38 InfraStruXure InRow RC Service
Control Actuator
Tools
#1 Phillips screwdriver, 1/4 inch wrench, 2.5 mm Allen-wrench, 10 mm wrench
Replacement
1. Remove power to the unit by disconnecting both power cords (feed A and feed B).
2. Lockout/tagout the unit being serviced.
3. Remove the rear door and the top and bottom air filters.
4. Disconnect the actuator connector #ACT, from the control harness.
a. Use the manual bypass on the
chilled water valve actuator to set it
to full bypass. Use a 2.5-mm Allen
wrench to rotate the actuator
counter-clockwise to the setting
indicated.
b. Note the setting of the three-
position switch at the bottom right
of the actuator.
5. Loosen the screw clamp securing
the actuator to the valve shaft using
a 13/32 inch (10 mm) wrench.
Warning
This device may be connected to more than one input power source. Verify
that both feed A and feed B have been disconnected before attempting
maintenance.
na2028a
Full
Bypass
Full
Cool
na2025a
