Xvent XHOUSE-300 User manual

1
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
OPERATING AND INSTALLATION MANUAL
CENTRAL RECUPERATION UNITS
XHOUSE

2
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
TABLE OF CONTENTS
1. General information .................................................................................................................................................................. 5
1.1. Introduction ................................................................................................................................................................................. 5
1.2. Warnings and Symbols ................................................................................................................................................................. 5
1.3. Use of the Xhouse unit ................................................................................................................................................................. 6
1.3.1. Unit Designation ..................................................................................................................................................................................... 6
1.3.2. Prohibited environment, use, installation of the Xhouse unit: ............................................................................................................. 6
1.4. Transport, Delivery Control, and Storage ..................................................................................................................................... 6
1.4.1. Transport ................................................................................................................................................................................................ 6
1.4.2. Delivery Inspection ................................................................................................................................................................................. 7
1.4.3. Storage .................................................................................................................................................................................................... 7
1.5. Contents of the Xhouse unit package ........................................................................................................................................... 7
1.6. Before Commencing the Installation ............................................................................................................................................ 7
1.7. Xhouse unit design ....................................................................................................................................................................... 7
1.7.1. Front plastic design cover (position 1) .................................................................................................................................................. 10
1.7.2. Unit body – fitting (position 2) ............................................................................................................................................................. 10
1.7.3. Hanger for hanging the unit on the wall (position 3) ........................................................................................................................... 10
1.7.4. Screw M6x12 with plastic head (position 4)......................................................................................................................................... 10
1.7.5. Reinforcement (position 5) ................................................................................................................................................................... 10
1.7.6. Unit cover (position 6) .......................................................................................................................................................................... 10
1.7.7. Bolt M6x30 (position 7) ........................................................................................................................................................................ 10
1.7.8. Filters (position 8) ................................................................................................................................................................................. 10
1.7.9. Filter caps (position 9)........................................................................................................................................................................... 10
1.7.10. Preheating (position 10) ....................................................................................................................................................................... 10
1.7.11. Fans (position 11) .................................................................................................................................................................................. 10
1.7.12. Recuperator (position 12) ..................................................................................................................................................................... 10
1.7.13. Bypass damper (position 13) ................................................................................................................................................................ 10
1.7.14. Controller (position 14) ......................................................................................................................................................................... 10
1.7.15. Control box (position 15) ...................................................................................................................................................................... 10
1.7.16. Main switch (position 16) ..................................................................................................................................................................... 10
1.7.17. Diaphragm multi-grommet (position 17) ............................................................................................................................................. 11
1.7.18. Screw-in grommet (position 18) ........................................................................................................................................................... 11
1.7.19. Supply cable (position 19) ..................................................................................................................................................................... 11
1.7.20. Condensate drain (position 20) ............................................................................................................................................................ 11
1.7.21. Connection sockets (position 21) .......................................................................................................................................................... 11
1.8. Main dimensions of the Xhouse unit ........................................................................................................................................... 11
2. Technical parameters of Xhouse units .................................................................................................................................... 12
2.1. Basic technical parameters ......................................................................................................................................................... 12
2.2. Acoustic Data .............................................................................................................................................................................. 13
2.3. Heat and moisture recovery efficiency ........................................................................................................................................ 15
3. Unit Installation ....................................................................................................................................................................... 16
3.1. General information, recommendations, and safety when installing the Xhouse unit ................................................................. 16
3.1.1. Electrical safety before installation of the unit .................................................................................................................................... 16
3.1.2. Unpacking the Xhouse unit .................................................................................................................................................................. 16
3.1.3. Unit Location ........................................................................................................................................................................................ 17

