MEP-3001/3006
1
Installation and Operation Guide
Installation and Operation Guide
Thermic 2-Position or Time-Proportional Actuators
MEP-3001 (for VEP-12/22/34) and MEP-3006 (for VEP-11/21/37)
Mounting 1
Wiring 1
Operation 2
Maintenance 2
Select Specifications 2
More Information 2
CAUTION
If mounting the actuator to a valve already in-line,
close the shut-off valves in the piping (upstream
first, then downstream) or switch off the pump to
allow the differential pressure in the valve to drop.
CAUTION
To prevent condensation from dripping onto the
actuator housing, mount the valve with the actuator
in the upright position or, at most, at a 45° angle.
1a. On a new valve body, remove the protective cap
covering the bonnet. (See Illustration 2.)
1b. To remove an existing (same model) actuator,
disconnect the wiring, wait at least six minutes
until the actuator has completely cooled, turn
the actuator bayonet ring (coupling piece)
counterclockwise until it is loose, and pull off the
actuator. Also unscrew the old black bayonet nut
if it stays on.
2a. If the new black bayonet nut is loose from the
new actuator, screw it on top of the valve body
and firmly hand-tighten (only). (See Illustration
3.) Then place the actuator over it and turn the
actuator bayonet ring clockwise until it is hand-
tight and locks into place.
2b. If the new black bayonet nut is firmly attached
inside the actuator, screw the entire actuator on
top of the valve body until it is hand-tight and
locks into place.
Mounting
1
UP
Wiring
Connect the brown wire to the phase side of 24 VAC
and the blue wire to neutral. (See Illustration 1.)
For
two-position control
, a simple switch or relay
can be used. For
time-proportional (pulse-width
modulation) control
, use a KMC REE-5017 or
REE-4106/5106 relay module. (See the relevant relay
module documentation for more information.)
NOTE: All wiring must conform to NEC and
local codes and regulations. Use a Class 2
transformer.
Illustration 1—Dimensions and Wiring
Illustration 2—Removing a Protective Cap
Illustration 3—Installing the Black Bayonet Nut
Brown to 24 VAC Phase
Blue to 24 VAC Neutral
