PAX Mistral iV12t User manual

Ventilation system Pax Mistral iV12t
Installation and operating instructions 07/2015

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Ventilation system Pax Mistral iV12 • Installation and operating instructions Ventilation system Pax Mistral iV12 • Installation and operating instructions
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Trademarks
Pax®, MZ-One®and Clust-Air®are protected trademarks of Pax GmbH. Any other designation used
in this documentation may be a trademark whose use by any third party and for the purposes of such
third party may violate the rights of its holders.
Disclaimer of liability
This documentation is an English translation of the original German installation and operating
instructions. After completion of the installation, it should be passed onto the user (tenant, owner,
building management, etc.).
The contents of this documentation have been checked for compliance with the hardware and
software described. However, discrepancies cannot be ruled out, so complete compliance cannot be
guaranteed. This documentation will be updated on a regular basis. Any correction required or any
useful additions will be included in subsequent editions as a general rule.
Version 1.5.00
Table of contents
1 User and safety instructions .................................................................................................. 4
1.1 Safety instructions.......................................................................................................... 4
1.2 Intended use .................................................................................................................. 5
1.3 Incorrect use .................................................................................................................. 5
1.4 Qualied personnel ........................................................................................................ 5
1.5 General symbols ............................................................................................................ 5
2 System overview ..................................................................................................................... 6
2.1 Layout ............................................................................................................................ 7
2.2 Function ....................................................................................................................... 10
2.3 Control elements ...........................................................................................................11
3 Preparations prior to installation ......................................................................................... 14
3.1 Dimensions .................................................................................................................. 14
3.2 Dimensioned drawings................................................................................................. 15
4 Electrical connections .......................................................................................................... 19
5 Assembly and installation .................................................................................................... 20
5.1 Preparation sets ........................................................................................................... 20
5.2 Completion set ............................................................................................................. 21
5.3 Information on RAL-compliant installation.................................................................... 21
5.4 Creating the wall opening/plaster groove..................................................................... 22
5.5 Laying the controller cable ........................................................................................... 23
5.6 Fitting the wall sleeve................................................................................................... 24
5.7 Fitting the weather protection hood.............................................................................. 28
5.8 Installing the corner at tube........................................................................................ 34
5.9 Installing the embrasure lattice .................................................................................... 37
5.10 Installing the thermal accumulator ............................................................................... 39
5.11 Starting the ventilation system ..................................................................................... 41
5.12 Fitting an inner cover.................................................................................................... 42
6 Operation................................................................................................................................ 45
6.1 Opening/closing the inner cover................................................................................... 45
6.2 Replacing the dust lter................................................................................................ 47
6.3 Installing/removing the thermal accumulator................................................................ 50
6.4 Cleaning the thermal accumulator ............................................................................... 54
7 Specication .......................................................................................................................... 55
8 Standard delivery, accessories and spare parts ................................................................ 58
9 Servicing and maintenance .................................................................................................. 63
10 Troubleshooting and disposal ............................................................................................. 65
11 Warranty and service ............................................................................................................ 67
Company details.................................................................................................................... 71
TABLE OF CONTENTS

