Delta 26WB024I24-070DWFXZ, 26WC012I24-035DWG, 26WB018I24-053DWFXZ, 26WB012I24-035DWFXZ, 26WB009I24-028DWFXZ Instruction Manual
...
MINI SPLIT INVERTER- INSPIRE Ultra 16
26WC Series
INSTRUCTION MANUAL
WARNING!
Read and follow all safety precautions in
Instruction Manual - improper use can cause
serious injury.
www.delta-dct.com
26WC012I24-035DWG
26WC018I24-053DWG
26WC024I24-070DWG
26WC009I24-028DWG
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.
Children should be supervised to ensure they are away from the appliance.
Do not dispose this product as unsorted municipal waste. Collection of
such waste separately for special treatment is necessary.
Content
Operation Notices
Precautions............................................................................................................1
Parts name ............................................................................................................6
Screen Operation Guide
Buttons on remote controller .................................................................................7
Introduction for icons on display screen ................................................................7
Introduction for buttons on remote controller .........................................................8
Function introduction for combination buttons .....................................................10
Operation guide ...................................................................................................11
Replacement of batteries in remote controller .....................................................11
Emergency operation ..........................................................................................12
Maintenance
Clean and maintenance.......................................................................................12
Malfunction
Malfunction analysis ............................................................................................15
Installation Notice
Installation dimension diagram ............................................................................19
Tools for installation .............................................................................................20
Selection of installation location ..........................................................................20
Requirements for electric connection ..................................................................21
Installation
Installation of indoor unit......................................................................................22
Installation of outdoor unit ...................................................................................27
Vacuum pumping .................................................................................................30
Leakage detection ...............................................................................................30
Check after installation ........................................................................................31
Test and operation
Test operation ......................................................................................................31
Attachment
.........................................................................32
Pipe expanding method .......................................................................................34
Precautions
WARNING
Do not connect air conditioner to multi-purpose socket.
This appliance can be used by children aged from 8
Operation and Maintenance
If the supply cord is damaged, it must be replaced by
the manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
Do not spray water on indoor unit. It may cause electric
shock or malfunction.
Otherwise, it may cause fire hazard.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by
children without supervision.
years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe
way and understand the hazards involved.
Do not wash the air conditioner with water to avoid
electric shock.
After removing the filter, do not touch fins to avoid injury.
Do not use fire or hair dryer to dry the filter to avoid
deformation or fire hazard.
Do disconnect power supply when cleaning air
conditioner. Otherwise, it may cause electric shock.
.
1
Do not block air outlet or air inlet. It may cause
malfunction.
remote controller may be broken.
● Power cord is overheating or damaged.
● There’s abnormal sound during operation.
● Circuit break trips off frequently.
● Air conditioner gives off burning smell.
● Indoor unit is leaking.
contact the dealer or qualified professionals for service.
When turning on or turning off the unit by emergency
operation switch, please press this switch with an insulating
object other than metal.
outlet. It may cause personal injury or damage.
Precautions
WARNING
conditioner and disconnect power immediately, and then
If the air conditioner operates under abnormal conditions,
it may cause malfunction, electric shock or fire hazard.
Do not spill water on the remote controller, otherwise the
electric shock or damage. Please contact dealer when
you need to repair air conditioner.
Do not repair air conditioner by yourself. It may cause
objects. It may cause damage or personal injury.
Do not step on top panel of outdoor unit, or put heavy
When below phenomenon occurs, please turn off air
Do not extend fingers or objects into air inlet or air
Maintenance must be performed by qualified
professionals. Otherwise, it may cause personal injury
or damage.
2
Do install the circuit break. If not, it may cause malfunction.
of at least 3mm in all poles should be connected in fixed
wiring.
magnet buckle
and heating buckle function, it can protect
the circuit-short and
overload.
power supply circuit and circuit break.
Precautions
WARNING
note
the following table.Air switch should be included
Make sure the power supply matches with the
requirement of air conditioner.Unstable power supply or
incorrect wiring or malfunction. Please install proper power
supply cables before using the air conditioner.
An all-pole disconnection switch having a contact separation
Must follow the electric safety regulations when installing
the unit.
grounding wire of power socket.
Properly connect the live wire, neutral wire and
any work related to electricity and safety.
Be sure to cut off the power supply before proceeding
Including an circuit break with suitable capacity, please
Air Conditioner should be properly grounded. Incorrect
Don't use unqualified power cord.
grounding may cause electric shock.
According to the local safety regulations, use qualified
Installation must be performed by qualified professionals.
Otherwise, it may cause personal injury or damage.
Attachment
3
Installation must be performed in accordance with the
persons in order to avoid a hazard.
must be properly grounding with specialized grounding
device by a professional. Please make sure it is always
grounded effectively, otherwise it may cause electric shock.
