Bedienungsanleitung Morco D-61B (Seite 16 von 22) (Englisch)

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• Ensure that all the washers are properly fitted.

• Ensure all gas and water joints are sufficiently tight as not to leak.

•WATER TIGHTNESS OF THE WATER CIRCUIT

Allow water to flow into the heater by slowly turning on the water supply to the

appliance. This will prevent possible damage due to hydraulic shocks on high

pressure water supplies. Purge air from the water pipes by slowly turning on all the

hot and cold water taps. Turn off the taps and check for leaks around the heater.

• GAS TIGHTNESS OF THE GAS CIRCUIT

Connect a manometer to the inlet pressure nipple (Number 8 on Operating

Diagram) and carry out a gas soundness test in accordance with the current

procedure. Gas joints down stream of the magnetic valve which cannot be tested

during soundness testing with the manometer should be checked with leak

detection fluid with the appliance running.

• STARTING UP THE APPLIANCE AND FINAL CHECKS

Start the appliance by following the directions given in section 1, “Instructions for

Users”, checking that the appliance is working correctly. Pay special attention to the

colour of the flames ensuring there is no yellowness which would indicate burner

venturis blocked by insect matter.

Check the gas operating pressures with the heater under full power at the inlet

pressure nipple located on the left hand side of the gas body valve stem (position

8 ) the pressure drop should not exceed 2.5 mb below that specified in this manual.

Check the burner pressure with the heater at full load at the test nipple located on

the left hand side of the main gas valve body below the main burner. These

pressures must at least be equal those specified in this manual in order to achieve

the desired performance specified in this manual.

Check the flue for spillage; close all doors and windows in the room containing the

appliance. If any fans are fitted within the room containing the appliance, test with

the fan or fans on full.

Light any other open flued appliances contained within the room that may affect the

flue operation.

Turn the appliance on full and run for 5 minutes to allow the flue to warm up.

Hold a smoke match in the side opening of the draught diverter using an extended

holder, making sure the end of the match is located centrally in the draught diverter.

The smoke should be pulled up the flue and not back into the room.

If spillage is detected, run the appliance for a further 10 minutes and then repeat

the test. If spillage is still detected, then check the flue for blockages, the correct

flue and terminal is fitted and the correct size of ventilation is fitted.

These gas water heaters are set in the factory for use with the gas they are intended

to burn. The gas for which each appliance is set is indicated on the packaging and

on the cover of the heater itself.

Note: The jets to be used with the type of gas for which the appliance is intended will be

supplied from the factory. Their diameters correspond to the following sizes: Ø in mm

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Morco D-61B Seite 16

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