Vaillant ecoMAX E SERIES, Инструкция по эксплуатации

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4 Operation
Instructions for use ecoMAX
6
Fig. B.3.1 Opening the service valves (646)
Fig. B.3.2 Opening the service valves (665)
• Ensure that the service valves in the heating flow and
return (4 and 3) and the gas service valve (1) are open.
The flow, return and gas service valves are open when
the line marking has the same direction as the pipe.
Attention!
The pressure relief valve is provided for safety
reasons and must not be interfered with.
4.2.2 Checking the water contents
Fig. B.4 Checking the water contents
•
Check the water contents of the system on the pressure
gauge (1).
The needle on the pressure gauge should be within the
green band (between 1 and 1.5 bar). If the needle dis-
plays a value below 0.8 bar when the appliance is cold,
follow the instructions left by your installer to refill the
system.
Alternatively, your installer should be called to refill the
system.
4.3 Domestic hot water operation
(ecoMAX 646 and 665 only)
Fig. Domestic hot water operation
ecoMAX 646 and 665 provides central heating and
domestic hot water where a separate indirect hot water
cylinder is also incorporated to the system.
Attention!
The boiler should only be used when the heating
system contains water. Use of the boiler without
water may cause damage to the boiler or its
components.
• Turn the main switch (2) to the “l” position.
• Set the maximum hot water temperature control to the
desired setting using the control knob (3). It means
- all the way to the very left = frost protection 15 °C
- all the way to the very right = max.70 °C
When the domestic hot water temperature is adjusted,
the boiler display will show the corresponding water
temperature. This information appears on the display for
about 5 seconds and then the display returns to its nor-
mal state (current heating flow temperature e.g. 45 °C).
Note!
Domestic hot water operation with ecoMAX 635:
When the installation is equipped with an exter-
nal hot water cylinder, your installer should have
instructed you how to set the temperature and
how to switch ON and OFF.
3
2
bar
2
1 3
0
bar
2
1 3
0
1
3
4
1
3
1
4
0020014608_00GB_032006 08.03.2006 17:15 Uhr Seite 6