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AIR HANDLER INSTALLATION INSTRUCTIONS
AIR HANDLER SAFETY .................................................................1
INSTALLATION REQUIREMENTS ................................................1
Tools and Parts ............................................................................2
Location Requirements................................................................2
Installation Configurations ...........................................................3
Electrical Requirements ...............................................................3
Ductwork Requirements ..............................................................4
INSTALLATION INSTRUCTIONS ..................................................4
Inspect Shipment .........................................................................4
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 either the word "DANGER" or "WARNING."
These words mean:
WARNING
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.
These instructions are intended as a general guide only and do
not supersede any national or local codes in any way.
Compliance with all local, state, or national codes pertaining to
this type of equipment should be determined prior to installation.
Read this entire instruction manual, as well as the instructions
supplied in separate equipment, before starting the installation.
All models are designed for indoor installation only.
Whirlpool
©
Model WMB
0650329-60
AIR HANDLER SAFETY
Your safety and the safety of others are very important.
DANGER
INSTALLATION REQUIREMENTS
Table of Contents
Install Ductwork............................................................................4
Install Filter....................................................................................4
Make Electrical Connections .......................................................5
Complete Installation....................................................................7
SEQUENCE OF OPERATION ......................................................10
AIR HANDLER MAINTENANCE ..................................................10
ASSISTANCE OR SERVICE .........................................................10
Accessories ................................................................................10
WARRANTY ..................................................................................11
You can be killed or seriously injured if you don't immediately
follow instructions.
You can be killed or seriously injured if you don't follow
instructions.
The installation of the air handler, field wiring, warm air ducts, etc.
must conform to the requirements of the National Electrical
Code, ANSI/NFPA No. 70 (latest edition) in the United States, and
any state laws, and local ordinances (including plumbing or
wastewater codes). Local authorities having jurisdiction should
be consulted before installation is made. Such applicable
regulations or requirements take precedence over the general
instructions in this manual.
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Summary of Contents for Whirlpool WMB
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Page 1: Table Of Contents
Such applicable supplied in separate equipment, before starting the installation. regulations or requirements take precedence over the general All models are designed for indoor installation only. instructions in this manual. Whirlpool © Model WMB 0650329-60... -
Page 2: Tools And Parts
Install the conditioned air plenum, ducts and air filters (not provided) in accordance with NFPA 90B Standard for the Location Requirements Installation of Warm Air Heating and Air-Conditioning Systems (latest edition). WARNING The air handler is provided with flanges for the connection of the plenum and ducts. -
Page 3: Installation Configurations
Installation Configurations For ease in installation, it is best to make any necessary coil Installation Configuration Options configuration changes before setting the air handler in place. See NOTE: Typical installations with optional WEM modular “Installation Configuration Options” later in this section. evaporator coil are shown. -
Page 4: Ductwork Requirements
Supply and return ductwork must be adequately sized to Ductwork Requirements meet the system’s air requirements and static pressure capabilities. Ductwork should be insulated with a minimum of Install the conditioned air plenum, ducts and air filters (not 1" thick insulation with a vapor barrier in conditioned areas or provided) in accordance with NFPA 90B Standard for the 2"... -
Page 5: Make Electrical Connections
Make Electrical Connections 208/240 Volt Installations WARNING Electrical Shock Hazard Disconnect all power supplies before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. A. Connect yellow to yellow 1. Disconnect all power supplies. B. - Page 6 Wiring Diagram—Blower (PSC Motor) Power (Factory Wired) BK: Black W: White Control Circuit Wiring to Power (Field Wired) R: Red G: Green be 24 Volt, N.E.C. Class 2 Control (Factory Wired) BU: Blue Y: Yellow Plug Pin Amp 350781 - 1 Control (Field Wired) Location 6-Pin Cap...
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Page 7: Complete Installation
Wiring Diagram—Blower (Variable Speed Motor) 6-Pin Plug Power (Factory Wired) Control (Factory Wired Transformer TR Blower Motor MTR Ground Connection GND Blower Relay BWR Control Board 18 R 18 R 18 BU 18 BU 18 BK 208V 18 W 240V 18 OR 18 BU/W 18 Y... - Page 8 To change blower speed: Refer to “Wiring Diagram— Check Airflow (Variable Speed Motor) Blower (PCS Motor)” and “Wiring Diagram—Optional Electric Heat.” For proper cooling operation, the airflow through the indoor coil should be between 350 and 450 CFM per ton of cooling capacity WARNING (or 350 - 450 CFM per 12,000 Btu/h) based on the rating of the outdoor condensing unit.
- Page 9 Blower Performance Chart—Variable Speed Motor The versatility of the variable speed motor enables the air handler Before beginning the setup, become familiar with the information to tailor its performance to the different modes of operation found in the Blower Performance Chart—Variable Speed Motor. encountered in heating and cooling.
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Page 10: Sequence Of Operation
For a straight air conditioning system, connect the “O” wire to the thermostat “R” wire. Variable Speed Features Some WMB air handlers are equipped with a variable speed motor and will deliver a constant airflow within a wide range of external static pressures. The variable speed blower offers the... - Page 12 Model number __________________________________________________ Serial number __________________________________________________ Installation date ________________________________________________ 0650329-60 ®Registered Trademark/TM Trademark of Whirlpool, U.S.A., 5/06 © 2006. All rights reserved. Manufactured under license by Tradewinds Distributing Company, LLC., Coconut Grove, Florida Printed in U.S.A.