WLCG/WLHG
High-Wall Air Handlers
• Installation, Operation and Maintenance Manual •
Comfort where it counts
2
P/N 240008111, Rev. G [06/18/10]
Contents
To the Installer
Retain this manual and warranty for
future reference. Before leaving the prem-
ises, review this manual to be sure the unit
has been installed correctly and run the
unit for one complete cycle to make sure
it functions properly.
To obtain technical service or warranty
assistance during or after the installation
of this unit, contact your local representa-
tive. For a local representative listing, visit
our web site:
www.enviromaster.com
For further assistance call:
1-800-228-9364
When calling for assistance, please have
the following information ready:
Model Number _____________
Serial Number _____________
Date of installation ___________
IMPORTANT
Shipping damage MUST
be reported to the carrier
IMMEDIATELY.
Examine the exterior. Remove
cover and examine piping for
signs of damage.
NOTICE
The EMI series high efficiency air
handler is backed by EMI and ECR
International is tested, rated, and certi-
fied in accordance with AHRI Standard
210/240-2008 and UL-1995.
Due to ongoing product development,
product designs and specifications may
change without notice.
Please contact the factory for more
information.
Contents 2
Read Before Proceeding 3
Verify Unit Before Installing 4
Piston/Orifice Replacement
(when required) 6
Mounting the Unit 7
Electrical Wiring 9
Refrigerant Piping 14
Refrigerant Processing 17
Reassemble the WLCG/WLHG Cabinet 18
Initial Start-Up 19
WLCG/WLHG Controller Overview 20
Setting the Controller 22
Unit-Mounted Controller Operation 25
Wall Thermostat Operation 29
Controller Features 32
Controller Fault Conditions 33
Maintenance 34
Troubleshooting 36
Frequently Asked Questions 40
Specifications and Dimensions 42
WLCG/WLHG System Options 44
Test Unit Performance Data Sheet 46
EMI’s Product Line 47
Indoor Units 47
Outdoor Units 47
