Kahn Little boy Instruction Manual

www.kahnclimatecontrol.co.uk
Thank’s for choosing Kahn. Please read this user handbook carefully prior to
Incorrect use may cause fire, electric shock and the unit falling may result in
injury or leakage. Contact our designated Kahn service centre on 0333 222 4016
specialists.
The manufacturer shall not assume responsibility for accidents or injury
caused by incorrect use.
This product must not be disposed together with the domestic waste.
This product has to be disposed at an authorised place for recycling
of electrical and electronic appliances.
Kahn Climate Control
LITTLE BOY
user handbook
installing and keep it for further reference.
Thank’s for choosing Kahn. Please read this user handbook carefully prior to
Incorrect use may cause fire, electric shock and the unit falling may result in
injury or leakage. Contact our designated Kahn service centre on 0333 222 4016
specialists. The manufacturer shall not assume responsibility for accidents or injury
caused by incorrect use.
This product must not be disposed together with the domestic waste.
This product has to be disposed at an authorised place for recycling
of electrical and electronic appliances.
Kahn Climate Control
ATOM
user handbook
installing and keep it for further reference.

0333 222 4016
2
Cover connecting pipe with
insulation lagging.
Sponge insulation
lagging with a
thickness of 8mm.
Condenser
pipe terminals
See page 6
Installation - LITTLE BOY
2
above 500mm
above 300mm
above 300mm
above 500mm
Above 500mm
TTINUROODNI
O
Attention:
Indoor Unit
Outdoor Unit
Front view
To mount / install the outdoor unit “indoors” the optional
Plenum box MUST be used.
The maximum length of the connecting
pipe (if rubber) is 9m.
The maximum distance between indoor
unit and outdoor unit is 30m if using
copper piping
Please refer to our youtube channel which offers video advice and guidance for installation.
Find us on
... search for Kahn Climate Control or use the QR code

3
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Installation Instructions
Installation of the Indoor Unit
3
1
2
Location of indoor unit
Good ventilation, away from dust, direct rain and direct sunlight.
A
Keep the air inlet and outlet free from any obstructions.
Keep the height distance between the indoor and outdoor unit within 5m.
If mounted on a wall or suspended from the ceiling ensure they are sturdy enough to bear the weight.
.
Location of outdoor unit
Keep at least 1m away from any electrical appliances.
Do not restrict air flow to the outdoor unit.
Mains power feed is to the outdoor unit - NOT the indoor unit.
If locating the outdoor unit indoors the plenum air extraction box must be used.
void locating equipment close to flammable gas sources.
A firm foundation solid enough to bear the weight of the unit and not cause any shaking.
Remove the electrical control
box cover from the control box
See fig 1
See fig 2
indoor unit
cable connects
to outdoor unit
Cable 1
This cable
goes to the
control box
1 2 3 4 1 2 3 45 6 7 8
From control box
Fig 1

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Electrical wiring connections - Hard wire controller
7
W
ARNING:
The electric box cover must be mounted and secured in position, otherwise fire or electrical
shock may occur because of dust or moisture.
Please use the electric circuit diagram attached to the indoor/outdoor units as main
reference whilst installing.
The power wire and signal wire between the indoor/outdoor units must be connected
one by one as per corresponding number on the wiring terminal board.
Note:
If any of the wires are to be replaced or extended be sure to use identical diameter.
Please refer to the wiring diagram located on the reverse of the cover plate
of wiring terminals inside the evaporation unit.
On the outdoor unit, the wiring diagram is fixed to the inside of cover plate (which protects
the wiring terminal block to the right side of the condenser)
R
W
B
**
Indoor unit
Indoor unit Remote controller cable
*Earth (Ground) the remote controller if it has a earth (ground) line.
Red
White
Black
Wired remote
controller
Wired remote controller cable
Interconnecting cale between
indoor and outdoor units
Indoor unit Outdoor unit
Earth
Brown
Blue
Black
Cable 3
This cable goes
to the
outdoor unit
Cable 2.
This cable
goes to the
control box
Fig 2

