vaillant Monobloc Heat Pump System User Manual
- June 10, 2024
- Vaillant
Table of Contents
vaillant Monobloc Heat Pump System
Safety
General safety information
Risk of death due to lack of safety devices
The basic diagrams included in this docu-ment do not show all safety devices
required for correct installation.
- Install the necessary safety devices in the installation.
- Observe the applicable national and inter-national laws, standards and directives.
Complying with the safety warnings
Observe the safety warnings in the other applicable documents.
Using these instructions
These system installation instructions do not, under any circumstances,
replace the instruc-tions that are enclosed with the installation’s system
components.
Using the basic system diagrams
- The basic system diagrams are examples of how to set up systems.
- Choose the basic system diagram you want to use to set up your installation.
- Enter the number of your chosen basic system diagram into the control’s Basic system diagram configuration function (→ Installation instructions for the VRC 720 or VRC 700).
Using the wiring diagrams
Each basic system diagram has an associ-ated wiring diagram that must be used.
Using a different wiring diagram may result in sys-tem failure.
Notes on the documentation
Observing other applicable documents
Always observe all the operating and installation instruc-tions included
with the system components.
Working with the system assistant
The system assistant is used to help with the system installa-tion and start-
up. The important steps are shown, depending on the selected basic system
diagrams. All other necessary instructions and information are described in
the instructions for the system components.
- Use the references to the instructions.
- Follow the information, directions and instructions that are described here.
The settings on the control for the indoor unit and/or the system control refer to the basic system diagram that was shown before.
- Configure the system in accordance with the end user’s requirements.
- Adjust the system settings to the local conditions.
Key for the symbols
Key for the system components
| Compon- ent | Meaning |
|---|---|
| 1 | Heat generator |
| 2a | Air-to-water heat pump |
| 7f | Heat recovery module |
| 8a | Expansion relief valve |
| 8c | Safety assembly for the potable water connec- tion |
| 8e | Expansion vessel for heating |
| 9a | Single-room temperature control valve (thermostatic/motorised) |
| 9d | Bypass valve |
| 9h | Filling/draining cock |
| 9j | Tamper-proof capped valve |
| 10e | Line strainer with magnetite separator |
| 10 l | Flexible connections |
| 12 | System control |
| 12b | Heat pump expansion module |
| 12g | eBus coupler |
| 12k | Limit thermostat |
| 12m | Outdoor temperature sensor |
| 12q | VR 921 communication unit |
| SysFlow | System temperature sensor |
Mono heat pump systems
| Basic system diagram | 0020194193 |
|---|---|
| Heat generator | aroTHERM VWL … A … S2 |
VWZ AI
Heat source
| X
Regulated heating cir- cuits| –
Non-regulated heating circuits| 1
Additional functions
| X
System control| X
Special equipment| From sensoCOMFORT VRC 720 or multiMATIC VRC 700
ecoTEC VCW combi wall-hung boiler VWZ MPS 40 heat recovery module
As of the VR 920 communication unit
Outdoor temperature sensor VR 32 bus coupler
System with system control 0020194193
Basic system diagram
Wiring diagram
Preparing for installation
- aroTHERM plus installation and maintenance instructions, from section 4.1 onwards
- VWZ AI installation instructions, from section 4.1 onwards
- Installation instructions for the heat recovery module
- Accessory set-up instructions
| Work step| Selected information/measures
---|---|---
1| Building
► Establishing a wall duct
|
2| Outdoor unit installation site, heat pump control module
► Defining the installation site
| ► Comply with the specific conditions for the installation site and the installation type.
Important planning dimensions:
– Maximum height difference between the outdoor unit and the heat recovery module: 15 m
– Remaining feed head of the heat source circuit pump:
→ aroTHERM plus installation and maintenance instructions, from sec- tion 5.4 onwards
– Minimum clearances and installation clearances:
→ aroTHERM plus installation and maintenance instructions, from sec- tion 5.4 onwards
→ Installation and maintenance instructions for the heat pump control module
3| Outdoor unit
Condition: Depending on the installation type/condition
► Establishing the strip foundations
► Mounting the unit mounting bracket
► Procuring and installing other accessories
► Setting up/installing the product
| ► If required, use the transport belts that are supplied.
Condition: Establishing the strip foundations
► Ensure that the condensate discharge can be positioned in the centre above the downpipe.
4| Outdoor unit
► Installing the condensate discharge pipe
| ► Ensure that condensate does not reach paths (ice formation).
