CaptiveAire D76, Инструкция по установке, эксплуатации и обслуживанию

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41
MAINTENANCE
To guarantee trouble-free operation of this heater, the manufacturer suggests following these guidelines.
Most problems associated with fan failures are directly related to poor service and maintenance.
Please record any maintenance or service performed on this fan in the documentation section located at
the end of this manual.
WARNING: DO NOT ATTEMPT MAINTENANCE ON THE HEATER UNTIL THE ELECTRICAL SUPPLY
HAS BEEN COMPLETELY DISCONNECTED AND THE MAIN GAS SUPPLY VALVE HAS BEEN SHUT
OFF.
General Maintenance
1. Fan inlet and approaches to ventilator should be kept clean and free from any obstruction.
2. All fasteners and electrical connections should be checked for tightness each time maintenance
checks are performed before restarting unit.
3. These units require very little attention when moving clean air. Occasionally oil and dust may
accumulate, causing imbalance. If the fan is installed in a corrosive or dirty atmosphere, periodically
inspect and clean the wheel, inlet, and other moving parts to ensure smooth and safe operation.
4. Motors are normally permanently lubricated. Caution: Use care when touching the exterior of an
operating motor. Components may be hot enough to burn or cause injury.
5. If bearings require lubrication, very little is needed. A general rule is one-half pump from a grease gun
for 1/2” to 1-7/16” shaft diameters and one full pump for 1-11/16” and large diameter shafts for every
1500 to 3000 hours of operation. A lithium-based grease should be used. Bearings should be rotated
as they are lubricated to evenly distribute the grease, either by hand or via extended grease lines. Do
not attempt to grease bearings from inside the enclosure while the motor is energized. Caution:
Bearings are sealed, over-greasing can cause damage to the bearings. Do not grease until
grease comes out of seals. Only add the appropriate amount of grease.
2 Weeks After Start-up
1. Belt tension should be checked after the first 2 weeks of fan operation. See “Pulley Alignment/
Proper Belt Tension” on page 30.
2. All fasteners should be checked for tightness each time maintenance checks are performed before
restarting unit.
Every 3 Months
1. Belt tension should be checked quarterly. See “Pulley Alignment/Proper Belt Tension” on page 30.
Over-tightening will cause excessive bearing wear and noise. Too little tension will cause slippage at
start-up and uneven wear.
2. Filters need to be cleaned and/or replaced quarterly, and more often in severe conditions. Washable
filters can be washed in warm soapy water. When re-installing filters, be sure to install with the airflow
in the correct direction as indicated on the filter.
Yearly
1. Inspect bearings for wear and deterioration. Replace if necessary.
2. Inspect belt wear and replace torn or worn belts.
3. Inspect bolts and set screws for tightness. Tighten as necessary.
4. Inspect motor for cleanliness. Clean exterior surfaces only. Remove dust and grease from the motor
housing to ensure proper motor cooling. Remove dirt from the wheel and housing to prevent
imbalance and damage.
5. Check for gas leak and repair if present.
6. Clean flame sensor by rubbing with steel wool to remove any rust build-up.
7. Inspect burner assembly. Refer to “Burner Maintenance” on page 42 .