gledhill benchmark BoilerMate A-Class OV Series Design, Installation And Servicing Instructions page 32

2.3 COMMISSIONING
Commissioning Space Heating
(a) The central heating is best commissioned when the store is hot and therefore
should be carried out after commissioning the BoilerMate.
(b) Move the central heating control rocker to the constant position, set heating
programmer to continuous and ensure that the room thermostat is calling for heat.
This will be indicated by display segments V1.3 and V1.4 being on respectively. The
BoilerMate controller will now:-
• Turn on the central heating pump and this will be indicated by display segment
H2.2 being lit.
(c) Wait until the heating circuit has reached its normal temperature before balancing
the system in the usual way to achieve a temperature drop of about 10
(d) Set the programmer and room thermostat as per manufacturer's instructions
supplied with the appliance and ensure that the programmer instructions along with
the user instructions for the appliance are left with the user.
Commissioning Domestic Hot Water System
(a) When the store is hot, open a hot water tap nearest to the appliance at
approximately 6 litres/minute. After about 2 – 3 seconds, the plate heat exchanger
pump will start.This is indicated on the A.C.B. by display segment H2.1.
(b) The hot water flow temperature should settle at about 52ºC. Close this tap and
open the hot bath tap at maximum flow rate and record the flow rate and the hot
water temperature in the 'Benchmark' logbook.
(c) Close the hot water tap(s) and after few seconds, the plate heat exchanger pump
will stop running and display segment H2.1 will turn off.
(d) It is recommended that the hot water rocker is left on constant so that hot
water is always available.The central heating rocker should be left on timed and
the clock set to control the times heating is required.
Hand over to User
(a) Explain the system and the BoilerMate appliance controls to the user.
(b) Explain how to operate the heating and hot water controls to the user.This should
include setting'on'and'off'times and the room temperature on the room thermostat
as well as the use of thermostatic radiator valves.
(c) Advise on boiler operation and maintenance advised in the boiler manual.
(d) Explain how to select and check the operation of the emergency backup electric
boiler 'switch operation' - if there is a failure of the boiler.
(e) Handover appliance and room thermostat user instructions and put the completed
"Benchmark" logbook and the appliance instruction manual in the pocket on the
inside of the appliance front panel.
(f ) DON'T place any clothing or other combustible materials against or on top of this
appliance.
Thisproductiscoveredbythe'Benchmark' scheme and a separate commissioning/
service log book is included with this product. This must be completed during
commissioning and left with the product to meet the Warranty conditions
offered by Gledhill.
2.0 INSTALLATION
These Instructions should be placed along with
the component manufacturers instructions in the
pocket provided on the rear of the front panel.
The front panel should then be refitted.
Important Do's and Don'ts
1. DO check the incoming mains water
pressure and flow rate are adequate.
(The preferred range of mains pressure is
2-3bar).
2. DO check that all connections are in
accordance with the labelling on the thermal
store.
o C.
3. DO adjust the ballvalve so that the
water level in the F & E cistern when
the system is cold is correct and does not
overflow when the whole of the
system is at maximum temperature.
4. DO make sure that there is adequate
clearance above the F & E cistern to
service the ballvalve.
5. DO ensure that the range rated
appliances are set at the highest output
and the boiler thermostat is set to maximum
for all boilers.
6. DO ensure that the water level in the
F & E cistern is at least 250mm above
the highest point on the radiator circuit or the
highest point of the system.
7. DO insulate any exposed pipework in the
BoilerMate cupboard.
8. DO plumb the overflow/warning pipe in a
20mm internal diameter pipe material which
is suitable for use with a heating F & E cistern,
in accordance with BS 5449 (such as copper)
and ensure it has a continuous fall and
discharges in a conspicuous external position.
9. DO check the pump settings
a. The boiler pump should be set to give a
temperature difference across the boiler
of 8°C or less.
b. The heating pump should be set to give a
temperature difference across the flow and
return of not more than 11°C.
c. The hot water plate heat exchanger pump
should be set at maximum.
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