System air 145946 User manual

Installation instruction EN
VAV duct pressure control kit

Table of content
1 Introduction .......................................................... 1
1.1 Product description ......................................1
1.2 Intended use ..............................................1
1.3 Document description...................................1
1.4 Product overview.........................................1
2 Product liability...................................................... 1
3 Safety .................................................................1
3.1 Safety definitions......................................... 1
3.2 Safety instructions ....................................... 2
3.3 Personal protective equipment ....................... 2
4 Installation............................................................ 2
4.1 To do before the installation of the
product......................................................2
4.2 To install the differential pressure
transmitters ................................................ 2
4.3 Description of the pressure transmitter ............. 3
4.3.1 To set the pressure range on the
pressure transmitter ......................... 3
4.3.2 To zero point calibrate the
pressure sensors............................. 3
4.3.3 To reset to factory settings ................. 3
4.3.4 Status LED light .............................. 3
5 Technical data....................................................... 4
5.1 Wiring diagrams .......................................... 4
5.2 Topvex SR/TR, SC/TC.................................. 4
5.3 Topvex FR, FC, SF ...................................... 5
6 To configure the pressure transmitter in the air
handling unit controller........................................... 5
6.1 For SR/TR, SC/TC, FC, FR............................ 5
6.1.1 To log in ........................................ 5
6.1.2 To start the configuration
wizard ........................................... 6
6.1.3 To activate the pressure control
function ......................................... 6
6.1.4 To allocate differential pressure
sensors ......................................... 6
6.1.5 To adjust the fan pressure set
points............................................ 7
6.1.6 To save local settings .......................7
6.2 For SF units ............................................... 8
6.2.1 To log in......................................... 8
6.2.2 To set the fan control type.................. 8
6.2.3 To set the adjusted working
range ............................................ 8
6.2.4 To set air control setpoint................... 8
6.2.5 To set alarm limit ............................. 9
6.2.6 To allocate in- and outputs ................. 9

1 Introduction
1.1 Product description
Included in the kit are two settable differential pressure trans-
mitters, two measuring taps, one red and one blue tube (2 m),
one two-wire cable (4 m) and one installation instruction.
1.2 Intended use
The VAV duct pressure control kit is used for VAV control of
air handling units.
1.3 Document description
This document contains instructions for installation and con-
figuration of the product. The procedures must be done by
approved personnel only.
1.4 Product overview
1
3
24
1. Differential pressure transmitter
2. Electrical cable
3. Tubes
4. Pressure measuring taps
2 Product liability
Systemair is not liable for damages that the product causes
in these conditions:
• The product is incorrectly installed, operated or
maintained.
• The product is repaired with parts that are not original
spare parts from Systemair.
• The product is used together with accessories that are not
original accessories from Systemair.
3 Safety
3.1 Safety definitions
Warnings, cautions and notes are used to point out specially
important parts of the manual.
Warning
If you do not obey these instructions,
there is a risk of death or injury.
Caution
If you do not obey these instructions,
there is a risk of damage to the product,
other materials or the adjacent area.
Note:
Information that is necessary in a given situation.
1

3.2 Safety instructions
Warning
Read the warning instructions that follow
before you do work on the product.
• Read this manual and make sure that you understand the
instructions before you do work on the product.
• Obey local conditions and laws.
• The ventilation contractor and the operator are responsi-
ble for correct installation and intended use.
• Keep this manual at the location of the product.
• Do not install or operate the product if it is defective.
• Do not remove or disconnect safety devices.
3.3 Personal protective
equipment
Use personal protective equipment during all work on the
product.
• Approved eye protection
• Approved protective helmet
• Approved hearing protection
• Approved protective gloves
• Approved protective shoes
• Approved work clothing
4 Installation
4.1 To do before the installation
of the product
• Examine the packaging for transportation damage and re-
move the packaging from the product carefully.
• Examine the product and all components for damage.
4.2 To install the differential
pressure transmitters
Note:
In humid environment, fasten the differential pressure
transmitter vertically with the cable gland edge of the prod-
uct pointing down.
1Fasten the differential pressure transmitters on the sup-
ply and extract air duct. Make sure that the distance (A)
is a minimum of 3 meter.
A
Example Topvex SC
2Fasten the pressure measuring taps.
Note:
Avoid measuring points with turbulent air flow. Perform the
measuring at a distance of 2 duct diameters before bends
and branching and at 6 duct diameters after bends and
branching.
a. Drill a 6 mm hole for the pressure measuring taps
on the supply and extract air duct.
b. Fasten the taps with the enclosed screws.
c. Connect the red tube to the supply air duct and the
blue tube to the extract air duct.
2

