Table of Contents
Table of Contents
1 About the documentation 2
1.1 About this document.................................................................. 2
2 About the box 2
2.1 Option box ................................................................................. 2
2.1.1 To remove the accessories from the option box......... 2
3 Preparation 3
3.1 Preparing installation site .......................................................... 3
3.1.1 Installation site requirements of the option box........... 3
3.2 Preparing electrical wiring ......................................................... 3
3.2.1 Overview of electrical connections for external and
internal actuators ........................................................ 3
4 Installation 3
4.1 Opening the units ...................................................................... 3
4.1.1 To open the option box ............................................... 3
4.2 Mounting the option box ............................................................ 3
4.2.1 To install the option box .............................................. 3
4.3 Connecting the electrical wiring................................................. 4
4.3.1 To connect the electrical wiring on the option box...... 4
4.3.2 To connect the option box power supply .................... 4
4.3.3 To connect the interconnection cable between option
box and control box..................................................... 4
4.3.4 To connect the electrical meters ................................. 4
4.3.5 To connect the power consumption digital inputs....... 4
4.3.6 To connect the alarm output ....................................... 5
4.3.7 To connect the space cooling/heating ON/OFF
output .......................................................................... 5
4.3.8 To connect the changeover to external heat source... 5
5 Starting up the system 5
▪ Installer reference guide:
▪ Preparation of the installation, technical specifications, good
practices, reference data,…
▪ Format: Digital files on the ROTEX homepage
▪ Addendum book for optional equipment:
▪ Additional info about how to install optional equipment
▪ Format: Paper (in the box of the outdoor unit) + Digital files on
the ROTEX homepage
Latest revisions of the supplied documentation may be available on
the regional ROTEX website or via your dealer.
The original documentation is written in English. All other languages
are translations.
2 About the box
2.1 Option box
NOTICE
▪ Option box RK2CB07CAV3 is an option and can only
be used in combination with outdoor units
RDLQ05+07CAV3 and RBLQ05+07CAV3.
▪ To be able to use the option box, it is required that
optional control box RKCB07CAV3 is part of the
system.
2.1.1 To remove the accessories from the
option box
1 Open the option box.
1 About the documentation
1.1 About this document
Target audience
Authorised installers
Documentation set
This document is part of a documentation set. The complete set
consists of:
▪ General safety precautions:
▪ Safety instructions that you must read before installing
▪ Format: Paper (in the box of the outdoor unit)
▪ Outdoor unit installation manual:
▪ Installation instructions
▪ Format: Paper (in the box of the outdoor unit)
▪ Control box installation manual:
▪ Installation instructions
▪ Format: Paper (in the box of the control box)
▪ Option box installation manual:
▪ Installation instructions
▪ Format: Paper (in the box of the option box)
▪ Backup heater installation manual:
▪ Installation instructions
▪ Format: Paper (in the box of the backup heater)
2 Remove the accessories.
a Connectors for interconnection cable between the option
box and control box RKCB07CAV3.
Installation manual
2
ROTEX HPSU low temperature monobloc option box
RK2CB07CAV3
4P416036-1A – 2016.02
3 Preparation
3 Preparation
3.1 Preparing installation site
3.1.1 Installation site requirements of the
option box
▪ Mind the measurement guidelines:
Maximum distance between the option box and
control box RKCB07CAV3
▪ Mind the following spacing installation guidelines:
▪ The option box is designed to be wall-mounted in indoor locations
only. Make sure the installation surface is a flat and vertical noncombustible wall.
▪ The option box is designed to operate in ambient temperatures
ranging from 5~35°C.
3.2 Preparing electrical wiring
3m
4 Installation
4.1 Opening the units
4.1.1 To open the option box
WARNING
The screws are delivered with toothed lock washers.
ALWAYS use toothed lock washers, also when the screws
need to be replaced. Failure to follow this warning may
result in electric shock.
INFORMATION
Do NOT remove the plugs from the front plate of the option
box.
3.2.1 Overview of electrical connections for
external and internal actuators
Item Description Wires Maximum
Power supply
1 Power supply for option
Interconnection cable
2 Interconnection cable
Optional equipment
3 Remote indoor sensor 2
Field-supplied components
4 Electric meter 2 (per meter)
5 Power consumption
6 Alarm output 2
7 Space cooling/heating
8 Changeover to external
box
to control box
digital inputs
ON/OFF output
heat source
(a) Cable section 2.5mm².
(b) Minimum cable section 0.75mm².
NOTICE
More technical specifications of the different connections
are indicated on the inside of the option box.
2+GND
3 (max 3m)
2 (per input
signal)
2
2
running
current
(a)
(b)
(b)
(b)
(b)
(b)
(b)
(b)
4.2 Mounting the option box
4.2.1 To install the option box
1 Remove the front plate.
2 Hold the back plate against the wall and mark the fixation points
(2 on the top and 2 at the bottom).
NOTICE
Make sure that the marks (2 by 2) are completely level and
that their dimensions correspond to the figure below.
3 Drill 4 holes and install 4 plugs (suitable for M5).
4 Put the screws in the top plugs and hang the box on the
screws.
5 Put the screws in the bottom plugs.
6 Fix the 4 screws firmly.
Installation manual
3
RK2CB07CAV3
ROTEX HPSU low temperature monobloc option box
4P416036-1A – 2016.02