Specifications

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Periodic maintenance is essential to the efficient opera-
tion and extended service life of this equipment. Failure
to provide maintenance as recommended may void the
equipment warranty.
A. Maintenance Schedule
1. Daily
a. Check gages, monitors, instruments and
equipment settings.
2. Weekly
a. Check that fan belts are tight and sheaves are
aligned. CAUTION: Do Not Over Tighten
Belts. The fan belts can be checked every 30
days after the first 60 days of new belt run-in.
b. Check gas pressure at regulator.
3. Monthly
a. Check all valves, piping and connections for
leaks.
b. Check the pilot and burner flame signal.
c. Check the fuel pressure in the fuel supply line to
each heater.
d. Check the burner manifold pressure and draft.
e. Do a flue gas analysis.
f. Inspect filters. Clean or replace as necessary.
g. Inspect main fan bearings; lubricate if
necessary. See following section on bearing
lubrication.
h. Check all dampers, damper actuators and
linkages. Adjust and tighten if necessary.
i. Inspect area and make sure that no
combustible or hazardous material has been
stored within clearances as shown on the
specification plate.
j. Check for any vibration or unusual noise. If any
is observed, locate the cause and correct.
k. Ensure the supply, discharge, combustion air,
vents, and stack remains clean and open.
4. Quarterly
a. Complete the monthly maintenance schedule.
b. Inspect all drives for proper belt tension, wear,
and alignment.
c. Check that bearings, fans, and drives set-
screws are securely locked to the shaft.
d. Inspect the burner and pilot assembly. Clean
and adjust if necessary.
e. Check the voltage and amps on all motors.
f. Check the operation of all safety limits and
controls. Clean and recalibrate or replace.
g. Check the operation of the automatic gas shut
off valves, and check them for leakage at the
pressure test ports provided.
h. Inspect all electrical components, connections,
and terminals. Clean or replace and tighten as
necessary.
SECTION IX - MAINTENANCE
5. Off Season or Yearly
a. Complete the monthly and quarterly mainte-
nance schedules.
b. Inspect, and if necessary, clean all fan wheels
and housings.
c. Check that all fan wheels, or props, and
sheaves are securely set to the shaft.
d. Inspect all bearings and check condition and
alignment.
e. Check the condensation lines for any leaks or
blockages (if applicable).
f. Test ignition spark. Adjust gap if necessary.
g. Clean flame sensor, ignition electrodes, and
check for cracks.
h. Test the flame safeguard relay (RE-02) and
replace components if necessary.
i. Inspect all regulators, relief valves, motorized
valves, solenoid valves, vent valves, manual
shut off valves, and safety shut off valves.
Check their operation and clean as necessary.
j. Inspect and clean all drip legs in fuel lines and
in the flue.
k. Remove the rear panel and the rear header box
cover. Inspect the header box and tubes. Look
for carbon deposits, soot, scale or rust. Clean if
necessary.
l. Inspect the combustion chamber for carbon de-
posits, soot, scale or flame impingement. Clean
if necessary. If there is evidence of flame
impingement, complete burner adjustment
must be made.
m. Lubricate fan motors as directed by motor
manufacturer. Inspect motors for loose
connections.
n. Lightly oil all door latches.
o. Check that the cabinet is weather-tight.
Replace door gaskets and re-caulk as needed.
B. Lubrication Instructions
Motor Manufacturer Bearing Type
All 3 phase U.S., Baldor Single row ball
fan motors or equal bearings
(1 HP to
100 HP)
ODP, TEFC
Recommendation: See following note.
All 1 phase Century, G.E., Bronze sleeve
motors or equal bearings
(Fractional
HP) ODP,
TEFC or
TEAO
Recommendation: See following note.