Vaillant ecoMAX 665 Installation And Maintenance Manual - page 23
23
Installation and maintenance manual ecoMAX 665 / 0020020159_03
- Turn to the left (anti-clockwise): higher CO
2
content
- Turn to the right (clockwise): lower CO
2
content
Settings
Natural gas H
tolerance
CO2 after 5 minutes full-load operation
8.8 +/- 1.0
set for Wobbe index Wo
15.0
Table 5.2 Factory gas setting
• After the setting procedure, put the air intake pipe
back up.
• Check the CO
2
content again.
If necessary, repeat setting.
• Quit the P.1 test program by pressing the “+” and “i”
keys simultaneously. The measuring operation is also
quit when no key has been pressed for 15 minutes.
• Screw the screw (4) in.
• Put on the appliance casing.
5.3
Functional test
I
0
Fig. 5.5 Functional test
After installing the appliance and setting the gas, per-
form a functional test before commissioning the appli-
ance and handing it over to the user.
• Commission the appliance in accordance with the in-
structions in the relevant operating manual.
• Check the appliance for gas and water leaks.
• Check the flue system for leaks and that it is secured
and sealed properly.
• Check the ignition again and that the flame on the
burner is burning evenly.
• Check that the heating and hot water generation are
working properly.
• Pass the appliance on to the user.
The Vaillant ecoMAX 665 possesses status codes that
display the operating status of the appliance in the DIA
system display. A functional test of the hot water opera-
tion and heating operation can be carried out using
these status codes by pressing the “i” key.
Filling the storage tank
• Switch on the appliance and the connected hot water
cylinder.
• Make sure that the cylinder thermostat is requesting heat.
• Press the “i” key.
When the cylinder is correctly charged, the status code
“S.24” appears in the display.
Fig. 5.6 Display during recharging
Heating mode
• Switch on the appliance.
• Make sure that heat is being requested.
• Press the “i” key.
When the heating is running correctly, the status code
“S.4” appears in the display.
Fig. 5.7 Display during heating mode
5.4
Instructing the user
The user of the heating system must be instructed
about its functions and how to operate it. The following
measures in particular are to be carried out here:
• Hand over any instructions intended for the user as
well as the appliance documentation.
• Inform the user that the instruction manuals should
be kept near the appliance.
Note!
When you have finished the installation, attach
the sticker supplied (835593) to the appliance
in the user’s language.
Putting the boiler into service 5