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INSTALLATION & OPERATING
® INSTRUCTIONS FOR
C US
ARUF, ARPF, ARPT and AEPT
SERIES AIR HANDLER
Made in the USA by:
Goodman Manufacturing Company, L.P.
IO-230F 2550 North Loop West, Suite 400 - Houston, Texas 77092 08/04
www.goodmanmfg.com or www.amana-hac.com
© 2003-2004 Goodman Manufacturing Company, L.P.
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IMPORTANT SAFETY INSTRUCTIONS INDEX INTRODUCTION .................................................................... 2 Recognize Safety Symbols, Words, and Labels The following symbols and labels are used throughout this REPLACEMENT PARTS ........................................................ 2 manual to indicate immediate or potential hazards. It is the SAFETY INSTRUCTIONS ...................................................... 2 owner’s responsibility to read and comply with all safety WARNI
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MODEL IDENTIFICATION WARNING AR U F 024 00 A 1 A THIS PRODUCT IS FACTORY SHIPPED FOR USE WITH A 208-230/1/60 ELECTRICAL POWER SUPPLY. THIS AIR HANDLER MUST NOT BE RECONFIGURED TO OPERATE WITH ANY OTHER POWER SUPPLY. Revision WARNING Electrical Supply WHEN INSTALLING OR SERVICING THIS EQUIPMENT, 208 - 230/1/60 SAFETY CLOTHING, INCLUDING HAND AND EYE PROTECTION, IS STRONGLY ADVISED. IF INSTALLING Feature THIS EQUIPMENT IN AN AREA THAT HAS SPECIAL A = Initial Release SAFETY REQUIREMENTS (HARD HAT
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When matched with a Goodman or Amana brand HEAT KIT NOMINAL kW CFM condenser or heat pump, an ARI certified rating is available 3 5 6 8 10 15 20 21 for many combinations. 600 18 28 35 41 TM The AEPT models are equipped with an ECM motor. An 800 13 21 26 31 42 TM ECM motor is more efficient than a standard PSC motor 1000 11 17 21 25 34 50 and offers features such as soft-start, controlled off-delays, 1200 9 14 18 21 28 42 56 62 and constant CFM. Additional features and the associated 1400 8 12
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maximum heat and allow the system to reach steady state require external filtering. A washable filter is available as conditions. Insert two thermometers, one in the return air an accessory. To ensure optimum performance frequent and one in the supply air. The temperature rise is the supply filter c leani ng i s advised. Refer to Table 5 for the appropriate air temperature minus the room air temperature. filter. Use HKR specification sheets to determine the HKR ARUFor ARPF AEPT Filter Qty a
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Wire Sizing Air Handler Only (Non-Heat Kit Models) Wire size is important to the operation of your equipment. The building supply connects to the stripped black and white Use the following check list when selecting the appropriate wires contained in the air handler electrical compartment wire size for your unit. cavity. A ground screw is also contained in this area. Attach the supply wires to the air handler conductors as shown in • Wire size must carry the Minimum Circuit Ampacity the unit w
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Piping Size TXV Models (ARPT and AEPT) For the correct tubing size, follow the specification for the IMPORTANT NOTE: In order to prevent damage to the condenser/heat pump. sensing bulb, it is not permanently installed in the factory. This bulb is to be removed prior to brazing. Place in proper location after braze joint has cooled (Figure 3). WARNING 1. Loosen the 13/16 nut 1 TURN ONLY. No pressure THIS COIL IS SHIPPED UNDER PRESSURE. FOLLOW loss indicates possible leak. THESE INSTRUCTIONS TO
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To increase the superheat (measured at the condenser Refer to Figures 5 through 7 for the location of the base valve), turn the stem clockwise (in). Similarly, to components referenced in the following steps. Figure 5 decrease the superheat, turn the stem counterclockwise illustrates the new installation location for the removed (out). Use a ¼ “ refrigeration wrench for this function. components. 1. Before inverting the air handler, remove all access Note: Design point for the system is 10 de
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To complete the conversion, slide the evaporator coil into 7. Install the plastic plug removed in step 5 to the right t he chassi s and att ach t he thr ee (3) access panel s. (Figure side lower access panel and the oval shaped rubber 7). gasket to the lower left access panel. 8. Reinstall the evaporator coil with the horizontal panel CONVERSION TO HORIZONTAL on the left side. Note: Push the assembly completely The “B” series product is not suitable for horizontal to the rear to ensure the enga
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IMPORTANT NOTE: THE EVAPORATOR COIL IS Dipswitch Functions COATED WITH OILS THAT MAY DISSOLVE The AEPT air handler motor has an electronic control that STYROFOAM AND CERTAIN TYPES OF PLASTICS. contains an eight (8) position dip switch. The function of THEREFORE, A REMOVAL PUMP OR FLOAT SWITCH these dipswitches are shown in Table 9. MUST NOT CONTAIN ANY OF THESE MATERIALS. Dipswitch Number Function Tip: Priming the “P” trap may avoid improper draining at 1 Electric Heat the initial installation
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Humidity Control When using a Humidistat (normally closed), cut jumper PJ6 on the control board. The Humidistat will only affect cooling airflow by adjusting the Airflow to 85%. Two Stage Heating When using staged electric heat, cut jumper PJ4 on the control board. Thermostat Wiring Use thermostat wiring diagram Figures 10 thru 13 and those provided with the thermostat when making these connections. NOTE: DO NOT USE THESE DIAGRAMS FOR AEPT MODELS. SEE SUPPLEMENTAL INSTALLATION AND OPERATING I
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FIGURE 12 AR/ARUF/ARPF/ARPT 18-60 10 KW & BELOW TYPICAL H/P #18 GA. 7 WIRE HEAT PUMP ROOM THERMOSTAT AR UNIT W2 C O Y R W2 Y O C G R E B W O Y R L H R E E U I A L D R R RED E T N L R E G O E W Y G G GREEN O SEE NOTE #3 BR W WHITE W W BL BL BLUE BL #18 GA. 5 WIRE (OPTIONAL) OUTDOOR THERMOSTAT CLOSE ON TEMPERATURE FALL #18 GA. 6 WIRE NEEDED WHEN OT IS USED AR/ARUF/ARPF/ARPT FIGURE 13 18-60 ABOVE 10 KW TYPICAL H/P HEAT PUMP #18 GA. 7 WIRE ROOM THERMOSTAT AR UNIT W2 C O Y R Y O C W2 G R E B W O Y
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THERMOSTATS • Drain pan and drain tubing has been leak checked. Note: Second Stage heat can be accomplished by multi- • Return and supply ducts are sealed. stage heating thermostat or the addition of an outdoor • Unit is elevated when installed in a garage or where thermostat as shown in Figures 12 and 13. flammable vapors may be present. Goodman part number CHT18-60 is a single-stage cool • Unit is protected from vehicular or other physical and single-stage heat thermostat. damage. • Return air
