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solar controls
The BoilerMate A-Class SP Sol appliance is supplied with a Danfoss electronic Solar
Heat Regulator ref SH-EO1 built into the appliance and the necessary temperature
sensors ref NTC 100k.
description of function
The regulator controls the heat transmitted from the solar collector to the thermal
store using the temperature differential between the sensors fitted adjacent to the
solar collector and in the lower part of the thermal store.
AUTO
MAN.
STOP
PUMP
This button is used to switch between pump operation patterns:
AUTO Automatic operation of circulation pump
MAN
Circulations pump runs continuously
STOP The pump does not run
note: the pump must always be left set on auto
temperature display
The display shows either temperature or solar heat output. Select by pressing the
INFO button. If temperature is displayed, the temperature is given at both the solar
collector and the bottom of the thermal store.
AUTO
MAN.
STOP
LEDs
Green LED indicates the pump is running
Red LED indicates fault
INFO
PUMP
INFO
This button is used to
switch between the two
modes: Temperature or
ALARM
solar heat output
- Normal operation
- Used e.g. for service
- Used e.g for service
Temperature in hot-water thermal store
Temperature in solar collector
2.0 installation
2.2 controls
The solar heat circuit circulation pump is
controlled by the differential temperature
between the solar collector and the store
bottom. If the differential temperature is
higher than the preset start-up temperature
differential, the circulation pump will run.
To avoid unnecessary pump operation the
temperature of the solar collector has to be
higher than 15ºC before the pump starts
operating. The controller has been pre-set
to start on a temperature differential of 5ºC
and the pump will run until the temperature
differential is below 2ºC.
The controller will also exercise the pump for 1
minute every 14 days to help stop it sticking if
it has not been used.
Solar heat output
AUTO
MAN.
STOP
Solar heat output
SOLAR HEAT OUTPUT
Gives the performance of the solar heat
installation. The figure is calculated on the basis
of the difference between the temperature in
the solar collector and the temperature in the
tank, as well as the time in which the pump is
running in AUTO.
Max display value is 2999.
DAYS COUNTER
Gives the number of days for which the solar
heat output has been calculated. The max.
calculation covers 30 days.
Automatic reset of SOLAR HEAT OUTPUT and
DAYS COUNTER is effected when the days
counter reaches 30. A manual reset can be made
by pressing the INFO button for 3 seconds.
Page 8
Days counter
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