MAKING MODERN LIVING POSSIBLE
Danfoss Heating
SET 2E
Electronic 24 Hour Mini-Programmer
for Heating and Hot Water
Installation Guide
For a large print version of these instructions
please call Marketing on 0845 121 7400.
®
Certification Mark
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printed material. 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.
2
SET2E
Installation Instructions
SET2E
Electronic 24-Hour Mini-Programmer
for Heating and Hot Water
GB
Index
1.0 Installation Guide .....................................................................................4
2.0 System Overview .......................................................................................4
3.0 Installation ...................................................................................................4
3.1 Wiring .....................................................................................................6
3.2 Typical gravity DHW with pumped central heating ..............7
3.3 Typical fully pumped system with spring return zone
valve in heating ..................................................................................8
3.4 Typical fully pumped system with 3-port
mid-position valve .............................................................................9
4.0 Replacement ................................................................................................9
Danfoss Heating
3
GB
1.0 Installation Guide
Please Note:
This product should only be installed by a qualifi ed electrician or
competent heating installer and should be in accordance with the
current edition of the IEEE wiring regulations.
2.0 System Overview
Specifi cation
Power supply 230 ± 15% Vac, 50/60Hz
Switch action 2 x SPDT Type 1B
Switch rating
Timing accuracy ± 1 min/month
Power reserve minimum 10 hours
Enclosure rating IP30
Max. ambient temperature 45°C
Dimensions, mm (W, H, D) 158 x 98 x 38
Design standard EN 60730-2-7
Control Pollution Situation Degree 2
Rated Impulse Voltage 2.5kV
Ball Pressure Test 75°C
Max 264Vac, 50/60Hz, 3(1) A
3.0 Installation
1. Fix the wallplate to the wall or fl ush mounted box as required.
The connections are at the top and the vertical centre line of
the unit, at the position shown on the diagram C/L (in line with
terminal
).
2. Surface cables can only enter from below the unit. If mounted on
a fl ush mounted box, cables can enter from the rear through the
aperture in the wallplate.
3. For mains voltage applications a link must be fi tted between
terminals L and 2 and between 1 and 5.
4. Whilst the unit does not require an Earth connection, a terminal is
provided on the wallplate for Earth continuity purposes.
4
SET2E
Outline of
programmer
Leave at least
25mm below
product
Rear entry
cable access
Leave suffi cient space
for screwdriver access
C/L
Terminal
block
GB
Wall or
plasterbox
fi xing
Cable aperture
knockouts
5. Referring to the wiring diagrams on page 6-9, connect the unit as
shown.
6. Ensure all dust and debris are cleared from the area.
7. Locate the module on the latches at the bottom of the wallplate
and hinge upwards to fully engage the unit connectors into the
wallplate. Tighten the two fi xing screws to secure the unit to the
wallplate.
8. Before setting the programme, check the unit and circuit. Switch
on the mains supply and set the left-hand rocker switch to the
CONSTANT position and the right-hand rocker switch to the HW
+ CH position.
The red LED should now be illuminated. Adjust any remote
thermostats to check the services operate correctly.
9. Press the left-hand rocker switch to the OFF position and check
that both services do not operate.
10. Finally, return the left-hand rocker switch to TIMED and the righthand rocker switch back to HW + CH (winter) or HW (summer).
Danfoss Heating
5
GB
3.1 Wiring
NOTES:
FOR SET2E LINK
TERMINALS 1 & 5
FP975 ON A SET
WALLPLATE
TIMER
N/O
N/C
N/O
N/C
N
NOTE: For mains voltage applications links must be fi tted between
terminals L and 2 and between 1 and 5.
Typical wiring diagrams for various types of systems are shown on
the following pages.
Note: Whilst every attempt has been made to ensure the accuracy of this
information it is recommended that the specifi c information relating to
the ancillary controls is obtained from the manufacturers concerned.
L123
ON
COM
DHW
OFF
45
ON
COM
HTG
6
OFF
6
SET2E
3.2 Typical Gravity DHW With Pumped Central
Heating
D.H.W. HTG
Programmer
Terminals
Mains
Supply
N
L
3 amp fuse
L
ON OFF
ON OFF
N L 1 2 3 4 5 6
N
Room
Stat
GB
Boiler Pump
DHW = Domestic Hot Water
N
N
Danfoss Heating
7
3.3 Typical Fully Pumped System with Spring
Return Zone Valve in Heating
D.H.W. HTG
GB
Programmer
Terminals
Mains
N
Supply
L
Cyl.
