/ /60/3 187/ /60/3 414/ /60/3 518/ /60/3 187/ ** 460/60/3 414/ /60/3 518/ /60/3 187/ /60/3 414/ /60/3 518/ /60/3 187/ ** 460/60/3 414/ /60/3 518/ /60/3 187/ /60/3 414/ /60/3 518/ /60/3 187/ ** 460/60/3 414/ /60/3 518/ /60/3 187/ /60/3 414/ /60/3 518/ /60/3 187/ ** 460/60/3 414/ /60/3 518/ /60/3 187/ /60/3 414/ /60/3 518/ *Ratings per each compressor - unit supplied with two 9/10/07 **With optional motor ***Ratings per each blower motor - Vertical models supplied with two. HACR circuit breaker in USA only All fuses Class RK-5 15

15 Horizontal GX080 - Blower Performance Data Belt Drive Airflow in CFM with dry coil and clean air filter. External Static Pressure (in. w.g.) Rated CFM MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE D BHP RPM TURNS OPEN MTR/SHEAVE A BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE C E BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN /25/07 Bold Face Requires Larger 2 HP Motor A=Std Static/Std Mtr;B=Low Static/Std. Mtr;C=High Static/Std. Mtr;D=Std Static/Large Mtr;E=High Static/Large Mtr Units factory shipped with standard static sheave and drive at 2.5 turns open ( in. ESP). Other speeds require field selection. ISO/AHRI rating point with standard static sheave and drive at 1.5 turns open ( in. ESP). Other speeds require field selection. For applications requiring higher static pressures, contact your local representative. Performance data does not include drive losses and is based on sea level conditions. Do not operate in gray region. "na" = information not available at time of printing. All airflow is rated at lowest Voltage if unit is dual Voltage rated, i.e. 208V for V units. 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 0.03 in. wg, 300 fpm by 0.08 in. wg, and 400 fpm by 0.12in. wg. 16

16 Horizontal GX095 - Blower Performance Data Belt Drive Airflow in CFM with dry coil and clean air filter. Rated CFM External Static Pressure (in. w.g.) MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE B D BHP RPM TURNS OPEN MTR/SHEAVE A BHP RPM TURNS OPEN MTR/SHEAVE C E BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN /25/07 Bold Face Requires Larger 2 HP Motor A=Std Static/Std Mtr;B=Low Static/Std. Mtr;C=High Static/Std. Mtr;D=Std Static/Large Mtr;E=High Static/Large Mtr Units factory shipped with standard static sheave and drive at 2 turns open ( in. ESP). Other speeds require field selection. ISO/AHRI rating point with standard static sheave and drive at 2 turns open ( in. ESP). Other speeds require field selection. For applications requiring higher static pressures, contact your local representative. Performance data does not include drive losses and is based on sea level conditions. Do not operate in gray region. "na" = information not available at time of printing. All airflow is rated at lowest Voltage if unit is dual Voltage rated, i.e. 208V for V units. 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 0.03 in. wg, 300 fpm by 0.08 in. wg, and 400 fpm by 0.12in. wg. 17

17 Horizontal GX120 - Blower Performance Data Belt Drive Airflow in CFM with dry coil and clean air filter. External Static Pressure (in. w.g.) Rated CFM MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE B BHP RPM TURNS OPEN MTR/SHEAVE A BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE C 4000 BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN A=Std Static/Std Mtr;B=Low Static/Std. Mtr;C=High Static/Std. Mtr;D=Std Static/Large Mtr;E=High Static/Large Mtr Units factory shipped with standard static sheave and drive at 3.0 turns open ( in. ESP). Other speeds require field selection. ISO/AHRI rating point with standard static sheave and drive at 2.0 turns open ( in. ESP). Other speeds require field selection. For applications requiring higher static pressures, contact your local representative. Performance data does not include drive losses and is based on sea level conditions. Do not operate in gray region. "na" = information not available at time of printing. All airflow is rated at lowest Voltage if unit is dual Voltage rated, i.e. 208V for V units. 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 0.03 in. wg, 300 fpm by 0.08 in. wg, and 400 fpm by 0.12in. wg. 07/23/07 18

