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AIR HANDLER
INSTALLATION INSTRUCTIONS
HMG**F1E, HMG**X1E & HCG**V1E Series
IMPORTANT
Please read all information in this manual thoroughly and become familiar with the capabilities
and use of your appliance before attempting to operate or maintain this unit. These instructions
are primarily intended to assist qualified individuals experienced in the proper installation of
this appliance. Some local codes require licensed installation/service personnel for this type
of equipment. Improper ins
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TAbLE OF CONTENTS IMPORTANT SAFETY INFORMATION .......................3 STARTUP & ADjUSTMENTS ................................... 13 Before You Start the Unit .........................................13 REq UIREMENTS & CODES .......................................3 Refrigerant Charging ...............................................14 Air Circulation ..........................................................14 GENERAL INFORMATION ..........................................4 Running the Blower Con
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IMPORTANT SAFETY INFORMATION WARNING: INSTALLER: Please read all instructions before servicing this equipment. Pay attention to all safety warnings and PROPOSITION 65 WARNING: This product any other special notes highlighted in the manual. Safety contains chemicals known to the state of markings are used frequently throughout this manual to California to cause cancer, birth defects or designate a degree or level of seriousness and should not other reproductive harm. be ignored. WARNING
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Operation of Air Handler During Construction GENERAL INFORMATION This appliance has been tested for capacity and efficiency in accordance with AHRI Standards and will provide CAUTION: many years of safe and dependable comfort, providing Failure to follow these instructions will void the it is properly installed and maintained. Abuse, improper factory warranty and may significantly reduce use, and/or improper maintenance can shorten the life the life or the performance of the air handler,
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handler must be cleaned and/or repaired if found to as the opening provided on the air handler. The ducts be dirty, damaged, or malfunctioning in any way by should be appropriately sized to the capacity of the air a qualified HVAC technician. The air handler shall be handler to ensure its proper airflow rating. inspected and approved by applicable local authority • Use tr ansition fittings if the supply and/or retur n air even if this requires redundant inspections. openings of the u
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equipment noise eminating from the air handler. These treatments can produce a quieter installation, particularly in the heated space. However, they can increase the pressure drop in the duct system. Care must be taken to maintain the proper maximum pressure rise across the air handler, temperature rise and flow rate. This may mean increasing the duct size and/or reducing the blower speed. These treatments must be constructed and installed in accordance with NFPA and SMACNA Horizontal c
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Horizontal Installations suspended using steel straps around each end of the These air handlers can be installed horizontally in an attic, unit. The straps should be attached to the air handler with basement, crawl space or alcove. It can also be suspended sheet metal screws and to the rafters with bolts. from a ceiling in a basement or utility room in either a right Horizontal Left Installations: to left airflow or left to right airflow as shown in Figure 3. 1. Remove the coil access door.
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Recess Air Handler Access Door Circuit Breakers Circuit Breaker Cover 7. Insert the plug (from horizontal drain pan) into the open 3. Remove the release paper from the other side of the and unused drain hole in the drain pan at the bottom gasket and attach to the circuit breaker recess area. of the unit to block bypass air. 4. Press firmly along all four sides of the cover to ensure 8. Remove the corresponding drain line knockout from gasket and cover are securely attached to the access the
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Orifice Removal & Installation 9. Realign the assembly nut on the distributor body and The orifice installed in the air handler has been sized for hand tighten both components. Mark a line on both bodies and then tighten an additional 1/4 turn using two use with the most popularly matched outdoor units. The wrenches. The movement of the two lines will show how orifice size as shipped from the factory is listed on the air much the nut is tightened. If a torque wrench is used, handler ratin
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1. Remove grommets from line set holes. 6. Braze the individual connections with dry nitrogen flowing through the joints. NOTE: This will prevent internal oxidation and scaling from occurring. CAUTION: 7. Wrap the refrigerant lines with pressure sensitive neoprene or other suitable material especially where It is recommended that a wet rag be wrapped the lines enter the opening in the sheet metal. around the suction line in front of the close 8. Evacuate the system of moisture and non-con
