McQuay PDAC User Manual

IM 882 / Page 18 of 36
Compressor
Low Fan
t
On
Off
On
Off
30 secs.
30 secs.
8 mins.
4 mins.
t
Figure 21. Zone A
Compressor
Low Fan
12 mins.
On
Off
On
Off
*
t
t
*
= Zone Determination Time
Figure 22. Zone B
Figure 23. Zone C
Compressor
Low Fan
t
On
Off
On
Off
30 secs.
30 secs.
6 mins.
6 mins.
t
*
= Zone Determination Time
*
Figure 24. Zone D
Compressor
Fan
t
On
Off
On
Off
t
12 mins.
*
*
= Zone Determination Time
Cool Dry Mode
Select the Cool Dry Mode when the standard Cool Mode
does not provide sufcient dehumidication. In Cool Dry
Mode, the unit must run in Cool Mode for 12 minutes
or until the temperature differential between the room
temperature and the set point is less than 2°F. This will
also occur after a Cold Start or a Mode change from Cool
to Cool Dry. During this time, the fan will operate in the
Mode and Speed selected.
Until one or both of the above conditions are met,
the control will determine which Dry Mode (Zone) is
initiated based on the temperature differential between
the room temperature (Tr) and the temperature set point
(Ts):
Note: Cool Dry is not available with Sleep Function.
Figure 21. if Tr - Ts > 4°F, operation will be in Zone A
Figure 22. if 2°F < Tr - Ts < 4°F, operation will be in
Zone B
Figure 23. if 0°F < Ts - Ts < 2°F, operation will be in
Zone C
Figure 24. if Ts - Tr > 5°F, operation will be in Zone D
The other temperature ranges are dead bands for zone
stability.
Modes of Operation-Description
Standard Digital Touchpad Control

McQuay PDAC Specifications

General

Brand	McQuay
Model	PDAC
Category	Air Conditioner
Language	English