Legend Series Installation Manual

ESIDENTIAL Geothermal/Water Source Heat Pump -410A efrigerant 2-6 Tons Installation Information Water Piping onnections Hot Water Generator onnections Legend Series Installation Manual Electrical Startup Procedures Troubleshooting Preventive Maintenance IM1100AL 06/11

LEGEND INSTALLATION MANUAL Table of ontents Model Nomenclature.... 4 General Installation Information... 5-8 Water Quality... 9 Freeze Detection... 9 ondensate Drain... 10 losed Loop Ground Source Systems... 10 Open Loop Ground Water Systems...11 Hot Water Generator onnections... 12-13 Electrical onnections... 14 Electronic Thermostat Installation... 14 Antifreeze orrections... 15 Auxiliary Heat atings... 15 Electrical Data... 16 Blower Performance Data... 17-18 X13 EM onstant Torque Motors.... 19 Vertical Dimensional Data... 20-22 Physical Data... 23 Wiring Schematics.... 24-27 ontrols.... 28-29 Unit Startup...30 Troubleshooting.... 31 Startup/Troubleshooting Form... 32 Operating Parameters.... 33 Operating Limits... 33 Pressure Drop....34 ompressor and Thermistor esistance...34 efrigerant ircuit Guideline...34 Heat of Extraction/ejection.... 35 eference alculations... 35 Legend and Notes... 35 Preventive Maintenance and eplacement Procedures.... 36 Service Parts.... 37-38

esidential Model Nomenclature 1 2 3 L S V 4-6 048 7 B 8 1 9 1 10 4 11 12 T 13 L Model Type L = Legend ompressor Type S = Single Speed abinet onfiguration V = Vertical H = Horizontal Unit apacity Vintage A = 024-042 and 070 B = 048 and 060 Voltage 1 = 208-230/60/1 NOTE: All models include sound kits as standard equipment. eturn Air onfiguration L = Left = ight Discharge Air onfiguration T = Top S = Side E = End oax Option = opper N = upronickel Fan Option 0 = PS 3 = Oversized PS (024-030, 042-048) 4 = X13 EM Hot Water Options 0 = No Hot Water Generation, No IntelliStart TM 1 = Hot Water Generation with factory installed pump, No IntelliStart 3 = No Hot Water Generation, IntelliStart 4 = Hot Water Generation with factory installed pump, IntelliStart 4

General Installation Information Safety onsiderations WANING: 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 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. Vertical units are available in left or right air return configurations. Top air discharge 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. 2 Extruded Polystyrene Vertical Unit Mounting 5

General Installation Information cont. Installing Horizontal Units emove and discard the compressor hold down shipping bolt located at the front of the compressor mounting bracket prior to setting the unit in place. Horizontal units are available with side or end discharge. Horizontal units are normally suspended from a ceiling by four or six 3/8- inch diameter threaded rods. The rods are usually attached to the unit by hanger bracket kits furnished with each unit. Some residential 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. Lay out the threaded rods per the Hanger Dimensions table. Assemble the hangers to the unit as shown on page 7. 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. To allow filter access, one bracket on the filter side should be installed 180 from the position shown in the figure on page 7. The unit should be pitched approximately 1/4- inch 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. AUTION: Do not use rods smaller than 3/8- inch diameter since they may not be strong enough to support the unit. The rods must be securely anchored to the ceiling. Horizontal Unit Mounting Flexible Duct ollar Insulate supply plenum and use O at least one 90 elbow to reduce noise Threaded ods To Line Power Hanging Brackets (Included) Hose Kits To Thermostat Electrical Disconnect Line Voltage Building Water Loop Ball Valves 6

General Installation Information cont. Unit Hanger Dimensions B B D A A Unit Hanger Detail LSH024 - LSH036 Unit Hanger Detail LSH042 - LSH070 3/8 Threaded od (not supplied) Vibration Isolator Washer Bolt and Lockwasher Hex Nuts (not supplied) Horizontal Unit Hanger Dimensions Models A B D 024-036 in. 21.1 63.4 24.8 - cm. 53.6 161.0 63.0-042-048 in. 24.1 43.1 27.8 29.3 cm. 61.2 109.5 70.6 74.4 060 in. 24.1 48.1 27.8 29.3 cm. 61.2 122.2 70.6 74.4 070 in. 24.1 53.1 27.8 29.3 cm. 61.2 134.9 70.6 74.4 orner Weight Locations Horizontal orner Weights Model Post #1 Post #2 Post #3 Post #4 Total 024 lb 35 119 81 33 268 kg [16] [54] [37] [15] [122] 030 lb 38 122 86 33 279 kg [17] [55] [39] [15] [127] 036 lb 40 124 88 35 287 kg [18] [56] [40] [16] [130] 042 lb 63 147 87 52 349 kg [29] [67] [39] [24] [158] 048 lb 64 152 89 53 358 kg [29] [69] [40] [24] [162] 060 lb 93 156 81 73 403 kg [42] [71] [37] [33] [183] 070 lb 143 137 124 34 438 kg [65] [62] [56] [15] [199] 10/28/09 orner 3 orner 4 orner 2 orner 1 7

General Installation Information cont. Duct System An air outlet collar is provided on vertical top air discharge 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. Tighten the connectors by hand, then gently snug the fitting with pliers to provide a leak-proof joint. When connecting to an open loop (ground water) system, thread any 1-inch MPT fitting (SH80 PV or copper) into the swivel connector and tighten in the same manner as noted above. The open and closed loop piping system should include pressure/temperature taps for serviceability. Never use flexible hoses smaller than 1-inch inside diameter on the unit. Limit hose length to 10 feet per connection. heck carefully for water leaks. Swivel onnections 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. AUTION: Be sure to remove the shipping material from the blower discharge before connecting ductwork. Stainless Steel Snap ing Gasket Material Locking ing Gasket Support Sleeve 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 residential units are swivel piping fittings (see Swivel onnections figure) that accept a 1-inch male pipe thread (MPT). The swivel connector has a rubber gasket seal similar to a rubber hose gasket, which when mated to the flush end of any 1-inch threaded pipe provides a leak-free seal without the need for thread sealing tape or compound. heck to ensure that the rubber seal is in the swivel connector prior to attempting any connection. The rubber seals are shipped attached to the waterline. To make the connection to a ground loop system, mate the brass connector (supplied in K4L connector kit) against the rubber gasket in the swivel connector and thread the female locking ring onto the pipe threads, while maintaining the brass connector in the desired direction. 8

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. 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. Failure to adhere to the guidelines in the water quality table could result in the loss of warranty. Material opper 90/10 upro-nickel 316 Stainless Steel ph Acidity/Alkalinity 7-9 7-9 7-9 Scaling alcium and Magnesium arbonate (Total Hardness) less than 350 ppm (Total Hardness) less than 350 ppm (Total Hardness) less than 350 ppm Hydrogen Sulfide Less than.5 ppm (rotten egg smell appears at 0.5 PPM) 10-50 ppm Less than 1 ppm Sulfates Less than 125 ppm Less than 125 ppm Less than 200 ppm hlorine Less than.5 ppm Less than.5 ppm Less than.5 ppm hlorides Less than 20 ppm Less than125 ppm Less than 300 ppm arbon Dioxide Less than 50 ppm 10-50 ppm 10-50 ppm Ammonia Less than 2 ppm Less than 2 ppm Less than 20 ppm orrosion Ammonia hloride Less than.5 ppm Less than.5 ppm Less than.5 ppm Ammonia Nitrate Less than.5 ppm Less than.5 ppm Less than.5 ppm Ammonia Hydroxide Less than.5 ppm Less than.5 ppm Less than.5 ppm Ammonia Sulfate Less than.5 ppm Less than.5 ppm Less than.5 ppm Total Dissolved Solids (TDS) Less than 1000 ppm 1000-1500 ppm 1000-1500 ppm LSI Index + 0.5 to -.05 + 0.5 to -.05 + 0.5 to -.05 Iron Fouling Bacterial Iron Potential <.2ppm <.2 ppm <.2 ppm (Biological Growth) Iron Oxide Less than 1 ppm. Above this level Less than 1 ppm. Above this level Less than 1 ppm. Above this level deposition will occur. deposition will occur. deposition will occur. Erosion Suspended Solids Less than 10 ppm and filtered for max of Less than 10 ppm and filtered for max of Less than 10 ppm and filtered for max of 600 micron size 600 micron size 600 micron size Threshold Velocity (Fresh Water) < 6 ft/sec < 6 ft/sec <6 ft/sec Note: Grains = PPM divided by 17 mg/l is equivalent to PPM Freeze Detection Set SW1-2 on the printed circuit board for applications using a closed loop antifreeze solution to LOOP (15 F) [-9.4 ]. On applications using an open loop/ground water system (or closed loop no antifreeze), set this dip switch to WELL (30 F) [-1.1 ], the factory default setting. (efer to the Dip Switch Field Selection table). 9

