H4 Mode; H5 Mode; H6 Mode; H7 Mode - Bosch Singular 4000 Installation Instructions Manual

10.5.5 H4 mode

 This is the mode for checking the current number of revolutions of the fan.
 H4 and the current number of revolutions of the fan (Example : 3600) will
be displayed repeatedly on the screen.
 The unit is rpm.
Figure 58

10.5.6 H5 mode

 This is the mode for checking the output voltage of the fan.
 H5 and the output voltage (Example : C5) will be displayed repeatedly on
the screen.
Figure 59
Singular Combi Boiler - BTC 439003301 B (2021/07)

10.5.7 H6 mode

 This is the mode for checking the current exhaust gas temperature.
 H6 and the current exhaust gas temperature (example: 120) will be
displayed repeatedly on the screen.
 The unit is °F.
Figure 60

10.5.8 H7 mode

 This is the mode for checking the current hot water temperature.
 H7 and the hot water temperature (example: 100) will be displayed
repeatedly on the screen.
 The unit is °F.
Figure 61
Installation Instructions
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