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Setting Water Temperatures
Apollo GEM
can use one of two methods to control the water temperature:
Using the electric water element thermostat (standard system), or Using the optional
Apollo GEM
tank temperature sensor.
Each output can be programmed to use either method, or no temperature control.
The method used for temperature control of each output is set in the installer part of the set-up
menu.
Using the optional tank temperature sensor has a number of advantages over using the normal
electric water element thermostat:
Tank temperature display
The home display screen will show a continuous reading of the
current hot water temperature.
Better temperature control
Water temperature is more accurately controlled than with the
electric water thermostat
Programmable temperature
The hot water temperature can be programmed from the
Apollo
GEM
unit.
Multiple temperatures
Different temperatures can be set depending on whether the water
is being heated by on-site generated energy or imported energy.
This enables the cost of timed water heating to be minimised whilst
maximising available free energy from the generation system
The tank temperatures are set using set-up screen 4:
If there is no temperature sensor installed the temperature is controlled by the heater
thermostat and the temperature set in this screen will have no effect.
Apollo GEM
User Manual
Tmr/Boost Temp 50ºC
Optimiser Temp 65ºC
Temp set by heater
T/Stat if no sensor