Bedienungsanleitung A.O. Smith Instano ICW 25 (Seite 16 von 64) (Englisch)

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5 - INSTALLATION

must supply and install a device that will shut-off the

appliance before the system material’s maximum operating

temperature and pressure are met.

In gures 5-2 and 5-3 the service and maintenance valves

are not shown. Hydraulic and gas connections should

be tted with isolation valves to accomodate service and

maintenance works.

5.6 - Gas

CAUTION !!! It is prohibited to operate the

appliance with the incorrect gas type. Check the data

label on the appliance for Natural gas or Propane gas

to ensure that the correct appliance in being installed.

CAUTION !!! Check that the gas and supply

pressure are those for which the appliance has been

adjusted.

Two situations are possible:

A - the gas and supply pressure correspond to the

adjustment of the appliance. In this case, it can be

connected;

B - the gas and supply pressure do not correspond to the

adjustment of the appliance. In this case, the appliance

must be converted to the type of gas and supply

pressure corresponding to those of the supply available.

The appliance is provided with the relevant gas conversion

kit.

Before the gas appliance is installed it is essential to

ensure that the internal gas pipe is clean and free of

metal or plastic lings or any other solid pieces or liquids;

A manual shut-off valve must be installed on the gas

supply pipe adjacent to the appliance;

CAUTION !!! Before supplying gas to the

appliance, it is essential that the gas pipes have been

pressure tested in accordance with the most recent

applicable gas standards.

to prevent damage to the appliance gas valve, the

supply pressure should not exceed 50 mbar under any

circumstances;

if the gas pipe-work must be tested in excess of 50

mbar, ensure that the appliance is fully isolated.

Figures 5-2 and 5-3 shows the position and the diameter of

the gas connection on the appliance. Ensure that the gas line

is adequately sized to provide the maximum volume ow rate

at the required minimum pressure.

5.7 - Condensate drain

There is a siphon inside the appliance for the evacuation

of condensate (see gures 3-2 and 3-4 detail “40”) and to

prevent combustion products from escaping, whose end

corresponds to the pipe “9” in gure 5-5. This termination

must be conveyed into an anti-odour siphon (gure

5-5 detail “5”) to prevent bad odours returning into the

environment.

The condensate discharge must comply with the following:

it must be connected to the waste disposal plant by

Figure 5-4 - Appliance wall xing detail

1 - Cap (NOT TO BE USED)

2 - 1” D.H.W. outlet

3 - 3/4” gas inlet

4 - 1” cold water inlet

5 - Flue/Air intake

6 - Support attachments

Figure 5-3 - Dimensions and connections ICW 60

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