Wired Room Units & Outside Sensor - Potterton iHE 100 Installation & Servicing Instructions Manual

2.20 WIRED ROOM UNITS & OUTSIDE SENSOR
QAA55 R
OOM
R P
OOM OSITIONING
Install room units in the main occupancy rooms.
The place of installation should be chosen so that
the sensor 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)
The base provides the power for QAA55 and
QAA75. When the units are removed from the
base, power is cut off (i.e. the units are out of
operation).
iHE
U
NIT
QAA75 R
C
ONNECTIONS
Termi- Designa-
nal tion
1 CL +
2 CL -
3 G +
25
U
OOM NIT
QAA55 QAA75
BSB data BSB data
BSB ground BSB ground
Not used Power supply
DC 12V
GB/IE