Rheem 871026 Betriebsanleitung PDF herunterladen (Seite 47)

INSTALLATION – WATER HEATER

CIRCULATED HOT WATER FLOW AND RETURN SYSTEM

A Rheem continuous flow water heater cannot be installed as part of a circulated hot water flow and return

system in a building.

If a circulated flow and return system is required, it is necessary to bypass the continuous flow water heater

and install a secondary water heater connected to the hot water flow and return line and supplied from the

continuous flow water heater. The secondary water heater must be a storage water heater able to provide a

hot water outlet temperature of at least 60 C. Note: The thermostat must always be set to at least 60 C.

Temperature Limiting Device

A temperature limiting device cannot be installed in circulated hot water flow and return pipe work. The

tempered water from a temperature limiting device cannot be circulated. Where a circulated hot water flow

and return system is required in a building, a temperature limiting device can only be installed on a dead leg,

branching off the circulated hot water flow and return pipe.

If circulated tempered water were to be returned back to the water heater, depending on the location of the

return line connection on the water supply line to the water heater, then either:

water will be supplied to the cold water inlet of the temperature limiting device at a temperature

exceeding the maximum recommended water supply temperature, or

when the hot taps are closed no water will be supplied to the cold water inlet of the temperature limiting

device whilst hot water will continue to be supplied to the hot water inlet of the temperature limiting

device.

These conditions may result in either water at a temperature exceeding the requirements of AS/NZS 3500.4

being delivered to the hot water outlets in the ablution areas, or the device closing completely and not

delivering water at all, or the device failing. Under either condition, the operation and performance of the

device cannot be guaranteed.

LEGEND

Recirculated Hot Water Flow and Return - Continuous flow Gas Water Heater

REDUCING HEAT LOSSES

The hot water line from the water heater and the pipe work between the solar storage tank, if one is installed,

and the gas booster water heater must be insulated in accordance with the requirements of AS/NZS 3500.4.

The insulation must be weatherproof and UV resistant if exposed. The insulation must be fitted up to the

connections on the both the underside of the water heater and the solar storage tank.

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 75 76

Keine Kommentare

Rheem 871026 Betriebsanleitung Seite 47