ICP A3 Series, Service And Technical Support Manual

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SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: (F/G)9MVE
Specifications subject to change without notice.
440 04 4801 03 13
Figure 5 Furnace Setup Switch Description
RCL 1
LHT 2
LHR 3
C/E
4
CFM 5
TST 6
OFF 7
DLY 8
SW1
SETUP
SWITCH
SWITCH
NAME
NORMAL
POSITION
DESCRIPTION OF USE
SW 1 ­ 1
S tatus C ode
R eco v ery
O FF
T urn ON to retrie v e u p to 7 stored status codes for troubleshooting assistance when R
thermostat lead is disconnected.
SW 1 ­ 2
Low Heat
Only
(A da p ti v e
Heat Mode
when SW 1 ­ 2
is O FF)
O FF
W hen SW 1 ­ 2 is O FF allows two-stage o p eration with a single stage thermostat. T urn
ON when using two-stage thermostat to allow Low Heat o p eration when R to W / W 1
closes and High Heat o p eration when R to W / W 1 and W 2 close.
SW 1 ­ 3
Low Heat
R ise
A d j ustment
O FF
T urn ON to increase Low Heat airflow by 18 p ercent. T his com p ensates for increased
return air tem p erature caused with by p ass humidifier.
SW 1 ­ 4
C omfort/
E fficiency
A d j ustment
ON
T urn ON to decrease Low Heat airflow by a pp ro x imately 7 p ercent and High Heat air ­
flow by a pp ro x imately 1 0 p ercent for ma x imum comfort.
SW 1 ­ 5
CF M p er ton
ad j ust
O FF T urn ON for 4 00 CF M p er ton , T urn O FF for 35 0 CF M p er ton. S ee also SW 2.
SW 1 ­ 6
C om p onent
S elf T est
O FF
T urn ON to initiate C om p onent S elf T est for troubleshooting assistance when R
thermostat lead is disconnected. T urn O FF when S elf T est is com p leted.
SW 1 ­ 7 &
SW 1 ­ 8
B lower O FF
delay
ON or O FF
B lower Off D elay time – ad j ustable 90 seconds to 18 0 seconds. S ee table in
A d j ustments section or refer to unit wiring diagram.
TWN 1
CFM 2
3
4
5
6
7
8
SW2
CF
AC
SW 2 ­ 1 T wining O FF
A llows for selection of furnace Main ( O FF) or S econdary ( ON ) when T winned furnace
setu p is re q uired. S ee k it instructions for further directions on installation and setu p .
SW 2 ­ 2
CF M p er ton
A d j ust
O FF
A llows additional CF M p er ton selections when used with SW 1 ­ 5
325 CF M p er ton ( nominal ) when SW 2 ­ 2 ON and SW 1 ­ 5 O FF
35 0 CF M p er ton ( nominal ) when SW 2 ­ 2 O FF and SW 1 ­ 5 O FF
37 0 CF M p er ton ( nominal ) when SW 2 ­ 2 ON and SW 1 ­ 5 ON
4 00 CF M p er ton ( nominal ) when SW 2 ­ 2 O FF and SW 1 ­ 5 ON
S ee A ir D eli v ery T ables for model s p ecific CF M v s. static p ressure
SW 2 ­ 6 , 7 , 8
AC
(C ooling
A irflow )
O FF
T he AC setu p switches select desired cooling or high stage cooling ( two-stage units )
airflow. S ee C ooling A ir D eli v ery T ables for s p ecific switch settings.
SW 2 ­ 3 , 4 , 5
CF
(C ontinuous
F an )
O FF
T he CF setu p switches select desired C ontinuous F an A irflow
T he CF switch p osition is the low cooling airflow selection for two-stage cooling units.
T he CF M v alues are shown in the A ir D eli v ery T ables below for SW 2 settings. SW 2 ­ 3 , 4 ,
5 cannot be set for airflow higher than SW 2 ­ 6 , 7 , 8.
S ee C ontinuous F an A ir F low T able for s p ecific switch settings.
BASED ON 350 CFM/TON (Factory Default: SW1 − 5 = OFF, SW2 − 2 = OFF)
Model
Size
ON ON ON
ON ON ON ON ON
5 4 3 5 4 3 5 4 3 5 4 3 5 4 3 5 4 3 5 4 3 5 4 3
040-10 525 525 700 875 875 875 875 875
040-12 525 525 700 875 1050 1050 1050 1050
060-12 525 525 700 875 1050 1050 1050 1050
060-14 525 525 700 875 1050 1225 1225 1225
080-16 525 525 700 875 1050 1225 1400 1400
080-20 700 700 875 1050 1225 1400 1750 1750
100-20 700 700 875 1050 1225 1400 1750 1750
120-22 875 700 875 1050 1225 1400 1750 1925