Danfoss CET 2000B-RF Data sheet

Datasheet

CET 2000B-RF
Wireless Electronic Cylinder Thermostat

Features

The CET 2000B-RF is a battery powered RF cylinder
thermostat which measures cylinder temperature
using a strap-on cylinder temperature sensor.
The sensor is tted to the cylinder wall and wires
directly to the thermostat, which is normally
located adjacent to the cylinder.

The clamp-on sensor comes complete with a
spacer piece to enable installation with most
thicknesses of cylinder insulation (25-55mm).

A receiver unit is mounted next to the boiler or
zone valve and responds to commands issued by
the thermostat over secure wireless connection.
This avoids the need for wiring between the
thermostat and boiler or zone valve, reducing
installation time and cabling.

This arrangement is perfectly suited for new
installations where furnishings prohibit running
recessed or surface mounted cabling, and in
existing installations where the cylinder is being
moved or replaced.

The CET2000B-RF includes a large easy to read
LCD display which is backlit for viewing in dimly
lit locations.

Hot water temperature adjustment is made by
simple up/down buttons and the digital display
allows acurate setting. In normal operation the
display will show the cylinder temperature, when
the buttons are pressed, the display changes and
ashes the set temperature required.

A ame icon is displayed whenever the thermostat
is calling for hot water demand and an aerial icon
conrms that the thermostat is connected to the
receiver.

The Thermostat can be placed in a standby mode
where hot water isn’t required for prolonged
periods or where tampering is an issue the set
temperature can be locked, both modes indicated
by icons on the display.

The display also gives indication when the
batteries need replacing and should there be
an issue with the cylinder sensor error codes are
shown.

Part No. 223v01 06/15

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Datasheet

ELECTRONICS

N

L

N

L

2

3

4

COM

ON

OFF

230Vac

1

CET 2000B-RF Wireless Cylinder Thermostat

Thermostat Specications

Receiver Specications

Wireless Cylinder Thermostat CET 2000B-RF

Code no. (including RX1-S single channel receiver) 087N727900

Temperature range 40-65°C

Clamp-on temperature sensor •

Operating frequency 433.92 MHz <1mW ERP

Maximum range 30 metres

Power supply 2 x AA alkaline batteries

Maximum ambient temperature 45°C

IP Rating IP20

Dimensions, setting module (mm) 84 wide x 84 high x 35 deep

Dimensions, clamp-on sensor (mm)

(1)

Ensure no large metal objects are between thermostat and receiver as these will interfere with radio signal.

(2)

79mm depth is with spacer for use with high insulation cylinder.

Receiver Features RX1-S

Type Single Channel Receiver

Power supply (receivers) 230 Vac, 50/60 Hz

Contact details 1 x SPDT

Output Volt Free

Contact rating 3A (1) at 230 Vac

IP Rating IP40

Dimensions (mm) 84 wide x 84 high x 28 deep

(2)

49 wide x 49 high x 45 (or 79) deep

Wiring Diagrams

CET 2000B-RF

ELECTRONICS

1

CS2 TANK

SENSOR

RX1-S

3

2

Note: For mains voltage applications link terminals L and 2.

2

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Datasheet

Pump

brown

orange

brown

orange

Boiler

CET 2000B-RF Wireless Cylinder Thermostat

Applications Examples

Wireless Heating and Hot Water Control, using 2 x 2 Port Valves

FP715 Programmer

FP715 Programmer

ELECTRONICS

N

L

1

HW OFF

230Vac

N L

2

HTG OFF

3

HW ON

N L

4

HTG ON

Sw.L

RX1-S Receiver -

paired to RET2000B-RF

ELECTRONICS

N

L

1

grey

2

blue

RX1-S Receiver -

paired to CET2000B-RF

ELECTRONICS

N

3

L

1

grey

blue

3

2

Hard Wired Heating with Wireless Hot Water Control, 2 x 2 Port Valves

FP715 Programmer

FP715 Programmer

ELECTRONICS

N

L

1

HW OFF

230Vac

N L

Pump

2

HTG OFF

HW ON

N L

Boiler

RET1000MS

Room Thermostat

N

L

blue

2

brown

4

3

HTG ON

Sw.L

grey

orange

Heating 2 Port Valve

RX1-S Receiver -

paired to CET2000B-RF

ELECTRONICS

N

L

orange

Hot Water 2 Port Valve

3

2

1

grey

blue

brown

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Datasheet

CET 2000B-RF Wireless Cylinder Thermostat

Wireless Heating and Hot Water Control, with 3 Port Mid Position Valve

FP715 Programmer

FP715 Programmer

ELECTRONICS

N

L

1

HW OFF

230Vac

2

HTG OFF

N L

Pump

HW ON

RX1-S Receiver -

paired to RET2000B-RF

ELECTRONICS

4

3

HTG ON

N

N L

Boiler

L

Sw.L

1

blue

3 Port Mid-Position Valve

3

2

brown/

white

orange

RX1-S Receiver -

paired to CET2000B-RF

ELECTRONICS

N

L

grey

2

1

Hard Wired Heating with Wireless Hot Water Control, 3 Port Mid-Position Valve

3

FP715 Programmer

FP715 Programmer

ELECTRONICS

N

L

1

2

HTG OFF

HW OFF

230Vac

Danfoss can accept no responsibility for possible errors in catalogues, brochures, and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already
on order provided that such alterations can be made without subsequent changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

3

HW ON

HTG ON

4

RET1000MS

Room Thermostat

N

L

2

N L

Pump

N L

Boiler

RX1-S Receiver -

paired to CET2000B-RF

ELECTRONICS

N

L

SW.L

1

blue

3 Port Mid-Position Valve

brown/

3

2

orange

grey

white

Danfoss Ltd.

Ampthill Road
Bedford MK42 9ER
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.heating.danfoss.co.uk

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Part No. 223v01 06/15

VDAGC102