Operating and
installation instructions
Read the instructions prior to performing any task!
REMKO heater for anti-freeze protection
Heater for anti-freeze protection for heat pumps
0345-2023-06 Edition 1, en_GB
of series LWM and SQW
Translation of the original
Read these operating instructions carefully before commis-
sioning / using this device!
These instructions are an integral part of the system and must
always be kept near or on the device.
Subject to modifications; No liability accepted for errors or mis-
prints!
Table of contents
1 Safety and usage instructions............................................................................................................. 4
1.1 General safety notes....................................................................................................................... 4
1.2 Identification of notes...................................................................................................................... 4
1.3 Personnel qualifications.................................................................................................................. 4
1.4 Dangers of failure to observe the safety notes................................................................................ 4
1.5 Safety-conscious working............................................................................................................... 4
1.6 Safety instructions for the operator................................................................................................. 5
1.7 Safety notes for installation, maintenance and inspection.............................................................. 5
1.8 Unauthorised modification and changes......................................................................................... 5
1.9 Intended use................................................................................................................................... 5
1.10 Warranty........................................................................................................................................ 5
1.11 Transportation and packaging....................................................................................................... 6
1.12 Environmental protection and recycling........................................................................................ 6
2 Technical data........................................................................................................................................ 7
2.1 Unit data ......................................................................................................................................... 7
2.2 Unit dimensions .............................................................................................................................. 8
2.3 Heating capacity characteristic curve ............................................................................................. 8
3 Unit description..................................................................................................................................... 9
4 Assembly and installation.................................................................................................................... 9
4.1 Assembly......................................................................................................................................... 9
4.2 Electrical wiring............................................................................................................................. 10
5 Technical documentation online........................................................................................................ 11
5.1 Declaration of Conformity ............................................................................................................. 11
6 Index..................................................................................................................................................... 12
3
1 Safety and
usage instructions
1.1 General safety notes
Carefully read the operating manual before com-
missioning the units for the first time. It contains
useful tips and notes such as hazard warnings to
prevent personal injury and material damage.
Failure to follow the directions in this manual not
only presents a danger to people, the environment
and the system itself, but will void any claims for
liability.
Keep this operating manual and the refrigerant
data sheet near to the units.
1.2 Identification of notes
This section provides an overview of all important
safety aspects for proper protection of people and
safe and fault-free operation.The instructions and
safety notes contained within this manual must be
observed in order to prevent accidents, personal
injury and material damage.
Notes attached directly to the units must be
observed in their entirety and be kept in a fully
legible condition.
Safety notes in this manual are indicated by sym-
bols. Safety notes are introduced with signal words
which help to highlight the magnitude of the danger
in question.
DANGER!
Contact with live parts poses an immediate
danger of death due to electric shock. Damage
to the insulation or individual components may
pose a danger of death.
DANGER!
This combination of symbol and signal word
warns of a situation in which there is immediate
danger, which if not avoided may be fatal or
cause serious injury.
WARNING!
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may be fatal or cause
serious injury.
CAUTION!
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may cause injury or mate-
rial and environmental damage.
NOTICE!
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may cause material and
environmental damage.
This symbol highlights useful tips and recom-
mendations as well as information for efficient
and fault-free operation.
1.3 Personnel qualifications
Personnel responsible for commissioning, opera-
tion, maintenance, inspection and installation must
be able to demonstrate that they hold a qualifica-
tion which proves their ability to undertake the
work.
1.4 Dangers of failure to observe
the safety notes
Failure to observe the safety notes may pose a risk
to people, the environment and the units. Failure to
observe the safety notes may void any claims for
damages.
In particular, failure to observe the safety notes
may pose the following risks:
nThe failure of important unit functions.
nThe failure of prescribed methods of mainte-
nance and repair.
nDanger to people on account of electrical and
mechanical effects.
1.5 Safety-conscious working
The safety notes contained in this manual, the
existing national regulations concerning accident
prevention as well as any internal company
working, operating and safety regulations must be
observed.
REMKO heater for anti-freeze protection
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1.6 Safety instructions for the oper-
ator
The operational safety of the units and compo-
nents is only assured providing they are used as
intended and in a fully assembled state.
nThe units and components may only be set up,
installed and maintained by qualified per-
sonnel.
nProtective covers (grills) over moving parts
must not be removed from units that are in
operation.
nDo not operate units or components with
obvious defects or signs of damage.
nContact with equipment parts or components
can lead to burns or injury.
nThe units and components must not be
exposed to any mechanical load, extreme
levels of humidity or extreme temperatures.
nAll housing parts and unit openings, e.g. air
inlets and outlets, must be free from foreign
objects, fluids or gases.
nThe units must be inspected by a service tech-
nician to ensure that they are safe to use and
fully functional at least once yearly.
