part nos 45720 and 45725 - Venmar

8. Control Devices (cont’d)8.3 OTHER FEATURESFURNACE INTERLOCK (FOR FORCED AIR HEATING SYSTEM)The furnace can be interlocked so that it will run simultaneously with the ERV or HRV to ensure proper distribution offresh air throughout the house.PERMANENT MEMORYOur Altitude and Deco-Touch controls have a default memory feature in the event of a power outage. Even the date ofthe last service reminder is maintained as a convenience to the homeowner.NOTE: If the power failure duration is more than 4 hours, the day and hour settings must be reprogrammed (onAltitude control only).CONTROL UPGRADESAll controls can be used on any unit, so a Venta control can be upgraded to a Deco-touch or Altitude in the future.9. Installation of the Controls9.1 DIMENSIONS AND SPECIFICATIONS (MAIN CONTROLS)VOLTAGE:ALTITUDE12 volts DCVOLTAGE:DECO-TOUCH12 volts DC4¼" (107 mm)1"(26 mm)2¾" (70 mm)4½" (114 mm)4" (102 mm)VC0105AFRONT VIEWSIDE VIEWVC0118AVOLTAGE:5" (127 mm)VENTA12 volts DC1³/8"(35 mm)5" (127 mm)VC0016AFRONT VIEWSIDE VIEW18