Vallox Pureo TX 500 User manual

Manual
Model
Vallox Pureo TX 500
Vallox Pureo TX 900
Vallox Pureo TX 1300
Vallox Pureo TX 1800
Document
D9674
Valid from
15.05.2021
Updated
11.05.2021
Air handling units
MANUAL

2
CONTENTS
INTRODUCTION
INTRODUCTION............................... . . 2
Safety ...................................................... . 3
Installation ............................................. . . . . 3
Guarantee .................................................. . 3
Intended use ................................................ . 3
Disposal of the air handling unit ............................... . 3
Safety signs used in the instructions .......................... . 4
Regulations - Guidelines ..................................... . 4
Field of application - Intended use ............................. . 5
Main parts .................................................. . 6
Vallox Pureo TX 500/900 ............................... . . . . 6
Main parts .................................................. . 7
Vallox Pureo TX 1300/1800 .............................. . . . . 7
Contents of the delivery ...................................... . 8
Package dimensions and weights ............................. . 8
Storage..................................................... . 8
Transportation and hauling ................................... . 9
Disassembly and re-assembly................................. 10
INSTALLATION.................................. . 11
Mechanical assembly ........................................ . 11
Assembly area.......................................... . . . . 11
Levelling the unit ............................................ 12
Mounting the door handles ................................... 12
Condensate outlet ........................................... 13
Module assembly Vallox Pureo TX 1300/1800 .................. 14
Flange connection and adapters ......................... . . . 18
Air ducts, Ventilation circuit ................................... 18
Electrical connections........................................ 19
Power supply connections ................................... 20
Mounting the main switch..................................... 21
Controller connection ........................................ 21
Dimensions and duct outlets................................. 22
Vallox Pureo TX 500 .................................... . . . 22
Vallox Pureo TX 900 .................................... . . . 23
Vallox Pureo TX 1300 ................................... . . . 24
Vallox Pureo TX 1800 ................................... . . . 25
Performance curves......................................... 25
MAINTENANCE ............................... 26
Service and maintenance.................................... 26
Maintenance plan........................................... 26
Service and maintenance of the cross counterflow
heat exchanger.............................................. 27
Dismantling ................................................. 27
Cleaning ................................................... 28
Filter change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Service and maintenance of the fans.......................... 30
Cleaning the condensate tray ................................ 32
Cleaning the housing ....................................... 32
TECHNICAL SPECIFICATIONS ... 33
Performance data and technical data ......................... 33
Electrical connections (Terminal block)........................ 34
Vallox Pureo TX 500 .................................... . . .34
Vallox Pureo TX 900 .................................... . . .37
Vallox Pureo TX 1300 ................................... . . .40
Vallox Pureo TX 1800 ................................... . . .43
Electrical connections (Internal) .............................. 46
Vallox Pureo TX 500 .................................... . . .46
Vallox Pureo TX 900 .................................... . . .48
Vallox Pureo TX 1300 ................................... . . 50
Vallox Pureo TX 1800 ................................... . . .52
Exploded view and parts list ................................. 54
Vallox Pureo TX 500 .................................... . . .54
Vallox Pureo TX 900 .................................... . . .55
Vallox Pureo TX 1300 ................................... . . .56
Vallox Pureo TX 1800 ................................... . . .57
Conformity certificates ...................................... 58

3© Vallox Oy - All rights reserved
SAFETY
Safe and appropriate handling requires knowledge of the basic safety
regulations, and of the intended use of the ventilation system. Please
read this manual before operating the air handling unit and keep it for
later reference. If you lose this manual, it can be downloaded from our
website.
This user manual contains all the information necessary for the safe
operation of the system. All persons who operate and maintain
the ventilation system must follow the instructions provided in this
manual. Furthermore, all local accident prevention regulations must be
observed.
Installation
Installation and setup should only be carried out by a qualified expert.
Electrical installations and connections must only be carried out by an
electrician and in compliance with local regulations.
GUARANTEE
The guarantee and liability exclude damage resulting from:
• Inappropriate use of the ventilation system or the control unit
• Incorrect or inappropriate installation, setup, or use
• Neglect of instructions concerning transportation, installation, use,
or maintenance
• Structural or electronic modifications, or changes made to the
software
INTENDED USE
All Vallox air handling units have been designed to provide appropriate
and continuous ventilation so as to present no threat to the health of
people and to maintain the structures of the building in good condition.
DISPOSAL OF THE AIR HANDLING UNIT
Do not dispose of electronic devices with household waste. Follow
local laws and regulations on safe and ecological disposal of the
product.
Ensure that
• the components are separated and sorted according to material
types.
NOTE
For further information,
go to www.vallox.com
INTRODUCTION
WARNING
The unit is not intended
to be used by children
under the age of 8
or by persons with
reduced sensory,
physical or mental
capabilities, or whose
lack of knowledge
and experience does
not ensure the safe
operation of the unit.
Such persons can
use the unit under
supervision, or
by following the
instructions of someone
who is responsible for
their safety.
Children must be
supervised and not be
allowed to play with the
device.
DANGER
The electrical
connection must be
fully isolated from the
mains power supply
until final assembly!

