7 Installation
Installer reference guide
29
RRLQ004~008CA + RHBH/X04+08CB
ROTEX HPSU low temperature Bi‑bloc
4P384979-1C – 2017.04
Backup heater
type
Power supply
Required number of
conductors
*3V
1× 230 V
2+GND
*9W
1× 230 V
2+GND + 2 bridges
3× 230 V
3+GND + 1 bridge
3× 400 V
4+GND
7
Installation
7.1
Overview: Installation
This chapter describes what you have to do and know on-site to
install the system.
Typical workflow
Installation typically consists of the following stages:
1
Mounting the outdoor unit.
2
Mounting the indoor unit.
3
Connecting the refrigerant piping.
4
Checking the refrigerant piping.
5
Charging refrigerant.
6
Connecting the water piping.
7
Connecting the electrical wiring.
8
Finishing the outdoor installation.
9
Finishing the indoor installation.
INFORMATION
Depending on the units and/or the installation conditions, it
might be necessary to connect electrical wiring before you
can charge refrigerant.
7.2
Opening the units
7.2.1
About opening the units
At certain times, you have to open the unit.
Example:
▪ When connecting the refrigerant piping
▪ When connecting the electrical wiring
▪ When maintaining or servicing the unit
DANGER: RISK OF ELECTROCUTION
Do NOT leave the unit unattended when the service cover
is removed.
7.2.2
To open the outdoor unit
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
1×
1
2
2
7.2.3
To open the indoor unit
1
Loosen and remove the 2 screws that fix the front panel.
2×
2
Tilt the front panel towards you and remove the front panel.
7.2.4
To open the switch box cover of the
indoor unit
4×
7.3
Mounting the outdoor unit
7.3.1
About mounting the outdoor unit
When
You have to mount the outdoor and indoor unit before you can
connect the refrigerant and water piping.
Typical workflow
Mounting the outdoor unit typically consists of the following stages:
1
Providing the installation structure.
2
Installing the outdoor unit.
3
Providing drainage.
4
Protecting the unit against snow and wind by installing a snow
cover and baffle plates. See "Preparing installation site" in
"6 Preparation" on page 22
.
7.3.2
Precautions when mounting the outdoor
unit
INFORMATION
Also read the precautions and requirements in the
following chapters:
▪ General safety precautions
▪ Preparation
