WIRING
CAUTION
IMPORTANT!
Machine commissioning or the first start up must be carried
out by skilled personnel qualified to work on this type of
product.
DANGER!
Before starting up,make sure that the installation and
electrical connections have been carried out in accordance
with the instructions in this manual. Also make sure that there
are no unauthorised persons in the vicinity of the machine
during these operations.
3.2.3 STARTUP INSTRUCTIONS
9
I&O manual
Check that the voltage and the frequency of the electrical supply
correspond to 220-240V single phase at 50Hz;that the available
power is suffcient for the running the equipment; and that the
supply cables are of adequate section for the maximum current
which will be required.
Make sure that the electrical supply system complies with
current national safety regulations.
Electrical connections must be made in accordance with the
wiring diagrams supplied with the machine.For connection to the
electrical supply network,use double-insulated flexible
cable,twin pole + earth,section 1.5mm
2
,type H05RN-F.
Pass the supply cable through the slot beside the air filter.Use
the cable clamp provided on the inner side of the panel to
secure the supply cable and the connecting cables,and strip
only the length of cable needed to go into the connector block.
In the event that the unit is mounted on a metal surface,earth
connections must be made in compliance with local
regulations.If the optional extra electric heating element is
fitted,a separate power supply must be provided.Use double-
insulated flexible cable,twin pole + earth,section 2.5mm
2
,type
H05RN-F.
The installation of room and pipe temperature sensors
Outside temperature controller ( Fig.3-13)
Inside temperature controller ( Fig.3-12)
1. Install the room temperature sensor.
1) Dismount casing from equipment.
2) Fixing install the room temperature sensor (length: 600mm)
at air return orifice by cable clips and lead the sensor wire
through out the wire hole. (showed as the Fig.3-12)
3) Fix the room temperature sensor cable and connect it to
temperature controller.
1. Install the room temperature sensor
1) Connect the room temperature sensor (length: 150mm) to the
wire of temperature controller directly (Note: Pipe temperature
sensor be connected to the black wire of Temperature
controller, while Room temperature sensor be connected to
white wire of temperature controller. )
2. Install the pipe temperature sensor
1) Dismount casing from equipment.
2) Lead the pipe temperature sensor’s wire through out from
indoor unit and connecting to temperature controller via a long
connecting wire.
3) Mount up the casing.
Temperature controller (Wall-mounted)
Pipe temperature sensor
Room temperature
sensor(Length: 150mm)
Pipe temperature sensor’s
connected wire
Fig.3-11
Fig.3-13
T2
WHITE
WHITE
RED
BLACK
ORANGE
BLUE
INDOOR
FAN
CAP
YELLOW
Y/G
RED
BLACK
BROWN
YELLOW
WHITE
BLUE
T
O CONTROLLER
TO POWER
TO VALVE
XT1
L
N
SH HIG MID LOWTV3a
2. Install the pipe temperature sensor
1) Connect the pipe temperature sensor to the Temperature
Controller (Note: Pipe temperature sensor be connected to
the black wire of Temperature controller, while Room temperature
sensor be connected to white wire of temperature controller. )
2) Mount up the casing.
Pipe temperature sensor
Room temperature sensor
(Length: 600mm)
Fig.3-12
( Which together with room temperature
sensor’s wire goes out from
the same side in the unit.)