The appliance must be positioned so that the plug is
accessible.
If the length of power connection wire is insufficient, please
contact the supplier for a new one. Avoid extending the
wire by yourself.
All wires of indoor unit and outdoor unit should be
connected by a professional.
national wiring regulations.
requirement of NEC and CEC by authorized personnel
only.
Precautions
WARNING
wire, which can't be used for other purposes.
The grounding resistance should comply with national
electric safety regulations.
The air conditioner is the first class electric appliance. It
keep the interconnection cable away from the copper
tube.
The temperature of refrigerant circuit will be high, please
the manufacturer, its service agent or similarly qualified
If the supply cord is damaged, it must be replaced by
The yellow-green wire in air conditioner is grounding
The appliance shall be installed in accordance with
Do not put through the power before finishing installation.
4
The indoor unit should be installed close to the wall.
Instructions for installation and use of this product are
provided by the manufacturer.
Precautions
WARNING
place, only the qualified person can perform the work.
Otherwise, it may cause personal injury or damage.
If you need to relocate the air conditioner to another
must be installed in the line.
For the air conditioner without plug, an circuit break
far away from animals or plants.If it is unavoidable,
please add the fence for safety purpose.
Select a location which is out of reach for children and
reachable after finishing installation.
For the air conditioner with plug, the plug should be
Working temperature range
NOTICE:
5
Indoor side DB/WB(℃) Outdoor side DB/WB(℃)
Maximum cooling 32/23 43/26
Maximum heating 27/- 24/18
● The operating temperature range (outdoor temperature) for cooling only unit is
18℃~ 43℃; for heat pump unit is -7℃~ 43℃.
6
(Display content or position may be different from above
graphics, please refer to actual products)
Parts name
Indoor Unit
Outdoor Unit
air inlet
panel
aux.button
horizontal louver
air outlet
heating
indicator
temp.
indicator
cooling
indicator
power
indicator
receiver
window
drying
indicator
display
remote control
air inlet
handle
air outlet
NOTICE:
Actual product may be different from above graphics, please refer to actual
products.
7
Buttons on remote controller
Introduction for icons on display screen
21
3
4 5
6 7
1
3
5
2
4
6
7
ON/OFF button
MODE button
+/- button
FAN button
SWING button
SLEEP button
TIMER button
Timer on Timer off
Sending signal
swing operation
sleep operation
lock
set speed
Set timeSet temperature
heat operation
fan operation
dry operation
cool operation
auto operation
8
Introduction for buttons on remote controller
Note:
●
When power is connected(stand by condition), you can operate the air conditioner
through the remote controller.
●
When unit is on, each time you press the button on remote controller, the sending
signal icon " " on the display of remote controller will blink once. If the air con ditioner gives out a beep sound, it means the signal has been sent.
● When unit is off, set temperature will be displayed on the remote controller (If the
light of indoor unit display is turned on, the corresponding icon will be displayed);
When unit is on, it will display the icon of the on-going function.
Press this button to turn unit on/off.
ON/OFF button
1
Pressing this button once can select your required mode circularly as below (the
corresponding icon " " will be lit up after the mode is selected):
●
When selecting auto mode, air conditioner will operate automatically according to
ambient temperature. Set temperature can't be adjusted and won't be displayed
either.
Press FAN button to adjust fan speed.
● When selecting cool mode, air conditioner will operate under cool mode. Then
press + or - button to adjust set temperature. Press FAN button to adjust fan speed.
● When selecting dry mode, air conditioner will operate at low fan speed under dry
mode. In dry mode, fan speed can't be adjusted.
● When selecting fan mode, air conditioner will operate in fan mode only. Then
press FAN button to adjust fan speed.
● When selecting heat mode, air conditioner will operate under heat mode. Then
press + or - button to adjust set temperature. Press FAN button to adjust fan speed.
(Cooling only unit can’t receive heating mode signal. If set HEAT mode by remote
controller, press ON/OFF button can’t turn on the air conditioner.)
AUTO COOL DRY FAN HEAT(Only for models with heating function.)
MODE button
2
●
Pressing + or - button once will increase or decrease set temperature by 1°F(°C).
Hold + or - button for 2s, set temperature on remote controller will change quickly.
Release the button after your required set temperature is reached.
● When setting Timer On or Timer Off, press + or - button to adjust the time. (See
TIMER Button for setting details)
+ / - button
3
9
Introduction for buttons on remote controller
Note:
● Under Auto speed, air conditioner will select proper fan speed automatically
according to ambient temperature.
● Fan speed can't be adjusted under Dry mode.
