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47
Control Board (
cont.
)
DIP SWITCH SETTINGS
A DIP switch is located on the Main Control Board, as shown in the diagram below. Settings are unit-specific,
depending on equipped options. The table below provides descriptive information about each switch setting.
Fan Con/Cyc for
heating
heating
1: Hydronic
2: Heat Pump
3: Electric Heat
4: Gas Heat
5: Freeze Protect
6: Restart
7: Reserved
8: Fan CON/CYC for
1 2 3
1
4 6 7
5
8
ON
S1
ON
ECE
DIP SWITCH
A
B
D
C
E
Figure 44
Control Board - DIP Switch
DIP SWITCH
DESCRIPTION
FUNCTION
INPUT/OUTPUT
SW1
HYDRONIC
ON = ENABLES OPERATION OF N/O AND N/C TERMINALS (see A above)
OFF = DISABLES OPERATION OF N/O AND N/C TERMINALS (see A above)
LINE VOLTAGE/24V
SW2
HEAT PUMP
ON = ENABLES POWER TO L2 (N) AND REV TERMINALS (see B above)
OFF = DISABLES POWER TO L2 (N) AND REV TERMINALS (see B above)
LINE VOLTAGE
SW3
ELECTRIC HEAT
ON = ENABLES POWER TO ELEC-N RELAY TERMINALS (see C above)
OFF = DISABLES POWER TO ELEC-N RELAY TERMINALS (see C above)
LINE VOLTAGE
SW4
GAS HEAT
ON = ENABLES POWER TO GAS TERMINAL (see D above)
OFF = DISABLES POWER TO GAS TERMINAL (see D above)
24 VAC
SW5
FREEZE PROTECT
ON = ENABLES IDC TEMP MONITORING FOR MIN. TEMP (see E above)
OFF = DISABLES IDC TEMP MONITORING FOR MIN. TEMP (see E above)
IDC SENSOR
SW6
RESTART
ON = ENABLES POWER FAILURE MEMORY SAVE FUNCTION
OFF = DISABLES POWER FAILURE MEMORY SAVE FUNCTION
N/A
SW7
RESERVED
Not Used
Not Used
SW8
FAN CON/CYCLE
ON = ENABLES CONTINUOUS FAN OPERATION
OFF = DISABLES CONTINUOUS FAN OPERATION
N/A