18 Vertical GX080 - Blower Performance Data Belt Drive Airflow in CFM with dry coil and clean air filter. External Static Pressure (in. w.g.) Rated CFM MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE B 2400 BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE A BHP RPM TURNS OPEN MTR/SHEAVE E BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN Bold Face Requires 1.5 HP Motor A=Std Static/Std Mtr;B=Low Static/Std. Mtr;C=High Static/Std. Mtr;D=Std Static/Large Mtr;E=High Static/Large Mtr Units factory shipped with standard static sheave and drive at 3 turns open ( in. ESP). Other speeds require field selection. ISO/AHRI rating point with standard static sheave and drive at 3 turns open ( in. ESP). Other speeds require field selection. For applications requiring higher static pressures, contact your local representative. Performance data does not include drive losses and is based on sea level conditions. Do not operate in gray region. "na" = information not available at time of printing. All airflow is rated at lowest Voltage if unit is dual Voltage rated, i.e. 208V for V units. 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 0.03 in. wg, 300 fpm by 0.08 in. wg, and 400 fpm by 0.12in. wg. 07/25/07 19

19 Vertical GX095 - Blower Performance Data Belt Drive Airflow in CFM with dry coil and clean air filter. External Static Pressure (in. w.g.) Rated CFM MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE D 2800 BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE A BHP RPM TURNS OPEN MTR/SHEAVE C BHP RPM TURNS OPEN E MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN Bold Face Requires Larger 2 HP Motor A=Std Static/Std Mtr;B=Low Static/Std. Mtr;C=High Static/Std. Mtr;D=Std Static/Large Mtr;E=High Static/Large Mtr Units factory shipped with standard static sheave and drive at 2 turns open ( in. ESP). Other speeds require field selection. ISO/AHRI rating point with standard static sheave and drive at 1 turns open ( in. ESP). Other speeds require field selection. For applications requiring higher static pressures, contact your local representative. Performance data does not include drive losses and is based on sea level conditions. Do not operate in gray region. "na" = information not available at time of printing. All airflow is rated at lowest Voltage if unit is dual Voltage rated, i.e. 208V for V units. 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 0.03 in. wg, 300 fpm by 0.08 in. wg, and 400 fpm by 0.12in. wg. 7/25/07 20

20 Vertical GX120 - Blower Performance Data Belt Drive Airflow in CFM with dry coil and clean air filter. External Static Pressure (in. w.g.) Rated CFM MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE B BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE A C BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE E BHP RPM TURNS OPEN MTR/SHEAVE D BHP RPM TURNS OPEN Bold Face Requires Larger 3 HP Motor A=Std Static/Std Mtr;B=Low Static/Std. Mtr;C=High Static/Std. Mtr;D=Std Static/Large Mtr;E=High Static/Large Mtr Units factory shipped with standard static sheave and drive at 3 turns open ( in. ESP). Other speeds require field selection. ISO/AHRI rating point with standard static sheave and drive at 1 turns open ( in. ESP). Other speeds require field selection. For applications requiring higher static pressures, contact your local representative. Performance data does not include drive losses and is based on sea level conditions. Do not operate in gray region. "na" = information not available at time of printing. All airflow is rated at lowest Voltage if unit is dual Voltage rated, i.e. 208V for V units. 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 0.03 in. wg, 300 fpm by 0.08 in. wg, and 400 fpm by 0.12 in. wg. 07/25/07 21

21 Vertical GX160 - Blower Performance Data Belt Drive Airflow in CFM with dry coil and clean air filter. External Static Pressure (in. w.g.) Rated CFM MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE 2.0B BHP RPM TURNS OPEN MTR/SHEAVE A BHP RPM TURNS OPEN MTR/SHEAVE E BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN Bold Face Requires Larger 1.5 HP Motor A=Std Static/Std Mtr;B=Low Static/Std. Mtr;C=High Static/Std. Mtr;D=Std Static/Large Mtr;E=High Static/Large Mtr Units factory shipped with standard static sheave and drive at 3 turns open ( in. ESP). Other speeds require field selection. ISO/AHRI rating point with standard static sheave and drive at 2.0 turns open ( in. ESP). Other speeds require field selection. For applications requiring higher static pressures, contact your local representative. Performance data does not include drive losses and is based on sea level conditions. Do not operate in gray region. "na" = information not available at time of printing. All airflow is rated at lowest Voltage if unit is dual Voltage rated, i.e. 208V for V units. 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 0.03 in. wg, 300 fpm by 0.08 in. wg, and 400 fpm by 0.12 in. wg. BHP is given for each blower. Multiply BHP x 2 for unit BHP. 7/25/07 22

