Plastec Variable Air C User Manual

Laboratory Airflow Monitors & Controls
TYPE C STANDARD &
NIGHT SETBACK
LED & DIGITAL - VAV SYSTEMS
Specifications and Owner’s Manual
PLASTEC® VENTILATION, INC.
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
Laboratory Airflow Monitors & Controls
TYPE C STANDARD & NIGHT SETBACK
LED & DIGITAL - VAV SYSTEM
General Description
BENEFITS
• Safety: air flow is maintained at required speed at all sash heights
• Energy savings: only the lowest required amount of air is exhausted therefore reducing energy bill
• User comfort: Low air speeds ensure comfortable noise level
• Ease of installation and maintenance
• Stable and accurate analogical sensor reading
• Attractive design: available in choice of LED or digital display
RANGE
Versions:
C LED: Monitors and controls air speed, LED lights
C DIGITAL: Monitors and controls air speed, digital read out in meter per second or feet per minute
FEATURES
• Audio and visual alarm
• 0 to 10V or 4-20mA VAV system to link to inverter
• 3 Pushbuttons: Fan On/Off, Light On/Off, Mute
• Automatic pre-purge with inverter
• 30s purge following fan switch off
• Alarm disabled when fan switch off
• Sash High indicator
• Auxiliary contact for fan make up, etc.
OPTIONS
Surface Box Mounting: Plastic enclosure to mount the face plate and to avoid profile cutting the
service panel.
Alarm Relay: A remote alarm can be triggered from a relay on the controller pcb.
Battery Back Up: Red LED alarm is still
functional up to 12 hours when unit loses power.
Custom Resin Stickers: Customizable resin
stickers with logo, address, etc.
INTERNATIONAL STANDARDS COMPLIANCE
In accordance with:
- European laboratory standard EN 14175-2
- Electromagnetic standards EN 61326 : 1997/A1 : 1998/A2 : 2001/A3 : 2003
(Test report RC-05-42060-1) US FCC Part 15 Class B edition 2005 (Test report RC-05­ 42060-2-A)
- European RoHS directive governing disposal and recycling of electronics
- French laboratory standard XPX 15203 of Sept. 1996
- CE
COMPONENTS
• Circuit Board: Panel mounted circuit board to
be installed vertically or horizontally onto fume cupboard with 2x Ø 2.8 mm / 0.11" screws. IP55 protection ensured by “O” ring seal. Face plate to be supplied with chemical resistant plastic sticker (horizontal or vertical) with control/push buttons on fascia. Surface box mounting optional.
• Numerical and Antistatic Sensor: To be installed
inside fume hood. Sensor measures air speed variations inside fume hood. Supplied with a
3.5 m / 11.48' (5 m optional) shielded cable with
pin connections onto controller circuit board.
• Power Supply: 115 VAC to 12 VDC power
transformer directly into controller circuit board. Comes with a wall plug and cord. Adaptor may be required to fit local power socket.
COLORS
Plastic fascia is available in:
- White (Standard)
PACKING
• Supplied in cardboard box which includes con-
troller circuit board, face plate, sensor and power transformer. Surface box mounting optional.
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Laboratory Airflow Monitors & Controls
TYPE C STANDARD & NIGHT SETBACK
LED & DIGITAL - VAV SYSTEM
Operating Principle
When the fume extraction fan is running, it causes negative pressure inside the fume cupboard. If the sash is lowered, the negative pressure become more intense causing air to be drawn through the sash opening at an increased velocity. Conversely, if the sash is raised the negative pressure becomes less intense and air velocity reduces.
If an opening is made in the wall of the fume cupboard, air will enter it at a velocity determined by the same negative pressure that is drawing air into the sash opening. By sensing the air velocity through an opening, we can determine its level at the sash opening.
PLASTEC or thermal anemometer into a hole in the cupboard and sending the air velocity measurement obtained to a display on the fascia panel. Based on air velocity measured, Plastec or decrease fan speed.
The air velocity level is displayed on the fascia either by LED illumination or digital read-out. An audible alarm will also sound if the air velocity is too low.