3Connect the other end of the tubes to the differential
pressure transmitter’s inlet ports.
Caution
Be careful when connecting the hoses to
the inlet ports, the thin inner connections
of the inlets are very sensitive. The lid
should be kept closed while performing
the connections, or the thin tubing might
detach from the sensor.
a. Connect the red tube from the supply air duct to +
on one of the pressure transmitter.
b. Connect the blue tube from the extract air duct to -
on the other pressure transmitter.
+
+
4Connect the cables according to 5.1 Wiring diagrams.
4.3 Description of the pressure
transmitter
1 2 3 4
AB C
D
1 2 3 4 5 6
E
Figure show dip-switches to the left, position OFF.
A. DIP-switches
B. Push button
C. Status LED
D. Sensor 1
E. Terminals
4.3.1 To set the pressure range on
the pressure transmitter
Dip-switch setting Pressure range (Pa)
2 = OFF, 3 = OFF, 4 = OFF 0...50
2 = ON, 3 = OFF, 4 = OFF 0...100
2 = OFF, 3 = ON, 4 = OFF 0...300
2 = ON, 3 = ON, 4 = OFF 0...500
2 = OFF, 3 = OFF, 4 = ON 0...700
2 = ON, 3 = OFF, 4 = ON 0...1000
2 = OFF, 3 = ON, 4 = ON 0...1250
4.3.2 To zero point calibrate the
pressure sensors
1. Disconnect the pressure ports before zero setting.
2. Let the product warm up for 10 minutes before attempt-
ing the procedure.
3. Quick press the push button. Zero point calibration takes
about 5 seconds. The yellow LED will light up while the
zero point calibration is in progress.
4. If the yellow LED starts blinking during the zero point cal-
ibration, the procedure has failed. Ensure that the pres-
sure ports are open and try again.
5. If the procedure still fails, a sensor error is present and
the product must be replaced.
4.3.3 To reset to factory settings
• Long press (10 s) the push button
The red and yellow LED lights will flash alternating for the
duration of the operation. The product will then reset and
restart.
4.3.4 Status LED light
The red LED lights up when the power is on and goes out
when the built-in sensory circuit is ready for use.
Flashing red LED after power-up:
The product has lost important system settings and must be
taken back to the factory for reprogramming.
Steady red LED during normal operation:
The product is damaged and should be returned or
discarded.
3

5 Technical data
5.1 Wiring diagrams
Abbreviation in wiring diagram Cable colour
YE Yellow
WH White
GN Green
BN Brown
PTE Pressure transmitter extract air
PTS Pressure transmitter supply air
T15, T16 Terminals in Topvex SR, TR, SC, TC control unit
G0, G, 42, 40 Terminals in Topvex FR, FC, SF control unit
5.2 Topvex SR/TR, SC/TC
WH
YE
BN
YE
BN
GNGN
WH
WH
YE
BN
1 2 3 4
1 2 3 4
24V
0V
AI5
T15
24V
0V
AI4
T16
PTE
PTS
WH
YE
BN
PTE
PTS
GNGN
Green cable should not be used. Isolate to avoid short circuit.
4

5.3 Topvex FR, FC, SF
WH
YE
BN
GN
YE
BN
GN
WH
YE
BN
GN
G
G0
41
40
WH
YE
BN
GB
G
G0
42
40
1 2 3 4
1 2 3 4
PTS
PTE
PTE
PTS
6 To configure the pressure
transmitter in the air
handling unit controller
6.1 For SR/TR, SC/TC, FC, FR
6.1.1 To log in
1. Open the log in window
2. Select service from drop down list
3. Type in password 0612
4. Press Login.
5

6.1.2 To start the configuration wizard
A configuration wizard is available from software version 4.1.
By using the wizard, the following steps in 6.1.3 To activate the pressure control function and 6.1.4 To allocate differential pres-
sure sensors can be omitted.
Configuration > Configuration wizard 2022-08-29
Set up Pressure control >
Configuration > Configuration wizard > Setup pressure control 2022-08-29
Analog outputs Sensor range Device Position
Pressure supply air 0-500 1Controller AI4
Pressure extract air 0-500 Pa1Controller AI5
Confirm In-/Outputs and complete setup >
1. The set pressure range in the pressure transmitter.
1. Select Configuration from navigation icons
2. Select Configuration wizard
3. Select Set up pressure control
4. Set sensor range
5. Select In-/Outputs
6. Select Confirm In-/Outputs and complete setup
7. Confirm and activate the selected configuration with Yes complete setup.
6.1.3 To activate the pressure control function
Configuration > Functions > Function activation 2022-08-29
Fan control type Pressure
1. Select Configuration from the navigation icons
2. Select Functions
3. Select Function activation
4. Select Pressure as Fan control type.
6.1.4 To allocate differential pressure sensors
Note:
Observe the different IO settings for different Topvex units
Configuration > I/O allocation settings > Analog inputs 2022-08-29
Analog inputs Device Position
6

