User Guide
Table Of Contents
- GENERAL INFORMATION
- Options
- Table-1 Model Chart.
- Figure-1 Mounting Dimensions.
- INSTALLATION
- Locating
- Mounting
- One Temperature Thermostats
- 1. The scale on the thermostat represents 30°F (17°C) or 60°F (33°C) span (see page 1) with the desired control point in the center. Each division is equal to 5°F (3°C) for 30°F (17°C) span units and 10°F (6°C) for 60°F (33°C) span units.
- 2. Observe the temperature of the bulb using a test thermometer. Turn the knob of the thermostat to the point on the scale which would correspond to the bulb temperature. Read the branch line pressure. It should be 8 psig ±1 psig (55 kPa ±7 kPa).
- 3. If the pressure is not 8 psig (55 kPa) use a .048" Bristol wrench (TOOL-82) in the calibrating screw and adjust the screw to ...
- 4. When the calibration has been completed, turn the knob to the desired setpoint and remove the gauge, reconnect the branch line and replace the cover.
- 1. The scale on the thermostat represents 30°F (17°C) or 60°F (33°C) span (see page 1) with the desired control point in the center. Each division is equal to 5°F (3°C) for 30°F (17°C) span units and 10°F (6°C) for 60°F (33°C) span units.
- Heating-Cooling Thermostats
- 1. Adjust the supply line pressure for the system to 25 psig (172 kPa).
- 2. Connect a pressure regulator into the supply main between the main and the thermostat at the thermostat location.
- 3. Adjust the regulator to 20 psig (138 kPa); at this supply pressure the thermostat is direct acting.
- 4. Set the dial knob on the thermostat to the bulb temperature setting and observe the branch line control air pressure. This pressure should be 8 psig ±1 psi (55 kPa ±7 kPa).
- 5. If not, adjust the direct acting screw to obtain 8 psig (55 kPa) branch line control pressure using a .048" Bristol wrench (Tool-82).
- 6. Adjust the regulator in the main line to 15 psig (103 kPa). At this supply pressure the temperature is reverse acting.
- 7. Observe the branch line control air pressure. If this pressure is not 8 psig (55 kPa), use a .048" Bristol wrench (TOOL-82) and adjust the reverse acting calibrating screw to obtain an 8 psig (55 kPa) branch line control pressure.
- 8. Recheck calibration by switching the supply pressure between 15 and 20 psig (103 and 138 kPa) several times and observe the control pressure. If it varies from the desired pressure, repeat the calibration procedures.
- 9. Calibration is now complete. Turn the adjusting knob to the desired setpoint. Remove the test gauge and regulator, reconnect the main and branch lines and replace the cover.
- 1. Adjust the supply line pressure for the system to 25 psig (172 kPa).
- Heating-Cooling Low Limit TK-4212-201
- Figure-6
2 © Copyright 2009 Schneider Electric All Rights Reserved. F-12585-8
Table-1 Model Chart.
DIMENSIONS
Figure-1 Mounting Dimensions.
Part
Number
Description and
Action
a
a
Direct Acting (DA) - Increase output pressure on temp. rise.
Reverse Acting (RA) - Decrease output pressure on temp. rise.
Max. Safe
Bulb Temp.
°F (°C)
Bulb Style
Dimensions in
inches (mm)
Control Dial
Range
°F (°C)
Throttling Range
Supply Air
Pressure psig
(kPa)
TK-2001
Heating
DA
b
b
Field changeable to reverse acting.
140 (60)
Straight
7/32 x 14 (6 x 356)
Dial Marked
Cooler-Warmer
60-90
(15-32)
Adjustable 2-10°F
(1-6
°C)/10 psi (69 kPa)
Factory Set
4°F (2°C)/
10 psi (69 kPa)
15 (103)TK-3001
Coiled
1 x 5 (25 x 127)
TK-4001
Averaging
1/8 x 48 (3 x 1.2 m)
TK-2201
Heating-Cooling
20 (138) DA
15 (103) RA
Straight
7/32 x 14 (6 x 356)
15 (103) RA
a
Cooling
20 (138) DA
a
Heating
TK-3201
Coiled
1 x 5 (25 x 127)
TK-2012
Heating
DA
b
230 (110)
Straight
3/16 x 11-1/4 (5 x
286)
Dial Marked
Cooler-Warmer
30-90 (-1 to 32)
Adjustable 5-25°F
(3-14
°C)/
10 psi (69 kPa) Factory
Set
10°F (6°C)/
10 psi (69 kPa)
15 (103)
TK-4012
Averaging
3/32 x 54 (2 x 1.4 m)
TK-4212
Heating-Cooling
20 (138) DA
15 (103) RA
Averaging
3/32 x 54 (2 x 1.4 m)
15 (103) RA
a
Cooling
20 (138) DA
a
Heating
TK-4212-201
Heating-Cooling
Low Limit
c
20 (138) DA Full
Output 15 (103)
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.
Averaging
3/32 x 54 (2 x 1.4 m)
15 (103
Full Output
20 (138) DA
a
Heating