DOMUSA TEKNIK DUAL CLIMA R User manual

DUAL CLIMA R
Air to Water Heat Pump
EN | INSTALLATION AND OPERATION INSTRUCTIONS

Thank you for choosing a DOMUSA TEKNIK heat pump. From the range of
DOMUSA TEKNIK products you have chosen the DUAL CLIMA R model.
This is a heat pump capable of providing the ideal level of comfort for your
home, always with a suitable hydraulic installation.
This manual forms an essential part of the product and it must be given to
the user. Read the warnings and recommendations in the manual carefully,
as they contain important information on the safety, use and maintenance
of the installation.
This water pump must be installed by qualified personnel only, in accordance
with the legislation in force and following the manufacturer’s instructions.
The start-up of this heat pump and any maintenance operations must be
carried out only by Official Technical Assistance Services of DOMUSA
TEKNIK.
Incorrect installation of this heat pump could result in damage to people,
animals or property, and the manufacturer will not be held liable in such
cases.

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DUAL CLIMA R
CONTENTS
1 SAFETY WARNINGS .................................................................................................................... 5
1.1 USAGE AND INSTALLATION WARNINGS ............................................................................................................ 5
1.2 PERSONAL SAFETY WARNINGS ...................................................................................................................... 5
1.3 TRANSPORT, STORAGE AND HANDLING WARNINGS ............................................................................................. 6
1.4 FREEZE PROTECTION WARNINGS ................................................................................................................... 6
2 ELECTRONIC CONTROLLER ........................................................................................................ 7
2.1 CONTROL UNIT ........................................................................................................................................ 7
2.2 ICONS ON THE CONTROL UNIT ..................................................................................................................... 8
3 SWITCHING THE HEAT PUMP ON AND OFF ................................................................................. 9
4 OPERATION ............................................................................................................................. 10
4.1 OPERATING MODE MANUAL SELECTION ......................................................................................................... 10
4.2 COOLING MODE ................................................................................................................................. 10
4.3 HEATING MODE ................................................................................................................................. 10
4.4 DHW MODE ..................................................................................................................................... 11
4.5 COOLING AND DHW MODE + ........................................................................................................... 11
4.6 HEATING AND DHW MODE + ........................................................................................................... 11
4.7 OPERATION IN HEATING/COOLING "AUTO" MODE .......................................................................................... 11
4.8 OPERATION WITH ROOM THERMOSTATS ........................................................................................................ 12
4.9 OPERATION ACCORDING TO OUTDOOR WEATHER CONDITIONS (AU) ..................................................................... 13
4.10 NIGHT MODE ...................................................................................................................................... 14
4.11 ANTI-LEGIONELLA FUNCTION ............................................................................................................. 14
5 TEMPERATURE SELECTION ...................................................................................................... 16
5.1 ADJUSTING THE COOLING MODE SETPOINT TEMPERATURE .................................................................................. 16
5.2 ADJUSTING THE HEATING MODE SETPOINT TEMPERATURE .................................................................................. 17
5.3 ADJUSTING THE DHW MODE SETPOINT TEMPERATURE ..................................................................................... 17
5.4 ADJUSTING THE ANTI-LEGIONELLA FUNCTION PARAMETERS ................................................................................ 17
6 INSTALLATION INSTRUCTIONS ................................................................................................ 19
6.1 LOCATION ............................................................................................................................................ 19
6.2 ACCESSORIES SUPPLIED ........................................................................................................................... 20
6.3 HEAT PUMP FASTENING ........................................................................................................................... 21
6.4 CONDENSATES DRAINAGE ........................................................................................................................ 21
6.5 HYDRAULIC INSTALLATION ........................................................................................................................ 22
6.5.1 Installing a DHW tank ...................................................................................................................... 23
6.5.2 Filling the installation ....................................................................................................................... 24
6.5.3 Draining the heat pump ................................................................................................................... 24
6.6 ELECTRICAL CONNECTIONS ....................................................................................................................... 25
6.6.1 Connection to the main power supply ............................................................................................... 25
6.6.2 Main board connection ..................................................................................................................... 27
6.6.3 Connecting the DHW tank sensor ..................................................................................................... 27
6.6.4 Connecting a backup source of energy for DHW (E1) ......................................................................... 28
6.6.5 Connecting the DHW diverter valve (G2) ........................................................................................... 29
6.6.6 Connecting a backup source of energy for Heating installation (E2) ..................................................... 3 0
6.6.7 Connecting the Heat/Cold diverter valve (G3) .................................................................................... 31
6.6.8 Connecting a Heat Pump auxiliary pump (C6) .................................................................................... 32
6.6.9 Room thermostat installation ............................................................................................................ 32
6.7 FREEZE PROTECTION .............................................................................................................................. 37
6.7.1 Antifreeze in DHW mode .................................................................................................................. 38
6.7.2 Antifreeze in Heating mode .............................................................................................................. 38
7 CONFIGURING THE HEAT PUMP ............................................................................................... 39
8 SETTINGS MENU ...................................................................................................................... 40
8.1 SETTINGS ............................................................................................................................................ 40
8.2 TIME SCHEDULING .................................................................................................................................. 41
8.3 SERVICE MENU ..................................................................................................................................... 42

