User Guide

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

TAC

1354 Clifford Avenue

P. O. Box 2940

Loves Park, IL 61132-2940

www.tac.com

Application

The 2211 Series Pneumatic Room Thermostat is

designed for proportional control of pneumatic devices

and actuators in environmental control systems. These

one-pipe thermostats are force-balanced and utilize an

external restrictor in the supply line. Their design

incorporates a highly sensitive bimetal thermostatic

element and a ball valve for pneumatic feedback, which

ensures accuracy and stability over the entire

operating range.

These thermostats have a serrated thumb wheel for

setpoint adjustment. Models are also available with

preassembled internal dial stops. Thermostat covers

are available in various styles to meet particular

requirements. Cover options include models with a

setpoint scale and a thermometer, a setpoint scale

only, a thermometer only, or blank. An external setpoint

adjustment cover is available on some models, or can

be field-installed on covers where desired.

Features

• Factory-calibrated, stainless steel ball-in-seat

provides pneumatic feedback for stable, linear

operation.

• Easy-to-use throttling range adjustment and

recalibration.

• Adjustable (patented) bimetal shows actual

throttling range in both °F and °C. Adjustable 2 to

12 °F (1 to 6.7 °C)

• Leak-proof, self-closing branch gauge tap.

SPECIFICATIONS

Action: Proportional.

Setpoint Range: 55 to 85 °F (13 to 29 °C).

Throttling Range: 2 to 12 °F adjustable.

Supply Air Pressure: 20 psig.

Maximum Air Pressure: 30 psig.

Main Air Consumption: 30 scim.

Calibration Point: 9 psig branch line pressure when

ambient equals setpoint.

Setpoint Adjustment: Serrated thumbwheel.

Construction:

Mechanical Components, Die cast aluminum, stainless

steel, and glass-filled nylon.

Diaphragm, Fabric-reinforced Neoprene.

Air Lines, Connect to thermostat nipples with

spring-reinforced plastic tubes.

Branch Connections, Equipped with internal fiters.

Environment

Humidity: 5 to 95% relative humidity, non-condensing.

Locations: NEMA Type 1.

2211 Series

One-Pipe Pneumatic Room Thermostats

General Instructions

Full Dial Cover Shown

(Covers must be ordered

separately except as noted.)

Summary of content (8 pages)

PAGE 1
2211 Series TAC 1354 Clifford Avenue P. O. Box 2940 Loves Park, IL 61132-2940 www.tac.com One-Pipe Pneumatic Room Thermostats General Instructions Application The 2211 Series Pneumatic Room Thermostat is designed for proportional control of pneumatic devices and actuators in environmental control systems. These one-pipe thermostats are force-balanced and utilize an external restrictor in the supply line.
PAGE 2
ORDERING DATA Table-2 Model Chart — Thermostat Replacement Kits. Table-1 Model Chart — Thermostats. Wholesale Number Replaces Model 2211-012 T12-301 Action Description Direct 2211-112a T12-3011 2211-013 T13-301 2211-113a T13-3011 a Includes (1) 1/4" x 3/16" barbed coupling, 20-693 tubing, 20-714 wall plate, 20-711 mounting plate, and Reverse mounting screws. These models have factory-installed 20-712 dial stop kits.
PAGE 3
Table-4 Covers.
PAGE 4
Mounting Polyethylene Tubing Air Supply Branch Standard Mounting Options 1. Mount the thermostat according to the applicable figure (Figure-2 through Figure-9). See Figure-11 for mounting dimensions. 21-611 1/4 x 3/16 in. Barbed Coupling for Plastic Tubing (included with thermostat) Polyethylene Tubing Air Supply 20-714 Wall Plate (included with thermostat) Branch 2 Thermostat Wall ¡F 12 6 2 20-693 6 in. Tube Assembly with Eyelets (included with thermostat) ¡F 12 6 Bracket 20-693 6 in.
PAGE 5
Wall Plate 2 3/16 in. Tygothane Tubing with Eyelets (included with thermostat) Pre-plumbed Electrical Box (optional) Air Supply Tubing 21-611 1/4 x 3/16 in. Barbed Reducer for Plastic Tubing (included with thermostat) Wall Branch 20-714 Wall Plate (included with thermostat) Wall 20-693 6 in. Tube Assembly with Eyelets (included with thermostat) Thermostat 1 ¡F 12 6 2 ¡C 5 2 3/16 in. x 1/4 in.
PAGE 6
20-689 Mounting Fitting with 8 ft. Copper Lines (order separately) 20-716 Insulating Back Plate (order separately) Branch 5. Reinstall the thermostat cover and set the thermostat to the desired setpoint. Cutouts (partially formed on underside) 20-693 6 in. Tube Assembly with Eyelets (included with thermostat) ¡F 12 6 2 Polyethylene Tubing Air Supply 4.
PAGE 7
MAINTENANCE DIMENSIONAL DATA The thermostat requires no maintenance. Regular maintenance of the total system is recommended to assure sustained, optimum performance. FIELD REPAIR 1/8 (.318) None. Replace an inoperative thermostat with a functional unit. M B 2-1/32 (5.16) 1-1/4 (3.18) 1-3/8 (3.5) 1-3/8 (3.5) 2-1/32 (5.16) Dimensions are in inches (mm). Figure-11 Mounting Dimensions. F-24574-2 © Copyright 2006 TAC All Rights Reserved.
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-24574-2 www.tac.