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Ventilation system Pax Mistral iV12 • Installation and operating instructions Ventilation system Pax Mistral iV12 • Installation and operating instructions
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USER AND SAFETY INSTRUCTIONS USER AND SAFETY INSTRUCTIONS
1 User and safety instructions
The user and safety instructions section contains basic instructions on how to operate the Pax®
iV12-Smart ventilation system safely.
1.1 Safety instructions
Read all the instructions on installation, operation and maintenance of the Pax®iV12-Smart
ventilation system provided in this section. Also observe any safety instructions that precede the
operating instructions described.
Before working on the equipment/system, read the safety instructions carefully. Failure to
observe safety instructions may cause personal injury and/or material losses.
The safety instructions in these installation and operating instructions are set out in a standard
way and are identied with a symbol to the left of the instruction. A keyword above the text
indicates the level of risk involved. Where several different hazard levels coincide, always follow
the safety instructions for the highest level.
DANGER
Type and source of risk. Immediate risk of serious personal injury.
Possible consequences of the risk!
►Action to be taken to avoid the risk.
WARNING
Type and source of risk. Potential risk of serious personal injury.
Possible consequences of the risk!
►Action to be taken to avoid the risk.
CAUTION
Type and source of risk. Immediate or potential risk of slight/moderate personal injury.
Possible consequences of the risk!
►Action to be taken to avoid the risk.
NOTE
Type and source of an undesirable event or state.
Immediate or potential risk of material losses.
Possible consequences of the event or state!
►Action to be taken to avoid the event or state.
In addition to the safety instructions, a TIP symbol indicates practical and useful hints on using
the Pax®iV12-Smart ventilation system.
TIP
Please take care that the protrude from the wall sleeve on the outside depends on the cover to
the exterior.
1.2 Intended use
When installing the equipment/system, observe the applicable building codes, re protection
regulations and accident prevention regulations of the Employer's Liability Insurance Association
[Germany] or local equivalent.
Only use the equipment/system for the applications described in this documentation and only in
combination with the components recommended, approved and specied by Pax GmbH in this
documentation. Changes and modications to the equipment/system are not permitted.
Trouble-free and safe operation of the equipment/system can only be ensured provided it is
transported, stored and assembled correctly and operated and maintained with care. This
documentation is part of the equipment/system and must be available at all times. Observe all
safety regulations in this documentation.
1.3 Incorrect use
The equipment/system is not suitable for:
• Rooms with corrosive and caustic gases
• Rooms with extreme dust exposure
• Drying out buildings
Reliable fan operation is only guaranteed in rooms without polluted air.
The Pax®ventilation system works with safety extra-low voltage. Therefore the Pax®iV14
ventilation unit must not be connected directly to the 230 V power supply – it must always be
connected via a controller.
1.4 Qualied personnel
The equipment/system may only be installed and operated in conjunction with this documentation
and the controller documentation. Installation, wiring/electrical connection and initial start-up of
the equipment/system may only be performed by qualied personnel.
Qualied personnel within the meaning of the safety information in this documentation are
persons authorised to install, start up and identify equipment, systems and electrical circuits in
accordance with safety engineering standards.
1.5 General symbols
The following symbols are used in this manual:
Symbol Designation
►Instruction: instructs the operator to carry out an action
ÖÖResult: the result of carrying out the instructions
Arrows in graphics: show the direction of installation

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Ventilation system Pax Mistral iV12 • Installation and operating instructions Ventilation system Pax Mistral iV12 • Installation and operating instructions
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USER AND SAFETY INSTRUCTIONS USER AND SAFETY INSTRUCTIONS
2 System overview
The Pax iV12-Smart ventilation system comprises a wall sleeve in which a thermal accumulator
with fan is installed, an inner cover and a weather protection hood. It is generally installed in an
external wall. The standard length of the wall sleeve is 495 mm. For thicker walls, you have the
option of ordering wall sleeves with a length of 745 mm, which can then be cut to the appropriate
length when the wall is nished.
The Pax iV12-Smart ventilation system works according to the regenerator principle. A ceramic
thermal accumulator is charged with warm air through a reversible fan or discharged with cold air.
The integral thermal accumulator is charged up with the heat of the warm indoor air when it ows
outside (exhaust air). If the fan changes direction, it transfers the accumulated heat to the supply to
the outdoor air (supply air).
To ensure that this principle works correctly and that the volumes of supply air and exhaust air
correspond, at least two Pax iV12-Smart ventilation units are required. One ventilation unit works
in supply air mode and the other works in exhaust air mode. After 70 seconds, the fan changes its
rotational direction.
The Pax iV12-Smart ventilation unit is controlled via one of the following Pax system controllers:
• ZR8 • MZ-One
• ZR10-D
The design of the Pax iV12-Smart ventilation system is based on experiences with our successful
iV14 ventilation system in accordance with DIBt approval Z-51.3-156.
Characteristics
• Tailored solution for a pleasant room climate in workplaces, living areas and bedrooms.
• Low power consumption.
• Can be used for wall thicknesses of between 250 – 735 mm.
• Inner cover with integral dust lter1.
• Regulation of the air ow rate via a controller with easy operation (ZR8 / ZR10-D)
and programmable 7-day timer and multi-zone control (MZ-One).
Components
• Inner cover • Weather protection hood or corner connection
• Thermal accumulator with fan • Dust lter
• Wall sleeve • Pollen lter1)
Variants
• Ventilation unit with weather protection hood (white / grey)2)
• Ventilation unit with inner cover (round / square)2)
• Ventilation unit with corner connection
1) Can be ordered as an additional option.
2) Freely selectable.
2.1 Layout
iV12-Smart with weather protection hood iV12-Smart with corner connection
Fig. 1: Overview of iV12-Smart ventilation unit (weather protection hood / corner)
1 Interior plaster 5 Wall sleeve 9 Weather protection hood cover
(l.h.) / embrasure lattice (r.h.)
2 Inner cover base plate 6 Fan with felt strip
3 Inner cover holding plate 7 Thermal accumulator 10 Exterior render
4 Inner cover 8 Weather protection hood
base plate (l.h.) /
corner at tube (r.h.)
11 Insulation
12 Masonry
Wall sleeve
2
1
Fig. 2: Wall sleeve
1 Controller cable recess
2 Fixing element
2
13
4
10
11
12
2
134
8
10
11
12
5
6
7
5
6
8
7
9
9

