Table of Contents
Advertisement
15.0 COMMISSIONING AND TESTING
15.1
ELECTRICAL INSTALLATION
Notes on the requirements for electrical installation are provided in Section 13.0: ELECTRICAL SUPPLY. A schematic drawing of the control
circuit is shown in Figure 13.8
15.2
GAS INSTALLATION
For design see Section 9.0: GAS SUPPLY. See Section 3.0: PRINCIPAL PARTS for details on the position of the gas connection.
15.3
WATER CONNECTIONS
For design see Section 12.0: WATER CONNECTIONS
The system should be thoroughly flushed out with cold water without any circulating pumps in position. Ensure
all the valves are open.
If a building return pump is to be fitted, it should be fitted before the system is filled and air locks cleared. Check the system for leaks and repair
as necessary. If the system is configured in an unvented arrangement, check the expansion vessel cushion pressure.
15.4
COMMISSIONING THE EQUIPMENT
GENERAL CHECKS PRIOR TO LIGHTING
A person deemed competent must be responsible for the commissioning of this equipment. Before attempting to
commission any equipment, ensure that personnel involved are aware of what action is about to be taken and begin
by making the following checks:
1.
Flue way passages are clear.
2.
Adequate ventilation exists in the plant room (if necessary)
3.
The system is fully charged with water, ready to receive heat. All necessary valves are open and the building return pump (if fitted) is
circulating water.
4.
The gas supply pipework is clear of any loose matter, tested for soundness and purged.
5.
The condensate drain is installed correctly and the condensate trap is filled with water.
If the condensate trap is not filled before use, products of combustion may escape and can lead to severe personal
injury or death
EQUIPMENT CHECKS PRIOR TO LIGHTING
This unit has been designed for a nominal gas inlet pressure of 20 mbar when used on natural gas. Information relating to propane
firing can be found in Section 16.0: LPG FUEL
1.
Gas supply is connected but turned to the "off" position. Any unions or fittings are correctly tightened, test points are closed and the
flame sense electrode lead is connected correctly. Ensure the ceramic sheath around the flame sense electrode is not cracked or
broken.
2.
Ensure electricity supply is connected.
3.
Check that the internal circulating pump is fully bled.
51
Hide quick links:
Advertisement
Table of Contents