ondensate Drain On vertical units, the internal condensate drain assembly consists of a drain tube which is connected to the drain pan, a 3/4 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. On horizontal units, a PV stub 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 field-installed condensate piping. Horizontal Drain onnection (omposite Drain Pan) Unit Pitch for Drain 3/4 in. PV oupling Vent (if needed) 3/4 in. PV 1/2'' Pitch 3/4 in. PV tube stub 1.5 in. 1.5 in. 1/8 in. per foot Drain losed Loop Ground Source Systems NOTE: For closed loop systems with antifreeze protection, set SW1-2 to the loop position. losed Loop Ground Source Application Once piping is completed between the unit, pumps and the ground loop, final purging and charging of the loop is required. A flush cart (or a 1.5 HP pump minimum) 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 40-50 PSI (summer) or 50-75 PSI (winter). This is normally adequate for good system operation. Loop static pressure will 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 initially charging the system. Disconnects (If Applicable) Unit Supply Auxiliary Heat Supply GeoLink Polyethylene w/ Armaflex Insulation Flexible Duct ollar Auxiliary Heater Knockout Unit Power Hot Water Generator onnections Drain GeoLink Flow enter TO LOOP After pressurization, be sure to turn the venting (burping) screw in the center of the pump two (2) turns open (water will drip out), wait until all air is purged from the pump, then tighten the plug. Ensure that the loop pumps provide adequate flow through the unit(s) by checking the pressure drop across the heat exchanger and comparing it to the unit capacity data in the specification catalog. 2.5 to 3 GPM of flow per ton of cooling capacity is recommended in earth loop applications. Low Voltage to Thermostat P/T P/T Plugs Vibration Absorbing Pad Insulated piping or hose kit NOTE: Additional information can be found in Flow enter installation manual and Flush art manual. 10

Open Loop Ground 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. 1.5-2 GPM of flow per ton of cooling capacity is recommended in open loop applications. Discharge water from the unit is not contaminated in any manner and can be disposed of in various ways, depending on local codes, i.e. recharge well, storm sewer, drain field, adjacent stream or pond, etc. Most local codes forbid the use of sanitary sewer for disposal. onsult your local building and zoning departments to assure compliance in your area. NOTE: For open loop/groundwater systems or systems that do not contain an antifreeze solution, set SW1-Switch #2 to the WELL position. Slow opening/closing solenoid valves (type VM) are recommended to eliminate water hammer. Open Loop Solenoid Valve onnection Option Typical quick operating external 24V water solenoid valve (type PPV100 or BPV100) wiring. Open Loop Solenoid Valve onnection Option Typical slow operating external 24V water solenoid valve (type VM) wiring and one (1) quick operating valve. SV Violet Violet VM valve Violet -GND Violet -GND Logic Board Logic Board Open System - Groundwater Application Unit Supply Aux. Heat Supply Flexible Duct ollar ubber Bladder Expansion Tank Auxiliary Heater Knockout Hot Water Generator onnections 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) 11

Hot Water Generator onnections The heat reclaiming hot water generator coil is of vented double-wall copper construction and is suitable for potable water. To maximize the benefits of the hot water generator a minimum 50-gallon water heater is recommended. For higher demand applications, use an 80-gallon water heater or two 50-gallon water heaters connected in a series as shown below. Electric water heaters are recommended. Make sure all local electrical and plumbing codes are met for installing a hot water generator. esidential units with hot water generators contain an internal circulator and fittings. A water softener is recommended with hard water (greater than 10 grains or 170 total hardness). Once air has been purged from the water piping circuit, connect the blue wire from the hot water generator pump to T1 on the contactor (unit ships with this wire disconnected). The hot water generator pump will not operate until this wire is connected to the contactor. Water Tank Preparation To install a unit with a hot water generator, follow these installation guidelines. 1. Turn off the power to the water heater. 2. Attach a water hose to the water tank drain connection and run the other end of the hose to an open drain or outdoors. 3. lose the cold water inlet valve to the water heater tank. 4. Drain the tank by opening the valve on the bottom of the tank, then open the pressure relief valve or hot water faucet. 5. Flush the tank by opening the cold water inlet valve to the water heater to free the tank of sediments. lose when draining water is clear. 6. Disconnect the garden hose and remove the drain valve from the water heater. 7. efer to Plumbing Installation and Hot Water Generator Startup. AUTION: Elements will burn out if energized dry. Typical Hot Water Generator Installation Hot Water Generator Installation In Preheat Tank 3/4 in. x 3/4 in. x 1/2 in. Tee old Water In Hot Water Out old Water In Hot Water Out Ball Valve Vent 3/4 in. x 3/4 in. x 1/2 in. Tee Ball Valve Vent HWG Water Out P/T elief Valve HWG Water Out P/T elief Valve P/T elief Valve In In HWG Water In Drain Valve HWG Water In Drain Valve Drain Valve NOTE: This configuration maximizes hot water generator capability. 12

Hot Water Generator onnections cont. Plumbing Installation 1. Inspect the dip tube in the water heater cold inlet for a check valve. If a check valve is present it must be removed or damage to the hot water generator circulator will occur. 2. emove drain valve and fitting. 3. Thread the 3/4-inch NPT x 3-1/2-inch brass nipple into the water heater drain port. 4. Attach the center port of the 3/4-inch FPT tee to the opposite end of the brass nipple. 5. Attach the 1/2-inch copper to 3/4-inch NPT adaptor to the side of the tee closest to the unit. 6. Install the drain valve on the tee opposite the adaptor. 7. un interconnecting tubing from the tee to DHW water out. 8. ut the cold water IN line going to the water heater. 9. Insert the reducing solder tee in line with cold water IN line as shown. 10. un interconnecting copper tubing between the unit DHW water IN and the tee (1/2-inch nominal). The recommended maximum distance is 50 feet. 11. To prevent air entrapment in the system, install a vent coupling at the highest point of the interconnecting lines. 12. Insulate all exposed surfaces of both connecting water lines with 3/8-inch wall closed cell insulation. NOTE: All plumbing and piping connections must comply with local plumbing codes. Hot Water Generator Startup 1. Make sure the power is off to the heat pump. onnect the blue wire from the hot water generator pump to T1 on the contactor (unit ships with this wire disconnected). The hot water generator pump will not operate until this wire is connected to the contactor. 2. lose the drain valve to the water heater. 3. Open the cold water supply to the tank. 4. Open a hot water faucet in the building to bleed air from the system. lose when full. 5. Open the pressure relief valve to bleed any remaining air from the tank, then close. 6. If so equipped, turn the venting (burping) screw in the center of the pump two (2) turns open (water will drip out), wait until all air is purged from the pump, then tighten the plug. Use vent couplings to bleed air from the lines. 7. arefully inspect all plumbing for water leaks and correct as required. 8. Before restoring electrical supply to the water heater, adjust the temperature setting on the tank. On tanks with both upper and lower elements, the lower element should be turned down to the lowest setting, approximately 100 F. The upper element should be adjusted to 120 F to 130 F. Depending upon the specific needs of the customer, you may want to adjust the upper element differently. On tanks with a single element, lower the thermostat setting to 120 F. 9. After the thermostat(s) is adjusted, replace the access cover and restore electrical supply to the water heater. 10. Make sure that any valves in the hot water generator circuit are open. 11. Turn on the unit to heating. 12. The DHW pump should be running. When the pump is first started, turn the venting (burping) screw (if equipped) in the center of the pump two (2) turns open until water dribbles out, then replace. Allow the pump to run for at least five minutes to ensure that water has filled the circulator properly. 13. The temperature difference between the water entering and leaving the hot water generator should be 2 F to 15 F. The water flow should be approximately 0.4 GPM per ton of nominal cooling. 14. Allow the unit to heat water for 15 to 20 minutes to be sure operation is normal. AUTION: Never operate the DHW circulating pump while dry. If the unit is placed in operation before the hot water generator piping is connected, be sure that the pump wires are disconnected from the contactor. 13

