Blodgett CB-E SERIES - Manual (Page 12)

12
PERIODIC MAINTENANCE (Continued)
Continue draining water for about fifteen (15) seconds, from control until water is clean.
Manually close valve. Recheck gauge glass. If water level has dropped significantly,
wait for the boiler to restore water level and pressure and repeat if necessary.
1. Observe that the water in gauge glass is clean and clear. Extreme murkiness in
water indicates inadequate water quality.
2. Safety valve should be tripped during operation once a week to assure that it
functions properly.
3. Keep all exposed cleanable areas of unit clean at all times.
CAUTION: Take extra caution when blowing down water level control or tripping
safety valve as extreme hot water and live steam are present.
DESCALING BOILER
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.
1. With boiler empty, close manual blowdown valve. If appliance is equipped with
Automatic Blowdown, turn water supply to appliance OFF. 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. If available, use the Optional Deliming assembly available
from your dealer.
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 ON
STEAM to attached appliances or to upper compartment.
7. Open both the blowdown and low water level control valves for complete drainage.
After boiler drains, close both valves.
8. Turn appliance switch ON. When boiler is completely filled turn power switch OFF.
This will rinse and drain boiler. Appliances 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.