22 Vertical GX180 - Blower Performance Data Belt Drive Airflow in CFM with dry coil and clean air filter. External Static Pressure (in. w.g.) Rated CFM MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE A D BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE C BHP RPM TURNS OPEN MTR/SHEAVE E BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN /25/07 Bold Face Requires Larger 2.0 HP Motor A=Std Static/Std Mtr;B=Low Static/Std. Mtr;C=High Static/Std. Mtr;D=Std Static/Large Mtr;E=High Static/Large Mtr Units factory shipped with standard static sheave and drive at 3 turns open ( in. ESP). Other speeds require field selection. ISO/AHRI rating point with standard static sheave and drive at 1.5 turns open ( in. ESP). Other speeds require field selection. For applications requiring higher static pressures, contact your local representative. Performance data does not include drive losses and is based on sea level conditions. Do not operate in gray region. "na" = information not available at time of printing. All airflow is rated at lowest Voltage if unit is dual Voltage rated, i.e. 208V for V units. 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 0.03 in. wg, 300 fpm by 0.08 in. wg, and 400 fpm by 0.12 in. wg. BHP is given for each blower. Multiply BHP x 2 for unit BHP. 23

23 Vertical GX240 - Blower Performance Data Belt Drive Airflow in CFM with dry coil and clean air filter. External Static Pressure (in. w.g.) Rated CFM MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE B BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE A C BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE E BHP RPM TURNS OPEN MTR/SHEAVE D BHP RPM TURNS OPEN /25/07 Bold Face Requires Larger 3.0 HP Motor A=Std Static/Std Mtr;B=Low Static/Std. Mtr;C=High Static/Std. Mtr;D=Std Static/Large Mtr;E=High Static/Large Mtr Units factory shipped with standard static sheave and drive at 2.5 turns open ( in. ESP). Other speeds require field selection. ISO/AHRI rating point with standard static sheave and drive at 2 turns open ( in. ESP). Other speeds require field selection. For applications requiring higher static pressures, contact your local representative. Performance data does not include drive losses and is based on sea level conditions. Do not operate in gray region. "na" = information not available at time of printing. All airflow is rated at lowest Voltage if unit is dual Voltage rated, i.e. 208V for V units. 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 0.03 in. wg, 300 fpm by 0.08 in. wg, and 400 fpm by 0.12 in. wg. BHP is given for each blower. Multiply BHP x 2 for unit BHP. 24

24 Vertical GX300 - Blower Performance Data Belt Drive Airflow in CFM with dry coil and clean air filter. External Static Pressure (in. w.g.) Rated CFM MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE B A BHP RPM TURNS OPEN MTR/SHEAVE C BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN MTR/SHEAVE BHP RPM TURNS OPEN /25/07 A=Std Static/Std Mtr;B=Low Static/Std. Mtr;C=High Static/Std. Mtr;D=Std Static/Large Mtr;E=High Static/Large Mtr Units factory shipped with standard static sheave and drive at 3.0 turns open ( in. ESP). Other speeds require field selection. ISO/AHRI rating point with standard static sheave and drive at 3.0 turns open ( in. ESP). Other speeds require field selection. For applications requiring higher static pressures, contact your local representative. Performance data does not include drive losses and is based on sea level conditions. Do not operate in gray region. "na" = information not available at time of printing. All airflow is rated at lowest Voltage if unit is dual Voltage rated, i.e. 208V for V units. 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 0.03 in. wg, 300 fpm by 0.08 in. wg, and 400 fpm by 0.12 in. wg. BHP is given for each blower. Multiply BHP x 2 for unit BHP. 25

