11
11
COMMISSIONING
FILLING THE UNIT WITH WATER
• Check expansion vessel pre-charge pressure.
The vessel is supplied pre-charged to 3.5 bar to
match the control pressure of the pressure reduc-
ing valve. The pre-charge pressure is checked us-
ing a car tyre gauge by unscrewing the plastic cap
opposite the water connection.
• Check all connections for tightness including the
immersion heater(s). An immersion heater key
spanner is supplied for this purpose.
• Ensure the drain cock is CLOSED.
• Open a hot tap furthest from the Pullin Evolu-
tion Solar.
• Open the mains stop cock to fill the unit. When
water flows from the tap, allow to run for a few
minutes to thoroughly flush through any residue,
dirt or swarf, then close the tap.
• Open successive hot taps to purge the system
of air.
SYSTEM CHECKS
• Check all water connections for leaks and rec-
tify as necessary.
• Remove the pressure reducing valve headwork
to access the strainer mesh; clean and re-fit.
• Manually open, for a few seconds, each relief
valve in turn, checking that water is discharged
and runs freely through the tundish and out at the
discharge point.
• Ensure that the valve(s) reseat satisfactorily.
SOLAR PRIMARY CIRCUIT
Fill the solar primary circuit following the instructions
provided with the solar hydraulic controls. The
cylinder temperature control probe supplied with the
solar controller must be fully inserted into the pocket
in the lower controls housing and the cable securely
clamped. Heating by the solar primary circuit is
controlled by the solar controller; refer to the
manufacturer’s installation instructions for details of
how to set up and connect the solar primary circuit.
The solar controller should be programmed to give a
maximum storage temperature in the Pullin Evolution
Solar of 70
o
C; 60
o
C is recommended to minimise
scaling.
SECONDARY HEATING COIL
Fill the indirect secondary circuit following the boiler
manufacturer’s commissioning instructions. To
ensure the Pullin Evolution Solar auxillary heat
exchanger is filled, the 2 port motorised valve
(supplied) should be manually opened by moving the
lever on the motor housing to the FLUSHING ONLY
setting. When the circuit is full return the lever to the
NORMAL USE position. Switch on the boiler, ensure
the programmer is set to Domestic Hot Water and
allow the Pullin Evolution Solar to heat up to a
normal working temperature (60
o
C recommended,
approximately graduation 4 on the thermostat). If
necessary the temperature can be adjusted by
inserting a flat bladed screwdriver in the adjustment
knob (located on top of the thermostat mounting
bracket - see Fig.10) and rotating. The minimum
thermostat setting is 10
o
C. The adjustment range 1
to 5 represents a temperature range of 30 to 70
o
C.
Check the operation of the indirect thermostat and
2-port motorised valve and that no water has issued
from the expansion relief valve or temperature/
pressure relief valve during the heating cycle.
BENCHMARK
TM
LOG BOOK
On completion of the installation and commissioning
of the Pullin Evolution Solar the Benchmark
TM
‘Instal-
lation, Commissioning and Service Record Log Book’
should be completed and signed off by the compe-
tent installer or commissioning engineer in the
relevant sections. The log book is included in the
back of this instruction book.
The various system features, location of system
controls, user instructions and what to do in the
event of a system failure should be explained to the
customer. The customer should then countersign the
Benchmark
TM
log book to accept completion.
This book should be left with the customer. The log
book includes sections that should be filled out when
any subsequent service or maintenance operation is
carried out on the Pullin Evolution Solar system.
DIRECT UNITS
Switch on electrical supply to the immersion
heater(s) and allow the Pullin Evolution Solar to heat
up to normal working temperature (60ºC recom
mended, approximately graduation 4 on the thermo
stat). If necessary the temperature can be adjusted
by inserting a flat bladed screwdriver in the adjust
ment knob on top of the immersion heater thermo
stat and rotating.
The adjustment range 1 to 5 represents a tempera
ture range of 10
o
to 70
o
C. Check the operation of
thermostat(s) and that no water has issued from the
expansion relief valve or temperature/pressure
relief valve during the heating cycle.
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