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Documentation
Complete order-specific technical documentation produced by SystemairCAD.
Systemair A/S - Air handling unit design
SystemairCAD - Version C2012-08.00.00 rc3
16-11-2012
Page 12
Project: Unit: Danvent DV TIME 25
Damper - extract or exhaust air, on-off motor
The damper is opened and closed by an on/off damper motor - torque 20 Nm - running time 150
seconds.
Filter guard over bag filter in supply air
Filter guard over bag filter in supply air installed and connected to the controller for display of alarm when
the mechanically set limit is exceeded.
Filter guard over bag filter in extract air
Filter guard over bag filter in extract air installed and connected to the controller for display of alarm
when the mechanically set limit is exceeded.
Communication to BMS systems with MODBUS
The controller has been prepared for communication via RS485 communication port to a MODBUS
based BMS system (Building Management System).
The controller can work as a stand-alone system without any support from other controllers.
Free cooling
The outdoor temperature is measured by a sensor inside the unit in the outdoor air entrance. If the
outdoor temperature after midnight is below the room temperature set point and the actual extract
temperature is above the set point temperature, the fans start during the summer to cool down the
building during night.
Systemair A/S
'Ved Milepælen 7
DK-8361 Hasselager
Telephone : +45 8738 7500
Telefax :
www.systemair.se
Systemair A/S - Air handling unit design
SystemairCAD - Version C2012-08.00.00 rc3
16-11-2012
Page 9
Project: Unit: Danvent DV TIME 25
Cabinets and mains supply
The 2 cabinets with terminal blocks, relays, fuses, 24 V AC power supply and controller are mounted
according to the supplied wiring diagram. The controllers are configured according to the customer’s
order and confirmed in the order confirmation. Specification is also delivered with the unit. On the site
mains power supply must be connected directly to the cabinet placed in the supply fan section. The
installer on site has full responsibility to ensure that any unit/installation which requires additional
protection of the mains power supply relating to frequency converters or any other such device is all
carried out according to local statutory requirements.
The supply disconnecting device for the unit is not included. But supply disconnecting device is available
without cable and uninstalled - see the order confirmation.
External electrical components
Temperature sensor for supply air is provided with cable and connected to the cabinet placed in the
supply fan section.
Depending on the customer’s choice there are terminals in the board cabinet for;
- pressure transmitters in ducts for pressure control
- valve for heating and circulation pump for heating coil
- temperature sensor for frost protection of the hot water heating coil
- electrical heating coil
- valve for cooling with chilled water.
- other sensors
The above-mentioned components are not provided with cable and the above-mentioned components
are delivered uninstalled.
Control panel with 10 m cable is not connected to controller.
Controller and control panel
The control panel must be connected by cable (10 m) to the controller in the cabinet placed in supply fan
section, and the programming and normal handling is carried out from the control panel with display and
buttons - the Systemair Control Panel - the SCP. The protection class of the control panel is IP 41. It is
possible to control the unit with the control panel up to 1200 metres away from the unit with the
assistance of a repeater (optional). The distance between repeater and control panel is restricted to the
10 metres of cable in the control panel. Protection class for the repeater is IP20. The cable between the
controller in the unit and the repeater is not delivered by Systemair. The repeater must be connected to
cabinet in supply fan section.
Schedules
The regulator has individual schedules for start, stop and high/low air flow rate for each week-day as well
as schedules for holidays.
The regulator has automatic summer-winter-time change over.
Outside normal operating hours, free cooling is available according to settings.
Cooling recovery
If the extract air temperature is lower than the outdoor air temperature, and there is a cooling demand in
the rooms, the cooling recovery will be activated. The heat exchanger signal is reversed to give
increasing cooling recovery on increasing demand.
Access rights - passwords
There are 3 different log-on levels
- Operator level or basic level - (no password) - access to read values and to change user relevant
settings concerning schedules, temperature, air flow and to cancel alarm and even to restart the
system after having removed the reason that triggered the alarm.
- Service level (password) - access to change fundamental values, access to store new settings,
access to restart the system according to user’s own former settings or original factory settings.
