Manual 2100-667
Page
18 of 19
FIGURE 11
Call for Ventilation With or Without Compressor Operation
COMMERCIAL ROOM VENTILATOR
Features
• One piece construction – easy to install with no
mechanical linkage adjustment required.
• Exhaust air damper – built in with positive closed
position. Provides exhaust air capability to prevent
pressurization of tight buildings.
• Actuator motor – 24 volt, power open, spring return
with built in torque limiting switch.
Commercial Room Ventilator Sequence of Operation
On a call for occupied conditions, CRV opens to a
position as set by #1 Potentiometer (see Figure 11).
NOTE:
These sequence descriptions do not apply if
CO
2
controller is used. The CRV will control
according to observed CO
2
levels in the
conditioned space. Refer to information on
page 13.
MIS-3866
OUTDOOR AIR
RETURN AIR
SUPPLY AIR
COOLING COIL
EXHAUST AIR
CONDENSER AIR
ELIMINATOR
AIR FILTER
MIST
CONDENSER COIL