Wuxi Hutec Technology HJCSJ82 Users manual

WUXI HUTEC

Functional Specification

Product： Dehumidifier Remote-Control
Type： HJ-CSJ63/64/65/66/81/82
Customer： W C Wood Company Limited
Rev: A
By： Jimmy.Liu
Date： 26th Aug，2005

Warning:

Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.

A. Brief

There are three parts of the Dehumidifier Remote-Control.

a. Electrical source board (Same as the normal dehumidifier: 4-75517-101，

4-75517-102)

- Voltage rage: 115VAC / 60Hz，220AC /50Hz

b. Receiving-Control(HJ-CSJ63/64/65/66)

- Receiving-Control receives the instruction from the Transmitting-Control
and controls the fan and compressor to be on or off.

c. Transmitting-Control(HJ-CSJ81/82)

- User sets the RH on Transmitting-Control, and the T ransmitting-Control emit s the
instruction to Receiving-Control to open or close compressor according to the
ambient RH and user’s RH set-point.

- In order to save power, the transmitting-control sleeps 57s and wakes up 3s per
minute normally. In sleep status, the transmitting-control does nothing , not tests
the RH or temperature ,not emits instruction to Receiving-control, not changes
the LCD. So the current is lower than 80uA in sleep status. You can wake up
transmitting-control by pressing any key while it’s in sleep status.
While time reaches per minute or user presses any key , the transmitting-control
wakes up. In wake up status, transmitting-control tests the RH and the
temperature, then it decides what to do. The current is about 4mA in wake up
status.

- The distance of the remote is about 15m indoors or above 20m outdoors.

B. Functional Specification

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Part a Electrical source board

Same as the normal dehumidifier: 4-75517-101，4-75517-102,not described here.

Part b Receiving-Control

Four Led Lights: Fan-speed-high light (LED1),

Fan-speed-low light (LED2),
Power-on light (LED3),

Bucket-full light (LED4.RED)/Low-temp light (LED4.GREEN)
TWO Buttons: Power button(SW1), Fan-speed button(SW2)
TWO Temperature sensors: ambient-temperature sensor, coil-temperature sensor
ONE Buzzer: bucket-full alarm

Figure.1 Receiving-Control

1.

Normal mode

1) When first time turning on power to the receiving-control, the receiving-control begin

to work with the power-on light on according to the instruction from the
transmitting-control. If the remote communicates error for 30 minutes, the power-on
light flashes and the audible alarm (Bi-Bi) will be generated. After communicate error,
you can press Power button and Fan-speed button at receiving-control. Fan will run at
the speed according to your selection. Compressor will keep on for 52 minutes and
keep off for 8 minutes.

2) When the fan speed is chosen high on the transmitting-control, the fan-speed-high

light is on and the high-speed fan runs if it is enable.
When the fan speed is chosen low on the transmitting-control, the fan-speed-low light
is on and the low-speed fan runs if it is enable

3) Compressor must lag behind fan for 4 minutes. Once the compressor quits running,
it needs 4 minutes of interval if it should be turn on again.

4) When bucket full condition is detected for 2 seconds, compressor & fan will be

turned off sequentially . Then bucket-full light will be on and the audible alarm (1s on/1s
off) will be generated every hour.

5) The buzzer is able to alarm only because being set enable from transmitting-control.

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2. Very-Low-temp mode

If ambient temperature is below 4’C for 4mins, the control stops, the four LED lights
flash until the ambient temp is above 5’C for 8mins.

3. Low-temp mode

When the ambient temperature is lower than 15’C and lasts over 10 minutes
continuously, the receiving-control will automatically enter into the low-temp mode and the
low-temp light begins flash.

In the low-temp mode, there are two conditions:

Condition A:

If humidity does not reach your set point, the compressor runs 52mins on/8mins off.
At the end of the cycle, the receiving-control checks the coil-temp.

If the coil-temp is above 5’C, the compressor continues 52mins on until the humidity
reach the Set-point.

If the coil-temp is below 5’C, the compressor keeps stopping and fan runs to defrost
for 8mins again. At the end of the cycle, check the coil-temp again.

Condition B:

If humidity reaches the set point in 52mins, the compressor stops and the fan runs,
the receiving-control runs defrost for 4mins. at the end of the 4mins, check the coil-temp.

If the coil-temp is above 5’C, the compressor and the fan keep stopping unless
humidity increases to the set point again.

If the coil-temp is below 5’C, the receiving-control runs defrost for 4mins again, and
then check the coil-temp.

Once the ambient temperature is above 18’C for 10mins, the remote enter the
normal-mode.

4. Defrost mode:

When the coil temperature falls below 2’C more than 10 minutes, the receiving-control
will automatically enter ‘Defrost mode’. In ‘Defrost Mode’, the compressor will be
turned off, the fan will continue running with the selected fan speed. The compressor
remains off until coil temperature rises to 9’c or higher more than 10 minutes.

(Note: the defrost point is not decide, maybe is 2’C and 9’C, 4’C and 10’C, 6’C and
11’C.)

5. Fail-safe mode

If the coil temperature sensor and ambient temperature sensor fail to work properly,
the control will run in a fail-safe mode. The fan will run at the speed you select and the
compressor will cycle with 52 minutes on / 8 minutes off sequence.

6. Self-test mode

While power is off, press Fan-speed button and Power button at the same time for 3
seconds, you will see all LED light on and the buzzer alarms for 1 sec. It means the

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