Seat C 2SP Bedienungsanleitung

Type C 2SP remote

controller

REF 819756/819757

The type C 2-speed remote controller is a safety device for controlling air flow regulation

at low and high speed depending on the position of the sash.

A speed sensor is used to determine the flow rate. Audible and visual alarm is set off in

case of insufficient speed or too high sash height and other malfunctions. The controller

engages the second gear by means of a contactor placed in the path of the sash.

The remote HMI is used to control the fume cupboard ventilation and to carry out the

following adjustments on site.

This controller complies with EN 14175 and RoHS Standards.

 

 
 
 
 
 
Table of contents 
Presentation .................................................................................................................................... 3 
1. HMI (Human Machine Interface) ................................................................................................ 3 
2. CPU (Central Processing Unit) ..................................................................................................... 3 
3. Schematic diagram ...................................................................................................................... 4 
4. Connector specifications ............................................................................................................. 5 
Installation and mounting ............................................................................................................... 6 
1. Dimensions.................................................................................................................................. 6 
2. Positioning on the fume hood..................................................................................................... 7 
3. Cutting template ......................................................................................................................... 8 
4. Installation tips............................................................................................................................ 9 
Wiring diagram.............................................................................................................................. 10 
Adjustment procedure .................................................................................................................. 11 
Factory rest.................................................................................................................................... 13 
Test mode...................................................................................................................................... 13 
Change the audible alarm delay.................................................................................................... 14 
Error messages (digital display option) ......................................................................................... 14 
FAQ................................................................................................................................................ 14 
Maintenance.............................................................................................................................. 15 
Warranty.................................................................................................................................... 15 
 
 
 
02/11/2021 

1. Presentation

The remote type C 2SP remote controller consists of a small HMI, easily installed on a fume

hood, and a central processor.

1.1. HMI (Human Machine Interface)

1.2. CPU (Central Processing Unit)

Display

(Option)

Green LED: air flow OK

Red LED: insufficient air flow

Orange LED: Sash too high

Yellow LED: Ventilation ON/OFF

Push button: ON/OFF ventilation

Yellow LED: Lighting ON/OFF

Push button: ON/OFF lighting

Orange LED: auxiliary faults

Push button: stop buzzer

VENT1 : ON/OFF

ventilation relay

VENT2 : ON/OFF

ventilation relay

Alarm contact

Light relay

Overtaking sash

contact

Second velocity

switch

Output 0/10V

Transformer 230v/12v

connector

Speed probe

connector

Push-button

velocity display

Cut the resistance to activate

the night setback mode

Remote HMI

connector

1.3. Schematic diagram

220v power

supply

FAN1 ON/OFF

0/10V

220v

power

supply

Switch sash

position

Velocity probe

Deported HMI CPU box

Second

velocity switch

The remote type C 2-speed controller is used to control the airflow of a fume hood.

Pressing the ventilation ON/OFF button on the remote HMI closes the two relays VENT 1 and 2, which

unlocks the drive. The controller then sends a 0/10v signal that the drive will interpret in order to change

the motor rotation speed and the flow rate. This is a two-speed controller: the CPU sends a fixed voltage

when the sash is low and another fixed voltage when it is high.

A speed sensor permits to measure whether the suction flow is sufficient (≥0.4 m/s) and indicates the

ventilation status by a green and red LED.

The front panel allows you to control the operation of the fume hood and in particular:

-An ON/OFF for lighting

-An ON/OFF for ventilation

-An alarm stop button

1.4. Connector specifications

Power supply

Electrical transformer 230v/12v 500mA. (delivered with)

VENT1/FAN1

ON/OFF Ventilation relay driving by

Disconnection voltage: 120v

Disconnection current: 0.5 A

VENT2/FAN2

Same VENT1

0/10v

0/10v output which returns a voltage according to the speed

measured by the sensor. This output must be sent to the

frequency inverter.

LIGHT

ON/OFF lighting relay driving by

Disconnection voltage: 220v

Disconnection current: 3 A

ALARM

Relay controlled by alarm activation. Normally open contact

Disconnection voltage: 120v

Disconnection current: 0.5 A

SASH Open

Sash contact which triggers a visual and audible alarm.

IDLE

Sash Contact which toggles from low speed to high speed.

2. Installation and mounting

2.1. Dimensions

HMI

CPU

Speed sensor

65 mm

40 mm

28 mm

22 mm

2.2. Positioning on the fume hood

The speed sensor must be positioned on

the fume hood ceiling in one of the two

positions shown in the diagram.

These locations must be respected so that

the probe is accurate.

Drill a 22mm diameter hole and put the

speed sensor in it.

An adhesive is provided on the sensor to

fix it correctly to the fume hood and

prevent leaks.

Where to install the speed sensor?

500mm

150 mm

Vertical HMI are usually attached to

the side frame of fume hoods.

Horizontal HMI’s can be set at the

user’s convenience.

◌

To comply with EN 14175

standard, you must install a

sash contact.

The sash contact must be fixed so that

it sets off when the sash exceeds

400mm or 500mm.

◌

The 2nd gear contact is installed

approximately 150mm above the work

surface.

◌

You can install the CPU

in the false ceiling of

the fume cupboard.

The controller is delivered with

a 2,5 meters cable.

2.3. Cutting template

If you want to install your fume hood controller without the surface bow mounting, you will

need to make the following cuts:

31mm

110mm

2.4. Installation tips

•Do not install the sensor on the extraction tube above the fume hood

•Avoid installing the sensor in a dead zone of the fume cupboard

•The probe must pass entirely through the fume cupboard ceiling. Otherwise, you

must use a 25mm PVC tube to extend the outlet.

•A speed of 0.2 m/s minimum must be measured through the sensor to ensure proper

operation.

•When adjusting the controllers, it is necessary that:

oThe fans are running

oThe laboratory is completely closed (doors, windows, etc.)

oHave an anemometer

•Pay attention to motor connections (star or delta)

230V single phase

power supply

400V three phases

power supply

400V three phases

output

230V three phases

output

DELTA

STAR

3. Wiring diagram

220v power

supply

220v power

supply

0/10V

ON/OFF

ventilation

Switch sash

position

Second velocity

switch

Switch sash position

2nd speed switch

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