E(D/B)(H/L)Q011~016BB
Unit for air to water heat pump system
4PW67904-1 – 01.2011
Installation manual
28
Installation of the digital controller
The unit is equipped with a digital controller offering a user-friendly
way to set up, use and maintain the unit. Before operating the
controller, follow this installation procedure.
Wiring specifications
Procedure
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.
10. S
TART
-
UP
AND
CONFIGURATION
The unit should be configured by the installer to match the installation
environment (outdoor climate, installed options, etc.) and user
expertise.
10.1. DIP switch settings overview
DIP switch SS2 is located on the switch box PCB (see
"Switch box
main components (door 2)" on page 11
) 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, delivered in a kit, 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.
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
).
1
P1
P2
1
1
6
2
3
4
5
P1
P2
16a
16
16a
16
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.
DIP
switch
SS2
Description
ON
OFF
1
Not applicable for installer
—
(Default)
2
Domestic hot water tank
installation (see
"10.4. Domestic hot water
tank installation
configuration" on page 30
)
Installed
Not installed
(Default)
3
Room thermostat
connection(see
"10.2. Room thermostat
installation configuration"
on page 29
)
Room thermostat
connected
No room
thermostat
connected
(Default)
4
This setting
(a)
decides the
operation mode when
there is a simultaneous
demand for more space
heating/cooling and
domestic water heating.
(a) Only applicable in case DIP switch 2=ON.
Heating/cooling
priority
Priority to highest
demand side
(b)
(b) Heating/cooling or domestic water heating mode can be restricted by schedule
timer and/or field settings (4, 5, 8).
1
4
3
2
1
ON
OFF
