Vents VUT 100 P mini User manual

USER’S MANUAL
VUT 100 P mini
Heat recovery air handling unit

2VUT 100 P mini
CONTENTS
Safety requirements 3
Introduction 5
Use 5
Delivery set 5
Designation key 5
Main technical parameters 6
Design and operating logic 7
Mounting and set-up 8
Condensate drain 8
Connection to power mains 9
Unit control 9
Maintenance 10
Troubleshooting 11
Storage and transportation rules 11
Manufacturer's warranty 12
Acceptance certicate 13
Seller's information 13
Mounting certicate 13
Warranty Card 14

3
SAFETY REQUIREMENTS
• Read the user’s manual carefully prior to the operation and installation of the heat recovery air handling unit, hereinafter the
unit.
• Installation and operation of the unit shall be performed in accordance with the present user’s manual as well as the provisions
of all the applicable local and national construction, electrical and technical codes and standards.
• The warnings contained in the user’s manual must be considered most seriously since they contain vital personal safety
information.
• Failure to follow the safety regulations may result in an injury or unit damage.
• Read the manual carefully and keep it as long as you use the unit.
• While transferring the unit control the user’s manual must be turned over to the receiving operator.
Symbol legend used in the manual:
UNIT MOUNTING SAFETY PRECAUTIONS
WARNING!
DO NOT!
The unit must be disconnected from the power
supply prior to every installation or repair
operation.
The unit must be grounded!
The unit must not be operated outside the
temperature range stated in the user's manual
or in aggressive or explosive environments.
Do not use damaged equipment or
conductors to connect the unit to power
mains.
While installing the unit follow the safety
regulations specic to the use of electric tools. Unpack the unit with care.
Do not change the power cord length at your
own discretion. Do not bend the power cord.
Avoid damaging the power cord.
Do not position any heating devices or other
equipment in close proximity to the unit
power cord.

4VUT 100 P mini
UNIT OPERATION SAFETY PRECAUTIONS
Do not touch the unit controls with wet hands.
Do not carry out the unit maintenance with
wet hands.
Do not wash the unit with water. Protect
the unit electric parts from water ingress.
Use the unit only as intended by the
manufacturer. Do not connect a clothes dryer
or other similar equipment to the ventilation
system.
Do not put any water containers on the unit.
i.e. ower vases.
Do not sit on the unit and do not put any
objects on it.
OFF
ON
Disconnect the unit from power supply prior
to maintenance.
Do not let children operate the unit.
Do not damage the power cable while
operating the unit. Do not put any objects
on the power cable.
Keep combustible gases and inammable
products away of the unit. Do not open the operating unit.
In case of unusual sounds, smoke disconnect
the unit from power supply and contact the
service centre.
During long-term operation of the unit
periodically check the mounting for
reliability.
Do not block the air duct when the unit is on. Do not let air ow from the unit be directed
to the open ame devices or candles.

5
INTRODUCTION
This user’s manual includes technical description, operation, installation and mounting guidelines, technical data for the heat
recovery air handling unit VUT 100 P mini.
USE
The heat recovery unit is designed to save heat energy by means of heat energy utilization and is one of the energy saving components
used in buildings and premises.
The unit is a component unit and is not designed for independent operation.
The unit enables continuous air exchange by means of mechanical ventilation in private residences, oces, hotels, cafes, conference
rooms as well as recovery of the waste heat energy contained in the extract air to warm up the clean supply air.
The unit is designed for wall mounting.
The unit is rated for continuous operation always connected to power mains.
Transported air must not contain any ammable or explosive mixtures, evaporation of chemicals, coarse dust, soot and oil particles,
sticky substances, brous materials, pathogens or any other harmful substances.
Unit 1 item User's manual 1 item
Speed switch 1 item Packing box 1 item
THE UNIT IS NOT INTENDED TO BE USED BY CHILDREN, PHYSICALLY
OR MENTALLY DISABLED PERSONS, PERSONS WITH SENSORY DISORDER,
PERSONS WITH NO APPROPRIATE QUALIFICATION.
THE UNIT INSTALLATION SITES MUST PREVENT ACCESS BY UNATTENDED
CHILDREN.
DELIVERY SET
DESIGNATION KEY
Casing type:
compact casing
Modication:
P - suspended-mounted
Unit type:
VUT - heat recovery ventilation
Air capacity [m3/h]
VUT 100 P mini

