Drayton RTS4 Thermostat Instruction Manual

Manual Drayton RTS4 Thermostat Instruction Manual

Drayton RTS4 Thermostat Instruction Manual

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Drayton RTS4 Thermostat

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Drayton RTS4 Thermostat

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Drayton RTS4 Thermostat Instructions

Here we offer the Drayton RTS4 Thermostat manual completely free and in English. We have cataloged this manual in the Thermostats section on Manualverse, and it has been rated by 1 users with an average rating of 5. If you have any specific questions about Drayton RTS4 Thermostat, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.


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Drayton RTS4 Thermostat Specifications

Feature Specification
Manufacturer Drayton (by Schneider Electric)
Model RTS4
Part number 24004
Product type Electronic room thermostat, volt-free heating/cooling changeover switch
Electrical supply 230V ac 50Hz, fused 3A
Circuit fuse 3A
Insulation Double insulated (no earth required)
Switch type S.P.D.T. (single pole, double throw), volt-free
Switch rating 2(1)A 230V ac
Output contacts Volt-free (not SELV)
Temperature setting range 10°C to 30°C
Temperature sensor Electronic
Output type Relay
Control accuracy <0.6°C at 4°/hour
Operating ambient temperature 0°C to 40°C
Storage ambient temperature -20°C to 55°C
Operating ambient humidity (non-condensing) 25% to 90%
Storage ambient humidity (non-condensing) 15% to 95%
Terminals N (neutral), L (live), 1 (common), 2 (heating satisfied / call for cooling), 3 (call for heat)
Wiring Fixed wiring only, to current IET wiring regulations (BS7671)
Mounting Surface or flush single conduit box
Wall fixing screws No 6 x 1" woodscrews with wall plugs
Conduit box fixing screws M3.5 x 14
Recommended mounting height About 1.5m (5ft) above the floor
Dimensions 86mm x 86mm x 37mm
Isolation switch requirement Contact separation of at least 3mm in all poles
Ball pressure test 75°C
Pollution degree 2
Energy class I = 1% (according to EU 811/2013, 812/2013, 813/2013, 814/2013)
Relevant directives 2014/35/EU LVD, 2014/30/EU EMC, 2011/65/EU RoHS, 2012/19/EU WEEE
Applied standards EN60730-1, EN60730-2-9
Document reference 06490053001 Iss F
Technical helpline 0333 6000 622

Drayton RTS4 Thermostat Details

The Drayton RTS4 is part of the RTS range. The range uses electronic sensing to control room temperature and covers most home heating jobs. What sets the RTS4 apart is its volt-free changeover switch. One contact closes when the room needs heat, and the other closes when the heating is satisfied or when cooling is needed. Drayton's sales literature says the RTS4 is suitable for combi boilers. That makes it a good choice when a boiler needs a dry switch contact rather than a live 230V output.

The manual stresses one point: the RTS4 is an electronic thermostat with a relay output, not a mechanical one. Unless it is connected to a 230V mains supply, the relay will not work. You will hear no click, and the call for heat contact will stay open. Installers testing the unit on the bench, or checking it before the supply is on, should expect this. It does not mean the thermostat is faulty. A neutral connection to terminal N is essential for the electronics to run.

Because the output contacts are voltage-free, terminal 1 (common) needs its own supply if the switched circuit needs mains voltage. You can do this by fitting a link between terminals L and 1, or by using a separate supply protected by a 3A fuse. Terminal 3 then gives the call for heat, and terminal 2 gives the heating satisfied or call for cooling signal. Drayton points out that the contacts are not SELV, so the wiring must follow fixed-wiring practice.

Where you put the thermostat affects how well it works. It should not be in direct sunlight or draughts. An inside wall is best, where the unit can sense the real room temperature away from radiators or other heat sources. To fit it, loosen the securing screws and remove the wall-plate. If you are using surface wiring, snap out the cable entry strip with pliers. Then fix the wall-plate with the terminals at the top.