Pressing this button can select fan speed circularly as: AUTO, SPEED 1 ( ),
SPEED 2 ( ), SPEED 3 ( ), SPEED 4 ( ) .
AUTO
FAN button
4
Press this button to turn on up&down air swing.
SWING button
5
Under Cool, Heat and Dry mode, press this button to turn on Sleep function. Press
this button to cancel Sleep function. Under Fan and Auto mode, this function is
unavailable.
SLEEP button
6
● When unit is on, press this button to set Timer Off. T-OFF and H icon will be
blinking. Within 5s, press + or - button to adjust the time for Timer Off. Pressing
+ or - button once will increase or decrease the time by 0.5h. Hold + or - button
for 2s, time will change quickly. Release the button after your required set time
is reached. Then press TIMER button to confirm it. T-OFF and H icon will stop
blinking.
● When unit is off, press this button to set Timer On. T-ON and H icon will be
blinking. Within 5s, press + or - button to adjust the time for Timer On. Pressing
+ or - button once will increase or decrease the time by 0.5h. Hold + or - button
for 2s, time will change quickly. Release the button after your required set time
is reached. Then press TIMER button to confirm it. T-ON and H icon will stop
blinking.
● Cancel Timer On/Off: If Timer function is set up, press TIMER button once to
review the remaining time. Within 5s, press TIMER button again to cancel this
function.
TIMER button
7
10
Introduction for buttons on remote controller
Function introduction for combination buttons
Press “+” and “-” buttons simultaneously can turn on or turn off child lock function.
When child lock function is started up, LOCK indicator on remote controller is ON.
If you operate the remote controller, remote controller won’t send signal.
Note:
● Range of time setting is: 0.5~24h
● The interval between two motions can't exceed 5s, otherwise the remote con-
troller will exit setting status.
Child lock function
Temperature display switchover function
Under OFF status, press “-” button and “MODE” button simultaneously can switch
between °C and °F.
11
Operation guide
Replacement of batteries in remote controller
● During operation, point the remote control signal sender at the receiving
window on indoor unit.
●
The distance between signal sender and receiving window should be no more
than 8m, and there should be no obstacles between them.
or wireless telephone; remote controller should be close to indoor unit during
operation.
● Replace new batteries of the same model when replacement is required.
● When you don’t use remote controller for a long time, please take out the
batteries.
● If the display on remote controller is fuzzy or there’s no display, please
replace batteries.
1.
After putting through the power, press "ON/OFF" button on remote controller to
turn on the air conditioner.
2.
Press "MODE" button to select your required mode: AUTO, COOL, DRY, FAN,
HEAT.
3.
Press "+" or "-" button to set your required temperature. (Temperature can’t be
adjusted under auto mode).
4.
Press "FAN" button to set your required fan speed: auto, low, medium and high
speed.
5.
Press "SWING" button to select fan blowing angle.
reinstall
remove
battery
cover of battery box
1. Press the back side of remote controller on the
spot marked with " ", and then push out the
cover of battery box along the arrow direction.
2. Replace two No.7 (AAA 1.5V) dry batteries and
make sure the positions of + and- polar are
correct.
3. Reinstall the cover of battery box.
NOTICE
12
Emergency operation
If remote controller is lost or damaged, please use auxiliary button to turn
on or turn off the air conditioner. The operation in details are as below:
air conditioner. When the air conditioner is turned on, it will operate under
auto mode.
aux. button
panel
Clean and maintenance
■ Turn off the air conditioner and disconnect the power before cleaning the air
conditioner to avoid electric shock.
■ Do not wash the air conditioner with water to avoid electric shock.
■ Do not use volatile liquid to clean the air conditioner.
Clean surface of indoor unit
When the surface of indoor unit is dirty, it is recommended to use a soft dry cloth
or wet cloth to wipe it.
NOTICE:
● Do not remove the panel when cleaning it.
WARNING
13
Clean and maintenance
1
2
3
4
Open panel
Pull out the panel to a certain ● Use dust catcher or water to
the water (below 45
℃
) to clean
it, and then put it in a shady
and cool place to dry.
panel cover tightly.
operation environment, clean frequency can be increased.
WARNING
14
Clean and maintenance
1. Check whether air inlets and air outlets are blocked.
2. Check whether circuit break, plug and socket are in good condition.
4. Check whether mounting bracket for outdoor unit is damaged or corroded.
If yes, please contact dealer.
5. Check whether drainage pipe is damaged.
1. Disconnect power supply.
3. Check whether mounting bracket for outdoor unit is damaged or corroded.
If yes, please contact dealer.
Notice for recovery
1. Many packing materials are recyclable materials.
Please dispose them in appropriate recycling unit.