3
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
3.1.3.1. Location and operation of the unit in the area with a furnace (fire place) ......................................................................................... 17
3.1.3.2. Unit Location and Operation in the Area with an Air Conditioning Unit ............................................................................................ 17
3.1.4. Minimum installation distances ........................................................................................................................................................... 17
3.1.5. Installation Positions of the Xhouse unit ............................................................................................................................................. 18
3.2. Xhouse Unit Installation .............................................................................................................................................................. 18
3.2.1. Mounting equipment required to install the Xhouse unit - general requirements ............................................................................ 18
3.2.2. Positioning, installation of the unit on the wall................................................................................................................................... 19
3.2.3. Connection of the condensate drain - siphon ...................................................................................................................................... 19
3.2.3.1. Connecting the main condensate drain to the siphon ......................................................................................................................... 20
3.2.3.2. Connecting an additional condensate drain to the siphon - ventilation in air-conditioned rooms .................................................... 21
3.2.4. Connecting the air duct to the unit ...................................................................................................................................................... 22
3.3. Electrical Installation – Connection to Mains ............................................................................................................................... 22
3.3.1. General Information – Safety ............................................................................................................................................................... 22
3.3.2. Connection to Mains ............................................................................................................................................................................ 23
3.3.2.1. Connection of the Unit to the Wiring Box ............................................................................................................................................ 23
3.3.2.2. Connecting the Unit to the Electrical Outlet ........................................................................................................................................ 23
3.3.2.3. Recommended Xhouse unit protection ............................................................................................................................................... 24
3.3.3. Display of electrical parameters ........................................................................................................................................................... 24
4. Regulation ................................................................................................................................................................................ 24
4.1. General Information – Safety ...................................................................................................................................................... 24
4.2. Electrical Accessories to the Xhouse Unit .................................................................................................................................... 24
4.2.1. Connecting Electrical Accessories......................................................................................................................................................... 24
4.2.2. Connection of the CO2 (NL-ECO-CO2) and RH (NL-ECO-RH) sensors - AQS sensors (AQS CO2; AQS RH)) .......................................... 26
4.2.2.1. Connecting multiple AQS sensors ........................................................................................................................................................ 27
4.2.2.2. Unit functionality after connection of the AQS sensors ...................................................................................................................... 27
4.2.3. External Contact Connection – EXT 1 ................................................................................................................................................... 27
4.2.3.1. Technical Parameters of External Contact EXT1 .................................................................................................................................. 28
4.2.3.2. Functionality of the Unit when Controlled by External Contact EXT1 ................................................................................................. 28
4.2.4. External Contact Connection – BOOST (EXT2/FILTER) ......................................................................................................................... 28
4.2.4.1. Technical Parameters of External Contact - BOOST ............................................................................................................................. 28
4.2.4.2. BOOST regime functionality ................................................................................................................................................................. 28
4.2.5. Connection of the unit to the parent BMS system using the Modbus RTU protocol .......................................................................... 29
4.2.6. Connecting an external electric heater - (POSTHEATER) ..................................................................................................................... 29
4.3. Block diagram of the Xhouse unit wiring ..................................................................................................................................... 31
5. Commissioning ......................................................................................................................................................................... 32
5.1. Prior to first startup, check: ........................................................................................................................................................ 32
5.2. Activation – Basic Unit Commissioning ........................................................................................................................................ 32
5.3. Controller Operating Regimes ..................................................................................................................................................... 33
5.3.1. Sleep Regime – Regular Operating Regime .......................................................................................................................................... 33
5.3.2. Control Regime – 1 click........................................................................................................................................................................ 33
5.3.3. Unit Setting Regime – 2 clicks ............................................................................................................................................................... 33
5.4. Unit Control ................................................................................................................................................................................ 33
5.4.1. Control panel – controller .................................................................................................................................................................... 33
5.4.2. Description of the functions of the buttons and regulation .............................................................................................................. 34
5.4.3. Description of the ventilation power setting range ............................................................................................................................. 35

