Replacement Pump Head H3 25/4

The H3 Series universal electric motor with remote electronic control of rotor speed (pump head) is designed to repair and replace motors in modern combination gas boilers with counterclockwise rotor rotation. The rotor speed of the H3 electric motors is remotely controlled using universal PWM technology, a low-voltage signal from the boiler's electronic board via a special control cable.

The PWM function is built into the motor processor. Thanks to this built-in feature, H3 series motors can be remotely controlled by any controllers/thermostats like Siemens, Honeywell, and many more, making them suitable for use in any "smart home" system, underfloor heating systems, solar systems, or systems with heat pumps.

These pumps feature 11 automatic work programmes, including 3 constant fixed speeds (“Old School”).

- Automatic Night Power Reduction Function: This reduces the energy consumption of the pump to 5 watts, with no loss in heating system quality, significantly impacting energy savings.

- Electrical and Thermal Protection: Safety systems that prevent pump breakdown due to external reasons not related to the operation of pump systems.

Every BritTherm Pump includes:

• Set of nuts
• 1.3m cable with a UK plug
• Datasheet
• Packaged in sturdy box
  
  

Free of charge Insulation Jackets included in every box for the following ranges:

• P1, P2, P3, P4, P5, P6, P7
• B3, B4
• S3, S4, S5, S6
  
  

Free of charge PWM Set of Cables included in every box for the following ranges and models:

• P4, P5, P6, S6, H3, H4
• P2 25/8-180
• P2 32/8-180
• P2 25/10-130
• P2 32/10-180
• P2 25/12-130
• P2 32/12-180