OJ WLCT3-19 - User Manual

INSTRUCTIONS
© 2017 OJ Electronics A/S
1
Waterline Room Controller/Sensor
English
Product programme
WLCT3-19 Wired room controller with clock
WLDT3-19 Wired room sensor with temperature adjustment, mode switch
(Auto, Day, Night, Frost Protection) and floor limit sensor
WLCT3-29 Wireless room controller with clock
WLDT3-29 Wireless room sensor with temperature adjustment, mode
switch (Auto, Day, Night, Frost Protection) and floor limit
sensor
Mounting of room controller/sensor (figs 1 and 2)
The unit is used for comfort temperature control in rooms. The unit should
be mounted on an internal wall approx. 1.4-1.7 metres above the floor in
such a way as to allow free air circulation around it. Draughts and direct
sunlight or other heat sources must be avoided.
BR1026A02a
© 2015 OJ Electronic A/S
Fig. 1 Removing the front cover
BR 1026A02a
BR1026A01a
1.4-1.7m
© 2015 OJ Electronic A/
S
Fig. 2
BR1026A01a
WLCT3-19 / WLDT3-19: Wired room controllers/sensors – bus
connection (figs 3 and 4)
Only OJ units which are suitable for two-wire communication can be
used. Standard installation cable of minimum 2 x 0.25 mm² can be used.
Units can be connected in conventional star formation or in bus mode
(daisy chain). The master has four sets of terminals marked SENSOR/
CONTROLLER BUS that can be used for connecting the 2-core signal
cable from the unit.
67337A 03/17 (HKT)
• English
• Polski
• Norsk
• Deutsch
Any unit can be connected to any pair of terminals. The total length of
the 2-wire system can be up to 300 m with a maximum length of 100 m
between any two units. For further information see the table below.
Remember to connect + to + and – to – .
Table: Length of cable
Standard cable Max cable length from
Master to Room Controller/
Sensor with display
Max cable length from
Master to Room Controller/
Sensor without display
≥0.25 mm² Up to 100 m * Up to 300 m
≥0.50 mm² Up to 200 m * Up to 300 m
≥0.75 mm² Up to 300 m * Up to 300 m
*) Up to 300m if operation without backlight is acceptable.
WLCT3-29 / WLDT3-29: Wireless room controller/sensor
The plastic battery pull tab must not be removed until the master is in
learn mode. For further information, please refer to the section titled Room
Sensors - Wireless Setup in the Installation Manual. The unit uses 2 x AAA
alkaline batteries. A lifetime of 1-2 years is expected. The unit is equipped
with a low battery alarm which beeps every 5 minutes in case of low
battery. If a unit is defective, or communication to the unit is interrupted,
an alarm will be triggered on the master, and the room will be heated
constantly at 20% output for safety. The alarm can be overruled for the
next 24 hours.
NB: WLCT3-29 / WLDT3-29 can only be used along with a wireless receiver
type WLRC3-19 or WLRC2-19.
Fig. 3
BR935A03A
Fig. 4
BR935A03A

OJ WLCT3-19 Specifications