®
AirControl Type C exploits this by the placing of a numerical sensor,
®
AirControl C will send a signal to an inverter to either increase
SENSOR
Airflow Monitor
www.plastecvent.net
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
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Controller
Sensor
Laboratory Airflow Monitors & Controls
TYPE C STANDARD
LED & DIGITAL - VAV SYSTEM
Schematic AirControl C LED & Digital
Inverter System
115 VAC /12 VDC Power Supply
Hood Light on/off relay
Sensor
Signal Input
Air Make-up on/off relay
Sash High Alarm Input
0 to 10V or 4-20mA
OR
Motorized
Damper
Sash movement
=
Pressure decrease
or increase
OUTPUT:
0 to 10V
or
4-20mA
Air speed
monitoring & control
!
If air speed is low
Fan on/off relay
Frequency Inverter
230V – 1Ph input
Make-up
Fan
Frequency
Inverter
230V – 3Ph
Plastec® Extraction
Fan: Speed increase
or decrease
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
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Laboratory Airflow Monitors & Controls
TYPE C NIGHT SETBACK
LED & DIGITAL - VAV SYSTEM
Schematic AirControl C Night Setback
115 VAC /12 VDC Power Supply
Controller
Sensor
Sensor
Signal Input
Hood Light on/off contact
Sash movement
=
Pressure decrease
or increase
Sash High Alarm Input
Night Setback relay
OUTPUT
Air speed
monitoring & control
!
If airflow is low
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
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Laboratory Airflow Monitors & Controls
TYPE C STANDARD
LED & DIGITAL - VAV SYSTEM
Specifications
AirControl C LED
Part Number 819703 819704
1 green LED for normal air speed 1 green LED for normal air speed Display – Visual 1 red LED flashing for alarm "HI" for high air speed displayed No digital display 1 red LED flashing for alarm 3 digit display with velocity reading
Units
Display Range N/A 0 - 2.00 m/s / 0 - 400 FPM
Alarm Setpoint
Alarm Delay Selectable: 15s or 30s Selectable: 15s or 30s
Analog Output 0 - 10V or 4 - 20mA 0 - 10V or 4 - 20mA
Standard: below 0.39m/s / 78 FPM Standard: below 0.39m/s / 78 FPM
N/A meter per second (m/s) / FPM
AirControl C Digital
Alarm Indication
Alarm Mute
Light On/Off
Fan On/Off
Alarm Relay
Battery Back Up
Sash High Input
sash position switch has been tripped sash position switch has been tripped
Mounting Flush or surface box (option) Flush or surface box (option)
Calibration
Power Requirement 12VDC (power supply included) 12VDC (power supply included)
Orientation Vertical/Horizontal Vertical
Front fascia: 210L x 90W x 10D mm Front fascia: 210L x 90W x 10D mm
Monitor Dimensions (metric)
Front fascia: 8.27"L x 3.54"W x 0.39"D Front fascia: 8.27"L x 3.54"W x 0.39"D
Monitor Dimensions (U.S.)
Surface box: 8.07"L x 3.35"W x 0.55"D Surface box: 8.07"L x 3.35"W x 0.55"D
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
1 red LED flashing & audible buzzer 1 red LED flashing & audible buzzer
Yes, optional Yes, optional
Yes, optional Yes, optional
Audible and orange flashing LED indicate Audible and orange flashing LED indicate
Factory pre-calibrated @ 0.5m/s / 100 FPM
Recalibration possible Recalibration possible
Surface box: 205L x 85W x 14D mm Surface box: 205L x 85W x 14D mm
Factory pre-calibrated @ 0.5m/s / 100 FPM
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Laboratory Airflow Monitors & Controls
TYPE C NIGHT SETBACK
LED & DIGITAL - VAV SYSTEM
Specifications
AirControl C LED
Part Number 819703 819704
1 green LED for normal air speed 1 green LED for normal air speed Display – Visual 1 red LED flashing for alarm 1 red LED flashing for alarm No digital display 3 digit display with velocity reading
Units
Display Range N/A 0 - 2.00 m/s / 0 - 400 FPM
Alarm Setpoint
Alarm Delay Selectable: 15s or 30s Selectable: 15s or 30s
Analog Output 0-10V 0-10V
Alarm Indication
Standard: below 0.39m/s / 78 FPM Standard: below 0.39m/s / 78 FPM
1 red LED flashing & audible buzzer 1 red LED flashing & audible buzzer
N/A meter per second (m/s) / FPM
AirControl C Digital
Alarm Mute
Light On/Off
Night Setback On/Off
Alarm Relay
Battery Back Up
Sash High Input
sash position switch has been tripped sash position switch has been tripped
Mounting Flush or surface box (option) Flush or surface box (option)
Calibration
Power Requirement 12 VDC (power supply included) 12 VDC (power supply included)
Orientation Vertical/Horizontal Vertical
Front fascia: 210L x 90W x 10D mm Front fascia: 210L x 90W x 10D mm
Monitor Dimensions (metric)
Front fascia: 8.27"L x 3.54"W x 0.39"D Front fascia: 8.27"L x 3.54"W x 0.39"D
Monitor Dimensions (U.S.)