Electrical onnections 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 ode, whichever is applicable. Unit Power onnection onnect the incoming line voltage wires to L1 and L2 of the contactor as shown below for single-phase unit. onsult the unit s Electrical Data for correct fuse sizes. 208 Volt Operation All Legend 208/230 units are factory wired for 230 volt operation. For 208 volt operation, the red and blue transformer wires must be switched on terminal strip PS. Pump Wiring See Pump Wiring figure below for electrical connections from control box to pumps. Open lower front access panel. Insert power wires through knockouts on lower left side of cabinet. oute wires through left side of control box and connect to contactor and ground. lose lower front access panel before unit start-up. Line Voltage 208-230/60/1 ontrol Box Pump Wiring 208-230/60/1 Loop Pump Power Ground Ground L2 L1 PS 3 1 2 Line Voltage PS 3 1 2 Thermostat onnections TB TB Electronic Thermostat Installation Position the thermostat subbase against the wall so that it is level and the thermostat wires protrude through the middle of the subbase. Mark the position of the subbase mounting holes and drill holes with a 3/16-inch bit. Install supplied anchors and secure base to the wall. Thermostat wire must be 8-conductor, 18-AWG wire. Strip the wires back 1/4-inch (longer strip lengths may cause shorts) and insert the thermostat wires into the connector as shown. Tighten the screws to insure secure connections. The thermostat has the same type connectors, requiring the same wiring. See instructions enclosed in the thermostat for detailed installation and operation information. Thermostat Wiring Thermostat Y1 O G L W Terminal Block (TB) 24VA (Hot) 24VA (ommon) ompressor Y1 eversing Valve O Blower elay G System Monitor L Aux. Heat W1 14

Antifreeze orrections atalog performance can be corrected for antifreeze use. Please use the following table and note the example given. Antifreeze Type Antifreeze % by wt ooling apacity Heating apacity Pressure Drop Antifreeze orrection Example Antifreeze solution is Propylene Glycol 20% by weight. Determine the corrected heating and cooling performance at 30 F and 90 F respectively as well as pressure drop at 30 F for a Legend Series LS*024-PS. The corrected cooling capacity at 90 F would be: 24,500 MBtuh x 0.969 = 23,741 MBtuh The corrected heating capacity at 30 F would be: 19,000 MBtuh x 0.913 = 17,347 MBtuh The corrected pressure drop at 30 F and 6 GPM would be: 10.5 feet of head x 1.270 = 13.34 feet of head EWT - degf [Deg] 90 [32.2] 30 [-1.1] 30 [-1.1] Water 0 1.000 1.000 1.000 10 0.991 0.973 1.075 20 0.979 0.943 1.163 Ethylene Glycol 30 0.965 0.917 1.225 40 0.955 0.890 1.324 50 0.943 0.865 1.419 10 0.981 0.958 1.130 20 0.969 0.913 1.270 Propylene Glycol 30 0.950 0.854 1.433 40 0.937 0.813 1.614 50 0.922 0.770 1.816 10 0.991 0.927 1.242 20 0.972 0.887 1.343 Ethanol 30 0.947 0.856 1.383 40 0.930 0.815 1.523 50 0.911 0.779 1.639 10 0.986 0.957 1.127 20 0.970 0.924 1.197 Methanol 30 0.951 0.895 1.235 40 0.936 0.863 1.323 50 0.920 0.833 1.399 Warning: Gray area represents antifreeze concentrations greater than 35% by weight and should be avoided due to the extreme performance penalty they represent. Auxiliary Heat atings Model KW BTU/H Min Legend Series ompatibility 208V 230V Stages 208V 230V FM 024-036 042 048-070 EAM(H)5 3.6 4.8 1 12,300 16,300 450 EAM(H)8 5.7 7.6 1 19,400 25,900 550 EAM(H)10 7.2 9.6 1 24,600 32,700 650 EAL(H)10 7.2 9.6 1 24,600 32,700 1100 EAL(H)15 10.8 14.4 1 36,900 49,100 1250 EAL(H)20 14.4 19.2 1 49,200 65,500 1500 9/18/09 Model Supply ircuit Heater Amps Min ircuit Amp Max Fuse (USA) Max Fuse (AN) Max KT BK 208 V 240 V 208 V 240 V 208 V 240 V 208 V 240 V 208 V 240 V EAM(H)5 Single 17.3 20 26.7 30 30 30 30 30 30 30 EAM(H)8 Single 27.5 31.7 39.3 44.6 40 45 40 45 40 50 EAM(H)10 Single 34.7 40 48.3 55 50 60 50 60 50 60 EAL(H)10 Single 34.7 40 53.3 60 60 60 60 60 60 60 Single 52.0 60 75 85 80 90 80 90 70 100 EAL(H)15 L1/L2 34.7 40 53.3 60 60 60 60 60 60 60 L3/L4 17.3 20 21.7 25 25 25 25 25 20 30 Single 69.3 80 96.7 110 100 110 100 110 100 100 EAL(H)20 L1/L2 34.7 40 53.3 60 60 60 60 60 60 60 L3/L4 34.7 40 43.3 50 45 50 45 50 40 50 All heaters rated single phase 60 cycle and include unit blower load. All fuses type D time delay (or HA circuit breaker in USA) Wire length based on one-way measurement with 2% voltage drop Wire size based on 60 (*90 ) copper conductor H is used in part numbers for horizontal units 9/18/09 15

Electrical Data Legend with PS Motor Model ompressor Model No. ated Voltage Voltage Min/Max HA circuit breaker in USA only * With optional high-static PS motor ** With optional IntelliStart TM, only available on 208-230/60/1 NOTE: High-static option not available on 036, 060, and 070 model sizes. ompressor M LA LA LA** HWG Pump FLA Ext Loop FLA Blower Motor FLA 024 ZP20K5E-PFV 208-230/60/1 187/253 21.0 13.5 58.3 21.0 0.4 5.4 1.2 20.5 23.9 35 024* ZP20K5E-PFV 208-230/60/1 187/253 21.0 13.5 58.3 21.0 0.4 5.4 1.5 20.8 24.2 35 030 ZP25K5E-PFV 208-230/60/1 187/253 22.0 14.1 73.0 26.0 0.4 5.4 1.5 21.4 24.9 35 030* ZP25K5E-PFV 208-230/60/1 187/253 22.0 14.1 73.0 26.0 0.4 5.4 2.2 22.1 25.6 35 036 HH029U1LP6 208-230/60/1 187/253 27.0 17.3 96.7 34.0 0.4 5.4 2.2 25.3 29.6 45 042 HH034U1LP6 208-230/60/1 187/253 31.0 20.0 115.0 41.0 0.4 5.4 3.5 29.3 34.3 50 042* HH034U1LP6 208-230/60/1 187/253 31.0 20.0 115.0 41.0 0.4 5.4 4.6 30.4 35.4 50 048 HH040U1LP6 208-230/60/1 187/253 32.0 21.0 115.0 41.0 0.4 5.4 3.5 30.3 35.6 50 048* HH040U1LP6 208-230/60/1 187/253 32.0 21.0 115.0 41.0 0.4 5.4 4.6 31.4 36.7 50 060 HH051U1LP6 208-230/60/1 187/253 41.0 26.3 150.0 53.0 0.4 5.4 5.9 38.0 44.6 70 070 HH056U1LP6 208-230/60/1 187/253 47.0 30.1 145.0 51.0 0.4 5.4 5.9 41.8 49.3 70 Legend with X13 EM Motor Model ompressor Model No. ated Voltage Voltage Min/Max HA circuit breaker in USA only ** With optional IntelliStart TM, only available on 208-230/60/1 ompressor M LA LA LA** HWG Pump FLA Ext Loop FLA Blower Motor FLA 024 ZP20K5E-PFV 208-230/60/1 187/253 21.0 13.5 58.3 21.0 0.4 5.4 4.1 23.4 26.8 40 030 ZP25K5E-PFV 208-230/60/1 187/253 22.0 14.1 73.0 26.0 0.4 5.4 4.1 24.0 27.5 40 036 HH029U1LP6 208-230/60/1 187/253 27.0 17.3 96.7 34.0 0.4 5.4 4.1 27.2 31.5 45 042 HH034U1LP6 208-230/60/1 187/253 31.0 20.0 115.0 41.0 0.4 5.4 7.6 33.4 38.4 50 048 HH040U1LP6 208-230/60/1 187/253 32.0 21.0 115.0 41.0 0.4 5.4 7.6 34.4 39.7 60 060 HH051U1LP6 208-230/60/1 187/253 41.0 26.3 150.0 53.0 0.4 5.4 7.6 39.7 46.3 70 070 HH056U1LP6 208-230/60/1 187/253 47.0 30.1 145.0 51.0 0.4 5.4 7.6 43.5 51.0 80 Total Unit FLA Total Unit FLA Min irc Amp Min irc Amp Max Fuse/ HA 1/12/10 Max Fuse/ HA 10/20/09 16

