Commissioning And Testing; Electrical Installation; Gas Installation; Water Connections - Lochinvar ECOKNIGHT EKW116CE Installation, Commissioning, Maintenance And User Instructions

18.0 COMMISSIONING AND TESTING

ELECTRICAL INSTALLATION

Notes on the requirements for electrical installation are provided in Section15.0: ELECTRICAL SUPPLY. A schematic drawing of
the control circuit is shown in Figure 15.9.

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.

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.
Check the system for leaks and repair as necessary. If the system is configured in a sealed arrangement, check the expansion
vessel cushion pressure and pressurisation unit settings.

COMMISSIONING THE EQUIPMENT

18.4.1
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 all allied pumps are
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
18.4.2
EQUIPMENT CHECKS PRIOR TO LIGHTING
This unit has been designed for a nominal gas inlet pressure of 20.0 mbar when used on natural gas.
Information relating to propane firing can be found in Section 18.0: 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.
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