37
Table 25. 2-Compressor Humiditrol Default Operation (using 3Stage Thermostat DDC with Zone Sensor)
Demands Condition Unit Operation
Free Air
Damper
(Economizer)
Reheat
Valve 1
Thermostat
Humidity
Sensor
OAS
Compressor Blower Speeds
1 2 Vent
Cool
C1
Cool
C2
Heat
G Unoccupied OFF OFF X Closed OFF
G Occupied OFF OFF X Minimum OFF
Y1 Suitable OFF OFF X
Modulate up to
Maximum
OFF
Y2 Suitable OFF OFF X
Modulate up to
Maximum
OFF
Y2
Damper position
and maximum
position and time
expired.
Suitable ON OFF X Maximum Open OFF
Y3 Suitable ON ON X Maximum Open OFF
Y1 Not Suitable ON OFF X Minimum OFF
Y2 Not Suitable ON ON X Minimum OFF
Y3 Not Suitable ON ON X Minimum OFF
Dehum ON OFF X Minimum ON
Y1 Dehum ON ON X Minimum ON
Y2 Dehum ON ON X Minimum OFF
Y3 Dehum ON ON X Minimum OFF
W OFF OFF X Minimum OFF
Table 26. 3-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
G Unoccupied OFF OFF OFF X Closed OFF OFF
G Occupied OFF OFF OFF X Minimum OFF OFF
Y1 Suitable OFF OFF OFF X
Modulate up to
Maximum
OFF OFF
Y2 Suitable OFF OFF OFF X
Modulate up to
Maximum
OFF OFF
Y2
Damper
position and
maximum
position and
time expired.
Suitable ON ON OFF X Maximum OFF OFF
Y1
Not
Suitable
ON ON OFF X Minimum OFF OFF
Y2
Not
Suitable
ON ON ON X Minimum OFF OFF
Dehum ON ON OFF X Minimum ON ON
Y1 Dehum ON ON ON X Minimum ON ON
Y2 Dehum ON ON ON X Minimum OFF OFF
W OFF OFF OFF X Minimum OFF OFF