Blower Performance Data - PS Standard PS Motor Model 024 030 036 042 048 060 070 Blower Blower Motor Airflow (cfm) at External Static Pressure (in. wg) Spd Size HP 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 0.70 0.80 0.90 1.00 H 1065 1045 1030 1005 975 950 925 900 870 835 800 - - - - - M 9 x 7 1/5 880 865 850 830 815 795 775 750 725 700 670 - - - - - L 805 790 780 765 745 725 710 685 660 630 600 - - - - - H 1120 1100 1070 1050 1040 1030 1020 1010 1000 980 830 - - - - - M 9 x 7 1/3 1020 1000 980 960 920 880 860 840 820 790 - - - - - - L 860 850 840 830 810 800 780 760 740 710 - - - - - - H 1360 1340 1320 1290 1260 1220 1185 1130 1080 1045 1010 910 855 - - - M 9 x 7 1/2 1205 1190 1170 1145 1120 1085 1050 1015 980 940 900 845 - - - - L 1070 1060 1050 1035 1020 995 970 940 910 875 840 780 - - - - H 1705 1685 1665 1645 1625 1595 1565 1530 1500 1450 1405 1260 1140 - - - M 10 x 10 1/2 1485 1475 1465 1445 1430 1410 1390 1350 1315 1260 1210 1110 1010 - - - L 1180 1165 1150 1135 1120 1090 1060 1030 1000 965 920 855 - - - - H 1930 1910 1885 1860 1830 1790 1750 1710 1665 1620 1580 1280 1235 - - - M 10 x 10 1/2 1580 1565 1550 1535 1525 1505 1485 1445 1410 1310 1215 1130 1030 - - - L 1180 1170 1160 1140 1120 1100 1080 1050 1020 970 930 875 - - - - H 2360 2330 2300 2270 2240 2215 2190 2160 2130 2095 2060 1985 1920 1855 - - M 11 x 10 1 2165 2130 2095 2070 2050 2030 2010 1985 1965 1930 1900 1850 1775 1700 - - L 1965 1940 1920 1900 1885 1870 1855 1825 1800 1780 1760 1720 1625 1530 - - H 2450 2435 2420 2395 2370 2340 2310 2280 2250 2225 2200 2040 2000 1950 - - M 11 x 10 1 2215 2190 2170 2155 2140 2120 2095 2070 2045 2015 1990 1940 1876 1795 - - L 2005 1990 1975 1960 1950 1940 1925 1910 1890 1865 1845 1780 1710 1565 - - 11/13/09 Factory settings are in Bold Air flow 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 0.03 in. wg, 300 fpm by 0.08 in. wg, 400 fpm by 0.12 in. wg. and 500 fpm by 0.16 in. wg. Optional High Static PS Motor Model 024 030 042 048 Blower Blower Motor Airflow (cfm) at External Static Pressure (in. wg) Spd Size HP 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 0.70 0.80 0.90 1.00 H 1120 1100 1070 1050 1040 1030 1020 1010 1000 980 830 - - - - - M 9 x 7 1/3 1020 1000 980 960 920 880 860 840 820 790 - - - - - - L 860 850 840 830 810 800 780 760 740 710 - - - - - - H 1340 1320 1300 1270 1240 1200 1160 1115 1070 1025 985 880 - - - - M 9 x 7 1/2 1185 1175 1165 1130 1095 1065 1035 1000 965 920 880 795 - - - - L 1050 1040 1030 1015 1000 980 960 925 895 855 815 - - - - - H 2095 2080 2060 2020 1980 1950 1920 1880 1840 1780 1725 1550 1335 1120 - - M 10 x 10 3/4 1960 1940 1920 1890 1865 1830 1800 1760 1725 1670 1620 1435 1300 - - - L 1800 1780 1760 1740 1725 1695 1670 1625 1585 1525 1465 1300 1200 - - - H 2095 2080 2060 2020 1980 1950 1920 1880 1840 1780 1725 1550 1335 1120 - - M 10 x 10 3/4 1960 1940 1920 1890 1865 1830 1800 1760 1725 1670 1620 1435 1300 - - - L 1800 1780 1760 1740 1725 1695 1670 1625 1585 1525 1465 1300 1200 - - - Factory settings are in Bold 11/4/09 Air flow 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 0.03 in. wg, 300 fpm by 0.08 in. wg, 400 fpm by 0.12 in. wg. and 500 fpm by 0.16 in. wg. Setting Blower Speed - PS AUTION: Disconnect all power before performing this operation. FAN SPEED WIE HIGH MEDIUM LOW PS FAN MOTO BODY 17

Blower Performance Data - X13 EM Model 024 030 036 042 048 060 070 Motor Spd Motor Tap High 5 Blower Size Motor HP Airflow (cfm) at External Static Pressure (in. wg) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 0.70 0.80 0.90 1.00 980 960 940 930 920 905 890 875 860 840 820 800 745 - - - Med High 4 890 878 865 845 825 813 800 785 770 753 735 710 665 - - - Med 3 9 x 7 1/2 830 815 800 788 775 755 735 723 710 690 670 640 600 - - - Med Low 2 780 760 740 703 665 653 640 620 600 585 570 - - - - - Low 1 625 593 560 535 510 495 480 455 430 410 390 - - - - - High 5 1340 1310 1280 1240 1200 1170 1140 1095 1050 1015 980 900 800 - - - Med High 4 1130 1115 1100 1085 1070 1057 1044 1022 1000 970 940 870 780 - - - Med 3 9 x 7 1/2 1030 1005 980 965 950 935 920 900 880 870 860 830 750 - - - Med Low 2 960 945 930 915 900 885 870 855 840 825 810 790 740 - - - Low 1 790 765 740 725 710 690 670 660 650 630 610 580 500 - - - High 5 1370 1345 1320 1285 1250 1220 1190 1158 1125 1085 1045 960 - - - - Med High 4 1265 1253 1240 1220 1200 1175 1150 1120 1090 1053 1015 - - - - - Med 3 9 x 7 1/2 1160 1143 1125 1113 1100 1085 1070 1055 1040 1020 1000 - - - - - Med Low 2 1110 1095 1080 1065 1050 1038 1025 1008 990 980 970 - - - - - Low 1 825 803 780 770 760 740 720 705 690 670 650 - - - - - High 5 1840 1825 1810 1790 1770 1745 1720 1700 1680 1660 1640 1600 1570 1530 1480 - Med High 4 1730 1713 1695 1670 1645 1623 1600 1575 1550 1535 1520 1480 1440 1390 1350 - Med 3 11 x 10 1 1630 1610 1590 1563 1535 1513 1490 1470 1450 1425 1400 1370 1330 1290 - - Med Low 2 1550 1520 1490 1465 1440 1415 1390 1370 1350 1330 1310 1260 1220 1180 - - Low 1 1380 1340 1300 1275 1250 1225 1200 1175 1150 1125 1100 1030 980 820 - - High 5 2060 2045 2030 2015 2000 1970 1940 1925 1910 1890 1870 1830 1800 1750 1740 - Med High 4 1880 1860 1840 1825 1810 1785 1760 1740 1720 1705 1690 1640 1610 1570 1535 - Med 3 11 x 10 1 1790 1770 1750 1730 1710 1685 1660 1640 1620 1600 1580 1550 1510 1460 - - Med Low 2 1670 1650 1630 1605 1580 1555 1530 1510 1490 1470 1450 1410 1370 1340 - - Low 1 1430 1405 1380 1353 1325 1303 1280 1255 1230 1210 1190 1130 1070 925 - - High 5 2400 2360 2330 2315 2300 2290 2285 2275 2265 2250 2230 2200 2165 2110 2080 2030 Med High 4 2180 2160 2140 2130 2120 2105 2090 2075 2060 2045 2030 2000 1960 1930 1890 1850 Med 3 11 x 10 1 2080 2050 2020 2010 2000 1985 1970 1955 1940 1925 1910 1870 1840 1800 1760 1720 Med Low 2 1930 1920 1910 1893 1875 1863 1850 1833 1815 1798 1780 1740 1700 1660 1620 1590 Low 1 1750 1735 1720 1698 1675 1658 1640 1620 1600 1583 1565 1525 1490 1450 1410 1350 High 5 2400 2360 2330 2315 2300 2290 2285 2275 2265 2250 2230 2200 2165 2110 2080 2030 Med High 4 2180 2160 2140 2130 2120 2105 2090 2075 2060 2045 2030 2000 1960 1930 1890 1850 Med 3 11 x 10 1 2080 2050 2020 2010 2000 1985 1970 1955 1940 1925 1910 1870 1840 1800 1760 1720 Med Low 2 1930 1920 1910 1893 1875 1863 1850 1833 1815 1798 1780 1740 1700 1660 1620 1590 Low 1 1750 1735 1720 1698 1675 1658 1640 1620 1600 1583 1565 1525 1490 1450 1410 1350 Factory settings are in Bold 11/13/09 Air flow 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 0.03 in. wg, 300 fpm by 0.08 in. wg, 400 fpm by 0.12 in. wg. and 500 fpm by 0.16 in. wg. ISO/AHI rating point on the LS*070 will require moving the red wire on the motor to high speed (tap 5) and disconnecting the tan wire from tap 5. 18