2. If you want to dispose the air conditioner, please contact local dealer or
consultant service center for the correct disposal method.
NOTICE: Checking before use-season
NOTICE: Checking after use-season
15
Malfunction analysis
General phenomenon analysis
Please check below items before asking for maintenance. If the malfunction still
can’t be eliminated, please contact local dealer or qualied professionals.
Phenomenon Check items Solution
Indoor unit
can’t receive
remote
controller’s
signal or
remote
controller
has no
action.
● Whether it's interfered severely
(such as static electricity, stable
voltage)?
● Whether remote controller is
within the signal receiving
range?
● Whether there are obstacles?
● Whether remote controller is
pointing at the receiving
window?
● Is sensitivity of remote contro ller low; fuzzy display and no
display?
● No display when operating
remote controller?
● Fluorescent lamp in room?
● Pull out the plug. Reinsert
the plug after about 3min, and
then turn on the unit again.
● Signal receiving range is 8m.
● Remove obstacles.
●
Select proper angle and point
the remote controller at the re ceiving window on indoor unit.
● Check the batteries. If the
power of batteries is too low,
please replace them.
● Take the remote controller
close to indoor unit.
● Turn off the uoresent lamp
and then try it again.
● Check whether remote cont-
roller appears to be damaged.
If yes, replace it.
No air
emitted
from
indoor
unit
● Air inlet or air outlet of indoor
unit is blocked?
● Eliminate obstacles.
● Under heating mode, indoor
temperature is reached to set
temperature?
● After reaching to set temper-
ature, indoor unit will stop bl owing out air.
● Heating mode is turned on just
now?
● In order to prevent blowing
out cold air, indoor unit will be
started after delaying for sev eral minutes, which is a nor mal phenomenon.
16
Malfunction analysis
● Power failure?
● Is plug loose?
● Circuit break trips off or
fuse is burnt out?
● Wiring has malfunction?
● Unit has restarted immediately
after stopping operation?
● Whether the function setting
for remote controller is
correct?
● Reset the function.
● Wait for 3min, and then turn
on the unit again.
● Ask professional to replace it.
● Ask professional to replace
circuit break or fuse.
● Reinsert the plug.
● Wait until power recovery.
Air condit-
ioner can’t
operate
Mist is emitted from
indoor unit’s
air outlet
● Indoor temperature and hum-
idity is high?
● Because indoor air is cooled
rapidly. After a while, indoor
temperature and humidity will
be decrease and mist will
disappear.
Phenomenon
Check items Solution
Set temperature can’t
be adjusted
● Unit is operating under auto
mode?
● Temperature can’t be adju-
sted under auto mode.
Please switch the operation
mode if you need to adjust
temperature.
● Your required temperature
exceeds the set temperature
range?
● Set temperature range:
16℃~30℃.
Cooling
(heating)
effect is
not good.
● Voltage is too low?
● Wait until the voltage
resumes normal.
● Filter is dirty? ● Clean the lter.
● Set temperature is in proper
range?
● Adjust temperature to proper
range.
● Door and window are open? ● Close door and window.
17
Phenomenon Check items Solution
Odours are
emitted
● Whether there’s odour source,
such as furniture and cigarette,
etc.
● Eliminate the odour source.
● Clean the lter.
Air conditio-
ner operates
abnormally
● Whether there’s interference,
such as thunder, wireless
devices, etc.
● Disconnect power, put back
power, and then turn on the
unit again.
Outdoor
unit has
vapor
● Heating mode is turned on?
● During defrosting under he-
ating mode, it may generate
vapor, which is a normal
phenomenon.
“Water
owing”
noise
● Air conditioner is turned on or
turned off just now?
● The noise is the sound of
refrigerant owing inside
the unit, which is a normal
phenomenon.
Cracking
noise
● Air conditioner is turned on or
turned off just now?
● This is the sound of friction
caused by expansion and/or
contraction of panel or other
parts due to the change of
temperature.
Malfunction analysis
18
Malfunction analysis
Error Code
● When air conditioner status is abnormal, temperature indicator on indoor unit will
ation of error code.
Indoor
display
Error code
Above indicator diagram is only
for reference. Please refer to
actual product for the actual
indicator and position.
■ When below phenomenon occurs, please turn off air conditioner and discon-
for service.
● Power cord is overheating or damaged.
● There’s abnormal sound during operation.
● Circuit break trips off frequently.
● Air conditioner gives off burning smell.
● Indoor unit is leaking.
■ If the air conditioner operates under abnormal conditions, it may cause
service.
Error code
E5
H6
C5
F1
F2
E6
Troubleshooting
t
It can be eliminated af er restarting the unit. If not, please
It can be eliminated after restarting the unit. If not, please
Means defrosting status. It’s the normal phenomenon.
