INSTALLATION & OPERATION MANUAL 10104 REV 3 (08/22)
PAGE
13
OF 20
Oyster Bars, Gas Boilers
Periodic Maintenance
WARNING
DO NOT allow water near the electrical components.
At the end of the day, turn the Main Power Switch OFF (automatic blowdown drains the boiler tank) or if equipped
with manual blowdown valve, open. Wash exterior with mild detergent and warm water, rinse, and wipe dry. Do not
use steel wool on stainless steel surfaces.
Maintenance
Removal of Lime Scale Deposits
The interior of the steam boiler should be inspected at least twice a year by your authorized service provider to determine
whether the boiler needs to be delimed. The service provider should perform any necessary deliming procedure. See
descaling instructions.
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 (1/2) 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
.
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.
WARNING
Disconnect the power supply to the appliance before cleaning or servicing.
1. If water in sight glass is not clear and appears murky, this indicates poor water quality and may cause control
failure. SEE WATER QUALITY STATEMENT, page 4.
2. Safety valve should be tripped during operation once a week to ensure that it is functioning properly.
3. Clean around burners and orifices if lint has accumulated.
4. Visually ensure carry over ports are unobstructed.
5. Visually check that the flue is not obstructed.
Cleaning
