ANDREWS COMBIfl o
38
GB
4.19.1 OUTSIDE SENSOR B9 (OPTIONAL)
This outside sensor is a NTC 1K resistance type. It is a passive sensor for
monitoring of outside air temperature and to a small extent - solar radiation.
It should be mounted so that it is not exposed directly to the sun (especially in
the morning). In case of doubt it should be located on a wall facing North to
North-West. The infl uence of the wind and the temperature of the wall must also be
considered.
When fi tting an outside sensor to the appliance, please remember to remove and discard the
resistor fi tted between the electrical connection points.
4.19.2 ROOM UNITS QAA55 (OPTIONAL)
QAA55
(P/N 5138511)
4.19.3 POSITIONING OF ROOM UNITS
Install room units in the main occupancy rooms. The place of installation should be chosen so that the sen-
sor can capture the room temperature as accurately as possible without getting adversely aff ected by direct
solar radiation or other heat or refrigeration sources (about 1.5 metres above the fl oor)
See illustration on the following page for guidance on sensor positioning
4.19 OUTSIDE SENSOR & WIRED ROOM UNITS
Summary of Contents for COMBIflo 100/300
Page 9: ...ANDREWS COMBIflo 7 GB 3 1 GENERAL DIMENSIONS CONNECTIONS 3 0 TECHNICAL DATA ...
Page 12: ...ANDREWS COMBIflo 10 GB 3 4 APPLICATION EXAMPLES Single Heating Circuit Simple ...
Page 13: ...ANDREWS COMBIflo 11 GB Single Heating Circuit Immersion DHW Circulation pump ...
Page 16: ...ANDREWS COMBIflo 14 GB Heating Circuit External 0 10V control ...
Page 17: ...ANDREWS COMBIflo 15 GB BMS INTERNET CONNECTIONS ...
Page 18: ...ANDREWS COMBIflo 16 GB 3 5 WIRING DIAGRAMS PCB 1 ...
Page 19: ...ANDREWS COMBIflo 17 GB PCB 2 3 ...