Honeywell 3 Nm-Serie Installationsanleitung Seite 2

3 NM SERIES SPRING RETURN DIRECT COUPLED ACTUATORS
Humidity Ratings:
 5% to 95% R.H., Non-Condensing
Auxiliary Switches (Two SPST):
 Fixed switches on 10 and 80 degrees
 125 VAC, 1A, res. load
Mounting: Self-centering shaft adapter (shaft cou-
pling):
 Round damper shafts: 3/8 to 5/8 in. (9 to 16 mm)
 Square damper shafts: 1/4 to 1/2 in. (6 to 13 mm)
Nominal tightening torque for self-centering shaft
adapter screw is 106 lb-in (12Nm).
Minimum Damper Shaft Length:
 3.25 in. (83 mm) recommended for self-centering
adapter.
Spring Return Timing (at rated load):
 < 25 seconds @ -22°F to 150°F (-30°C to 65°C)
< 60 seconds @ -40°F to -22°F (-40°C to -30°C)
Cable Specification:
 Power Cable: Plenum Rated, 3 ft (0.914 m) length from
end of access cover, 18 AWG
 Switch Cable: Appliance Rated, 3 ft (0.914 m) length
from end of access cover, 18 AWG
3-1/8 (78)
2-7/8 (72)
B
5-3/8
(137)
3-17/64 (83)
Fig. 1. Dimensional drawing of actuator in in. (mm).
See Table 2 for A and B dimensions.
31-00141M—02
A
6-1/2
(164)
7
(179)
M37461
Table 2. Shaft Adapters.
Type of Shaft Adapter
Self-centering adapter
3-1/8 (78)
2-7/8 (72)
1-1/2
(37)
5-3/8
(137)
3-17/64 (83)
Fig. 2. Dimensional drawing of actuator without conduit
2
A
3.54 in.
(90 mm) (39 mm)
3-1/2 (90)
6-1/2
(164)
in in. (mm).
B
1.54 in.
M37351