Kaysun KCOF-22 DN2.4, Installation Manual

Page: 9 / 16

8
Air Purging
● Use a vacuum pump, to vacuum from the gas side refrigerant
adding mouth of the outdoor unit.
● Don’t use the refrigerant of the outdoor unit to do the vacuum.
(A certain volume of refrigerant had been added into the
outdoor unit in factory.)
Open/Close the valves
Open/Close the spools or the valves of outdoor unit with a
f5mm hexagon spanner.
Leakage Test
Test if there is any leakage on the connections of the piping
with soap water.
Heat Insulation
● Heat insulation for the gas and liquid pipe separately.
● Heat insulation should be fully and carefully done, because the
liquid side pipe and gas side pipe are easy to condense water
due to low temperature when cooling.
● Heat proof above 120°C material should be used at the gas
side pipe.
● The indoor unit c onnection parts shoul d be no-gap
heat-insulated with the attached heat insulation materials.
Wrap to the foot of the piping
Fig.8-4
9. WIRING
Attaching wiring
●
The air conditioner should use separate power supply with
rated voltage.
●
The external power supply to the air conditioner should have
ground wiring, which is linked to the ground wiring of the indoor
and outdoor unit.
●
The wiring work should be done by qualified persons according
to circuit drawing.
an all-pole disconnection device which has at least 3mm separa-
●
tion distance in all pole and a residual current device(RCD)with
the rating of above 10mA shall be incorporated in the fixed
wiring according to the national rule.
Be sure to locate the power wiring and the signal wring well to
avoid cross-disturbance and their contact with connecting pipe
or stop value body.
The wiring attached to this air conditioner is 10m long. Be sure
to prolong it with wiring of the same type and proper length
●
if necessary. Generally, do not twist two wiring together unless
the joint is soldered well and covered with insulator tape.
●
Do not turn on the power until you have checked carefully after
wiring.
Indoor unit electric wiring figure
●
The air conditioner should use separate power supply with
rated voltage.
●
The external power supply to the air conditioner should have
ground wiring, which is linked to the ground wiring of the indoor
and outdoor unit.
● The wiring work should be done by qualified persons according
to circuit drawing.
PMV
CN25
T2B T2
T1
CN14
CN7
CN6
CN21
CN12
CN22
GM
CN4
Red
Brown
FM
White(Grey)
White
Wiring panel
CN3
Caution! For wiring
convenience, two
communicative terminals
can be pulled out from
wiring plate.
CN8
main control panel
ENC1 SW6 SW5 SW2 SW1
CN11
CN16
CN1
CN1
CN10 CN15 CN20 CN5 CN23
TR
DM
To panel
control/
display
box
Connect the
outer network
module, short
connect if no
CS
this module.
AC 208-230V 60Hz
AC 220-240V 50Hz
To centralized
controller
communication
X Y E To outdoor unit
communication
P Q E
Fig.9-1(22-36 model)
XP3
X
S3
CN
9
CN1
7
J2 J1
XP1
XS
1
XP2
X
S2
CN
1
9
CN
1
8
CN
2
CN
1
3
CN3
L
N
X
Y
E
P
Q
E
●
Code Name
FM Fan motor
GM Swinging motor
DM Water drainage pump
CS Water level sensor
PMV Electronic expansion valve
T1 Indoor temp. sensor
T2 Mid-pipe temp. sensor of evaporator
T2B Outlet temp. sensor of evaporator
XP1-3 Butt connection socket
XS1-3 Butt connection socket
TR Power transformer