Warren Controls E025, Installation, Operation And Maintenance Instructions

Page: 19 / 28

19
HVAC_BAC_ELECTRIC_IOM_RevE_0421
SEE DRAWING D3400024 on page 16
THESE INSTRUCTIONS SHOULD ONLY BE USED IF THE SOCKET HEAD
CAP SCREWS (ITEM 13) HAVE BEEN LOOSENED AND THE POSITION OF
THE ACTUATOR (ITEM 1) RELATIVE TO THE LINKAGE BASE (ITEM 17) HAS
BEEN CHANGED. OTHERWISE USE THE REMOVAL AND INSTALLATION
INSTRUCTIONS ON PAGE 8 & 9.
THE SILVER SPACER RING THAT COMES WITH THE ACTUATOR MUST BE
ASSEMBLED ON TOP SIDE OF YOKE WITH TURNED DOWN (MACHINED) SIDE
FACING DOWN AS SHOWN ON DRAWING D340024.
1) Push valve stem down until plug is seated. Note stem location.
2) Install hex jamnut (Item 4) on valve stem. Thread jamnut so
that one inch of threads are exposed between jamnut and
top of stem.
3) Hold jamnut on valve stem and turn the stem adapter (Item
5) until it bottoms out on the valve stem. Tighten jamnut to
the bottom of the stem adapter to secure valve stem to stem
adapter.
WARNING: THE VALVE STEM SHOULD NEVER BE
TURNED WHILE THE PLUG IS IN CONTACT WITH
THE SEAT OTHERWISE THE SEATING SURFACES
WILL BE DAMAGED VOIDING THE WARRANTY.
4) Place linkage base (Item 17), spacer ring (Item 2), and yoke
locknut (Item 3) over valve stem and onto bonnet. Watch
orientation of spacer ring and yoke locknut. Linkage base
must rest on bonnet.
5) Rotate linkage base to desired orientation. For the factory
default actuator position, when the actuator (Item 1) is
installed in the linkage base, the motor electrical wire end of
the actuator faces the outlet side of a 2-way valve, common
“C” port on a 3-way mixing, and lower “L” port on a 3-way
diverting valve. Thread yoke locknut onto bonnet and tighten
securely. Use a blunt chisel and hammer for final tightening.
6) Unlock stem connector clamp on the actuator, use fingers on
the front and back sides of black lock assembly to evenly raise
the lock assembly.
WARNING: WHEN HANDLING THE ACTUATOR TAKE
CARE NOT TO DAMAGE THE STEM CONNECTOR
CLAMP AND CROSS BAR ASSEMBLY.
7) Press the manual override button then use the actuator
manual override to lower the stem connector until a slight
resistance is felt. Then raise the stem connector approximately
2-1/4 turns of the manual override (approximately 0.086 inch)
(See manual override on page 3).
WARNING: DO NOT FORCE OR TURN THE MANUAL
OVERRIDE WHEN THE MANUAL OVERRIDE
BUTTON IS NOT PRESSED. DOING SO MAY CAUSE
DAMAGE TO THE ACTUATOR GEARS.
8) Insert first socket head cap screw (Item 13) through front
linkage lock nut (Item 14). Watch orientation. Install first
spring (Item 15) over threaded end of socket head cap screw
into spring bore of front linkage lock nut. Insert threaded end
of socket head cap screw into hole in socket for front linkage
lock nut in one of the actuator rails. The socket for the front
linkage lock nut is oriented away from the motor electrical
wire end of the actuator. Press front linkage lock nut into
socket. The teeth on the front linkage lock nut must face the
teeth on the closest linkage base track when the actuator
is installed on the linkage base. Install second spring on
exposed threaded end of the socket head cap screw. Install
threaded linkage nut (Item 16) over threaded end of socket
head cap screw so second spring is captured in spring bore
of threaded linkage nut. The dovetail on the threaded linkage
nut must face the groove in the closest linkage base track
when the actuator is installed on the linkage base. Thread the
socket head cap screw into the threaded linkage nut. Adjust
the socket head cap screw so the teeth of the front linkage
lock nut will not interfere with the teeth of linkage base track
when the actuator is installed in the linkage base in the next
step. Repeat this step with second socket head cap screw
9) Verify the valve stem is down and the plug is seated. Refer to
location noted in Step 1. Position the actuator (Item 1) in the
desired orientation. For the factory default actuator position,
the motor electrical wire end of the actuator faces the outlet
side of a 2-way valve, common “C” port on a 3-way mixing
valve, and lower “L” port on a 3-way diverting valve. Verify that
the teeth of both front linkage lock nuts will face the teeth in
the closest linkage base track when the actuator is installed
in the linkage base. Verify that the dovetail of both threaded
linkage nuts will face the groove in the closest linkage base
track when the actuator is installed in the linkage base. Press
together the linkage base tracks and insert the actuator rails
into the tracks. Slide the actuator rails into the actuator base
tracks until the metal actuator stem touches the top of the
stem adapter.
READ ALL INSTRUCTIONS CAREFULLY BEFORE BEGINNING.
REMOVAL & INSTALLATION OF ACTUATOR & LINKAGE BASE