User Guide

ManualsBrandsBarber Colman ManualsHVAC Replacement PartsTwo Pipe Reverse Acting Thermostat (55-85F)

DEVICE INFORMATION

Identification

Thermostats of this family may be easily identified by

referring to the part number located on the carton and

on the back and side of the device. Stamped on the

back of the device is the date of manufacture (four

digits, the first two representing the week of the year

and the last two representing the year).

These thermostats are used for proportional control of

pneumatically activated valves, dampers and similar

devices in heating, ventilating and air conditioning

systems. See Performance table.

Pre-Installation

The thermostats are shipped with mounting screws

and three 3/4-inch long copper tubes. Wall fittings must

be ordered separately.

Before installation, make a visual inspection of the

thermostat carton for obvious signs of damage.

Air connections: Two plastic tubes reinforced with a

coil spring are coded M & B. The M (Black) designates

the supply main and the B (White) designates the

controlled branch line.

Model TK-1601 has three plastic tubes. The additional

tube A (White) designates the auxiliary (two-position)

branch line.

INSTALLATION

Requirements

Locate the thermostat where it will be exposed to

unrestricted circulation of air which represents the

average temperature of the controlled space. Do not

locate the thermostat near sources of heat or cold,

such as lamps, motors, sunlight, or concealed ducts or

pipes. Maximum safe ambient temperature is 150

°F.

Figure-1 Mounting Thermostat to AT-507 Mortar Joint

Fitting.

The AT-507 thermostat fitting is available for either

flush or surface mounting. See Figures 1 and 3. The

AT-506 and AT-508 (wall box fittings) are for surface

mounting on all wall surfaces and flush mounting in

plastered or stud walls The AT-507 is for flush

mounting in masonry walls.

Note:

No fitting is available for use for flush mounting in

masonry walls when using the TK-1601, an electrical box is

used for this application (Figure-2).

TK-1001, 1101, 1201, 1301,

1601

Pneumatic Room Thermostats

General Instructions

Summary of content (8 pages)

PAGE 1
TK-1001, 1101, 1201, 1301, 1601 Pneumatic Room Thermostats General Instructions DEVICE INFORMATION Identification Thermostats of this family may be easily identified by referring to the part number located on the carton and on the back and side of the device. Stamped on the back of the device is the date of manufacture (four digits, the first two representing the week of the year and the last two representing the year).
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Figure-2 Mounting Thermostat to Electrical Box. Figure-3 Mounting Thermostat to AT-506 or AT-508 Wall Box Fitting. PERFORMANCE Table-1 Performance Table. Part Number Description and Action * TK-1001 Heating DA TK-1101 RA Cooling TK-1201 Heating-Cooling DA - 20 psig RA - 15 psig TK-1301 TK-1601 Dial Range (F) Factory Setpoint Setting (F) Throttling Range Supply Air Pressure (psig) 15 or 20 55.
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Figure-4 Figure-5 Procedure To mount a thermostat on an AT-506 and AT-508 wall box fitting, refer to Figure-3: 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. Fasten the mounting plate to the wall box with the two flat head screws provided. Make sure it is square with the wall before tightening the screws. 3. If the thermostat tubing is too long for easy coiling in the wall box, it can be cut to length.
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thermostat is direct acting, the output pressure should rise. If the thermostat is reverse acting, the output pressure will drop. Note: The mount of the rise or drop in the output pressure may vary depending on the ambient temperature in the test area. If output is always 0 psig, the restriction may be plugged. If output is always equal to supply or unable to decrease below 3 psig, the nozzle may be plugged. 2.
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Adjustments Throttling Range: The throttling range is set at 4F° per 10 psi control pressure change. It should be set at the lowest value which will allow the thermostat to control the system without cycling under normal load conditions. The most satisfactory setting will vary with the type of system being controlled. If the throttling range of the thermostat as shipped is not satisfactory, proceed as follows: 1. Measure temperature at sensing element. This should be stable temperature. 2.
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MAINTENANCE The pneumatic thermostat requires no routine maintenance. REPAIR Field repair of pneumatic thermostats is not recommended. However, if the thermostat output pressure is 0 and it cannot be corrected by calibration, the restriction should be checked. Hold the restriction plate up to the light and check the .0075 hole. If the hole is blocked, the restriction plate must be replaced. the filter should be replaced at the same time. If the hole is not blocked, then the thermostat should be replaced.
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Copyright 2008, 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. F-15571-4 TAC 1354 Clifford Avenue P.O. Box 2940 Loves Park, IL 61132-2940 www.tac.