Honeywell ml7421 Benutzerhandbuch

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ML6421, ML7421 NON-SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS
3
63-2515—4
Fig. 1. Approximate dimensions of ML6421, ML7421 Electric Linear Valve Actuators in in. (mm).
INSTALLATION
When Installing this Product…
1. Read instructions carefully. Failure to follow them could 
damage the product or cause a hazardous condition.
2. Check ratings and description given in the specifications 
to make sure the product is suitable for your application.
3. Installer must be a trained, experienced service 
technician.
4. After installation is complete, check out product 
operation as provided in these instructions.
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment 
circuitry.
Disconnect power supply before installation.
Location
Install the actuator in a location that allows enough clearance 
for mounting accessories and for servicing.
CAUTION
Equipment Damage Hazard.
Can damage actuator due to condensation or a 
valve gland leak.
Install the actuator in a position above horizontal.
2-1/2 
(64)
2-1/2 
(64)
7 (178 ) X 7 (178)
7 (178 ) X 7 (178)
5-5/8
(142)
KNOCKOUTS
(2) 
7/8 (22)
9-3/8
(239)
10-3/8
(264)
14-1/4
(360)
MINIMUM
CLEARANCE
8
(204)
11-7/8
(301)
12-3/4
(326)
16-7/8
(430)
MINIMUM
CLEARANCE
ML6421A,ML7421A
ML6421B, ML7421B
M17430
YOKE DIAMETER 1-3/8 (35)
KNOCKOUTS
(2) 
7/8 (22)
YOKE DIAMETER 1-7/8 (48)