C&H A IR C O N D
ITI O
N E R S
O W
N E R ' S M A N U A L
O W
N E R ' S M A N U A L
C&H A IR C O N D
ITI O
N E R S
Air Conditioner
CASSETTE SERIES
indoor
GKH18K3BI
GKH24K3BI
GKH36K3BI
GKH48K3BI
Thanks for your selection of our Air-Conditioning Unit. Before use, please read this instruction
manual carefully and keep it properly to ensure correct use of this machine.
unit out
MODELS:
door
unit
GUHN18NK3AO
GUHN24NK3AO
GUHN36NM3AO
GUHN48NM3AO
1. Names and functions of parts
1
GKH18K3BI / GUHN18NK3AO
GKH24K3BI / GUHN24NK3AO
2
GKH36K3BI / GUHN36NMK3AO
GKH48K3BI / GUHN48NMK3AO
2. Safety cautions
●Read the following carefully to assure safe use.
NOTE: Children should be supervised to ensure that they do not play with the appliance.
3
NOTE: This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless they
have been given supervision or instruction concerning use of the appliance by a person
responsible for their safety.
4
Safety Considerations
Please read this manual carefully before use and operate correctly as instructed in the manual.
1
You are specially warned to note the two symbols below.:
WARNING! A
symbol indicating that improper operation might cause human death or severe
injuries.
A symbol indicating that improper operation might cause human injury or property
damage.
WARNING!
●
This unit shall be used in the houses, offices, restaurants, residences or similar places.
●
Please seek an authorized repair station for installation work. Improper installation might cause water leakage,
electric shock or fire.
●
Please install at a place strong enough to support the weight of air conditioner unit. If not, the air conditioner
unit might fall down and cause human injury or death.
●
To ensure proper drainage, the drainage pipe shall be correctly installed according to installation instructions.
Take proper measures for heat preservation to prevent condensing. Improper installation of pipes might cause
leakage and wet the articles in the room.
●
Do not use or store flammable, explosive, poisonous or other dangerous substances beside the air conditioner.
●
In case of trouble (e.g. burnt smell), please immediately cut off the main power of air conditioner unit.
●
Keep air flow to avoid shortage of oxygen in the room.
●
Never insert your finger or any objects into air outlet and inlet grill.
●
Never plug or unplug the power cable directly to start or stop the air-conditioning unit.
●
Please take constant care to check if the mounting rack is damaged after long use.
●
Never modify the air conditioner. Please contact the dealer or professional installation workers for repair or
relocation of the air conditioner.
●
The appliance shall not be installed in the laundry.
WARNING!:
●
The installation, cleaning and maintenance work must be done by a qualified person. Do not do such work by
yourself.
●
Before installation, please check the power supply for compliance with the ratings on nameplate. Check the
power safety as well.
●
Before use, please check and confirm if the cables, drainage pipes and pipelines are correctly connected,
hence to eliminate the risk of water leakage, refrigerant leakage, electric shock or fire.
●
Main power must be securely earthed to ensure effective grounding of air conditioner unit and avoid the risk
of electric shock. Please do not connect the earthling cable to coal gas pipe, water pipe, lightning rod or
telephone line.
●
Once started, the air conditioner shall not be stopped at least after 5 minutes or longer; otherwise the oil
return to compressor may be affected.
●
Do not let the child to operate the air conditioner unit.
●
Do not operate the air conditioner unit with wet hands.
●
Please disconnect the main power before cleaning the air conditioner or replacing the air filter.(Operating by
professional)
●
Please disconnect the main power if to put the air conditioner unit out of use for a long period.
●
Please do not expose the air conditioner unit directly under corrosive environment with water or moisture.
●
Please do not foot on or place any goods on air conditioner unit.
●
After electrical installation, the air conditioner unit shall be energized for electrical leakage test.
●
If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly
qualified person in order to avoid a hazard .
●
An all-pole disconnection switch having a contact separation of at least 3mm in all poles should be connected
in fixed wiring.
●
The appliance shall be installed in accordance with national wiring regulations.
●
The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the per
tube.
9
Failure st atus display
10
Sleep st atus display
11
Mode key
12
Se t temperatur e incr ease key
13
Se t temperatur e decr ease key
14
Fan speed key (fresh air setting)
15
Sleep key (outdoor environment temperatur
e check)
16
Timing key
17 ON/OFF key
Wire
1
Timing display
2
Fan speed display (Auto, High speed, Medium
speed, Low speed)
3
Defros ting st atus display
4
Ener gy saving st atus display
5
Se t temperatur e display
6
Ambient temperatur e display
7
Fr esh air st atus display (not supplied)
8
Mode (cooling, dehumidifying,fan, heating, auto)
controller (standard fitting)
SWING
SWING
TIMER
Composition of wire controller
•
Never install the wire controller in a place where is water
•
Avoid bunping, throwing, tossing or frequently
leakage.
opening
the wire controller
Oper
ating
Turning ON/OFF
unit
SW NG
TIMER
Pr
ess the
ON/OFF key, then the unit shall start up. Press the ON/OFF key
again, then the unit shall shut off.
Fan control (the figures show the relevant display ar
If
the fan control key is pressed consecutively, the fan speed shall
the following sequence:
Low
speed Medium speed High speed Auto
SWING
TIMER
In the dehumidifying mode: The fan speed shall be automatically set
Temperature setting
SW NG
TIMER
Pr
ess the temper
tem
per
ature se
keys once, the temper
function: when the ( ) and( ) key are pr
se
t temper
shut
function shall be re
centralized controller, the keys of the wire controller and the signal of the remote
controller ar
indicating ar
modes:
Heating: 16 °C~ 30 °C Cooling: 16 °C
Dehumidifying1: 6 °C~ 30 °C
Fan: No temper
atur
off;
press the two keys simultaneously for 5 second again, the key lock
e a shall display
instructions
eas)
ature se
tting key ( ) to decrease the set temper
e indicating are a shall display
e all locked and invalidated,
atur
tting key( ) to incr
atur
e shall increase or decrease by 1
leased. When the wire controller is locked by remote monitor or
“CC” Range of temperature setting under various
e setting function.
of
wire
ease the set temper
essed
simultaneously for 5 second, the
“EE”
and then the se t temperature
~ 30 °C
controller
changes
ature (when pressing the
°C) NOTE:
and all keys response shall be
atur
as per
as lo
w
e; press the
key lock
Swing function setting
Sleep function
SWING
setting
SWING
TIMER
SWING
TIMER
Press Swing button then the swing mode will be operated by the air conditioner.
