Kielmann KET-204D Quick start guide

Technical Guide
Thermostats Air Conditioning

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TECHNICAL GUIDE
THERMOSTATS AIR CONDITIONING
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Note: Technical information contained in this catalog may be changed or updated by the manufacturer without
notice for the benet of the excellence, service or presentation of the products. No liability is assumed for the use
of this information.

Rev. 00 07-14
THERMOSTATS AIR CONDITIONING
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I. DIGITAL THERMOSTATS
Perfect manufactured thermostats especially designed
for domestic, industrial and commercial applications.
Ideal for (heat or cold) temperature control of conned
spaces.
They are highly sensitive and safe, and have a liquid-
display digital thermometer for accurately monitoring
room temperature.
• Base and re-resistant cover
• One-piece design for easy installation with
convenient wiring
• LCD display for a precise room temperature reading
• System in “OFF” for opening all circuits
• Instant protection against overload and pulse
FEATURES
(D) = Type of Display :
With “D” : Digital Display
Without “D” : Analog Display
(ZZ) = Model
(Y) = Voltage : 2: 24VAC
1: 110VAC
0: 220VAC
(X) = Series
(ET) = Product : Thermostat
(K) = Manufacturer :
K ET - (X) (Y) (ZZ) (D)
NOMENCLATURE
THERMOSTATS AIR CONDITIONING
thermostats are devices designed to
maintain temperature at a particular point in a space or
system. They can be electronic, digital and analog. They
can open or close an electrical circuit depending on
the temperature, keeping it within a set range or level.
• They are designed for measuring or controlling the
temperature
• The simplest types have a bimetallic plate for
opening or closing a circuit which activates or
deactivates a compressor
• The most sophisticated models can function at
microprocessor levels
• They have a wide range of applications in domestic,
commercial and industrial refrigeration and AC
systems
• Multiple mounting congurations
• Easy and friendly use

Rev. 00 07-14
THERMOSTATS AIR CONDITIONING
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Reference
Type Temperature
Range
Δ
Temperature
Temperature
Sensor
Thermostat Fan Switch
Consumption
(With Load)
Connection
Type of
Protection
System Fan Energy Voltage Energy Voltage
KET-204D
KET-214D
KET-224D
ON - OFF
H I GH - MED - LOW
+10°C a +30°C
(+50°F a +86°F)
Aprox.
±0,5°C a ± 0,8°C
(±1°F a ±2°F)
Unipolar
Gas
Filled
Bellows
1A
24VAC
115VAC
250VAC 6(2)A
24VAC
115VAC
250VAC
0,6VA
3VA
6VA
Screw
Terminals
IP20
KET-205D
KET-215D
KET-225D
HEAT - OFF - COOL
KET-206D
KET-216D
KET-226D
HEAT - OFF - COOL -
4 TUBES
KET-220D ON - OFF
250VAC 250VAC -
KET-221D HEAT - OFF - COOL
KET-701D
KET-711D
KET-721D
COOL ONLY
8
Speeds ±0,5°C (±1°F)
NTC
Thermistor,
Negative
Temperature
Coefcient
(10k)
(0,8)A
24VAC
115VAC
220/230VAC
2(1)A
24VAC
115VAC
220/230VAC
IP20
KET-702D
KET-712D
KET-722D
HEAT - OFF - COOL
KET-703D
KET-713D
KET-723D
HEAT - OFF - COOL -
4 TUBES
Reference
Casing LCD DISPLAY
Material Color Type Power Source Temperature
Range Δ Temperature Precision
KET-204D
KET-214D
KET-224D
Fire-resistant
Hard Plastic
White LCD Display
DC 5V± 5%
+10°C a +50°C
(+50°F a +99°F) ±0,2°C (±0,5°F) + 1 0 ° C a + 5 0 ° C ( ± 0 , 2 ° C ) +50°F a +99°F (± 0,5°F)
KET-205D
KET-215D
KET-225D
KET-206D
KET-216D
KET-226D
KET-220D
+10°C a +40°C
(+50°F a +99°F) ±0,5°C (±1°F) + 1 0 ° C a + 4 0 ° C ( ± 0 , 5 ° C ) +50°F a +99°F (± 1°F)
KET-221D
KET-701D
KET-711D
KET-721D
Fire-resistant
ABS Plastic DC 5V± 5% +10°C a +30°C (+50°F a +86°F) ±0,2°C (±0,5°F) + 1 0 ° C a + 3 0 ° C ( ± 0 , 2 ° C ) +50°F a +86°F (± 0,5°F)
KET-702D
KET-712D
KET-722D
KET-703D
KET-713D
KET-723D
KET-701D KET-220D