1.7 Safety notes for
installation, maintenance and
inspection
nAppropriate hazard prevention measures must
be taken to prevent risks to people when per-
forming installation, repair, maintenance or
cleaning work on the units.
nThe setup, connection and operation of the
units and its components must be undertaken
in accordance with the usage and operating
conditions stipulated in this manual and comply
with all applicable regional regulations.
nThe electrical power supply should be adapted
to the requirements of the units.
nUnits may only be mounted at the points pro-
vided for this purpose at the factory.
nObserve the minimum clearances.
nThe units and components must be kept at an
adequate distance from flammable, explosive,
combustible, abrasive and dirty areas or
atmospheres.
nSafety devices may not be modified or
bypassed.
1.8 Unauthorised modification
and changes
Modifications or changes to units and components
are not permitted and may cause malfunctions.
Safety devices may not be modified or bypassed.
Original replacement parts and accessories
authorised by the manufactured ensure safety. The
use of other parts may invalidate liability for
resulting consequences.
1.9 Intended use
The heater for anti-freeze protection is used to
control the temperature of the interior space of the
hydraulic module. This ensures that in the event of
a fault, the last step in the freezing of the medium
and thus defects due to frost can be prevented. A
temperature of >+3 °C is established through recir-
culated air operation. It is essential that a separate
UPS is used for the power supply.
Any different or additional use is a non-intended
use. The manufacturer/supplier assumes no lia-
bility for damages arising from non-intended use.
The user bears the sole risk in such cases.
Intended use also includes working in accordance
with the operating and installation instructions and
complying with the maintenance requirements.
The threshold values specified in the technical
data must not be exceeded.
1.10 Warranty
For warranty claims to be considered, it is essential
that the ordering party or its representative com-
plete and return the "certificate of warranty" to
REMKO GmbH & Co. KG at the time when the
units are purchased and commissioned.
The warranty conditions are detailed in the "Gen-
eral business and delivery conditions". Further-
more, only the parties to a contract can conclude
special agreements beyond these conditions. In
this case, contact your contractual partner in the
first instance.
5
1.11 Transportation and
packaging
The units are shipped in sturdy transport pack-
aging or within the heat pump housing. Immedi-
ately check the units on delivery and make a note
of any damage or missing parts on the delivery
note. Inform the forwarding agent and contractual
partner. Claims under guarantee made at a later
date will not be accepted.
WARNING!
Plastic films and bags etc. are dangerous
toys for children!
Why:
- Leave packaging material are not around.
- Packaging material may not be accessible to
children!
1.12 Environmental protection and
recycling
Disposing of packaging
All products are packed for transport in environ-
mentally friendly materials. Make a valuable contri-
bution to reducing waste and sustaining raw mate-
rials. Only dispose of packaging at approved
collection points.
Disposing of the units and their components
For the manufacture of the units and components,
only recyclable materials have been used. Help
protect the environment by ensuring that the units
or components (for example batteries) are not dis-
posed of in household waste, but only in accord-
ance with local regulations and in an environmen-
tally safe manner, e.g. using authorised disposal
and recycling specialists or council collection
points.
REMKO heater for anti-freeze protection
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2 Technical data
2.1 Unit data
Series Heater for anti-freeze protection
Operating voltage V / Hz AC 230V / 50/60Hz
Max. switch-on current A 15.0
Recom. Pre-fuse T (slow-blow) A 16.0
Switch-off temperature 2) °C / °F +5 °C / +41 °F
Switch-on temperature 2) °C / °F +5 °C / +41 °F
Surface temperature 500 W: max. +65 °C (+149 °F) in each case excepting top
grille surface at +20 °C (+68 °F) Ambient temperature
Temperature monitor Overheating protection in the event of a fan failure with
automatic resetting
Axial fan, ball-bearing mounted Air volume, free-blowing: 45 m3/h (AC 230 V), service life
40,000 h at +40 °C (+104 °F)
Single wire connection 2 x 0.5 - 2.5 mm2
Finely-stranded connection With wire end ferrules without plastic collar max. 1.0 mm2,
with pin cable lug max. 1.5 mm2
Housing Plastic per UL94 V-0, black
Fastening Screw lugs (Ø 5.5 mm), tightening torque 2 Nm max., use
washers
Installation orientation Air flow direction, vertical (air outlet at top) and horizontal
Dimensions mm 87.7 x 142.1
Weight kg 0.5
Operating/storage temperature °C / °F -40 to +70 °C (-40 to +158 °F) /
-20 to +40 °C (-5 to +105 °F)
Operating/storage humidity % rH Max. 90 % rH (non-condensing)
Enclosure class / protection type IP20 / II (protective insulation)
Approvals VDE, UL File No. E150057, EAC
1) at +20 °C (+68 °F) ambient temperature
2) Recommended temperature (Tolerance ±5 K)
We reserve the right to modify the dimensions and design as part of the ongoing technical development
process.
