172-65316M-08 (MB12A/MB12AF/MB12B/MB12BF) 7 Oct 2021
14
Wiring Procedures (St Optional Space Heater Model)
Connect the space heater as shown in the diagrams below.
Temperature is controlled using a thermo-switch.
The diagram shows standard wiring with the space heater option. The options listed
below also have the H1 and H2 terminals and are wired in the same manner:
•
St Auxiliary C Space Heater
•
Relay + Space Heater
•
Relay + Auxiliary C Space Heater
Control Switch
AC
Power
Source
Internal Circuitry