Stat
N L 1 2 3 4 5 6
3 amp fuse
ON OFF
Room
Stat
N
ON OFF
L
Boiler &
Pump
N
HTG
valve
N
8
SET2E
3.4 Typical Fully Pumped System With 3-Port
Mid-Position Valve
D.H.W. HTG
Programmer
Terminals
Mains
N
Supply
L
Cyl.
Stat
3 amp fuse
L
ON OFF
ON OFF
N L 1 2 3 4 5 6
Room
Stat
N
GB
Boiler &
3-port
mid-pos
Pump
NN
valve
4.0 Replacement
Please see overleaf for a table containing replacement wiring
information. Some controls are connected in diff erent ways
depending upon the type of system and/or the controls which are
fi tted. If there is any doubt about the way in which the existing unit is
connected, please contact our Technical Services Department before
proceeding with replacement.
If the unit is to be used in association with a 6 wire Honeywell Y Plan, a
special wiring diagram may be required. Contact the Danfoss Randall
Technical Services Department for details.
Note: The SET2E is a direct replacement for a Danfoss Randall
SET2.
Danfoss Heating
9
GB
An additional
required where
terminal block is
ed leads (or pairs
these disconnect-
NOTE
This conversion
terminated
of leads) should be
replacement
applies only if..
Direct plug-in
4
& 6 are linked
Terminals 1 & 2
are linked and 5
Programme
selectors linked
Programme
selectors linked
Programme
selectors linked
10
MAINS WATER HEATING
DANFOSS RANDALL
N L ON COM OFF ON COM OFF
SET2E
with terminals L - 2 and 1 - 5
linked
NL 1 23 4 56 ABCD
DANFOSS RANDALL SET 2 N L 1 2 3 4 5 6
HORSTMANN DIAMOND 423 N L,1,3 2 - - 4 - - 5 6
HORSTMANN DIAMOND 424 N L,1,3 2 - - 4 - - 5
DANFOSS RANDALL 3060 & 3020P 1,7 6 4 - - 2 - - 3 5
DANFOSS RANDALL 102/102E 5 3,6 1 - - 2 - -
DANFOSS RANDALL 701 N L 3 6 4 1 5 2
HONEYWELL ST6200 N L 3 - 1 4 - 2
HORSTMANN CORAL 423 & 424 2,3 1 Boiler (8) - - AirStat (8) - - 4,7 5 6
DANFOSS RANDALL TSR2P 3 1,2 5,6 - - 7 - -
HORSTMANN DIADEM 425 N L 1 2 3 4 5 6
HORSTMANN DIADEM 525 N L 1 2 3 4 5 6
SET2E
LANDIS & GYR RWB2 N L 3 - 1 4 - 2
ABCD
2
ABC
GB
Programme
selectors linked
Programme
selectors linked
are linked
Terminals 1 & 6
Terminals 1 & 3
are linked
Programme
selectors linked
are linked
Terminals L & 4
Programme
selectors Linked
POTTERTON 423 N L,1,3 2 - - 4 - - 5 6
POTTERTON MINI-MINDER N L 3 - 1 4 - 2
Danfoss Heating
N,2 L 1,3 - - 4 - -
SWITCHMASTER 400 N L 3 - - 1 - 4 2
SWITCHMASTER 600 N L 3 - - 1 - - 2 4
SWITCHMASTER 900 & 9000 N L 3 - 4 1 - 2
VENNER VENOTROL N,A,M L,L,1 V - - S,F - - T,P O
VENNER VENOTROL 80 (Air Stat) N,1 3,4 L 2 - - A/S - - A/S, 5
POTTERTON EP2000 N L 3 - 1 4 5 2
SANGAMO M5 410 FORM 4 4,5 3 1,6 - 2 8 - 7
SANGAMO S409 FORMS 1 & 4 N,1,3 L 2 - - 5 - - 4,6
SANGAMO (EARLY MODEL)
S410 FORM 4
SMITH IND. CENTROLLER 100 N L 3 - - 2 - - 1 4
SMITH IND. CENTROLLER 60 1 2 5 - - 4 - - 3
SMITH IND. CENTROLLER 10 N L 3 - - 2 - - 1,4
SMITH IND. CENTROLLER 70 1 2 5 - - 4 - - 3 6
SMITH IND. CENTROLLER 1000 N L 3 - 1 4 - 2
SWITCHMASTER 320 & 350 N 4,L 3 - - 1 - -
VENNER VENOTROL 80 (Air Stat) N,1 3,4 L 2 - - 5 - -
11
Danfoss Randall Ltd.
Ampthill Road
Bedford MK42 9ER
Tel: 0845 1217 400
Fax: 0845 1217 515
Email: danfossrandall@danfoss.com
Website: www.danfoss-randall.co.uk
Part No. 8634v01s6-1 02/11
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