True GDM Series User Manual

Thermostat
Senses evaporator
temperature
@40°F cuts in -
starts compressor
@18°F cuts out -
shuts compressor
off
Evaporator
As air is pushed
through the
evaporator by the
fan motors liquid
refrigerant absorbs
heat through the
walls of the
evaporator coils and
vaporizes - thus
becoming a low
pressure gas.
Hot air out
Cool air in
Compressor
Combines heat absorbed
in the evaporator coils with
heat of compression from
the piston stroke then
pushes high pressure gas
(vapor) on into the
condenser.
®
®
Condenser
High pressure gas is
condensed into a high
pressure liquid when the
heat is removed. By pulling
air in the front of the
condenser by means of the
fan motor. The air will be
used to evaporate the drain
pan water.
Capillary
Tube
Meters the amount
of liquid refrigerant
into the evaporator
where it absorbs
heat.
Color Chart
Dark Blue = Low pressure liquid
Light Blue = Low pressure gas
Red = High pressure gas
Pink = High pressure liquid
Condensate
Pan
The resulting warm air
from the condensor
blows over the
condensate pan and
evaporates the water.
Compressor
Fan Motor
Evaporator
Fan Motor
24

True GDM Series Specifications

General

Defrost Type	Automatic
Weight	Varies by model
Shelves	Adjustable Wire Shelves
Lighting	LED
Interior Finish	Stainless Steel
Compressor Location	Bottom
Energy Efficiency	Energy Star Certified
Capacity	Varies by model
Dimensions	Varies by model