Repress Swing button once to stop swing mode.
Note: There is no swing mode for duct type indoor unit
When under the cooling or dehumidifying mode, after receiving the SLEEP order
for 1 hour, the previous set temp. Set will be risen for 1°C, and another 1°C will
be risen after 2 hours that means that the temperature been risen 2°C within 2
hours. Then the unit will run according to this set temp.
When under the heating mode, after receiving the SLEEP order for 1 hour, the
previous set temp. Set will be lower for 1°C, and another 1°C will be lower after 2
hours that means that the temperature been lowered 2°C within 2 hours. Then the
unit will run according to this set temp.
There is no SLEEP mode under fan mode.
Note: The wired remote controller has no SLEEP mode button; if SLEEP mode is
needed to be set, complete the procedure by wireless remote controller.
Operating
Mode Setting
SWING
T M R
This key is pressed
following
sequence:
Cooling Dehumidifying
When the unit operates under “Cooling” mode, “COOL” shall be displayed. Now
the set temperature must be lower than the ambient temperature. Now if the set
temperature is higher than the ambient temperature, the unit shall not produce
cooling effect but shall only operate under. Fan mode. When the unit operates
under “Dehumidifying” mode, “DRY” shall be displayed. Now the interior fan
shall operate in the manner of low speed air supply within a certain range of
temperatures. The dehumidifying effect of this mode is better than that of the
Cooling mode and saves more energy.
When the unit operates under “Heating” mode, “HEAT” shall be displayed. Now
the set temperature must be higher than the ambient temperature; Now if the set
temperature is lower than the ambient temperature, the heating function shall not
be started.
When the unit operates under “Fan” mode, “FAN” shall be displayed. When the
unit operates under “Auto” mode, “AUTO” shall be displayed and the unit shall
adjust its operating mode automatically according to the ambient temperature.
When the unit operates under Heating mode and the outdoor temperature is low
and the humidity is high, frost shall produce at the outdoor unit. Now the heating
efficiency shall be decreased. When frosting hap- pens, the controller shall
automatically start to defrost, and “DEFROST” shall be displayed.
consecutively,
the
operating
Fan
mode shall change
Heating Auto
as
per the
Note: Cooling only type unit does not have heating mode and when energy saving
is set the Auto mode shall be invalidated.
Timer Setting
SWING
TIMER
Energy Saving Setting
SWING
T MER
When the unit is shut off, timing start can be set; After the unit is started up, timing
shutoff can be set. After the "TIMER" key is pressed, the unit enters the timing set
status and the word "TIMER" flashes on the display. Now user can press ( ) or( )
key to increase or decrease the set time. Press the "TIMER" key again and then the
timing shall go into effect. Now the unit starts to count the time passed. When the unit
is under timing status, you can cannel timing set by pressing the “TIMER” key. The
range of set time is between 0.5 to 24 hours.
When the unit is shut off, press the
consecutive seconds to activate the energy saving setting menu.
“COOL”
are displayed (In case it is the first time to set energy saving, the initial
value shall be displayed: 26 The lower limit of
the set
temperature
lower limit of cooling
temperature
key to confirm the setting;
of
temperature
area
(OUT ENV
between 16-30). Press the
that the upper limit
temperature;
upper limit
the
temperature
“MODE”
and the
temperature
can be selected from the range between 16-30). Press the
Also
and the
temperature
area) (the upper limit
“ON/OFF”
temperature
Otherwise the system shall regard the higher tem
and the lower one as the lower limit
key to complete the energy saving setting for the modes of cooling
and dehumidifying and turn to the energy saving setting for the heating mode
(Cooling only unit does not have this function). Now the LCD
“HEAT” After se
tting is complet
simultaneously for 5 consecutive seconds to exit the setting of energy saving. After
the energy saving setting interface is activated, the system
if there is no any operation within 20 seconds after the
normal shutoff status interface shall be displayed. After the above settings are
completed, the system shall display
exceed the
temperature
range of the energy saving set
the lower cooling limit is set as 23°C and the
the energy saving
be select
ed fr
wire controller
temperature,
modes. Remove
temperature
om t
he r
ange of 23 °C t
later If
the upper limit tem
the system can only
of energy saving setting:
after it takes into effect, you can press the
for 5 consecutive seconds when the unit is shut off. But the value set before
not be cleared but as the initial set temper
After the
unit
is
disconnect
ed to
stored. The setting still functions
again.
If
the energy saving mode is set, the sleep mode and the aut
invalidat
ed
...
