IMPORTANT
When carrying out commissioning of the boiler, you are highly recommended to perform the following checks:
– Make sure that there are no liquids or inflammable materials in the immediate vicinity of the boiler.
– Make sure that the electrical connections have been made correctly and that the earth wire is connected to a
good earthing system.
– Open the gas tap and check the soundness of the connections, including that of the burner.
– Make sure that the boiler is set for operation for the type of gas supplied.
– Check that the flue pipe for the outlet of the products of the combustion is unobstructed and has been properly
installed.
– Make sure that any shutoff valves are open.
– Make sure that the system is charged with water and is thoroughly vented.
– Check that the circulating pump is not jammed (CAUTION: protect the control panel from any water lost from the
pump.
– Purge the system, bleeding off the air present in the gas pipe by operating the pressure relief valve on the gas
valve inlet.
– Ensure that all the controls and safety devices have been demonstrated to the user.
– Ensure that all the manuals and documentation that are supplied with the boiler are left with the user.
CONTENTS
1
DESCRIPTION OF THE BOILER
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag.
6
2
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag.
10
3
CHARACTERISTICS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag.
22
4
USE COMMISSIONING, AND MAINTENANCE
(including BENCHMARK/Mains Pressure Hot Water Storage Checklist & Service Record)
. . . . . . pag.
27
5
FAULT FINDING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag.
37
6
REPLACEMENT OF PARTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag.
38
7
EXPLODED VIEWS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag.
40
Murelle EV HE 25/55:
Gas Council number 47-283-20
Murelle EV HE 30/55:
Gas Council number 47-283-21
IPX4D
Important Information
IT IS A STATUTORY REQUIREMENT THAT ALL GAS APPLIANCES ARE INSTALLED BY COMPETENT PERSONS,
IN ACCORDANCE WITH THE GAS SAFETY (INSTALLATION AND USE) REGULATIONS (CURRENT EDITION). The
manufacturer’s instructions must not be taken as overriding any statutory requirements, and failure to com-
ply with these regulations may lead to prosecution.
No modifications to the appliance should be made unless they are fully approved by the manufacturer.
GAS LEAKS:
DO NOT OPERATE ANY ELECTRICAL SWITCH, OR USE A NAKED FLAME. TURN OFF THE GAS
SUPPLY AND VENTILATE THE AREA BY OPENING DOORS AND WINDOWS CONTACT THE GAS EMERGENCY
SERVICE ON 0800111999.
Please refer to commissioning instructions for filling in the checklist of this installation guide.
Note: All Gas Safe registered installers carry a ID Card.
You can check your installer is Gas Safe Registered by calling 0800 408 5577