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Ventilation system Pax Mistral iV12 • Installation and operating instructions Ventilation system Pax Mistral iV12 • Installation and operating instructions
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USER AND SAFETY INSTRUCTIONS USER AND SAFETY INSTRUCTIONS
Thermal accumulator insert (with reversible fan)
1
2
3
54
6
Fig. 3: Thermal accumulator insert iV12-Smart with fan
1 Thermal accumulator with insulation 4 Felt strip
2 Felt strip 5 Fan mains terminal
3 Reversible fan 6 Controller plug
Inner covers
3
1
2
4
3
1
2
4
Inner cover V-220x200 Inner cover R-D290
Fig. 4: Inner covers
1 Panel of inner cover
2 Spacer
3 Base plate of inner cover
4Dust lter (pollen lter optional)
Weather protection hoods
1
3
1
3
2
WSH-Smart WSH-09
Fig. 5: Weather protection hoods
1 Base plate of weather protection hood 3 Cover of weather protection hood
2 Fixing screw
Corner at tube
1
2
5
7
6
3
4
Fig. 6: Corner at tube
1 Fixing element 5 Rigid foam insert
2 Flat tube sliding sleeve 6 Wall sleeve opening
3 Flat tube 7 Wall mounting bracket
4 Sound insulation insert

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Ventilation system Pax Mistral iV12 • Installation and operating instructions Ventilation system Pax Mistral iV12 • Installation and operating instructions
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USER AND SAFETY INSTRUCTIONS USER AND SAFETY INSTRUCTIONS
Embrasure lattice
1
2
3
2
Fig. 7: Embrasure lattice
1 Louvres 3 Through hole
2 Drip rail
2.2 Function
The Pax iV12-Smart ventilation system is designed for the ventilation of living areas and bedrooms
in houses and apartment blocks, hotels and B&Bs, rooms in public facilities and work spaces in
ofces. It is suitable for installation in new builds and for retrotting in existing buildings.
It is installed in external walls.
NOTE
Disruption of the thermal insulation composite system.
Damage to the basic structure of the building!
► Observe specications in RAL installation guidelines.
Before starting work, a project should be available from which the number of ventilation units,
position of the ventilation units, ventilation principle (cross ventilation, single room ventilation,
extraction) and relevant controllers can be determined. The following basic rules apply to the
functioning of the ventilation units.
Paired operation of the ventilation units: The amount of supply air should correspond to the
amount of exhaust air. Every ventilation unit that is conveying supply air should be assigned to a
different ventilation unit that is simultaneously conveying exhaust air. The project can be used to
assign the starting order of the ventilation units that may need to be changed following start up of
the controllers. All of the ventilation units are set to "Exhaust air" when delivered.
Synchronisation: The synchronisation of the ventilation units must be ensured when using several
ventilation units controlled via several controllers (see installation and operating instructions for the
controller). All of the controllers should be connected via a mains fuse in the building distributor.
Cross ventilation: A decentralised ventilation system is based on the free movement of air
between individual pairs of ventilation units. This is why internal doors must not have an air tight
seal. Overow measures must be implemented: an air gap of approx. 10 mm below the door,
unscrewing door hinges by 5 mm, use of a ventilation grid or similar.
2.3 Control elements
ZR8-Standard/ZR8-Flat controller
1
2
3
4
Fig. 8: Front view of ZR8 controller
1 Frame 3 Rotary button
2 Control unit cover 4 Ventilation slots
The ZR8 controller is an electronic unit for controlling up to two Pax®iV12-Smart ventilation units.
What sets it apart is its easy installation and simple operating concept.
It allows control of the Pax iV12-Smart ventilation system in three modes:
• Heat recovery
• Ventilation
• Pause function (ZR8-Flat only) or
OFF-Mode (ZR8-Standard only)
ZR8-Standard and ZR8-Flat controllers differ in terms of airow at output level zero. Use of the
ZR8-Flat controller is recommended in rooms where the ventilation unit should not be switched off
in order to maintain ventilation to protect against moisture build-up.
Features
• Control of the ventilation unit in three operating modes.
• Innitely variable adjustment of the airow with rotary button.
• Marking of the airow at four output levels.
• LED display subject to the selected operatingmode.
• Synchronisation of multiple controllers.
• Integral thermal circuit breaker.
Versions
The ZR8 controller is available in two versions:
• ZR8-Standard
• ZR8-Flat
Detailed information can be found in the installation and operating instructions for the ZR8 controller.

