Adapting The Appliance To The Heating System 6; Setting Central Heating Output (Range Rating) - Vaillant ecoMAX 665 Installation And Maintenance Manual

6 Adapting the appliance to the
heating system
6.1

Setting central heating output (range rating)

The appliances are set in the factory to the thermal load
shown in table 6.1. If you want to set a different load,
proceed as follows:
• Press the "i" and "+" keys simultaneously.
• Continue to hold the "+" key down until "d.0" appears
in the display.
The display runs from "d.0" through to "d.99" and
starts again at "d.0".
• Press the "i" key.
The "=" symbol appears in the display. Then the set par-
tial load is displayed in kW.
• By pressing the "+" or "-" keys you can now increase
or decrease the value in 1 kW increments.
The displayed value flashes during the setting proce-
dure. The possible setting ranges are to be found in
table 6.1.
Installation and maintenance manual ecoMAX 665 / 0020020159_03

Adapting the appliance to the heating system 6

• Then hold down the "i" key for about 5 seconds until
the display stops flashing.
The value is now saved. The standard display appears
again in the display (current heating supply tempera-
ture, e.g. 45 °C).
• Quit the setting mode by pressing the "i" and "+" keys
simultaneously.
The setting mode is also quit if you do not touch a key
for 4 minutes.
ecoMAX
665
Table 6.1 Setting range for partial-load heating
Setting range Factory setting
in kW in kW
14.0 - 65.0 60.0
25