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
Audible and orange flashing LED indicate Audible and orange flashing LED indicate
Factory pre-calibrated @ 0.5m/s / 100 FPM
Surface box: 205L x 85W x 14D mm Surface box: 205L x 85W x 14D mm
Surface box: 8.07"L x 3.35"W x 0.55"D Surface box: 8.07"L x 3.35"W x 0.55"D
Yes, optional Yes, optional
Yes, optional Yes, optional
Factory pre-calibrated @ 0.5m/s / 100 FPM
Recalibration possible Recalibration possible
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Laboratory Airflow Monitors & Controls
TYPE C STANDARD & NIGHT SETBACK
LED & DIGITAL - VAV SYSTEM
Specifications
MONITOR & MOUNTING BOX
Mounting Box
35 mm / 1.38"
24 mm / 0.94"
90 mm / 3.54"
210 mm / 8.27"
Face Plate
Ø 2.8 mm / 0.11"
PANEL CUTOUT DIMENSION
17 mm / 0.67"
7.5 mm / 0.30"
NOTE: All dimensions in mm / inches
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
SENSOR
65 mm / 2.56"
28 mm / 1.10"
Cable L = 3.5m /
137.76” (11.48')
40 mm / 1.57"
Ø 22 mm / 0.87"
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Laboratory Airflow Monitors & Controls
Front plate/fascia
Customizable Resin Sticker
TYPE C STANDARD
LED & DIGITAL - VAV SYSTEM
Overall View
Chemical and pressure resistant sticker
Digital display. Not applicable on LED version
“HI” displayed:
Airow too high
One green LED lit up:
Airow OK
Flashing red LED for alarm: air speed too low
Sash high LED. Starts
ashing when sash
position switch has been tripped
LED fan on/off indicator If fan on, LED orange
Fan on/off push button
Alarm Mute push button
LED light on/off indicator If light on, LED orange
Light on/off push button
Calibration LED. Should be off when calibration is completed
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
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Laboratory Airflow Monitors & Controls
TYPE C NIGHT SETBACK
Front plate/fascia
Customizable Resin Sticker
LED & DIGITAL - VAV SYSTEM
Overall View
Chemical and pressure resistant sticker
Digital display in m/s or fpm
“HI” displayed:
Airow too high
One green LED lit up:
Airow OK
Flashing red LED for alarm: air speed too low
Sash high LED. Starts
ashing when sash
position switch has been tripped
Night Setback on/off indicator. If LED lit up, night setback is on. Alarm cannot sound
Alarm Mute on/off push button
LED light on/off indicator If light on, LED orange
Light on/off push button
Calibration LED. Should be off when calibration is completed
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
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Laboratory Airflow Monitors & Controls
TYPE C STANDARD & NIGHT SETBACK
LED & DIGITAL - VAV SYSTEM
Contacts & Features
Contact Light On/Off Control
220v 3A
VENT1: Fume fan to
Alarm Relay
220v 3A
(optional)
inverter ‘run’ relay VENT2: Make-up fan 220v 3A
Power Supply: 115 VAC /12 VDC input
Resistance to be cut
for night setback use
Sash High Contact
0-10V signal to link to
inverter control
Reset
Sensor Connection
Settings:
1. On: Alarm always active Off: Alarm disabled when fan is off
2. Alarm delay setting: On: 30 seconds Off: 15 seconds
Auxiliary contact or
Night setback contact
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
Battery back up Rechargeable (optional)
ON
OFF
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Laboratory Airflow Monitors & Controls
TYPE C STANDARD & NIGHT SETBACK
LED & DIGITAL - VAV SYSTEM
Installation, Calibration & Alarm Test
INSTALLATION
1) Drill a Ø 23mm / 0.91" hole either in the top or side of the fume cupboard to allow sensor positioning. Make sure sensor is not in a turbulent zone where the pressure can fluctuate but where it can monitor stable changes in pressure. Attention should be paid to dead zones near the top of the fume cupboard.
2) Proceed with wiring as seen on page “Contacts & Features”.
