Zamil CX180 User Manual

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INSTALLATION,

OPERATION

&

MAINTENANCE

MANUAL

AIR COOLED CONDENSING UNITS

CX SERIES (CX150 - CX360)

Part Number: 800-213-58 (Rev.-02)

Questions and Answers:

N
Nicole ByrdAug 13, 2025
What to do if Zamil Air Conditioner compressor will not start, hums but trips on overload protector?
- J
  Justin KingAug 13, 2025
  If your Zamil Air Conditioner compressor hums but trips on the overload protector, the following could be the cause: * **Improperly wired:** Check the wiring against the diagram. * **Low voltage to unit:** Determine the reason and correct it. * **Starting capacitor defective:** Determine the reason and replace it. * **Relay failing to close:** Determine the reason and correct it; replace if necessary. * **Compressor motor has a winding open or shorted:** Replace the compressor. * **Internal mechanical trouble in compressor:** Replace the compressor. * **Liquid refrigerant in compressor:** Check the crank case heater. * **High discharge pressure:** Unequilized pressure in the system.
B
Bryan ClayAug 16, 2025
Why does my Zamil Air Conditioner unit operate continuously?
- W
  Walter ArcherAug 16, 2025
  If your Zamil Air Conditioner operates continuously, here are some potential causes and solutions: * **Shortage of refrigerant:** Fix the leak and add refrigerant. * **Control contacts stuck or frozen closed:** Clean the contacts or replace the control. * **Refrigerated or air-conditioned space has excessive load or poor insulation:** Determine the fault and correct it. * **System inadequate to handle:** Replace with a larger system. * **Evaporator coil iced:** Defrost the coil. * **Restriction in the refrigeration system:** Determine the location and remove the restriction. * **Dirty condenser:** Clean the condenser. * **Filter dirty:** Clean or replace the filter.
M
Michael BlackAug 21, 2025
Why is the evaporator icing up in my Zamil Air Conditioner?
- F
  Felicia WellsAug 21, 2025
  If the evaporator in your Zamil Air Conditioner is icing up, consider the following possible causes and solutions: * **Restricted airflow:** Check for dirt or lint on the coil. * **Dirty air filter:** Clean or replace the air filter periodically. * **Short of refrigerant:** Check the system pressure, take a superheat reading, and add refrigerant as needed. * **Low air volume:** Check for a dirty air filter or loose belt. * **Restricted distributor tube:** Check for a warm distributor tube. * **Restricted liquid line/low liquid line pressure:** Check for restrictions in the lines and improve liquid line pressure by proper charging or installing a fan cycling switch, etc.
S
Stephen ObrienAug 26, 2025
What causes my Zamil Air Conditioner unit to run OK, but short cycles frequently?
- D
  Duane EspinozaAug 26, 2025
  If your Zamil Air Conditioner unit runs okay but short cycles frequently, here’s what might be happening: * **Overload protector:** Check the cause. * **Thermostat:** If the differential is set too close, widen it. * **High pressure cut-out due to:** * Insufficient air: Check airflow to the condenser and correct it. * Overcharge: Reduce the refrigerant charge. * Air in system: Purge the system. * **Low pressure cut-out due to:** * Undercharge: Fix any leaks and add refrigerant. * Restriction in expansion device: Replace the device.
T
Tina HendricksAug 30, 2025
Why Zamil Air Conditioner compressor starts, but does not switch off the start winding?
- B
  brittneylewisAug 30, 2025
  If your Zamil Air Conditioner compressor starts but does not switch off the start winding, here are potential causes: * **Improperly wired:** Check the wiring against the diagram. * **Low voltage to unit:** Determine the reason and correct it. * **Relay failing to open:** Determine the reason and correct it; replace if necessary. * **Run capacitor defective:** Determine the reason and replace it. * **Excessively high discharge pressure:** Check the discharge shut off valve; there may be a possible overcharge, or insufficient cooling on the condenser. * **Compressor motor has a winding open or shorted:** Replace the compressor. * **Internal mechanical trouble in compressor stuck up or frozen:** Replace the compressor.

Zamil CX180 Specifications

General

Cooling Capacity	18000 BTU/h
Refrigerant	R410A
Weight (Outdoor Unit)	32 kg
Power Supply	220-240V, 50Hz
Energy Efficiency Ratio (EER)	10.5

Summary

Installation Procedures

Connections and Charging

Refrigerant Piping Connections

Leak Testing and Refrigerant Charging

Procedures for leak testing and charging the system.

Electrical Connections

Information on power wiring, control wiring, and grounding.

Typical Schematic Wiring Diagrams

CX150 Single Compressor Units Wiring

Schematic wiring diagram for CX150 single compressor units.

Wiring Diagram Legend

CX180-CX220 Dual Compressor Units Wiring

Schematic wiring diagram for CX180-CX220 dual compressor units.

CX240-CX360 Dual Compressor Units Wiring

Schematic wiring diagram for CX240-CX360 dual compressor units.

Operation and Maintenance Procedures

Operation Instructions and Pre-Startup Checklist

Maintenance Procedures

Preventive Maintenance Schedule

Troubleshooting Chart

Parts List

Related product manuals

Preview: Zamil CX SERIES

Zamil CX SERIES