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Allied 7AH1AE Installation Instructions Manual

One-piece constant torque air handler-r410a
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INSTALLATION INSTRUCTIONS
7AH1AE
IMPORTANT
Every working procedure that affects safety means shall
only be carried out by competent persons. This appliance
is not to be used by persons (including children) with
reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have
been given supervision or instruction concerning use of
the appliance by a person responsible for their safety.
Children should be supervised to ensure they do not
play with the appliance.
IMPORTANT
If installing in an R454B application, R454B air handler
sensor kit (27J27), Refrigerant Detection System
Control (27A05) and R454B TXV (26Z70, 26Z71, or
26Z72) must be ordered.
If installing in an R454B application, use installation
instructions provided in R454B air handler sensor kit
(27J27).
For sensor maintenance recommendations, refer to the
instructions in kit 27J27.
508474-01
This manual must be left with the homeowner for future reference.
One-Piece Constant Torque

Table of Contents

General ........................................................................2
Shipping and Packing List ...........................................2
Wiring diagram ............................................................3
Air Flow - Cooling Blower Speed .................................4
Blower Performance Data ...........................................5
Electrical Connections .................................................7
Requirements ..............................................................9
Nameplate Marking .....................................................9
Checkout Procedures ................................................12
Operation ...................................................................12
Installation Clearances ..............................................13
Installation .................................................................13
Condensate Drain......................................................14
Duct System and Filters ...........................................16
Brazing Refrigerant Lines ..........................................18
Sealing the Unit .........................................................18
Homeowner Maintenance..........................................19
Professional Maintenance .........................................19
Decommissioning ......................................................20
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, service agency, or the gas supplier.
*P508474-01*
Issue 2424
Air Handler- R410A
WARNING
Allied Air Enterprises LLC
215 Metropolitan Drive
West Columbia, SC 29170
(P) 508474-01
Page 1 of 22

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Summary of Contents for Allied 7AH1AE

  • Page 1: Table Of Contents

    HVAC installer or equivalent, service agency, or the gas supplier. IMPORTANT If installing in an R454B application, R454B air handler Allied Air Enterprises LLC sensor kit (27J27), Refrigerant Detection System 215 Metropolitan Drive West Columbia, SC 29170 Control (27A05) and R454B TXV (26Z70, 26Z71, or 26Z72) must be ordered.

  • Page 2: General

    Check the unit rating plate to confirm that delivered unit matches order. General The 7AH1AE series air handler with aluminum coil is designed for indoor installation only. As shipped, the unit is ready for installation in either upflow or horizontal right-hand air discharge applications.

  • Page 3: Wiring Diagram

    W2 W1 18 YEL 6-PIN 14 GREEN PLUG 18 WHT 14 YEL 18 BLK TO THERMOSTAT BY OTHERS Figure 1. Typical Wiring Diagram – 7AH1AE Air Handler with Electric Heat – (Constant Torque Motor) 508474-01 Issue 2424 Page 3 of 22...

  • Page 4: Air Flow - Cooling Blower Speed

    TAP #1 (continuous fan speed). These settings are for nominal tonnage match-ups with 1 Refer to thermostat installation instructions the 7AH1AE units. When matched with other sizes, it is recommended that the CFM be adjusted to approximately If applicable 400 CFM per ton.

  • Page 5: Blower Performance Data

    Blower Performance Data 7AH1AE*24*01 External Static HCFM MHCFM MCFM MLCFM LCFM Pressure 1054 1015 1015 1020 7AH1AE*30*01 External Static HCFM MHCFM MCFM MLCFM LCFM Pressure 1341 1132 1132 1309 1099 1099 1289 1068 1068 1259 1041 1041 1239 1014 1014...
  • Page 6 7AH1AE*42*01 External Static HCFM MHCFM MCFM MLCFM LCFM Pressure 1656 1560 1560 1446 1624 1526 1526 1413 1594 1500 1500 1362 1563 1469 1469 1357 1543 1437 1437 1325 1505 1413 1413 1292 1456 1345 1345 1257 1417 1335 1335...

  • Page 7: Electrical Connections

    WARNING WARNING Excessive Weight Hazard - Use two or more people Electric Shock Hazard. when moving and installing the unit. Failure to do so Can cause injury or death. can result in back or other type of injury. Foil-faced insulation conductive characteristics similar to metal.

  • Page 8: Use Copper Conductors Only

    • Typical unit wiring (as well as wiring of optional field- installed electric heat) is given in Figure 2. Refer to the instructions provided with the electric heat section for proper installation. WARNING USE COPPER CONDUCTORS ONLY Disconnect all power supplies. Remove the air handler access panel.

  • Page 9: Requirements

    These units must be installed as a instructions can result in death, explosion, part of a matched system as outlined in the 7AH1AE or fire. Product Specification. These instructions are intended as a general guide. IMPORTANT...

