Installation, Operation and Maintenance Instructions
for
MAKE-UP AIR UNITS
with Indirect Fired Gas Heat Option
Part # 457647
May 1999
GREENHECK
P.O. BOX 410 SCHOFIELD, WISCONSIN 54476-0410
PH. 715-359-6171
®
WARNING:
Improper installation, adjustment, alteration, service or maintenance can cause property damage,
injury or death. Read the installation, operating, and maintenance instructions thoroughly before
installing or servicing this equipment.
To prevent premature heat exchanger failure, do not locate any gas-fired units in areas where
chlorinated, halogenated, or acid vapors are present in the atmosphere.
This manual is the property of the owner, and is required for future maintenance.
Please leave it with the owner when you complete the job.
• If the unit has the Evaporative Cooling Option see the manual Part # 456858.
• If the unit has the DX or Chilled Water Cooling Option see the manual Part # 457046.
This unit is designed to incorporate a pre-manufactured indirect gas fired furnace.
Read the manufacturer’s manual for the furnace and this manual thoroughly before
attempting any maintenance, start-up, or installation of this unit.