Rev. 00 07-14
THERMOSTATS AIR CONDITIONING
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CONNECTION DIAGRAMS AND DIMENSIONS
Reference Connection Diagram Dimensions (mm)
KET-204D
KET-214D
KET-224D
KET-205D
KET-215D
KET-225D
KET-206D
KET-216D
KET-226D
KET-200D
KET-201D
1
2
3
4
5
6
LOW
MED
HIGH
N
L
Fan
Motor
M
N
Valve
1
2
3
4
5
6
7
LOW
MED
HIGH
N
L
Fan
Motor
M
N L
L
Valve
Valve
Cooling
Heating
Fan
Motor
1
2
3
4
5
6
7
SW1
SW2
L M H
1
2
3
4
5
6
7
SW1
SW2
L M H
H
92
92 36
31
HEAT
OFF
COOL
HIGH
MED
LOW
ºC
10
15
20
25
30
Valve
Line
Fan
Motor
Valve
Line
87
97
37
1.5m

Rev. 00 07-14
THERMOSTATS AIR CONDITIONING
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CONNECTION DIAGRAMS AND DIMENSIONS
Referencia Diagrama de Conexión Dimensiones (mm)
KET-701D
KET-711D
KET-721D
KET-702D
KET-712D
KET-722D
KET-703D
KET-713D
KET-723D
1
2
3
4
5
6
7
8
9
L
N
LOW
MED
HIGH
N L
Valve
F
A
N
Rx
GO Sensor Ext. 86
98
20,5

Rev. 00 07-14
THERMOSTATS AIR CONDITIONING
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II. ANALOG THERMOSTATS
Perfect manufactured thermostats especially designed
for domestic, industrial and commercial applications.
They have a temperature control valve or an electric
actuator for activating the cooling system, when a
signal is generated after room temperature and
adjusted temperature are measured and compared.
Low voltage room thermostats are used in self-powered
generating systems of 750mV or 24VAC.
They are also used for temperature control of different
areas of central air conditioned systems.
• Fire-resistant base and cover
• Simple and innovative design
• Adjustable installation and convenient wiring
• Manual knob for adjusting desired temperature
• One-piece design for an easy installation
• System in “OFF” for opening all circuits
• No vibration or levelling problems
• Available in vertical or horizontal models
• Connected with an internal and external sensor
• They control temperature with high accuracy,
sensitivity and veracity
• Installation adaptable to wall, built-in, built on board
or hidden places
• Application in: fan coil (direct expansion or chilled
water), central A/C units, etc.
FEATURES
(XXXX) = Model
(ET) = Product : Thermostat
(K) = Manufacturer :
K ET - (XXXX)
NOMENCLATURE