“FAN”
key and the ( ) simultaneously for 5
Now
temperature
temperature
value under setting shall flash. Set the
shall be
displayed
using the ( ) key or the ( ) key (the lower limit
use the ( ) key or the ( ) key to set the
value shall flash on the
temperature
can be
key to confirm the setting.
must be higher than the set
ambient temperature
selected from
Please pay attention
lower limit
perature as the
temperature.
displays
ed, pr
ess the
“F
AN”
key
and the ( ) key
shall exit the interface
last key input, and the
“SAVE”
Now the set
temperature
ting before. For example,
upper
cooling limit is set as
setting in left
o 2
so the cooling t
7°C
by using the remote controller or the
emper
atur
perature is the same as the lower limit
operate at such
To
power supply,
when
the unit is
temperature
under relevant
remove the energy saving setting
“FAN”
and the ( ) key simultaneously
ature f
or the
next
ener
gy
saving setting.
the energy saving setting shall be
connected
to power supply
o mode shall be
“SAVE”
and
on
“ON/OFF”
upper limit
the range
Press
“SAVE” and
shall not
27°C
e can only
will
for
Display
outdoor
SWING
TIMER
temperature
Power-fail Memory Function Se
Debug Function Setting
TIMER
SWING
tting
Under normal conditions, the
temperature.
shut off or start up, the
temperature
interface of indoor
ambient sensor, t
Press
the “SLEEP” key
is displayed for 10 seconds, the system
temperature.
he unit shall no
“OUT ENV” column shall
for 5 consecutive
LCD shall display “OUT
Note: If not
t hav
e t
his
function.
only display t
seconds
ENV”. After the outdoor
shall return to the display
equipped wit
when the unit is
h an outdoor
Press and hold the
set values so as to decide if the unit operating status or shutoff status shall be
memorized after a power
unit operating status or shutoff status shall be memorized after a power fail; 02
means the operating status or shutoff status shall not be memorized. Press the
“ON/OFF”
When the unit is shut off, press the “FAN” key and the “SWING” key
Simultaneously to activate the debug menu. Now the LCD displays “DEBUG”.
Press the “MODE” key to select setting item and use the ( ) key or the ( )
key to set actual value.
Setting of Ambient Temp. Sensor Under the debug mode , press the “MODE” key
so as to display “01” On the set temperature area (at the left of “DEBUG”). The
OUT ENV area (at the right of “DEBUG”) displays setting status. Now use the
( ) key or the ( ) key to select from the following two settings:
The indoor room temperature is measured at the air intake(Now the OUT ENV
area displays 01).
The indoor room temperature is measured at the wire controller (Now the OUT
ENV area displays 02).
The indoor room temperature is measured at the wire controller when the mode is
'heating' or 'auto'. At other modes, it is measured at the air intake (Now the OUT
ENV area displays 03). The default is 03.
“MODE” key
fail.
key to store the se
for 10 seconds when the unit is shut off to
If the set
t value and exit t
temperature ar
he se
tting.
ea
displays 01, it means the
he
indoor
switch
Failure Display
SWING
When there is failure in the unit operation, “ERROR” will flash on
the LCD of the wire controller and the code of failure will also be
displayed. When there are multiple failures at the same time, the codes
of failures will be displayed one after one on the wire controller. The
first digit of the code denotes the system number. When there is only
one system, it will display the system number 1. The last two digits
denote the detailed failure code. For example, the code in left means
low pressure protection of compressor.
The Codes of Failure Definitions are as Follows:
Fault code
Fault
Fault code
Fault
E0
Pump Failure
F0
Failure of Indoor Room Sensor at Air
Intake
E1
Compressor High Pressure
Protection
F1
Failure of Evaporator Temp. Sensor
E2
Indoor Frost-Proof Protection
F2
Failure of Condenser Temp. Sensor
E3
Compressor Low Pressure
Protection
F3
Failure of Outdoor Ambient Sensor
E4
Compressor Exhaust High
Temperature Protection
F4
Failure of Exhaust Temp. Sensor
E5
Compressor Overheat
F5
Failure of Indoor Room Sensor at Wire
Controller
E6
Communications Failure
E8
Indoor Fan Protection
E9
Full Water Protection
E5 Material Malfunction Will Be Showed By The Indicator Light On The Mother Board Of Outside Unit
9
Unit off
display
10
Clock
display
11
Confirm
butt
on
12
Increase
butt
on
13
Decrease
butt
on
14
Cacel/delete
butt
on
15
Single/group
button
16
Timer/time
butt
on
17
ON/OFF
butt
on
1
Unit
dispal
y
2
Single/group
display
3
Timer
week
display
4
Timer
display
5
Timer
state
display
6
Timer
time period
display
7
Timer ON/OFF
time
display
8
Unit on
display
• 7DP
- Seven days
programmer
(Accessory
not
supplied)
Unit Function
Centralized Control and Week Timer
Functions: The centralized control- ler
and the weekly timer are integra- ted in
the same wire controller. The system
has both the centralized control
and the week timing functions. Up to
16 sets of units can be control- led
simultaneously by the centralized
controller (weekly timer). The weekly
timer has the function of invalidating
lower unit. The weekly timing function
is able to realized four timing ON/OFF
periods for any unit every day, so as to
achieve fully automatic operation.
This WEEKLY TIMER adopts 485
mode to communicate with manual
control of every duct type unit, and it can
control up to 16 units. Adopting 2-core
twisted-pair wire, the longest
communication distance of this TIMER
is 1200m. After connected to power, the
WEEKLY TIMER can display all
connected units (sequence of unit is
determined by code switch of manual
control of every duct type unit). On and
off of every duct type unit can be done
through the Timer On / Off of this
WEEKLY TIMER, and the button shield
operation of manual control can be done
through shield setting on WEEKLY
TIMER. Mode selection and temperature
adjustment and other operations are done
through the manual control at every unit.
Arrangement
Note:
1. For upper unit checks 16 lower units consecutively, there will be no more than 16 seconds delay
when setting works till unit responds.
2. Please let us know your requirement before your placing the order, for this WEEKLY TIMER will
only be prepared when customer orders (communication joint with WEEKLY TIMER on manual
control had been prepared).
1. Press or
Group Control (1~16), or control single unit by Single Control.
2. When selected a certain or several units by Single Control or Group Control, Timer setting and On/off
setting can be set. Timer setting can set 4 on/off times in a day in one week; and on/off setting can be
done by pressing on/off button.
