Ariston GL 4 S Gebruiksaanwijzing - Pagina 6

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Floor

Heater can sit on floor.

Mounting

Pipe

Connect the cold water inlet pipe to the inlet tapping (marked with a blue ring) and the hot

connections

water outlet pipe to the outlet tapping (marked with a red ring).

The model GL 6+ S can be piped horizontally from the side or vertically from the top. If you

wish to install the unit horizontally, with the piping connections on the right side, you will have

to be certain the tap between the two water tappings is plugged, the supplied Temperature

and Pressure Relief Valve will need to be installed on top. See location of T&P relief valve in

Fig. 2/2.

If you wish to install the unit vertically, with the piping connections on top, you will have to be

certain the tap on the side is plugged, the supplied Temperature and Pressure Relief Valve

will need to be installed on top. See location of T&P relief valve in Fig. 2/3.

To reduce the risk of excessive pressures and temperatures in this water heater, install

CAUTION

the supplied temperature and pressure protective equipment required by local codes

but not less than a combination temperature and pressure relief valve certified by a

nationally recognized testing laboratory that maintains periodic inspection of

production of listed equipment or materials, as meeting the requirements for Relief

Valves and Automatic Gas Shut-off Devices for Hot Water Supply Systems, ANSI

Z21.22. The supplied temperature and pressure relief valve is marked with a maximum

set pressure (150 psi) that does not exceed the marked maximum working pressure

of the water heater. Install the valve in the opening provided and marked for this

purpose in the water heater, and orient it or provide tubing so that any discharge from

the valve will exit within 6 inches above, or at any distance below, the structural floor,

and cannot contact any live electrical part. The discharge opening must not be blocked

or reduced in size under any circumstances.

National Plumbing codes require a drain pan for any water heater installation. Failure

to install one is the sole responsibility of owner and/or installer. Reference UPC 2000

(Uniform Plumbing Code) Section 510- Protection from Damage or IPC 2000

(International Plumbing Code) Section 504- Safety Devices.

Closed

Periodic discharge of the temperature and pressure relief valve or failure of the

element gasket may be due to thermal expansion in a closed water supply system.

system

The water utility supply meter may contain a check valve, backflow preventer or water

thermal

pressure reducing valve which will create a closed water system. During the heating

expansion

cycle of the water heater, the water expands causing pressure inside the water heater

(for all

to increase. The temperature and pressure relief valve may discharge hot water under

models)

these conditions which results in a loss of energy and a build-up of lime on the relief

valve seat.

To prevent this from happening, there are two recommendations:

1. Install a diaphragm-type expansion tank that is suitable for potable water on the

2. Install a 125 PSI pressure relief valve in the cold water supply line. Make sure the

Instructions for use

Filling the boiler with the network water is the last thing to do, before connecting the

Starting and

tension. It is carried out by opening the tap of the central domestic system and hot-water

testing

system till all the air from the boiler is out. Check visually for any leaks.

For models which are not fitted with a switch, provide electrical power by turning the

control knob in a clockwise direction.

The light will come back on when the water temperature drops below the thermostat

setting.

Temperature

The regulation of the temperature is carried on turning the handle M fig. 3/1 stationed

Setting

on the front of the cap: clock wise to increase temperature, anticlock wise to decrease

it.

cold water supply line. The expansion tank must have a minimum capacity of 1.5

U.S. gallons for every 50 gallons of stored water.

discharge of this valve is directed to an open drain and protected from freezing.

Contact the local water supplier or plumbing inspector for information on how to

control this situation. Do not plug the temperature and pressure relief valve.