7
2.2 Unit dimensions
o 5,5
35
o 5,5
26,5
129,5
142,1
6
35
o 5,5
26,5
87,7
Fig. 1: Dimensions (all measurements in mm)
We reserve the right to modify the dimensions and design as part of the ongoing technical development
process.
2.3 Heating capacity characteristic curve
A
B
[W]
[°C]
1600
10-40 70
1400
1200
1000
800
600
400
200
0
Fig. 2: Heating capacity
A: Heating capacity B: Temperature
REMKO heater for anti-freeze protection
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3 Unit description
The heater for anti-freeze protection is used to
control the temperature of the interior space of the
hydraulic unit. This ensures that in the event of a
fault, the last step in the freezing of the medium
and thus defects due to frost can be prevented. A
temperature of >+3 °C is established through recir-
culated air operation. It is essential that a separate
UPS is used for the power supply.
The heater for anti-freeze protection is distin-
guished by a touch-safe plastic housing, small size
and dynamic heating. The heater for anti-freeze
protection is equipped with a fixed, set thermostat
and quick-connection terminals.
Connection is via external terminals. The heater for
anti-freeze protection is mounted by means of
screw lugs.
1
2
Fig. 3: Unit description
1: Scale settings
Recommended temperature = +5 °C
2: Connection terminals
4 Assembly
and installation
4.1 Assembly
The heater for anti-freeze protection is installed in
the unit at the factory when ordered with a heat
pump. If the heater for anti-freeze protection is to
be mounted subsequently to a REMKO LWM or
SQW heat pump, a top-hat/mounting rail with a
length of 120 mm, as well as two M4 x 12 mm
screws are required for mounting. The fastening
points for mounting are defined by the already
present threaded sleeves (see figure below).
nMount the top-hat-mounting rail to the threaded
sleeves present using two M4 x 120 mm
screws.
nThen mount the aluminium rail included in the
scope of delivery to the back of the heater for
anti-freeze protection.
9
nInstall the heater for anti-freeze protection into
the unit after mounting the support rail. The
electrical wiring should be done separately and
fused in the fuse box individually with a circuit
breaker.
4.2 Electrical wiring
Connection example
21
E1
M1
1~
B1
X1 L1 L N
2
PE
L
N
E1
M1
1~
B1
X1 L1 L N
3
PE
L
N
Fig. 4: Connection example
1: Default
2: Option 1
B1: Operating thermostat
E1: Resistance heater
M1: Fan
X1: Terminal contact
Phase L and L1 must have the same phase
length.
REMKO heater for anti-freeze protection
10
5 Technical documentation online
5.1 Declaration of Conformity
In order to keep the Declaration of Conformity of the units up to date at all times, these are available in digital
form on our website.
The following QR code takes you to the input field on our website.
Alternatively, the following address can also be entered directly into your web browser:
www.remko.de\ce-konformitaetserklaerung
In both cases, you are taken to the following search screen in which the unit name can then be entered.
If you wish to have the Declaration of Conformity in another language, use the "Sprache" selection window to
select this accordingly.
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6 Index
A
Assembly .............................. 9
D
Declaration of Conformity ................. 11
Dimensions ............................. 8
E
Electrical wiring ......................... 10
Environmental protection ...................6
H
Heating capacity characteristic curve ......... 8
Heating capacity, characteristic curve ......... 8
I
Intended use ............................ 5
P
Packaging, disposal ...................... 6
R
Recycling .............................. 6
S
Safety
Dangers of failure to observe the safety
notes ............................... 4
General ............................. 4
Identification of notes ................... 4
Instructions for the operator .............. 5
Note for inspection work .................5
Note for installation work ................ 5
Note for maintenance work .............. 5
Personnel qualifications ................. 4
Safety-conscious working ................4
Unauthorised modification ...............5
Unauthorised replacement part manufacture . 5
T
Technical data ........................... 7
U
Unit data ............................... 7
Unit description .......................... 9
Unit dimensions ......................... 8
Unit disposal ............................ 6
W
Warranty ............................... 5
REMKO heater for anti-freeze protection
12
13
REMKO heater for anti-freeze protection
14
REMKO QUALITY WITH SYSTEMS
Air-Conditioning | Heating | New Energies
Telephone +49 (0) 5232 606-0
Telefax +49 (0) 5232 606-260
E-mail [email protected]
URL www.remko.de
REMKO GmbH & Co. KG
Klima- und Wärmetechnik
Im Seelenkamp 12
32791 Lage
Hotline within Germany
+49 (0) 5232 606-0
Hotline International
+49 (0) 5232 606-130
We reserve the right to make technical changes, and provide no guarantee as to the accuracy of this data!
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