  • Page 10: Unit Dimensions - Upflow - Inches (Mm)

    Unit Dimensions – Upflow – Inches (mm) 1 (25) DETAIL OF PIPING PLATE 4-3/4 3/4 (19) (121) SUCTION LINE SUPPLY AIR LIQUID OPENING CONDENSATE LINE 14-1/2 DRAINS (2) (368) 2-3/8 (Horizontal) (60) 1 (25) 1 (25) CONDENSATE DRAINS (2) 4-3/8 (Upflow and (111) 2-3/4...

  • Page 11: Checkout Procedures

    Set the thermostat so that it does not call for heat. Checkout Procedures Allow up to 5 minutes for all sequencers to cycle off Operation NOTE: Refer to outdoor unit installation instructions for system start-up instructions and refrigerant charging Cooling (Cooling Only or Heat Pump) instructions.

  • Page 12: Installation Clearances

    UP-FLOW / single-story buildings. DOWN-FLOW DRAIN PAN When a 7AH1AE unit is installed in a closet with a louvered return opening, the minimum open area for the louvers will Figure 8. Upflow Configuration • 320 square inches for -024 models;...
  • Page 13 Drip IMPORTANT Shield After removal of drain pan plug(s), check drain hole(s) AIR FLOW to verify that drain opening is fully open and free of any debris. Also check to make sure that no debris has Drains fallen into the drain pan during installation that may plug up the drain opening.

  • Page 14: Condensate Drain

    If electric heat section with circuit breakers (ECB45) is installations over a finished living space or in any area installed in a 7AH1AE unit in a downflow application, the that may be damaged by overflow from the main drain circuit breakers must be rotated 180° to the UP position.

  • Page 15: Install Condensate Drain

    7AH1AE units are equipped with a drain pan, which THIS CORNER SHOULD BE 5/8" (+/- 1/8") HIGHER includes green (main drain) and red (secondary drain) THAN DRAIN CORNER plugs. Unscrew the plugs to remove them before inserting condensate drain fittings.

  • Page 16: Duct System And Filters

    Plug and check any unused drain pan openings for Model Filter Size – in. tightness. Torque plugs to 36 in. lb. to prevent water -024, -030 15" x 20" x 1" leaks or seepage from the drain pan. -036, -042, -048, -060 18"...
  • Page 17 PLEASE READ IMPORTANT ISSUES CONCERNING BRAZING OPERATIONS IN THE BRAZING REFRIGERANT LINES SECTION BEFORE PROCEEDING. NOTE - Refer to outdoor unit installation instructions for refrigerant piping size requirements. NOTE - Use silver alloy brazing rods with five or six percent minimum silver alloy for copper-to-copper brazing;...

  • Page 18: Brazing Refrigerant Lines

    Brazing Refrigerant Lines CAUTION NOTE: For R454B refrigerant installations, do not braze Brazing alloys and flux contain materials which are the line set to the evaporator coil until the outdoor unit hazardous to your health. is installed. Refer to R454B Air Handler Conversion Kit Avoid breathing vapors or fumes from brazing (27J27) instructions for installation details.

  • Page 19: Homeowner Maintenance

    The 7AH1AE units are shipped inside surface temperature of the cabinet. with filters. Remove this filter if the return air register already has a filter.

  • Page 20: Decommissioning

    VOIDS MANUFACTURER’S Start the recovery machine and operate in accordance EQUIPMENT LIMITED WARRANTY. ALLIED with instructions. DISCLAIMS ALL LIABILITY IN CONNECTION WITH Do not overfill cylinders (no more than 80% volume INSTALLER’S FAILURE TO FOLLOW THE ABOVE liquid charge). INSTALLATION INSTRUCTIONS.

  • Page 21: Integrated Control

    Installing Contractor’s Name_______________________ Installing Date_______________________________ Installing Contractor’s Phone_______________________ Air Handler Model #___________________________ Job Address____________________________________ Thermostat Line Voltage SUPPLY Disconnect Switch Temperature Integrated Control Duct Blower Motor Amps System Electric Heat Amps Duct Static RETURN Filter Drain Line DUCT SYSTEM TOTAL EXTERNAL STATIC (dry coil) dry coil wet coil SUPPLY AIR DUCT...
  • Page 22 Installing Contractor’s Name_______________________ Installing Date_______________________________ Installing Contractor’s Phone_______________________ Air Handler Model #___________________________ Job Address____________________________________ Line Voltage Disconnect Switch Thermostat Integrated Control Duct System Duct System Filter RETURN SUPPLY Electric Heat Amps Blower motor Amps Drain Line Duct Static Temperature DUCT SYSTEM TOTAL EXTERNAL STATIC (dry coil) dry coil wet coil...

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