- System level which has the highest authority level (special password) with full read/write access to
all settings and parameters (also access to the configuration of the whole system)
Systemair A/S
'Ved Milepælen 7
DK-8361 Hasselager
Telephone : +45 8738 7500
Telefax :
www.systemair.se
Systemair A/S - Air handling unit design
SystemairCAD - Version C2012-08.00.00 rc3
16-11-2012
Page 8
Project: Unit: Danvent DV TIME 25
Integrated Systemair control system
The air handling unit is built with a complete and fully integrated control system - based on 2 controllers -
the Systemair E28 and the Systemair E15 that are mounted in 2 cabinets. One cabinet is placed in the
supply fan section and one cabinet in the exhaust fan section. The air handling unit can either run stand
alone or cabled against a building management system
Before shipment the unit has been assembled and has passed a final functional test and inspection.
Order-specific set-up and parameters are stored in the controllers during this process. The test report is
delivered along with the air handling unit.
Flow chart
M
M3
T
R1
P
B1
P
B3
T
B5
T
R3
M
M4
MM8
P
P2
T102
EF
T
R6
T
R2
P
P1
T101
SF
T
B4
T
R5
DVH
M6
M12
T
R4
Outdoor
Exhaust
Extract
Supply
Detailed technical specification
Cable Component Page/ Analog Analog Digital Digital
number number index Output Input Output Input
R1
R2
R3
R4
P1
P2
Filter guard supply air Internal wires B1
Filter guard extract air Internal wires B3
Frequency converter, supply air
W102.1 T102
W102.2
Frequency converter, extract air
W101.1 T101
W101.2
English W307 B4
W308 B5
Damper motor supply air W330 M3
Damper motor extract air W331 M4
str(51246) not found
Frost protection heating R5
Valve and Valve motor, Heating
W320 M6
Recovery with counter-flow heat exchanger
The performance of the counter-flow heat exchanger is stepless via the control by the modulating
actuator that regulates the 2 dampers - one damper in the bypass duct for supply air and one damper in
front of the supply air part of the exchanger for the distribution of air between the counter-flow heat
exchanger and the bypass duct.
Systemair A/S
'Ved Milepælen 7
DK-8361 Hasselager
Telephone : +45 8738 7500
Telefax :
www.systemair.se
Systemair A/S - Air handling unit design
SystemairCAD - Version C2012-08.00.00 rc3
16-11-2012
Page 7
Project: Unit: Danvent DV TIME 25
Other parts
Sections
Product Dimensions (width x height x length) Weight
CST-25-R-4-820-Std-2 1420 x 1420 x 820 mm 254 kg
CST-25-R-12-1720-Std-2 1420 x 1420 x 1720 mm 267 kg
CST-25-R-3-970-Std-2 1420 x 1420 x 970 mm 276 kg
Feet
Product Dimensions (width x height x length) Weight
DVZ-25-1 1420 x 100 x 820 mm 2 kg
DVZ-25-2 1420 x 100 x 1720 mm 11 kg
DVZ-25-1 1420 x 100 x 970 mm 2 kg
Feets are supplied mounted on the unit casing.
Duct connections
Product Dimensions (width x height)
Outdoor 1350x600 mm
Supply 1350x600 mm
Extract 1350x600 mm
Exhaust 1350x600 mm
Systemair A/S
'Ved Milepælen 7
DK-8361 Hasselager
Telephone : +45 8738 7500
Telefax :
www.systemair.se
Systemair A/S - Air handling unit design
SystemairCAD - Version C2012-08.00.00 rc3
16-11-2012
Page 6
Project: Unit: Danvent DV TIME 25
No. of rows 2
Coil code DVH-25-W-Z-2-9-600-1160-2.1-CU-Al-H-1 1/4
The extract unit consist of
Empty section
Pressure drop 1 Pa
Length 150 mm
Damper
Pressure drop 2 Pa
Damper blades Standard
Filter
Dimensioning pressure drop 120 Pa
Initial pressure drop/Final pressure drop 61/179 Pa
Velocity, face area 1.78 m/s
Velocity, filter area 0.10 m/s
Filter class F7
Filter size 2x[592x592]
Filter length 535 mm
Counter flow heat exchanger
Data are stated on supply.
