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Idiomas disponibles
Idiomas disponibles
TEST RUN AND FAULT CODE
Before Test Run
• Connect unit to the power supply of the outdoor units to energize the heater of the compressor. Power the system on
for 12 hours prior to start up to protect the compressor.
Check if the connections of the drainpipe and wire connection lines are correct.
The drainpipe shall be placed at the lower part while the connection line placed at the upper part. Insulating measures
should be taken such as winding the drainpipe especially on the indoor units with insulating materials. Run the drain line
below the outlet of the unit. Insulate the condensate drain piping to prevent condensation. Install drain piping with proper
slope away from the indoor units.
The drain pipe should be installed as a slope to avoid protruding from the upper part and concaving at the lower part.
Checkup of Installation
• Check if the main voltage is correct
• Check for any leaks at the piping joints
• Check if the connection of the main power for the indoor & outdoor units are correct
• Check if the serial numbers of the terminals are matched properly
• Check if the installation place meets the requirement
• Check if there is too much noise
• Check if the connecting line is fastened
• Check if the refrigerant and condensation lines are insulated
• Check if the water is drained to the outside
• Check if the indoor units are positioned
Test Run
Equipment installers should test-run all equipment. Test procedures are listed in the installation manual. Take the testing
procedures according to the manual and check if the temperature regulator works properly. When the machine fails to
start due to the room temperature, the following procedures can be taken to do the compulsive running. The function is
not provided for the type with remote control.
• Set the YR-E17 wired controller to cooling/heating mode, press "ON/OFF" button for 10 seconds to enter into the
compulsive cooling/heating mode. Press "ON/OFF" button again to quit the compulsive running and stop the operation
of the system.
Fault Remedies
When any fault appears, consult the fault code of line control or the number of LED flashes on the control panel of the
indoor units/health lamp of receiving window of remote control. Refer to the below table lookup fault descriptions.
Indoor Unit Faults
Failure Code at Wired
Controller
01
02
03
04
05
06
07
08
09
0A
0C
0E
Outdoor Unit Code
31-5000476 Rev. 0
PCB LED5 (indoor Units) /
Receiver Timer Lamp (Remote
Controller)
1
2
3
4
5
6
7
8
9
10
12
14
20
Fault Descriptions
Fault of indoor unit ambient temp. sensor TA
Fault of indoor unit pipe temp. sensor TC1
Fault of indoor unit pipe temp. sensor TC2
Fault of indoor unit dual heat source temp. sensor
Fault of indoor unit EEPROM
Fault of communication between indoor & outdoor units
Fault of communication between indoor unit and wired control
Fault of indoor unit water drainage
Fault of duplicate indoor unit address
Reserve
Fault of zero crossing
Fault of DC fan
Corresponding faults of outdoor units
21
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