User Guide

ManualsBrandsBarber Colman ManualsHVAC Replacement PartsDirect Acting One Pipe Thermostat

TAC

1354 Clifford Avenue

P. O. Box 2940

Loves Park, IL 61132-2940

www.tac.com

GENERAL INFORMATION

The pneumatic thermostats are used for proportional control

of pneumatically actuated valves, damper actuators, and

similar devices in heating ventilating and air-conditioning

systems.

The TK-5001 is a direct-acting thermostat, normally used in

heating applications. The TK-5010 is a reverse-acting

thermostat and is normally used in cooling applications.

Supply Air Pressure: 30 psig maximum; 15 psig nominal for

single acting thermostats (TK-5001 and TK-5101).

Throttling Range: Fixed-6F°, for a 10 psig branch line

pressure change, nominally 3 to 13 psig.

Air Capacity: For sizing compressors; average air

consumption is .016 standard cubic feet per minute (scfm) for

15 psig main, .024 scfm for 20 psig main. The maximum air

requirement for sizing air mains is 36 standard cubic inch per

minute (scim) for 15 psig main, 50 scim for 20 psig main.

Air Connection: One plastic tube reinforced with a coil

spring to simplify installation. Fittings are ordered separately.

A wall box and mortar joint fitting are offered. A remote in-line

restrictor is required. (see pages three and four for typical

piping.)

Locating: Locate the thermostat where it will be exposed to

unrestricted natural air circulation representative of the

average conditions of the controlled space. Do not locate

near sources on non-representative conditions (such as

lamps, motors, sunlight, radiators and concealed pipes or

ducts within the walls), which might affect the control point.

INSTALLATION

The pneumatic room thermostat fittings may be installed

either flush or surface mounted. Two types of fittings are

available: AT-506 or AT-516 (wall box fitting) for surface

mounting on all wall surfaces and flush mounting on

plastered or stud walls and the AT-519 for flush mounting on

masonry walls. The wall box fitting AT-506 or AT-516 is

installed in the wall or on the wall, attaching it firmly through

the screw holes in the back of the die cast box.

Wall Box Fitting: For installation on a wall box fitting, refer to

Figure 1 or Figure 2.

1. Remove and discard the cardboard cover plate on the wall

box (The cardboard cover protects the fitting while the wall

is being plastered).

2. Place the mounting plate against the wall. Install the two

flathead screws supplied, to hold the mounting plate to

the wall box. Before tightening the screws, align the

mounting plate so that it is square with the wall.

3. If the plastic tubing, attached to the thermostat, is longer

than necessary for easy coiling in the wall box, the tubing

can be cut to length. Use a side cutting or diagonal pliers,

and cut the tubing at a 45

° angle, for ease in inserting the

tubing into the “O” ring seal. Be sure that the coil spring

is left in the tubing (cut it off with the tubing).

4. Remove and discard the short plug or jumper tube which

is inserted in the connector head of the wall box, by

pulling it straight out from the hole.

5. Place the fibre board insulator over the tubing on the

back of the thermostat.

6. AT-516 - Insert the tube (white) in the center hole in the

connector.

Do not use any lubricant on the plastic tubing.

AT-506 - Using the AT-506 requires the

AT-532-111-1-01 restrictor to be located under the

thermostat cover. See Figure 2.

Insert the main plastic tubing (black) 1/4-inch or slightly

further into the hole on the left in the connector head.

Insert the branch line tubing (white) in the right hand hole

in the connector.

Do not use any lubricant on the plastic

tubing.

7. Fasten the thermostat to the mounting plate with the

three Allen head mounting screws provided. Tighten the

screws evenly.

8. Replace cover.

AT-517 Mortar Joint Fitting: Where the thermostat is to be

mounted on a mortar joint fitting, the following procedure is

suggested. Refer to Figure 3.

TK-5001, 5101

Pneumatic Room Thermostats

General Instructions

Summary of content (8 pages)

PAGE 1
TK-5001, 5101 TAC 1354 Clifford Avenue P. O. Box 2940 Loves Park, IL 61132-2940 www.tac.com Pneumatic Room Thermostats General Instructions GENERAL INFORMATION The pneumatic thermostats are used for proportional control of pneumatically actuated valves, damper actuators, and similar devices in heating ventilating and air-conditioning systems. The TK-5001 is a direct-acting thermostat, normally used in heating applications.
PAGE 2
4. Cut the plastic tube on the back of the thermostat as follows: Measure 2-7/8-inch from the back of the thermostat, and using a side cutting or diagonal pliers, cut the tubing at a 45° angle to make the tubing slide into the connector head more easily. Remove the coil spring from the tubing and cut-off and discard 7/8-inch of the coil spring. Replace the remaining coil spring in the tubing. 5. Insert the short length of copper tubing, supplied with the fitting, into the plastic tubing.
PAGE 3
CALIBRATION After the installation has been completed the thermostat should be checked for calibration. As a nominal calibration, the branch line control pressure should be 8 psig when the set point is equal to the room temperature as indicated on the thermostat thermometer. On some applications, a value other than 8 psig will be required to get the desired control results. In this case, change the 8 psig designation used in the calibration procedure.
PAGE 4
Figure-8 Figure-9 Figure-11 Figure-12 Figure-10 Calibration and Installation with Restriction Installed on Thermostat Order separately one APNT 11-011 tube and one APNT 93-30 spring. 1. Remove the thermostat cover by loosening the cover screw and raising the bottom of the cover, off the base. Lift up the cover after it has cleared the mechanism. 2. Remove white 5/32-inch plastic tube from nozzle block (Figure 7) and base. Figure-13 9.
PAGE 5
16. With a .048-inch six spline wrench, adjust the calibration screw (see Figure 7). Turn the screw clockwise if the controlled pressure is above 8 psig, and counterclockwise if it is below 8 psig. Adjust the screw until the controlled pressure is mid value of the actuator spring (i.e., 5-10 spring = 7-1/2 psig) ± 1 psig. Note: The hex nuts on the calibration screws are for tension only. They should not be loosened to make any adjustments. 17. Remove the test gauge. 18.
PAGE 8
Copyright 2006, TAC All brand names, trademarks and registered trademarks are the property of their respective owners. Information contained within this document is subject to change without notice. TAC 1354 Clifford Avenue P.O. Box 2940 Loves Park, IL 61132-2940 F-13531-3 www.tac.