Drayton RTS1 Thermostat Installation instructions


Drayton RTS1 Thermostat 


RTS Thermostat Installation instructions


  • RTS1: Standard heating thermostat
  • RTS2 Heating thermostat with call for heat LED indicator
  • RTS3: Indoor frost thermostat
  • RTS4 Volt free heating/cooling change over switch
  • RTS6: Range limited heating thermostat
  • RTS9 & 10: Volt free heating/cooling changeover switch with call for heating LED indicator

RTS thermostats are ELECTRONIC with a relay output. Unless connected to a 230V mains supply the relay will not operate, no ‘click’ will be heard and the call for heat contact will remain open.


Care should be taken to mount the thermostat in a position which is not subject to direct sunlight or draughts. Preferably it should be mounted on an inside wall about 1.5m (5ft) above the floor in a position where it can respond to room temperature but away from the direct influence of radiators or other appliances giving off heat.
Note: If the thermostat is to be used as a frost protection device it should be located in the coldest part of the premises.


  1. Loosen the securing screws, remove the wall plate and, if surface wiring is to be used, snap out the cable entry strip on the bottom edge of the wall-plate with a pair of pliers.
  2. Fix the wall plate, and terminals at the top, either directly onto a flat wall using wall plugs and No 6 x 1” woodscrews or on a flush mounting single conduit box using M 3.5 x 14 screws.
  3. Complete the wiring to the wall plate in accordance with the relevant diagram shown overleaf in accordance with I.E.E. regulations.
    Note: The thermostat is for fixed wiring only and is double insulated, the earthing continuity (loop) terminal is only provided for convenience.
  4. Plug the thermostat onto the wall plate and tighten the securing screws.
  5. Before switching on the mains ENSURE THE CIRCUIT FUSE IS 3A.
    Disconnect the mains supply before fitting or removing from wall plate. A switch having a contact separation of at least 3mm in all poles must be incorporated in the fixed wiring as a means of providing full disconnection of the mains supply.


  1. Set the desired room temperature on the control knob against the setting mark.
  2. The setting range may be limited or a particular setting locked through the use of the mechanism to be found under the control knob.
  3. To adjust the limiters first set the thermostat to the desired temperature and then carefully pull off the knob.
  4. Lift and rotate the two limiting arms to re-position them in the required notches.
  5. Replace the knob with the previously set temperature against the setting mark.

Technical data

  • Electrical supply: 230V ac 50Hz fused 3A
    Double-insulated (no earth required)
  • Temp. range: RTS1, 2, 4 & 9 10° to 30°C
    RTS3 (Frost) 3° to 10°C
    RTS6 5° to 23°C
    RTS10 14° to 30°C
  • Switch type: RTS 1, 2 & 3 S.P.S.T 2(1)A 230V ac live output
    RTS4, 9 & 10 S.P.D.T 2(1)A 230V ac volt free
  • Temp. sensor: Electronic

Wiring (schematic)

Note: It is essential to make a neutral connection to terminal N.


Note: Link between terminals L and 1 if mains voltage is required on the thermostat switch.


The RTS room thermostat replaces earlier models of both ACL and Drayton room thermostats subject to a maximum load of 2(1)A 230V ac. The wiring conversion between these models is:

TS142 TA350 Roomstat 1,2 4, 6,
RT (E) & 3 9 & 10
Live supply                1 1 L L
Neutral                     4 4 N N
Call for heat               2 3 2 3 3
Heating satisfied         – 2 3 2
Volt free                    – 1 1
Earth connection      E 5

Conforms to the essential requirements of the following  directives:

  • 89/336/EEC – Electromagnetic compatibility
  • 73/23/EEC – Low voltage directive

Room thermostats

Make Model Ear Ne Liv Co De Sat
Drayton RTS 1 & 2 N L 3
Drayton RTS 4, 5, 6, 9 & 10 N L 1 3 2
Drayton Digistat 1 1 3 2
ACL Lifestyle PT271/371 N L 1 3 2
ACL Lifestyle TS 142 E 4 1 2
ACL Lifestyle TA 350 5 1 3 2
Drayton Digistat (old version) 4 1 2 3
Drayton RT & RTE 4 1 2 3
Danfoss Randall TP1 E N L 1 2
Danfoss Randall RT1. TP2, 3, 4 & 5 1 3 2
Danfoss Randall RD3, RD3A 4 1 2
Danfoss Randall RTC, RTM, RSR E N 3 1 2
Danfoss Randall R504 N 3 1 2
Honeywell 6060, 6061, 6063 2 1 3 4
Honeywell CT200 A B C
Horstman HRT 1 E 4 1 2
Landis & Gyr RAD 1 E 1 2 3
Potterton PRT 1 N L H
Potterton PRT 2 & 100 ST N TL H
Potterton PRT 100 DT N TL H C
Sunvic TLX 2259 E N L 1 2
Sunvic TLX 2356 E 3 1 2
Sopac TA 350 E 1 3 2
Sopac TA 351 E 4 1 3 2
Switchmaster SRT 2 5 1 3 2
Tower SS E 4 1 2

Customer Service Tel: +44 (0) 845 130 5522
Technical Helpline Tel: +44 (0) 845 130 7722


Download Manual
Drayton RTS1 Thermostat Installation instructions

other Manual
Drayton RTS1 Thermostat Technical Specification Guide


Drayton RTS1 Thermostat Installation instructions





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