25 Wiring Schematic - FX10 Control /60/3 Compressor 1 T3 T1 Compressor 2 T3 T1 Green Belt Drive Blower Motor Gray (80) Unit Power Supply 480/60/3 or 575/60/3 Red T2 Yellow Black Red T2 Yellow Black Yellow (78) Brown (79) T3 T2 T1 RB L1 L2 L3 G T3 T2 CC1 T1 T3 T2 CC2 T1 L3 L2 L 1 Note 1 TB 24VAC R 24V COM C Comp 1 Y1 Rev Valve O Fan G Alarm L Acc 2 X2 Acc 1 X1 Comp 2 Y2 Setpoint Shift SS AI Com AIC Room Sensor RS Sensor Com SC Temp Occ TO PB Brown (13) Yellow (18) Violet (15) Black (60) Black (61) NOTE 3 NOTE 4 CO FP1 DA FP2 Violet (59) NOTE 2 AP ES OS Blue (58) Orange (35) Org /Wht (36) LP2 LP1 11 K Brown (24) Brown (25) T White (26) White/Blue (27 ) Black (28) T Black/Red (29) T Gray (30 ) Gry/Wht (31) Blue/Wht (33) Pink (5) Violet (1) Green (45) Orange (46) Blue (47) Yellow (48) Black (49) Violet (50) Red (51) Gray (52) Blue (53) Pink (54) Blk/Wht (55) Orange (56) Red (69) Yellow (70) Black (71) J J J8 5VDC - AI3 + - AI5 + - AI4 + - AI6 + - AI2 + 5VDC - AI1 + LED 5VDC J9 L3 A12 A21 PWM2 PWM2 Com PWM1 24VAC Com DI12 DI11 DI10 DI9 DI8 DI7 DI 3/4/5/6 / Com DI6 DI5 DI4 DI3 DI2 9VDC DI1 J7 L2 24 VAC A24 A14 A25 A22 A11 A13 A23 24 VAC Com A32 L1 Grn/Yel (42) GROUND A15 A34 A35 A31 Red (66 ) Yellow (67) Black (68) L3 Red (43) Black (44) Brown (13) Violet (15) Yellow (18) Blk/Wht (41) Yellow (40) A33 Johnson FX-10 L2 D09 D08 D07 D06 D05 D04 D03 D02 D01 L Yellow (172) Yellow (126) Yellow (912) Gray (7) Black (2) Yellow (63) Brown (64) Gray (65) Black/White (6) Pink (5) White/Red (4) White (3) Orange (10) Yellow (20) RV1 HP2 HP1 Org (37) Org (38) Orange (32) RB CC2 CC1 Grn/Yel (62) RV2 Gray/Wht (39) Blk/Wht (34) PB Blk/Wht (22) Black (21) Black (75) Transformer Switch 2 Yellow (57) 1 3 Blk/Wht Blk/Wht (23) Blue 230V Red 208V Black Transformer Yellow Violet (1) Pink (5) Legend L1 Factory low voltage wiring Factory line voltage wiring Field low voltage wiring Field line voltage wiring Optional block Internal junction Quick connect terminal Wire nut Field wire lug Ground T Relay Contacts- N.O., N.C. Thermistor - Johnson Control Relay coil P Switch - High pressure Switch - Low pressure Polarized connector Condensate Overflow AP - Air Proving CC1 - Compressor contactor 1 CC2 - Compressor contactor 2 CO - Condensate overflow CPM1 - Compressor Protection Module 1 CPM2 - Compressor Protection Module 2 DA - Discharge Air Temperature ES - Emergency Shutdown FP1 - Freeze protection sensor 1 FP2 - Freeze protection sensor 2 Notes: HP1 - Stage 1 High Pressure HP2 - Stage 2 High Pressure LP1 - Stage 1 Low Pressure LP2 - Stage 2 Low Pressure OS - Occupied Switch RB - Blower power relay RV1 - Reversing Valve coil 1 RV2 - Reversing Valve coil R, C, Y1, Y2, O, and G are for use with a wall mounted thermostat 2 - Disconnect for 15 degree freeze protection 3 - Acc 1 output is cycled with the compressor 4 - Acc 2 output is cycled with the fan 97P /17/06 26

