Control Operation Guide; Lcd Panel Installation - Acson R410A-Serie Installationsanleitung

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The unit is equipped with a microprocessor controller board. The microprocessor controller is provided to give temperature

control for the system by accurately measuring and controlling the water entering and water leaving temperature. The tem-

perature setting in the unit is preset in the factory. It is not recommended to change the setting unless necessary. A wired

controller handset is connected to the microprocessor board. Every parameter setting and reading can be observed from the

LCD of the handset.

JP-Y

JDC

1. Handset location

The handset is located on a metal bracket behind the right door panel.

2. LED Display (microprocessor board)

The keypad LED will light up when the unit is powered up.

The LCD will light up when the unit is turned on.

3. LCD display (controller handset)

During normal operations, the LCD can display the entering water temperature, the leaving water temperature, the enter-

ing water setpoint temperature, compressor on or off status and outdoor air temperature. When malfunctioning occurred,

the LCD would blink. The display would show the faulty parameter and the date and time of the occurrence.

4. Controller functioning specification

There is a 3 minute delay for the compressor and fan motor to restart (default setting).

During defrosting, fan motor is not running.

•

Use the controller handset to switch on / off the unit. Do not plug off the main power supply directly, it would cause

the unit to breakdown. In case of emergency switch off the isolator switch located on the front panel of the unit.

•

Do not change the settings of the safety devices.

•

The unit comes with a LCD panel installed. To change the position or re-install the LCD panel, follow the installation

guide below.

When fastening the LCD panel to the bracket,

Step 1

Hook the LCD panel

from the top first

When removing the LCD panel from the bracket,

Step 1

Remove the LCD panel

from the bottom part first

with help of a screw driver