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INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
MAINTENANCE
REMOVAL OF LIME SCALE DEPOSITS
The interior of the steam boiler should be inspected at least twice a year by your authorized
servicer to determine whether the boiler needs to be delimed. The servicer should perform any
necessary deliming procedure. See descaling instructions.
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.
PART NUMBER 10072R1
21
2005-09-21
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