Table 26. 3-Compressor Humiditrol Default Operation (using 4Stage Thermostat with Zone Sensor)
Demands
Trigger
G
Unoccupied
G
Occupied
Y1
Y2
Damper
position and
maximum
Y2
position and
time
expired.
Y3
Y4
Y1
Y2
Y3
Y4
Dehum
Y1
Dehum
Y2
Dehum
Y3
Dehum
Y4
Dehum
W
Condition
Compressor
OAS
1
2
3
OFF OFF OFF
OFF OFF OFF
Suitable
OFF OFF OFF
Suitable
OFF OFF OFF
Suitable
ON
OFF OFF
Suitable
ON
ON
OFF
Suitable
ON
ON
ON
Not
ON
OFF OFF
Suitable
Not
ON
ON
OFF
Suitable
Not
ON
ON
ON
Suitable
Not
ON
ON
ON
Suitable
ON
ON
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF OFF OFF
Unit Operation
Blower Speeds
Cool
Cool
Cool
Cool
Vent
C1
C2
C3
C4
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Page 32
Free Air Damper
(Economizer)
Heat
Closed
OFF
Minimum
OFF
Modulate up to
OFF
Maximum
Modulate up to
OFF
Maximum
Maximum
OFF
Maximum
OFF
Maximum
OFF
Minimum
OFF
Minimum
OFF
Minimum
OFF
Minimum
OFF
Minimum
Minimum
Minimum
Minimum
OFF
Minimum
OFF
X
Minimum
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF