12
The wire diameter and continuous length is under the
condition that the voltage vibration is within 2%. If the
continuous length is exceed showing value, choose the
wire diameter follow relevant regulation.
NOTE
Indoor Power Supply
Circuit Breaker
Manual switch
Wire Distribution Box
Indoor Unit
CAUTION
1. Refrigerant piping system, indoor unit-indoor unit connection
signal wires and indoor unit-outdoor unit connection signal wire
are in the same system.
2. When power cord is parallel with signal wire, please put them
into separate wire distribution pipes, and leave a proper distance.
(Reference distance: It is 300mm when current capacity of
power cord is less than 10A, or 500mm when 50A).
Please use shield wire as indoor unit/outdoor unit signal wire.
Indoor/Outdoor unit signal wire wiring
Outdoor Unit
Close end of the connection shielded wire
Indoor/Outdoor
Unit Signal Wire
(open)
6. TEST RUNNING
Operate according to "gist for test running" on the electric control box
cover.
Test running can not start until the outdoor unit has been
connected to the power for 12hr.
Test running can not start until all the valves are affirmed
open.
Never make the forced running. (Or the protector sits back,
danger will occur.)
CAUTION
Fig. 5-6
Single phase indoor unit
Wire controller
The reserved wire control
function is indicated in broken
line table, users can purchase
the wire controller when
necessary.
In broken line table, users can purchase the wire
controller when necessary
.
To wire controller
Display
board
WHITE
BLUE
BLACK
P Q
X Y E
YELLOW
GRA
Y
To Outdoor
COMM.BUS
To Central Control
Monitor (CCM)
COMM. BUS
Power Supply
Y/G
N
L
Please use 3-core shielded wire, and
connect the shielded layer to Grounding
XT1
XT3
Fig. 5-5
BLACK
E
Indoor unit power supply wiring
Indoor/Outdoor unit signal wire is low voltage circuit. Do not
let it touch the high voltage power wire and put it to gather
with power cord in the same wire distribution pipe.
1. Signal wire is 3-core, polarized wire. Use 3-core shield wire to
prevent interference. The grounding method now is grounding
the closed end of the shield wire and opening (insulating) at the
end. Shield is to be grounded.
2. The control between outdoor unit and indoor unit is BUS type.
Addresses is set on field during the installation.
CAUTION
Fig. 5-7
The method of fixing the power cord and signal wire:
1.The method of fixing the power cord :
28kBtu/h 36/42kBtu/h 48/56kBtu/h
2.The method of fixing the signal wire :
28kBtu/h 36/42kBtu/h 48/56kBtu/h
PQE
XYE
The fixed mode of signal wire 8kw and 14/16kw is shown in the figure.
The signal wire goes through the wire clamp, and the cable is tightly
tied to the clamp with a belt to prevent the signal wire from moving up
and down.