H1( )
Heating indicator
ON 10s OFF 0.5s
It can be eliminated after restarting the unit. If not, please
contact qualified professionals for service.
WARNING
19
Installation dimension diagram
Drainage pipe
At least 250cm
At least 15cm
At least 50cm
At least 50cm
At least
30cm
At least 300cm
At least 200cm
Space to the oor
Space to the obstruction
Space to the
obstruction
Space to the
obstruction
Space to the ceiling
Space to the obstruction
Space to the obstruction
At least 30cm
At least 15cm
At least 15cm
Space to the wall
Space to the wall
Space to the wall
20
1. There should be no obstruction near air
inlet and air outlet.
2. Select a location where the condensat ion water can be dispersed easily and
won't affect other people.
3. Select a location which is convenient to
connect the outdoor unit and near the
power socket.
4. Select a location which is out of reach
for children.
5.
The location should be able to withstand
the weight of indoor unit and won't incr ease noise and vibration.
6.
The appliance must be installed 2.5m
above oor.
7. Don't install the indoor unit right above
the electric appliance.
8. Please try your best to keep way from
uorescent lamp.
Tools for installation
Selection of installation location
1 Level meter 2 Screw driver 3 Impact drill
4 Drill head 5 Pipe expander 6 Torque wrench
7 Open-end wrench 8 Pipe cutter
9 Leakage detector
10 Vacuum pump 11 Pressure meter 12 Universal meter
13 Inner hexagon spanner 14 Measuring tape
Note:
● Please contact the local agent for installation.
● Don't use unqualied power cord.
Basic requirement
Outdoor unit
Indoor unit
Installing the unit in the following places maycause malfunction. If it is unavoidable, please consult the local
dealer:
1.The place with strong heat sources,
vapors, ammable or explosive gas
,
or volatile objects spread in the air.
2.The place with high-frequency
devices (such as welding machine,
medical equipment).
3.The place near coast area.
4.
The place with oil or fumes in the air.
5.The place with sulfureted gas.
6.Other places with special circums tances.
7.Do not use the unit in the immediate
surroundings of a laundry a bath a
shower or a swimming pool.
1. Select a location where the noise and outow air emitted by the outdoor unit
will not affect neighborhood.
2. The location should be well ventilated and dry, in which the outdoor unit
won't be exposed directly to sunlight or strong wind.
3. The location should be able to withstand the weight of outdoor unit.
4. Make sure that the installation follows the requirement of installation
dimension diagram.
5. Select a location which is out of reach for children and far away from animals
or plants.If it is unavoidable, please add the fence for safety purpose.
21
Requirements for electric connection
Safety precaution
Grounding requirement
1. Must follow the electric safety regulations when installing the unit.
circuit break.
3. Make sure the power supply matches with the requirement of air conditioner.
Unstable power supply or incorrect wiring or malfunction. Please install proper
power supply cables before using the air conditioner.
4. Properly connect the live wire, neutral wire and grounding wire of power socket.
5. Be sure to cut off the power supply before proceeding any work related to
electricity and safety.
7. If the supply cord is damaged, it must be replaced by the manufacturer, its
8. The temperature of refrigerant circuit will be high, please keep the interconnec tion cable away from the copper tube.
9. The appliance shall be installed in accordance with national wiring regulations.
10.Installation must be performed in accordance with the requirement of NEC
and CEC by authorized personnel only.
grounding with specialized grounding device by a professional. Please make
sure it is always grounded effectively, otherwise it may cause electric shock.
2. The yellow-green wire in air conditioner is grounding wire, which can't be used
for other purposes.
3. The grounding resistance should comply with national electric safety regulations.
4. The appliance must be positioned so that the plug is accessible.
5. An all-pole disconnection switch having a contact separation of at least 3mm in
6. Including an circuit break with suitable capacity, please note the following table.
Air switch should be included magnet buckle and heating buckle function, it can
protect the circuit-short and overload. (Caution: please do not use the fuse only
for protect the circuit)
Air-conditioner Circuit break capacity
18K(cooling only model)
18K(cooling and heating model)
24K
20A
25A
25A
12K 16A
09K 10A
22
Installation of indoor unit
Step one: choosing installation location
Step two: install wall-mounting frame
rm it with the client.
1. Hang the wall-mounting frame on the wall; adjust it in horizontal position with the
plastic expansion particles in the holes.
3. Fix the wall-mounting frame on the wall with tapping screws (ST4.2X25TA) and
.
1. Choose the position of piping hole according to the direction of outlet pipe. The
position of piping hole should be a little lower than the wall-mounted frame,
shown as below.