6VUT 100 P mini
MAIN TECHNICAL PARAMETERS
The unit is designed for indoor application with the ambient temperature ranging from +1 °C up to +40 °C and relative humidity up
to 80%. The transported air temperature must be within -25 °C up to +50° C.
The unit is classied as a class I electric appliance.
Hazardous parts access and water ingress protection standard:
Unit motors - IP 44;
Unit assembly connected to air ducts - IP 22.
The unit design is regularly improved, so some models may slightly dier from those ones described in this manual.
595
397
96
105
212 404164
UNIT OVERALL DIMENSIONS, MM
UNIT TECHNICAL DATA
Model VUT 100 P mini
Speed low medium high
Supply voltage, 50 Hz [V] 1 ~ 230
Power [W] 30 38 56
Total unit current [A] 0,18 0,23 0,34
Air capacity [m3/h] 57 78 106
RPM [min-1] 1300 1950 2500
Noise level, [dB(A)] 24 32 41
Max. transported air temperature [°C] from -25 up to +50
Casing material Zinc aluminium
Insulation polyethylene foam 15 mm
Filter: extract G4
supply G4
Connected air duct diameter [mm] Ø125
Weight [kg] 13,0
Heat recovery eciency [%] from 65 up to 76
Heat exchanger type Cross ow
Heat exchanger material Plastic

7
DESIGN AND OPERATING LOGIC
The unit has the following operating logic:
Warm stale extract air from the room ows through the air ducts to the unit, where it is ltered, then air ows through the heat
exchanger and is exhausted outside by the extract fan through the air ducts.
Clean cold air from outside is moved by the supply fan to the unit, where from it is directed to the supply lter. Then ltered air ows
through the heat exchanger and moves to the room through the air ducts.
Heat energy of warm extract air is transferred to clean intake fresh air from outside and warms it up. Heat recovery minimizes thermal
energy losses, energy demand and operating costs for air heating accordingly.
SUPPLY AIR
EXTRACT AIR
EXHAUST AIR
INTAKE AIR
Extract fan
Drain pan
Thermostat
Heat exchanger
fan
UNIT OPERATING LOGIC
TOP VIEW
The freeze protection thermostat is installed in the exhaust air duct downstream of the heat exchanger. In case of a freeze danger the
thermostat switches the supply fan o and the heat exchanger is warmed up with warm extract air ow. Rotate the thermostat control
knob to set the operation temperature of the thermostat sensor. The thermostat set point is selected individually depending on the unit
operating specics.
The recommended thermostat operating temperature is +3 °C (factory setting).

8VUT 100 P mini
MOUNTING AND SETUP
The unit is designed for suspended mounting by means of the threaded rod xed in the threaded dowel pin.
While mounting the unit provide the minimum required access to the unit for maintenance and repair. The required minimum
distances from the unit to the wall is shown below.
min 400 mm
min 10 mm
min 300 mm
Nut
Washer
Vibration-absorbing rubber
Nut and lock-nut
Mounting example
Precautions:
The unit is designed for mounting on a rigid and stable structure.
The unit is mounted with anchor bolts. Make sure that a mounting construction has sucient load capacity matching the unit weight.
Otherwise reinforce an installation place by beams, etc.
If the threaded bolts used for the unit mounting are too short the unit can generate abnormal noise and resonate with the ceiling. The
suspended bolts must be long enough to prevent resonating.
If the unit connection place to the spiral seam duct is supposed to be the source of abnormal noise, install a exible air duct instead of the
exible one. Optionally the exible connectors may also be used to prevent resonating.
CONDENSATE DRAINAGE
The condensate drain pan has pipes for extracting the condensed uid outside the unit.
Connect the pipe, U-trap (not included in delivery package) and sewage collection system with metal, plastic or rubber connecting
pipes and. The pipe slope downwards must be at least 3°. Fill up the system with water before connecting the unit to the power mains! The
U-trap must be lled with water at all times during the unit operation. Make sure that the water ows freely into the sewage collection
system or otherwise condensed water may build up in the unit during the heat exchanger operation which, in turn, may cause equipment
failure and water ingress into the premises.
The condensate drainage system is designed for normal operation in premises with air temperatures above 0 °C. If the expected air
temperatures are below 0 °C the condensate drainage system must be equipped with heat insulation and pre-heating facilities.
Drain pipe
Pipe
U-trap
Pipe
Sewage system
min 3°
UNIT MOUNTING
CONDENSATE DRAINAGE ARRANGEMENT

