H
IZ®i
SETUP SWITCH
SWI-1
SWITCH NAME
SW1-2
SW1-3
SW1-4
SW1-5
SW1-6
SW1-7 & SW1-8
SW4-3
Furnace Setup Switch Description
Status Code Recovery
Low Heat Only
(Adaptive Heat Mode when
SW1-2 is OFF)
Low Heat Rise Adjustment
Comfort/Efficiency Adjustment
CFM per ton adjust
Component Self Test
Blower OFF delay
Intermediate
CFM per ton Adjust
NORMAL POSITION
OFF
OFF
OFF
ON
OFF
OFF
ON or OFF
OFF
DESCRIPTION OF USE
.......,,,,,,,,,,,,,,
I'urn ON to retrieve up to 7 stored status codes for
iroubleshooting assistance when R thermostat
ead is disconnected.
_Vhen SWl-2 is OFF allows low heat operation witf
single stage thermostat. Turn ON when using
Ewo-stage thermostat to allow Low Heat operation
Nhen R to W/Wf closes and High Heat operation
Nhen R to W/W1 and W2 close.
I'urn ON to increase Low Heat airflow by 18
3ercent. This compensates for increased return ail
Eemperature caused with bypass humidifier. This
€lso increases the low heat inducer speed 15
3ercent.
I'urn ON to decrease low heat airflow by 7 percent.
end high heat airflow 10 percent for maximum
comfort.
I'urn ON for 400 CFM per ton, Turn OFF for 350
_FM per ton. See also SW4.
I'urn ON to initiate Component Self Test for
:roubleshooting assistance when R thermostat
ead is disconnected. Turn OFF when Self Test is
,'ompleted.
3lower Off Delay time - adjustable 90 seconds to
180 seconds. See table in Adjustments section or
"efer to unit wiring diagram.
&llows additional CFM per ton selections when
Jaed with SW 1-5
325 CFM per ton (nominal) when SW 4-3 ON and
-3W 1-5 OFF
350 CFM per ton (nominal) when SW 4-3 OFF and
-3W 1-5 OFF
370 CFM per ton (nominal) when SW4-3 ON and
-3W 1-5 ON
_,00 CFM per ton (nominal) when SW 1-5 ON and
-3W4-3 OFF
See Air Delivery Tables for model specific CFM
_a. static pressure
1 --
(o
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m
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AC
AIR CONDITIONING (A/C) SETUP SWITCHES
3W 2, AC (Cooling Airflow) SETUP SWITCHES
I-he AC setup switch selects desired cooling or high stage cooling (two stage units) airflow.
3ee Air Delivery Tables for specific switch settings
CONTINUOUS FAN (CF) SETUP SWITCHES
1 _zO
m mF"l co
CF
i
iSW 3, CF (Continuous Fan) SETUP SWITCHES
!The CF setup switch selects desired Continuous Fan Airflow
l-he CF switch position is the low cooling airflow selection for two stage cooling units.
Fhe CFM values in the Air Delivery Tables for SW 3 settings are the same as SW 2 settings.
!SW 3 cannot be set for airflow higher than SW 2
3ee Air Delivery Tables for specific switch settings
A11364 A2V96
Fig. 55 - Furnace Setup Switches and Description (Continued)
d8
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