X13 EM onstant Torque Motors The X13 is a onstant Torque EM motor and delivers air flow similar to a PS but operates as efficiently as an EM Variable Speed Motor. Because it s an EM Motor, the X13 can ramp slowly up or down like the EM Variable Speed Motor. There are 5 possible speed taps available on the X13 motor with #1 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. The G, Y1 and W signals are wired to the motor at the factory. A gray wire is tied to the motor wire bundle for the Y2 signal and can be field connected to the motor if desired. X13 Benefits: - High efficiency - Soft start - 5 speeds with up to 4 speeds on-line - Built in logic allows air flow to change with G, Y1, Y2 and W signals - Super efficient low airflow continuous blower setting (G) 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 G, Y1, 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 X13 motor is powered by 208-230VA but the motor speed is energized by 24VA. X13 EM Motor onnections Power onnection - 3/16 in. quick connects - Line 1 (orange wire) to L, Ground (green wire) to G, Line 2 (for 208V-230V units) to N (brown wire). Signal onnection - 1/4 in. quick connects - ommon to, 24VA to Taps #1-5. Applying 24VA power between any of the motor taps 1-5 (1/4 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 12-33VA. The X13 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 otor 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 X13 speed tap selections are as follows: The blue wire should be placed on the speed tap desired for the (G) continuous blower setting factory wired to Tap 1. The red wire should be placed on the speed tap desired during compressor operation (Y1 signal) factory wired to Tap 3 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 3ht/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. 19

Vertical Dimensional Data U Top P S T Top P U V Q Q V Service Access 2 ft. (61 cm) Left eturn ight eturn Service Access 2 ft. (61 cm) Y X Z Z X Y N M N M W W L K J E H F G L K J E H F G B Left A Front D A Front D B ight 20

Vertical Dimensional Data cont. Vertical Topflow Model A Width Overall abinet Water onnections Electrical onnections B Depth Height D Loop In E Loop Out F HWG In G HWG Out H ondensate Loop Water FPT HWG FPT J K L M N Low Voltage Ext Pump Power Supply 024 in. 22.3 26.3 44.4 1.9 6.9 13.5 16.4 10.2 1 1 5.1 10.8 16.5 5.9 3.3 cm. 56.6 66.8 112.8 4.8 17.5 34.3 41.7 25.9 Swivel Swivel 13.0 27.4 41.9 15.0 8.4 030 in. 22.3 26.3 44.4 1.9 6.9 13.5 16.4 10.2 1 1 5.1 10.8 16.5 5.9 3.3 cm. 56.6 66.8 112.8 4.8 17.5 34.3 41.7 25.9 Swivel Swivel 13.0 27.4 41.9 15.0 8.4 036 in. 22.3 26.3 48.4 1.9 6.9 13.5 16.4 10.2 1 1 5.1 10.8 16.5 5.9 3.3 cm. 56.6 66.8 122.9 4.8 17.5 34.3 41.7 25.9 Swivel Swivel 13.0 27.4 41.9 15.0 8.4 042 in. 25.4 31.4 50.4 2.3 7.3 15.9 18.9 10.6 1 1 6.5 12.2 17.9 5.9 3.3 cm. 64.5 79.8 128.0 5.7 18.4 40.4 48.0 26.9 Swivel Swivel 16.5 31.0 45.5 15.0 8.4 048 in. 25.4 31.4 50.4 2.3 7.3 15.9 18.9 10.6 1 1 6.5 12.2 17.9 5.9 3.3 cm. 64.5 79.8 128.0 5.7 18.4 40.4 48.0 26.9 Swivel Swivel 16.5 31.0 45.5 15.0 8.4 060 in. 25.4 31.4 54.4 2.3 7.3 15.9 18.9 10.6 1 1 6.5 12.2 17.9 5.9 3.3 cm. 64.5 79.8 138.2 5.8 18.5 40.4 48.0 26.9 Swivel Swivel 16.5 31.0 45.5 15.0 8.4 070 in. 25.4 31.4 58.4 2.3 7.3 15.9 18.9 10.6 1 1 6.5 12.2 17.9 5.9 3.3 cm. 64.5 79.8 148.3 5.8 18.5 40.4 48.0 26.9 Swivel Swivel 16.5 31.0 45.5 15.0 8.4 Vertical Topflow Model Discharge onnection duct flange installed (±0.10 in) eturn onnection using std deluxe filter rack (±0.10 in) P Q S T U V W X Y Z Supply Width Supply Depth eturn Depth eturn Height 024 in. 14.0 14.0 6.2 0.8 2.7 2.3 22.0 22.0 1.9 1.0 25.7 cm. 35.6 35.6 15.7 2.0 6.9 5.8 55.9 55.9 4.8 2.5 65.3 030 in. 14.0 14.0 6.2 0.8 2.7 2.3 22.0 22.0 1.9 1.0 25.7 cm. 35.6 35.6 15.7 2.0 6.9 5.8 55.9 55.9 4.8 2.5 65.3 036 in. 14.0 14.0 6.2 0.8 2.7 2.3 22.1 26.1 1.9 1.0 25.7 cm. 35.6 35.6 15.7 2.0 6.9 5.8 56.1 66.3 4.8 2.5 65.3 042 in. 18.0 18.0 6.9 1.1 3.8 1.7 28.1 26.0 2.0 1.0 28.7 cm. 45.7 45.7 17.5 2.8 9.7 4.3 71.4 66.0 5.1 2.5 72.9 048 in. 18.0 18.0 6.9 1.1 3.8 1.7 28.1 26.0 2.0 1.0 28.7 cm. 45.7 45.7 17.5 2.8 9.7 4.3 71.4 66.0 5.1 2.5 72.9 060 in. 18.0 18.0 6.9 1.1 3.8 1.7 28.1 30.0 2.0 1.0 28.7 cm. 45.7 45.7 17.5 2.8 9.7 4.3 71.4 76.2 5.1 2.5 72.9 070 in. 18.0 18.0 6.9 1.1 3.8 1.7 28.1 34.0 2.0 1.0 28.7 cm. 45.7 45.7 17.5 2.8 9.7 4.3 71.4 86.4 5.1 2.5 72.9 ondensate is 3/4 in. PV female glue socket and is switchable from side to front Unit shipped with deluxe 1 in. (field adjustable to 2 in.) duct collar/filter rack extending from unit 3.25 in. and is suitable for duct connection. Discharge flange is field installed and extends 1 in. [25.4 mm] from cabinet 21

