BRITTHERM DP15 Domestic Pro Heating Pumps Domestic Instruction Manual

BRITTHERM DP15 Domestic Pro Heating Pumps Domestic

Please read these instructions carefully before installation

General Information

These instructions guide you through the installation and operation of this Brit Therm TM central heating circulator. The Domestic Pro is a high efficiency circulator which is perfectly suited to operate in:

• Single zone heating systems
• Multi zone heating systems
• Underfloor heating systems

The pump incorporates a permanent magnet motor with differential pressure control which enables its performance to be aligned with actual system demand.
It has a connection size of 1 ½” , a maximum head of 6 metres and a port to port distance of 130 mm making it perfect for domestic applications.

Pump Liquid & Operating Conditions

Brit Therm™ pumps require clean, thin, non-aggressive liquids to operate correctly and prevent damage to their internal components. The liquids used must not contain any solid particles, fibres or mineral oil.
Liquids running through circulation pumps used on heating systems must comply with the accepted standards of quality especially in domestic applications. Liquids that do not comply will void the warranty offered with the circulation pump.

Pump Diagram

1. Outlet
2. Pump Body
3. Motor Housing
4. Data Label
5. Bleed Screw
6. Control Pad
7. Control Box
8. Inlet
9. Electric Connection

Installation

Attention : Ensure the pump is installed with the motor shaft in the horizontal position.

Attention :The pump liquid may be scalding hot and under pressure. Before removing head screws the system either requires draining, or the pump needs to be isolated.

Gaskets

Attention: Fit the two gaskets when the pump is mounted correctly between the flow and return pipes.

Venting

Attention: The pump liquid may be scalding hot and under pressure so proceed with caution when bleeding the pump.

Control Panel

1. Screen showing actual working power
2. Light field indicating AUTO mode
3. Lowest manual speed option
4. Middle manual speed option
5. Highest manual speed option
6. Light field indicating NIGHT mode
7. Button for selecting NIGHT mode
8. Button for selecting each pump setting
9. CPI: Min. constant pressure curve
10. CP2 : Max. constant pressure curve
11. PP I : Min. proportion pressure curve
12. PP2: Max. proportion pressure curve

Pressure Curve

Operating Modes

I (Minimum) – the pump runs at a constant fixed speed and therefore on a constant curve.
II (Medium) – the pump runs at a constant fixed speed and therefore on a constant curve.
Ill (Maximum) – the pump runs at a constant fixed speed and therefore on a constant curve.
Quick venting of the pump can be achieved using speed Ill for a short period.
AUTO – the power rises and falls in line with the system flow rate. Ex – factory setting.

Night Mode – the pump reduces power automatically.
After 2 hours it drops to its minimum level (5-10 Watts). After 7 hours the pump reverts to its original setting

PPI (Proportional Pressure I) – the duty point moves up/down on the lowest proportional pressure curve. Head pressure is then reduced and increased at falling and rising heating demand respectively.
PP2 (Proportional Pressure 2) – the duty point moves up/down on the highest proportional pressure curve. Head pressure is then reduced and increased at falling and rising heating demand respectively.
CPI (Constant Pressure I) – the duty point of the pump moves out or in the constant pressure curve depending on heating demand.
Head pressure remains constant irrespective of heating demand. CP2 (Constant Pressure 2) – the duty point of the pump moves out or in the constant pressure curve depending on heating demand. Head pressure remains constant irrespective of heating demand.

Fault Finding

Before starting any work on the pump please ensure the electricity supply is turned off and cannot be accidentally switched back on at any time.

B) The current/voltage operated circuit breaker has tripped out C) The pump is defective| Replace fuse Cut in the circuit break Replace pump
| Only shows power| A) Failure of electricity supply, might be too low| Check the supply falls within the specified range
Noise in the system| Light on for power and pump setting| A) Air in the system
B) The flow is too high| Vent the system Reduce the suction head
Noise in the pump| Light on for power and pump settings| A) Air in pump
B) Inlet pressure is too low| Let the pump run, it vents itself over time Increase the inlet pressure. Check the air volume in the expansion tank if installed
Insufficient| Light on for power and pump settings| A) Pump performance is too low| Increase the suction head

Guarantee Registration

This pump is covered against manufacturing malfunction by a 6 year  guarantee. The guarantee is only valid if the pump has been installed correctly, the system is maintained adequately, and the guarantee is ~ registered within 30 days of purchase.

The pump is covered for a free of charge replacement should malfunction occur within the first 3 years from the date of sale. From 3 years and up to 6 years the pump 1s covered for a replacement at 50% of the original sale price. To register go to www.BritTherm.co.uk and click – Register a Guarantee

You will need:

• Date of purchase
• Address where pump is fitted
• Name of supplier
•  Supplier invoice number

Please retain your purchase invoice as it may be required in the event of a guarantee claim.
To make a claim please contact Brit Therm by email in the first  instance: info@BritTherm.co.uk

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