User Guide

ManualsBrandsBarber Colman ManualsHVAC Replacement Parts2-Pipe Reverse Acting Thermostat (55-85F)

Application

The 2212-41x Series Pneumatic Room Thermostats

are designed for proportional control of pneumatic

devices and actuators in environmental control

systems. These two-pipe thermostats incorporate a

highly sensitive bimetal thermostatic element and a

pilot operated relay with pneumatic feedback for

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), except as noted

in model chart (Table-1).

Throttling Range: 2 to 12 °F, adjustable.

Supply Air Pressure: 20 psig.

Maximum Air Pressure: 30 psig.

Main Air Consumption: 15 scim.

Calibration Point: 9 psig branch line pressure when

ambient equals setpoint (factory-set).

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.

2212-1xx Series

2212-30x Series

Pneumatic Room Thermostats

General Instructions

Full Dial Cover Shown

(Covers must be ordered

separately except as noted.)

Summary of content (8 pages)

PAGE 1
2212-1xx Series 2212-30x Series Pneumatic Room Thermostats General Instructions Application The 2212-41x Series Pneumatic Room Thermostats are designed for proportional control of pneumatic devices and actuators in environmental control systems. These two-pipe thermostats incorporate a highly sensitive bimetal thermostatic element and a pilot operated relay with pneumatic feedback for accuracy and stability over the entire operating range.
PAGE 2
ORDERING DATA Table-2 Model Chart — Thermostat Replacement Kits. Table-1 Model Chart — Thermostats.
PAGE 3
Table-4 Covers.
PAGE 4
Mounting Polyethylene Tubing Air Supply 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 Couplings for Plastic Tubing 20-714 (included with thermostat) Wall Plate (included with thermostat) 20-693 6 in. Tube Assembly with Eyelets (included with thermostat) Polyethylene Tubing Air Supply Branch Main Branch 20-693 6 in.
PAGE 5
Pre-plumbed Electrical Box (optional) Air Supply Tubing Branch Main Wall Plate 2 3/16 in. Tygothane Tubing with Eyelets (included with thermostat) Remove Locator and Adaptor Polyethylene Tubing Air Supply Branch Block 20-714 Wall Plate (included with thermostat) Wall Main Thermostat Thermostat 1 ¡F 12 6 2 ¡F 12 6 2 5 2 ¡C 5 2 20-693 6 in. Tube Assembly with Eyelets (included with thermostat) 3/16 in. x 1/4 in.
PAGE 6
Optional Mounting Eliminate the pipehead fitting by using the 22-022 thermostat conversion kit and the included instructions, plus the following: 1/4" Plastic Air Lines: Install the 1/4" barbed couplings into the air lines. Connect the tube assembly to the 3/16" end of these couplings. Internal Setpoint Indicator 1/4" Copper Air Lines: Solder the barbed couplings into the copper lines. The tube assembly can then be connected to the 3/16" end of the couplings.
PAGE 8
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-24575-3 TAC 1354 Clifford Avenue P.O. Box 2940 Loves Park, IL 61132-2940 www.tac.