4
SAFETY SIGNS USED IN THE INSTRUCTIONS
REGULATIONS  GUIDELINES
If the product is installed correctly and used in accordance with its
intended purpose, it conforms to all applicable provisions and CE
guidelines that were valid at the time of its manufacture. Vallox Pureo
TX air handling units are compliant with the applicable ErP Directive
2018 (Ecodesign Directive).
DANGER
Indicates a hazard that
will result in death or
serious injury if not
avoided.
WARNING
Indicates a hazard that
can result in death or
serious injury if not
avoided.
IMPORTANT
Indicates a hazard that
can result in damage
to property or a loss of
data if not avoided.
CAUTION
Indicates a hazard that
can result in minor or
moderate injury if not
avoided.
NOTE
Indicates essential
information about the
product.
TIP
Provides additional
information about the
use of the product and
its benefits.
INTRODUCTION

5© Vallox Oy - All rights reserved
INTRODUCTION
FIELD OF APPLICATION 
INTENDED USE
Vallox Pureo TX air handling units are energy-saving, fully automated,
low-noise and ready-to-operate ventilation units with heat recovery.
Vallox Pureo TX is available in four dierent models that meet the
volume flow rate requirement of up to 1800 dm/s. There is an ePM
60% class filter on the outdoor air side and an ePM 60% class filter on
the extract air side as standard.
Vallox Pureo TX units are equipped with highly energy ecient, low-
noise, and power-saving fans. Fans that are equipped with EC motors
can be operated by using three fixed speeds, or alternatively by using
the integrated smart controller with the help of air quality sensors.
Vallox Pureo TX units are equipped with cross counterflow heat
exchangers, in which the heat contained in the extract air is recovered
before the air is blown outdoors through the plates. The process is
completed so that the air flows remain separate. Depending on the
operating conditions, more than 80% of the heat contained in the
extract air is recovered before the air is blown outdoors.
Supply air is transmitted to the primary areas (where supply air is
needed) via the duct system. Used air is extracted from the secondary
areas (such as social facilities, toilets, and showers). It flows through
the duct network back to the ventilation unit, where heat is recovered
before the air is discharged outdoors through the exhaust air duct.
Vallox Pureo TX units are only intended for the handling of air and for
performing the following tasks:
• Filtering normally polluted air
• Heating and/or cooling of the air (with accessories)
• Heat recovery
• A combination of the above functions
The intended use also includes the observance of the operating
manual, the manufacturer‘s instructions for individual components, and
the inspection and maintenance intervals stipulated by Vallox.
Vallox Pureo TX units with the standard equipment are designed to be
installed and used in frost-free premises (room temperature > 0°C). The
availability of a frost-free condensate outlet must be ensured on site.
The corrosion resistance class of the housing is C4 in accordance with
ISO 12944. The unit can be used under these conditions.
Application limits:
• Ambient temperature 0-50°C
• Humidity (max.) 95% RH
IMPORTANT
Material damage due to
the unit freezing!
NOTE
Any use other than
the intended use is
prohibited!

6
INTRODUCTION
MAIN PARTS
Vallox Pureo TX 500/900
Extract air filter
1
Supply air filter
2
Postheater (liquid)
3
Supply air fan
4
Exhaust air fan
5
Counter flow heat exchanger
6
Condensation Outlet Pipe
Bypass damper
Pressure transmitter
1
2
3
4
5
6
7
8
9
7
8
9

7© Vallox Oy - All rights reserved
INTRODUCTION
MAIN PARTS
Vallox Pureo TX 1300/1800
Extract air filter
1
Supply air filter
2
Postheater (liquid)
3
Supply air fan
4
Exhaust air fan
5
Counter flow heat exchanger
6
Condensation Outlet Pipe
Bypass damper
Pressure transmitter
7
8
9
1
2
3
4
5
6
7
8
9