9
CONNECTION TO POWER MAINS
DISCONNECT THE UNIT FROM POWER MAINS PRIOR TO ANY ELECTRIC
INSTALLATION OPERATIONS. CONNECT THE UNIT TO A CORRECT INSTALLED
SOCKET WITH A GROUNDED TERMINAL. ANY INTERNAL CONNECTION
MODIFICATIONS ARE NOT ALLOWED AND RESULT IN WARRANTY LOSS.
The unit is rated for connection to single-phase ac 230 V / 50 Hz power mains.
The unit is connected to power supply with a prewired power cable with a plug. In case of need to connect a longer cable follow the
wiring diagram below.
The unit must be connected to power mains with insulated, durable and heat-resistant conductors (cables, wires) with minimum cross
section 0.75 mm2.
Connect the unit to power mains on the terminal block located in the terminal box in compliance with the wiring diagram below and
terminal marking. The terminal marking is shown inside of the terminal box. The unit terminal clamps are marked according to the marking
on the wiring diagram.
Route the wires to the terminal box through the stepped grommet on the unit side panel to preserve the electrical protection class.
Connect the unit to power mains through the external automatic circuit breaker with magnetic trip integrated into the xed wiring
system with the rated current not below 1 A.
X1
QF
LOW
MIDDLE
HIGH
S1
L
N
PE
L 1
321
C
2
3
4
5
6
7
8
N
PE
SL
1
2
3
~ 230 V,
50 Hz
WIRING DIAGRAM
QF - automatic circuit breaker (not included into the delivery set).
S1 - speed switch.
X1 - terminal block.
UNIT CONTROL
Air ow is controlled with the speed switch P3-1/300. To activate the required unit speed set the control knob to a respective position
according, see the gure below.
OFF
12
3
OFF
12
3
OFF
12
3
OFF
12
3
OFF
12
3
— unit is on
— unit runs at low speed
— unit runs at medium speed
— unit runs at high speed

10 VUT 100 P mini
MAINTENANCE
The unit must undergo technical maintenance 3 to 4 times a year. Maintenance includes general cleaning of the unit and the following
operations:
1. Filter maintenance.
Contaminated lters increase air resistance thus impairing supply air delivery into the premises.
The lters should be cleaned as they get dirty, but at least 3-4 times a year. Vacuum cleaning for the air lters is allowed. After two
consecutive cleaning the lters must be replaced. For new lters contact your Seller.
FILTER PULLING PROCEDURE
1. Remove four triangular screws.
2. Remove the lter covers.
3. Pull the lters downwards to remove.
1. Undo four clips.
2. Remove the service panel.
3. Turn the retaining support to loosen and remove the heat exchanger.
HEAT EXCHANGER REMOVAL AS FOLLOWS
DISCONNECT THE UNIT FROM POWER SUPPLY PRIOR TO MAINTENANCE.
DISCONNECT THE DRAIN PIPE PRIOR TO HEAT EXCHANGER MAINTENANCE.
1 2 3
1 2 3
2. Heat exchanger maintenance.
Even regular technical maintenance may not completely prevent dirt accumulation on the heat exchanger casing. Clean the heat
exchanger on a regular basis to ensure high heat recovery eciency. To clean the heat exchanger remove it from the unit and wash with
warm neutral detergent solution. Re-install the dry heat exchanger into the unit.