Horizontal Dimensional Data Q AA BB Z AA DD W X Left eturn End Discharge S Q V Y B Left eturn Filter Side View DD L K J AA A Left eturn Front View E F G D Z U Q Left eturn Side Discharge View S W M N P T V B ight eturn Side Discharge View K L J FF L K J A ight eturn Front View E F G D Y ight eturn Filter Side View FF H HH U T H Q ight eturn End Discharge M N P EE GG EE GG Unit Hanger Detail LSH024 - LSH036 Unit Hanger Detail LSH042 - LSH070 Left eturn End Discharge Left eturn Side Discharge ight eturn Side Discharge ight eturn End Discharge Horizontal Models 024-036 042-048 060 070 Overall abinet Water onnections Electrical Knockouts A B D E F G H Loop HWG J K L M N P Q Width Depth Height* Loop Loop HWG HWG ond- Wa te r Water Low Ext Power Low Ext Power Elec. In Out In Out ensate FPT FPT Voltage Pump Supply Voltage Pump Supply Heat in. 22.5 63.0 19.2 2.4 7.4 13.4 16.4 0.8 1 1 5.9 13.7 15.7 5.8 11.6 13.6 2.8 cm. 57.2 160.0 48.8 6.1 18.8 34.0 41.7 2.0 Swivel Swivel 15.0 34.8 39.9 14.7 29.5 34.5 7.1 in. 25.5 72.0 21.2 2.2 7.2 15.8 18.8 0.8 1 1 5.9 13.7 15.7 5.8 13.7 15.7 2.5 cm. 64.8 182.9 53.8 5.6 18.3 40.1 47.8 2.0 Swivel Swivel 15.0 34.8 39.9 14.7 34.8 39.9 6.4 in. 25.5 77.0 21.2 2.2 7.2 15.8 18.8 0.8 1 1 5.9 13.7 15.7 5.9 13.7 15.7 2.5 cm. 64.8 195.6 53.8 5.6 18.3 40.1 47.8 2.0 Swivel Swivel 15.0 34.8 39.9 15.0 34.8 39.9 6.4 in. 25.5 82.0 21.2 2.2 7.2 15.8 18.8 0.8 1 1 5.9 13.7 15.7 5.9 13.7 15.7 2.5 cm. 64.8 208.3 53.8 5.6 18.3 40.1 47.8 2.0 Swivel Swivel 15.0 34.8 39.9 15.0 34.8 39.9 6.4 Horizontal Models 024-036 042-048 060 070 Discharge onnection eturn onnection PV Unit Hanger Dimensions duct flange installed (±0.10 in.) using deluxe filter rack option (±0.10 in.) Drain S T U V W X Y Z AA BB DD EE FF GG HH Size Supply Supply eturn eturn Height Depth Height Depth in. 6.5 9.4 10.5 6.5 2.3 5.7 6.5 16.9 30.5 2.2 2.8 1.0 1.0 21.1 63.4 24.8 n/a 3/4 cm. 16.5 23.9 26.7 16.5 5.8 14.5 16.5 42.9 77.5 5.6 7.1 2.5 2.5 53.6 161.0 63.0 n/a 1.9 in. 4.5 13.4 13.7 4.8 2.8 6.8 7.5 18.7 35.5 2.2 2.8 1.0 1.0 24.1 43.1 27.8 29.3 3/4 cm. 11.4 34.0 34.8 12.2 7.1 17.3 19.1 47.5 90.2 5.6 7.1 2.5 2.5 61.2 109.5 70.6 74.4 1.9 in. 4.5 13.4 13.7 4.8 2.8 6.8 7.5 18.7 40.5 2.2 2.8 1.0 1.0 24.1 48.1 27.8 29.3 3/4 cm. 11.4 34.0 34.8 12.2 7.1 17.3 19.1 47.5 102.9 5.6 7.1 2.5 2.5 61.2 122.2 70.6 74.4 1.9 in. 4.5 13.4 13.7 4.8 2.8 6.8 7.5 18.7 45.5 2.2 2.8 1.0 1.0 24.1 53.1 27.8 29.3 3/4 cm. 11.4 34.0 34.8 12.2 7.1 17.3 19.1 47.5 115.6 5.6 7.1 2.5 2.5 61.2 134.9 70.6 74.4 1.9 ondensate 3/4 in. PV stub extends from cabinet approximately 1.5 in. [38.1 mm]. Unit is shipped with 1 in. filter. The deluxe duct collar/filter fack is field adjustable to accept a 2 in. filter. The duct collar/filter rack extends 3.2 in. from unit, and is suitable for duct connections. Discharge flange extends 1 in. [25.4 mm] from cabinet. 22

Physical Data ompressor (1 each) Model 024 030 036 042 048 060 070 Single Speed Scroll Factory harge 410a, oz [kg] Vertical 52 [1.47] 56 [1.58] 60 [1.70] 74 [2.09] 84 [2.38] 100 [2.83] 104 [2.94] Factory harge 410a, oz [kg] Horizontal 52 [1.47] 56 [1.58] 60 [1.70] 74 [2.09] 84 [2.38] 100 [2.83] 104 [2.94] Blower Motor & Blower Blower Motor Type/Speeds Blower Motor - hp [W] Optional - Oversized Blower Motor - hp [W] Blower Wheel Size (Dia x W), in. [mm] oax and Water Piping X13 PS X13 EM - 5 Speeds PS - 3 Speeds X13 1/2 [373] 1/2 [373] 1/2 [373] 1 [746] 1 [746] 1 [746] 1 [746] PS 1/5 [149] 1/3 [249] 1/2 [373] 1/2 [373] 1/2 [373] 1 [746] 1 [746] X13 Not Available PS 1/3 [249] 1/2 [373] Not Available 3/4 [560] 3/4 [560] Not Available Not Available X13 PS 9 x 7 [229 x 178] 9 x 7 [229 x 178] 9 x 7 [229 x 178] 9 x 7 [229 x 178] 9 x 7 [229 x 178] 9 x 7 [229 x 178] 11 x 10 [279 x 254] 10 x 10 [254 x 254] 11 x 10 [279 x 254] 10 x 10 [254 x 254] 11 x 10 [279 x 254] 11 x 10 [279 x 254] 11 x 10 [279 x 254] 11 x 10 [279 x 254] Water onnections Size - Swivel - in [mm] 1" [25.4] 1" [25.4] 1" [25.4] 1" [25.4] 1" [25.4] 1" [25.4] 1" [25.4] HWG onnection Size - Female Sweat (I.D.) - in [mm] 1/2" [12.7] 1/2" [12.7] 1/2" [12.7] 1/2" [12.7] 1/2" [12.7] 1/2" [12.7] 1/2" [12.7] oax & Piping Water Volume - gal [l].4 [1.4] 0.7 [2.6].7 [2.6].7 [2.7] 1.0 [3.8] 1.3 [4.9] 1.6 [6.1] Vertical Air oil Dimensions (H x W), in. [mm] 24 x 20 [610 x 542] 24 x 20 [610 x 542] 28 x 20 [711 x 542] 28 x 25 [711 x 635] 28 x 25 [711 x 635] 32 x 25 [813 x 635] 36 x 25 [914 x 635] Air oil Total Face Area, ft2 [m2] 3.3 [0.310] 3.3 [0.310] 3.9 [0.362] 4.9 [0.451] 4.9 [0.451] 5.6 [0.516] 6.3 [0.581] Air oil Tube Size, in [mm] 3/8 [9.5] 3/8 [9.5] 3/8 [9.5] 3/8 [9.5] 3/8 [9.5] 3/8 [9.5] 3/8 [9.5] Air oil Number of rows 3 3 3 3 3 3 3 Filter Standard - 1" [24mm] Pleated MEV8 Throwaway, in [mm] 24 x 24 [610 x 610] 24 x 24 [610 x 610] 28 x 24 [712 x 610] 28 x 30 [711 x 762] 28 x 30 [711 x 762] 32 x 30 [813 x 762] 36 x 30 [914 x 762] Weight - Operating, lb [kg] 258 [117] 273 [124] 308 [140] 333 [151] 360 [163] 421 [191] 435 [197] Weight - Packaged, lb [kg] 278 [126] 293 [133] 328 [149] 353 [160] 380 [172] 441 [200] 455 [206] Horizontal Air oil Dimensions (H x W), in. [mm] 18 x 27 [457 x 686] 18 x 27 [457 x 686] 18 x 30 [457 x 762] 20 x 35 [508 x 889] 20 x 35 [508 x 889] 20 x 40 [508 x 1016] 20 x 45 [508 x 1143] Air oil Total Face Area, ft2 [m2] 3.4 [0.316] 3.4 [0.316] 3.9 [0.362] 4.9 [0.451] 4.9 [0.451] 5.6 [0.516] 6.3 [0.581] Air oil Tube Size, in [mm] 3/8 [9.5] 3/8 [9.5] 3/8 [9.5] 3/8 [9.5] 3/8 [9.5] 3/8 [9.5] 3/8 [9.5] Air oil Number of rows 3 3 3 3 3 3 3 Filter Standard - 1" [25mm] Pleated MEV8 Throwaway, in [mm] 1-18 x 32 [457 x 813] 1-18 x 32 [457 x 813] 1-18 x 32 [457 x 813] 1-20 x 37 [686 x 940] 1-20 x 37 [686 x 940] 1-20 x 20 [508 x 508] 1-20 x 22 [508 x 559] 1-20 x 25 [508 x 635] 1-20 x 22 [508 x 559] Weight - Operating, lb [kg] 268 [122] 279 [127] 287 [130] 349 [158] 358 [162] 403 [183] 438 [199] Weight - Packaged, lb [kg] 288 [131] 299 [136] 307 [139] 379 [172] 388 [176] 448 [203] 483 [219] 3/18/11 23

