SUNSTONE P-Stat + Installation Instructions Download Page 1

P-Stat + Programmable Thermostat

EN -

 INSTALLATION INSTRUCTIONS

Installation

Safety Information

Technical Specifications

Step 1 - Identify Suitable Location

Step 2 - Installation and Wiring Connection

Before making any permanent fixtures it is recommended identifying your preferred location for the thermostat. It 

should be located in an area with good ventilation. It should not be beside a window/door, in direct sunlight or above 

another heat generating device (e.g. radiator or TV).

BATHROOM INSTALLATIONS: 

When installing the thermostat within a bathroom it MUST be mounted outside of Zone 2 

in accordance with Wiring Regulations. If it is not possible to identify a suitable location outside of Zone 2 within the 

bathroom, then it is recommended that the thermostat is installed in the adjacent room and set to control the heating 

by floor temperature only. When installed in this way, it is not possible to directly control the heating based on the 

room air temperature, only the floor surface temperature.

IMPORTANT INFORMATION: 

Installation should only be carried out by a qualified and competent electrician. The 

P-Stat + requires a permanent power supply from a 30mA RCD protected circuit in accordance with the current edition 

of the Wiring Regulations. The thermostat and its power supply should be isolated from the mains supply throughout the 

installation process. Ensure that wires are fully inserted into the terminals, with no bare wire visible and secured. Any 

free strands should be trimmed, as they could otherwise cause a short-circuit.

• Operating Voltage - 

100 - 240 V AC 50/60 Hz

• Model - 

P-Stat +

• IP Rating - 

IP21

• Max. Load - 

16 A (3840 W) 

• Installation Depth - 

Min 35mm Pattress

• Dimensions - 

(H/W/D): 81 x 81 x 25 mm (from wall surface)

• Sensors - 

Air & Floor

• Compatibility - 

eUFH

• Sensor Type - 

2.5m NTC 100K (can be extended to 50 m)

• Er-P Class -

 

I

• Insulation Class - 

II

• Standards - 

EN60730-1 & EN60730-2-9

Gently press a flat head screwdriver 

into the plastic release clips 

highlighted above and pull face 

outwards, unclipping from the base. 

Place the frame and thermostat 

face somewhere safe.

Wire as shown above and install to 

a 35mm deep (min.) pattress

1 & 2:

 NTC100K Floor Sensor

(No Polarity)

3:

 PE - Supply and Load Earth

4: 

L1 - Load Live

6: 

N - Supply Neutral

5: 

N1 - Neutral Live

7: 

L - Supply Live

1

NTC 100K

SENSOR

PE

L1

N1

2

3

4

5

6

7

N

L

Floor Sensor

(No Polarity)

Heaters 

(Max. 16 Amps)

230V AC 

Supply

1

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