3. Connection between WEEKLY TIMER and manual control is shown as following:
Power
supply
On Off
Power
to select the unit that needed to be control. It is available to control several units by
Week timer Manual control Manual
LCD
T
elephone
wire box
Longest distance 1200 m
LCD
T
elephone
T
wisted
16 units in
wire
box
wire with crystal
Corresponding relation
switch and
ting code switch to
max
joint
sequence
of unit
ON
contr
ol
LCD
T
elephone
wire box
between code
(NOTE:
means 0)
put-
Wire controller (with week timer functions)
Each part of wired controller
1
Timing Display
11
Swing Status Display
2
Ambient Temperature Display
12
Timer interval Display
3
Energy Saving Status Display
13
Mode Button
4
Set Temperature Display
14
Set Temperature Increase Button
5
Week Display
15
Set Temperature Decrease Button
6
Fan Speed Display (Auto, High
Speed, Medium Speed, Low Speed)
16
Fan Speed Button
7
Defrosting Status Display
17
Swing Button
8
Fresh Air Status Display
18
Timing Button
9
Mode (Cooling, Dehumidifying, Fan,
Heating, Auto)
19
ON/OFF Button
10
Malfunction Display
●Never install the wired controller where there is water leakage.
●Never knock, throw or frequently open the wired controller.
WARNING!
Fig.1
1) ON/OFF（Fig.2）
Press the “ON/OFF” button, the unit will start running.
Press the “ON/OFF” button again, the unit will stop
running.
2) Fan Control (Fig.3 is about display region and the
same as following figures.)
When press FAN button once, the fan speed will be
changed as follow:
In DRY mode: the fan speed will be set at low automatically.
3) Temperature Setting (Fig.4)
Press the setting temperature button:
▲：For temperature increase
▼：For temperature decrease
（Press this button once, the temperature will be increased
or decreased by 1.）
Note: Press ▲+ ▼button for 5 seconds, “EE” will
Fig.2
Fig.3
appear where SET TEMP is displayed and all buttons are
shielded. Press ▲+▼button again for 5 seconds to
cancel locked function.
If long-distance monitoring controller or central controller
shield displayer, all buttons and signals from remote
controller will be shielded too, and CC will be displayed
where SET TEMP is displayed.
Fig.4
Setting temperature range under each mode:
HEAT --------
COOL
-------- 16℃～30℃
16℃～30℃
DRY -------- 16℃～30℃
FAN -------- can not be set
Auto mode is divides into new auto mode and old auto mode.
NEW AUTO MODE --------------16℃～30℃
OLD AUTO MODE ---------- can not be set
4) Swing Setting (Fig.5)
Press SWING button, SWING will be displayed on the
LCD, in which case, the unit is under swing status.
Press this button again, the words will disappear and the
unit stops swinging.
Note: Sleep function can be set by remote controller.
5) Running Mode Setting (Fig.6)
Every press of mode button, the operation mode will
change as follow:
→COOL→DRY→FAN→ HEAT →
Fig.5
AUTO
In cool mode, COOL will light, in which case, setting
temperature should be set to be lower than present ambient
temperature; If not, the unit will not operate in cool mode
and only the fan is active.
In dry mode, DRY will light .Indoor fan will run at low speed
in certain temp. range. Dry efficiency as well as energy
saving efficiency in this mode is much better than that in
cool mode
In heat mode, HEAT will light. The setting temperature
should be set to be higher than present ambient
temperature; if not, the unit can not operate in heat mode.
In fan mode, FAN will light.
In auto mode, AUTO will light and the unit will run at the
mode automatically adjusted according to ambient temp.
Fig. 6
In heating mode, if outdoor temp is low with high humidity,
the outdoor unit will be frosted resulting in low efficiency
of heating, in which case, the controller will automatically
start to defrost with DEFROST displayed.
Note: No heating for cooling-only unit and auto mode will
be shielded after setting energy saving.
6) Timer Se tting (Fig.7, 8, 9)
Timer function in this wired controller connected
with weekly timer is invalid and wired controller will be
controlled by weekly timer.
Either in ON status or OFF status of the unit press
TIMER button into timing setting, and then press▲ or
▼button to set timing(Fig.7),set time(Fig.8) and
delete timing
(Fig.9). At last, press TIMER to set it.
Fig.7
Fig.8
Fig.9
In timing setting mode, press MODE button to select
any desired setting object: Week (1-7), timer interval
(1-4), timing (Timer on or Timer off time), min. part or
hour part of time, and then press▲ or ▼ button to
adjust this object, which is fixed by pressing TIMER
button or can be canceled by pressing Timer again.
During fixing setting there must be blinking characters.
During canceling setting, if there are also blinking
characters, setting can be continuous till quit It by
pressing ON/OFF button; meanwhile, timing data are
memorized. (Fig.10, 11)
In time setting mode press MODE button to select any
desired setting object: Week (1-7), min. part (0-59)
Fig.10
Fig.11
or hour part (0-23), and then press▲ or ▼ button to
adjust this object, which is fixed by pressing TIMER
button or can be canceled by pressing Timer again.
During fixing setting there must be blinking
characters. During canceling setting, if there are also
blinking characters, setting can be continuous till quit
It by pressing ON/OFF button.(Fig.12)
Fig.12
In deleting timing status, press ▲ or ▼ button to
select one day of a week, and then press TIMER
button to confirm, in which case, ”dd” is
displayed .The day also can be canceled by pressing
TIMER button without “dd” displayed. At last, press
ON/OFF button to quit the setting after finish.(Fig.13)
7) Outdoor Ambient Temp Display ( Fig.14)
In normal condition, only indoor ambient temp is
displayed where “ENVIROMENT” is displayed. At on or
off status of the unit, if press SWING button for 5
seconds, outdoor ambient temp (OUT ENV) will be
displayed.
Fig.13
If outdoor temp is tested to be above zero, there will
be
no display where setting temp is displayed and outdoor
ambient temp tested by inner system will be displayed
where ambient temp is displayed.
If outdoor temp is tested to be below zero, “－” will be
displayed where set temp is displayed and absolute
value of outdoor ambient temp tested by inner system
will be displayed where ambient temp is displayed.
