7 Installation
Installer reference guide
43
RRLQ004~008CA + RHBH/X04+08CB
ROTEX HPSU low temperature Bi‑bloc
4P384979-1C – 2017.04
The procedure differs slightly depending on where you install the
user interface.
#
At the indoor unit
In the room
1
Connect the user interface cable to the indoor unit.
Fix the cable with cable ties to the cable tie mountings.
X2M
X5M
A2P
A2P
2
1
a
b
a
Main user interface
(a)
b
Optional user interface
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.
Fix the wallplate of
the user interface to
the wall.
4
Connect as shown in 4A.
Connect as shown
in 4A, 4B, 4C or 4D.
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
b
a
PCB
1×
4B From the left
a
PCB
b
1×
4C From the top
a
b
PCB
b
1×
4D From the top centre
a
PCB
b
b
1×
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.
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.
X1M
X2M
5
6
7
M2S
X1M
X2M
5
67
M2S
NO
NC
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.
