Bosch GWI-N Series Training And Service Information page 11

There was an update in remote control software version in order to make it compatible for both products in the
market, so please refer to article code of the remote / software version to be used according this recommendation:
Old TTNR
(with SW WRAF0105)
7-736-503-406
7-736-502-925
The new remote controls are compatible for both Compact 4000S / Optiflow and have new reference and were
implemented from FD >= 660 (Dec. 2016). The old remote controls can be used up until end of stock only with
Compact 4000 S models.
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Flame indication:
Indication of flame in the burner
Warning symbol:
Combined with an error indication
/ warning code indicates a faulty
performance
Tap symbol:
Indication of not enough power to
reach set point
Solar application:
Indication that the automatic solar
function is activated, meaning that
the appliance is receiving pre-
heated inlet water, with no need
for burner to start
Fan operation:
Indication that the fan is in
Table 8 – Display Symbols
To be used only with
Compact 4000 S
Table 9 – Remote Control versions
6 720 814 719 SM FP_Australia 2017/04 EN
Symbol displayed when ionization is
The symbol is displayed and burner
operation
New TTNR
(with SW WRAF0106)
Can be used with Compact
7-736-504-467
7-736-504-469
detected - flame presence
In case symbol is displayed,
decrease (-) or increase (+) flow
accordingly
is shutdown when T in is under
following conditions:
T ≥ T – 1K
in set
The symbol is deactivated and
burner restarted when:
T < 60ºC (if T ≤ 50ºC)
out set
T < T + 10ºC (if T
out set set
4000 S / Optiflow
> 50ºC)