EN
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DUAL CLIMA R
9 STATUS MENU ......................................................................................................................... 44
10 CONFIGURATION OF AUXILIARY OR SUPPORT SOURCES (E1, E2) ............................................ 47
10.1 BACKUP SOURCE MODE (P27 = 0) ............................................................................................................ 48
10.2 AUXILIARY SOURCE MODE (P27 = 1) ........................................................................................................ 48
10.3 PASSIVE COMBINED MODE (P27 = 2) ........................................................................................................ 49
10.4 ACTIVE COMBINED MODE (P27 = 3) ......................................................................................................... 49
11 COMMISSIONING ................................................................................................................... 50
11.1 PRIOR WARNINGS ................................................................................................................................. 50
11.2 START-UP .......................................................................................................................................... 50
11.3 EQUIPMENT DELIVERY ........................................................................................................................... 50
12 MAINTENANCE ....................................................................................................................... 51
13 DISPOSAL AND RECYCLING .................................................................................................... 5 2
14 ELECTRICAL DIAGRAMS ......................................................................................................... 53
14.1 NOMENCLATURE .................................................................................................................................. 53
14.2 DUAL CLIMA 6R .................................................................................................................................. 54
14.3 DUAL CLIMA 9R .................................................................................................................................. 55
14.4 DUAL CLIMA 12R ................................................................................................................................. 56
14.5 DUAL CLIMA 16R ................................................................................................................................. 57
14.6 DUAL CLIMA 19R ................................................................................................................................. 58
14.7 DUAL CLIMA 16RT ............................................................................................................................... 59
14.8 DUAL CLIMA 19RT ............................................................................................................................... 60
15 TECHNICAL CHARACTERISTICS .............................................................................................. 61
16 CHARACTERISTICS OF THE CIRCULATION PUMP ..................................................................... 62
16.1 CHARACTERISTICS OF THE SC PUMP .......................................................................................................... 62
16.2 SYMBOLOGY ....................................................................................................................................... 62
16.2.1 Control modes ............................................................................................................................... 63
16.2.2 Functions ...................................................................................................................................... 64
16.3 CIRCULATING PUMP FLOW CURVES ............................................................................................................ 65
16.4 DUAL CLIMA 12R, 16R AND 16RT CIRCULATION PUMP WORKING CURVES ........................................................... 65
16.5 DUAL CLIMA 19R AND 19RT CIRCULATION PUMP WORKING CURVES ................................................................... 66
16.6 DUAL CLIMA 6R AND 9RT CIRCULATION PUMP WORKING CURVES ...................................................................... 67
17 PERFORMANCE AND EFFICIENCY DIAGRAMS ........................................................................... 68
18 DIAGRAMS AND MEASUREMENTS ........................................................................................... 75
19 ALARM CODES ....................................................................................................................... 76
20 WARRANTY CONDITIONS ....................................................................................................... 8 0

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DUAL CLIMA R
1 SAFETY WARNINGS
1.1 Usage and installation warnings
DUAL CLIMA R heat pump must be installed by personnel authorised by the Ministry of Industry, in
compliance with the applicable laws and regulations. The precautions detailed here cover very
important issues. Please be sure to follow them carefully.
Read carefully this instruction manual and keep it in a safe, easily-accessible place. DOMUSA TEKNIK
will not be liable for any damages caused by failure to follow these instructions.
This heat pump is suitable for use in both heating and cooling installations and can be combined with
fan coils, underfloor heating/cooling, low-temperature radiators, and domestic hot water tanks
(optional). It must be connected to a heating/cooling installation and/or a domestic hot water
distribution network and compatible with its performance and power.
This appliance must only be used for the purpose for which it has been expressly designed. Any other
use is considered unsuitable and therefore hazardous. The manufacturer shall not be considered liable
under any circumstances for damage caused by unsuitable, erroneous or irrational use.
Remove all the packaging and check the contents are complete. In case of doubt, do not use the heat
pump. Contact your supplier. Keep the packaging elements out of reach of children, as they can be
dangerous.
Improper installation or placement of equipment or accessories may cause electrocution, short circuit,
leakage, fire, or other damage to the equipment. Use only accessories or optional equipment
manufactured by DOMUSA TEKNIK and designed specifically to work with the products presented in
this manual. Do not modify, replace or disconnect any safety or control device without first consulting
the manufacturer or the Official Technical Assistance Service of DOMUSA TEKNIK.
When it is decided not to use any more the heat pump, disable the parts that could represent a potential
hazard.
1.2 Personal safety warnings
Always wear appropriate personal protective equipment (gloves, safety goggles, etc.) when performing
installation and/or maintenance on the unit.
Do not touch any switch with wet fingers. Touching a switch with wet fingers may cause electric shock.
Before accessing the electrical components of the heat pump, disconnect the main power supply
completely.
Disconnect all electricity sources before dismantling the cover panel from the electric panel or before
making any connections or accessing electrical parts.
To avoid electrocutions, be sure to turn off the power for 1 minute (or more) before servicing the
electrical parts. Even after 1 minute, always measure the voltage at the terminals of the main circuit
capacitors and other electrical parts before touching them and make sure that the voltage is equal to
or less than 50 Vdc.
When the cover panels are disassembled, the energised parts can be easily accessed. Never leave the
unit unattended during installation or during maintenance work when the cover panel is removed.
Do not touch the coolant pipes, water piping, or internal parts during and immediately after operation.
Pipes and internal parts may be excessively hot or cold, depending on the use of the unit.