After 10 second display, the system will return to
display interface of indoor ambient temp.
Note: This unit function is invalid without connecting with
outdoor ambient temp sensor.
Fig.14
8) Energy Saving Setting (Fig.15)
Press FAN+▼ for 5 seconds into energy saving menu, in which case,
SAVE and COOL is displayed (If it’s the first time for setting, initial
value 26℃ will be displayed.), lower-limit temp is displayed where
set temp is displayed and set temp during setting is displayed and
Fig.15
blinking. Press▲ and ▼ to set lower-limit cooling temp (setting
range is16－30) and then press ON/OFF to fix .Press ▲ and ▼ to set
upper-limit cooling temp, which will be displayed where ambient temp
is displayed (setting range is 16-30), and then press ON/OFF to fix.
Note: Upper- limit temp can not be set to be lower than lowerlimit temp, or else the higher temp will be defaulted to be
upper limit and the lower one to be lower- limit. Press MODE
button to set energy saving in cooling or dry mode and then
switch to energy saving setting in heating mode, in which case,
SAVE and HEAT will be displayed, which is quitted by
pressing FAN and ▼ for 5 seconds. If there is no operation
after the energy saving interface appears in 20s when the
system responds last press of one button, the system will trip
off the menu and display normal interface of unit off.
SAVE will be displayed in LCD at next startup of the unit if
above setting has been finished. Either by pressing buttons of
the displayer or remote controller, the setting temp can never
be set to be higher than temp range set under energy saving
mode before. For example, lower-limit cooling temp under
energy saving mode is 23 and upper limit is 28℃,so the
user can only set cooling temperature in the range of 23-28℃.
If the same limit temperature is set, the unit will only run under
corresponding mode at this setting temp.
Press Fan+▼ simultaneously for 5s to quit this function if it
has been effective, but former setting value can not be cleared,
which will be as the original value of next setting.
If the power is off, energy saving setting will be memorized,
which continues effectively after the power is on next time.
If energy-saving mode and sleeping mode is setting, auto
mode will be shielded.
Codes
Malfunction
E0
Water pump malfunction
E1
Compressor high-pressure protection
E2
Indoor anti-freezing protection
E3
Compressor low-pressure protection
E4
Compressor high-temp. exhaust protection
E5
Compressor overload protection
E6
Communication malfunction
E8
Indoor fan protection
E9
Water-full protection
F0
Air inlet indoor ambient temp. sensor malfunction
F1
Evaporator temp. sensor malfunction
F2
Condenser temp. sensor malfunction
F3
Outdoor ambient temp. sensor malfunction
F4
Exhaust ambient temp. sensor malfunction
F5
Ambient temp. sensor malfunction in displayer
EH
Auxiliary electric heat malfunction
9) Power–off Memory Setting (Fig.16)
Press mode button continuously for 10s and select if
memorize startup and stop status of the unit or not at unit.01
displayed in the region of displaying setting temp indicates
memorizing start and stop status of the unit after power
off .02, quit by pressing ON/OFF button ,indicates not
memorizing. If after the interface of memorizing startup and
stop status of the unit appears, there is no operation in 20s
when the system responds the last press of one button, the
system will trip off the menu and display normal sto p interface,
but it also memorizes present information.
10) Malfunction Display (Fig.17)
If malfunction happens during operating of the unit, ERROR will
blink with error code displayed. For example, the right figure
Fig.16
indicates compressor low-pressure protection.
Fig.17
Note!
If EH malfunction happens, please power the unit off immediately and ask professionals for
help.
CHECKING BEFORE CONTACT THE SERVICE MAN
Check if breaker switch is still on
OPERATION INSTRUCTIONS
Fig.1
Select install location of the indoor unit
1. Obstruct should put away from the intake or outlet vent of the indoor unit so that the airflow can be
blown though all the room.
2. Make sure that the installation had accord with the requirement of the schematic diagram of
installation spaces.
3. Select the place where can stand 4 times of the weight of the indoor unit and would not increase the
operating noise and oscillate.
4. The horizontally of the installation place should be guaranteed.
5. Select the place where is easy to drain out the condensate water, and connect with outdoor unit.
Models
H(mm)
GKH18K3BI
230
GKH24K3BI
260
GKH36K3BI
GKH48K3BI
320
Indoor Unit Installation
A.
B.
INSTALLATION
6. Make sure that there are enough space for care and maintenance. Make sure that the weight
between the indoor unit and ground is above 2300mm.
7. When installing the steeve bolt, check if the install place can stand the weight 4 times of the unit’s.
If not, reinforce before installation. (Refer to the install cardboard and find where should be
reinforced) The appliance shall not be installed in laundry.
Note！
There will be lots of lampblack and dust stick on the acentric, heat exchanger and water pump in
dining room and kitchen, which would reduce the capacity of heat exchanger, lead water leakage
and abnormal operation of the water pump.
The following treatment should be taken under this circumstance:
1. Ensure that the smoke trap above cooker has enough capacity to obviate lampblack to prevent the
indraft of the lampblack by the air conditioner.
2. Keep the air conditioner far from the kitchen so that the lampblack would not be indraft by the air
conditioner.
C. Important notice
☆ To guarantee the good performance, the unit must be installed by professional personnel according
with this instruction.
☆ Please contact our local repair department before installation. Any malfunction caused by
the unit that is installed by the department that is not special nominated by us would not deal
with on time by the inconvenience of the business contact.
D. Dimension of ceiling opening and location of the hoisting screw (M10)
Refrigerant pipe
Hoisting s crew (X4)
o is
ting sc re w ro ds )
ndoo
r unit
openi
GKH12K3BI,GKH18K3BI
GKH24K3BI,GKH36K3BI,GKH42K3BI,GKH48K3BI
950(Decorated surface
boards
)
890*(Ceiling
opening
)
840( Indoor
unit
)
780(Gaps between hoisting screw
rods
)
u
rface
680(
G a p s b e tw ee n h
840 ( I
)
890(
C eiling
g )
950(
D e co ra te
d
bo ards
)
☆ The drilling of holes in the ceiling must be done by the professional personnel.