Topvex SR, TR, SC, TC
Pressure supply air
Pressure extract air
Controller AI4
AI5
Topvex FR, FC
Pressure supply air
Pressure extract air
Controller UI2
UI1
Configuration > Analog inputs > Pressure supply air 2022-08-29
Sensor value at Vmin 0.0
Sensor value at Vmax 500.0
1. Select Configuration from the navigation icons
2. Select I/O allocation settings
3. Select Analog inputs
4. Select AI4 / UI2 signal for Pressure supply air
5. Select AI5 / UI1 signal for Pressure extract air
6. Select Pressure supply air
7. Set Sensor value at Vmin the same as the start point of the sensor’s selected measuring range
8. Set Sensor value at Vmax the same as the end point of the sensor’s selected measuring range
9. Go back to Analog inputs (use the navigation path Configuration > I/O allocation settings > Analog inputs)
10. Select Pressure extract air and repeat steps 7 and 8.
6.1.5 To adjust the fan pressure set points
Data settings> Fan control > Fan setpoints 2022-08-29
Setpoint low speed supply air fan 100 Pa
Setpoint low speed extract air fan 100 Pa
Setpoint normal speed supply air fan 200 Pa
Setpoint normal speed extract air fan 200 Pa
Setpoint high speed supply air fan 200 Pa
Setpoint high speed extract air fan 200 Pa
1. Select Data & settings from the navigation icons
2. Select Fan control
3. Select Fan setpoints
4. Select and adjust set points for the available fan speed levels.
6.1.6 To save local settings
When the installation is complete and all functions are tested, we recommend to save a local backup of the current configuration
in the controller.
Configuration > System settings > Save and restore settings 2022-08-29
7

Save commissioning settings Yes
1. Select Configuration from the navigation icons
2. Select System settings
3. Select Save and restore
4. Select Yes on Save commissioning settings.
6.2 For SF units
6.2.1 To log in
Log in to Administrator level with password 3333.
Menu level 1 Menu level 2 Menu level 3
Temperature
Air control
Time settings
→ Access rights
→ Log on
Log off
Change password
→ Log on
Enter password: 3333
Actual level: Admin
Note:
The grey-marked instructions is only for when Topvex SF have an external extract air fan installed.
6.2.2 To set the fan control type
Change the fan control to Pressure control.
Menu level 1 Menu level 2 Menu level 3
Manual/Auto
Settings
→ Configuration
Access rights
Sensor settings
Control function
→ Fan control
Extra sequence Y4
Fan control
Pressure control
6.2.3 To set the adjusted working range
Set the adjusted working range for the added VAV pressure transmitters in menu Configuration/Sensor setting.
Adjust SAF (supply air fan) and EAF (extract air fan) actual pressure range at 10,0 V.
Example: If pressure transmitter is set to 0...500 Pa set: 0,0 V: 0,0 Pa and 10,0 V : 500,0 Pa. Filter factor is not to be changed.
Menu level 1 Menu level 2 Menu level 3
Manual/Auto
Settings
→ Configuration
Access rights
Inputs/Outputs
→ Sensor settings
Control functions
Fan control
SAF pressure at 0,0 V: 0,0 Pa
10,0 V: XXX Pa
Filter factor ↓
EAF pressure at 0,0 V:0,0 Pa
10,0 V: XXX Pa
Filter factor
6.2.4 To set air control setpoint
Adjust the new Pressure ctrl SAF and Pressure ctrl EAF set points.
8

Menu level 1 Menu level 2 Menu level 3
Running mode
Temperature
→ Air control
Time settings
Pressure ctrl SAF
Actual: 0 Pa
Setp: 0 Pa →
↓
Pressure ctrl SAF
Setp 1/1: 200 Pa
Setp 1/2: 100 Pa
←
Pressure ctrl EAF
Actual: 0 Pa
Setp: 0 Pa →
↓
Pressure ctrl EAF
Setp 1/1: 200 Pa
Setp 1/2: 100 Pa
←
6.2.5 To set alarm limit
Deviation from pressure setpoint value
Menu level 1 Menu level 2 Menu level 3
Manual/Auto
→ Settings
Configuration
Access rights
Control temp
Control pressure
→ Alarm settings
→Alarm limits
Alarm delays
Restore alarm
Control dev SAF
25.0 Pa
Control dev EAF
25.0 Pa
6.2.6 To allocate in- and outputs
Menu level 1 Menu level 2 Menu level 3
Manual auto
Settings
→ Configuration
Access rights
→ Inputs/Outputs
Sensor settings
Control function
Fan control
AI
→ UI
DI
UI
Menu level 4 Menu level 5
UI1:→
Choose AI or DI sign
AI sign:Not used
DI sign:Not used
↓
UAI1:
Sign: EAF pressure
Raw value: NaN
Compensation: 0.0 °C
←
UI2:→
Choose AI or DI sign
AI sign: Not used
DI sign: Not used
UAI2:
Sign: SAF pressure
Raw value: NaN
Compensation: 0.0 °C
9

Document in original language 2022-09-21
382784 - 001
© Copyright Systemair AB
All rights reserved
EOE
Systemair AB reserves the rights to alter their products without notice. This also applies to products already ordered, as
long as it does not affect the previously agreed specifications.
Systemair Sverige AB
Industrivägen 3
SE-739 30 Skinnskatteberg
[phone]
[e-mail]
www.systemair.com
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