User Guide

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.
F-21286-3
www.tac.com
TAC
1354 Clifford Avenue
P.O. Box 2940
Loves Park, IL 61132-2940
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. Apply 20 psig (38 kPa) to the
actuator; the flow will be from ports A to AB.
MAINTENANCE
Regular maintenance of the total system is recommended for sustained optimum
performance. For information on air quality requirements consult EN-123, Air Quality
Requirements for Pneumatic HVAC Control Systems, F-22516.
FIELD REPAIR
Use part number PNV-102-1 when the replacement of the actuator diaphragm is necessary.
DIMENSIONAL DATA
See Figure-2 for dimensional data.
Figure-2 AL-161-4 Air Switching Valve Dimensions.
4-5/8
(117)
3-1/2
(89)
4-13/16
(122)
1-1/4
(32)
1-5/8
(41)
2-1/2
(64)
1-1/8
(29)
Mounting
Slots
9/32 (7) dia.
Mounting Slot
9/32 (7) dia.
2-13/16
(71)
2-1/4
(57)
1-11/16
(43)
7/8 (22)
3-5/8
(92)
3
(76)
1-1/4
(32)
Dimensions in inches. ( ) mm.
1
Allow 3" (76 mm) clearance above
assembly for actuator removal.
1
1-15/32
(37)
6-1/16
(154)