Rheem 511161 Owner's Manual And Installation Instructions page 50

COMMISSIONING
IN-SERIES BOOSTER
Refer to the Owner's Guide and Installation Instructions supplied with the in-series water heater for the
commissioning procedure of the in-series water heater.
If a continuous flow gas water heater has been installed as an in-series gas booster to the solar water heater,
then to complete the installation, it is necessary to check the gas supply pressure at the inlet to the in-series
gas booster, and also the minimum test point pressure and the maximum test point pressure of the in-series
gas booster. Refer to "Gas Inlet Pressure" and to "Burner Gas Pressure" in the Owner's Guide and Installation
Instructions supplied with the in-series gas booster.
PRESET OUTLET TEMPERATURE
Note: AS 3498 requires that a water heater provides the means to inhibit the growth of Legionella bacteria in
potable water. If this water heater is installed with an in-series continuous flow gas booster, then this
requirement of AS 3498 can be satisfied provided the booster is energised, its preset outlet temperature setting
is 70°C or higher and a remote temperature controller or an EZiSET kit is not used.
If this water heater is installed with an in-series storage booster, then this requirement of AS 3498 can be
satisfied provided the storage booster is energised and its thermostat setting is 60°C or higher.
It will be necessary to check and if required to adjust the preset outlet temperature setting of the continuous
flow water heater or the thermostat setting of a storage water heater when it is installed as an in-series booster
to a solar water heater or if it is an existing water heater and a solar water heater is then installed.
Refer to the Owner's Guide and Installation Instructions supplied with the in-series continuous flow gas booster
for the procedure to check and adjust the preset outlet temperature if required.
Refer to the Owner's Guide and Installation Instructions supplied with the in-series storage booster for the
procedure to check and adjust the thermostat setting if required.
Note: Consideration must be given to the delivery temperature to any ablution and public areas such as a
bathroom, ensuite or public amenities. Refer to
Temperature Zones Using A Temperature Limiting Device"
BLEEDING THE SOLAR COLLECTOR(S)
Upon completion of the installation, if the service 3-
way valve was not opened during the tank filling
procedure, then it is necessary to purge the air from
the collector circuit.
To purge air from the collector circuit:

Ensure the water heater is full of water and all of
the hot taps are turned off.

Using a pair of pliers or other appropriate tool,
open the service 3-way valve fitted at the solar hot
water inlet (from collector) of the solar storage
tank (see diagram).
Warning: Stand well aside of the service valve
drain pipe discharge point and exercise care to
avoid any splashing of water, as water or in some
circumstances steam discharged from the solar
collector(s) may be of a very high temperature.

The mains pressure will force water to flow from the tank and through the pipe work, forcing air from the
collector circuit through the service valve. This is evidenced by spurting of water from the drain line
connected to the service valve.
Note: Allow water to flow from the drain line for a few minutes before closing the service valve. Water
already in the solar hot pipe will drain out prior to air in the top of the collector circuit being purged by the
mains pressure water rising in the solar cold pipe.

Close the service valve when water runs freely under mains pressure from the drain line.
"Hot Water Delivery"
on page 26 and to the schematics of
on page 27.
SERVICE 3 WAY VALVE
Solar Pumped Open Circuit
50
Service 3-Way Valve
"Two