Vents VUT 350 U EC User manual

OPERATION MANUAL
VUT 350 U EC
VUT 350 EU EC
Air Supply and Exhaust Unit
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VUT 350 (E)U EC
VUT 350 (E)U EC
Introduction
Purpose
Delivery Package
Designation key
Main Technical Specications
Safety Requirements
Design and Operating Logic
Installation and Setup
Condensate Drainage
Connection to Power Mains
Unit Control
Technical Maintenance
Fault Handling
Storage and Transportation Regulations
Manufacturer’s Warranty
Acceptance Certicate
Connection Certicate
Warranty Card
CONTENTS
3
3
3
4
4
6
6
7
9
10
11
18
20
21
21
22
22
22
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INTRODUCTION
PURPOSE
DELIVERY PACKAGE
Unit - 1 item;
Operation Manual - 1 item;
Wall-Mounted Control Panel - 1 item;
Remote Control - 1 item;
Duct temperature sensor (VUT 350 EU EC only) - 1 item;
Shipping Box - 1 item;
Fixture Kit - 1 item.
The present operation manual consisting of the technical details, operating instructions and
technical specication covers the installation of the VUT 350 (E)U EC air handling unit with heat
recovery of VENTS series (hereinafter the Unit).
The unit with heat recovery is designed to save thermal energy by means of thermal energy
utilization and is one of the energy saving components used in buildings and premises. The air
handling unit is a component unit and is not designed for independent operation.
The unit is designed to arrange continuous air exchange by means of mechanical ventilation
in private residences, oces, hotels, cafes, conference rooms as well as recuperation of heat energy
contained in warm stale extract air to warm up the puried supply air.
The transported air must not contain any combustible or explosive mixtures, chemical fumes,
coarse dust, soot, fat or any environment, prolic for the formation of harmful substances (toxic
substances, dust and pathogens) as well as sticky substances and brous materials.
The unit is not intended for operation by children or any persons with reduced
physical, mental or sensory capacities as well persons lacking the required training.
The unit must be handled only by properly qualied personnel after the
appropriate safety instructions.
Install the unit to be out of reach of children.
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VUT 350 (E)U EC
VUT 350 (E)U EC
MAIN TECHNICAL DATA
DESIGNATION KEY
The unit is designed for operation in an enclosed area at ambient temperatures from +1 °C to +
40 °C at relative humidity of up to 80%.
Hazardous parts access and water ingress protection standard:
Unit motors - IP 44;
Unit assembly connected to air ducts - IP 22.
The unit series designations, their main outside and connecting dimensions, appearance and
technical parameters are given on Figure 1 and in Table 1.
The units undergo continuous improvement - therefore, some models may slightly dier from the
ones described herein.
VUT 350 E U EC
MotorType
Electronically Commutated
Air capacity, m³/h
Unit type
VUT - heat recovery ventilation
Electric heater
Spigot Arrangement
U – angular (versatile)
Fig. 1. Outside and Connecting Dimensions of the Unit
700
149
428
600 665
10 m cable
Su. Mo. Th.We.Tu. Fr. Sa.
RT
SET
TIMERO N
TIMER OFF
C
h
88
88 :88
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Model VUT 350 U EC / VUT 350 EU EC
Ventilation Mode Speed 1 Speed 2 Speed 3
Supply Voltage, V/50 Hz 1 ~ 230
Maximum Fan Power, W 36 138 220
Fan Current, A 0,29 0,97 1,48
*Electric Heater Power, kW No / 2,0*
*Electric Heater Current, A no / 8,7*
Total Unit Power, kW 0,22 / 2,22*
Unit Maximum Consumption Current, A 1,5 / 10,0*
Maximum Air Capacity, m3/h 133 270 331
RPM, min-1 1440 2200 2900
Sound Pressure Level at 3m, dB(A) 28 34 41
Transported Air Temperature, °C from - 25 to +60
Casing Material Polymer Coated Steel
Insulation 20 mm, mineral wool
Filter: Air Exhaust/Air Supply G4
Connected Air Duct Diameter, mm Ø 150
Weight, kg 43 / 44*
Recuperating Eciency up to 98%
Heat Exchanger Type Counterow
Heat Exchanger Material Polystyrene
* - only applies to VUT 350 EU EC units
Table 1 . Technical Parameters
Ambient Temperature from 0 °C to 40 °C
Relative Humidity from 5% to 90 % (without condensation)
Cable Section, mm2from 0.18 to 0.35
Material ABS Plastic
Dimensions (WхHхD), mm 86х86х14
Cable Length, m Up to 10
Protection Class IP30
Table 2 . Control Panel Specications
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VUT 350 (E)U EC
VUT 350 (E)U EC
RESTRICTIONS:
• Do not operate the unit outside the permissible temperature range specied in the
Operation Manual or in areas with aggressive admixtures in the air and in explosive
environments.
• Do not connect drying machines or other similar high-power equipment to the
ventilation circuit.
• Do not use the unit for handling air-dust mixtures.
DESIGN AND OPERATING PRINCIPLE
The unit design and operating principle are shown on Fig. 2. The warm stale air from the premises
is supplied to the device and puried in the exhaust lter, passed through the heat exchanger and
then extracted outside via the ducts by the exhaust fan. The cool fresh air from the outside enters
the unit through the air ducts and is stripped of impurities in the supply lter.
The air then passes through the heat exchanger and is delivered into the premises by the supply
fan. The heat exchanger ensures transfer of the heat energy extracted from the warm exhaust air to
the clean outdoor air therefore heating it up.
The air streams do not get mixed in the heat recovery process. The use of a heat exchanger
reduces heat energy losses and, consequently, the heating costs in the cold season.
