Commissioning
Greenstar 4000 – 6 720 891 161 (2020/09)
48
6.11 Finishing commissioning
Fitting the front casing
▶ Fit the front casing making sure that the securing points are properly
located.
– Lift the front casing onto the locating bracket on the top of the
appliance.
– Push the bottom of the casing into position and tighten the bottom
two screws [1].
Fig. 68 Fitting the front casing
At the time of commissioning, complete all relevant sections of the
Benchmark Checklist located in the Technical Specifications/Logs
section of this document.
Benchmark menu
▶ Press and hold the ( and * keys for approximately 3 seconds to
enter the Service menu.
▶ Press the ok key to select the Benchmark menu.
Benchmark menu information:
• Flow temp.
• DHW flow rate
• DHW act. temp.
Appliance handover:
▶ Complete the Benchmark Gas Boiler Commissioning Checklist.
▶ Show the customer the special features of the appliance.
▶ Show the customer the efficiency tips in the User Instructions.
▶ Set up the appliance controls and show the customer how to operate
all the control unit/s for central heating and DHW operation.
– Also show where in the appliance/controls documentation where
this information can be found.
▶ Where applicable, instruct the customer on:
– how to check the system pressure and re-pressurise if necessary.
– how to set the TRVs.
– how to reset the appliance.
▶ Show the customer the fault finding section in the User Instructions.
▶ Show the customer where the serial number/appliance information is
located, they will need this information if they call in with a problem
(Benchmark Commissioning checklist on page 92 contains all
relevant appliance information).
▶ Give the customer details of how to contact the installer/ gas
emergency numbers.
▶ Show the customer how to safely isolate the appliance.
▶ Advise the customer where they can find information on the
Worcester, Bosch Group website www.worcester-bosch.co.uk.
▶ Ensure that all documentation, is left with the appliance or
homeowner.
– Appliance documentation.
– Controls documentation.
– Any other equipment documentation that is connected to the
appliance or system.
▶ Appliance not in use
– If the appliance is not going to be used immediately and may be
exposed to freezing conditions, advise the customer of the
precautions necessary to prevent damage to the appliance,
system and building.
– If the appliance is unused and exposed to freezing conditions,
safely isolate all the mains supplies and drain the system and
appliance, label accordingly.
▶ Show the customer the location of the condensate pipe run in
unheated or external areas that may be at risk of freezing during
prolonged cold spells.
▶ User recommendation:
– Advise the user to have the appliance and heating system
thoroughly serviced annually by a competent, registered gas
engineer, such as a Gas Safe registered engineer or British Gas
engineer. In the Republic of Ireland servicing work must be carried
out by a Registered Gas Installer (RGII).
– Present, where relevant, maintenance aids and reminders within
the appliance menus.
– Arrange an inspection/maintenance contract with an approved
heating contractor.
Handover tool
To assist your customer with the handover of the
boiler, including how to use its key features,
please scan this QR code.
QR code scanning apps are available for free on
all platforms.
CH control set point temperature set above the factory default of
65 °C.
If the factory default CH temperature has been adjusted.
▶ Note the change of temperature in the Benchmark Gas Boiler
Commissioning Checklist.
▶ Inform the customer that the factory default CH temperature has
been adjusted above 65 °C and if a thermostatic mixing valve (TMV)
at the point of use (e.g. before the bath hot tap or shower) to protect
vulnerable people from scalding has been fitted.
6.11.1 Appliance/product guarantee
This appliance/product has a guarantee against faulty materials or
workmanship for a period from the date of installation subject to the
terms and conditions.
For full terms and conditions, please visit:
www.worcester-bosch.co.uk/guarantee-terms-and-conditions
Guarantee registration
Your appliance/product carries a guarantee against faulty material or
manufacture subject to Terms and Conditions.
To read the full Terms & Conditions please visit us on-line at
www.worcester-bosch.co.uk/guarantee.
Your statutory rights are not affected by the manufacturer’s guarantee
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