26 Wiring Schematic - FX10 Control cont. 460/60/3 and 575/60/3 L1 Unit Power Supply 480/60/3 or 575/60/3 L2 L3 G Compressor 1 T3 T3 T1 Red T2 Yellow Black T2 CC1 T1 Compressor 2 T3 T3 T1 Red T2 Yellow Black T2 CC2 T1 Green Yellow (78) Brown (79) T3 Belt Drive Blower Motor T2 Gray (80) T1 RB Note 1 TB 24VAC R 24V COM C Comp 1 Y1 Rev Valve O Fan G Alarm L Acc 2 X2 Acc 1 X1 Comp 2 Y2 Setpoint Shift SS AI Com AIC Room Sensor RS Sensor Com SC Temp Occ TO PB Brown (13) Yellow (18) Violet (15) Black (60) Black (61) NOTE 3 NOTE 4 CO FP1 DA FP2 Violet (59) NOTE 2 AP ES OS Blue (58) Orange (35) Org /Wht (36) LP2 LP1 11 K Brown (24) Brown (25) T White (26) White/Blue (27 ) Black (28) T Black/Red (29) T Gray (30 ) Gry/Wht (31) Blue/Wht (33) Pink (5) Violet (1) Green (45) Orange (46) Blue (47) Yellow (48) Black (49) Violet (50) Red (51) Gray (52) Blue (53) Pink (54) Blk/Wht (55) Orange (56) Red (69) Yellow (70) Black (71) J J J8 5VDC - AI3 + - AI5 + - AI4 + - AI6 + - AI2 + 5VDC - AI1 + LED 5VDC J9 L3 A12 A21 PWM2 PWM2 Com PWM1 24VAC Com DI12 DI11 DI10 DI9 DI8 DI7 DI 3/4/5/6 / Com DI6 DI5 DI4 DI3 DI2 9VDC DI1 J7 L2 24 VAC A24 A14 A25 A22 A11 A13 A23 24 VAC Com A32 L1 Grn/Yel (42) GROUND A15 A34 A35 A31 Red (66 ) Yellow (67) Black (68) L3 Red (43) Black (44) Brown (13) Violet (15) Yellow (18) Blk/Wht (41) Yellow (40) A33 Johnson FX-10 L2 D09 D08 D07 D06 D05 D04 D03 D02 D01 L Yellow (172) Yellow (126) Yellow (912) Gray (7) Black (2) Yellow (63) Brown (64) Gray (65) Black/White (6) Pink (5) White/Red (4) White (3) Orange (10) L3 Yellow (20) RV1 HP2 HP1 Org (37) Org (38) L2 L 1 Orange (32) RB CC2 CC1 Grn/Yel (62) RV2 Gray/Wht (39) Blk/Wht (34) PB Blk/Wht (22) Black (21) Yellow (57) Blue Black Transformer Blk/Wht Yellow Blk/Wht (23) Violet (1) Pink (5) Legend L1 Factory low voltage wiring Factory line voltage wiring Field low voltage wiring Field line voltage wiring Optional block Internal junction Quick connect terminal Wire nut Field wire lug Ground T Relay Contacts- N.O., N.C. Thermistor - Johnson Control Relay coil P Switch - High pressure Switch - Low pressure Polarized connector Condensate Overflow AP - Air Proving CC1 - Compressor contactor 1 CC2 - Compressor contactor 2 CO - Condensate overflow CPM1 - Compressor Protection Module 1 CPM2 - Compressor Protection Module 2 DA - Discharge Air Temperature ES - Emergency Shutdown FP1 - Freeze protection sensor 1 FP2 - Freeze protection sensor 2 Notes: HP1 - Stage 1 High Pressure HP2 - Stage 2 High Pressure LP1 - Stage 1 Low Pressure LP2 - Stage 2 Low Pressure OS - Occupied Switch RB - Blower power relay RV1 - Reversing Valve coil 1 RV2 - Reversing Valve coil R, C, Y1, Y2, O, and G are for use with a wall mounted thermostat 2 - Disconnect for 15 degree freeze protection 3 - Acc 1 output is cycled with the compressor 4 - Acc 2 output is cycled with the fan 97P /17/06 27

