40
Table 29. 4-Compressor Humiditrol Default Operation (using 2stage Thermostat)
Demands Condition Unit Operation
Free Air Damper
(Economizer)
Reheat
Valve 1
Reheat
Valve 2
Thermostat
Humidity
Sensor
Trigger OAS
Compressor
Blower Speeds
Vent
Cool
C1
Cool
C2
Cool
C3
Cool
C4
Heat
1 2 3 4
G Unoccupied OFF OFF OFF OFF X Closed OFF OFF
G Occupied OFF OFF OFF OFF X Minimum OFF OFF
Y1 Damper position Suitable OFF OFF OFF OFF X
Modulate up to
Maximum
OFF OFF
Y2 Damper position Suitable OFF OFF OFF OFF X
Modulate up to
Maximum
OFF OFF
Y2
Damper position
and maximum
position and
time.
Suitable ON ON OFF OFF X Maximum OFF OFF
Y1
Not
Suitable
ON ON OFF OFF X Minimum OFF OFF
Y2
Not
Suitable
ON ON ON ON X Minimum OFF OFF
Dehum ON ON OFF OFF X Minimum ON ON
Y1 Dehum ON ON ON ON X Minimum ON ON
Y2 Dehum ON ON ON ON X Minimum OFF OFF
W OFF OFF OFF OFF X Minimum OFF OFF