Component Operation and Maintenance, Checks and Adjustments
7.4.7Air Cooled Condenser
Restricted airflow through the condenser coil will reduce the operating efficiency of the unit and can result in high compressor head pressure and loss of cooling.
Clean the condenser coil of all debris that will inhibit air flow. This can be done with compressed air or commercial coil cleaner. Check for bent or damaged coil fins and repair as necessary. In winter, do not permit snow to accumulate around the sides or underneath the condenser.
Check all refrigerant lines and capillaries for vibration isolation. Support as necessary. Visually inspect all refrigerant lines for signs of oil leaks.
Checking Refrigerant Charge
The system refrigerant level must be periodically checked. This is easily done by the following proce- dure:
1.Adjust temperature setpoint in the unit so that the compressor will run continuously.
2.The refrigerant level is visible through two sight glasses on the receiver, and will vary with ambient temperature.
a.40°F (4.4°C) and lower – Midway on the bottom sight glass.
b.40 to 60°F (4.4 to 15.6°C) – Bottom sight glass should be clear with liquid.
c.60°F (15.6°C) and above – Midway on the top sight glass.
3.Return temperature setpoint to desired number.
Figure 8 Outdoor fan/condenser configuration
Connection Boxes
Secure each leg to condenser frame at all points shown using hardware provided
Fan Motor M1
Inverted Traps by Others
Hot Gas Line
Electric Service
Supplied by Others Liquid Line
Fan Motor FS
| Inverted Traps |
| by Others |
| Hot Gas Line |
| Electric Service |
Liquid Line | Supplied by Others |
|
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