Electrical Connections - Zem Boilers; Using The Qaa 73; Setting The Qaa 73 - Bosch REG 73-1 Bedienungsanleitung

3 - ELECTRICAL CONNECTIONS - ZEM BOILERS

- Connect the 2-pin connector (4) to the
QAA 73 room sensor cable then connect it to
the QAA terminal on the control panel,
4
- Secure the QAA 73 room sensor cable to the
control panel using the cable clamp (2),
2
- remove the 2-pin connector (16) and its
shunt from the TT terminal of the control pa-
nel -
the heating setting will then be provided by
the QAA 73 room sensor and the heating po-
tentiometer of the boiler's control panel will
be inactive.
If the shunt is not removed, the
! heating setting given by the po-
tentiometer remains active if
this setting is greater than the
one set on the QAA 73 room
sensor.
(refer to § Commissioning chapter
COMMISSIONING in the technical instruc-
tions of the boiler).

3.1 - Using the QAA 73

For the QAA 73 using, refer to the "instructions"
leaflet supplied with the QAA 73 sensor

3.2 - Setting the QAA 73

For the QAA 73 setting, refer to the technical
instructions of the boiler.
- 6 -
INSTALLATION
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VI -