Installation - Sentry AutoVREL Installation, Operation And Maintenance Manual

Installation

Unpacking
After carefully removing the Sentry AutoVREL flow controller and flow meter from its
shipping carton, inspect it for any damage. Report damages to the shipper immediately.
Mounting
 NOTE
Installation by a Sentry authorized service representative is recommended due to the complex
mechanical and electrical assembly needed .
Equipment Needed
ƒ Sentry AutoVREL flow controller
– controller and drive unit
– flow meter
– wire harnesses – DC power (4-pin connector) and I/O harness (8-pin connector)
– shaft adapter, set screw and locking nut
ƒ Corded power drill
ƒ Cutting oil
ƒ Loctite Blue 242 or equivalent
ƒ Hammer
ƒ 1/8-inch, 3/16-inch and 9/64-inch Allen wrenches
ƒ 7/16-inch and 1/2-inch open-end, crescent or socket wrench or equivalent
ƒ Sentry AutoVREL mounting kit
ƒ Sentry TSV thermal shutoff valve and TSV switch (may already be on panel)
ƒ 24 VDC power supply (only required if not available on existing panel)
AutoVREL
drive unit
AutoVREL
control unit
Mounted after secondary cooling
Sentry AutoVREL Flow Controller
VREL control valve
TSV Switch
TSV
Optional Alarm wiring
can be routed to the
AutoVREL ow controller
Wire to AutoVREL TSV
input and GND
(Alarm Conn pins 4 & 6)
Wire to ow meter
inputs on AutoVREL
ow controller
Flow meter
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