Fan , Plug
Air flow 4500 m3/h
External pressure 250 Pa
Pressure drop 22 Pa
Fan static pressure 579 Pa
Total pressure 602 Pa
Absorbed power 1.07 kW
Fan speed 1552 RPM
Maximum fan speed 2040 RPM
Fan efficiency by static pressure 67.9 %
Fan efficiency by total pressure 70.5 %
K-factor (p=1,2 kg/m3) 240
Fan type L-R3G450-AQ24-01
Direct drive
Motor
Motor type EC motor
Motor size M3G 150-FF
Motor protection Built-in
Rated power 2.73 kW
Speed (nominal) 2040 RPM
Current, Amp. 4.20 A
Efficiency of motor incl. speed control 83.0 %
Voltage 380 - 480 V
Consumed power from mains power supply, including speed control 1.28 kW
Systemair A/S
'Ved Milepælen 7
DK-8361 Hasselager
Telephone : +45 8738 7500
Telefax :
www.systemair.se
Systemair A/S - Air handling unit design
SystemairCAD - Version C2012-08.00.00 rc3
16-11-2012
Page 5
Project: Unit: Danvent DV TIME 25
Air relative humidity in winter before/after 90/5 40/97 %
Condensate 0.4 l/min
Capacity 57.72 kW
Temperature efficiency 90.6 %
Dry efficiency according to EN 308 at 4500 m3/h 80.1 %
Drip tray Standard
Water trap 2 pcs
Condensate and frost! This operation mode can´t be used continuously without defrosting.
Freezing limit not considered in the result of the calculation.
Fan , Plug
Air flow 4500 m3/h
External pressure 250 Pa
Pressure drop 22 Pa
Fan static pressure 606 Pa
Total pressure 629 Pa
Absorbed power 1.12 kW
Fan speed 1581 RPM
Maximum fan speed 2040 RPM
Fan efficiency by static pressure 67.5 %
Fan efficiency by total pressure 70.0 %
K-factor (p=1,2 kg/m3) 240
Fan type L-R3G450-AQ24-01
Direct drive
Motor
Motor type EC motor
Motor size M3G 150-FF
Motor protection Built-in
Rated power 2.73 kW
Speed (nominal) 2040 RPM
Current, Amp. 4.20 A
Efficiency of motor incl. speed control 83.3 %
Voltage 380 - 480 V
Consumed power from mains power supply, including speed control 1.35 kW
Heating coil, Fluid
Air flow 4500 m3/h
Pressure drop 19 Pa
Air temperature before/after 16.0/22.0 °C
Capacity 8.98 kW
Face velocity 1.80 m/s
Fluid type Water
Fluid temperature inlet/outlet 70.0/50.0 °C
Fluid flow rate 0.11 l/s
Fluid pressure drop 0.6 kPa
Fluid velocity 0.17 m/s
Coil volume 6.1 l
Connection side Service side
Connection size inlet/outlet 1 1/4" / 1 1/4"
Tube material Cu
Fin material Al
Fin spacing 2.1 mm
Systemair A/S
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DK-8361 Hasselager
Telephone : +45 8738 7500
Telefax :
www.systemair.se
Systemair A/S - Air handling unit design
SystemairCAD - Version C2012-08.00.00 rc3
16-11-2012
Page 4
Project: Unit: Danvent DV TIME 25
Technical specification
Language in controller menu English
External communication Modbus integrated
Temperature control Cascaded extract air temperature control
Fan control Air flows control m3/h
Sensors delivered No
Damper motor supply air Motor ON/OFF
Damper motor extract air Motor ON/OFF
External control via digital input Extended running - normal speed
Free cooling Free cooling without external sensors
Coil configuration Heating
Frost protection heating Standard frost protection
Valve for heating 2-Way valve, Kvs 1.00, DN15 Inside
thread
Pressure drop 15 kPa
Fire guards Fireguard
Motor size 2 x 2.73 kW
Mains power supply for control system
Switch board data Voltage 3x400V + N + PE 50 Hz
Max lk 16 kA
Min lk 650 A
Max fuse 25 A
Min fuse 13 A
Extract air fan 16 A
Supply air fan 16 A
The installer on site must ensure that additional protection of the mains power supply relating to
frequency converters is all carried out according to local statutory requirements.