8
INTRODUCTION
CONTENTS OF THE DELIVERY
The delivery contains one of the following unit types:
• Vallox Pureo TX 500
• Vallox Pureo TX 900
• Vallox Pureo TX 1300
• Vallox Pureo TX 1800
The scope of the delivery also includes:
NOTE
Check the delivery
immediately on receipt
for accuracy and
damage. If damaged,
notify the carrier
immediately. In case of
delayed notification, any
claims may be void.
STORAGE
When the unit is stored for a prolonged time, the following steps need
to be taken to avoid damage: Protection by dry, airtight, and dust-proof
packaging (a plastic bag with desiccant and humidity indicators). The
storage place must be waterproof, vibration-free, and have an even
temperature (ambient temperature limit: min. 0°C /max. +40°C). Damage
due to improper transportation, storage, or setup must be verified and is
not covered by the warranty.
PACKAGE DIMENSIONS AND WEIGHTS
The dimensions and weight of each unit type are shown in the following
table. Vallox Pureo TX 1300 and 1800 units are delivered in three parts.
PACKAGE DIMENSIONS AND WEIGHTS
No. of
packages
Package 1
dimensions (mm)
(w x h x d)
Package 1
weight (kg)
Package 2
dimensions (mm)
(w x h x d)
Package 2
weight (kg)
Package 3
dimensions (mm)
(w x h x d)
Package
weight 3 (kg)
Vallox Pureo TX 500 1 1992 x 1993 x 960 403 - - - -
Vallox Pureo TX 900 1 2332 x 2370 x 98 532 - - - -
Vallox Pureo TX 1300 3 2260 x 654 x 1620 221 2260 x 1612 x 1620 488 2260 x 654 x 1620 207
Vallox Pureo TX 1800 3 2260 x 654 x 1880 240 2260 x 1612 x 1880 510 2260 x 654 x 1880 228
IMPORTANT
Before ooading the
units, ensure that the
means of transport and
lifting have sucient
capacity for the
required weight.
The condensate outlets, door handles, and mounting brackets that are
included in the scope of the delivery are located inside the unit.
SCOPE OF DELIVERY
M6x20 screw
DPT mounting
M8x30 screw
Module
assembly
M10x25 screw
Base frame
connection
DPT mounting
sheet metal
Condensate
drain pipe
(set)
Main switch
with screws
Door handle U type
manometer
Vallox Pureo TX 500 2 1 2 1 16 2
Vallox Pureo TX 900 2 1 2 1 16 2
Vallox Pureo TX 1300 2 24 8 1 2 1 18 2
Vallox Pureo TX 1800 2 24 8 1 2 1 18 2

9© Vallox Oy - All rights reserved
INTRODUCTION
TRANSPORTATION AND HAULING
Transportation must be carried out carefully. It is recommended to leave
the unit in the original packaging until installation to avoid possible
damage and contamination. Transportation and hauling must be carried
out by trained and experienced personnel and the necessary safety
precautions should be taken to prevent the overturning and slipping of
the unit.
Due to the high centre of gravity, the unit can tip over and cause
personal injury and material damage. When transporting the unit,
carefully observe its behaviour and stay clear of any possible
hazardous areas.
The unit can be hauled using a forklift, a pallet truck, or a crane. It
should be ensured that the weight is evenly distributed when hauling
the unit.
DANGER
Personal injury and/or material damage due to the unit tipping
over!
DANGER
Personal injury and/or
material damage due to
incorrect transportation
and hauling!
It must be ensured that
the means of transport
and lifting meet the
capacity requirements
related to weight and
size. Make sure that
the unit is firmly seated
before lifting it.
DANGER
Danger due to
overhead loads!
The lifting gear, units,
cables, or the tackle
could be faulty or
damaged. Never stand
beneath suspended
loads.
Before hauling the unit, ensure that the forks of the forklift are long
enough to lift more than the entire underside of the unit. Lift the unit
slowly.
DANGER
Personal injury and/or material damage due to the unit falling
from the forklift!

