18
VENT HOOD
Twice a year check the venting system (hood); remove any obstructions; and clean as
necessary.
BOILER DESCALING INSTRUCTIONS
It is recommended that the boiler be checked every 90 to 120 days for scale build up.
Regular maintenance should be carried out at this time.
If the boiler is descaled, a new Anode should be installed in the boiler to help extend its
life.
1. With boiler empty, close manual blowdown valve. If appliance is equipped with
automatic blowdown, turn water supply OFF to appliance. Turn power switch ON.
This will energize and close blowdown valve.
2. Remove 3/4" pipe plug from fitting on left front of boiler.
3. Insert appropriate hose or tube through fitting and pour in (½) half gallon (U.S.) of
CLR Descaling solution. Or use the Optional Deliming assembly DPA-1 available
from your dealer. For appliances equipped with CSD-1, descaling solution must be
introduced through hand hole.
4. Replace 3/4" pipe plug securely.
5. Open water supply to appliance allowing water to fill boiler to required level.
6. Let appliance cycle, allowing two hours for descaling and cleaning.
DO NOT TURN
STEAM ON TO CONNECTED APPLIANCES OR TO UPPER COMPARTMENTS.
7. Open both the blowdown and low water level control valves for complete drainage.
Then close both valves. For appliances equipped with automatic blowdown, turn
OFF power switch and open low water control valve. This will allow complete
drainage. Once drained close water level control valve.
8. Turn appliance switch ON. When boiler is completely filled, turn power switch OFF.
This will rinse and drain boiler. Appliance with manual blowdown valve must be
opened to drain.
9. Complete Step 8 twice to assure boiler is completely rinsed.
10. Appliance is now ready for use.