Installation stands for main body of the
unit
Ceiling
Above 20
Fig 1
Notes: The dimension for the ceiling openings with * marks can be as large as 910mm. But the
overlapping sections of the ceiling and the decorated surface boards should be maintained at no
less than 20mm.
E. Main body of hoisting air conditioner
Nut (supplied at
scene)
Gasket
(attachment)
Insert
Hoisting
stand
Tighten (double
nuts)
Gasket anchor
board
(attachment)
[Fix the hoisting stand
firmly
]
[Fix the gasket
firmly
]
Center of the
ceiling
opening
Install
cardboard
Water
lever
Bolt （attachment
）
Polyethylene
pipe
Bolt （attachment
）
[Fix the install
cardboard
]
Fig.2
1. The primary step for install the indoor unit.
☆ When attach the hoisting stand on hoisting screw, do use nut and gasket individually at the upper and
lower of the hoisting stand to fix it. The use of gasket anchor board can prevent gasket break off.
2. Use install cardboard
(160)
Bolt of one of the angle
o
on the angle of the
drain
f
outlet
slot
fix
☆
☆
☆
Please refer to the install cardboard about the dimension of ceiling opening.
The central mark of the ceiling opening is marked on the install cardboard.
Install the install cardboard on the unit by bolt (3 piece), and fix the angle of the drainage pipe at
the outlet vent by bolt.
3. Adjust the unit to the suitable install place.
4. Check if the unit is horizontal.
☆ Inner drainage pump and bobber switch are included in the indoor unit, check if 4 angle of every
unit are horizontal by water lever. (If the unit is slant toward the opposite of the coagulate water
flow, there may be malfunction of the bobber switch and lead water drop.)
5. Backout the gasket anchor board used to prevent gasket break off and tighten the nut on it.
6. Backout the install cardboard.
Note！
● Please do tighten the nuts and bolts to prevent air conditioner break off.
F. Connect the refrigerant pipe
☆
Selection of Connecting Pipe
Item
Model
Size of Fitting Pipe
( I n c h )
Max. Pipe
Length (m)
Max. Height
D i f f e r e n c e
b e t w e e n
I
n d o o r U n i t
and Outdoor
U n i t ( m )
Amount of Additional
Refrigerant
to Be
Filled(For Extra
Length of Pipe)
Gas
Pipe
Liquid Pipe
GUHN18NK3AO
1/2
1/4
20
15
30g/m
GUHN24NK3AO
5/8 3/8 30 15 60g/m
GUHN36NM3AO
GUHN48NM3AO
3/4
1/2
50
30
120g/m
Note: 1. The standard pipe length is 5m,When the length(L) of the connecting pipe is less than or
equals 5m,there is no need to add refrigerant. If the connecting pipe is longer than 5m,it is
required to add refrigerant, in the above table, the amounts of refrigerant to be added for the
models are listed for each additional meter of pipe length.
2. The pipe wall thickness shall be 0.5-1.0mm and the pipe wall shall be able to withstand the
pressure of 6.0MPa.
3. The longer the connecting pipe, the lower the cooling effect and the heating effect.
Smear freeze
motoroil
here
Median sponge
(attachment)
(entwine the wiring
interface
with seal
mat)
Thread fasten(x4)
Torque
wrench
Heat
preservation
sheath of liquid
inlet
tube (attachment)
(for
liquid
tube)
Heat
preservation
sheath of gas
collec ion
tube
(attachment)(for
gas
tube)
Spanner
Gas collection
tube
Liquid inlet
tube
Wiring
interface
Fig.3 Flare
nut
☆ When connect the pipe to the unit or back out it from the unit, please do use both spanner and
torque wrench. as shown in fig.3.
☆ When connect, smear both inside and outside of the flare nut with freeze motor oil, screw it by
hand and then tighten it with spanner.
☆ Refer to form 1 to check if the wrench had been tightened (too tight would mangle the nut and
Form 1: The tightening torque needed for tightening nut
☆ Examine the connection pipe to see if it had gas leakage, then take the treatment of heat insulation,
as shown in the fig.3.
Diameter（Inch）
Surface thickness（mm）
Tightening torque (N.m)
φ
1/4’’ ≥0.5
15-30 (N·m)
φ
3/8’’ ≥0.71
30-40 (N·m)
φ
1/2’’ ≥1
45-50 (N·m)
φ
5/8’’ ≥1
60-65 (N·m)
φ
3/4’’ ≥1
70-75 (N·m)
☆ Only use median sponge to entwine the wiring interface of the gas pipe and heat preservation
sheath of the gas collection tube.
G. Drainage hose
1. Install the drain hose
☆
The diameter of the drain hose should be equal or bigger than the connection pipe’s. ( The
diameter of polythene pipe: Outer diameter 25mm Surface thickness ≥1.5mm)
Drain hose should be short and drooping gradient should at less 1/100 to prevent the formation of
air bubble.
If drain hose cannot has enough drooping gradient, drain raising pipe should be added.
To prevent bent of the drain hose, the distance between hoisting stand should is 1 to 1.5m.
☆
☆
☆
○(Correct) 1/100 or more gradient
× (wrong)
☆
Use the drain hose and clamp attached. Insert
Sponge(attachment)
the drain hose to the drain vent, and then tighten
the clamp.
☆ Entwine the big sponge on the clamp of drain
hose to insulate heat.
☆ Heat insulation should be done to indoor drain
Clamp
Clamp(attac
Sponge (gray)
Drain hose
Below 4mm
● Note of drain step up pipe
☆ The install height of the drain raising pipe should less than 280mm.
☆ The drain raising pipe should form a right angle with the unit, and distance to unit should not
beyond 300mm.