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USER AND SAFETY INSTRUCTIONS USER AND SAFETY INSTRUCTIONS
ZR10-D-Standard/ZR10-D-Flat controller
5
1
2
3
4
Fig. 9: Front view of ZR10-D controller
1 Frame 4 Ventilation slots
2 Control unit cover 5 Blanking cover
3 Rotary button
The ZR10-D controller is an electronic unit for controlling up to four Pax®iV12-Smart
ventilation units. In terms of operation and functionality, it corresponds with the ZR8 controller.
It allows control of the Pax®iV12-Smart ventilation system in three modes:
• Heat recovery
• Ventilation
• Pause function (ZR10-D-Flat only) or
OFF-Mode (ZR10-D-Standard only)
The ZR10-D-Standard and ZR10-D-Flat controllers differ in terms of airow at output level
zero. Use of the ZR10D-Flatlat controller is recommended in rooms where the ventilation unit
should not be switched off in order to maintain ventilation to protect against moisture build-up.
Features
• Control of the ventilation unit in three operating modes.
• Innitely variable adjustment of the airow with rotary button.
• Marking of the airow at four output levels.
• LED display subject to the selected operatingmode.
• Synchronisation of multiple controllers.
• Integral thermal circuit breaker.
Versions
The ZR10-D controller is available in two versions:
• ZR10-D-Standard
• ZR10-D-Flat
Detailed information can be found in the installation and operating instructions for the ZR10-D
controller.
MZ-One®controller
1
2
4
3
5
inVENTer
MZ-0ne
01.06.2015 12:42
Fig. 10: Front view of MZ-One®controller
1 Display unit 5 Navigation arrow 
2Navigation arrow 6Navigation arrow 
3Navigation arrow 
The MZ-One®controller is an electronic control unit for controlling up to 16
Pax®iV12-Smart ventilation units. It comprises a programming unit and up to four
Clust-Air®modules, which can each be connected to up to four Pax®iV12-Smart ventilation units. As a
result, it provides separate ventilation for up to four different areas (zones) within a residential unit.
It offers excellent multi-zone control, easy installation, straightforward operation and a clear menu
structure. The software is available in two languages depending on your order.
For each zone, the operating mode and output level can be set by means of the 7-day timer or
manually. The controller can be used both as a base module and in conjunction with additional
sensors. Through an external interface, it can be connected to a potential-free oating contact or
integrated into an existing home automation system via an analogue input.
Features
• Intelligent Clust-Air®control for up to four different zones in one residential unit.
• Operated by means of touch-sensitive keys (navigation arrows).
• Backlit display unit.
• Control of the Pax®iV14 ventilation system in four operating modes.
• Output levels of each fan specied individually.
• Integral temperature-humidity sensor and room temperature display.
• Interface for external input or connection to an existing home automation system.
• Option of connecting other sensors (CO2sensor, VOC sensor or pressure monitor).
• Operating hours meter
• Filter change reminder
Detailed information can be found in the installation and operating instructions for the MZ-One®
controller.

