5 Application guidelines
Installer reference guide
10
RRLQ004~008CA + RHBH/X04+08CB
ROTEX HPSU low temperature Bi‑bloc
4P384979-1C – 2017.04
▪ RKRUCBL6 contains following languages: English, Croatian,
Hungarian, Estonian.
▪ RKRUCBL7 contains following languages: English, German,
Russian, Danish.
Languages on the user interface can be uploaded by PC software or
copied from an user interface to the other.
For installation instructions, see
"7.9.9 To connect the user
interface" on page 42
.
Room thermostat (RKRTWA, RKRTR1, RTRNETA)
You can connect an optional room thermostat to the indoor unit. This
thermostat can either be wired (RKRTWA) or wireless (RKRTR1 and
RTRNETA). Thermostat RTRNETA can only be used in heating-only
systems.
For installation instructions, see the installation manual of the room
thermostat and addendum book for optional equipment.
Remote sensor for wireless thermostat (EKRTETS)
You can use a wireless indoor temperature sensor (EKRTETS) only
in combination with the wireless thermostat (RKRTR1).
For installation intructions, see the installation manual of the room
thermostat and addendum book for optional equipment.
Digital I/O PCB (EKRP1HB)
The digital I/O PCB is required to provide following signals:
▪ Alarm output
▪ Space heating/cooling On/OFF output
▪ Changeover to external heat source
For installation instructions, see the installation manual of the digital
I/O PCB and addendum book for optional equipment.
Demand PCB (EKRP1AHTA)
To enable the power saving consumption control by digital inputs
you must install the demand PCB.
For installation instructions, see the installation manual of the
demand PCB and addendum book for optional equipment.
Remote outdoor sensor (EKRSCA1)
By default the sensor inside the outdoor unit will be used to measure
the outdoor temperature.
As an option the remote outdoor sensor can be installed to measure
the outdoor temperature on another location (e.g. to avoid direct
sunlight) to have an improved system behaviour.
For installation instructions, see the installation manual of the remote
outdoor sensor.
PC configurator (EKPCCAB)
The PC cable makes a connection between the switch box of the
indoor unit and a PC. It gives the possibility to upload different
language files to the user interface and indoor parameters to the
indoor unit. For the available language files, contact your local
dealer.
The software and corresponding operating instructions are available
on the ROTEX homepage.
For installation instructions, see the installation manual of the PC
cable and
"8 Configuration" on page 45
.
Heat pump convector (RFWXV)
For providing space heating/cooling, it is possible to use heat pump
convectors (RFWXV).
For installation instructions, refer to the installation manual of the
heat pump convectors, and the addendum book for optional
equipment.
Drain pan kit (EKHBDPCA2)
The drain pan is required to drain accumulated condensation from
the indoor unit. It is required during low temperature cooling
operation of the indoor unit and when the leaving water temperature
is <18°C.
For installation instructions, see the installation manual of the drain
pan kit.
Domestic hot water tank
The domestic hot water tank can be connected to the indoor unit for
providing domestic hot water.
LAN adapter for smartphone c Smart Grid applications
(BRP069A61)
You can install this LAN adapter to:
▪ Control the system via a smartphone app.
▪ Use the system in various Smart Grid applications.
For installation instructions, see the installation manual of the LAN
adapter.
LAN adapter for smartphone control (BRP069A62)
You can install this LAN adapter to control the system via a
smartphone app.
For installation instructions, see the installation manual of the LAN
adapter.
4.3.3
Possible combinations of indoor unit and outdoor unit
Indoor unit
Outdoor unit
RRLQ004CAV3
RRLQ006CAV3
RRLQ008CAV3
RHBH04CB3V
O
—
—
RHBX04CB3V
O
—
—
RHBH08CB3V
—
O
O
RHBX08CB3V
—
O
O
RHBH08CB9W
—
O
O
RHBX08CB9W
—
O
O
5
Application guidelines
5.1
Overview: Application guidelines
The purpose of the application guidelines is to give a glance of the
possibilities of the ROTEX heat pump system.
