The EPH Pipe/Cylinder Thermostat delivers reliable temperature control for hot water cylinders and...The EPH Pipe/Cylinder Thermostat delivers reliable temperature control for hot water cylinders and central heating pumps in domestic and commercial heating installations. Engineered with gas-filled sensor technology, this thermostat provides precise thermal management across a 0-90°C operational range. Available in both standard and tamperproof configurations, the unit accommodates varying installation security requirements. The external setpoint adjustment enables straightforward temperature calibration, while the SPDT contact type ensures effective switching capabilities for both high and low limit applications. Rated at 16(4)A 230Vac with a ±5°C switching differential, the thermostat maintains consistent thermal regulation. The IP20 protection rating ensures suitable performance in standard heating system environments where precise water temperature control is essential. Features & Benefits: Gas-filled sensor technology for accurate thermal detection and control. Temperature range spanning 0-90°C for comprehensive heating applications. Available in standard and tamperproof versions for enhanced installation flexibility. External setpoint adjustment for convenient temperature calibration. Suitable for hot water cylinders, central heating pumps, and high/low limit thermal control installations. Switch Rating: 16(4)A 230Vac. Contact Type: SPDT. Switching Differential: ±5°C. IP Rating: IP20.
The EPH Pipe/Cylinder Thermostat (White, MPN: WRP) is designed for reliable temperature control in domestic and commercial heating systems, specifically for hot water cylinders and central heating pumps. Its key benefit is precise thermal management within a 0-90°C range using advanced gas-filled sensor technology. A potential caveat is its IP20 rating, making it suitable for standard environments but not demanding conditions requiring higher ingress protection.
All features
Colour
White
Model Part Number
WRP
Brand
EPH
Extended Product Information
FAQs
What is the operational temperature range of this thermostat?
The EPH Pipe/Cylinder Thermostat operates within a temperature range of 0-90°C.
Can this thermostat be used for both heating and cooling applications?
This thermostat is designed specifically for heating applications, such as hot water cylinders and central heating pumps.
What does SPDT contact type mean?
SPDT stands for Single Pole Double Throw. It means the thermostat has a common terminal, a normally open terminal, and a normally closed terminal, allowing it to control circuits for both high and low limit functions.
Is this thermostat suitable for outdoor use?
With an IP20 rating, this thermostat is designed for standard indoor heating system environments and is not protected against water ingress, making it unsuitable for direct outdoor exposure.
How do I adjust the temperature setpoint?
The temperature setpoint can be adjusted using the external dial located on the thermostat unit.
What is the switching differential?
The switching differential is ±5°C, meaning the thermostat will switch on when the temperature reaches the setpoint minus 5°C and switch off when it reaches the setpoint plus 5°C (or vice-versa depending on the application).
Troubleshooting
Thermostat not switching on/off
Verify power supply to the thermostat. Check wiring connections and ensure they are secure. Confirm the temperature is within the operational range and that the setpoint is correctly adjusted.
Inaccurate temperature readings
Ensure the thermostat's sensor has good contact with the pipe or cylinder surface. Check for any insulation or obstructions between the sensor and the monitored surface. Recalibrate the setpoint if necessary.
Frequent cycling (switching on/off too often)
Adjust the setpoint slightly to widen the gap between the on and off temperatures, or consider if the ±5°C switching differential is appropriate for the application. Ensure the system load is not causing rapid temperature fluctuations.
Tamperproof version is difficult to adjust
Tamperproof versions are designed to prevent unauthorized adjustments. Use the appropriate tool or method specified for your model to make adjustments.
Pros and Cons
Pros
Accurate temperature regulation via gas-filled sensor.
Wide operational temperature range (0-90°C).
Easy temperature calibration with external adjustment.
Flexible installation with standard and tamperproof options.
Suitable for various heating applications, including pumps and cylinders.
Cons
IP20 rating limits use in dusty or wet environments.
Switching differential of ±5°C may not be suitable for highly sensitive applications.
Requires professional installation for optimal and safe operation.
Setup, Compatibility & Care
Setup:
Mount the thermostat securely to the pipe or cylinder where temperature monitoring is required.
Ensure the sensor is in direct contact with the surface being monitored.
Connect the wiring according to the system's requirements, noting the SPDT contact type for high/low limit control.
Set the desired temperature using the external adjustment dial.
Compatibility:
Suitable for domestic and commercial heating installations.
Compatible with hot water cylinders and central heating pumps.
Designed for 230Vac systems.
Care:
Keep the thermostat clean and free from dust and debris.
Periodically check the sensor for secure contact with the pipe/cylinder.
The IP20 rating means it should be protected from moisture and direct water spray.
Avoid aggressive cleaning agents; use a dry or slightly damp cloth for cleaning.