Allied Air 7AH2AE Series Installation Instructions Manual

Two-piece constant torque air handler-r410a

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INSTALLATION INSTRUCTIONS

7AH2AE

This manual must be left with the homeowner for future reference.

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 R454B application, use

installation instructions provided in R454B air handler

sensor kit (27J27).

For sensor maintenance recommendations, refer to the

instructions in kit 27J27.

WARNING

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.

WARNING

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.

508476-01

Two-Piece Constant Torque

General Information .......................................................2

Shipping and Packing List .............................................2

Wiring diagram ..............................................................3

Adjusting Blower Speed ................................................5

Making Electrical Connections ......................................8

Requirements ................................................................9

Upflow and Downflow Unit Dimensions .......................10

Horizontal Left- and Right-Hand Discharge Unit

Dimensions .................................................................. 11

Installing the Unit .........................................................12

Brazing Connections ...................................................14

Installing the Condensate Drain ..................................15

Inspecting and Replacing Filters .................................17

Sealing the Unit ...........................................................17

Homeowner Maintenance ............................................18

Check-out Procedures .................................................19

Decommissioning ........................................................20

Maximum Altitude of application is 3200m above sea

level.

The Clean Air Act of 1990 bans the intentional venting of

refrigerant (CFCs, HCFCs and HFCs) as of July 1, 1992.

Approved methods of recovery, recycling or reclaiming

must be followed. Fines and/or incarceration may be

levied for noncompliance.

NOTE - This unit is a PARTIAL UNIT AIR CON DITIONER,

complying with PARTIAL UNIT requirements of this Stan-

dard, and must only be connected to other units that have

been confirmed as complying to corre sponding PARTIAL

UNIT requirements of this Standard, UL 60335-2-40/CSA

C22.2 No. 60335-2-40, or UL 1995/CSA C22.2 No 236.

Partial units shall only be connected to an appliance suit-

able for the same refrigerant.

IMPORTANT: Special procedures are required for clean-

ing the all-aluminum coil in this unit. See page 16 in this

instruction for information.

Allied Air Enterprises LLC

West Columbia, SC 29170

*P508476-01*

Issue 2426

Air Handler-R410A

WARNING

IMPORTANT

215 Metropolitan Drive

(P) 508476-01

Page 1 of 22

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Summary of Contents for Allied Air 7AH2AE Series

