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flyfishinghocke
Feb 21, 2010, 02:29 PM
The wiring harness coming from the furnace is 5 wires;
Wire colors 1 Red - 2 White/Green stripe -3 Blue -4 Green- 5 Yellow

The old thermostat was 7 terminals and this is the hook up.
Terminal G-green wire
Terminal O-empty
Terminal B-yellow wire
Terminal Y-blue wire and jumpered to terminal W
TerminalW-jumpered from Y terminal with the blue wire
Terminal C-white/green stripe wire
Terminal R-red wire

NOMA programmable model 52-2558-8 new thermostat has 9 terminals
H2
H1
B
O
RC
RH
G
Y
W

Please help and tell me the 5 wire connections to the new thermostat and any jumpers required.
The furnace is Whalen Company Model VI-A-802

Thanks in advance Jeff

flyfishinghocke
Feb 21, 2010, 02:38 PM
The wiring harness coming from the furnace is 5 wires;
Wire colors 1 Red - 2 White/Green stripe -3 Blue -4 Green- 5 Yellow

The old thermostat was 7 terminals and this is the hook up.
Terminal G-green wire
Terminal O-empty
Terminal B-yellow wire
Terminal Y-blue wire and jumpered to terminal W
TerminalW-jumpered from Y terminal with the blue wire
Terminal C-white/green stripe wire
Terminal R-red wire

NOMA programmable model 52-2558-8 new thermostat has 9 terminals
H2
H1
B
O
RC
RH
G
Y
W

Please help and tell me the 5 wire connections to the new thermostat and any jumpers required.
The furnace is Whalen Company Model VI-A-802

Thanks in advance Jeff