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INSTALLATION INSTRUCTIONS
7AHW
This manual must be left with the homeowner for future reference.
Compact Front Return
TABLE OF CONTENTS
Air Handler Safety....................................................................2
Wiring Diagram......................................................................5
Thermostat Connections............................................................7
Electrical Data..........................................................................9
Blower Performance Data.........................................................10
Unit Dimensions..........................................................................11
General........................................................................................12
Inspect shipment..........................................................................12
Tools and Parts Needed..............................................................13
Electrical Requirements.........................................................13
Electrical Connections...........................................................13
Outdoor System Requirements...........................................14
Installation ...................................................................................14
Metering Device .........................................................................15
Brazing Refrigerant Lines....................................................16
Refrigerant Charging Instructions........................................17
SAFETY CONSIDERATIONS
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and
on your appliance. Always read and obey all safety messages.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you
and others.
All safety messages will follow the safety alert symbol and signal word.
These signals words mean the following:
DANGER: You can be killed or seriously injured if you don't
immediately follow instructions.
WARNING: Indicate a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
This appliance is not intended for use 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 ensure that they do not
67860200
Wall Mount Air Handlers
PAGE
TABLE OF CONTENTS
Install Condensate Drain.....................................................17
Mark Refrigerant on Rating Plate........................................18
Air Handler Checks.............................................................18
Homeowner Maintenance .....................................................19
Repairing or Replacing Cabinet Insulation ...........................19
Professional Maintenance......................................................20
Use of Air Handler During Construction.................................20
Sensor Maintenance..............................................................20
Modes of Operation................................................................20
Diagnostic Codes...................................................................21
Test Button Functionality........................................................21
Thermostat Compatibility........................................................21
Additional Applications...........................................................22
Start Up Test Procedure .......................................................22
Decommissioning..................................................................23
CAUTION: Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. Caution may also be
used to alert against unsafe practices.
NOTICE: Indicates a statement of company policy as the message
relates directly or indirectly to the safety of personnel or protection of
property.
IMPORTANT: More detailed information concerning the statement of
company policy as the message relates directly or indirectly to the safety
of personnel or protection of property.
All safety messages will tell you what the potential hazard is, tell you
how to reduce the chance of injury, and tell you what can happen if the
instructions are not followed.
WARNING
play with the appliance.
Allied Air Enterprises LLC
215 Metropolitan Drive
West Columbia, SC 29170
(P) 67860200
Issue 2444
Wall Mount Air Handler
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Page 1 of 23
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Summary of Contents for Allied 7AHW
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Page 1: Table Of Contents
Children should be supervised ensure that they do not play with the appliance. Allied Air Enterprises LLC 215 Metropolitan Drive West Columbia, SC 29170... -
Page 2: Air Handler Safety
AIR HANDLER SAFETY IMPORTANT CAUTION This unit is a PARTIAL UNIT AIR CONDITIONER, complying Any service personnel installing, decommissioning, or per- with PARTIAL UNIT requirements of this Standard, and must forming maintenance on the unit must be properly trained with only be connected to other units that have been confirmed as A2L refrigerants complying to corresponding PARTIAL UNIT requirements of... - Page 3 IMPORTANT IMPORTANT Work shall be undertaken under a controlled procedure so as Where electrical components are being changed, they shall to minimize the risk of a flammable gas or vapor being present be fit for the purpose and to the correct specification. At all while the work is being performed.
- Page 4 AIR HANDLER SAFETY WARNING NOTICE Auxiliary devices which may be a potential ignition source All maintenance staff and others working in the local area shall not be installed in the duct work. Examples of such shall be instructed on the nature of work being carried out potential ignition sources are hot surfaces with a temperature with work in confined spaces being avoided.
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Page 5: Wiring Diagram
WIRING DIAGRAM 3-SPEED PSC MOTOR (NO HEAT) 3-SPEED PSC MOTOR (WITH ELECTRIC HEAT) 67860200 Issue 2444 Page 5 of 23... - Page 6 WIRING DIAGRAM 5-SPEED ECM MOTOR (NO HEAT) 5-SPEED ECM MOTOR (WITH ELECTRIC HEAT) 67860200 Issue 2444 Page 6 of 23...
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Page 7: Thermostat Connections
LOW VOLTAGE THERMOSTAT CONNECTIONS 67860200 Issue 2444 Page 7 of 23... - Page 8 LOW VOLTAGE THERMOSTAT CONNECTIONS 67860200 Issue 2444 Page 8 of 23...
