In-Series Gas Boosting - Rheem 862 27 Series Service Instructions Manual

IN-SERIES GAS BOOSTING

Remote temperature controllers must not be fitted if this water heater is
installed as part of a solar water heater system because water at a
temperature much higher than the controller setting can be delivered.
50ºC models are not suitable for use as in-series solar gas boosters.
Only solar compatible models with a temperature setting of 70ºC or higher can be installed
as an in-series booster water heater to a solar preheat water heater. In this application the
outlet temperature setting of the heater must be set at a minimum of 70C to comply with
the requirements of AS3498. Refer to page 14 for details on checking and adjusting the
outlet temperature.
When the inlet water temperature is 58°C or higher the fan and burner will not operate
despite water flowing through the heat exchanger. When the inlet water temperature is less
than or equal to 57°C the burner will fire and boost the outlet temperature to 70°C provided
the flow rate is greater than 2 litres per minute.
Note: If an existing 871 series Integrity water heater with a bypass valve is replaced with a
new solar compatible CF heater, the solar bypass valve must be removed and the plumbing
connections remade directly to the inlet and outlet water connections of the replacement
water heater.
In-series Gas Boosting - Solar Loline Installation
TM049 27L Continuous Flow Service Instructions
REV AL – Issued April 2019
This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed "uncontrolled".
Typical Installation - Solar In-Line Gas Booster
Solar Pumped Open Circuit Systems
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