Under the control knob is a mechanism for range limiting and set point locking. This suits landlords, offices and public buildings where users should not be able to change the settings freely. First set the temperature you want, then carefully pull off the knob. Lift and rotate the two limiting arms into the notches you need. Refit the knob with the chosen temperature lined up against the setting mark.

The RTS range is designed to replace earlier ACL and Drayton room thermostats, up to a maximum load of 2(1)A 230V ac. The manual includes cross-reference tables for wiring. They map RTS4 terminals to older models such as the ACL TS142 and TA350 and the Drayton RT and RTE. They also cover thermostats from Danfoss Randall, Honeywell, Potterton, Sunvic, Horstman, Landis & Gyr, Sopac, Switchmaster and Tower. This makes it much easier to swap the RTS4 in for an older unit.

The earthing continuity (loop) terminal is there only for convenience, because the unit is double insulated. When the thermostat reaches the end of its life, do not put it in household waste. Take it to an electronic waste recycling point, and check with your local authority if you are not sure. Drayton offers technical help by phone, on its website and by email at customer.care@draytoncontrols.co.uk. The manufacturer may change the design and specifications without notice.

Frequently Asked Questions (FAQs)

Can't find the answer you need? Here are some frequently asked questions about the Drayton RTS4 Thermostat, and we answer them below.


What is the difference between the Drayton RTS4 and the RTS1?
The RTS1 is a standard heating thermostat with an S.P.S.T. live output. The RTS4 has an S.P.D.T. volt-free changeover switch, so it can switch heating or cooling and suits combi boilers that need a dry contact.

Why doesn't the RTS4 click when I test it?
The RTS4 is electronic with a relay output. Unless it is connected to a 230V mains supply, including a neutral on terminal N, the relay will not work, no click will be heard and the call for heat contact will stay open.

What temperature range can the RTS4 be set to?
The RTS4 can be set anywhere from 10°C to 30°C.

What is the switch rating of the RTS4?
The switch is rated 2(1)A at 230V ac. This is also the maximum load when the RTS4 replaces an older thermostat.

How do I get mains voltage onto the switch contacts?
Fit a link between terminals L and 1, or feed terminal 1 from a separate supply protected by a 3A fuse. The output contacts themselves are voltage-free.

Which terminals are used for call for heat and call for cooling?
Terminal 1 is the volt-free common, terminal 3 is call for heat, and terminal 2 is heating satisfied or call for cooling. Terminals N and L take the 230V supply.

Does the RTS4 need an earth connection?
No. The RTS4 is double insulated, so no earth is needed. The earthing continuity (loop) terminal is there only for convenience.

Where should the RTS4 be installed?
Fit it on an inside wall about 1.5m (5ft) above the floor, away from direct sunlight, draughts, radiators and other heat sources.

Can I lock the temperature setting?
Yes. Pull off the control knob to reach the mechanism underneath. Lift and rotate the two limiting arms into the notches you need to limit the range or lock one setting, then refit the knob.

What fuse and isolation are required?
The circuit fuse must be 3A. The fixed wiring must also include a switch with at least 3mm contact separation in all poles, so the mains supply can be fully disconnected.

Can the RTS4 be mounted on a conduit box?
Yes. It can go straight onto a flat wall with wall plugs and No 6 x 1" woodscrews, or onto a flush single conduit box with M3.5 x 14 screws.

Can the RTS4 replace my old thermostat?
In most cases, yes, as long as the load is no more than 2(1)A 230V ac. The manual includes wiring conversion tables for older ACL, Drayton, Danfoss Randall, Honeywell, Potterton, Sunvic and other models.

What are the dimensions and part number of the RTS4?
The RTS4 measures 86mm x 86mm x 37mm, and its part number is 24004.

What are the operating conditions for the RTS4?
It operates at 0°C to 40°C and 25% to 90% non-condensing humidity. It can be stored at -20°C to 55°C and 15% to 95% humidity.

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