TSHK 681, 682 - sauter-controls.com sauter-controls.com

21.166/1
TSHK 681, 682: Fan-coil room-temperature controller, with digital display
How energy efficiency is improved
Provides demand-led control of HVAC components; cuts off automatically when not in use.
Areas of application
Intelligent unitary temperature control in residential and business premises for activation of, for
example, electric heating systems, thermal drives or also fans or cooling equipment in air-conditioning
systems.
Features
LCD display for showing room temperature or setpoint, two keys (±) for adjusting the setpoint.
Output for heating or cooling depending on type of connection or reversal of direction of travel
with external switch
With main switch for mains power and slide switch for three fan positions
Suitable for fitting onto walls or recessed junction boxes
Electronic analysis system and switching relay
Technical description
Housing made of pure white, flame-retardant thermoplastic (RAL 9010, fire classification as per
UL94 HB)
Base made of black thermoplastic with NTC sensor
Cable inlet at rear, screw terminals for wires of up to 2.5 mm²
Quasi-constant temperature control
2-point pulsed activation
Switching capacity: up to 6 A
Type Operating mode Power Weight
kg
TSHK 681 F001 Heating/cooling or heating & cooling; 2-pipe 230 V~ 0.18
TSHK 682 F001 Heating & cooling; 4-pipe 230 V~ 0.18
TSHK 681 TSHK 682
Mains switch, on/off ()
Mode switch OFF
Fan speeds
Display °C digital °C digital
Wiring diagram A09186 A09476
Power supply 1) ± 10%, 50/60 Hz Time behaviour in air: Dead time Time constant
Switch rating 3 (2) A, 230 V~ still 2 min 20 min
Ventilator 6 (3) A, 230 V~ moving (0.2 m/s) 1 min 15 min
Ambient temperature 0...55 °C
Setting range 5...30 °C; resolution 0.5°C Degree of protection IP 30 (EN 60529)
Actual-value display 0...40 °C; resolution 0.1°C Protection class II (IEC 60730)
P-band Xp 3 K Wiring diagram see table
Hysteresis 1) approx. ± 0.1...0.5 K Dimension drawing M09206
Shortest switching period approx. 18 min (E = 0.5) Fitting instructions MV 505726
Operating instructions BA 505763
Accessories
0362237 001* Room sensor in housing (75 × 75 mm), for ext. temperature measurement (max. 50 m)
0362238 001* Cable sensor, 4 m long, of PVC, for external temperature measurement (max. 50 m)
0362239 001* Intermediate cover plate in pure white; fits various recessed junction boxes
*) Dimension drawing or wiring diagram are available under the same number
T
Y01934
1) The device is electronically made to pulse. The control factor falls to nought at the ‘heating’ output as the temperature rises and rises at the
‘cooling’ output to E = 1. The pulsing causes a small temperature deviation of 0.1...0.5 K, depending on the time constant of the room.
Operation
The room temperature is measured using an internal NTC temperature sensor and then compared
with the setpoint. An electric switching relay is pulsed in relation to the temperature deviation. When
the setpoint has been reached, the control factor = 0.5. The control system has proportional behaviour
with a P-band of 3 K.
In the event of a power failure (for longer than 1 s), the setpoint is lost. If the setpoint is not re-entered,
a value of 22 °C is automatically set.
Engineering and fitting notes
Fitting position: horizontal on walls, avoiding draughts and insolation, at a height of approx. 1.5 m.
Sauter Components 7121166003 04

21.166/2 TSHK
Wiring diagram
TSHK 682
TSHK 682
000
T
L
N
+
°C
-
1
N 11 19 3
Off
2 6 7 20 21 22
OFF
I II III
B09520
N
L
L< 50m
A09476
Dimension drawing
Accessories
127
362237
Ø 6
75
Ø 4
Ø 60
75 25
M09221
28,6
362238
0,5 mm 2 135,5 11,5
4 m
20
M09206
Ø 7,8
362239
M09222
83
M09152
Printed in Switzerland
Right of amendment reserved
N.B.: A comma between cardinal
numbers denotes a decimal point
© Fr. Sauter AG, CH-4016 Basle
7121166003 04
Sauter Components