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TABLE 14
G32V−4 UNITS WITH CCB1, & TWO−SPEED OUTDOOR UNIT OPERATING SEQUENCE
Operating Sequence System Demand System Response
System
Condition
Step
Thermostat
Demand
*Relative Humidity
(EfficiencyPlus Lights)
***Compressor
Speed
Blower CFM
(COOL)
Comments
Normal o
eration
1 Y1 Acceptable (None) Low
55% of
HIGH COOL
Compressor demand and indoor
blower s
eed follow thermostat
2 Y2 Acceptable (None) High HIGH COOL
demand
1 Y1 Acceptable (None) Low
55% of
HIGH COOL
Call for humidity
removal during 1st
2 Y1
Change to slightly
over setpoint (1)
Low
55% of
HIGH COOL
Dehumidification mode begins with
next thermostat demand after initial
stage thermostat
demand
3
Demand
satisfied
Slightly over setpoint (1) Off Off
next thermostat demand, a
ter initial
thermostat demand is satisfied.
4 Y1 Slightly over setpoint (1) High
**77%/74% of
HIGH COOL
Significant increase
1 Y1 Acceptable (None) Low
55% of
HIGH COOL
If humidity increases significantly
over setpoint, or if slide switch is
moved significantly unit will immedi-
in humidity during
thermostat demand.
2 Y1
Change to significantly
over setpoint (2 or more)
High
**77%/74% of
HIGH COOL
move
s
gn
can
y, un
w
mme
-
ately go into dehumidification mode
(in presence of thermostat demand).
1 Y1 Over Setpoint High
**77%/74% of
HIGH COOL
When humidit
demand is satisfied
Humidity demand
satisfied during
2 Y1
Change to Acceptable
(None)
High HIGH COOL
,
blower immediately shifts to the
HIGH COOL CFM in order to hasten
the end of the cycle Unit can only
thermostat demand.
3 None Acceptable (None) Off Off
e en
o
e cyc
e.
n
can on
y
shift out of high speed compressor
4 Y1 Acceptable (None) Low
55% of
HIGH COOL
operation at beginning of next cycle.
1 Y2 Acceptable (None) High HIGH COOL
a
or
um
y
removal during 2nd
stage thermostat
2 Y2
Change to slightly
over setpoint (1)
High
**77%/74% of
HIGH COOL
Blower immediately changes speed
in response to thermostat demand.
demand
3 Y2 Acceptable (None) High HIGH COOL
*Call for 1st sta
e
1 None Slightly over setpoint (1) Off Off Dehumidification mode (high speed
compressor) begins with next ther
cooling after call for
humidity removal.
2 Y1 Slightly over setpoint (1) Low
55% of
HIGH COOL
compressor
begins with next ther-
mostat demand after initial demand is
satisfied.
Call for 2nd sta
e
1 None Slightly over setpoint (1) Off Off
Reduced blower s
eed
dehumidifi-
cooling after call for
humidity removal
2 Y2 Slightly over setpoint (1) High
**77%/74% of
HIGH COOL
cation speed) begins immediately
with thermostat demand
Call for cooling after
1 None
Significantly over setpoint
(2 or more)
Off Off
If humidity increases significantly
over setpoint, or if slide switch is
moved unit immediately goes into
signi
icant increase
in humidity
2 Y1 or Y2
Significantly over
setpoint (2 or more
High
**77%/74% of
HIGH COOL
moved, unit immediately goes into
dehumidification mode (in presence
of thermostat demand).
Humidity demand
1 None Over setpoint (1 or more) Off Off
While unit is not operating (no ther-
mostat demand
, slide switch is
satis
ied between
thermostat demands
(unit off cycle).
2 Y1 or Y2
Change to
acceptable (None)
High HIGH COOL
,
moved down and back up. Blower
and compressor operate at high
speed until next thermostat demand.
Note − When changing unit mode of operation from cooling to heating, indicating lights that are on will stay on until the first ther-
mostat heating demand.
*IMPORTANT - If power to unit is turned on with CCB1 calling for humidity removal, outdoor unit may be locked into high speed
indefinitely. To reset, move humidity slide switch all the way down then back up to desired setpoint (with unit running)
** Reduced blower speed is 77% of COOL for the V3 units; 74% of COOL for V5.
***If the two−speed control on a two−speed outdoor unit is set for LATCH 2 (15 minutes) or LATCH 3 (30 minutes), the compressor
will latch into high speed after a Y1 demand has occurred for that period of time.
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