Bosch 7 KW Manual de instrucciones Pagina 27

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27
Press the power switch ON/OFF
Check the sight glass
Commissioning the heat pump
The heat distribution and heat transfer fl uid circuits should be fi lled and
fully vented before commissioning. Always check that there are no leaks
before back fi lling with earth.
If radiators are used, they should be fully open when connecting to an
existing heating system. When connecting to an underfl oor heating system
at least half of all the fl oor coils should be open. When connecting a fan-
assisted radiator system the fans are started fi rst and then the valves on
the fan-assisted radiators are opened fully.
Manual test run of the heat pump
Instead of starting the heat pump directly in normal mode, manually test
run the circulation pumps and valves. This is recommended as in this mode
possible faults can be found. In the menu display Manual operation of all
functions (menu 5.3) all functions can be run manually. Press the Select
button to start test operations. When exiting from the menu display the heat
pump returns to normal mode.
Seized circulation pumps
Check that the circulation pumps have not seized before starting the heat
pump for the fi rst time.
Fully remove vent plug, check and if necessary free the pump rotor by
turning the slotted end of the shaft with a screwdriver
Start the heat pump
1. Connect mains to the heat pump and press the ON/OFF switch on the
control panel.
2. Activate the Installer/Service menu by pressing the Menu button until
the text Access = SERVICE is shown on the menu display.
3. Temporarily adjust Temp. incr. / decr. to maximum value. To avoid
having to wait for the heat pump restart timer go to the menu Fast
restart of heat pump (menu 5.6) and quickly restart the heat pump. If
the heat pump does not start, press the Info button to see if a heating
demand exists.
4. Check the sight glass inside the heat pump during start up. Bubbles
may appear in the sight glass for up to fi ve minutes during start up
after which time they should disappear. Bubbles present when the
heat pump is running after this period are an indication of a fault. They
are probably due to insuffi cient refrigerant. Read more about the fault
symptom under the heading What to do if a fault occurs.
Note
Further important information on the
control unit can be found in the user
guide.
Therefore read the entire documenta-
tion before commissioning is started.
Rego 637W I/S
060822 16:08:15 Tu
Heat Info Menu
Commiss./Service
Fast restart
of heat pump 5.6
Return Select
Commiss./Service
Manual operation of
all functions 5.3
Return Select
Commissioning the heat pump
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