Step three: open piping hole
2. Open a piping hole with the diameter of Φ55 or Φ70 on the selected outlet pipe
position. In order to drain smoothly, slant the piping hole on the wall slightly
downward to the outdoor side with the gradient of 5-10°.
18K:
Left
Wall
Φ55mm Φ55mm
Right
Mark in the middle of it
Level meter
Rear piping hole
Wall
Space
to the
wall
above
150mm
Space
to the
wall
above
150mm
Rear piping hole
24K:
Left
Wall
Φ70mm
Right
Mark in the middle of it
Level meter
Rear piping hole
Wall
Space
to the
wall
above
150mm
Space
to the
wall
above
150mm
Φ70mm
Rear piping hole
09、12K:
Left
Wall
Φ55/Φ70
Right
Mark in the middle of it
Level meter
Rear piping hole
Wall
Space
to the
wall
above
150mm
Space
to the
wall
above
150mm
Φ55/Φ70
Rear piping hole
23
1. Aim the pipe joint at the corresponding
bellmouth.
2. Pretightening the union nut with hand.
3. Adjust the torque force by referring to the following sheet. Place the open-end
wrench on the pipe joint and place the torque wrench on the union nut. Tighten
the union nut with torque wrench.
2. When select leading out the pipe
from left or right, please cut off the
corresponding hole on the bottom
case.
cut off
the hole
left right
1. The pipe can be led out in the
direction of right, rear right, left or
rear left.
left
rear left
right
rear right
Step four: outlet pipe
Installation of indoor unit
union nutpipe joint
pipe
Note:
● Pay attention to dust prevention and
take relevant safety measures when
opening the hole.
● The plastic expansion particles are
not provided and should be bought
locally.
Indoor
5-10
outdoor
Φ55/
Φ70
24
4. Wrap the indoor pipe and joint of con nection pipe with insulating pipe, and
then wrap it with tape.
Step six: install drain hose
Installation of indoor unit
torque wrench
open-end
wrench
indoor pipe
pipe
union nut
Hex nut diameter Tightening torque (N.m)
Φ 6
Φ 9.52
Φ 12
Φ 16
Φ 19
30~40
45~55
60~65
70~75
15~20
insulating pipe
1. Connect the drain hose to the outlet pipe of
indoor unit.
2. Bind the joint with tape.
outlet
pipe
drain hose
drain hose
tape
outlet pipe
drain hose
insulating pipe
Note:
● Add insulating pipe in the indoor
drain hose in order to prevent
condensation.
● The plastic expansion particles are
not provided.
1. Open the panel, remove the screw
on the wiring cover and then take
down the cover.
wiring cover
screw
panel
Step seven: connect wire of indoor unit
25
4. Put wiring cover back and then tighten the screw.
5. Close the panel.
Installation of indoor unit
Note:
● All wires of indoor unit and outdoor unit should be connected by a professional.
for a new one. Avoid extending the wire by yourself.
installation.
● For the air conditioner without plug, an circuit break must be installed in the line.
The circuit break should be all-pole parting and the contact parting distance
should be more than 3mm.
3. Remove the wire clip; connect the power connection wire to the wiring terminal
with wire clip.
power connection
wire
cable-cross
hole
2. Make the power connection wire go
through the cable-cross hole at the back
of indoor unit and then pull it out from
the front side.
2 3N(1)
2 3N(1) L1 L2 G
Outdoor unit connection
18、24K:09、12K:
2 3N(1)
Outdoor unit connection
L2L1
2 3N(1)
26
Installation of indoor unit
Step eight: bind up pipe
1. Bind up the connection pipe, power
cord and drain hose with the band.
indoor unit
gas
pipe
indoor and
outdoor power cord
liquid pipe
drain hose
band
2. Reserve a certain length of drain
hose and power cord for installation
when binding them. When binding to
a certain degree, separate the indoor
power and then separate the drain
hose.
3. Bind them evenly.
4. The liquid pipe and gas pipe should
be bound separately at the end.
Note:
● The power cord and control wire
can't be crossed or winding.
● The drain hose should be bound
at the bottom.
drain hose
band
connection pipe
indoor power cord
Step nine: hang the indoor unit
1. Put the bound pipes in the wall pipe and then make them pass through the wall
hole.
2. Hang the indoor unit on the wall-mounting frame.
3. Stuff the gap between pipes and wall hole with sealing gum.
4. Fix the wall pipe.
5. Check if the indoor unit is installed rmly and closed to the wall.
Note:
● Do not bend the drain hose too excessively in order to prevent blocking.
indoor
outdoor
wall pipe
sealing gum
upper hook
lower hook of
wall-mounting frame
27
Installation of outdoor unit
Step one: x the support of outdoor unit
(select it according to the actual installation situation)
1. Select installation location according to the house structure.
2. Fix the support of outdoor unit on the selected location with expansion screws.
at least 3cm above the floor
Note:
● Take sufcient protective measures when
installing the outdoor unit.