4
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
5.4.4. Ventilation Output Settings ................................................................................................................................................................. 35
5.4.5. Display of the LED Indicated Statuses on the Controller ..................................................................................................................... 35
5.4.6. Hidden Regulation Functions ............................................................................................................................................................... 36
5.4.7. Automatic Unit Control using AQS Sensors ......................................................................................................................................... 36
5.5. Customer Menu .......................................................................................................................................................................... 36
5.5.1. Service Menu Access ............................................................................................................................................................................ 36
5.5.2. Setting the air output for the BOOST regime - 1st screen ................................................................................................................... 37
5.5.3. BOOST regime run time setting - 2nd screen ....................................................................................................................................... 37
5.5.4. Fan distribution setting - 3rd screen .................................................................................................................................................... 38
6. Replacing Filters ....................................................................................................................................................................... 39
6.1. Filter Removal ............................................................................................................................................................................. 39
6.2. Filter Inserting............................................................................................................................................................................. 39
6.3. Reset filter countdown ............................................................................................................................................................... 40
7.1. Inspection - cleaning the exterior of the unit ............................................................................................................................... 41
7.1.1. Visual Inspection of the Unit Casing..................................................................................................................................................... 41
7.1.2. Visual Inspection of the Supply Cable .................................................................................................................................................. 41
7.2. Inspection - Cleaning of the unit interior ..................................................................................................................................... 41
7.2.1. Cleaning the Fan Chamber and Fans .................................................................................................................................................... 42
7.2.2. Visual Inspection – Cleaning of the preheater, if fitted with the unit (XH1-030-ECxxxxP…) ................................................................ 43
7.2.3. Visual Inspection and Cleaning of the Heat Recovery Exchanger ........................................................................................................ 43
7.2.4. Re-installation of Internal Components into the Unit ......................................................................................................................... 43
8. Servicing ................................................................................................................................................................................... 45
8.1. Error Messages – Troubleshooting Procedure ............................................................................................................................. 45
8.2. Failure persists ............................................................................................................................................................................ 46
9. Final Decommissioning, Dismantling, and Disposal................................................................................................................ 46
10. Warranty ............................................................................................................................................................................. 46
11. In Conclusion ....................................................................................................................................................................... 47

5
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
1. General information
1.1. Introduction
- This document “Operating and Installation Manual” is intended for Xhouse central heat recovery units
(hereinafter the unit only). At the same time, it is superior to the brief manual placed directly on the unit,
so-called “Quick Manual”.
- Installation and connection of the unit may only be performed by a trained person with the appropriate
authorisation for the connection of electrical equipment who has the appropriate tools and resources
at his disposal. All the instructions and recommendations provided in this manual must be observed
during installation.
- Detailed familiarisation with this document is important for the unit's correct and safe installation and
functioning. Failure to comply with the conditions set out in this document may lead to the unit's
malfunction.
- Please, retain this unit installation manual for future reference after reading it thoroughly.
- It is forbidden to interfere in any way with the unit's internal connection other than as specified in this
manual. Due to the continuous development of our products, we reserve the right to change this manual
without prior notice.
- Children and persons with reduced physical, sensory, or mental capabilities, or lack of experience and
knowledge, may use the unit only under supervision or if they were instructed on the unit's use in a safe
way and understand potential risks.
- Children may not play with the appliance.
1.2. Warnings and Symbols
- The following names and symbols shall be used in the operating manual, on the packaging, and on the
product for particularly important information:
Warning,pay attention to all the risk alerts and warnings, as well as preventive measure instructions.
Danger, observe all the warnings; there is a risk of electric shock or a situation, which can result in death
or serious injury, if not prevented.
Reference to other manual sections
Caution – Read Operating Instructions prior to use
Protective conductor connection
Notification of the correct position when handling and storing the packaging.
Notification of the need for protection against moisture. The product – packaging marked with this
symbol must not be transported on open vehicles and stored in roofless buildings and on the ground
without a pad.
Notification of the content – product’s fragility and the need for careful handling of the packaged
product.
Notification of the need for protection against moisture and of the fragility of the product inside the
packaging.

