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Regulating The Gas; Technicians); Factory Settings; Service Function - Bosch Optiflow GWH16 3 CT E23 F6 L S2405 Installation Manual

Gas continuous flow water heaters
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Calibration example
Setpoint
Water temp. at tap Setpoint calibration
55 °C
53 °C
Table 9
5
Regulating the gas (only for authorised

technicians)

5.1

Factory settings

The data plate on the each appliance will show the factory
setting of that appliance.
Natural gas
The appliance must not be operated if the
dynamic connection pressure is less than
1.13 kPa or greater than 2.75 kPa.
LPG
The appliance must not be operated if the
dynamic connection pressure is less than
2.5 kPa or greater than 4.5 kPa.
DANGER:
▶ The operations described below must only
be carried out by an authorised technician.
5.2

Service function

Accessing the service menu
▶ Press and hold down at the same time
for 3 seconds.
Fig. 9
Service function
The display will show "P2".
The service function is now activated.
Optiflow
+2 °C
,
, and
6720806426-02.1V
Regulating the gas (only for authorised technicians) | 15
5.3

Adjusting the appliance

Always start the adjustment by P1 followed
by P2.

5.3.1 Access to test pointsads

▶ Remove the front of the appliance.
A
6720817545-04.1V
Fig. 10
[A] Air pressure test point
[B] Gas pressure test point

5.3.2 Adjusting the maximum flow (Parameter P1)

▶ Turn on the appliance using the ON/OFF button.
▶ Loosen the test point screw of the gas pressure test point
[B].
▶ Connect the pressure gauge connection "+" to the gas
pressure test point.
▶ Loosen the test point screw of the air pressure test point
[A].
▶ Connect the negative (-) side of the pressure gauge to the
air pressure test point [A].
▶ Enter the service mode by pressing and holding down the
,
, and
seconds.
▶ Display will show "P2".
▶ Press
until the display shows "P1".
▶ Press the button
Display will show "E".
▶ Press
until the display shows "L1".
+
-
buttons simultaneously for 3
.
6 720 817 545 (2016/02)
B

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