The supply unit consist of
Damper
Pressure drop 2 Pa
Damper blades Standard
Filter
Dimensioning pressure drop 120 Pa
Initial pressure drop/Final pressure drop 61/179 Pa
Velocity, face area 1.78 m/s
Velocity, filter area 0.10 m/s
Filter class F7
Filter size 2x[592x592]
Filter length 535 mm
Counter flow heat exchanger
With face and by-pass damper
Supply Extract
Air flow 4500 4500 m3/h
Pressure drop 193 183 Pa
WINTER Air temperature in winter before/after -20.0/18.0 22.0/-5.5 °C
Systemair A/S
'Ved Milepælen 7
DK-8361 Hasselager
Telephone : +45 8738 7500
Telefax :
www.systemair.se
Systemair A/S - Air handling unit design
SystemairCAD - Version C2012-08.00.00 rc3
16-11-2012
Page 2
Project: Unit: Danvent DV TIME 25
Plan view Access side
Systemair A/S
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DK-8361 Hasselager
Telephone : +45 8738 7500
Telefax :
www.systemair.se
Systemair A/S - Air handling unit design
SystemairCAD - Version C2012-08.00.00 rc3
16-11-2012
Page 1
Project: Unit: Danvent DV TIME 25
Summary for unit no. 2
Unit size 25
Unit width 1420 mm
Weight 837 kg
TIME air handling units are built with a complete and fully integrated control system - based on the
Systemair E28 controller.
Supply Extract
Airflow (1,205 kg/m³) 4500.00 m3/h 4500.00 m3/h
Face velocity (unit) 1.49 m/s 1.49 m/s
External pressure 250 Pa 250 Pa
Filter F7 F7
Fan speed 1581 RPM 1552 RPM
Motor 2.73 kW 2.73 kW
Voltage 380 - 480 V 380 - 480 V
Current, Amp.,rated 4.20 A 4.20 A
Heat recovery 90.6 %
SFP, clean filters including speed control 1.90 kW/(m³/s)
Heating 8.98 kW - Air 16.0/22.0°C - Water 70/50°C - 0.6 kPa - 0.11 l/s
Pipe connections 1 1/4" / 1 1/4"
Sound power level 63 125 250 500 1k 2k 4k 8k Hz Total
Supply air 73 72 77 75 79 75 72 66 dB 82 dB(A)
Outdoor air 68 68 73 64 58 57 47 29 dB 67 dB(A)
Exhaust air 73 72 77 76 81 77 74 70 dB 84 dB(A)
Extract air 67 67 72 64 58 56 46 29 dB 67 dB(A)
Sound break out 66 65 58 48 45 46 38 23 dB 55 dB(A)
Systemair A/S
'Ved Milepælen 7
DK-8361 Hasselager
Telephone : +45 8738 7500
Telefax :
www.systemair.se
Dimensions
Technical specifications - control system
Supply unit – components specification
Extract unit – components specification
Other components
Description of functions
Description of functions
SystemairCAD
To ensure optimal dimensioning of the functions of the air
handling unit, an advanced design programme,
SystemairCAD has been developed. The programme is
very user-friendly and facilitates a simple and quick way
to combine functions. The software will make a technical
calculation and automatically, a complete technical docu-
mentation will be produced. The programme is also able
to generate a specification text for the tender and this text
can be transferred to any word processing system via the
rtf-files. The documentation is presented as a pdf-report
specifically regarding the air handling unit that has been
chosen. Furthermore drawings on the specific combination
will be included in the report. The drawings can be trans-
ferred to a CAD system through DXF files, in 2D or 3D.
Fully integrated control
Order-specific set-up
4500 m3/h
Heat recovery 90.6%
SFP, clean filters incl. speed control 1.90 kW
250 Pa
7
TIME ec air handling units |
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