Item
Frequency
Checked By
Remarks
PERIODIC ChECk LIST
Gages, monitors, and indicators
Daily
Operator
Make visual inspection and record readings
in log
Instrument and equipment
Daily
Operator
Make visual check against heat exchanger
settings
manufacturer’s recommended specifications
Firing rate control
Weekly
Operator
Verify heat exchanger manufacturer’s settings
Semiannually
Service Technician
Verify heat exchanger manufacturer’s settings
Annually
ServiceTechnician
Check with combustion test
Flue, vent, stack, or outlet
Monthly
Operator
Make visual inspection of linkage, check for
damper
proper operation
Combustion air
Monthly
Operator
All sources remain clean and open
Ignition System
Weekly
Operator
Make visual inspection, check flame signal
strength if meter-fitted
(see Combustion safety controls)
Fuel Valves
Pilot and main
Weekly
Operator
Open limit switch-make aural and visual check-
check valve position indicators and check
fuel meters if so fitted
Pilot and main gas or main oil
Annually
Service Technician
Perform leakage tests-refer to valve
manufacturer’s instructions
Combustion safety controls
Flame failure
Weekly
Operator
Close manual fuel supply for (1) pilot,
(2) main fuel cock, and/or valves(s):
check safety shutdown timing; log
Flame signal strength
Weekly
Operator
If flame signal meter installed, read and log;
for both pilot and main flames, notify service
organization if readings are very high, very
low, or fluctuating; refer to flame safeguard
manufacturer’s instructions
Pilot turndown tests
As required/annually
Service Technician
Required after any adjustments to
flame scanner mount or pilot burner;
verify annually-refer to flame
safeguard manufacturer’s instructions
Refractory hold in
As required/annually
Service Technician
See Pilot turndown tests
High limit safety control
Annually
Service Technician
Refer to heat exchanger manufacturer’s
instructions
Operating control
Annually
Service Technician
Refer to heat exchanger manufacturer’s
instructions
Low draft, fan, air pressure,
Monthly
Operator
Refer to this manual and control manufacturer’s
and damper
instructions
High and low gas pressure interlocks Monthly
Operator
Refer to instructions in this manual
Low oil pressure interlocks
Monthly
Operator
Refer to instructions in this manual
Fuel valve interlock switch
Annually
Service Technician
Refer to valve manufacturer’s instructions
Purge switch
Annually
Service Technician
Refer to fuel/air control motor manufacturer’s
instructions
Low fire start interlock
Annually
Service Technician
Refer to fuel/air control motor manufacturer’s
instructions
Automatic changeover control
At least annually
Service Technician
Under supervision of gas utility
(dual fuel)
Inspect burner components
Service Technician
Refer to this manual and control
component manufacturer’s instructions
Remove oil drawer assembly
Annually
Service Technician
Remove and clean
Check blower motor and blower
Annually
Service Technician
Remove and clean
wheel for cleanliness. Remove
and clean as necessary
Remove, inspect and clean gas
Annually
Service Technician
Remove and clean
pilot assembly
Refer to heat exchanger manufacturer’s instructions for
general inspection procedures and for specific testing and
inspection of all liquid level controls, pressure/temperature
relief and other applicable items.
If you have any questions about the procedures listed
above-or questions relating to components or devices on
your unit not specifically covered in the above-contact our
Service Department at
(620)421-0480
for assistance.
C45
Rev.304
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