The VUT 350 EU EC unit is equipped with a 2 kW electric heater with overheating protection
which heats up the supply air. However, supply air heating is not available in the «Night» mode.
The unit design and operating principle are shown on Fig. 2.
The basic conguration includes:
1. Exhaust fan;
2. Supply Fan;
3. Counter-ow heat exchanger;
4. Exhaust air, ltering class G4;
5. Supply air, ltering class G4;
6. Condensate drain pan;
7. Condensate drain tubes;
8. Control Unit;
9. Bypass;
10. Bypass control temperature sensor;
11. Electric heater (only for VUT 350 EU EC unit);
12. Supply air duct temperature sensor.
SAFETY REQUIREMENTS
Installation and operation of the unit shall be subject to the present Operation Manual and the all
appliable local building, re safety, technical and electric regulatory documents.
The unit must be properly earthed.
Prior to connecting the unit to the power mains check for visible damage as well as for any foreign
objects in the fan casing which may damage the impeller blades If necessary, contact the service centre.
ATTENTION!
Make sure to disconnect the unit from the power mains prior to any installation,
maintenance, connection and repair work.
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INTAKE AIR
EXHAUST AIR
SUPPLY AIR
EXTRACT AIR
1 23
5 4
6
7
8
9
10 11
2 m cable
12
Fig. 2. Design and Operating Logic
INSTALLATION AND SETUP
While installing the unit ensure convenient access for subsequent maintenance or repair.
The wall intended for unit installation must be smooth. Any surface irregularities will lead to unit
casing skew and may prevent the unit from operating properly.
The unit installation is shown on Fig. 3:
Secure the wall mount with anchor bolts at the necessary level (all the fasteners are
included in the delivery package).
Hang the unit onto the wall mount.
To ensure correct supply air pre-heating (only applicable to the VUT 350 EU EC) install the duct
sensor into the air duct (item 12 on Fig. 2) at the minimum distance of 1 m from the supply spigot.
The installation steps for the supply air temperature duct sensor is as follows:
drill a Ø 9 mm hole in the air duct;
insert the sensor into the hole;
secure the sensor on site.
It is recommended that the sensor and air duct joint is hermetically sealed.
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VUT 350 (E)U EC
VUT 350 (E)U EC
Fig. 3. Unit Installation
The wall-mounted control panel is installed as follows:
Undo the clips through the access holes in
the bottom of the wall-mounted control panel (Fig. 4).
Remove the back cover.
Disconnect the panel from the
terminal block.
Lay the cable in the wall to the panel
installation site.
Secure the panel back cover to the
wall (Fig. 5).
Fasten the cable to the terminal block.
Clip the wall-mounted front panel in
place.
Fig. 4. Back Cover Removal
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CONDENSATE REMOVAL
Fig. 6. Condensate Removal
min 3°
min 3°
min 100 mm
min 50 mm
CONDENSATE
DRAIN TUBE
CONNECTING
TUBE U-TRAP
CONNECTING
TUBE
SEWERAGE
COLLECTION SYSTEM
The condensate drain pan installed in the heat recovery section has pipes for removing the
condensed uid outside the unit.
Connect the tube, the U-trap (not included in delivery package) and the sewage collection system
with metal or rubber pipes (Fig. 6).The pipe pitch must be at least 3°. Fill up the system with water before
connecting the unit to the power mains! During the operation the U-trap must be always lled with
water. Make sure that the water ows freely into the sewage collection system or otherwise condensed
water may build up in the unit during heat recovery, which consequently, may cause equipment failure
and water ingress into the premises.
Fig. 5. Fixing Back Cover to the Wall
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VUT 350 (E)U EC
VUT 350 (E)U EC
The unit must be connected to the power mains via an automatic cutout switch built into the
stationary wiring with a magnetic breaker with the nominal trip current at least equal to the unit
consumption current (see Table. 1).
The unit enables the following external connection options (X3 connector markings as shown on
the label are given in round brackets, Fig. 7):
Automatic re extinguishing system contact («PK»);
Humidity relay (humidity sensor) contact or CO2 sensor contact («H»);
«3-point control» air damper («Y-N, Y-L, Y-C»).
On connecting the automatic re extinguishing system contact remove the jumper between
terminals X3:1 and X3:2 of the terminal block X3; In this case a normally closed «dry» contact is used
which opens the unit control circuit on re-triggered actuation from the central re-ghting station
cutting the unit power.
The humidity sensor (or CО2sensor) connects to terminals X3:3 and X3:4 of the terminal block X3;
The connection relies on a normally closed «dry» contact. Once closed the unit switches to maximum
speed.
The damper actuator is connected to the terminals X3:5, X3:6 and X3:7 of the terminal block X3. The
same contacts can be used for parallel connection of one more damper.
The additional contacts are connected according to the wiring connection diagram (Fig. 7). The
wires are routed into the terminal box through a sealed lead-in on the top of the unit.
Disconnect the unit from the power supply prior to any work. The unit must be
plugged into a properly installed power socket with an earthed terminal. The nominal
electrical parameters of the unit are given on the manufacturer’s label. Any tampering
with the internal connections is prohibited and will void the warranty.
POWER MAINS CONNECTION
Fig. 7. External Connections Diagram
1
2
3
4
"2"
L
L
ÐÊ ÍY-L
Y-C
Remove the jumper on connecting the
NC contact to the re alarm system
PK - to the re
alarm system
board
РК H
“1”
“2”
“3”
Y-C
C
L
N
Y-L
X3
1
2
3
4
5 7
6
Y-N
H - to the humidity
sensor or CO2
sensor Damper actuator
Y - to the external air
damper
The condensate drainage system is designed for indoor operation at ambient temperatures
above 0 °C. If the expected air temperatures are below 0 °C, the condensate removal system must be
equipped with heat insulation and pre-heating facilities.
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