6
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
1.3. Use of the Xhouse unit
1.3.1. Unit Designation
- The Xhouse unit is an air-handling unit using ventilation technology with heat recovery (counter-current
heat exchanger) and moisture recovery (enthalpy exchanger) with the possibility of connecting an
independent air heater (not included in the unit). The unit can be operated in two ventilation regimes:
o Manual - forced ventilation. The unit ventilates according to the power set by the user
o Automatic - ventilation according to air quality sensors (AQS). Air quality sensors CO2 and RH can be
connected to the unit (accessories “NL-ECO-CO2” and “NL-ECO-RH”), which allow the unit to
ventilate only when necessary. If more sensors are required, up to 8 CO2 and 8 RH sensors can be
connected using the “PRO-SUM-08” accessory. The user only sets the power of the unit (flow rate)
according to the required air exchange (number of people) in the ventilated and the unit ventilates
according to the actual need.
- The unit can also be connected and controlled remotely by the BMS system using the modbus RTU
communication protocol. Addressed in separate chapter 4.2.5.
- The unit can be used for air handling systems with a maximum requirement for a nominal flow of approx.
300 m3/h (depending on the type).
- The unit is designed for vertical wall mounting only, so that fresh air supply can be provided.
- The unit is intended for continuous operation with the possibility of using the manual operation regime
(ventilates continuously) or the automatic operation regime (ventilates as needed – required by the air
quality sensors – AQS).
- The unit is intended for indoor covered and dry areas with a room temperature of +5 °C to +30 °C and the
maximum relative humidity of 70%, non-condensing.
- The maximum working altitude of the unit is 2,000 m above sea level.
- The temperature of supplied fresh air from the outside may be between -20 °C and +40 °C (applies to
the version with preheating). If the temperature of the supplied air is lower than -20 °C, the unit may be
switched off automatically in order to protect it from possible damage.
1.3.2. Prohibited environment, use, installation of the Xhouse unit:
- Exhausting burning or glowing substances!
- Exhausting readily flammable or explosive gases,
- Exhausting aggressive media,
- Exhausting liquids of any kind,
- In an environment with an increased incidence or risk of explosion, flammable substances, and
increased dust and/or air containing other harmful impurities,
- In an environment with higher condensation humidity, such as: bathrooms, swimming pools, saunas,
etc.,
- The unit must not be installed just below the electrical socket or wiring box,
- Neither the manufacturer nor the supplier is liable for damage caused by improper use of the units (e.g.:
drying out of new buildings). The user bears the risk.
1.4. Transport, Delivery Control, and Storage
1.4.1. Transport
- During transport, keep the product in the position indicated by the symbol on the packaging.
- The packaging must not be loaded with a weight higher than that permitted by the manufacturer.
- The packaging must not be exposed to ambient effects.
- The transport air temperature must range between -25 to 55 °C,
- The transport relative humidity must range between 10 % and 90 % non-condensing.
- Use adequate tools to prevent damage to the goods and damage to the health and safety of persons.
- In the case of further transport without original packaging or with changed original packaging, it must be
ensured that the equipment is optimally secured and protected against damage.

7
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
1.4.2. Delivery Inspection
- Before starting the installation and before unpacking the unit from the box, it is necessary to check for any
traces of damage on the packaging. If the packaging is damaged, write a record of the damage and contact
your carrier, please.
- Check if you have received the product actually ordered by you. After unpacking, check that the unit and
other components are in order. Please, report any discrepancy with the order to the supplier immediately.
If an order complaint is not made immediately after delivery, it will not be considered later.
1.4.3. Storage
- If you do not plan to install the unit immediately after purchase, it must be stored in an indoor, non-
condensing environment at temperatures ranging between +5 to +40 °C. If the product is transported at
temperatures below 0 °C, it must be put into the working environment where it will be installed for at
least 2 hours after unpacking.
1.5. Contents of the Xhouse unit package
- Xhouse unit with design cover 1x
- Siphon hose Ø18/14-1000 mm for condensate drainage 1x
- 2.5x120tie strap 2x
- Quick manual + safety data sheet 1x
- Serial plate 1x
- Energy label 1x
1.6. Before Commencing the Installation
- Before commencing the installation, we recommend that you attach the serial plate (by default, supplied
with the package) to the operating documentation (e.g.: equipment operating book, etc.), which is
subsequently kept for a later maintenance records and servicing.
- Check that there are no electrical or other lines (e.g. gas, water, etc.) at the point of installation of the
unit on the wall that could be damaged during installation.
- Ensure that the installation of the unit, including the openings in the wall for the passage of the
connection pipe, does not compromise the building's structure and meets all the legislative safety
requirements.
- Check the solution for draining the unit's condensate into the sewer system or in another way that ensures
smooth condensate drainage
Technical Parameters
1.7. Xhouse unit design
1
2
3
4
18
17
16
Fig. 1

8
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
5x
6
7
5
8
9
Fig. 2
5
8
19
Fig. 3

9
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
10
11
12
14
13
20
21
15
Fig. 4
Fig. 5

