andrews COMBIflo 100/300 Installation, Operation And Maintenance Manual page 45

2. Connect a water supply to the fi ll/drain point of the appliance (see 3.1 for location details) and fi ll with
water, until the auto air vents stop venting. Do not exceed 4 bar as this will open the automatic pressure
relief valve.
3. With the gas supply to the appliance turned off,
(see below)
4. Allow the appliance to cycle through fi ve attempts per heat engine. Th is will operate all internal pumps,
until all heat engines are locked out. Press the reset button for a second to start the process again.
5. Repeat until all air has been removed and the appliance pumps are running quietly. Confi rm that the circu-
lation pump of each heat engine is operating correctly by checking that a solid green LED is illuminated on
the front of each heat engine pump and "C3" is displayed on the primary DHW pump. Do not proceed if the
LED are fl ashing green or are red (see 6.4, items 24 & 25 for location details).
6. Recommended fi ll pressures: Min 0.5 bar, Max 3.5 bar.
7. Check for water leaks inside and outside of the appliance and retighten joints as necessary.
8. Top up inhibitor levels as necessary (see 4.4 for details)
ANDREWS COMBIfl o DRAFT
Use the Graphical User Interface (GUI) to turn DHW on
on
60 O C
43 GB/IE