Haier YR-E20 User manual

Wired Controller
Operation & Installation Manual
•Please read this operation manual before using the air conditioner.
•Please keep this manual carefully and safely.
YR-E20
CONTENT
Wired Controller Instruction................................................ 1
Wired Controller Function .................................................. 7
Wired Controller Wiring Connection ................................. 35
ENGLISH
中文

1
Wired Controller Instruction
Interface Display

2
Keys
ON/OFF key
/
Temperature increase/decrease key, it can be used
for the time adjustment of clock, timer and sleeping
time, energy saving parameter adjustment, temp.
compensation parameter adjustment, selecting
function, and energy saving setting with fan speed
key. The adjustment step is 0.5°C. If energy saving
mode is not set,the temperature setting range is
from 16°C to 30°C. If energy saving mode is set,
the lowest temperature limit of cooling/dry and the
highest temperature limit of heating are decided by
the setting of energy saving parameter. The default
setting data is 23°C to be lowest temperature
in cooling/dry mode, and 26°C to be highest
temperature in heating mode.
Note: The wired controller shows the ambient
temperature if the dip switch SW2 is ON. The
controller statically shows the set temperature after
switching on the unit, changing mode, changing
the target temperature, then shift to show ambient
temperature after 3 seconds.

3
Mode key, press this key, the mode is shown in
cycle [intelligent]-[cooling]-[heating]-[fan]-[dry]-
[intelligent]
Note: No heating mode for cooling only unit or if
communication is abnormal.
Fan speed key, press this key to adjust fan speed.
Function key, it is used for clock setting, timer,
swing, fresh, health, electrical heating, sleeping,
energy saving, turbo, quiet function, etc.

4
Clock
Present/history error code inquiry, Energy
saving data display.
Timer on, Timer o󰀨, Timer on/o󰀨.
Temperature display, the accuracy is 0.5°C.
For example, 25.0°C will be displayed if
the temperature is an integer. It is used for
temperature compensation data display,
sleeping time display. When the ambient
temp.is displayed on the wired controller,
the thermometer on the top-left corner will
display accordingly.
Set, the controller shows this icon when
setting the energy saving data, temperature
compensation data.
Error, this icon appears when
communication error happens or indoor unit
meets error. This icon disappears after the
error is solved.
Swing, this icon is displayed dynamically if
swing is set. No swing is displayed if swing
function is not set.
Icon Instruction

5
Filter cleaning
Fresh, this icon is displayed if fresh is set;
no fresh is displayed if it is not set.
Electrical heating
Health
Sleeping, this icon is displayed after
sleeping is set. The sleeping time is
displayed when the function cycle shift to
sleeping.
Energy saving
Quiet
Turbo,this function is invalid after sleeping
is set. The function will be canceled if you
set sleeping mode after turbo mode.
Lock, this icon is displayed after lock signal
is received from communication. Operation
is invalid after the wired controller is locked.
Defrost

6
dFg (Only valid for part of models)
Child lock, this icon is displayed only after you set
child lock, or it will not display.
Intelligent mode
Cooling mode
Heating mode
Fan mode
Dry mode

7
Wired Controller Function
Dip Switch Instruction
Dip
switch ON OFF Default
SW1 Inverter unit On/O󰀨 unit OFF
SW2 Ambient temperature
display
Ambient temperature
no display OFF
SW3
Room temperature
sensor on PCB is
valid
Room temperature
sensor on wired
controller is valid
OFF
SW4 Function cycle
(simple version)
Function cycle
(general version) OFF
SW5 Old Protocol Selfadaption OFF
SW6 Reserved Reserved OFF
SW7 No swing Swing OFF
SW8 Electrical heating is
started manually
Electrical heating is
started automatically OFF

8
Setting for Special Function
Pressing function
key in 5 seconds
continuously
Function setting
On (unit is on)+
pressing function
key 10 times
Set the non-volatile memory after the
buzzer sounds 4 times
Cancel the non-volatile memory after the
buzzer sounds 2 times
Press function key
12 times to set the
child lock
Press function key
4 times to cancel
the child lock
1. Set the child lock after the buzzer
sounds 7 times, cancel child lock after
the buzzer sounds 2 times.
2. Child lock can also be set by keep
pressing fan speed key and function
key for 5s together. These two ways
can be used mutually to set or cancel
the child lock.
3. The function key can unlock the child
lock only under child lock mode. The
buzzer can sound once you press the
function key, but no function cycle is
displayed.
O󰀨 (unit is o󰀨)+
function 10 times
The ambient temperature is displayed 5
seconds after the buzzer sounds 3 times.
(SW2 is OFF)

9
Pressing function key in 5
seconds continuously Function setting
Unit is on+ heating mode
+30°C + high speed+ function
6 times (30°C changes to be
the limit highest temperature if
energy saving is set)
After the buzzer sounds 3
times, wired controller send
the “forced defrost” to indoor
unit, the defrost icon ashes 3
times, then disappears.
Unit is on+ cooling mode
+16°C+high speed+ function
8 times (16°C changes to be
the limit lowest temperature if
energy saving is set)
To enter rated cooling mode
after the buzzer sounds 5
times.
Unit is on+ heating mode
+30°C + high speed+ function
8 times (30°C changes to be
the limit highest temperature if
energy saving is set)
To enter rated heating mode
after the buzzer sounds 5
times
Initialization
1. After power on, initialization nishes after wired controller
interface being displayed 5 seconds.
2. Sound indication: the buzzer sounds 2 times quickly after
pressing the ON/OFF key to be on. The buzzer sounds 1
time slowly after pressing the ON/OFF key to be o󰀨.