User Manual

User's Manual
5
Industrial Portable AC
There are two springs on the rear or condensate water tank guide.
1. Release screw on spring hook.
2. Take off spring hook and pull out opposite spring hook from hole in
the condensate water tank guide.
3. Replace with a new spring in reverse order.
4. Repeat this cycle for the other spring.
SELF-DIAGNOSTIC CODES (See Table 1)
The alarm light is activated if abnormal operation occurs and
a code is displayed on the control panel. The compressor and
condenser fan motor will stop operating. The evaporator fan
will continue to run for 3 minutes. If the fault is rectified within
3 minutes, the unit will resume operation. If the fault persists
for more than 3 minutes, the evaporator fan will stop. The fault
must be rectified before the unit will resume normal operation.
SELF-DIAGNOSTIC ALARM CODES
Alarm Display Problem Cause Corrective Action
Frost prevention sensor and Abnormal
temperature sensor value
• Indoor heat exchanger
temperature too low
• TH3 temperature sensor has a
loose or broken connection
• Do not use air conditioner if
ambient temperature is lower than
18°C (64°F)
• Contact a qualified service agent
Refrigerant high pressure switch • Blocked air filter
• Blocked / kinked exhaust duct
• Ambient temperature is too high
• Clean air filter
• Ensure exhaust duct is not blocked
/ kinked
• Do not use air conditioner if ambient
temperature is higher than 45°C
Abnormal temperature sensor
value
TH1(Outlet) temperature sensor has
a loose or broken connection
Contact qualified service personnel
Abnormal temperature sensor
value
TH2(Inlet) temperature sensor has a
loose or broken connection
Contact qualified service personnel
Compressor over-loaded • Ambient temperature is too high
• Unstable voltage supply
• Defective compressor
• Do not use A/C if ambient
temperature is higher than 45°C
(113°F)
• Contact qualified service personnel
• Replace compressor
Condensate water level alarm Condensate tank is full • Empty water tank
• After water tank installation, press
the SPOT/COOL or ROOM/ COOL
button to resume operation
Drain pump alarm Drain pump defective or improper
hose connection (including kink or
blockage)
• Check connection and hose
• Replace drain pump
Table 1 - Alarm Codes