1-1.5m
Roof
and
below
280m
Within 300mm
Drain h
Drain raising
Clamp(attachment)
Ceiling
Instruction
☆ The slant gradient of the attached drain hose
should be within 75mm so that the drain hole
doesn’t has to endure the unnecessary outside force.
☆ Please install the drain hose according to the
Drain
hose(attachmen t)
T-tie in join drain hose
Above100
The specs of the
selected
join drain hose
should
fits the
running capacity
of the unit.
☆
☆
☆
Check the smoothness of drain after installation.
Check the drain state by immitting 600cc water slowly from the outlet vent or test hole.
Check the drain in the state of refrigerating after installation of the electric circuit.
[Way of immiting
]
Drain hose
Test hole cover
Drain vent for repair use (plastic
stopper is included) (drain the water
in waterspout by this outlet vent)
Test hole
<
Immiting water from the rest hole
>
Above100
Plastic water pot (The length of the
pipe should be about 100mm.)
<Immiting water from the outlet
vent terminal
>
●
Warning: Before obtaining access to terminals, all supply circuits must be
disconnected.
.
.
. .
below
500m
.
below75m
below500m
ose
hose
220mm
Hoisting
1-1.5m
st
Outdoor Unit Installation
CAUTION
INSTALLATION
Fig.31
INSTRUCTIONS
Fig.32
Outdoor Unit Installation
Electric wiring connection
GUHN18NK3AO
GUHN24NK3AO
GUHN48NM3AO
INS TALLATION INS T R UC T IONS
GUHN36NK3AO
or
CAUTION
Wrong wiring ma y c a us e fire of
electric s hock.
D o not pull the wire when fixing it
with wire cla
Do not let the wire too loose
All
the electrical work must be don
by
qualified personnel according to
the local rules and this
T he rated voltage and the exclusive
circuit must be used.
Le
akage cir
installed.
P lea
s e us e specified fu
If
the power supply cord of the unit
is damaged, it must be replaced by
the manufacturer
An all-pole disconnection air switch which have a contact separation of at least 3mm in all pole is needed.
mp and clasp.
cuit-breaker must
or its service agent or a
instruction.
se.
e
be
similarly qualified person
in
order
to
avoid
a hazard.
Profile
Dimensions of Outdoor Unit
Profile Dimensions of Outdoor Unit
Model
Item
A
B 320 412
C 540 700
D 540 572
E
GUHN18NK3AO
848
286 300
GUHN24NK3AO
1018
Fig. 30
GUHN36NM3AO
1018
412
840
572
378
Uni t mm
GUHN48NM3AO
950
412
1250
572
378
Fig.
Unit Installation Instructions
Precautions on Installation of Outdoor Unit
To ensure the unit in proper function, selection of installation location must be in accordance with
following principles:
(1) Outdoor unit shall be installed so that the air discharged by outdoor unit will not return and that
sufficient space for repair shall be provided around the machine.
The installation site must have good ventilation, so that the outdoor unit can take in and exhaust
enough. Ensure that there is no obstacle for the air intake and exhaust of the outdoor unit. If there
is any obstacle blocking the air intake or exhaust, remove it.
Place of installation shall be strong enough to support the weight of outdoor unit, and it shall be able
to insulate noise and prevent vibration. Ensure that the wind and noise from the unit will not affect
your neighbors.
Avoid direct sunshine over the unit. It is better to set up a sun shield as the protection.
Place of installation must be able to drain the rainwater and defrosting water.
Place of installation must ensure the machine w
ill not be buried under snow or subject to the
influence of rubbish or oil fog.
The installation site must be at a place where the air exhaust outlet does not face strong wind.
Schematic Diagram of Unit Line Connection
INSTALLATION
Electric wiring
The section area of cables selected by users must not be smaller than the specifications show
diagram. The signal wire between indoor and outdoor unit shall be installed in the shielded bushing,
and the unshielded twisted pair cable (UTP) shall be used, the cross sectional area of the cables must
0.75
be
mm2.
GUHN18NK3AO GTH18K3BI
GUHN24NK3AO GTH24K3BI
Outdoor Unit
GUHN36NM3AO GTH36K3BI
Outdoor
Unit
GUHN48NM3AO GTH48K3BI
connection
Intdoor Unit
Intdoor Unit
1 Power cord 3 mm2 (H07RN-F)
2 Power cord 3 1.5mm2 (H05VV-F)
3 Communication Cords (UTP)
1 Power cord 3×6mm
2 Power cord 3×1.5mm
3 Communication Cords (UTP)
1 Power cord 5×4mm
2 Power cord 3×1.5mm
3 Communication Cords (UTP)
2
2
2
2
(H07RN-F)
(H05VV-F)
(H07RN-F)
(H05VV-F)
NSTRUCTIONS
Schematic Diagram of Unit Line Connection
GUHN18NK3AO
GUHN24NK3AO
GUHN36NM3AO
GUHN48NM3AO
All the indoor
units
INSTALLATION NSTRUCTIONS
INSTALLATION NSTRUCTIONS
Position and Method of Installing Wire Controller
Position and Method of Installing Wire Controller
1. One end of the control wire of the manual controller is connected with main board of electric box of
indoor unit inside, it should be tightened by wire clamp, the other end should be connected with the
manual controller (installation sketch map as shown in below). The control wire be used for the
indoor unit and manual controller, which is the special communication wire, the length is 8 meters,
the material be adopted for the control wire should be metallic substance. The manual controller
could not be disassembled and the communication wire be used for the manual controller should not
be changed by users optionally, the installation and maintenance should be carried out by the
professional personnel.
2. First select an installation position. According to the size of the communication line of the wire
controller, leave a recess or a embedded wire hole to bury the communication line.
3.
If the communication line between the wire controller
surface-mounted, use 1# metallic pipe and make matching recess in the wall (refer to Figure 41); If
concealed installation is adopted, 1# metallic pipe can be used (Refer to Figure 42).
4.