10
INTRODUCTION
If the unit is transported with a crane, the holes in the base frame
designed for transportation must be used.
1. Lead the transportation rods through the holes in the base frame.
2. Secure the transportation rods with screws.
3. Lead a chain or rope to the end of the transportation rods.
4. Spacers are used to prevent damage that could be caused to the
unit by chains or ropes.
DISASSEMBLY AND REASSEMBLY
The disassembly and re-assembly of the unit are not part of routine
maintenance. The disassembly and re-assembly of the unit may only
be carried out by a qualified specialist. Ensure that the unit is voltage-
free and isolated from the mains power supply before disassembly or
re-assembly! Earth and short circuit the unit. Shield neighbouring live
components.
WARNING
Risk of personal injury and material damage! An electric shock
can result in death or serious injury.
The following must be taken into account when installing heating and
cooling coils:
• Close all hydraulic stop valves.
• Isolate all connections and ensure that the unit is leak-free with
regard to oil and refrigerants.
• Since the diameter of the heating and cooling pipes is small,
water may remain in the coil after emptying. For safety reasons,
compressed air should be blown through the system to remove any
remaining water.
IMPORTANT
Risk of material damage when installing the heating and cooling
coils!
DANGER
Danger due to
overhead loads!
The lifting gear, units,
cables, or the tackle
could be faulty or
damaged. Never stand
beneath suspended
loads.

11 © Vallox Oy - All rights reserved
INSTALLATION
IMPORTANT
The ventilation ducts
must not become
twisted.
The connections to the
connectors must be firm
and tight.
The flange connections
must be leakproof and
firm.
If necessary, anti-
vibration mounts can be
used on site between
the base of the unit and
the floor.
MECHANICAL ASSEMBLY
The installation and connection of the unit may only be carried out by
qualified specialists. Electrical connections must be carried out by a
person who has proper professional training and experience in the
relevant accident prevention regulations, as well as other generally
recognised safety and occupational health codes, and is authorised to
perform work on the unit.
DANGER
Danger to life due to electric shock!
The Vallox Pureo TX air handling unit must be installed in the upright
position. Due to noise levels, which vary depending on system
pressure, it is recommended that the unit be installed in the utility
room or a storage room. It must be ensured that there is a wastewater
connection in the installation area. See the condensate outlet (pages
16-17).
The assembly should be implemented in a way that enables the
shortest possible ventilation ducts and a trouble-free connection to the
unit. Tight bends result in increased pressure losses and flow noises.
The unit can be turned by 180° for optimal installation.
Ensure that the unit is positioned on an even surface before starting
the installation work.
Assembly area
Ensure that there is sucient space for maintenance when installing
the unit.
A Minimum distance to the wall
B Width of the unit
C Minimum distance for opening the service door
D Height of the unit
NOTE
It can be easier to install
accessories prior to the
final positioning and
installation of the unit,
as both sides of the unit
can then be accessed.
A
B
D
C
ASSEMBLY DIMENSIONS
Dimensions (mm)
A B C D
Vallox Pureo TX 500 665 870 870 1662
Vallox Pureo TX 900 795 890 890 1982
Vallox Pureo TX 1300 815 1520 1520 2030
Vallox Pureo TX 1800 815 1720 1720 2030

12
INSTALLATION
LEVELLING THE UNIT
Vallox Pureo TX units have adjustable levelling feet. It must be ensured
that the unit is standing on an even floor surface prior to installation
work. The height of the levelling feet must be adjusted to level the unit.
The height “H” must not exceed 125 mm.
MOUNTING THE DOOR HANDLES
The door handles are individually packed to prevent damage during
transportation. The door handles must be installed after the installation
and levelling of the unit.
Position the door handles on the selected access side and secure them
in place with screws.
IMPORTANT
Do not open the doors before the unit is standing on the ground
and has been levelled.
H

13 © Vallox Oy - All rights reserved
MAINTENANCE
INSTALLATION
CONDENSATE OUTLET
The humidity contained in the extract air condenses to water during
the heating cycle. Large volumes of condensate can build up in new
buildings when a large number of people is present. The condensate
collected in a stainless steel condensate tray is discharged via two
condensate outlets.
IMPORTANT
The drainage pipe must not be routed above the siphon. The
condensate must flow out easily. If the automatic discharge of
the condensate is not ensured, a suitable condensate pump
must be used.
The condensate outlet must be frost-proof!
• Vallox Pureo TX units have two condensate outlets per condensate
outlet pipe, one on the left and one on the right side of the unit.
Connect the condensate pipe of the corresponding condensate
outlet in the service direction.
• Ensure that any unused condensate outlets are plugged.
The unit has two condensate outlet pipes: one in the supply air side
and one in the exhaust air side. It must be ensured that the condensate
outlet pipes are connected separately. The condensate pipes must only
be connected to the wastewater system via an odour trap (siphon).
The condensate must flow freely into the wastewater system after the
siphon. Existing drainage systems must not be directly connected to
the wastewater system.
NOTE
A ball siphon is available
as an accessory.

