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Fuse Rating:T 2A L 250V
PE
L
N
A1
N
A2
N
A3
N
mains 230/240 V area
PE
Earthed connection
L
Mains supply live conductor
N
Mains supply neutral conductor
A1
Switch output to solar pump
N
Neutral wire to solar pump
A2
Switch output 2 to second
system pump if used (east/west)
N
Neutral wire switch output 2
A3
Switch output 3 to auxiliary
heating control
N
Neutral wire switch output 3
All descriptions and illustrations provided in this leaflet have been carefully prepared but
we reserve the right to make changes and improvements in our products which may affect
the accuracy of the information contained in this leaflet. All goods are sold subject to our
standard Conditions of Sale which are available on request.
MULTIFIT
A Registered Trademark of Baxi Heating UK Ltd (3879156)
A Division of Baxi Group
Brooks House, Coventry Road,Warwick. CV34 4LL
After Sales Service and Technical Enquiries 08700 603261
Our contact centre is open Monday to Friday 8am to 6pm,
Weekends and Bank Holidays 8.30am to 2pm.
We are closed Christmas Day and New Years Day.
Website www.baxi.co.uk
e&oe
8
WMM
T1
T2
T3
T4
T5
T6
low voltage area (SELV)
WMM Flow meter
T1
Temp.- sensor collector 1
(West facing)
T2
Temp.- storage tank 1
T3
Temp.- sensor collector
(East facing)
T4
Temp.- sensor collector
return
T5
Temp.- sensor thermostat
or for 2nd temperature
differential controller
T6
Temp.- frost protection or
for 2nd temperature
differential controller
4.0 Pump & Sensor Connections
4.1
Pump & Sensor Connections To Solar
Controller
Collector 1 (West facing) temperature sensor connected to
terminals marked T1 (polarity free)
Collector 2 (East facing) temperature sensor connected to
terminals marked T3 (polarity free)
Cylinder temperature sensor connected to terminals marked
T2 (polarity free)
Master Pump circuit to Collector 1 connected to terminals
marked A1 and N (240V terminals – observe polarity)
East/West Pump circuit to Collector 2 connected to terminals
marked A2 and N (240V terminals – observe polarity)
The collector temperature sensors must be installed in the
relevant sensor pockets mounted on the collector.
Refer to the relevant Collector Mounting Installation Guide for
details of the position of the sensor pockets. Only the BLACK
sleeved sensors should be used in the collector.
4.2
Setting The Solar Controller System Parameter
To East West Configuration
• Turn the power off to the solar controller (Master Pump
Station).
• Turn the power back on to the solar controller (settings can
only be adjusted in the first minute of powering up.
• Press the right button until the spanner symbol is displayed
(
).
• Press the down button until sub menu 16 is displayed.
• Now press the right button to access the icon will now be
flashing.
• Press the up/down button until 4 is shown in the display.
• Press the right button so that the OK symbol appears.
• Press the right button again to set and confirm new
parameter 4 (East/West Array).
Comp No 5132322 - Iss 2 - 6/09
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