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USER AND SAFETY INSTRUCTIONS USER AND SAFETY INSTRUCTIONS
3 Preparations prior to installation
3.1 Dimensions
Designation Depth/
Length (mm)
Width (mm) Height (mm) Dia. (mm)
Wall openings:
Opening for casing
(existing buildings) Wall thickness1) – – 180
Opening for casing
(new build) Wall thickness1) – – 180
Installation elements:
Wall sleeve 495 495 – – 160
Wall sleeve 745 745 – – 160
Weather protection hood
WSH-Smart 44 222 285 –
Weather protection hood
WSH-09 23 – 88 279 313 –
Corner 400 at tube 400 95 224 –
Corner 500 at tube 500 95 224 –
Embrasure lattice 10 104 281.5 –
Inner cover V-220x200 (square) 702) 224 204 –
Inner cover R-D290 (round) 702) – – 290
1) With insulation, interior plaster/exterior render 2) Open
3.2 Dimensioned drawings
Wall opening iV12-Smart with weather protection hood
Ø 180 y ≥ 250
145
140
180
2
1
5
3
6
4
Ø 180
136177
y ≥ 250
180
2
1
3
4
5
6
≥ 250
1)
≥ 250
1)
≥ 450
2)
WSH-Smart WSH-09
Fig. 11: Dimensioned drawing for wall opening
1 Wall opening for new builds 4 Outer edge of embrasure (ins. w. plaster)
2 Wall opening for existing buildings 5 Door/window frame
3 Position of weather protection hood 6 Bottom edge of embrasure (lintel)3)
Wall opening iV12-Smart with corner connection
≥ 155
1,3)
4
265 ≤ y ≤ 285
110110
1
Ø180
2
5
3
≥ 155
1,3)
4
365 ≤ y ≤ 385
110110
1
Ø180
2
5
3
Corner 4004) at tube Corner 5004) at tube
Fig. 12: Dimensioned drawing for wall opening with corner at tube
1 Wall opening 4 Outer edge of embrasure (ins. w. plaster)
2Position of corner at tube 5 Door/window frame
3 Bottom edge of embrasure (lintel)2)
1) Minimum distance to adjacent components on inner wall 3) Pay attention to insulation thickness and any roller blinds
2) Minimum distance to adjacent components on exterior wall 4) See Fig. 25 for installation conditions

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Ventilation system Pax Mistral iV12 • Installation and operating instructions Ventilation system Pax Mistral iV12 • Installation and operating instructions
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USER AND SAFETY INSTRUCTIONS USER AND SAFETY INSTRUCTIONS
Wall sleeve
495 (745)
∅160
1
2
Fig. 13: Dimensioned drawing for wall sleeve
1 Fixing element
2 Controller cable recess
Corner at tube
120
Ø162
400 (500)
55
95
224
239
12
4
3
5
Fig. 14: Dimensioned drawing for corner at tube
1 Fixing element 4 Rigid foam insert
2 Wall sleeve opening 5 Wall mounting bracket
3 Sound insulation insert
Weather protection hoods
279
313
23
88
44222
56
285
1
3
1
3
5
4
2
WSH-Smart WSH-09
Fig. 15: Dimensioned drawing for weather protection hoods
1 Base plate of weather protection hood 4 Top drip rail (WSH-Smart)
2 Fixing screws 5 Bottom drip rail (WSH-Smart)
3 Cover of weather protection hood
Embrasure lattice
10
104
281,5
1
28,1
231
2
2
4
5
3
Fig. 16: Dimensioned drawing for embrasure lattice
1 Top drip rail 4 Through hole
2 Louvres 5 Condensate drain
3 Bottom drip rail
281.5
28.1

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USER AND SAFETY INSTRUCTIONS USER AND SAFETY INSTRUCTIONS
Inner cover
ø290
70
55
70
224
204
1
2
1
2
Inner cover V-220x200 Inner cover R-D290
Fig. 17: Dimensioned drawing for inner cover
1 Panel of inner cover
2 Base plate of inner cover
4 Electrical connections
Connection for supply air mode/exhaust air mode
Start direction ‒exhaust air
Locking screws visible
Start direction ‒supply air
Plug rotated
Fig. 18: Start setting/plug position for exhaust / supply air
1 Fan 5 Controller connection
2 Plug-in strip 6 LED
3 Socket 7 Fan mains terminal, 3-pole
4 Controller plug, 3-pole
The running direction of the fan when the controller is started is subject to the alignment of the
plug locking screws.
Start-up arrangement
• In exhaust air mode, the locking screws of the green plug are pointing up and visible.
The LED is not on.
• In supply air mode, the green plug is rotated and the locking screws are pointing down.
The LED is on.
Plug connection assignment
Fig. 19: Plug connection assignment colour sequence
1 White round cable 2 Green round cable 3 Brown round cable