To Connect The Shut-Off Valve; To Connect The Electrical Meters; To Connect The Domestic Hot Water Pump - Daikin Altherma EHVH08SU18CB6W Installer's Reference Manual

7 Installation
# At the indoor unit
2 Insert a screwdriver into the slots underneath the user
interface and carefully separate the faceplate from the
wallplate.
The PCB is mounted in the faceplate of the user interface.
Be careful NOT to damage it.
3 Use the 2 screws in the accessory
bag to fix the wallplate of the user
interface to the sheet metal of the
unit.
Be careful NOT to distort the shape
of the backside of the user interface
by overtightening the mounting
screws.
4 Connect as shown in 4A.
5 Reinstall the faceplate onto the wallplate.
Be careful NOT to pinch the wiring when attaching the
frontplate to the unit.
(a) The main user interface is required for operation, but has to
be ordered separately (mandatory option).
4A From the rear
PCB
1×
a
b
4C From the top
a
b
PCB
1×
b
a Notch this part for the wiring to pass through with nippers
etc.
b Secure the wiring to the front part of the casing using the
wiring retainer and clamp.
Installer reference guide
46
In the room
Fix the wallplate of
the user interface to
the wall.
Connect as shown
in 4A, 4B, 4C or 4D.
4B From the left
PCB
1×
a
b
4D From the top centre
a
b
PCB
1×
b
7.9.10

To connect the shut-off valve

1 Connect the valve control cable to the appropriate terminals as
shown in the illustration below.
NOTICE
Wiring is different for a NC (normal closed) valve and a NO
(normal open) valve.
NO
6 7
5
X2M X2M
X1M
M2S
2 Fix the cable with cable ties to the cable tie mountings.
7.9.11

To connect the electrical meters

INFORMATION
In case of an electrical meter with transistor output, check
the polarity. The positive polarity MUST be connected to
X5M/7 and X5M/9; the negative polarity to X5M/8 and
X5M/10.
1 Connect the electrical meters cable to the appropriate terminals
as shown in the illustration below.
7 8 910
X5M
X2M
S2S S3S
2 Fix the cable with cable ties to the cable tie mountings.
7.9.12

To connect the domestic hot water pump

1 Connect the domestic hot water pump cable to the appropriate
terminals as shown in the illustration below.
X2M
M2P
ERLQ004~008CA + EHVH04+08SU18+26CB6W
NC
5 7
6
X1M
M2S
34 35
M
1~
Daikin Altherma – Low temperature split
4P449978-1B – 2018.07