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 (Lee–Temp™/ Flood Back Head Pressure Control)

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

Lee-Temp Heater Pad

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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Emerson VE, VH, DE, DH manual Air Cooled Condenser, Outdoor fan/condenser configuration

VE, DH, VH, DE specifications

Emerson is a well-known brand in the field of automation solutions, offering a range of products that cater to various industries. Among its diverse portfolio, Emerson’s products like DE (Digital Electronics), VH (Variable Frequency Drives), DH (Distributed Control Systems), and VE (Valve Positioners) stand out for their advanced features, cutting-edge technologies, and unique characteristics.

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