REMKO RXT 523 DC User manual

Assembly and operating instructions
Read the instructions prior to performing any task!
REMKO RXT...DC
RXT 523 DC, RXT 683 DC, RXT 1053 DC, RXT 1403 DC
Inverter wall/ceiling-mounted unit with split design
0138-2016-06 Edition 1, en_GB

Installation and operating instructions (translation of the orig-
inal)
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............................................................................................................. 5
1.1 General safety notes....................................................................................................................... 5
1.2 Identification of notes...................................................................................................................... 5
1.3 Personnel qualifications.................................................................................................................. 5
1.4 Dangers of failure to observe the safety notes................................................................................ 5
1.5 Safety-conscious working............................................................................................................... 5
1.6 Safety notes for the operator........................................................................................................... 6
1.7 Safety notes for installation, maintenance and inspection.............................................................. 6
1.8 Unauthorised modification and changes......................................................................................... 6
1.9 Intended use................................................................................................................................... 6
1.10 Warranty........................................................................................................................................ 6
1.11 Transport and packaging.............................................................................................................. 7
1.12 Environmental protection and recycling........................................................................................ 7
2 Technical data....................................................................................................................................... 8
2.1 Unit data.......................................................................................................................................... 8
2.2 Unit dimensions ............................................................................................................................ 11
2.3 Performance curves for heating and cooling ................................................................................ 12
3 Design and function............................................................................................................................ 16
3.1 Unit description............................................................................................................................. 16
4 Operation............................................................................................................................................. 17
4.1 General notes................................................................................................................................ 17
4.2 Display on indoor unit.................................................................................................................... 18
4.3 Keys on the remote control........................................................................................................... 19
5 Installation instructions for qualified personnel.............................................................................. 25
5.1 Important notes prior to installation............................................................................................... 25
5.2 Selection of installation location ................................................................................................... 25
5.3 Installation materials..................................................................................................................... 26
5.4 Wall openings................................................................................................................................ 27
5.5 Fastening options for the indoor unit............................................................................................. 27
5.6 Minimum clearances..................................................................................................................... 29
5.7 Connection variants...................................................................................................................... 29
5.8 Oil return measures....................................................................................................................... 29
6 Installation........................................................................................................................................... 30
6.1 Preparations for installation........................................................................................................... 30
6.2 Installation of the indoor unit......................................................................................................... 30
6.3 Connection of refrigerant piping.................................................................................................... 31
6.4 Additional notes on connecting the refrigerant piping................................................................... 33
6.5 Leak testing................................................................................................................................... 33
6.6 Adding refrigerant.......................................................................................................................... 34
7 Condensate drainage connection and safe drainage...................................................................... 34
8Electrical wiring................................................................................................................................... 36
8.1 General notes................................................................................................................................ 36
8.2 Connecting the indoor unit............................................................................................................ 36
8.3 Outdoor unit connection................................................................................................................ 37
8.4 Electrical wiring diagram............................................................................................................... 37
8.5 Electrical drawings........................................................................................................................ 40
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9 Before commissioning....................................................................................................................... 46
10 Commissioning................................................................................................................................... 46
11 Shut-down............................................................................................................................................ 47
12 Troubleshooting, customer service and fault analysis................................................................... 48
12.1 Troubleshooting and customer service....................................................................................... 48
12.2 Indoor unit fault analysis............................................................................................................. 51
13 Care and maintenance........................................................................................................................ 64
14 Exploded view and spare parts lists................................................................................................. 66
14.1 Exploded view - Indoor unit RXT 523-683 DC ........................................................................... 66
14.2 Spare parts list - Indoor unit RXT 523-683 DC........................................................................... 67
14.3 Exploded view - Indoor unit RXT 1053-1403 DC ....................................................................... 68
14.4 Spare parts list - Indoor unit RXT 1053-1403 DC....................................................................... 69
14.5 Exploded view - Outdoor unit RXT 523 DC ................................................................................ 71
14.6 Spare parts list - Outdoor unit RXT 523 DC................................................................................ 72
14.7 Exploded view - Outdoor unit RXT 683 DC ................................................................................ 73
14.8 Spare parts list - Outdoor unit RXT 683 DC................................................................................ 74
14.9 Exploded view - Outdoor unit RXT 1053 DC .............................................................................. 75
14.10 Spare parts list - Outdoor unit RXT 1053 DC............................................................................ 76
14.11 Exploded view - Outdoor unit RXT 1403 DC ............................................................................ 78
14.12 Spare parts list - Outdoor unit RXT 1403 DC............................................................................ 79
15 Index..................................................................................................................................................... 81
REMKO RXT...DC
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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.
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