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TABLE 16
OPERATING SEQUENCE
G32V, CCB1 and Two-Speed Outdoor Unit
OPERATING MODE
SYSTEM DEMAND
SYSTEM RESPONSE
System
Condition
Thermostat
Demand
*Relative Humidity
(Efficiency
Plus
Lights)
****Compressor
Speed
Blower CFM
(COOL)
Comments
Normal operation
Y1
No demand. Acceptable
Low
55% of
HIGH COOL
Compressor demand and indoor
blower speed controlled by
Normal operation
Y2
No demand. Acceptable
High
HIGH COOL
blower speed controlled by
thermostat demand
Y1
No demand. Acceptable
Low
55% of
HIGH COOL
Call for humidity
removal during
Y1
Humidity level rises slightly
(1) above setpoint. Demand
initiated.
Low
55% of
HIGH COOL
Dehumidification mode does not begin
until after initial thermostat demand is
removal during
1st-stage cooling
demand
Demand
satisfied
Humidity level remains slightĆ
ly (1) above setpoint. DeĆ
mand continues.
Off
Off
until after initial thermostat demand is
satisfied and new cooling demand is iniĆ
tiated.
Y1
Humidity level remains slightĆ
ly (1) above setpoint. DeĆ
mand continues.
High
**77%/74% of
HIGH COOL
Significant increase in
humidity during
Y1
No demand. Acceptable
Low
55% of
HIGH COOL
If humidity rises significantly above setĆ
point, or if slide switch is moved signifiĆ
tl
it ill i
di t l
i t d
humidity during
thermostat cooling
demand.
Y1
Humidity level rises signifiĆ
cantly (2 or more) above setĆ
point. Demand initiated.
High
**77%/74% of
HIGH COOL
point, or if slide switch is moved signifi
cantly, unit will immediately go into deĆ
humidification mode (in presence of
thermostat demand).
Y1
Humidity level
above setpoint.
High
**77%/74% of
HIGH COOL
When humidity demand is satisfied,
Humidity demand satĆ
isfied during
Y1
Humidity level falls below
setpoint. No demand.
High
HIGH COOL
When humidity demand is satisfied,
blower immediately shifts to the COOL
CFM in order to hasten the end of the
cycle Unit can only shift out of high
isfied during
thermostat demand.
None
No demand. Acceptable
Off
Off
cycle. Unit can only shift out of high
speed compressor operation at beginĆ
Y1
No demand. Acceptable
Low
55% of
HIGH COOL
speed compressor operation at begin
ning of next cycle.
Call for humidity
Y2
No demand. Acceptable
High
HIGH COOL
Call for humidity
removal during 2nd
stage thermostat
demand
Y2
Humidity level rises slightly
(1) above setpoint. Demand
initiated.
High
**77%/74% of
HIGH COOL
Blower immediately changes speed in
response to thermostat demand.
demand
Y2
No demand. Acceptable
High
HIGH COOL
*Call for 1st stage
cooling after call for
None
Humidity level is slightly (1)
above setpoint.
Off
Off
Dehumidification mode (high speed
compressor) begins with next thermoĆ
cooling after call for
humidity removal.
Y1
Humidity level is slightly (1)
above setpoint.
Low
55% of
HIGH COOL
compressor) begins with next thermo
stat demand after initial demand is satĆ
isfied.
Call for 2nd stage
cooling after call for
None
Humidity level is slightly (1)
above setpoint.
Off
Off
Reduced blower speed (dehumidificaĆ
tion speed) begins immediately with
cooling after call for
humidity removal
Y2
Humidity level is slightly (1)
above setpoint.
High
**77%/74% of
HIGH COOL
tion speed) begins immediately with
thermostat demand
Call for cooling after
significant increase in
None
Humidity level is significantly
above setpoint (2 or more).
Off
Off
If humidity increases significantly over
setpoint, or if slide switch is moved, unit
immediately goes into dehumidification
significant increase in
humidity
Y1 or Y2
Humidity level is significantly
above setpoint (2 or more).
High
**77%/74% of
HIGH COOL
immediately goes into dehumidification
mode (in presence of thermostat deĆ
mand).
Humidity demand satĆ
isfied between thermoĆ
None
Humidity level is slightly (1)
above setpoint.
Off
Off
While unit is not operating (no thermoĆ
stat demand), slide switch is moved
down and back up Blower and com
isfied between thermo
stat demands (unit off
cycle).
Y1 or Y2
Humidity level falls below
setpoint. No demand.
High
HIGH COOL
down and back up. Blower and comĆ
pressor operate at high speed until next
thermostat demand.
Note - During mode of operation change from cooling to heating, indicating lights will not change until the first thermostat heatĆ
ing demand.
*IMPORTANT Ć 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 the humidity slide switch all the way down then back up to desired setpoint while the unit is 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 compresĆ
sor will latch into high speed after a Y1 demand has occurred for that period of time.
