Schneider Electric TK-2001, TK-2012, TK-2201, TK-3001, TK-3201 Data Sheet
...
For proportional temperature control of pneumatic valves and
actuators to maintain discharge temperature of reheat
systems and sampling chamber or return air temperature of
terminal units and as a proportional low limit thermostat.
GENERAL INFORMATION
Proportional control type of pneumatic instrument, using
balanced lever system actuated by a liquid-filled thermal
copper element with a 3’ (914 mm) capillary.
Maximum Safe Air Pressure: 30 psig (207 kPa).
Maximum Sale Case Temperature: 140°F (60°C).
Mounting: Directly by means of top mounting holes or with
a right angle mounting bracket included with thermostat.
Air Connections: Post with barb for 1/4" O.D. plastic tubing.
Air Consumption for Sizing Air Compressor: .016 scfm
(8 ml/s) @ 15 psig (103 kPa), .024 scfm (11 ml/s) @ 20 psig
(138 kPa).
Air Capacity for Sizing Air Mains: 36 scim (10 ml/s) @ 15
psig (103 kPa), 50 scim (14 ml/s) @ 20 psig (138 kPa).
Dimensions: 4-5/8" (117 mm) high x 2-1/8" (54 mm) wide x
1-5/8" (41 mm) deep.
TK-2001, TK-2012, TK-2201,
TK-3001, TK-3201, TK-4001,
TK-4012, TK-4212 TK-4212-201
Pneumatic Bulb Thermostats
General Instructions
Options
None
ACCESSORIES
AT-208 Duct mounting kit
Tool-95 Pneumatic calibration tool kit
Printed in U.S.A. 12/09 © Copyright 2009 Schneider Electric All Rights Reserved. F-12585-8
Table-1 Model Chart.
Bulb Style
Dimensions in
inches (mm)
Straight
7/32 x 14 (6 x 356)
Coiled
1 x 5 (25 x 127)
Averaging
1/8 x 48 (3 x 1.2 m)
Straight
7/32 x 14 (6 x 356)
Coiled
1 x 5 (25 x 127)
Straight
3/16 x 11-1/4 (5 x
286)
Averaging
3/32 x 54 (2 x 1.4 m)
Averaging
3/32 x 54 (2 x 1.4 m)
Averaging
3/32 x 54 (2 x 1.4 m)
Part
Number
Description and
Action
a
Max. Safe
Bulb Temp.
°F (°C)
TK-2001
Heating
b
DA
TK-4001
TK-2201
Heating-Cooling
140 (60)
20 (138) DA
TK-3201
TK-2012
15 (103) RA
Heating
b
DA
TK-4012
TK-4212
Heating-Cooling
20 (138) DA
230 (110)
15 (103) RA
TK-4212-201
Heating-Cooling
Low Limit
20 (138) DA Full
c
Output 15 (103)
a
Direct Acting (DA) - Increase output pressure on temp. rise.
Reverse Acting (RA) - Decrease output pressure on temp. rise.
b
Field changeable to reverse acting.
c
AT 20 psi (138 kPa) unit can bleed down a branch line from a controlling thermostat.
At 15 psi (103 kPa) unit is inoperative, i.e. passes controlling thermostat signal.
Control Dial
Range
°F (°C)
Dial Marked
Cooler-Warmer
60-90
(15-32)
Dial Marked
Cooler-Warmer
30-90 (-1 to 32)
Throttling Range
Adjustable 2-10°F
(1-6
°C)/10 psi (69 kPa)
Factory Set
4°F (2°C)/
10 psi (69 kPa)
Adjustable 5-25°F
(3-14
°C)/
10 psi (69 kPa) Factory
Set
10°F (6°C)/
10 psi (69 kPa)
Supply Air
Pressure psig
(kPa)
15 (103)TK-3001
15 (103) RA
Cooling
20 (138) DA
a
a
Heating
15 (103)
15 (103) RA
Cooling
20 (138) DA
a
a
Heating
15 (103
Full Output
20 (138) DA
a
Heating
DIMENSIONS
Figure-1 Mounting Dimensions.
2 © Copyright 2009 Schneider Electric All Rights Reserved. F-12585-8
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