Danfoss RET 24, RET 230 Data sheet [sl]
Data Sheet Electronic Room Thermostat
RET 24 and RET 230
The RET 230 and RET 24 are a range of electronic
room thermostats offering improved thermal
performance and status indication compared to that of
electro-mechanical equivalents.
The range comprises of mains voltage versions, RET
230, and low voltage 24 V versions, type RET 24.
For ease of mounting, RET is based upon a wallplate
construction which is fitted and wired before the
thermostat is mounted.
Additional features available in the RET range include:
- Electronic accelerator heater
- LED status indication
- Night set-back option
- Voltage free outputs
Please refer to the table below for details.
Dimensions
Ordering Codes and
Data
3
78
86
85 8
42
RET Electronic Room Thermostats
Type Code No. Voltage Accelerator Set-back Power On Stat Calling Comment
RET24 087N7014 24 Vac ll
RET24VF 087N7016 24 Vac llVolt Free
RET24NSB 087N7018 24 Vac ll l (4) achieved by using
RET230 087N7004 220/240 Vac ll
RET230L 087N7006 220/240 Vac lll
RET230VF 087N7008 220/240 Vac llVolt Free
RET230NSB 087N7010 220/240 Vac lll (3) l achieved by using
(1) 'Power On' indicator is lit when power is applied to thermostat (left hand LED).
(2) 'Calling' indicator is lit when thermostat relay is closed and calling for heat (right hand LED).
(3) In Night Set-Back version, 'Power On' LED changes colour during night set-back period (left hand LED).
(4) In RET 24NSB mode, left hand LED is lit during night set-back period.
Specifications RET24 RET24VF RET230F RET230C RET230 RET230VF
Switching Differential < 1K < 1K < 1K < 1K < 1K < 1K
Temperature Range 5 - 30°C 5 - 30°C 5 - 10°C 5 - 30°C 5 - 30°C 5 - 30°C
Operating Voltage 24Vac 24Vac 220/240Vac 220/240Vac 220/240Vac 220/240Vac
Switch Type (common linked int.) SPDT - SPST SPST SPDT Switch Type (voltage free contacts) - SPDT - - - SPDT
Contact Current Rating 3(1)A 3(1)A 3(1)A 3(1)A 3(1)A 3(1)A
Locking & Limiting Feature Yes Yes Yes Yes Yes Yes
Dimensions (mm) 86 High 86 High 86 High 86 High 86 High 86 High
Operating Electronic Night LED Status Indicators
(1) (2)
Contacts
Night set-back is
external time control
Contacts
Night set-back is
external time control
RET24NSB RET230L RET230NSB
85 Wide 85 Wide 85 Wide 85 Wide 85 Wide 85 Wide
42 Deep 42 Deep 42 Deep 42 Deep 42 Deep 42 Deep
1
Data Sheet Electronic Room Thermostat RET 24 and RET 230
RET 230
220/
240V
N
L
RET 230VF
ELECTRONICS
L
N
°c
3
2
NCC
NO
Voltage Free
°c
4
220/
240V
RET230, RET230L & RET230C
ELECTRONICS
N
L
N
1)
RET 230C has SPST contacts.
Typical Application - Multiplezones - RET230's NSB controlled by one timeswitch.
220/
240V
Timeswitch with volt
free contacts
N
L
N
L
RET 230NSB RET 230NSB RET 230NSB
°c
ELECTRONICS
N L 1
°c
2
NC NOC
4
3
ELECTRONICS
N L 1 23
Voltage Free
L
°c
3 4
°c
NC
C
Voltage Free
NO
1)
°c
220/
240V
°c
4
RET 230NSB
ELECTRONICS
C
L 1
N 234
N
L
ELECTRONICS
N L 1
Voltage Free
C
2
°c
NC NO
°c
NC
3
NO
°c
°c
4
Voltage Free
RET 24
24V
L
N
RET 24VF
ELECTRONICS
B 3
A
°c
2
Voltage Free
RET 24
°c
4
A
L
24V
N
Typical Application - Multiplezones - RET24's NSB controlled by one Timeswitch.
24V
Timeswitch with volt
free contacts
N
L
N
L
RET 24NSB RET 24NSB RET 24NSB
°c
ELECTRONICS
A B C
°c
2
NC NOC
4
3
ELECTRONICS
A B C 23
Voltage Free
Danfoss Randall can accept no responsibility for possible errors in catalogues, brochures and other printed material, and 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.
°c
ELECTRONICS
B
C
°c
3 4
°c
°c
NC
NO
4
Voltage Free
24V
RET 24NSB
ELECTRONICS
B C
A 234
C
L
N
ELECTRONICS
A B C
Voltage Free
C
2
Voltage Free
°c
NC NO
°c
NC
3
NO
°c
°c
4
Danfoss Randall Ltd
Ampthill Road
Bedford, MK42 9ER
Tel: (01234) 364621 Fax: (01234) 219705
Email: danfossrandall@danfoss.com
Website: www.danfoss-randall.co.uk
2
Part No: 294 Iss.6. 08/99
Loading...