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Page 9: Electrical Data
ELECTRICAL DATA 3-Speed PSC Motor Unit Size Heating Capacity Blower Amps Minimum Circuit Am- Circuit Breaker Amps (All have electric heat) pacity Per Stage BTUH 240 V 240 V 208 V 240 V 208 V 240 V 208 V 240 V 17,065 24.8 28.2... -
Page 10: Blower Performance Data
BLOWER PERFORMANCE DATA 3-Speed PSC Motor Airflow (CFM) vs. External Static Pressure Cooling Speed Unit Size (inches W.C.) *** Setting * ^ Low - Med - Blue High -Black 1046 1013 Low - Red * ^ Med - Blue High -Black 1046 1013 Low - Red... -
Page 11: Unit Dimensions
UNIT DIMENSIONS Air Handler Size A (in) B (in) C (in) 18 - 37 18.75 29.75 18.75 35.5 67860200 Issue 2444 Page 11 of 23... -
Page 12: General
GENERAL These instructions are intended as a general guide only and do WARNING not supersede any national or local codes in any way. Compli- ance with all local, state, or national codes pertaining to this type Electrical Shock of equipment should be determined prior to installation. Read this entire instruction manual, as well as the instructions Disconnect power before servicing. -
Page 13: Tools And Parts Needed
TOOLS AND PARTS NEEDED Replacement Orifice (if needed; see “Metering Device” ) Assemble the required tools and parts before starting installa- tion. Read and follow the instructions provided with any tools Check local codes, check existing electrical supply, listed here: and read “Ductwork Requirements,”... -
Page 14: Outdoor System Requirements
208 VOLT CONVERSION WARNING Disconnect all power supplies before servicing. Remove the air handler access panel Using the wiring diagram located on the unit access panel as a reference move the 14ga black transformer lead from the 240 volt terminal on the transformer the 240 volt terminal on the transformer to the 280 volt terminal on the Electrically ground air handler. -
Page 15: Metering Device
cap onto bracket. FIGURE 2 Flush Mount or “In the Wall” Applications (Figure 2) Recess air handler 2″ to provide adequate space for drain line connections. If a flush application is desired, a notch will need to be cut in the stud to allow for primary drain access. Do not allow the air handler to protrude beyond the front of the stud, this will interfere with the louvered wall grille application. -
Page 16: Brazing Refrigerant Lines
Handle the refrigerant lines gently during the installation Applications for assistance. To obtain the correct information process. Sharp bends or kinks in the lines will cause a from Allied, be sure to communicate the following information: restriction. Model and capacity. -
Page 17: Refrigerant Charging Instructions
NOTE - Make sure to route copper refrigerant tubing away from IMPORTANT sharp edges and make sure that it does not touch other metal surfaces. This prevents damage caused by vibration or metal- After completion of field piping for split systems, the field on-metal contact. -
Page 18: Mark Refrigerant On Rating Plate
MARK REFRIGERANT ON RATING PLATE Permanently mark the serial label with the appropriate A2L (R-454B & R-32) refrigerant & metering device used as shown below. AIR HANDLER CHECKS NOTE - Refer to outdoor unit installation instructions for system start-up instructions and refrigerant charging instructions. Check Airflow PRE-START-UP CHECKS •... -
Page 19: Homeowner Maintenance
indicated on the air handler wiring diagram. a. Move motor tap 2 (BRN) to Y1 Connect desired tap (Red [LOW], Blue [MED, Black [HIGH]) b. Move motor tap 3 (YEL) to W2 to the “COM” terminal on the blower relay. Connect unused High static single stage installation: taps to the Blank terminals on blower control board. -
Page 20: Professional Maintenance
• DO NOT vacuum sensor inlet opening, as this could cause damage to the sensor internal components. Allied does not recommend the use of its air handler unit dur- • Replace sensor if the opening is not clean or free of debris. -
Page 21: Diagnostic Codes
DIAGNOSTIC CODES TABLE 3. Test Button Function Mode of Press the Test Button to... The RDS Non-Communicating Blower Control Board is equipped Operation with a multicolor LED within its enclosure. The LED signals the Trigger a leak detection response. state of the RDS Non-Communicating Blower Control Board. Normal Verify all equipment is wired correctly into the RDSC (after installation). -
Page 22: Additional Applications
Compatibility Verification The RDS Non-Communicating Blower Control Board triggers the external alarm system when it enters Leak Detected mode. For Complete the following process to determine whether the ther- alarm notifications, the RDS Non-Communicating Blower Con- mostat is compatible with the RDS Non-Communicating Blower trol Board provides a dry relay contact that is rated 3A at 30 Control Board. -
Page 23: Decommissioning
DECOMMISSIONING Before carrying out work on systems containing refrigerant, it is essential that the technician is completely familiar with the equip- ment and all its detail. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of recovered refrigerant.
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