No matter if surface mounting or concealed mounting is selected, it is required to drill 2 holes (in the
same level) which distance shall be the same as the distance (60mm) of installation holes in the
(85
x
85 x
16) and the indoor unit is
bottom plate of the wire controller. Then insert a wood plug into each hole. Fix the bottom plate of the
wire controller to the wall by using the two holes. Plug the communication line onto the control panel.
Lastly install the panel of the wire controller.
Caution:
During the installation of the bottom plate of the wire controller, pay attention to the direction of the
bottom plate. The plate’s side with two notches must be at the lower position, and otherwise the panel of
the wire controller cannot be correctly installed.
No.
Name
1
Wall Surface
2
Bottom Plate of Wire Controller
3
Screw M4X10
4
Panel of Wire Controller
Installation instructions
metallic Pipe
Figure 43 Surface
Mounting of Cable
Wire clamp
Electric box cover
Control wire
metallic Pipe
Figure 44 Concealed
mounting of Cable
Cable-cross loop
Communication wire
sketch map for indoor unit
communication wire
1
Figure 45 Schematic Diagram of Installation
2
3
4
Caution:
1.
The communication distance between the main board and the wire controller is 8 meters.
2.
The
wire controller shall not be installed in a place where there is water drop or large amount of
water vapor.
Installation instructions
Caution: Before installing the electrical equipment, please pay attention to the following matters
which have been specially pointed out by our designers:
(1) Check to see if the power supply used conforms to the rated power supply specified on the
nameplate.
(2) The capacity of the power supply must be large enough.
The lines must be installed by professional personnel.
(3)
An electricity leakage protection switch and an air switch with gap between electrode heads larger than
3mm shall be installed in the fixed
1. Connection of single
(1)
(2)
(3)
(4)
Use wire stripper to strip the insulation layer (25mm long) from the end of the single wire.
Remove the screw at the terminal board of the air-conditioning unit.
User pliers to bend the end of the single wire so that a loop matching the screw size is formed.
Put the screw through the loop of the single wire and fix the loop at the terminal board.
2. Connection of multiple twisted wires
(1)
Use wire stripper to strip the insulation layer (10mm long) from the end of the multiple
twisted wires.
(2)
Remove the screw at the terminal board of the air-conditioning unit.
(3)
Use crimping pliers to connect a terminal (matching the size of the screw) at the end of
the multiple twisted wires.
(4)
Put the screw through the terminal of the multiple twisted wires and fix the terminal at the
terminal
board.
Warning:
If the power supply flexible line or the signal line of the equipment is damaged, only use special
flexible line to replace it.
1. Before connecting lines, read the voltages of the relevant parts on the nameplate. Then carry
out line connection according to the schematic
2. The air-conditioning unit shall have special power supply line which shall be equipped with
electricity leakage switch and air switch, so as to deal with overload conditions.
3. The air-conditioning unit must have grounding to avoid hazard owing to insulation failure.
4. All fitting lines must use crimp terminals or single wire. If multiple twisted wires are connected
to terminal board, arc may arise.
5. All line connections must conform to the schematic diagram of lines. Wrong connection may
cause abnormal operation or damage of the air-conditioning unit.
6. Do not let any cable contact the refrigerant pipe, the compressor and moving parts such as fan.
7. Do not change the internal line connections inside the air-conditioning unit. The manufacturer
shall not be liable for any loss or abnormal operation arising from wrong line connections.
Connection of Signal Line of Wire Controller
1. Open the cover of the electric box of the indoor unit.
2. Pull the signal cable of the wire controller through the rubber ring.
3. Plug the signal line of the wire controller onto the 4-bit pin socket(CN9) at the circuit board of the
wire
line.
diagram.
indoor unit.
4. Use cable fastener to bundle and fix the signal cable of the wire controller.
PIPE PREPARATION
OPERATION INSTRUCTIONS
Item
Model
Size of
Fitting
Pipe
(mm)
Max.
Pipe
Length
(m)
Max.
Height
Difference bet
ween
Indoor Unit
and
Outdoor Unit
m
Amount of
Additional
Refrigerant to be
Filled
(For Extra Length of
Pipe)
Gas
Pipe
Liquid
Pipe
GTH18K3BI
1/2”
1/4"
20 15 30g/m
GTH24K3BI
5/8”
3/8”
30 15 60g/m
GTH36K3BI
3/4”
1/2”
50
30
120g/m
GTH48K3BI
REFRIGERANT PIPING WORK
OPERATION INSTRUCTIONS
AIR PURGING AND CHECK OF PIPE LEAKAGE
OPERATION INSTRUCTIONS
LIQUID PIPE AND DRAIN PIPE
OPERATION INSTRUCTIONS
Items to be checked
Possible malfunction
Situation
Has it been fixed firmly?
The unit may drop, shake or emit noise.
Have you done the refrigerant leakage test?
It may cause insufficient refrigerating capacity.
Is heat insulation sufficient?
It may cause condensation and dripping.
Does the unit drain well?
It may cause condensation and dripping.
Is the voltage in accordance with the rated
voltage marked on the nameplate?
It may cause electric malfunction or damage the
part.
Is the electrical wiring and piping connection
installed correctly and securely?
It may cause electric malfunction or damage the
part.
Has the unit been connected to a secure earth
connection?
It may cause electrical leakage.
Is the power cord specified?
It may cause electric malfunction or damage the
part.
Has the inlet and outlet been covered?
It may cause insufficient refrigerating capacity.
Has the length of connection pipes and the
refrigerant charge been record?
The refrigerating capacity is not accurate
Check after installation
WARNING!
1. This appliance is not intended for use by persons (including children) with reduced
physical sensory or capabilities, or lack of experience and knowledge, unless they have
been given supervision or instruction concerning use of the appliance by a person
responsible for their safety.
2. Children should be supervised to ensure that they do not play with the appliance.
This product must not be disposed together with the domestic
waste. This product has to be disposed at an authorized place
for recycling of electrical and electronic appliances.
66129904712
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