International comfort products F8MVL Installation Instructions Manual page 33

SETUP
SWITCH
SW1-1
RCL 1
LHT 2
SW1-2
LHR 3
C/E 4
SW1-3
CFM 5
TST 6
SW1-4
OFF 7
SW1-5
DLY
8
SW1-6
SW1
SW1-7 &
SW1-8
SW2-1
TWN 1
SW2-2
CFM 2
3
4
5
SW2-6, 7, 8
6
7
8
SW2-3, 4, 5
SW2
441 01 2122 01
Table 9 – Furnace Setup Switch Description
NORMAL
SWITCH NAME
POSITION DESCRIPTION OF USE
Status Code
OFF
Recovery
Low Heat Only
(Adaptive Heat
OFF
Mode when
SW1-2 is OFF)
Low Heat Rise
OFF
Adjustment
Comfort/Efficiency
ON
Adjustment
CFM per ton adjust OFF
Component
OFF
Self Test
Blower OFF ON
delay or OFF
Twining OFF
CFM per ton
Adjustments
OFF
AC (Cooling
OFF
Airflow)
CF OFF
(Continuous Fan)
Specifications are subject to change without notice.
Turn ON to retrieve up to 7 stored status codes for troubleshooting assistance
when R thermostat lead is disconnected.
When SW1-2 is OFF allows two-stage operation with a single stage thermo-
stat. Turn ON when using two- stage thermostat to allow Low Heat operation
when R to W/W1 closes and High Heat operation when R to W/W1 and W2
close.
Turn ON to increase Low Heat airflow by 18 percent. This compensates for
increased return air temperature caused with bypass humidifier.
Turn ON to decrease Low Heat airflow by approximately 7 percent and High
Heat airflow by approximately 10 percent for maximum comfort.
Turn ON for 400 CFM per ton, Turn OFF for 350 CFM per ton. See also SW2.
Turn ON to initiate Component Self Test for troubleshooting assistance when
R thermostat lead is disconnected. Turn OFF when Self Test is completed.
Blower Off Delay time – adjustable 90 seconds to 180 seconds. See table in
Adjustments section or refer to unit wiring diagram.
Allows for selection of furnace Main (OFF) or Secondary (ON) when Twinned
furnace setup is required. See kit instructions for further directions on installa-
tion and setup.
Allows additional CFM per ton selections when used with SW1-5
325 CFM per ton (nominal) when SW2-2 ON and SW1-5 OFF
350 CFM per ton (nominal) when SW2-2 OFF and SW1-5 OFF
370 CFM per ton (nominal) when SW2-2 ON and SW1-5 ON
400 CFM per ton (nominal) when SW2-2 OFF and SW1-5 ON
See Air Delivery Tables for model specific CFM vs. static pressure
The AC setup switches select desired cooling or high stage cooling (two
stage units) airflow. See Cooling Air Delivery Tables for specific switch set-
tings.
The CF setup switches select desired Continuous Fan Airflow
The CF switch position is the low cooling airflow selection for two stage cool-
ing units.
The CFM values are shown in the Air Delivery Tables below for SW2 settings.
SW2-3, 4, 5 cannot be set for airflow higher than SW 2-6, 7, 8.
See Continuous Fan Air Flow Table for specific switch settings.
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