Commissioning And Testing; Gas Pressure - Zanussi ULTRA+ COMBI 30 Installation And Servicing

2.23 COMMISSIONING AND TESTING

A. Electrical Installation
1. Checks to ensure electrical safety should be carried out by
a competent person.
2. ALWAYS carry out the preliminary electrical system
checks, i.e. earth continuity, polarity, resistance to earth
and short circuit, using a suitable test meter.
WARNING.
Whilst effecting the required gas tightness test and purging air from the gas installation,
open all windows and doors, extinguish naked lights and DO NOT SMOKE.
GENERAL
Please Note: The combustion for this appliance has
been checked, adjusted and preset at the factory for
operation on the gas type defined on the appliance
data plate. DO NOT adjust the air/gas ratio valve.
Having checked:
- That the boiler has been installed in accordance
with these instructions.
- The integrity of the flue system and the flue seals,
as described in the Flue Installation section.
Proceed to put the boiler into operation as follows:
CHECK THE OPERATIONAL (WORKING) GAS
INLET PRESSURE
Set up the boiler to operate at maximum rate by
opening hot tap to maximum flow.
With the boiler operating in the maximum rate
condition check that the operational (working) gas
pressure at the inlet gas pressure test point complies
with the requirements - refer to "Gas Supply" on page
12.
Ensure that this inlet pressure can be obtained with all
other gas appliances in the property working.
As part of the commissioning process, the combustion of this appliance must be checked
and the Benchmark Checklist completed. A flow chart to assist is provided on page 73.
IT IS A CONDITION OF THE MANUFACTURER'S WARRANTY THAT THE
BENCHMARK COMMISSIONING CHECKLIST IS FULLY COMPLETED
Installation and Servicing
SECTION 2 - INSTALLATION
B. Gas Installation
1. The whole of the gas installation, including the meter,
2. Purge air from the gas installation by the approved methods
ATTENTION !
AND LEFT WITH THE APPLIANCE
should be inspected and tested for tightness and purged in
accordance with the recommendations of BS.6891.
In IE refer to IS.813.
only.
Gas
Supply

Gas Pressure

Test Point
35