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Fault

Possible cause

Check

Remedy

The unit i�� not running 
or ��hut�� it��elf down.�

Power failure.� 

��� all ele�tri�al equipment
working?

Che�k voltage and
wait for unit to re��tart.�

Main�� fu��e defe�tive.�
Ma��ter ��wit�h off.�

Are all lighting �urrent �ir�uit��
fun�tioning?

Repla�e main�� fu��e.�
Turn on ma��ter ��wit�h.�

Main�� feed damaged.�

��� all ele�tri�al equipment
working?

Repair by
��pe�iali��t �ompany.�

Waiting time after ��tarting up 
too ��hort.�

Did the unit re��tart after
approx.� 5 minute��?

S�hedule longer waiting time.�

Operation above or below
��pe�ified temperature range.�

Are the fan�� on the
unit ��till working?

Ob��erve temperature
range.�

�ntermittent over
or undervoltage.�

Che�king by a
��pe�iali��t �ompany.�

Shut down and re��tart the
��y��tem.�

Di���onne�ting �onta�t on exter-
nal �onden��ation pump open.�

��� the external �onden��ation 
pump for the indoor unit indi�a-
ting a fault?

Clean the �onden��ation pump 
drain.�
Have the pump repla�ed.�

The unit i�� operating 
with redu�ed or no 
refrigerating �apa�ity.�

Air inlet and/or outlet
opening blo�ked by
foreign obje�t��.�

�oreign obje�t�� around air inlet 
and outlet?

Clean blade��.� 
Redu�e air re��i��tan�e.�

Heating or wind load 
in�rea��ed.�

Ha�� there been a �hange to
the �on��tru�tion or appli�ation?

Take appropriate mea��ure��
to ��top the heating and wind
load��.�

No heat di���harge po����ible.�

��� the fan on the outdoor unit
working?

Che�k fan / winter
�ontroller.�

Leak in refrigeration �ir�uit.�

��� ��ignifi�ant fro��t formation vi-
��ible on the large blo�king valve?

Repair by
��pe�iali��t �ompany.�

The unit ha�� been manufa�tured u��ing ��tate of the art produ�tion method�� and it�� fun�tion ha�� been te��ted 
��everal time��.� However, if any malfun�tion�� ��hould o��ur, �he�k the unit u��ing the li��t below.� �n ��y��tem�� with

 However, if any malfun�tion�� ��hould o��ur, �he�k the unit u��ing the li��t below.� �n ��y��tem�� with

However, if any malfun�tion�� ��hould o��ur, �he�k the unit u��ing the li��t below.� �n ��y��tem�� with

 �n ��y��tem�� with

�n ��y��tem�� with 

indoor and outdoor unit��, you ��hould refer to the “Trouble��hooting” and �u��tomer ��ervi�e ��e�tion�� in both op-
erating manual��.� �f all the fun�tion �he�k�� have been performed and the unit i�� ��till not working properly, notify

 �f all the fun�tion �he�k�� have been performed and the unit i�� ��till not working properly, notify

�f all the fun�tion �he�k�� have been performed and the unit i�� ��till not working properly, notify 

your lo�al ��pe�iali��t dealer.�

Troubleshooting and customer service

Functional fault

Summary of Contents for RKS 435H

Page 1: ...Edition GB S08 REMKO RKS RKS 435H RKS 448H Combination indoor units Operation Technology Spare parts...

Page 2: ......

Page 3: ...d printing errors Safety instructions 4 Environmental protection and recycling 4 Guarantee 4 Transport and packaging 5 Unit description 5 Combinations 5 Operation 6 Shutting down 6 Care and maintenanc...

Page 4: ...ed areas or atmospheres Touching certain parts of the unit or components can result in burns or other injury Installation repairs and mainte nance may only be carried out by authorised specialist per...

Page 5: ...unit is made up of a refrigeration circuit with com pressor a blade condenser a condenser fan a reversing valve and a regulating element The outdoor unit can be combined with REMKO indoor units with...

Page 6: ...of the unit and long service life Care and maintenance The power supply must be disconnected and secured against reconnection before carrying out any work on the equipment CAUTION Care Keep the unit f...

Page 7: ...placed The unit is operating with reduced or no refrigerating capacity Air inlet and or outlet opening blocked by foreign objects Foreign objects around air inlet and outlet Clean blades Reduce air re...

Page 8: ...never kink or crimp the refrigerant pipes Avoid unnecessary bends This minimises the pressure loss in the refrigerant pipes and ensures a free return flow of compressor oil In particular you should t...

Page 9: ...take the form of a small roof However the measures taken may not affect the emerging flow of hot air Wind If the unit is to be installed in windy locations it must be en sured that the emerging flow...

Page 10: ...for the indoor unit 3 During installation observe the bending radii of the refrigerant pipes and never bend a section of the pipe twice This can result in brittleness and a risk of cracking 4 Lay the...

Page 11: ...rge valve suction pressure After connection the leak test is performed with dry nitrogen The leak test involves spraying the connections fitted with leak detection spray If bubbles can be seen the con...

Page 12: ...st be installed Connecting the RXW 480 wall unit A power supply to the indoor unit and a 6 wire control line from the outdoor unit to the indoor unit must be installed The power supply comes from the...

Page 13: ...connection Outdoor unit Indoor unit Mains feed line Compressor actuation Neutral conductor External conductor Protective conductor Fan actuation Reversing valve actuation Red Red Yellow Yellow 230 V...

Page 14: ...BN YE YE YE RD RD RD BK RKS 435H combined with RXW 350 RKS 448H combined with RXD 480 RKS 448H combined with RXD 480 Colour coding WH White BL Blue BN Brown BK Black RD Red YE Yellow Colour coding WH...

Page 15: ...peci fied in the table below Before initial operation Make sure that the refrigerant used is always added in liquid form CAUTION Initial operation Initial operation must be carried out in line with th...

Page 16: ...control 7 Switch the indoor unit to cool ing mode 9 Check the control of the indoor unit using the functions de scribed in the operating manu al timer temperature settings and all mode settings 10 Mea...

Page 17: ...umption cooling 1 kW 1 07 1 48 Rated elec current consumption cooling 1 A 4 91 6 91 Rated elec power consumption heat ing 2 kW 1 09 1 51 Rated elec current consumption heating 2 A 4 99 7 01 Max elec s...

Page 18: ...Unit illustration 1 2 3 4 6 7 8 9 11 10 Dimensions and design subject to modifications in the course of technical development 12 13 5 REMKO RKS 18...

Page 19: ...826 4 Blade condenser 1105812 1105823 5 Cover plate 1105810 1105810 6 Side plate right 1105815 1105815 7 Compressor complete 1105813 1105824 8 Condenser compressor 1105814 1105825 9 Condenser condense...

Page 20: ...estic and international sales network our sales staff are highly qualified experts REMKO field staff are more than just salesmen They must be able to advice our customers on air conditioning and heati...

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