S9240F1004 MODULATING HOT SURFACE IGNITION INTEGRATED FURNACE CONTROL
9
69-2088—01
DIP Switch S2 Settings – Cooling Airflow
DIP Switch S2 is used to adjust the cooling speed and profile.
Refer to Fig. 4 on page 7 for location of DIP switch S2.
The default factory settings (all OFF) are shown in Fig. 6 and
indicated in Bold in Table 6.
To change any setting, first disconnect the power, then set
SW8
through
SW13
according to Table 6.
.
Fig. 6. DIP Switch S2 - shown with factory default
settings; all OFF.
SW8-9: COOLING FAN SPEED
The fan speed during cooling is factory-set to High.
SW10-11: COOLING FAN SPEED ADJUSTMENT (CFM)
The fan CFM during cooling is factory-set to normal (Base
Tap).
SW12-13: COOLING PROFILE
The fan profile during cooling is factory-set to 30 seconds at
50%, 7.5 minutes at 82%, run at 100%, and with a 30 second
Off delay at 50%. Fig. 7 illustrates the factory-set cooling
profile. The fan speed ramps up and down during speed
changes.
.
Fig. 7. Fan cooling speed ramp up and ramp down profile
(factory default shown).
DIP SWITCH S2
M28152
COOLING PROFILE
COOL SPEED
89
11
10
12
13
COOL SPEED ADJUSTMENT
ON
M28161
30
TIME (SECONDS)
F
A
N
S
P
E
E
D
50%
82%
100%
30
1
1 FAN SPEED AS A PERCENT OF MAXIMUM.
450
Table 6. DIP Switch S2 Settings – Cooling Airflow.
Description
Individual Switches
SW8
SW9
SW10
SW11
SW12
SW13
High Cool Speed (circulator)
OFF
OFF
Medium-low Cool Speed (circulator)
OFF
ON
Medium-high Cool Speed (circulator)
ON
OFF
Low Cool Speed (circulator)
ON
ON
Normal CFM - Base tap
OFF
OFF
Decrease Cool speed CFM by 10%
OFF
ON
Increase Cool speed CFM 10%
ON
OFF
ECM Test Mode (motor slew rates disabled)
ON
ON
Cooling Profile -
On: 30 seconds at 50%, 7.5 minutes at 82%, then run at 100%
Off: 30 second Off Delay at 50%
OFF
OFF
Cooling Profile -
On: No On Delay (run at 100%)
Off: 60 second Off Delay at 100%
OFF
ON
Cooling Profile -
On: 7.5 minutes at 82%, then run at 100%
Off: no Off Delay
ON
OFF
Cooling Profile - no On or Off Delays
ON
ON