Rheem W2W Series, Руководство пользователя и инструкции по установке

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HEAT PUMP AND TANK ASSEMBLY
34
AUXILIARY WATER HEATER
It may be necessary to install an auxiliary water heater under the following
conditions:

If poor flow rate is sensed or the cold side outlet temperature or hot side
outlet temperature is likely to drop below 5
o
C during periods when
heating may be required.

To ensure sufficient hot water is available for higher than expected peak
conditions.

If higher temperature water is required for certain applications, eg
commercial laundry or kitchen.
The configuration of the auxiliary water heating plant can vary depending on the
requirements of the individual installation.
Operation at Activation of Freeze Protection Only - Where the auxiliary water
heater is required to be activated if the heat pump cannot operate due to freeze
protection, the heat pump can activate the auxiliary heater or pump. There are
many configurations depending on system design. Consult the Application Guide
for details on the auxiliary boost function designed for this system.
In Line Boosting Only -
Where the auxiliary water heater is required to ensure
sufficient hot water is available for periods after the main peak or to boost the
temperature of the water produced by the heat pump for other purposes (eg high
temperature for kitchen and laundry use), auxiliary water heater(s) must be
installed in series with the storage tanks. ie, the hot water outlet from the storage
tanks must feed into the inlet of the auxiliary water heater(s).
Note: Where RT storage tanks are used, boosting in the top portion of the
storage tank is equivalent to boosting in series.
Where multiple auxiliary water heaters are required to be manifolded together,
these must be manifolded using the Equa-Flow
®
manifold system and the
manifold in-series with the storage tanks. Refer to page 36.
This arrangement can also be adapted to include recirculation heat loss make
up and / or freeze protection activation heating. Refer to Application Guide for
options.