3) Position and secure monitor to service panel of the fume cupboard with the two self-tapping screws supplied. Do not forget to position “O” ring seal into the moulded groove in the back of the face plate.
CONTROLLER SET UP PROCEDURE
All monitors unless indicated otherwise are factory pre-calibrated at 0.5 m/s or 100 FPM. If you need a different sensor calibration and/or displayed speed reading:
1) Make sure that controller is properly linked to inverter and that the ventilation is working. You
need an anemometer to do this set up.
2) Push or LED is on and the red LED is flashing indicating controller is in manual set up mode.
3) Raise the fume cupboard to its test height e.g. 500mm/19.69".
4) Push is reading required air speed. Every button press increases or decreases the speed of 0.5V producing one beep.
The maximum value is 10V, the minimum is 0.3V.
For model without digital display (819703), please go directly to step 6.
5) For digital display model (819704), press “Reset” button at the back of the controller to change
the required speed display from 0.3 m/s/59 FPM to 0.7 m/s /138 FPM, using value will be memorized as the set point.
6) Wait for 15 seconds or so for air speed to stabilize.
7) To return to “AUTO” mode, push
the green LED is illuminated: new calibration (above or equal at 0.2 m/s) is accepted.
for more than 5 seconds, then release and push simultaneously
for Night Setback
or
to increase or to decrease
within the following 5 seconds. Buzzer sounds twice, the green
the fan speed via the inverter until the anemometer
again until the buzzer beeps 3 times (about 3 seconds) and
for Standard
and
. The
This is automatically done after 7 minutes in manual mode.
The buzzer beeps 10 times in case of incorrect calibration.
All updated information is stored in an internal memory which saves and holds the data even in case of power cut.
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
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Laboratory Airflow Monitors & Controls
TYPE C STANDARD & NIGHT SETBACK
LED & DIGITAL - VAV SYSTEM
Installation, Calibration & Alarm Test
VELOCITY TYPE
To change Digital readout from/to m/s to FPM:
Press simultaneously the following buttons:
until buzzer sounds (about 5 seconds).
DISPLAY MESSAGES
The display will show “HI” for an airflow superior to 1 m/s / 96 FPM and “LO” for an airflow inferior to
0.20 m/s / 40 FPM.
In case of faulty, improper or absent sensor, the display will show “PB”.
FACTORY DATA RESET
Press “Reset” (at the back of the controller) for 15 seconds. Buzzer sounds 5 times.
When using this feature, you restore factory default settings: set point and display at 0.5 m/s / 100 FPM, 7V output to the inverter and all relays and LEDs deactivated.
This operation should be imperatively done in “Auto” mode.
TEST MODE
Test mode is to confirm that all functions are operational. To access test mode, follow this procedure:
1) Press simultaneously following buttons:
* Buzzer sounds twice
2) Press the 3 buttons alternately.
* Buzzer sounds 10 times if malfunction
In case of faulty sensor, the display will show “PB”.
* Buzzer sounds 3 times indicating normal operating mode
for 2 seconds for Night Setback
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
for 2 seconds for Standard or
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Laboratory Airflow Monitors & Controls
TYPE C STANDARD & NIGHT SETBACK
LED & DIGITAL - VAV SYSTEM
Maintenance, Troubleshooting & Warranty
MAINTENANCE
Front plate and stickers of airflow monitor may be cleaned with mild soap and water on a damp cloth to remove finger marks, oils and residue. Do not use abrasives. Do not allow liquids to enter the plastic casing. Dry the monitor thoroughly after cleaning.
TROUBLESHOOTING
PROBLEM CHECK
No indicators Power supply may not be plugged into AC supply.
Improper alarm setpoint Airflow sensor is factory precalibrated at 0.5 m/s or 100 FPM.
Alarm setpoint may not be accurate if sensor is not properly located. Sensor needs to be recalibrated if setpoint is different than
0.5 m/s or 100 FPM. Follow Sensor Recalibration Procedure on page 6.
Alarm is too sensitive, Change alarm delay setting to 15s or 30s if already set to 0. See buzzer rings often for contact & features section. short periods of time
WARRANTY
PLASTEC® Ventilation, Inc. warrants its equipment, products and parts, to be free from defects in
workmanship and material under normal use and service for one year after delivery to the first user. Product must be returned to point of purchase, with dated bill of sale, within one year of purchase. If factory return is required, please contact distributor first.
2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
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