●
Make sure the support can withstand at least
four times of the unit weight.
● The outdoor unit should be installed at least
3cm above the oor in order to install drain
joint.
● For the unit with cooling capacity of 2300W
~5000W, 6 expansion screws are needed;
for the unit with cooling capacity of 6000W
~8000W, 8 expansion screws are needed;
for the unit with cooling capacity of 10000W
~16000W, 10 expansion screws are needed.
Step two: install drain joint
(Only for cooling and heating
unit)
1. Connect the outdoor drain joint into
the hole on the chassis, as shown in
the picture below.
2. Connect the drain hose into the drain
vent.
chassis
outdoor drain joint
Drain hose
drain vent
Step three: x outdoor unit
1. Place the outdoor unit on the
support.
2. Fix the foot holes of outdoor unit
with bolts.
foot holes
foot holes
28
Installation of outdoor unit
Step four: connect indoor and outdoor pipes
1. Remove the screw on the right han dle of outdoor unit and then remove
the handle.
2. Remove the screw cap of valve and
aim the pipe joint at the bellmouth of
pipe.
3. Pretightening the union nut with
hand.
4. Tighten the union nut with torque
wrench by referring to the sheet
below.
handle
screw
gas pipe
liquid pipe
liquid
valve
gas valve
union nut
pipe joint
Hex nut diameter
Tightening torque
(N.m)
Φ 6
Φ 9.52
Φ 12
Φ 16
Φ 19
30~40
45~55
60~65
70~75
15~20
1. Remove the wire clip; connect the power connection wire and signal control
wire (only for Cool and heat type) to the wiring terminal according to the color;
Indoor unit connectionIndoor unit connection
2 3 L1
L1
L2
L2 GN(1)
2 3N(1)
POWER
18、24K:09、12K:
2 3N(1)
L2L1
2 3N(1)
L1
L2
POWER
29
Step six: neaten the pipes
1. The pipes should be placed along the wall,
bent reasonably and hidden possibly. Min.
semidiameter of bending the pipe is 10cm.
2. If the outdoor unit is higher than the wall
hole, you must set a U-shaped curve in the
pipe before pipe goes into the room, in
order to prevent rain from getting into the
room.
● The through-wal height of drain hose
shouldn't be higher than the outlet
pipe hole of indoor unit.
● Slant the drain hose slightly dow-
nwards. The drain hose can't be
curved, raised and uctuant, etc.
● The water outlet can't be placed
in water in order to drain smoothly.
Installation of outdoor unit
U-shaped curve
wall
drain hose
the drain hose
can't raise
upwards.
The drain hose can't be fluctuant
The drain hose
can't be fluctuant
The water
outlet can't be
fluctuant
The water outlet
can't be placed
in water
Note:
2. Fix the power connection wire and signal control wire with wire clip (only for
cooling and heating unit).
Note:
● After tighten the screw, pull the power cord slightly to check if it is rm.
● Never cut the power connection wire to prolong or shorten the distance.
30
Vacuum pumping
Leakage detection
1. Remove the valve caps on
the liquid valve and gas
valve and the nut of refri gerant charging vent.
2. Connect the charging hose
of piezometer to the refri-
gerant charging vent of gas
valve and then connect the
other charging hose to the
vacuum pump.
3. Open the piezometer com-
pletely and operate for
10-15min to check if the
pressure of piezometer re-
mains in -0.1MPa.
4. Close the vacuum pump
and maintain this status for
1-2min to check if the pres-
sure of piezometer remains
in -0.1MPa. If the pressure decreases, there may be leakage.
5. Remove the piezometer, open the valve core of liquid valve and gas valve
completely with inner hexagon spanner.
6. Tighten the screw caps of valves and refrigerant charging vent.
7. Reinstall the handle.
Use vacuum pump
liquid valve
gas valve
refrigerant
charging vent
nut of refrigerant
charging vent
vacuum pump
piezometer
valve cap
Lo Hi
inner hexagon
spanner
open
close
1. With leakage detector:
Check if there is leakage with leakage detector.
2. With soap water:
If leakage detector is not available, please use soap water for leakage detection.
Apply soap water at the suspected position and keep the soap water for more
than 3min. If there are air bubbles coming out of this position, there's a leakage.
31
Check after installation
Test operation
● Check according to the following requirement after nishing installation.
Items to be checked Possible malfunction
Has the unit been installed rmly? The unit may drop, shake or emit noise.
