INSTALLATION AND OPERATION MANUAL, GAS FIRED PRESSURELESS COOKER WITH
DIRECT STEAM KETTLES, MODELS GCX-2-6, GCX-2-10, GCX-2-6-6 AND GCX-2-6-10
PART NUMBER 10122R1
28
2003-10-09
BOILER DESCALING INSTRUCTIONS
It is recommended that the boiler should be checked every 90 to 120 days for scale build up.
Regular maintenance should be carried out at this time.
If the boiler has been 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, allow two hours for descaling and cleaning. DO NOT TURN STEAM
ON TO THE COMPARTMENTS.
7.
Open both the blowdown and low water level control valves for complete drainage and then
close both valves.
Appliance 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.
