Service Manual Ideal Air CG2 Commercial Grade Dehumidifier
Sunlight Supply, Inc.
6
Note
：
The following are OPTIONAL and non-‐supported functions:
Language, ID,
USB/SD-‐CARD, and GSM. Your system may not have these options available. If your system does
have these options, it may not function. Please understand these options are not supported by
Ideal Air Technical Support and any error message can simply be ignored.
More detailed operational instructions please see the OWNER’S MANUAL
2.2.
Defrost Function:
The Ideal Air CG2 Dehumidifier is fitted with a temperature sensitive defrost control. The
defrost control device is designed to prevent ice buildup at lower operating temperatures. In
some conditions, the defrost device may not be able to remove all ice from the evaporator coil.
In these cases, the fan may stop running to shut down air movement to enhance the
performance of the defrost mode.
In situations where year round humidity control is desired, the dehumidifier unit will have
to operate across a wider range of temperatures. The unit is programmed to restrict defrost
operation to the times when ambient temperature falls below 75 degrees F. The defrost control
sequence is as follows:
NOTE:
Te = Ambient Temperature.
1.
When Te is less than 32°F and greater than 105°F, the compressor and fan motor stop will
stop working.
2.
When Te is between 32°F and 75°F:
2.1.
Continuous Operation run time is equals to Te x 2. The minimum run time is
30minutes.
2.2 If temperature of indoor coil is less than or equal to 26°F (with detection continuously
for 30 seconds or more) after continuous operation run-‐time is reached, the unit will
automatically enter defrost mode.
2.3 Defrost mode begins with energizing the four-‐way valve. 30 seconds later the
compressor will begin operation. The fan motor will not operate during defrost. The
compressor will run for 2min. After this time, the four-‐way valve will close. 30s later the
compressor and fan motor will return to normal operation.
2.4 If temperature of indoor coil is greater than or equal to 26°F, after continuous
operation run-‐time is reached, the unit will not enter defrost mode.
2.5 If Te >75°F, the unit will NOT enter defrost mode.
