Table of Contents
Advertisement
HOW YOUR WATER HEATER WORKS
For multiple heat pump (Master/Slave) configuration, the auxiliary booster will
operate instead of the heat pumps if fifty percent (50%) or more heat pumps are
in fault.
For installations using multiple heat pumps in a master/slave configuration;
activation of backup auxiliary boost operation on any heat pump activates the
auxiliary boost on all LAN connected heat pumps.
The auxiliary boost should be set to 60°C.
The auxiliary boost will remain active until the water heater fault is cleared.
Warning:
excessive use of auxiliary boost heater. It is the customers' responsibly
to monitor the system regularly for its correct operation. Rheem
recommends monitoring via BMS (modules supplied separately).
MAINS PRESSURE
The water heater is designed to operate at mains pressure by connecting directly
to the mains water supply. If the mains supply pressure in your area exceeds
that shown on page 21, a pressure limiting valve must be fitted.
THERMAL CUT OUT
The refrigeration circuit is protected by thermal sensors. These will activate a
thermal cut out in the event of excessive heat in the refrigeration system.
If the thermal cut out has activated, the heat pump will not operate for a period
of 20 minutes to 2 hours. The water heater will make two more attempts to start
up. If the thermal cut out is tripped again after the third attempt, the system will
enter lock out and the alarm contacts will close. If connected to a BMS, this will
alert the user that the unit is not operating.
The lockout condition can be manually reset by switching the power to the water
heater off and then on.
CONTROL FUNCTIONALITY
A timer can be set through the heat pump control panel to limit the hours of
operation of the water heater (e.g. to reduce noise at night).
The operation of the heat pump can also be controlled by setting up tariff option
on the control panel to manage operating costs.
Rheem will not be responsible for higher utility bills due to
10
Advertisement
Table of Contents