5
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Removable Panel
1
Electrical Wiring Connections
1 Remove the wiring terminal cover plate (on the side of the outdoor unit), connect mains lead
4 Once completed perform a final check to ensure integrity of cabling between the indoor
and the outdoor unit
2 Loosen the fixing screws on each of the wiring terminals and feed the power communications,
and earth cables through their respective fixing clips before tightening the screws.
Earth wire must be connected firmly.
3 Replace the wiring terminal covering plate and secure firmly with mounting screws.
6
Installation of the Outdoor Unit
Connecting pipe
Fig 3.
Air outlet
L12 3N
Outdoor unit wiring terminal
Interconnecting cale between
indoor and outdoor units
Unscrew and remove the
removable panel
Indoor unit Outdoor unit
Earth
Brown
Blue
Black
(not supplied) to right hand side of terminal block by unscrewing the mounting screws.
Live (Brown)
Cable 3.
Connects to
indoor unit
Cable 3. To mains supply
Neutral (Blue)
Communications (Black)
Neutral (Blue)
Earth
(Yellow/Green)
Live (Brown)
Earth (Yellow/Green)

0333 222 4016
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3
4
Connect both pipes using two adjustable spanners, levering one against the other (see fig 1)
Take cable and rubber pipes to outdoor unit.
Pipe connection - indoor unit
(Fig. 1)
Connecting Pipe
Align the centre of joint in line with that of flare nut and
tighten the nut of connecting pipe with wrench. (Adjust
the torque by the same method of connecting pipe for
indoor unit.)
gas shut-off
valve
liquid shut-off valve
service port
gas connecting
pipe
liquid connecting pipe
valve nuts
service port cap
allen wrench
Make the pipe connection between the indoor and
outdoor unit ensuring a tight connection (finger
tightening initially to avoid risk of cross threading).
Remove both brass end caps from the two valves
on the outdoor unit – this will reveal an allen key
connection on both valves.
Turning anticlockwise – first half unscew the
small liquid port valve, you will hear refrigerant
gas passing through the small pipe – this will
occur for up to 6 seconds.
Repeat the above process for the larger gas valve
port.
Return to fully unscrew small liquid port valve.
Return to fully unscrew large gas port valve.
Replace the brass caps firmly.
You should not hear any further refrigerant
movement once these steps have been completed
(Apply soapy water to the piping joints to ensure no
gas bubbles exist i.e. No leaks should exist).
Instructions for bleeding pre-sealed a/c unit
Connecting
cable
Outdoor unit terminal

7
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8
Do not vent refrigerant into the atmosphere: refrigerant ia a fluorinated greenhouse gas, covered
by Kyoto protocol, with a Global Warming Potential (GWP) = 1900(R410A)/1600(R407C)/1700(R22)
Notice:
If any leak exists, close off allen key valves and re-tighten the leaking joint
PUMP DOWN PROCEDURE / REFRIGERANT RECOVERY PROCEDURE:
DANGER
This part (Choke coil) generates high voltages.
Never touch this part.
SPECIAL INSTALLATION SETTING
PUMP DOWN (Refrigerant collecting operation)
Perform the following procedures to collect the refrigerant
when moving the indoor unit or the outdoor unit.
(1) Press the push-button switch on the circuit board once.
The LED on the circuit board starts flashing
(one second ON/one se-cond OFF).
This indicates the start of PUMP DOWN operation.
When the switch is pressed while the compressor is in operation,
PUMP DOWN operation starts automatically.
When the switch is pressed while the compressor is in stop,
the compressor starts to operate automatically,
and then move on to PUMP DOWN operation.
(2) PUMP DOWN operation continues for about 1 minute.
When PUMP DOWN operation is completed,
the compressor stops automatically.
Then close the 2-way valve and 3-way valve immediately.
(3) Turn the power off.
OUTDOOR UNIT
PUMP DOWN SW

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9
FUNCTION SET TEMP
SET FAN
SET MODE
SET LUX
SET TIME
UNIT OFF
Kahn hardwired controller guide
UNIT ON
NIGHT
DAY
NIGHT
DAY
SET SET
900
UP TO
100
H M L
H M L
NIGHT
DAY
FAN
HEAT
COOL
FAN
HEAT
COOL
0 0 0 0
11-11
Please refer to our youtube channel which offers video advice and guidance for maintenance.
Find us on
... search for Kahn Climate Control or use the QR code