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Danfoss Heating

13

GB

Please see overleaf for a table containing replacement wiring 
information. 

Some time controls are connected in diff erent ways depending upon 
the type of system and/or the controls which are fi tted.  Consult 
the column headed “

NOTE: The conversion applies only if....

” 

to determine how the SET3M programmer’s GRAVITY or PUMPED 
link should be set. If there is any doubt about the way in which the 
existing programmer is connected, please contact our Technical 
Services Department before proceeding with replacement.

Note: The SET3M is a direct plug-in replacement for any 
existing programmers using the British Gas Standard Wallplate. 
This includes the Horstmann 425 Tiara and Diadem electro-
mechanical and 525 & 527 electronic programmers. 

 

4.0 Replacement

Summary of Contents for SET3M

Page 1: ...SET3M Electro Mechanical 24 Hour Programmer for Heating and Hot Water Installation Guide Danfoss Heating MAKING MODERN LIVING POSSIBLE...

Page 2: ...n 0845 121 7400 Danfoss can accept no responsibility for possible errors in catalogues brochures and other printed material All trademarks in this material are property of the respective companies Dan...

Page 3: ...ity DHW Pumped HTG 7 3 3 Typical Fully Pumped System with Spring Return Zone Valve in Heating 8 3 4 Typical Gravity DHW Pumped HTG with Spring Return Zone Valve in DHW 9 3 5 Typical Fully Pumped Syste...

Page 4: ...trician or competent heating installer and should be in accordance with the current edition of the IEEE wiring regulations 1 Fix the wallplate to the wall or ush mounted box as required The connection...

Page 5: ...st and debris are cleared from the area 8 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 xing...

Page 6: ...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 speci c information relating to the ancillary...

Page 7: ...r Danfoss Randall products suitable for use with above circuit RMT room thermostat 3 2 Typical Gravity DHW Pumped HTG Boiler Pump N N L 1 2 3 4 5 6 Terminals Mains Supply 3 amp fuse Room Stat N L D H...

Page 8: ...cts suitable for use with above circuit AT cylinder thermostat RMT room thermostat HP22 or HP28 motorised zone valve with spring return actuator and SPST auxiliary switch Boiler and Pump S R Z V in HT...

Page 9: ...all products suitable for use with above circuit AT cylinder thermostat RMT room thermostat HP28C motorised zone valve with spring return actuator and SPDT auxiliary switch S R Z V in DHW N L 1 2 3 4...

Page 10: ...products suitable for use with above circuit AT cylinder thermostat RMT room thermostat HS3 3 port mid position valve with spring return actuator Boiler and Pump 3 port mid position valve N N L 1 2 3...

Page 11: ...suitable for use with above circuit AT cylinder thermostat RMT room thermostat 2 x HP22 or HP28 motorised zone valve with spring return actuator and SPST auxiliary switch S R Z V in DHW N L 1 2 3 4 5...

Page 12: ...ach Service Other Danfoss Randall products suitable for use with above circuit AT cylinder thermostat RMT room thermostat F M Z V in DHW Boiler and Pump N N L 1 2 3 4 5 6 Terminals Mains Supply 3 amp...

Page 13: ...o determine how the SET3M programmer s GRAVITY or PUMPED link should be set If there is any doubt about the way in which the existing programmer is connected please contact our Technical Services Depa...

Page 14: ...methyst 7 10 2 3 1 5 4 7 6 8 Horstmann 424 GEM 2 3 1 1 0 4 5 6 7 8 9 Terminals 5 8 10 are linked Horstmann Leucite 423 424 2 1 3 5 4 6 7 8 Terminals 5 7 are linked Honeywell ST669 N L 6 8 7 3 5 4 Land...

Page 15: ...Centroller 90 1 2 5 4 3 6 Smith Ind Centroller 1000 N L 3 1 4 2 Pumped Gravity link is set to Pumped Switchmaster 800 805 N L 3 4 1 2 Switchmaster 900 9000 N L 3 4 1 2 Pumped Gravity link is set to P...

Page 16: ...Part No 3547v01 03 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...

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