PG
12
PG
12
PG
13
Step-by-Step Wiring Diagrams
WIRES
2 Wire Heat GAS MILLIVOLT or 24VAC system
STEP 1 - Connect the R (or RH) wire to the RH terminal. This connects the heat power.
STEP 2 - Connect the W wire to the W terminal. This connects the heat.
STEP 3 - Set HVAC selection switches to NORMAL and GAS.
Your heater is now connected to the 3M-50.
Please Go To Page 6
WIRES
3 Wire Heat
STEP 1 - Connect the R (or RH) wire to the RH terminal. This connects the heat power .
STEP 2 - Connect the W wire to the W terminal. This connects the heat.
STEP 3 - Connect the G wire to the G terminal on the thermostat. This connects the fan.
STEP 4 - Set HVAC selection switches to NORMAL and:
If you have gas or oil heat, set the HEAT TYPE to GAS.
If you have electric heat, set the HEAT TYPE to ELEC.
Your system is now connected to the 3M-50.
Please Go To Page 6
W
R
C
C H B O
W
2
W
Y Y
2
RH RC G A
RADIO POWE
R
W R
G
C
HVAC SYSTEM
REMOTE POWE
R
C H B O
W
2
W
Y Y
2
RH RC G A
AC SYSTEM
HV
Thermostat
Terminals
Thermostat
Terminals