Have you done the refrigerant leakage
test?
It may cause insufcient cooling
(heating) capacity.
Is heat insulation of pipeline sufcient?
It may cause condensation and water
dripping.
Is water drained well?
It may cause condensation and water
dripping.
Is the voltage of power supply according to the voltage marked on the
nameplate?
It may cause malfunction or damaging
the parts.
Is electric wiring and pipeline installed
correctly?
It may cause malfunction or damaging
the parts.
Is the unit grounded securely? It may cause electric leakage.
Does the power cord follow the speci-
cation?
It may cause malfunction or damaging
the parts.
Is there any obstruction in the air inlet
and outlet?
It may cause insufcient cooling
(heating) capacity.
The dust and sundries caused during
installation are removed?
It may cause malfunction or damaging
the parts.
The gas valve and liquid valve of
connection pipe are open completely?
It may cause insufcient cooling
(heating) capacity.
1. Preparation of test operation
● The client approves the air conditioner.
● Specify the important notes for air conditioner to the client.
2. Method of test operation
● Put through the power, press ON/OFF button on the remote controller to start
operation.
● Press MODE button to select AUTO, COOL, DRY, FAN and HEAT to check
whether the operation is normal or not.
● If the ambient temperature is lower than 16
℃
, the air conditioner can’t
start cooling.
32
Conguration of connection pipe
1. Standard length of connection pipe
● 5m, 7.5m, 8m.
4. The additional refrigerant oil and refrigerant charging required after prolonging
connection pipe
● After the length of connection pipe is prolonged for 10m at the basis of
standard length, you should add 5ml of refrigerant oil for each additional 5m
of connection pipe.
● The calculation method of additional refrigerant charging amount (on the basis
of liquid pipe):
Additional refrigerant charging amount = prolonged length of liquid pipe ×
additional refrigerant charging amount per meter
● When the length of connection pipe is above 5m, add refrigerant according to
the prolonged length of liquid pipe. The additional refrigerant charging amount
per meter is different according to the diameter of liquid pipe. See the
following sheet.
Cooling
capacity
Cooling
capacity
5000Btu/h
(1465W)
24000Btu/h
(7032W)
7000Btu/h
(2051W)
28000Btu/h
(8204W)
9000Btu/h
(2637W)
36000Btu/h
(10548W)
12000Btu/h
(3516W)
42000Btu/h
(12306W)
18000Btu/h
(5274W)
48000Btu/h
(14064W)
Max height
difference
Max height
difference
Max length
of connection pipe
Max length
of connection pipe
15 255 10
15 305 10
15 305 20
20 3010 20
25 3010 20
2. Min. length of connection pipe is 3m.
3. Max. length of connection pipe and max. high difference.
33
Additional refrigerant charging amount for R22, R407C, R410A and R134a
Diameter of connection pipe
Liquid pipe(mm) Gas pipe(mm)
Φ6
Φ6 or Φ9.52
Φ12
Φ16
Φ19
Φ22.2
Φ9.52 or Φ12
Φ16 or Φ19
Φ19 or Φ22.2
Φ25.4 or Φ31.8
_
_
Cooling only(g/m) Cooling and heating(g/m)
15
15
30
60
250 250
350
350
120
120
50
20
Outdoor unit throttle
Conguration of connection pipe
34
Pipe expanding method
Note:
Improper pipe expanding is the main cause of refrigerant leakage. Please expand
the pipe according to the following steps:
A: Cut the pipe
● Conrm the pipe length according to
the distance of indoor unit and
outdoor unit.
● Cut the required pipe with pipe cutter.
pipe
pipe cutter
leaning uneven burr
B: Remove the burrs
● Remove the burrs with shaper and
prevent the burrs from getting into
the pipe.
downwards
pipe
shaper
C: Put on suitable insulating pipe
D: Put on the union nut
● Remove the union nut on the indoor
connection pipe and outdoor valve;
install the union nut on the pipe.
union pipe
pipe
E: Expand the port
● Expand the port with expander.
Note:
● "A" is different according to the
diameter, please refer to the sheet
below:
expander
hard
mold
pipe
F: Inspection
● Check the quality of expanding port.
If there is any blemish, expand the
port again according to the steps
above.
the length is equal
improper expanding
leaning
damaged
surface
crack uneven
thickness
smooth surface
Outer diameter
(mm)
A(mm)
Max Min
Φ6-6.35(1/4")
Φ9.52(3/8")
Φ12-12.7(1/2")
Φ15.8-16(5/8")
1.3 0.7
1.6 1.0
1.8 1.0
2.4 2.2
Thank you for Choosing
airconditioners
Perfectly engineered for your comfort.
www.delta-dct.com
661299 165 16
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