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Switch on the boiler, ensure the programmer is set to Domestic Hot Water. Allow the Mega-
flo unit to heat up and check that the indirect thermostat and 2-port motorised valve operate
correctly. A storage temperature of approx. 60
C is recommended (approx. graduation 4 on the
o
indirect thermostat). If necessary the temperature can be adjusted by inserting a flat bladed
screwdriver in the adjustment knob (located on the front of the thermostat mounting bracket see
Figure 12) and rotating. The minimum thermostat setting is 10
C. The adjustment range 1 to 5
o
represents a temperature range of 30
to 70
C.
o
o
Check that no water is discharged from either the Expansion Valve or Temperature and Pres-
sure Relief Valve during the heating cycle.
6.5 BENCHMARK
LOG BOOK
TM
On completion of the installation and commissioning procedures detailed in this manual the
Benchmark
"Installation, Commissioning and Service Record Log Book" should be completed
TM
and signed off by the competent installer or commissioning engineer in the relevant sections.
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
log book to accept completion.
TM
The log book should be left with the customer along with these instructions. The log book
includes sections that should be filled in when any subsequent service or maintenance operation
is carried out on the Megaflo.
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