27 Optional FX10 Microprocessor Control FX10 Control Overview The FX10 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 FX10 in a class of its own. The control will enumerate all fault conditions (HP, LP, CO, LOC, and Freeze Detection) over a BAS as well as display them on a medium user interface (MUI). HP, LP, CO and Freeze Detection faults can all be reset over a BAS. A Loss Of Charge 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 ECM2.3 variable blower speed settings can be changed over a BAS or with a MUI. The control has an output programmed to enable emergency heat in the event that the compressor is locked out. This output 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 humidity sensor and displayed over the network and if you are using an ECM2.3 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. The FX10 control has unused analog and digital inputs for field installed items such as air temperature, water temperature, or current status switches. The control has unused binary and PWM outputs that can be commanded over the BAS for field use. Main FX 10 Board An optional Medium User Interface (MUI) for control setup and advanced diagnostics is available with some mounting kits, MUIK1 - Panel mount version and the MUIK2-Wall mount version. Standard Features Anti Short Cycle High Pressure Protection Low Pressure Protection Freeze Detection Loss Of Charge Detection Random Start Display for diagnostics Reset Lockout at disconnect or through BAS 2 Accessory outputs Optional DDC control add-on DDC Operation and Connection Other optional network protocol boards that can be added to the FX10 are: Johnson Control N2 BACnet LonWorks Control 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. Lockout Mode Lockout mode can be activated by any of the following fault signals: refrigerant system high pressure, refrigerant system low pressure, heating 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 Compressor 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-3) 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 ESC and Return keys on the MUI for 5 seconds. 28

28 Optional FX10 Microprocessor Control cont. 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 detectopm trip point will be factory set for 30 F and will be field selectable for 15 F 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 a Water Low Temp Limit fault. High Pressure (BI-11) The high-pressure switch shall be a normally closed (NC) 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 high-pressure switch opens. The compressor will not restart until the compressor short cycle time delay has been satisfied. Low Pressure (BI-3) The low-pressure switch shall be a normally closed (NC) switch that monitors the systems refrigerant pressure. The input shall be checked 15 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 (30) 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. 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. Test Mode Raising the zone temperature input (AI-1) reading to degrees F or by holding the ESC 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 LCD display when the control is in test mode. Test mode will be disabled after a power cycle, 30 minute timeout, or by holding the ESC and Up arrow keys on the MUI. 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 1 second and not longer than 120 seconds. If the control is in test mode the random start delay will be shortened to 5 seconds. Compressor Fixed On Delay Time The Compressor Fixed On Delay Time will ensure that the compressor output (B02) is not enabled for (90) seconds after the control receives a call to start the compressor. This delay is adjustable from seconds over a BAS or a MUI. If the control is in test mode the Compressor Fixed On Delay Timer will be shortened to 5 seconds. Compressor Minimum On Delay The compressor minimum on delay will ensure that the compressor output is enabled for a minimum of (2) minute each time the compressor output is enabled. This will apply in every instance except in the event the high pressure switch is tripped or emergency shutdown then the compressor output will be disable immediately. Compressor Short Cycle Delay Time The compressor short cycle time delay will ensure that the compressor output will not be enabled for a minimum of (5) minutes after it is disabled. This allows for the system refrigerant pressures to equalize after the compressor is disabled. Heating Cycle On a call for heating, the blower enable output and accessory output 2 will turn on immediately after the random start delay timer has been satisfied. If the compressor short cycle time delay has been satisfied, the compressor will turn on after the blower enable and accessory output 2 are on and the fixed compressor start delay timers have been satisfied. Set Point Control Mode In set point control mode the reversing valve output will be disabled. As the temperature drops below the heating set point and begins to operate in the heating proportional band, the low capacity compressor output (BO-2) will be enabled. A PID loop in the programming of the control will determine when the full capacity compressor output (BO-4) is to be enabled. The compressor must be operating in low capacity for a minimum of 30 seconds before the full capacity 29