14
INSTALLATION
Mount a pipe elbow below the condensate tray. Ensure that the
structure is watertight by turning the pipe connector.
MODULE ASSEMBLY
VALLOX PUREO TX 1300/1800
Start the assembly by applying a gasket to both surfaces of the heat
exchanger modules (Vallox Pureo TX 1300 and 1800).
DANGER
Danger to life due to
electric shock!
An electric shock
can result in death or
serious injury. Ensure
that the unit is voltage-
free and isolated
from the mains power
supply. Earth and short
circuit the unit. Shield
neighbouring live
components.

15 © Vallox Oy - All rights reserved
INSTALLATION
Vallox Pureo TX 1300 and 1800 units are delivered in three modules. Each
module must be shipped separately.
EHA ODA ETA SUP
Prior to the assembly of the modules in their final location, they must be
positioned as close to each other as possible. Only the respective base
frame must be used to pull the modules together.
Ensure that all electrical connections have been made properly:
1. ODA and ETA temperature sensor socket
2. Damper motor connections
3. The main supply power socket
1 2
3

16
INSTALLATION
Ensure that all air pressure hoses have been connected correctly as
indicated in the labels.

17 © Vallox Oy - All rights reserved
INSTALLATION
Prior to the assembly of the modules in the final position, they must be
positioned as close together as possible. Only the corresponding base
frame may be used to pull the modules together. Pull the modules close
together and tighten with screws.
1. Move the modules as close together as possible.
2. Only push them from the base frame.
3. Press the modules together.
4. Ensure that all parts of the modular assembly are in contact with each
other. Fasten in place with screws.
1
2
34

18
INSTALLATION
Flange connection and adapters
The dimensions for the flange connections of the unit can be found in
the following table.
NOTE
The ducts must be
firmly and tightly
connected to the
connection valves.
DIMENSIONS FOR THE UNIT FLANGE CONNECTIONS
Dimensions (mm)
R S T U V W n
Vallox Pureo TX 1300 832 432 804,4 400
422,2 256,3 8
Vallox Pureo TX 1800
1032 432 1004,4 400 422,2 323 8
U
S
T
R
W
V
M8
NOTE
After tightening the
screws, the accessory
must also be fastened
by using the mounting
brackets.
AIR DUCTS, VENTILATION CIRCUIT
Follow the local regulations on air ducts and fire protection.
Fasten the duct, the connecting piece, and the flexible duct connectors
at the corners of the unit with M8x16 screws.

19 © Vallox Oy - All rights reserved
INSTALLATION
ELECTRICAL CONNECTIONS
DANGER
Danger to life due to electric shock!
The unit must be fully isolated from the mains power supply before all
maintenance and installation work and before opening the terminal
compartment! Electrical connections must be carried out in accordance
with the relevant wiring diagram and must only be carried out by a
qualified electrician. Electrical connections must be fully isolated from
the mains power supply until final assembly!
The unit is equipped with a main switch and an isolator, which is
secured against unauthorized switching with a U-lock. The relevant
standards, safety regulations, and the technical connection conditions
of the local energy supply company must be observed. The unit is
connected to the mains electrical supply either directly through the
terminal box or through the main switch. The controller of the unit
(not included in the standard delivery) is connected to the unit via an
accompanying cable. The Vallox Pureo controller is connected with
a cable. The maximum controller cable length is 10 m. Based on the
applicable standard, the units should be classified as “professional
equipment”. The connection to a low voltage supply is permitted in so
far as this has been agreed upon with the energy supply company.
NOTE
The following circuit breakers are recommended:
Further information on the power supply connection of accessory
components can be found in the installation and operating instructions
of the relevant accessory component.
Phase Type Circuit breakers (A)
Vallox Pureo TX 500 ~1 C 16
Vallox Pureo TX 900 ~3 C 16
Vallox Pureo TX 1300 ~3 C 16
Vallox Pureo TX 1800 ~3 C 16
CIRCUIT BREAKERS

20
INSTALLATION
Vallox Pureo TX 1300 and 1800
1. See mounting the main switch next page.
2. Check the diameter of the cable that is used for the power supply
connection.
3. Insert the cable to the marked main switch.
4. Connect the cables to the terminals. Refer to the wiring diagram for
the connections.
POWER SUPPLY CONNECTION
1. Open the terminal box cover.
2. Check the diameter of the cable to be used for the power
connection.
3. Loosen the marked grommet and insert the cables.
4. Connect the cables to the marked terminals.