8 Functional Checks (Commissioning Part III)
Instructions for Installation and Servicing turboMAX pro R3
26
8.3 Adjusting pump speed
The unit is fitted with a two-speed pump. The pump is
delivered with the switch (1) set to position III.
Attention!
Important note:
The boiler should only be operated at pump set-
ting III because the heating capacity for hot
water is reduced when operated at pump
setting II!
It is possible, however, to change the pump setting from
Level III to Level II manually when there is noise coming
from the heating system.
Fig. 8.3: Pump speed
Final system flush („HOT“)
• Turn on the boiler for central heating and allow the
boiler and system to reach operating temperature.
• Check that the heating system is watertight.
• Turn the boiler off and rapidly drain both boiler and
system while still hot.
• Refill the system and release all air. Release water
from the system until the system design pressure of
1.0 bar is attained.
(The actual reading on the pressure gauge should ideal-
ly be 0.5 bar plus an additional pressure corresponding
to the highest point of the system above the base of the
boiler - 10 m head equals an additional 1 bar reading on
the pressure gauge. The minimum pressure should not
be less than 1 bar in any installation.)
If the system is to be treated with an inhibitor it should
be applied at this stage in accordance with the manufac-
turers instructions.
Further information can be obtained from Sentinel,
GE Betz. Widnes, Cheshire, WA8 8UD.
Tel: 0151 420 9595
• Disconnect the temporary filling connection.
• Refit the boiler casing.
• Attach the bottom cover to the boiler by securing with
the four screws provided. It may be necessary to
apapt the bottom cover by removing the easy break
sections.
8.4 Handing over to the user
• Set the maximum radiator temperature control to the
desired setting.
• Set the maximum hot water temperature control to
the desired setting.
• Instruct the user in the safe and efficient operation of
the boiler, in particular the function of:
-
The boiler on/off control
-
The maximum radiator temperature control
-
The maximum hot water temperature control
-
The pressure gauge
• Show the user how to operate any external controls.
• Explain to the user the importance of having the boi-
ler regularly serviced by a competent servicing com-
pany. To ensure regular servicing, it is strongly recom-
mended that arrangements are made for a
Maintenance Agreement. Please contact Vaillant
Service Solutions (0870 6060 777) for further details.
• Ensure the Benchmark gas boiler commissioning
checklist is fully completed.
Failure to install and commission this appliance to the
manufacturers instructions may invaludate the war-
ranty (Note: This does not affect your statutory
rights).
• Leave the user instructions in the clips provided in the
front panel of the boiler.
• Leave the installation and servicing instructions with
the user.
Note!
When you have finished the installation, attach
the sticker supplied (835593) to the appliance
in the user’s language.
Attention!
The device may only be used
• for initial operation
• for testing
• for continuous operation
with the chamber cover closed and with the flue
system fully mounted and sealed.
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