Introduction; General Information; Scope Of This Manual; Operating The Unit - Rotex RKHBH008BB3V3 Betriebsanleitung

3. I
NTRODUCTION

3.1. General information

Thank you for purchasing this indoor unit.
The unit is the indoor part of the air to water RRLQ heat pumps. This
unit is designed for wall mounted indoor installation. The unit can be
combined with Rotex fan coil units, floor heating applications, low
temperature radiators and
applications.
Heating/cooling units and heating only units
The unit range consists of two main versions: a heating/cooling
(RKHBX) version and a heating only (RKHBH) version.
Both versions are delivered with an integrated backup heater for
additional heating capacity during low outdoor temperatures. The
backup heater also serves as a backup in case of malfunctioning of
the outdoor unit. The backup heater models are available for a
heating capacity of 3, 6 and 9 kW, and – depending on the heating
capacity – for two different power supply specifications.
Indoor unit model Backup heater capacity
RKHB*008BB3V3
RKHB*008BB6V3
RKHB*008BB6WN
RKHB*008BB9WN
Domestic hot water tank (option)
An optional domestic hot water tank can be connected to the indoor
unit. The domestic hot water tank is available in 2 types:
■
tank with built-in electrical booster heater (RKHW*) in 1 size
only: 300 litre,
■
tank without electrical booster heater (RKHTS) in 2 different
sizes: 200 and 260 litre.
Room thermostat kit (option)
An optional room thermostat RKRTW, RKRTWA, or RKRTR can be
connected to the indoor unit. Refer to the operation manual of the
room thermostat for more information.

3.2. Scope of this manual

This manual has been prepared to ensure adequate operation of the
unit.
INFORMATION
The installation of the indoor unit is described in the indoor
unit installation manual.
RKHBH/X008BB
Indoor unit and options for air to water heat pump system
4PW62575-1 – 10.2010
Rotex domestic water heating
Backup heater
nominal voltage
3 kW 1x 230 V
6 kW 1x 230 V
6 kW 3x 400 V
9 kW 3x 400 V
4. O
PERATING THE UNIT

4.1. Introduction

The heat pump system is designed to provide you a comfortable
indoor climate for many years at low energy consumption.
To get the most comfort with the lowest energy consumption out of
your system, it is very important to observe the items listed below.
Defining possible schedule timer actions for each day and filling out
the form at the very end of this manual can help you minimize the
energy consumption. Ask your installer for support if required.
■
Make sure the heat pump system works at the lowest possible
hot water temperature required to heat your house.
To optimize this, make sure the weather dependent set point is
used and configured to match the installation environment.
Refer to "5. Field settings" on page 13.
■
It is advised to install the room thermostat connected to the
indoor unit. This will prevent excessive space heating and will
stop the outdoor unit and the indoor circulation pump when the
room temperature is above the thermostat set point.
■
Next recommendations only apply to installations with an
optional domestic hot water tank.
■ Make sure the domestic hot water is only heated up to the
domestic hot water temperature you require.
Start with a low domestic hot water temperature set point
(e.g. 45°C), and only increase if you feel that the domestic
hot water supply temperature is not sufficient.
■ Only for tank with built-in electrical booster heater (RKHW*):
Make sure the domestic water heating by booster heater only
start 1 to 2 hours before you expect domestic hot water
usage.
In case you only need a lot of domestic hot water in the
evening or in the morning, only allow domestic water heating
by booster heater during early morning and early evening.
Also keep hours with low electricity cost tariffs in mind.
To do this, program both the domestic water heating and
booster heating schedule timer. Refer to Programming in
chapter "4.7. Programming and consulting the schedule
timer" on page 9.
■ If the domestic hot water is not used for two weeks or more, a
quantity of hydrogen gas which is highly flammable may
accumulate in the domestic hot water tank. To dissipate this
gas safely, it is recommended that a hot tap be turned on for
several minutes at a sink, basin, or bath, but not at a
dishwasher, clothes washer or other appliance. During this
procedure there must be no smoking, open flame or any
electrical appliance operating nearby. If hydrogen is
discharged through the tap, it will probably make a sound as
of air escaping.
Operation manual
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