**WARNING**

DISCONNECT AND SECURE TO THE "OFF"
POSITION ALL ELECTRICAL POWER TO THE
UNITS PRIOR TO INSPECTION OR SERVICING.
FAILURE TO COMPLY WITH THIS SAFETY
PRECAUTION COULD RESULT IN SERIOUS
INJURY OR DEATH.

**IMPORTANT**

ALL FACTORY PROVIDED LIFTING LUGS MUST
BE USED WHEN LIFTING THE UNITS. FAILURE
TO COMPLY WITH THIS SAFETY PRECAUTION
COULD RESULT IN PROPERTY DAMAGE,
SERIOUS INJURY OR DEATH.
PART #459657

READ AND SAVE THESE INSTRUCTIONS

®
ENERGY RECOVERY UNITwith HEATING

Models: ERH-20, 45, 55, & 90

INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Heating Section
Energy Recovery Wheel

INSTALLATION SUPPLEMENT

Refer to the following Greenheck installation
supplement for ERH units supplied with Indirect
Gas (IG) heating:
Model PVF, Indirect Gas Fired Furnaces for
Energy Recovery Units, Part #461006