Honeywell ML7421A1032 - Installation; Location; Mounting

ML7421A,B ELECTRIC LINEAR VALVE ACTUATOR
63-2517-2
3
Location
Install the actuator in a location that allows enough
clearance for mounting accessories and for servicing. See
Fig. 1.
CAUTION
Do not install the actuator in a position below
horizontal to minimize the risk of damage to the
actuator in the event of condensation or a valve
gland leak.
Mounting
NOTE: Check for valve stem button adjustment dimension.
1. Attach the actuator to the valve collar and tighten the
set screws with a 5/32 in. (4mm) hex wrench.
IMPORTANT:
When tightening the set screws, first tighten the
right set screw. See Fig. 2.
Fig. 2. Attaching actuator to valve collar.
Fig. 1. Approximate dimensions of ML7421A,B Electric Linear Valve Actuator in in. (mm).
Valve Model Valve Size in in. Close-Off
Rating psi (kPa)
a
404 lbf (1800N)
V3350, V3351,
2-1/2 63 (434)
V3360, V3361,
3 45 (310)
V3450, V3451,
4
b
25 (172)
V3460, V3461
5
b
16 (110)
6
b
11 (76)
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and on the
product 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
Disconnect power before installation to prevent
electrical shock or equipment damage.
Table 2. Close-off Ratings in psi for ML7421A,B and
V3350,1; V3360,1; V3451,1; V3461,1 Valves.
a
Represents max. pressure difference between outlet and inlet.
b
For use only with ML7421B Actuators.