Maintenance; Troubleshooting; The Information Contained In This General Maintenance; Low Water Level - Blodgett KTT-E SERIES Installation Operation & Maintenance

Troubleshooting

GENERAL MAINTENANCE
No preventive maintenance is required other than adher-
ing to the Cleaning Procedure instructions.

LOW WATER LEVEL

Proper water level must be maintained within the jacket
for the kettle to operate. Depletion of water may occur
from excessive opening of, or leakage through the safety
relief valve.
If water is below required operating level, either initially
at start-up or during use, the kettle will automatically shut
off, and the LOW WATER signal light will come on.
In order for the kettle to operate, the following procedure
must be followed:
1. Trip the safety relief valve lever to relieve all pressure
from the kettle jacket.
2. At exterior rear of kettle jacket remove nut from Air
Vent.
3. Insert funnel into Air Vent opening and slowly add the
indicated amount of distilled water for:
KTT-6E - Add 50 oz. (1.5 litres)
KTT-10E & KTT-12E - Add 100 oz. (3 litres)
4. Replace Air Vent nut.
5. Follow Air Venting Instructions below.
6. Continue normal Operating Procedure of kettle.

VENTING INSTRUCTIONS

Check pressure gauge when kettle is cold. Gauge should
be in the green vacuum zone. If not, air is present which
must be vented (removed) for proper heating. Use the fol-
lowing procedures to vent air.
1. With an empty kettle, place power switch to the ON
position.
2. Set temperature control thermostat to maximum.
Heat kettle until heat indicator light goes off.
3. Using a 7/16" wrench, open bleed vent one full turn
for 10 seconds and then close.
4. Cool kettle. Check for proper vacuum in the green
vacuum zone. If reading is not low enough, repeat
entire procedure, steps 1 to 3.

MAINTENANCE

SAFETY VALVE MAINTENANCE AND TESTING
CAUTION
Under normal operating conditions a "try lever
test" should be performed every two months.
Under severe service conditions, or if corro-
sion and/or deposits are noticed within the
valve body, testing must be performed more
often. A "try lever test" should also be per-
formed at the end of any non-service period.
CAUTION
Hot, high pressure fluid may be discharged
from body drain and vent during "try lever"
test. Care must be taken to avoid any bodily
contact.
CAUTION
High sound levels may be experienced during
"try lever" test. Wear proper safety equipment
and exercise extreme care! Test at, or near,
half of the operating pressure by holding the
test lever fully open for at least two seconds
to flush the valve seat free of sediment and
debris. Then release lever and permit the
valve to snap shut.
If lift lever does not activate, or there is no
evidence of discharge, turn off equipment im-
mediately and contact a licensed contractor or
qualified service personnel.
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