5| Heat pump control module
► Mounting the product
|
Installing the heating and domestic hot water circuit
- aroTHERM plus installation and maintenance instructions, from section 6.1 onwards
- Installation instructions for the heat recovery module
- Accessory set-up instructions
| Work step| Selected information/measures
---|---|---
6| Heating circuit
► Connecting the heat recovery module
► Installing heating circuit connections
► Connecting the bypass valve
► Connecting the expansion vessel
| ► Observe the connection symbols.
► Adjust the bypass valve in such a way that the minimum volume flow.
► Note the remaining feed head of the heat pump and the pressure losses in the system.
7| Safety devices
► Installing the safety devices
| ► Ensure that all of the required safety device have been installed in the sys- tem.
Installing the electrical connections
- aroTHERM plus installation and maintenance instructions, from section 7.1 onwards
- ecoTEC VCW installation and maintenance instructions, from section 6.1 onwards
- sensoCOMFORT operating and installation instructions, from section 3 onwards
- VWZ AI installation instructions, from section 5.1 onwards
- Accessory set-up instructions
| Work step| Selected information/measures
---|---|---
8| System control
► Connecting the system control
| ► Ideally, install the system control in a living room.
| Work step| Selected information/measures
---|---|---
9| Heat pump control module
► Connecting the heat pump control module
► Establishing the power supply
| ► Install the heat pump control module.
► Route the cables through the strain reliefs from below and into the product.
10| Outdoor temperature sensor
► Connecting the outdoor temperature sensor
| ► Observe the installation conditions (wind-protected, no direct sunlight, no effect from heat sources, etc.)
→ sensoCOMFORT operating and installation instructions
11| Bus coupler
► Connecting the bus coupler
|
12| Outdoor unit
► Connecting the outdoor unit
| ► Select a correct cable cross-section.
► Comply with the connection conditions for the energy supply company.
► Determine whether an electrical connection 1~/230 V or 3~/400 V (→ data plate) is required.
► Determine whether the power supply should be set up using a single-tariff meter or a dual-tariff meter.
Condition: Depending on the installation site
► Install one or two type-B residual-current circuit breakers for the outdoor unit, depending on the connection type.
13| Outdoor unit
► Connecting a limit thermostat
| ► Observe the wiring diagram.
→ aroTHERM plus installation and maintenance instructions, appendix C
14| Electrical house installation
► Installing components for the energy supply company lockout function
| Condition: Power supply via a dual-tariff meter Actuating the ESCO
contact
15| Heat pump control module
► Connecting the system temperature sensor
► Connecting the contact for the energy supply company lockout on the heat pump control
module
| ► Observe the wiring diagram.
→ VWZ AI installation instructions, appendix B
16| Outdoor unit, heat pump control module, system control, communication unit, bus coupler
► Installing the eBUS line
► Earthing connection pipes
| ► Check whether the existing conductor cross-sections for the eBUS line are sufficient for the planned line length.
Validity: Indoor unit
► Do not connect more than two eBUS lines to the plug on the control PCB.
Condition: Metallic connection pipes
► Earth the connection pipes.
Completing installation
aroTHERM plus installation and maintenance instructions, from section 7.13
onwards
| Work step| Selected information/measures
---|---|---
17| Building
► Sealing the wall duct
| ► Seal the wall duct using a suitable sealing compound.
Starting up the system
- aroTHERM plus installation and maintenance instructions, from section 8.1 onwards
- VWZ AI installation and maintenance instructions, from section 7.1 onwards
| Work step| Selected information/measures
---|---|---
1| Heating circuit
► Filling and purging the heating installation
| ► Observe the requirements for the heating/filling and supplementary water.
► Use the purge programme. Ensure that the purging valves on the heating manifold are open.
2| Outdoor unit
► Switching on the power supply
|
3| Heat pump control module
► Switching on the power supply
|
| Menu path/entry| Comment
---|---|---
− As soon as the heat pump control module is supplied with power, the
installation assistant starts up. −
4| To start the install. assistant, press OK| Condition:
Installation assistant not started
1. Press and twice at the same time.
2. Enter the competent person code 17.
3. Navigate to Start inst. assistant.
4. Press OK.
5| Language| ► Set the required language.
6| Syst. control avail.?| ► Yes
7| Cooling technology| Condition: Product with cooling mode
► Active cooling
8| Compr. current limit| Condition: Reduced electrical fuse protection
► Reduce the power supply accordingly.
– Output 5–7 kW: 13–16 A
– Output 12 kW: 20–25 A
This reduction affects the output for the heating and domestic hot water at the same time.