10
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
1.7.1. Front plastic design cover (position 1)
- Plastic cover with the thickness of 2 mm made of ABS material. Standard colour RAL 9003 (white)
1.7.2. Unit body – fitting (position 2)
- The body of the unit is made of black pressed EPP plastic (expanded polypropylene). It ensures the
accuracy and repeatability of the installation of components. The material itself is an advanced technical
material with a unique combination of properties, such as strength at low weight, rebound elasticity,
thermal insulation, chemical resistance, sound insulation, and recyclability.
1.7.3. Hanger for hanging the unit on the wall (position 3)
- The hanger is made of galvanized steel sheet 1.5 mm thick. The hanger is powder-coated to prevent
corrosion with RAL 9005
1.7.4. Screw M6x12 with plastic head (position 4)
- The screws are used to manually secure the front plastic cover (position 1)
1.7.5. Reinforcement (position 5)
- Metal reinforcements are made of a 2 mm thick steel sheet with anti-corrosion powder paint RAL 9005.
1.7.6. Unit cover (position 6)
- The unit cover is made of black pressed EPP plastic (expanded polypropylene). It ensures the accuracy and
repeatability of the installation of components. The material itself is an advanced technical material with
a unique combination of properties, such as strength at low weight, rebound elasticity, thermal insulation,
chemical resistance, sound insulation, and recyclability.
1.7.7. Bolt M6x30 (position 7)
- Galvanised M6x30 hex head bolt.
1.7.8. Filters (position 8)
- M5 filters (ISO COARSE 70%) are included in the delivery. F7 filters (ISO ePM1 60%) can be supplied upon
request. Evaluation of filters per ČSN EN ISO 16890.
1.7.9. Filter caps (position 9)
- Filter caps are used to seal the filters in the unit cover. They are made of black pressed EPP plastic
(expanded polypropylene).
1.7.10. Preheating (position 10)
- Preheating is used to heat the air before it enters the recuperator. It ensures correct ventilation
functionality at sub-zero temperatures – anti-freeze protection. It is controlled automatically, based on
sensors and regulation.
1.7.11. Fans (position 11)
- The plastic radiant fan with EC motor from leading European manufacturers ensures smooth operation,
minimal power consumption, and long service life of the unit.
1.7.12. Recuperator (position 12)
- The countercurrent recuperator provides heat recovery with the maximum efficiency (XR1-xxx-ECxxHR...).
Its version with enthalpy exchanger (XR1-xxx-ECxxER...), it also allows transfer of moisture back to the
ventilated area.
1.7.13. Bypass damper (position 13)
- The bypass damper is made of aluminium insulated slats enclosed in a galvanized metal frame. The
dampers are rotated by a 24VDC actuator. The bypass damper is used to switch the air flow between the
recuperator and the bypass of the heat exchanger. It is used especially in the summer months to cool the
served area with cool morning air. The units are equipped with a bypass damper according to the type
(XH1-xxx-ECxxxxxxxx-1xx). Other units without mechanical bypass are equipped with electronic bypass
(XH1-xxx-ECxxxxxxxx-0xx)
1.7.14. Controller (position 14)
- The integrated touch controller on the control box is used to control the entire unit.
1.7.15. Control box (position 15)
- It ensures interconnection of the individual components and also serves for the customer's connection.
1.7.16. Main switch (position 16)
- 1 - pole main switch is used to connect/disconnect the unit from the mains.

11
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
1.7.17. Diaphragm multi-grommet (position 17)
- The multi-grommet is used to connect external accessories to the unit while maintaining ingress
protection (IP)
1.7.18. Screw-in grommet (position 18)
- It is designed for the passage of a communication cable (e.g.: UTP) to connect the unit to the parent BMS
system
1.7.19. Supply cable (position 19)
- It connects the unit and the connection point from the mains. Cable length approx. 1 m. The CYSY 3x1.5
mm2 cable type with stripped and marked ends of 50 mm.
1.7.20. Condensate drain (position 20)
- Plastic condensate drain made of ABS material. It is used to drain condensate from the unit.
1.7.21. Connection sockets (position 21)
- The Ø 125 mm connection sockets are made of 0.5 mm thick galvanized sheet metal. To increase corrosion
resistance, they are powder coated with RAL 9005. For better sealing of the connected pipes, the sockets
are fitted with a rubber sealing bit that can be removed if necessary (e.g. for flexible piping). The lower
part of the sockets is coated with 6 mm thick butyl rubber non-absorbent insulation material to prevent
temperature bridges between the socket and the connected piping.
1.8. Main dimensions of the Xhouse unit
Fig. 6

12
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
2. Technical parameters of Xhouse units
2.1. Basic technical parameters
- Basic technical parameters – Xhouse-300 (XH1-030-ECS0HRxAS-xA0) – heat exchanger
- Basic technical parameters - Xhouse-300 (XH1-030-ECS0ERxAS-xA0) - enthalpy exchanger
EC Declaration of Conformity – the current and full version of the EC Declaration of Conformity can be found on our
website www.xvent.cz in the “Download Documents” section for the Xhouse product
Tab. 1
Tab. 2