Page 1: Table Of Contents
See page 16 in this Children should be supervised to ensure they do not instruction for information. play with the appliance. Allied Air Enterprises LLC WARNING 215 Metropolitan Drive West Columbia, SC 29170...
Page 2: General Information
REFRIGERANT LINE PLUGS (SEE PAGE 6) General Information The 7AH2AE series air handler with all-aluminum coil is designed for installation with optional field-installed elec- tric heat and a matching HFC-410A outdoor unit. This instruction is intended as a general guide and does not supersede local or national codes in any way.
Page 3: Wiring Diagram
Wiring diagram FIGURE 1. Typical System Wiring Diagram 508476-01 Issue 2426 Page 3 of 22...
Page 4 FIGURE 2. Typical System Wiring Diagram – 460V, Single- and Three-Phase Units (-036, -048 and -060 only) 508476-01 Issue 2426 Page 4 of 22...
Page 5: Measuring Static Pressure
.4 static. Energized when Table 1 lists the recommended factory blower speed tap electric heat electric heat element has a call selections for 7AH2AE series units. for heat. TABLE 1. Recommended Blower Speed Tap Selection High-static CFM set at 400 cfm per nominal applications ton at .8 static.
Page 6: Blower Data
BLOWER DATA 7AH2AE018X BLOWER PERFORMANCE External Air Volume and Motor Watts Static Tap 1 Tap 2 Tap 3 Tap 4 Tap 5 Pressure Watts Watts Watts Watts Watts in. w.g. 7AH2AE024X BLOWER PERFORMANCE External Air Volume and Motor Watts Static Tap 1 Tap 2 Tap 3...
Page 7 BLOWER DATA 7AH2AE036X BLOWER PERFORMANCE External Air Volume and Motor Watts at 208V Static Tap 1 Tap 2 Tap 3 Tap 4 Tap 5 Pressure Watts Watts Watts Watts Watts in. w.g. 1239 1301 1301 1447 1194 1264 1264 1411 1156 1229 1229...
Page 8: Making Electrical Connections
7AH2AE 060X BLOWER PERFORMANCE External Air Volume and Motor Watts Static Tap 1 Tap 2 Tap 3 Tap 4 Tap 5 Pressure Watts Watts Watts Watts Watts in. w.g. 1354 1768 1954 1870 2148 1307 1742 1929 1845 2124 1267 1706 1898 1817...
Page 9: Requirements
In addition to conforming to manufacturer’s installation THERMOSTAT instructions and local municipal building codes, installation of Allied air handler units (with or without optional electric heat), MUST conform with National Fire Protection Association (NFPA) standards: “Standard for 5 FEET Installation of Air Conditioning and Ventilation Systems”...
Page 10: Upflow And Downflow Unit Dimensions
Upflow and Downflow Unit Dimensions PIPING PLATE DETAIL 3/4 (19) (FOR UP-FLOW AND DOWN-FLOW POSITIONS) 5/8 (16) SUPPLY AIR OPENING 4 3/8 (111) 1 1/8 (29) SUCTION LINE CONDENSATE DRAINS 5/8 (16) 5/8 (16) (2) (HORIZONTAL) 3/4 (19) Return Air Opening (51) LIQUID LINE 11 1/16 (281)
Page 11: Horizontal Left- And Right-Hand Discharge Unit Dimensions
Horizontal Left- and Right-Hand Discharge Unit Dimensions 5 3/8 FILTER (137) (51) Horizontal Position LIQUID LINE (Right Hand Air SUCTION CONDENSATE Discharge) LINE DRAINS (2) (UP-FLOW Coil BLOWER 1 1/8 DOWN-FLOW) (29) CONDENSATE 4 3/8 DRAINS (2) (111) FOR DIMENSIONS “A” THROUGH (HORIZONTAL) “H”, SEE CHART ON PAGE 2.
Page 12: Installing The Unit
TABLE 4. Optional Side-Return Unit Stand Installing the Unit (Upflow Only) These units are factory-configured for upflow and hori- Model Kit Number zontal right-hand discharge installation. For downflow or All unit sizes 45K32 horizontal left-hand discharge, certain field modifications are required. HORIZONTAL RIGHT-HAND DISCHARGE DISASSEMBLE/REASSEMBLE AIR HANDLER UNITS APPLICATION...
Page 13 Use the following procedures to configure the unit for hor- 1/2" SCREWS MAXIMUM ELECTRICAL INLET CLEARANCE 4" izontal left-hand discharge operations: (102 mm) ANGLE IRON OR 1 - Before operating the unit, remove access panels SHEET METAL and the horizontal drip shield (-060 model) and the corrugated padding between the blower and coil assembly.
Page 14: Downflow Application
and application). For field-fabricated refrigerant lines, see 10 - Install the horizontal shield (-060 model) on the the piping section of the Allied Unit Information Service front edge of the horizontal drain pan as illustrated Manual. in figure 10. NOTE – For horizontal applications in high humidity ar- WARNING eas, remove the downflow rail closest to the drain pan.
Page 15: Installing The Condensate Drain
It is recommended that the overflow drain is connected to an overflow drain line for all units. If overflow drain is not NOTE – 7AH2AE series air handlers use nitrogen or dry connected, it must be plugged with provided cap.
Page 16 PLEASE READ IMPORTANT ISSUES CONCERNING BRAZING USE A WET RAG TO PROTECT CTXV SENSING BULB WHEN BRAZING SUCTION LINE CONNECTIONS. 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, 45 percent alloy for copper-to-brass and copper-to-steel brazing.
Page 17: Inspecting And Replacing Filters
• Condensate drain lines must be configured or provided with a cleanout to permit the clearing of blockages and for main- tenance without requiring the drain line to be cut. OVERFLOW DRAIN LINE ABOVE ALWAYS RUN AN OVERFLOW DRAIN LINE. IF NOT POSSIBLE TO FINISHED ROUTE OVERFLOW DRAIN LINE, INSTALL LOW VOLTAGE SPACE?
Page 18: Homeowner Maintenance
Seal the unit so that warm air is not allowed into the cabi- WARNING net. Warm air introduces moisture, which results in water blow-off problems. This is especially important when the Electric Shock Hazard. unit is installed in an unconditioned area. Can cause injury or death.
Page 19: Check-Out Procedures
• Is the thermostat correctly wired and in a good location? Nameplate Marking • Are all access panels in place and secure? Prior to installing the front panel, mark the unit nameplate CHECK BLOWER OPERATION to permanently identify the refrigerant configuration. •...
Page 20: Decommissioning
d) Pump down refrigerant system, if possible. Decommissioning e) If a vacuum is not possible, make a manifold so that Before carrying out this procedure, it is essential that the refrigerant can be removed from various parts of the technician is completely familiar with the equipment and system.
Page 21 Installing Contractor’s Name_______________________ Installing Date_______________________________ Installing Contractor’s Phone_______________________ Air Handler Model #___________________________ Job Address____________________________________ Thermostat Line Voltage SUPPLY Disconnect Switch Integrated Control Temperature 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...

This manual is also suitable for:

7ah2ae018 series 7ah2ae024 series 7ah2ae036 series 7ah2ae042 series 7ah2ae048 series 7ah2ae 060 series