HAMWORTHY HEATING LTD
18
Wessex ModuMax
mk3
Boilers
500001308/C
7.0 Checks Prior to Lighting
IMPORTANT: BEFORE PROCEEDING ENSURE THAT THE PRE
-
COMMISSIONING CHECKS ON PAGE 14
HAVE BEEN CARRIED OUT AND THE RESULTS SATISFACTORY.
7.1 Boiler Gas System Leak Check
Pull off front cover moulding & ensure that the appliance manual gas service valve is in the
OFF
position. Although
the boiler receives a gas leak check and gas train component integrity check prior to leaving the factory, transport
and installation may have caused disturbance to unions, fittings and gas valve assemblies etc.
A procedure guide is given below. Care must be taken not to allow leak detection fluid (if used) on or near any
electrical parts or connections.
NOTE: When testing 2 or 3 high stacked appliances the test detailed below must be carried out on each
module.
Figure 7.1
-
Gas System Leak Check Diagram
6.4 Flue
Ensure that;
•
Flue system is correctly designed and installed to suit boilers.
•
Flue passages to chimney are clear.
6.5 Electrical
Ensure that;
•
Electrical connections are correct and isolatable.
•
External controls are operational.
WARNING: WHEN THE FRONT COVER IS REMOVED AND THE BOILER IS
OPERATIONAL, CARE MUST BE TAKEN WITH ELECTRICAL COMPONENTS AND
ACCESS TO PRIMARY INSULATION.
