Installation manual
23
EKHBH/X008BB
Indoor unit for air to water heat pump system
4PW62570-1A – 01.2011
7.4.
Relocation of the digital controller
The digital controller is from factory located on the indoor unit. (See
"5.2. Main components" on page 11
for actual position). If required,
the digital controller can be repositioned.
Be aware that only 1 digital controller can be connected to the indoor
unit.
Wiring specifications
Mounting
1
Remove the front part of the digital controller.
Insert a slotted screwdriver into the slots (1)
in the rear part of the digital controller, and
remove the front part of the digital
controller.
2
Fasten the digital controller on a flat
surface.
3
Wire the unit.
1
Unit
2
Rear part of the digital controller
3
Front part of the digital controller
4
Wired from the rear
5
Wired from the top
6
Notch the part for the wiring to pass through with nippers,
etc.
Connect the terminals on top of the front part of the digital
controller and the terminals inside the unit (P1 to 16, P2 to 16a).
4
Reattach the upper part of the digital controller.
First begin fitting from the clips at the
bottom.
8.
S
TART
-
UP
AND
CONFIGURATION
The indoor unit should be configured by the installer to match the
installation environment (outdoor climate, installed options, etc.) and
user expertise.
8.1.
DIP switch settings overview
DIP switch SS2 is located on the switch box PCB (see
box main components" on page 12
) and allows configuration of
domestic hot water tank installation, room thermostat connection and
pump operation.
Wire specification
Value
Type
2 wire
Section
0.75-1.25 mm
2
Maximum length
500 m
NOTICE
The wiring for connection is not included.
NOTICE
The digital controller has to be mounted indoors.
NOTICE
Be careful not to distort the shape of the lower part of the
digital controller by over tightening the mounting screws.
1
P1
P2
1
1
6
2
3
4
5
P1
P2
16a
16
16a
16
NOTICE
■
When wiring, run the wiring away from the power
supply wiring in order to avoid receiving electric
noise (external noise).
■
Peel the shield for the part that
has to pass through the inside of
the digital controller case (
l
).
CAUTION
Be careful not to pinch the wiring when attaching.
CAUTION
It is important that
all
information in this chapter is read
sequentially by the installer and that the system is
configured as applicable.
DANGER: ELECTRIC SHOCK
See
"2. General safety precautions" on page 2
WARNING
Switch off the power supply before opening the switch box
service panel and making any changes to the DIP switch
settings.
1
4
3
2
1
ON
OFF
