User Guide

ManualsBrandsBarber Colman ManualsHVAC Replacement PartsDirect Acting Pneumatic Temperature Control w/ 3' Capillary

Table Of Contents

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.

Options

None

ACCESSORIES

AT-208 Duct mounting kit

Tool-95 Pneumatic calibration tool kit

TK-2001, TK-2012, TK-2201,

TK-3001, TK-3201, TK-4001,

TK-4012, TK-4212 TK-4212-201

Pneumatic Bulb Thermostats

General Instructions

Summary of content (6 pages)

PAGE 1
TK-2001, TK-2012, TK-2201, TK-3001, TK-3201, TK-4001, TK-4012, TK-4212 TK-4212-201 Pneumatic Bulb Thermostats General Instructions 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.
PAGE 2
Table-1 Model Chart. Part Number Max. Safe Description and Bulb Temp.
PAGE 3
INSTALLATION Locating The thermostat can be mounted in any position. However, it is most common to mount the thermostat with the setpoint adjusting shaft on top. The adjusting mechanism is in the thermostat on the side opposite from the setpoint knob shaft. This area should be readily accessible so that the thermostat can be serviced easily. Locate the bulb in the return air intake in a position where it will sense representative air temperatures. CONVERSION OF DIRECT ACTING THERMOSTAT TO REVERSE ACTING 1.
PAGE 4
Calibrate the thermostat as follows (See Figure 5): Disconnect the branch line at the thermostat and attach a test gauge to the fitting (B). Push the tubing on as far as it will go, approximately 1/4" (6 mm). The tubing for this test gauge should be approximately 6" (150 mm) long to permit bringing the gauge out from the test point to a place where it can be easily read. The supply pressure to the thermostat should be 15 psig (103 kPa). Heating-Cooling Thermostats 1.
PAGE 5
MAINTENANCE FIELD REPAIR This is a quality product. Regular maintenance of the total system is recommended to assure sustained optimum performance. Repair is not recommended except for replacement of restrictor assembly. Use AT-529 restrictor kit (see Figure 6) if restrictor replacement is required. Otherwise, replace thermostats if system is not operating correctly and the cause is traced to the thermostat. Figure-6 Figure-8 Bulb Mounting Hole Arrangement for Drilling Ductwork.
PAGE 6
On October 1st, 2009, TAC became the Buildings business of its parent company Schneider Electric. This document reflects the visual identity of Schneider Electric, however there remains references to TAC as a corporate brand in the body copy. As each document is updated, the body copy will be changed to reflect appropriate corporate brand changes. Copyright 2009, Schneider Electric All brand names, trademarks and registered trademarks are the property of their respective owners.