Installation - Honeywell ML7421A1032 Product Data

Fig. 1. Approximate dimensions of ML7421A,B Electric Linear Valve Actuator in in. (mm).
Valve Model Valve Size in in.
2-1/2
V3350, V3351,
V3360, V3361,
V3450, V3451,
V3460, V3461
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.

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.
Close-Off
Rating psi (kPa) a
404 lbf (1800N)
63 (434)
3 45 (310)
4 b
25 (172)
5 b
16 (110)
6 b
11 (76)
ML7421A,B ELECTRIC LINEAR VALVE ACTUATOR
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.
3
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