1.6 Smartfit Remote Sensor.pdf

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REMOTE SENSOR UNIT
Q981A1000
FEATURES
Easily installed simple retrofit.
No power supply required.
Polarity free connections.
Simple wiring.
Enables the temperature to be measured
in any location.
APPLICATION
The Remote Sensor Unit allows a Smartfit Room Unit to control
to temperatures sensed in a location remote from the Room
Unit. This allows the Room Unit to be located in the most
convenient position for the user without regard to local
temperature.
The Room Unit will control the heating using the temperature
measured by the Remote Sensor. Programming and the Hot
Water function are unaffected.
1.6
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REMOTE SENSOR UNIT
Specification
Voltage Rating
Installation
The Remote Sensor must be located in
a position with good air circulation at
average ambient temperature preferably
on an inside wall about 1.5 metres from
the floor.
The Remote Sensor must not be
positioned in drafts, above a radiator or
where it will be subject to localised heat
gains from direct sunlight, water pipes or
appliances.
The wall plate is removed by depressing
the locking tab using a screwdriver.
The wall plate is mounted in a suitable
location on a wall-box or directly on a wall.
Connect the cable from the Base Unit to
the two terminals on the wall plate, note
the cable may be any suitable Extra Low
Voltage cable such as bell wire.
Alternatively, line voltage cable between
0.5mm 2 and 2.5mm 2 can be used.
After all connections have been made
then the set up routine will need to be
carried out before the unit will become
operational, this routine is explained in
the installation instructions.
: Powered by low voltage bus
Frequency of measurements
: >60 seconds
Accuracy
: @20˚C ±0.3K
Operating Temperature Range
: 0-40˚C
Shipping and Storage Temp.
: -20-55˚C
EC Directive
: Conforms to 89/336/EEC
Wiring
Ordering Specification
Q981A1000
Remote Sensor
Dimensions
Alternatively the Remote Sensor Setpoint unit connections may be made at any point
along the Room Unit – Base Unit wiring.
A
B
C
83
87.7
27.6
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