A.O. Smith VF Series - Manual (Page 5)

The EMC-5000 Modulating Control provides true self-diagnostic capabilities to eliminate
guesswork in troubleshooting. It is the most advanced boiler control we have ever offered,
setting a new standard for copper boilers.
Advanced EMC -5000 Modulating Control
Small Size And
Easy Ser vice
Small Footprints, Zero Clearance
To Combustibles On Sides of Unit
■ Compact design, lightweight
copper heat exchanger makes
VF Series easier to move and
install in limited spaces –
perfect for retrofits
■ Fits in an elevator, ideal for
boiler rooms with limited
access — only 30˝ wide
■ Multiple boiler systems provide
increased turndown and even
smoother, more efficient
system operation
■ 4 boilers w/4:1 Turndown
= 16:1 total system turndown
EMC-5000 Modulating Control
■ Modulates the boiler to
maintain tank temperature
within +/- 1 degree
■ Infinite boiler output control
between 100% to 25% fire
■ LED read out – provides
current boiler status in
plain English with help
screens to assist should
a fault occur
■ Controls and monitors every
electrical boiler function with
onboard diagnostics
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