Wiring Schematics 208-230/60/1 PS Grn P3 PS Blower Motor H M L Brn Wht ap 3 Airflow Settings ompressor ap S Blue Tan T2 L2 ed T1 L1 NOTE 3 /White Gray/White B 2 4 5 Unit Power Supply 208-230/60/1 G White NOTE 1 2 1 3 PS Blue 230V Ext Pump 1/2 hp Total 208-230/60/1 Pump G Pump PB1 2 2 1 1 B1 5 A M P Orange T1 L1 T2 B2 5 A M L2 P Brown Drain Water Flow High Press. Low Press. Yellow Air Flow/Fan Status G HW Limit Y HW OFF SW2 ON ed 208V Transformer /White Violet Violet Green G P3 P1 Fan B Gray/White /White Fan OM SW1 On Test Normal Loop Well omm. T-Stat Normal Inputs /Outputs Status Split Mode Normal Y O P2 1-HP 6-HP 2-LP 7-LP 3 8-O 4-V 9-V 5-FP 10-FP G/Y2 LO ES NS LS HP LP Blue Blue O Brown Orange V Orange Yellow T Yellow NOTE 2 FD O L G Y1 W Thermostat O L S G X1 X2 Y1 Yellow ed White Orange Violet Brown Gray/Whte /White Blue W1 TB W2 24

1 2 3 LEGEND SEIES INSTALLATION MANUAL Wiring Schematics cont. 208-230/60/1 PS cont. 2 1 3 PS NOTE 5 Brown Grn Orange Auxiliary Electric Heat Power 208-230/60/1 ircuit 2 ircuit 1 G L2 L1 L2 L1 G With optional Field Installed ' EA' Series Auxiliary Electric Heat Typical schematic shown NOTE 4 P9 1 2 3 5 Brn 4 Or P8 Pink 4 Pink Yel 3 Yel Blk 2 Blk Gray 1 Gray PB2 Normal Mode ontrol Timing Table Event Normal Mode Test Mode Power On Delay 5 minutes 15 seconds ompressor On Delay 10 seconds 2 seconds ompressor Minimum On Time 2 minutes 5 seconds ompressor Short ycle Delay 5 minutes 15 seconds Blower Off Delay 30 seconds 5 seconds Fault ecognition Delay High Pressure Less than 1 second Less than 1 second Start-Up Bypass Low Pressure 2 minutes 0 seconds Fault ecognition Delay Low Pressure 30 seconds 30 seconds Start-Up Bypass Freeze Detection Limit Fault ecognition Delay Freeze Detection Limit Fault ecognition Delay ondensate Overflow 2 minutes 30 seconds 30 seconds 0 seconds 30 seconds 30 seconds Y1 W1 W2 P1 1 2 3 4 Pink Yel Blk Gray E1 NO E2 NO E3 NO Gray P7 Blk 1 2 3 Yel 4 Gray Blk Yel Pink HE1 HE2 HE3 Gray Blk Yel Pink TS1 TS2 TS3 DIP Switch Number Factory Setup DIP Switches (SW1) Description OFF Position Service Test Mode SW1-1 On the control, allows field selection of "NOMAL" or "TEST" operational modes, Test mode accelerates most timing functions 16 times to allow faster troubleshooting. Test mode also allows viewing the "UENT" status of the fault inputs on the LED display. Test Mode SW1-2 Freeze Detection Setting This DIP switch allows field selection of low source water thermistor fault sensing for "WELL" water (30 F) or "LOOP" (15 F) for antifreeze protected earth loops. LOOP (15 F) ON Position Normal Speed Operation WELL (30 F) SW1-3 Not Available N/A Normal Operation I/O Display Mode SW1-4 This DIP switch enables Input/Output Display or Status/urrent Fault on LED Board. Input /Output Status /urrent efer to SW2 for operation and positioning. Display Mode Fault Display Mode SW1-5 Not Available N/A Normal Operation LED Display (On LED Board) urrent Fault or This DIP switch enables Normal Status or Input display mode in the "OFF" position and Status or Inputs SW2 Output Display urrent Fault or Output display mode in the "ON" position. Display Mode Mode TB E4 Pink HE4 TS4 NOTE 5 White Operational Logic Table Mode Inputs Fan omp V Htg Y Auto ON OFF lg Y, O Auto ON ON Fan Only G/Y2 ON OFF OFF P2 P10 1 2 3 4 PS Blower Motor Factory Settings Model Vertical Horizontal 024 Med Med 030 Med Med 036 High High 042 Med Med 048 High High 060 Med Med 070 High High 1 EA Series PB NO DHW Pump Optional Internal Hot Water Generation Pump Hot Water Limit Switch Notes : Blue Blue T2 L2 NOTE 6 T1 L1 1 - Swap blue and red leads for 208V operation 2 - equires common connection or 24 VA for activation 3 - Wires are removed when Auxiliary Heat is installed. 4 - Field supplied Square D part number QOU141100JBAF (jumper bar assembly) should be used for single source power. 5 - Wires are provided with the unit but not connected. 6 - Wire not connected at factory, connect to T1 for HW pump operation. LED Display Mode Table Status Display Mode LED SW1-4 On, SW2 Off Drain Water Flow Drain Pan Overflow Lockout Freeze Detection (Loop <= 15 F, Well <= 30 F) High Press. High Pressure Lockout Low Press. Air Flow Status Low Pressure Lockout Not Used Microprocessor Malfunction* HW Limit Not Used HW SW2 Status (Off=Down Position, On=Up Position) Diagnostic Display Modes urrent Fault Display Mode Inputs Display Mode Outputs Display Mode LED SW1-4 On, SW2 On SW1-4 Off, SW2 Off SW1-4 Off, SW2 On Drain Drain Pan Overflow Lockout Y ompressor Water Flow Freeze Detection Lockout High Press. High Pressure Lockout Low Press. Low Pressure Lockout G O ES Fan eversing Valve ES Air Flow Status HW Limit HW Not Used Not Used Not Used SW2 = On NS LS Not Used SW2 = Off NS LS Not Used SW2 = On * Flashing Status Light Indicates the Board is Functioning Properly. A Solid On Indicates a Board Malfunction. L1 Factory Low Voltage Wiring Factory Line Voltage Wiring Field Low Voltage Wiring Field Line Voltage Wiring Optional Block D Voltage PB Traces Field Zone Sensor Wiring Internal Junction Quick onnect Terminal Field Wiring Lug Ground elay ontacts N.O., N.. B - ircuit Breaker ompressor ontactor O ondensate Overflow Sensor ES Emergency Shutdown HP High Pressure Switch LP Low Pressure Switch FD Freeze Detection Sensor B Blower elay V eversing Valve oil Legend T Thermistor elay oil Switch - ondensate Overflow Switch - High pressure Switch - Low pressure Polarized connector apacitor ircuit Breaker Jumper Wire ES - Emergency Shutdown NS - Night Setback LS - Loadshed Page 1 97P803-01 1/22/10 25

Wiring Schematics cont. 208-230/60/1 X13 EM Ext Pump 1/2 hp Total 208-230/60/1 Pump G X13 Blower Motor Pump L N G PB1 2 2 1 1 Green Orange T1 B1 5 A M P L1 T2 L2 Unit Power Supply 208-230/60/1 Brown Orange Brown B2 5 A M P G ap Blue Tan ompressor S ed T2 T1 NOTE 3 L2 L1 /White Gray/White 2 1 3 PS NOTE 1 Blue 230V 1 2 3 4 5 ed 208V NOTE 5 Transformer 24V Yellow ed Blue /White Tan Gray NOTE 6 Drain Water Flow High Press. Low Press. Air Flow/Fan Status G HW Limit Y HW OFF SW2 ON Green Violet Violet G P3 P1 Fan Fan OM SW1 On Test Normal Loop Well omm. T-Stat Normal Inputs/Outputs Status Split Mode Normal Yellow ed Blue White Brown Y O Orange P2 1-HP 6-HP 2-LP 7-LP 3 8-O 4-V 9-V 5-FP 10-FP G/Y2 LO ES NS LS Violet Blue Blue Brown Orange Orange Yellow Yellow /White Gray/White NOTE 2 HP LP O V T FD TB Y1 O G L S Y2 X1 X2 W1 Y1 O G L W Thermostat Y2 Gray Tan 26

