TAC Pneumatic Products Catalog

N100-25xx Series
Pneumatic Limit Controls
These controls open an integral pneumatic switch
when sensed temperature reaches the control
setpoint.
Features:
• Reduces installation cost when temperature sensing point
is located a considerable distance from the motor starter of
an air-handling unit supply fan.
• N100-2509 and N100-2513 respond when any one foot of
the 20 foot sensing element drops below setpoint.
• If used with DPDT P/E Switch, one circuit of P/E can (for
example) open to de-energize a fan motor starter, while the
other circuit closes to initiate an alarm.
Model Chart
Model No. Description
N100-2509a 15 to 55�F (-9 to 13�C). Pneumatic low limit, manual reset. Differential 5F degrees (2.7C degrees).
N100-2513 a Same as N100-2509, but automatic reset. Differential 5F degrees (2.78C degrees).
a All devices require N100-0010, N4-32, or N100-2501 restrictor.
Specifications
Dimensions 3-63/64 H x 4-3/8 W x 2-9/32 D in. (101 x 112 x 58 mm). Note: dimensions do not include coil.
Restrictor Requires one N100-0010, N-32, or N100-2501.
Typical Applications
Accessories
N100-2509
15/55 F
set: 35 F
Restrictor
Figure 1 Typical Application.
Model No. Description
N4-32 Restrictor, 1/4 in. O.D. compression.
N100-0010 Restrictor tee for plastic tubing.
N100-2501 Restrictor, inline.
M
N100-2513
64 © Copyright 2006 TAC. All Rights Reserved. F-27383-1
C
NO
DEG. FAHR
C C
UT
UT
I O
N
UT
55
50
45
40
35
30
25
20
15
Wire in series with the unit starter.
DEG. FAHR
PUSH
TO
RESET
N100-25xx
Series