Low ESP Fan Coil Indoor Unit
22
controller.
②
When the indoor unit is controlled by two wired controllers, the addresses of the two wired
controllers should be different through address setting. Address 1 is for main controller; Address 2
is for slave controller. Detailed setting please refer to the instruction manual of wired controller.
6 Routine Maintenance
Warning:
①
Do turn off the unit and cut off the main power supply when cleaning the air conditioner to
avoid electric shock or injury.
②
Stand at solid table when cleaning the unit.
③
Do not clean the unit with hot water whose temperature is higher than 45°C to prevent fade
or deformation.
④
Do not dry the filters by fire, or it may catch fire or become deformed.
⑤
Clean the filter with a wet cloth dipped in neutral detergent.
⑥
Please contact after-sales service staff if there is abnormal situation.
6.1 Cleaning of Filter
(1) Remove the filters from inlet of IDU. Use a vacuum cleaner to remove dust. If the filters are
dirty, wash them with warm water and mild detergent, and dry the filters in the shade.
(2) If the unit used in the environment with much dust, please clean it regularly. (usually once
every two weeks).
6.2 Maintenance before the Seasonal Use
(1) Check if the air inlet and air outlet of indoor and outdoor unit are blocked.
(2) Check if securely grounded.
(3) Check if all the power cord and communication cable are securely connected.
(4) Check if any error code displayed after energized.
6.3 Maintenance after the Seasonal Use
(1) Set the unit in fan mode for half a day in a sunny day to dry the inner part of unit;
(2)
When the unit won’t be used for a long time, please cut off power supply for energy saving;
the characters on the wired controller screen will disappear after cutting off the power
supply.
7 Table of Error Codes for Indoor Unit
Error
Code
Content
Error
Code
Content
Error
Code
Content
L0
Indoor Unit Error
LA
Indoor Units Incompatibility
Error
d8
Water Temperature Sensor
Error
L1
Indoor Fan Protection
LH
Low Air Quanlity Warning
d9
Jumper Cap Error
L2
E-heater Protection
LC
Outdoor-Indoor Incompatibility
Error
dA
Indoor Unit
Hardware Address Error
L3
Water Full Protection
d1
Indoor Unit PC-Board Error
dH
Wired Controller PC-Board
Error
L4
Wired Controller
Power Supply Error
d3
Ambient Temperature Sensor
Error
dC
Capacity DIP Switch Setting
Error.