9| Multi-function output relay| ► Set the connected component.
10| Check prog.: Purge building circuit| ► Yes , duration: 60
minutes
11| Contact details : Telephone number| ► Enter your telephone
number:
– : Insert numbers from 0 to 9 and blank spaces
– : Navigate to the next/previous digit
12| End the installation assistant?| ► Yes
− The required system settings have been implemented. −
13| Menu → Installer level → Fault list →| ► Check the system for
faults.
Condition: Fault present
► Troubleshooting: → VWZ AI installation and maintenance instructions, from section 9.3 onwards
► If required, carry out any relevant sensor/actuator tests: Menu → Installer level → Test menu → Sensor/actuator test →
− All displayed faults have been eliminated. The heating installation is
adapted. –
14| Menu → Installer level → Configuration| ► Configure the
system in accordance with the end user’s requirements.
15| DHW mode| ECO : Compressor output control that is as efficient
as possible (longer cylinder charging time).
Normal : Balanced control (short cylinder charging time/maximum compressor output).
Balance : Rapid charging for a cooled cylinder in combination with efficient re- charging by controlling the compressor speed.
16| Compr. noise reduct.| Condition: Time programmes for noise reduction mode planned
► No reduction in the compressor output if no time period for noise reduction mode is selected in the system control.
► 40 to 60: Reduction in the compressor output in noise reduction mode by a set percentage value.
Setting in the system control: Noise reduction operation.
| Menu path/entry| Comment
---|---|---
− The system control starts the installation assistant in the query
Language −
17| Language| ► Set the required language.
Condition: Installation assistant (query Language ) not started
1. Use the rotary knob to activate the system control.
2. Press both selection buttons at the same time for at least 10 seconds ( Reset to default setting? appears).
3. Set Everything → Yes.
18| Date| ► Set the current date.
19| Time| ► Set the current time.
20| Have the installation assistants for all sys- tem components finished?
Press OK to con- firm| ► OK
− A search for all active eBUS connections is started −
− The installation assistant automatically configures the system to the Components found. −
► Confirm each of the following configurations using OK :
21| Components found| Control : System control
Heat pump 1 : Outdoor unit
Add. module heat pump : Heat pump control module
22| System diagram| 8 : Heat pump without system separation
23| Heating circuits and zones| 1 direct HC : 1 non-regulated
heating circuit
− The required system settings have been implemented. −
− The unit starts up −
24| Inst.assist. finished. Continue with:| ► System configuration
25| → Fault status| ► Check the system for faults.
Condition: Fault present
► Troubleshooting: → multiMATIC installation instructions, appendix D.1
− All of the faults that are shown have been eliminated. The heating
installation is adapted. −
26| Menu → Installer level → System configura- tion| ► Configure
the system in accordance with the end user’s requirements.
System —-
27| OT constant heating| Recommendation: -5 °C
28| Adaptive heat. curve| Condition: Control installed in the living
room
► Yes
29| Automatic cooling| Condition: Product with cooling mode
► Yes
30| Heat. bivalence point| ► Setting in consultation with the end user
31| DHW bivalence point| ► Setting in consultation with the end user
32| Energy supplier| ► HP &BH off: Energy supply company lockout
function for the heat pump and back-up heater enabled
33| Noise reduction operation →| Condition: Time programmes for
noise reduction mode planned
► Set the desired time programmes.
► Ensure that the compressor output in noise reduction mode is reduced. Set- ting in the indoor unit’s control Compr. noise reduct..
HEATING1 —-
34| Max limit outs.temp.| Recommendation: 16 °C
35| Heating curve| ► 0.2 – 0.5: Underfloor heating
► 0.6 – 1.0: Radiator heating
36| Min. cool. fl. tgt temp.| Condition: Underfloor heating
► Activate the dew point monitoring.
| Menu path/entry| Comment
---|---|---
Domestic hot water —-
37| Anti-legionella day| ► Set the desired day of the week.
38| Ch. pump overrun time| Recommendation: 1 min
Supplier Vaillant Ltd. Nottingham Road Belper Derbyshire DE56 1JT Telephone 0330 100 3143 info@vaillant.co.uk www.vaillant.co.uk
Publisher/manufacturer Vaillant GmbH Berghauser Str. 40 D-42859 Remscheid
- Tel. +49 2191 18 0
- Fax +49 2191 18 2810
- info@vaillant.de
- www.vaillant.de
© These instructions, or parts thereof, are protected by copyright and may be reproduced or distributed only with the manufacturer’s written consent. Subject to technical modifications.