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9
Existing Bonnet
DO NOT remove any
internal parts
New, BASyC
™
Capable,
Bonnet Installed
Stem clamp in full up
position—see page 29
for manual adjustment
instructions.
Cap Screws
Make sure there is no gap
between valve stem and
actuator adapter—manually
move, if necessary.
Clip shown in the down
(connected-to-valve-stem)
position.
“Adapt” Button/LED
“Status” LED
These surfaces will the
ush with each other
when installation is
correct.
Bonnet Upgrade-to-BASyC™ Installation Instructions
• Isolate the mixing valve’s inlets and outlet using the ball valves included with every Command Stations or
other upgradeable Acorn Controls Mixing Station.
• Unthread the existing bonnet. Make sure all internal components remain in the valve. There’s no need to
remove or change any internal component.
• Install the upgrade bonnet, noting the longer stem that’s designed to accept the Belimo Actuator provided
in the upgrade kit.
Electronic Actuator Installation Instructions
• Ensure that the actuator stem is manually adjusted fully up as shown in picture.
See page 29 for operating the actuator manually.
• Slide the actuator over the stem and make sure it’s ush with the bonnet.
• Be sure there is no gap between the actuator base and bonnet stem.
• Using a 4mm hex wrench, tightened the cap screws that secure the actuator to the bonnet.
• Slide the black-colored clip on the actuator adapter toward the valve to secure the adapter to the stem of
the bonnet.
• You’ve completed the bonnet upgrade/conversion and need to “auto-range” the bonnet to the valve.
Auto-Ranging (aka Adapting) the Actuator:
• Turn on power to the system.
• Push the “Adapt” button on the actuator and hold for 3 seconds.
• A steady yellow “Status” LED conrms the actuator is in adapter mode. When Adapting is complete,
approx. 3 minutes, only solid green Adapt LED remains lit.
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