13
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
Tab. 3
Tab. 4
Tab. 5
Tab. 6
2.2. Acoustic Data
- XH1-030-ECS0HRxAS-0A0 - heat exchanger, electronic bypass
o unit radiates to the interior (inside the room)
o unit radiates into the duct - nominal air output
- XH1-030-ECS0HRxAS-1A0 - heat exchanger, mechanical bypass
o unit radiates to the interior (inside the room)
o unit radiates into the duct - nominal air output

14
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
Tab. 8
Tab. 9
Tab. 7
Tab. 10
- XH1-030-ECS0ERxAS-0A0 - enthalpy exchanger, electronic bypass
o unit radiates to the interior (inside the room)
o unit radiates into the duct - nominal air output
- XH1-030-ECS0ERxAS-1A0 - enthalpy exchanger, mechanical bypass
o unit radiates to the interior (inside the room)
o unit radiates into the duct - nominal air output

15
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
Tab. 11
Tab. 12
2.3. Heat and moisture recovery efficiency
- XH1-030-ECS0HRxAS-xA0 - heat exchanger
- XH1-030-ECS0ERxAS-xA0 - enthalpy exchanger

16
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
Please, return all the not needed packaging to the appropriate recycling points where
they will be disposed of professionally. Only packaging recycled in this way can be
reused properly and returned to utility.
Fig. 8
3. Unit Installation
3.1. General information, recommendations, and safety when installing the Xhouse unit
3.1.1. Electrical safety before installation of the unit
- Before starting any installation work, make sure that the wiring box or mains socket that you want to
use to connect the unit is equipped with a protective (green-yellow) wire or contact (pin).
- If you use a wiring box to electrically connect the unit, you must turn off the power and secure the power
supply against accidental turn on.
- Check that the electrical connection point (wiring box, outlet) meets the unit's power supply requirements
(voltage, current, etc.) specified on the unit's serial plate. The electrical quantities necessary for the unit's
operation can be found in Section 3.3.3. “Display of electrical parameters”
3.1.2. Unpacking the Xhouse unit
- Always unpack the unit in a sufficiently large area to allow for removing the unit from the packaging.
- Never unpack the entire unit from the packaging, the unpacking of the unit must be gradual, as specified
in this manual according to the installation work in progress (protection of the unit from damage and dust
generated during installation)
- Follow these steps:
1
2
3
Fig. 7

17
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
Fig. 9
3.1.3. Unit Location
- When selecting a location for the installation of the unit, always consider the layout of the building
within the overall HVAC system (e.g.: location of dampers, supply and exhaust ducts, etc.). Consult an
HVAC designer or a person knowledgeable in the field for the proper design of the entire HVAC system.
The manufacturer is in no way responsible for the design of the ventilation system.
- The unit is to be installed in indoor covered and dry areas with a room temperature of +5 °C to +30 °C and
with maximum relative humidity of 70% non-condensing.
- Consider the location of the unit indoor away from surrounding objects in relation to the recommended
clearances from the unit (e.g.: filter changes, opening the unit - servicing) as given in chapter 3.1.4.
Minimum installation distances
- Check your options for connecting the condensate outlet to the waste piping.
3.1.3.1. Location and operation of the unit in the area with a furnace (fire place)
- If the air ducts are located in rooms with a furnace, you can set the fan distribution in the customer menu
(more air is supplied than exhausted). The fan balancing cannot replace the separate air supply to the
heater in any way due to the possibility of controlling by AQS sensors.
- For proper operation of the furnace and the unit, consult the location with the chimney sweep. Otherwise,
the unit may malfunction.
3.1.3.2. Unit Location and Operation in the Area with an Air Conditioning Unit
- When operating the unit during the summer months and using the air conditioner in a ventilated area,
condensation may form inside the unit in the opposite supply branch. In this case, it is necessary to connect
a siphon and subsequent condensate drain to the supply branch.
- The unit is equipped with a plugged outlet for siphon connection as standard. For more information see
Chapter 3.2.3.
- For trouble-free operation, we recommend installing a unit equipped with an enthalpy exchanger (XH1-
030-ECS0ER...).
3.1.4. Minimum installation distances
- Distances from fixed objects:
- The unit must be installed in such a way that the direction of air flow through the unit itself is the same as
the air flow in the air handling system.
- Failure to observe the specified clearances may not work properly and may damage the fan, increase noise,
or prevent service access to the unit.