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• Install a single 5 inch tr ap in the condensate dr ain line • It is recommended that the line v oltage to the unit be as close to the coil as possible. Make sure that the supplied from a dedicated branch circuit containing the top of the trap is below the bottom of the drain pan to correct fuse or circuit breaker for the unit. prevent the condensate from overflowing the drain pan. • Ov ercurrent protection m ust be pro vided at the br anch NOTE: There must be
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low-voltage wiring between the thermostat, outdoor unit, and control board. NOTE: When the low voltage CAUTION: wires are positioned in this grommet, the grommet will Isolation must be maintained from the external prevent chafing and/or shorting of the low voltage leads. Class 2 output of any transformer in a cooling circuit. Use a thermostat with isolating contacts Control board to prevent inter-connection of Class 2 outputs. The control board in the air handler controls the timing seque
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NOTE: Variable speed air handlers cannot be twinned. STARTUP & ADjUSTMENTS Heater Kits When electric heat packages with circuit breakers are WARNING: field-installed, the circuit breaker may be used as a disconnecting means in most applications. Reference NITROGEN the NEC and local codes for disconnect requirements. HEALTH 1 If a heater kit is installed: The HMG**F1E series air handler is shipped from the FLAMMABILITY 0 factory without an electric heater kit installed. If Electric heat is
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Refrigerant Charging automatically set the heating speed based on the amount The system refrigerant charge can be checked and of installed heat. The remaining 3 HEAT switches have no adjusted through the service ports provided at the front function. Switch settings are listed in Table 6 (page 20) panel of the outdoor unit. Use only gauge lines which have or Table 9 (page 22). NOTE: For HMG**X1E Models, the a Schrader depression device present to actuate the valve. minimum electric heat airfl
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4. Replace the upper door and secure it to the unit. • F o r m a x i m u m d e h u m i d i fi c a t i o n , s e l e c t a n a i r fl o w n e a r t h e 5. Restore power to the unit. middle or bottom of the range for that nominal capacity. Additional information on humidity control can be found High Efficiency Units (Variable & Fixed Speed) in the Humidistat and Delay Setting sections. IMPORTANT! This air handler has been designed to • F or ther mostats with a dehumidifier outpu
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UNIT MAINTENANCE FURNACE SIZE (bTUH) FILTER SIZE Proper maintenance is most important to achieve the best 24K & 30K 12 x 20 x 1 performance from a air handler. Some of the components 36K & 42K 18 x 20 x 1 and their locations are shown in Figure 13 (page 18). If 48K & 60K 20 x 20 x 1 any component of the air handler must be replaced, use Table 2. Filter Sizes only factory authorized replacement parts specified in the Replacement Parts List provided online. blower Compartment Dirt and lint ca
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FIGURES & TAbLES 3/4” 3/4” 3/4” 13” 11/8” K.O. (typ.) “A” 1 7/8" K.O. 11/4” 15/8” 11/4” 17/8” 3 1/4” 2 5/8” 1 1/8” 1 7/8” 7/8" K.O. 11/8” K.O. (typ.) 1 7/8” 3 5/8” 5 5/8” 13/4” K.O. (typ.) DETAIL “D” “H” 3 1/4” SUCTION 2 1/4” LIQUID 15 1/4” 13” “W” 22" FURNACE SIZE (bTUH) H W A Detail D 24K & 30K 43-5/16 14-3/16 12-3/4 No 36K (HMG**F1E Only) 43-5/16 19-11/16 18-1/4 No 36K & 42K 49-5/16 19-11/16 18-1/4 No 48K & 60K 55-15/16 22-7/16 21 Yes Figure 12. HMG**F1E, HMG**X1E & HCG**V1E Series Physical D
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Circuit Breaker (60A) Heating Element Assembly Transformer Motor Control Board Upper Door Blower Control Assembly Wheel Board Capacitor Motor Mount Kit Blower Housing Blower Coil Motor Assembly Filter Door Horizontal Vertical Drain Pan Drain Pan Filter Tracks Lower Door Assembly Figure 13. HMG**F1E, HMG**X1E & HCG**V1E Series Air Handler Components 18
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AIRFLOW DATA Dry Coil ESP 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 Low 683 647 607 563 515 463 406 345 1 Corrected ESP 0.00 0.07 0.19 0.30 0.42 0.53 0.65 0.76 Medium 861 823 781 734 682 625 564 498 HMG24F1E 1 Corrected ESP 0.00 0.00 0.11 0.23 0.36 0.48 0.60 0.72 High 1072 1026 975 920 860 797 730 659 1 Corrected ESP 0.00 0.00 0.00 0.14 0.27 0.40 0.53 0.67 Low 849 825 793 753 704 647 581 508 1 Corrected ESP 0.00 0.04 0.15 0.27 0.38 0.50 0.62 0.74 Medium 1118 1087 1046 997 940 874 799 717 HMG30F1E
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Cooling or Heating Airflow (CFM) Switch Settings 0 = OFF, 1 = ON Dry Coil ESP 1/5 2/6 3/7 4/8 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0 0 0 0 585 550 520 460 420 405 1 0 0 0 710 670 650 610 560 530 475 440 0 1 0 0 845 790 765 715 680 655 625 580 1 1 0 0 890 865 840 785 760 710 680 655 0 0 1 0 955 925 900 850 825 790 770 720 HMG24X1E 1 0 1 0 1030 995 975 940 910 870 840 815 & 0 1 1 0 1115 1085 1060 1020 995 965 925 905 HMG30X1E 1 1 1 0 1155 1130 1095 1070 1040 1010 985 950 0 0 0 1 1200 1175 1145 1110 108
