MV Heating Hydro 55 Instruction Manual

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1

MV Heating UK Ltd

MV Hydro 55

Diesel Powered
Water Heater
Instruction Manual
Ed. 1.00

MV Heating UK Ltd

Unit 6

Second Avenue Business Park

Millbrook

Southampton

SO15 0LP

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MV Heating UK Ltd

Preface

Thank you for purchasing the MV Hydro 55 Water
heater. This instruction book describes the structures,
working principles, installation and operation of the MV
Hydro 55. For correct use of the heater please, please
read this instruction book carefully before installation
and use. The instruction book should be saved in a
convenient place for later reference.

Attention

• This instruction book is subject to revision

without notice, but the instruction book is in
conformity to the purchased product.

• Our effort is to explain all questions the user

may have through this instruction manual. If
you have any doubts or find anything incorrect
in this manual, please contact the company
directly.

• Check the heater for any damage when

unpacking and contact the dealer immediately if
any damage is found.

• If any troubles arise during application, please

contact MV Heating or other customer service
stations authorized by this company. We shall
do our best to provide service to you.

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MV Heating UK Ltd

Contents

No.

Content

Page
No.

1

Introduction

4 2

Technical Data

6 3A

Installation

8

3B

Installation of fuel line

15

4

Operating Instructions

18

5A

Maintenance

19

5B

Fault Finding

21

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MV Heating UK Ltd

1. Introduction

The MV Hydro 55 is a 5kW modulating diesel fired
water heater, which is suitable for providing hot water
for heating purposes via radiators or matrix heaters and
also domestic hot water via a calorifier. The MV Hydro
55 is fully automatic in operation featuring low energy
glow pin ignition and microprocessor control for full
temperature regulation.

Very low servicing costs due to modular construction.
Simple wiring means a variety of controls are available
to operate this heater

It can be applied to various heating purposes, whether
its hot water heating for easier living or engine pre­heating and demisting.

For both vehicle and marine markets the Hydro 55 is a
great way to efficiently meet your heating needs.

This kit includes everything necessary for installation
excluding plumbing to the radiators and calorifier.

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MV Heating UK Ltd

Included in your Hydro 55 Kit is:

MV Hydro 55

Part

Quantity

Heater on bracket with water pump

1

Fuel standpipe

1

Fuel pump on antivibration mount

1

Fuel pipe

1

Rubber coolant hose

2m

Water pipe connections

4

Clips & Fixings

Various

Wiring harness

1

On/off switch with diagnostic light

1

Stainless steel exhaust terminal

1

Stainless steel exhaust clamps

1

Silicone coated exhaust lagging

1

Exhaust support strapping

1

Exhaust with silencer

2.3m

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MV Heating UK Ltd

2. Technical Data

Figure I

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MV Heating UK Ltd

Figure I:

1. Heat exchanger assembly 2. 4-hole combustion

chamber gasket

3. Backing plate 4. 3-hole combustion
chamber gasket

5. Combustion chamber 6. Heat exchanger gasket

7. Housing 8. Combustion air motor

9. Air motor gasket 10. Air fan gasket

11. Combustion air fan 12. Combustion air fan cover

13. Thermistor 14. Glow pin and flame

sensor assembly

15. Overheat sensor 16. Water pump

17. ECU board 18. ECU cover gasket

19. ECU cover with loom