Maintenance; Current Rating - Field Controls WMO-1 Manual

MAINTENANCE

NOTE: For continued safe operation, the appliance-switch combination is required to be inspected and
maintained annually by a qualifi ed agency.
1. Disconnect power to the appliance.
2. Remove the two screws holding on the WMO-1 blocked vent switch assembly cover.
3. Remove the cover.
4. Remove the two screws holding the control box to the heat transfer tube assembly. The control box
slides, unlocking it from the heat transfer tube assembly.
DO NOT DENT OR SCRATCH THE SURFACE OF THE THERMAL SWITCH. IF THE THERMAL SWITCH IS DAMAGED,
REPLACEMENT IS REQUIRED.
5. Carefully remove any buildup from the thermal switch surface.
6. Clear and remove any buildup or obstruction inside the heat transfer tube.
7. Remount, lock and refasten the control box with the two screws removed in step 4.
8. Reattach the assembly cover with
screws removed in step 2.
9. Re-establish power to the appliance.
120 VAC
240 VAC
page 3
Diagram B- Riello

CURRENT RATING

10 FL AMPS 60 LR AMPS
5 FL AMPS 30 LR AMPS