General; Unit Exterior; Direct-Drive Supply And Exhaust Fans; Condensing Fans - Addison RC/FC Series Installation Operation & Maintenance

RC/FC Series Installation, Operation, and Maintenance Manual

Table 13: Maintenance Guidelines

15.1 General

Quarterly

15.2 Unit Exterior

Cabinet Exterior
Unit Location
15.3 Belt-Drive Supply Fans
Motors

15.4 Condensing Fans

Assemblies

15.5 Refrigeration Circuit Components

Evaporator Coil
Condenser Coil
Compressors
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Follow the entire start-up procedure at this time and check settings (controls, operating
temperatures, operating pressures, power and control voltages) and operation.
After installation, touch up scratches. Periodic painting should be done thereafter
as required. The caulk should be inspected annually. Re-apply caulk as needed to
maintain integrity.
Verify that no flammable objects, liquids or vapors are present near the unit. If unit
includes gas furnace, clearances to combustibles around the vent must be adhered to.
Do not hang anything from or place anything on the unit.
Keep the area around the unit free of all objects.
Inspection:
1. Inspect motor every 3 months. Keep the motor clean and vent openings clear.
Lubrication:
1. Motors with grease fittings must be lubricated based on the table below.
2. A high grade ball or roller bearing grease must be used. Recommended grease
for standard service is Mobil Polyrex™ EM. Other compatible greases include
ChevronTexaco Polystar®, ChevronTexaco Rykon® Premium 2, Pennzoil® Pen 2
Lube and ChevronTexaco SRI.
3. Motors without grease fittings are sealed for life and do not require relubrication.
Motor Lubrication Intervals
NEMA Frame Size (Motor HP)
Up to 210 (3 - 5)
Over 210 to 280 (7.5 - 20)
Over 280 to 360 (25 - 50)
Instructions for Lubricating:
Before greasing, be sure fittings are clean and free from dirt. Remove grease relief
plug or plate and, using a low-pressure grease gun, pump in the required grease.
Do not over-grease. Relubrication intervals are specified in the table above. After
relubricating, allow motor to run for 10 minutes before replacing relief hardware.
NOTE: In general, it is not recommended to mix greases of different brands. The
mixing of different types of thickeners may destroy the composition and physical
properties of the grease. In the event that a different grease is required by the end
user, the following steps can be taken. Using the instructions for lubrications, open
grease outlet and purge the system as much as possible of the old or unwanted
grease. Repeat this same operation after one week of service. Consult Addison or the
motor manufacturer for further recommendations on grease compatibility.
Manually rotate to ensure free movement. Check that all fan mounting hardware
is tight. Check motor bearings for wear.
Check for dirt and bent fins. Clean with water from blower side towards filter side.
Check for dirt and bent fins. Clean by brushing off with broom.
Compressors are factory-supplied with a charge of oil and should not require
additional maintenance.
Rated at 1800 RPM (Hours)
6,000
4,750
3,700