Rheem 50 Manuel de service télécharger pdf (Page 20)

CONNECTIONS – PLUMBING

All plumbing work must be carried out by a qualified person and in accordance with the Standard

AS/NZS 3500.4 and all local codes and regulatory authority requirements. In New Zealand the installation

must also conform with the New Zealand Building Code.

CONNECTION SIZES

Hot water connection: Rp 1¼.

Cold water connection: Rp 1¼.

Relief valve connection: Rp 3/4.

WATER INLET AND OUTLET

All pipe work must be cleared of foreign matter before

connection and purged before attempting to operate the water

heater. All olive compression fittings must use brass or copper

olives. Use thread sealing tape or approved thread sealant on

all fittings.

An isolation valve and non-return valve must be installed on the

cold water line to the water heater. An acceptable arrangement

is shown in the diagram or on page 26 for multiple installations.

Refer also to “Hot Water Delivery” on page 15.

A disconnection union must always be provided at the cold

water inlet and hot water outlet on the water heater to allow for

disconnection of the water heater.

This water heater has either a plastic dip tube or fitting liner in

the inlet and outlet fittings (see diagram). These must be in

place for the water heater to function properly. Do not remove or

damage them by using heat nearby. They will be pushed into

the correct position as the fitting is screwed in.

PIPE SIZES

The pipe sizing for hot water supply systems should be carried out by persons competent to do so, choosing

the most suitable pipe size for each individual application. Reference to the technical specifications of the

water heater and local regulatory authority requirements must be made.

TEMPERATURE PRESSURE RELIEF VALVE

The temperature pressure relief valve is shipped either under the top flap of the water heater carton or

behind the front cover or in a plastic bag attached to the water heater. The temperature pressure relief valve

must be fitted before the water heater is operated. Before fitting the relief valve, make sure the probe has not

been bent. Seal the thread with Teflon tape - never hemp. Make sure the tape does not hang over the end of

the thread.

Screw the valve into the correct opening (refer to the installation diagram on page 19) leaving the valve drain

pointing downwards. Do not use a wrench on the valve body - use the spanner flats provided. A copper drain

line must be fitted to the temperature pressure relief valve (refer to "Relief Valve Drain" on page 21).

The valve must be insulated with closed cell polymer insulation or similar (minimum thickness 9 mm) and the

insulation installed so as not to impede the operation of the valve. The insulation must be weatherproof and

UV resistant if exposed.

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Rheem 50 Manuel de service Page 20

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