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The arrangement of a typical BoilerMate A-Class SP Solar installation is shown
schematically below. The basic unit which is covered by these instructions incorporates
the Danfoss SH - E01 solar controller.
The appliance generally follows the principles of the standard BoilerMate A-Class SP
appliance but is fitted with a separate set of coils to allow it to accept the maximum
amount of heat available from the solar panels/controls. This is then used to
supplement the hot water system.
The operation of the appliance/solar system is controlled by a number of sensors. The
location and reference numbers of the various sensors is shown eg 2, S6.
Sensors S1/S2, S3, S4, S5 and S6 are connected to the appliance control PCB which
operates all the heating and hot water functions as the basic BoilerMate appliance.
Sensors T1, T2 and T3 are connected to the Danfoss controller and operate all the
solar functions.
Schematic Diagram of Typical BoilerMate SP solar system
Solar
Collector
Solar
Circuit
Model Reference
Bedrooms
Dwelling type
Bathrooms
En-Suite
Weight
Empty
Full
F & E Tank
(for thermal store)
T1
Solar
Controls
S4
BoilerMate
V
Hot out
A-Class SP Sol
S3
Mains
cold in
model selection data table/weights
bma 200 sp sol
(kg)
(kg)
1.0 design
1.1 introduction
SensorT3 provides a high temperature interlock
to de-activate the solar pump at a temperature
of 90ºC in the store.
Although sensors T1 and T2 are wired in to the
solar controller the cable provided for Sensor
T1 (3 metres long) may require to be extended
by the installer dependant on the location
of the solar panels/appliance. (2 x 0.75mm
double insulated cable) up to a maximum total
length of 50 metres.
It is important that the installer checks the
hardness of the water supply and if this exceeds
200 ppm (mg/l) the factory fitted scale inhibitor
is ordered with the appliance at the time of
order to reduce the rate of accumulation of
scale in line with the requirements of the
Domestic Heating Compliance guide.
Note: The standard manual fill model BMA SP Sol
appliance is shown. A ballvalve and overflow are
available as an optional extra at the time of order
S1/S2
T3
Components fitted
Heating/hot
within the
water controls
appliance
S6
(ACB)
case
Automatic
Bypass
S5
T2
Heating Flow
Heating Return
Boiler
bma 220 sp sol
2-3
2-4
1
2
2
1
-
79
-
260
Page 3
Heating circuit
bma240 sp sol
3-5
2
2
-
-
2
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