User Guide

ManualsBrandsBarber Colman ManualsHVAC Replacement Parts3-Way Air Switching Valve (8-13 PSI)

TAC

1354 Clifford Avenue

P. O. Box 2940

Loves Park, IL 61132-2940

www.tac.com

Application

The AL-161-4 is a three-way air switching valve used

for central supply air changeover in dual pressures

systems.

Features

• Die cast aluminum actuator with replaceable

neoprene diaphragm

Applicable Literature

• TAC Cross-Reference Guide, F-23638

• TAC Reference Manual, F-21683

• TAC Application Manual, F-21335

• TAC Valve Products Catalog, F-27384

• EN-123 Air Quality Requirements for Pneumatic

HVAC Control Systems, F-22516

Three-way Air Switching Valve

General Instructions

AL-161-4

Summary of content (4 pages)

PAGE 1
TAC 1354 Clifford Avenue P. O. Box 2940 Loves Park, IL 61132-2940 www.tac.com AL-161-4 Three-way Air Switching Valve General Instructions Application The AL-161-4 is a three-way air switching valve used for central supply air changeover in dual pressures systems.
PAGE 2
SPECIFICATIONS Valve Body Rating: 250 psig (1724 kPa). Actuator Maximum Air Pressure: 30 psig (207 kPa). Spring Range 8-13 psig (55-90 kPa). Flow Capacity: 25,920 scim (7,080 ml/s) at 15 psig (103 kPa) supply with 1 psig (6.9 kPa) drop. Connections: Actuator, 1/8" FNPT. Valve Body, 1/2" FNPT. Port Code and Flow Pattern: See Table-1. Ambient Temperature Limits: Shipping & Storage, -40 to 220 ° F (-40 to 104° C). Operating, 35 to 140° F (2 to 60° C). Humidity: 5 to 95% RH, non-condensing.
PAGE 3
TYPICAL APPLICATIONS Electric Time Switch L1 L2 1 AL-1XX Solenoid Air Valve (E/P Relay) M N.C. C N.O. 15 psi (103 kPa) 1 Contacts Open: 20 psig to Thermostats Contacts Closed: 15 psig to Thermostats AL-161-4 A Pressure Gauge 0-30 psig AB B Supply Main to Thermostats 20 psi (138 kPa) Figure-1 Typical Piping Diagram. INSTALLATION Inspection Inspect the package for damage. If damaged, notify the appropriate carrier immediately.
PAGE 4
Mounting The AL-161-4 is not position sensitive. 1. Mount the AL-161-4 to the wall or the subpanel of a control cabinet at any angle, using the attached mounting bracket. 2. Use three (3) 1/4" (6 mm) mounting screws (not provided) to secure the AL-161-4 to the mounting surface. 3. See Figure-2 for mounting dimensions. Piping Refer to the typical piping application in Figure-1. CHECKOUT With no air to the actuator the flow will be from ports B to AB.