29 Optional FX10 Microprocessor Control cont. compressor output can be enabled. During low capacity compressor operation the ECM2.3 blower will operate in medium speed and will operate in high speed when the compressor is operating at full capacity. Thermostat Control Mode In thermostat mode the compressor will be cycled based on Y1 and Y2 calls from a room thermostat. When the control receives a Y1 command (BI-7) from the thermostat the low capacity compressor output (BO2) will be enabled and the ECM2.3 blower will operate in medium speed. When the control receives a Y2 command (BI-8) from the thermostat the full capacity compressor output will be enabled and the ECM2.3 blower will operate in high speed. During the heating cycle the reversing valve will be commanded into the off position. Cooling Cycle On a call for cooling, the blower enable output and accessory output 2 will turn on immediately after the random start delay timer has been satisfied. If the compressor short cycle time delay has been satisfied, the compressor will turn on after the blower enable and accessory output 2 are on and the fixed compressor start delay timers have been satisfied. Network Enabled Output/ Electric Heat Output (BO-5) This output can be enabled by the BAS network for use as needed in the field. There is a soft switch in the application that can be enabled through the BAS or MUI that will allow this output to be used for auxiliary electric heat. A second soft switch is available that can be enabled through the BAS or MUI that will interlock this output with the blower proving input (BI-6) for operating electric heat. If the blower proving input is open when the interlock is enabled, the Electric Heat Output (BO-5) will be immediately disabled. If this output is enabled for electric heat then it shall be used as a backup for the compressor in the event that a compressor fault occurs during heating operation. MUI Alarm History Reporting If a fault occurs the fault will be recorded in history for display on the medium user interface in the History Menu. Each fault type will be displayed in the history menu with a number between 0 and 3. A reading of 3+ will mean that fault has occurred more than three times in the past. The history menu can be cleared with a power cycle only. Alarm date and time are not included in the history. ECM2.3 Blower Operation Blower speeds will be selected through the user interface or the facility management system. There will be a total of 12 speeds selectable with only three being selected at any one time. The lowest numbered speed selection set to ON will select the lowspeed blower setting, the middle selection set to ON will select the medium-speed blower setting and the highest selection set to ON will select the high-speed blower setting. If all selections are set to OFF the software shall select speed setting 10 for low-speed, 11 for medium-speed, and will select speed setting 12 for high speed. If only one selection is set to ON, that selection will set the lowspeed blower setting, the medium-speed setting will be 11, and the high-speed setting will be speed 12. The maximum low-speed setting will be speed 10 and the minimum high-speed setting will be speed 3. In addition there is a low limit setting in the software to prevent the ECM2.3 blower speed from being set below acceptable limits for each unit size. 30

30 Optional FX10 Microprocessor Control cont. FX10 User Interface (MUI) Physical Layout Power LED Alarm LED Up Arrow Right Arrow LED 1 LED 4 Escape (ESC) Button Return Button LED 8 Left Arrow Down Arrow Alarm LED - Indicates a Lock-Out or a bad Freeze Sensor Power LED - Shows FX processor is operational LED 1 - Flashing shows Compressor 1 running LED 2 - Flashing shows Full Capacity Compressor running LED 3 - On shows Fan running LED 4 - On shows Reversing Valve in cool LED 8 - Flashing shows unit in Test Mode MUI Menu Navigation for Single Compressor - G Series Water-to-Air Welcome Info Status Temps Outputs Settings Maint Alarms Alm-History Info Status Temps Outputs Settings PROFXENV-XX 3/8/07 Run Mode Auto Eff Occup y Occ Y1 Input OFF Y2 Input OFF G Input OFF O Input OFF Occ Input Occ Temp Occ Inp OFF Condensate NML Emg Input Run Lo Press ON Hi Press ON Rndm Tmr 0 BI-4 Input OFF Zone Temp 77.2 ºF Dis Air Temp 51.0 ºF Eff Clg Setpt 70.0 F Eff Htg Setpt 66.0 F Water Coil 77.8 F Low WC Limit 30.0 F Humidity 56.7 %RH WarmCool AI 14.6 WarmCoolAdj 0.2 nvofanstatus ON CmpCmd Status OFF Cmp Capacity OFF Rev Valve Heat X1 Output OFF X2 Output OFF PWMOut 98% BO5 OFF BO9 OFF AO2 Output 0% Unit of Measure F Occ Clg Setpt 73.9 ºF Occ Htg Setpt 69.9 ºF Unocc Clg 84.0 ºF Unocc Htg 60.0 ºF DeHumSetpt 0% SensorSelect TAXXJ02 31