18
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
Fig. 10
3.1.5. Installation Positions of the Xhouse unit
- All the Xhouse unit types can be installed in the following position:
- Any other position is prohibited
3.2. Xhouse Unit Installation
- The unit must be operated in enclosed and dry areas with room temperature ranging between +5 °C and
+30 °C.
- The recovery unit must be installed in accordance with the general and local safety regulations.
- The recovery unit may be installed, connected, commissioned, and repaired by a person with adequate
education, experience, and knowledge of applicable regulations, standards, and potential risks and
hazards, or by a properly trained service technician.
- Failure to follow the installation procedure may result in the unit's damage or malfunction, or potential
harm to the health and property of the user.
- Take special care when installing the condensate drain via a condensation sump (not a part of the
supply) into the sewerage piping. The unit manufacturer accepts no liability for damage caused by
incorrect installation of the condensate sump, drain piping, and other peripherals required for their
operation.
3.2.1. Mounting equipment required to install the Xhouse unit - general requirements
- Prepare mounting aids (not included) to install the unit:
o Anchoring elements (e.g. dowels, dowel screws) 2 pcs
- Select the anchoring material according to the wall construction, unit weight, and the weight of the
connected peripherals.
- The unit variant weights are given in item 2.1. “Basic technical parameters”
- The unit dimensions are given in item 1.8. “Main dimensions of the Xhouse unit”

19
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
3.2.2. Positioning, installation of the unit on the wall
- Select the appropriate anchoring material (not included) for the given wall. To use the unit's hanging
system (keyhole), choose a screw with max. Ø7 mm with the maximum head diameter up to 13 mm.
- Use a spirit level to measure the anchor holes for attaching the unit to the wall. Alternatively, place the
unit on the wall with a spirit level, level it, and mark the mounting holes for anchoring the unit.
- The wall into which you anchor the unit should always be sufficiently strong and cohesive. If necessary,
contact a specialist in the field - structural engineer.
- Drill holes in the wall and partially screw in the screws for hanging the unit.
- Mount the unit onto the prepared anchor bolts.
- Tighten the anchor bolts adequately to secure the unit against any undesired movement - falling.
3.2.3. Connection of the condensate drain - siphon
- The unit must always be fitted with a siphon (included in the delivery) connected to a sewer system.
- Always check the watering of the siphon and the condensate drainage before starting up for the first time
or after shutting down the unit (the unit has been switched off for a long time).
- The unit is equipped with two condensation drains:
o Main drain - must always be plugged, designed to drain condensate from the unit as standard. The
outlet is open as standard.
Fig. 11
Fig. 12

20
Version 1
–
GBR
(25/
10
/2022)
D
-
502
-
02
87
o Additional drain - used to drain condensate from the supply branch - ventilated area with air
conditioning. The outlet is blinded as standard. If an additional drain is used, both outlets must be
connected.
- The siphon must always be watered, well connected, and sealed to the unit drain, otherwise there is a
risk of condensate not draining from the unit and thus condensate accumulating in the unit with a
possible overflow of the condensate tray. This can subsequently lead to property damage.
3.2.3.1. Connecting the main condensate drain to the siphon
- Remove the PVC siphon hose Ø 18/14- 1000 mm and 2 pcs of 2.5x120 mm tie strap from the unit package
- Create a 150 mm diameter loop, approximately halfway along the siphon hose.
- Secure the loop with 1 piece of tie strap, against any undesired movement, but at the same time so as not
to deform (break) the siphon hose
- Pay particular attention to maintaining a loop diameter of 150 mm and using adequate force when
tightening the tie strap. If these requirements are not met, there is a risk of condensate not draining
from the unit and thus condensate accumulating in the unit with a possible overflow of the condensate
pan. This can subsequently lead to damage to the user's property and health.
- Water the siphon - pour water into the siphon from the drain connection side of the unit until water flows
out the other side of the siphon.
- Fit the fabricated siphon to the main drain.
- Orient the formed siphon loop so that it functions as a water trap.
Open as standard
Closed as standard
Min 150 mm
Min 150 mm
Water level
Fig. 13
Fig. 14
Fig. 15