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Junkers TW 2 Manual

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TW2
7
English
Contents
1 Safety Notes 7
2 Details of Unit 7
3 Mounting 8
4 Electrical Connection 8
5 Operation 8
6 Important Notes 10
7 Error Localisation 11
1 Safety Notes
Correct functioning is ensured only when these
instructions are observed. We request that this
booklet be given to the customer.
Do not connect the remote control to the
230-V power mains.
This remote control is to be used only with
the central heating appliances listed.
The remote control is to be connected to
the respective heating equipment only in
accordance with the circuit diagram.
Before the mounting of the remote control,
the power supply (230 V, 50 Hz) to the
heating equipment must be interrupted.
2 Details of Unit
2.1 Application
The TW2 remote control unit is only suitable for
use with outside-temperature controlled central
heating programmers with built-in timer.
It can be combined with the following central
heating appliances:
The TW2 can be used as a remote control with
or without room thermostat function (see Sec-
tion 5.3, "Room Thermostat Switch (h)").
Note: For use as a remote control without
room temperature sensing, any mount-
ing location can be selected.
For use as a remote control with room
temperature sensing, the unit must be
mounted according to Fig. .
2.2 Technical Data
TYPE
ZR/ZWR/ZSR…-3/-4
ZR/ZWR/ZSR/ZE/ZWE...
ZV/ZWV 20 A
Heating equipment with Bosch Heatronic
K/KN..-8 E/EC/P/KP
Mixer control + TA 130 A
Height 82 mm
Width 82 mm
Depth 42 mm
Rated Voltage 24 V DC
Rated current
regulator (clock) 0.01 A
Regulation range with room
temperature sensing
Central Heating Mode
Economy Mode
Switch (h)
in position ●
18.5…21.5 °C
15.5…18.5 °C
Change in the feed tempera-
ture without room tempera-
ture sensing
Central Heating Mode
Economy Mode
Switch (h)
in position
O
-12 K…+12 K
-37 K…-13 K
Minimum temperature
changing speed 0.05 K/min
Allowable environmental
temperature 0 … +40 °C
Protection class
III
Protection type IP 20
2
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