Installation Instructions GAS Connection

INSTALLATION INSTRUCTIONS

5.GAS CONNECTION

The installation of the gas connection, as well as the laying of the customer's gas line, is only to be carried out by an author- ised specialist subject to the relevant national and local regula- tions.

NOTE

•The gas appliance may only be installed in an adequately ventilated location.

•Appliances are set up for natural gas. The type of gas, gas pressure and gas category are entered on the specification plate. Prior to connection, check that the appliance is set up for the type of gas available on site. To do this, compare the details on the specification plate with the existing gas data.

•If this is not the case, the appliance must be converted or adapted by the service personnel responsible to suit local conditions. The following points should be noted:

-Has the appliance been tested for the new gas data?

-Conversion in accordance with the Service Manual.

-A new specification plate or a durable marking with the new gas data must be affixed to the appliance.

5.1CONNECTION

Gas-only appliances as well as combination electric and gas appliances require a gas connection.

The gas connection is located under the appliance on the right hand side. For all types the gas connection is NPT 3/4“.

The installation of a dirt trap in the gas supply line by the owner is recommended.

After connection, all lines carrying gas must be tested for leaks at operating pressure by painting with non-corrosive foam- forming media, (e.g. soapy water or leak spray).

5.2GAS PRESSURE

The current gas pressure should be measured at the Mertik regulator with a liquid U-tube manometer (scale at least 0.1 mbar = 1 mm water column).

DRemove the control panel. The measuring nipple is located in downwards direction at the gas supply pipe before the two gas valves.

DClose off the mains gas leading to the appliance.

DThe measuring nipple is provided at the left side of the reg- ulator. The incoming pressure is measured in front, the out- going pressure behind.

DLoosen the slotted screw (1 turn) in the measuring nipple. Then connect the pressure gauge by attaching a flexible tube to the nipple (out-side diameter 8 mm).

DOpen the main gas leading to the appliance.

DRun all burners on the appliance at full output.

DCheck whether the connection pressure is in permitted tol- erance.

DTurn off the appliance again.

DClose the main gas valve.

DRetighten the slotted screw in the measuring nipple. Gas pressure deviation tolerances are laid down by EN 203. If the existing gas pressure is outside the given tolerances, correct combustion can no longer be ensured. Compulsory measures: pressure adjustment by the gas works or con- version of the range by the service personnel. Please refer to "Conversion to another gas type".

Gas pressure tolerances

Gas pressure variation tolerances are as

follows: mbar

Gas type		Normal		Min.
		pressure		pressure
		inch	mbar	inch	mbar
		water g.		water g.

Natural gas	A	7	17.4	3.5	8.7
USA

Liquid gas	E	11	27.4	8.0	20
Propane
USA

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62.9680.01_UL

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