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Controller For Ducted Fan Coil Units
:
Features
The controller is used to control air cooled ducted split unit, supports the following functions:
- Modes: Cool, Dry, Fan, Heat
- Indoor fan speed: Auto, High, Medium, Low
- Sleep mode
- Compressor protections:
Comp 3 minutes restart protection
Indoor coil anti-freeze
Room sensor and indoor coil sensor failure monitoring
- Non volatile memory – keep system settings
- Programmable On/Off timer
- Random restart to minimize voltage dip during compressor first cut in cycle upon power up.
Hardware Setting:
A 2 way DIP switch is used to configure:
Error Code:
If multiple faults happen at the same time, the corresponding error code will be shown one after
another
Fault
Room sensor fault
Indoor coil sensor fault
Comp fault
Split System Description
Wired Room
Controller (Standard)
Notes: The wired room controller is mounted on the wall and can control all system functions without wireless remote control.
:
1) On/Off Key
If you press this key, the system will begin operation, Press the key again, and operation stops.
(You can hear a receiving beep). If you press this key immediately after turning off the system, the compressor will
not operate for 3 minutes to prevent overloading.
2) Operation Mode Selection Key: Toggles the operation mode: Cool, Dry, Heat, or Fan only
"COOL" Led
"DRY" Led
"HEAT" Led
"FAN" Led
3) Fan Speed Selection Key: Toggles the fan speed: Auto, High, Medium, or Low, Note: Fan key is invalid in Dry
mode.
4) Temperature Up Key: By pressing Temperature up Key, the setting temperature increases by 1ºC with each
press.
5) Temperature Down Key: By pressing temperature down key, the setting temperature decreases by 1ºC with
each press. If you set the desired room temperature, then system will maintain the room temperature as set. Upon
setting the desired room temperature the system will maintain the room temperature
Error code
E1
E2
E4
Lights on when selecting COOL mode.
Lights on when selecting DRY mode.
Lights on when selecting Heat mode.
Lights on when selecting FAN mode.
- 9 -
DIP Switch
On
SW1
Cool
SW2
Water System
Wired Room Controller
Off
Cool-Heat
DX System
Wireless Room Controller
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