1 2 3 LEGEND SEIES INSTALLATION MANUAL Wiring Schematics cont. 208-230/60/1 X13 EM cont. 2 1 3 PS Y1 W1 W2 TB NOTE 7 NOTE 7 Brown NOTE 4 P9 1 Grn 2 3 5 Orange 4 P1 1 2 3 4 P10 Auxiliary Electric Heat Power 208-230/60/1 ircuit 2 ircuit 1 G Brn Or Pink Blk Yel Gray 1 P2 L2 L1 L2 L1 2 3 4 1 PB2 E1 NO E2 NO E3 NO E4 EA Series PB NO G Pink Yel Blk Gray Blk Yel Gray Pink P8 4 3 2 1 Pink Yel Blk Gray Gray P7 1 2 Blk 3 Yel 4 Pink With optional Field Installed ' EA' Series Auxiliary Electric Heat Typical schematic shown HE1 HE2 HE3 HE4 Gray Blk Yel Pink TS1 TS2 TS3 TS4 DIP Switch Number X13 MOTO LOW VOLTAGE ONNETIONS Model TAP-1 TAP-2 TAP-3 TAP-4 TAP-5 Low Med.Low Medium Med. Hi High 024 BLUE ED TAN 030 BLUE ED TAN 036 BLUE ED TAN 042 BLUE ED TAN 048 BLUE ED TAN 060 BLUE ED TAN 070 BLUE ED TAN WIE OLO BLUE ED GAY TAN ALL G Y1 Y2 W Factory Setup DIP Switches (SW1) Description Notes: DESIPTION FAN 1ST STAGE H/ 2ND STAGE H/ AUXILIAY HEAT OFF Position Service Test Mode SW1-1 On the control, allows field selection of "NOMAL" or "TEST" operational modes, Test mode accelerates most timing functions 16 times to allow faster troubleshooting. Test mode also allows viewing the "UENT" status of the fault inputs on the LED display. Test Mode SW1-2 Freeze Detection Setting LOOP This DIP switch allows field selection of low source water thermistor fault sensing for (15 F) "WELL" water (30 F) or "LOOP" (15 F)for antifreeze protected earth loops. SW1-3 Not Available N/A Normal Operation I /O Display Mode Input/Output Status/urrent SW1-4 This DIP switch enables Input/Output Display or Status/urrent Fault on LED Board. Display Mode Fault Display Mode efer to SW2 for operation and positioning. SW1-5 Not Available N/A Normal Operation SW2 LED Display (On LED Board) Status or Inputs This DIP switch enables Normal Status or Input display mode in the "OFF" position and Display Mode urrent Fault or Output display mode in the "ON" position. ON Position Normal Speed Operation WELL (30 F) urrent Fault or Output Display Mode Operational Logic Table Mode Inputs Fan omp V Htg Y Auto ON OFF lg Y, O Auto ON ON Fan Only G/Y2 ON OFF OFF DHW Pump White Optional Internal Hot Water Generation Pump Hot Water Limit Switch Blue Blue T2 L2 NOTE 8 T1 L1 X13 MOTO BLOWE TABLE TAP-1 TAP-2 TAP-3 TAP-4 TAP-5 MODEL ESP Low Med. Low Medium Med. Hi High (cfm) (cfm) (cfm) (cfm) (cfm) 024 0.3 480 670 740 800 890 030 0.3 680 870 920 1040 1140 036 0.3 720 1020 1070 1150 1190 042 0.5 1100 1310 1410 1520 1640 048 0.5 1190 1450 1580 1690 1870 060 0.5 1540 1750 1880 2010 2210 070 0.5 1560 1790 1900 2030 2230 Normal Mode ontrol Timing Table Event Normal Mode Test Mode Power On Delay 5 minutes 15 seconds ompressor On Delay 10 seconds 2 seconds ompressor Minimum On Time 2 minutes 5 seconds ompressor Short ycle Delay 5 minutes 15 seconds Blower Off Delay 30 seconds 5 seconds Fault ecognition Delay High Pressure Start-Up Bypass Low Pressure Less than 1 second 2 minutes Less than 1 second 0 seconds Fault ecognition Delay Low Pressure 30 seconds 30 seconds Start-Up Bypass Low Water oil Limit Fault ecognition Delay Low Water oil Limit Fault ecognition Delay ondensate Overflow 2 minutes 30 seconds 30 seconds 0 seconds 30 seconds 30 seconds LED Display Mode Table Status Display Mode LED SW1-4 On, SW2 Off Drain Water Flow High Press. Low Press. Air Flow Status Drain Pan Overflow Lockout Freeze Detection (Loop <= 15 F, Well <= 30 F) High Pressure Lockout Low Pressure Lockout Not Used Microprocessor Malfunction* HW Limit Not Used HW SW2 Status (Off=Down Position, On=Up Position) Diagnostic Display Modes urrent Fault Display Mode Inputs Display Mode Outputs Display Mode LED SW1-4 On, SW2 On SW1-4 Off, SW2 Off SW1-4 Off, SW2 On Drain Drain Pan Overflow Lockout Y ompressor Water Flow Low Water oil Limit Lockout High Press. High Pressure Lockout G O Fan eversing Valve Low Press. Air Flow Status HW Limit HW Low Pressure Lockout Not Used Not Used Not Used SW2 = On ES NS LS Not Used SW2 = Off ES NS LS Not Used SW2 = On * Flashing Status Light Indicates the Board is Functioning Properly. A Solid On Indicates a Board Malfunction. 1 - Swap blue and red leads for 208V operation 2 - equires common connection or 24 VA for activation 3 - Wires are removed when Auxiliary Heat is installed. 4 - Field supplied Square D part number QOU141100JBAF (jumper bar assembly) should be used for single source power. 5 - efer to the X13 Motor Low Voltage onnection Table. 6 - Wire is provided with the unit but not connected to the X13 motor. 7 - Wires are provided with the unit but not connected. 8 - Wire not connected at factory, connect to T1 for HW pump operation. L1 Legend 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 Ground elay ontacts N.O., N.. B - ircuit Breaker ompressor ontactor O ondensate Overflow Sensor ES Emergency Shutdown HP High Pressure Switch LP Low Pressure Switch FD Freeze Detection Sensor B Blower elay V eversing Valve oil T Thermistor elay oil Switch - ondensate Overflow Switch - High pressure Switch - Low pressure Polarized connector apacitor ircuit Breaker Jumper Wire ES - Emergency Shutdown NS - Night Setback LS - Loadshed 97P803-03 06/09/10 27

ontrols Standard Microprocessor charge damage, and a low suction temperature thermistor for freeze sensing. Upon a continuous 30-second measurement of the fault (immediate for high pressure), compressor operation is suspended, the appropriate lockout LED begins flashing. (efer to the Fault etry section below). Testing The control allows service personnel to shorten most timing delays for faster diagnostics. Flexible ontrol Options The standard control system is a microprocessor-based printed circuit board, (PB), conveniently located in the unit control box for accessibility. The microprocessor control is specifically designed for geothermal water source heat pumps to integrate compressors and advanced features needed in geothermal water source heat pump applications. The microprocessor provides control of the entire unit as well as outputs for status modes, faults, and diagnostics. Low voltage thermostat terminal strips provide convenient field connections. LEDs are located in the corner post to assist the technician when servicing the unit. Startup The unit will not operate until all the inputs and safety controls are checked for normal conditions. At first powerup, a five minute delay is employed before the compressor is energized. omponent Sequencing Delays omponents are sequenced and delayed for optimum space conditioning performance. Short ycle Protection The control allows a minimum on time of 2 minutes and a minimum off time of 5 minutes for short cycle protection. ondensate Overflow Protection The control board incorporates an impedance sensing liquid sensor at the top of the drain pan. Upon a continuous 30-second sensing of the condensate, compressor operation is suspended (see Fault etry), and the condensate overflow lockout LED begins flashing. Safety ontrols The control receives separate signals for a high pressure switch for safety, a low pressure switch to prevent loss of Fault etry All faults are retried twice before finally locking the unit out. An output signal is made available for a fault LED at the thermostat. The Fault etry feature is designed to prevent nuisance service calls. Diagnostics The control board allows all inputs and outputs to be displayed on the LEDs for fast and simple control board diagnosis. Emergency Shutdown A grounded signal to common or connecting 24 VA to the ES terminal places the controller into the emergency shutdown mode. The compressor and blower operation are suspended while in the emergency shutdown mode. Heating Operation Heating (Y1) The blower motor is started immediately after the Y1 input is received, and the compressor is energized 10 seconds after the Y1 input. Heat, 2 nd Stage (Y1, Y2) X13 EM When the gray wire is connected to the motor (Y2 is field connected) the blower speed will increase. Heat, 3 rd Stage (Y1, Y2, W) X13 EM When a "W" input is received the blower speed will increase and all stages of resistance heat will be energized along with the compressor operation. Emergency Heat (W only) The blower is started on high speed and all stages of resistance heat are energized. ooling Operation In all cooling operations, the reversing valve directly tracks the O input. Thus, anytime the O input is present, the reversing valve will be energized. 28