Rev. 00 07-14
THERMOSTATS AIR CONDITIONING
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Reference
Type Temperature
Range
Δ
Temperature
Temperature
Sensor
Thermostat Fan
Switch
Consumption
(With Load)
Connection Type of
Protection
System Fan Energy Voltage Energy Voltage
KET-230 ON - OFF
HIGH - MED - LOW +5°C a +30°C
±0,5°C a
±0,8°C
Unipolar Gas
Filled Bellows 1A 250VAC 6(2)A 250VAC 6VA Screw Terminals -
KET-231 HEAT - OFF - COOL
KET-444
- - +10°C a +32°C - - - 24VAC - - - - - KET-631V
KET-631H
KET-2000 ON - OFF
HIGH - MED - LOW
+10°C a +30°C
±0,5°C a
±0,8°C
Unipolar Gas
Filled Bellows
1A
250VAC
6(2)A 250VAC 6VA
Screw
Terminals
-
KET-2001 HEAT - OFF - COOL
KET-2500
OFF - COOL.
2 TUBES
+10°C a +30
(+50°F a +86°F) ±1°C (±2°F)
NTC Thermistor,
Negative
Temperature
Coefcient
(10 k)
220VAC
IP20
KET-2501
HEAT - OFF - COOL,
2 TUBES
KET-2502
HEAT - OFF - COOL,
4 TUBES
KET-2700 ON - OFF
+10°C a +30°C
±0,5°C a
±0,8°C
Unipolar Gas
Filled Bellows 250VAC
KET-2701 HEAT - OFF - COOL
KET-0070
- -
0°C a +50°C
(+32°F a +122°F)
-
Capillary and
unipolar sensor
bulb in copper
or stainless steel
20A 250VAC - - - IP54
KET-0071
0°C a +90°C
(+32°F a +194°F)
KET-0072
KET-0073
-35°C a +35°C
(-31°F a +95°F)
Reference
Casing
Material Color
KET-230
Fire-resistant Hard Plastic
White
KET-231
KET-444
KET-631V
KET-631H
KET-2000
KET-2001
KET-2500
Fire-resistant ABS Plastic with Standard UL94V-0KET-2501
KET-2502
KET-2700
Fire-resistant Hard Plastic
KET-2701
KET-0070
White or Black
KET-0071
KET-0072
KET-0073
KET-230
KET-2000
KET-444
KET-2700 KET-631
KET-0072

Rev. 00 07-14
THERMOSTATS AIR CONDITIONING
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90
139 38
CONNECTION DIAGRAMS AND DIMENSIONS
Reference Connection Diagram Dimensions (mm)
KET-230
KET-231
KET-444
Fan
Motor
Valve
L I ne
h
H
C
M
O
L
H
Cooling / Heating
Valve
FAN COOL
Cold Anticipator
YG R
SYS
ON
OFF
FAN
ON
AUTO
ON
AUTO
OFF
COOL
SYSTEM
FAN
114
72
29
50
10
50
10
60
15
60
15
70
21
70
21
80
27
80
27
90ªF
32ªC
90ªF
32ªC
Fan
Motor
Valve
Line
h
H M L

Rev. 00 07-14
THERMOSTATS AIR CONDITIONING
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CONNECTION DIAGRAMS AND DIMENSIONS
Reference Connection Diagram Dimensions (mm)
KET-2000
KET-2001
KET-2500
KET-2501
KET-2502
Fan
Motor
Fan
Motor
L I ne
L I ne
Valve
Valve
SW1
T
SW2
L M H
C O
N L
1
2
3
6
5
4
SW1
T
SW2
L M H
C O H
N L
132
87
39
132
87
42
L
N
HIGH
MED
LOW
COM
C
H
GO
Rx
M
Valve
Sensor Ext.
Cooling
Fan
HIGH
MED
LOW
N L
L
N
HIGH
MED
LOW
COM
C
H
GO
Rx
M
Valve
Sensor Ext.
Cooling / Heating
Fan
HIGH
MED
LOW
N L
L
N
HIGH
MED
LOW
COM
C
H
GO
Rx
M
Sensor Ext.
Cooling
Heating
Fan
Valve
Valve
HIGH
MED
LOW
N L
1
2
3
6
5
4

Rev. 00 07-14
THERMOSTATS AIR CONDITIONING
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CONNECTION DIAGRAMS AND DIMENSIONS
Reference Connection Diagram Dimensions (mm)
KET-2700
KET-2701
KET-0070
KET-0071
KET-0072
KET-0073
122
87
42
Fan
Motor
6
5
4
2
3Line
T
H M L
C O
N L
6
5
4
1
2
3
T
H M L
H O C
N L
3
2
1
L N 62+1
-
90.5+1
-
42
Valve
Valve
Fan
Motor
Line

THERMOSTATS AIR CONDITIONING
Notes:

TECHNICAL GUIDE