Addendum
Minimizing Smoke During Loss of Power Using Battery Back-up
Harman
TM
strongly recommends installing battery back-up to minimize entry of smoke into the
room in the event of power loss.
Your pellet/biomass burning appliance relies on a combustion blower to remove exhaust. A power failure
will cause the combustion blower to stop. This may lead to exhaust seeping into the room. Vertical rise
in the venting may provide natural draft. It is, however, no guarantee against leakage.
There are two Harman
TM
approved battery back-up options for your appliance:
Uninterruptible Power Supply (UPS) UPS battery back-ups are available online or at computer and
ofce equipment stores. Your Harman
TM
appliance with Rev E or later software available beginning in
November 2010 may be plugged directly into a Harman
TM
approved UPS:
• The APC (American Power Conversion) model #BE750G and the TrippLite model
INTERNET750U are tested and approved. Other brands or models may not be compatible.
When power is lost, a fully charged UPS will power a safe, combustion blower only shut-down. Your
appliance will pulse the blower every few seconds to clear exhaust until the re is out. NOTE: The UPS
provides safe shut-down only. It is not intended for continued operation.
Your appliance will recognize when power is restored. What happens depends on ESP temperature
and whether it is equipped with automatic ignition:
• In “Automatic” setting, units equipped with automatic ignition will respond to the set point
and ESP temperature and resume normal operation.
• In “Manual” setting or for units without automatic ignition:
• If the ESP is cool, the appliance will remain shut down.
• If the re is out and the ESP is still warm, the feeder may restart. Since the re is out, the
ESP temperature will not rise. The unit will then shut-down, and may ash a six-blink status
error. (See ESP error codes)
• If the re is still burning, it will resume normal operation.
Contact your dealer if you have questions about UPS compatibility with your appliance.
Harman Surere 512H Battery Back-up The 512H connects to a 12 volt deep cycle battery that will
run your appliance for up to eight (8) hours. It includes a trickle charge feature that keeps your battery
charged when power is available. NOTE: If the power is out for longer than battery life, smoke
leakage may still occur unless your stove has been safely shut down.
CAUTION! Always keep appliance doors and hopper lid closed and latched during operation
and during power failures to minimize risk of smoke or burn-back.
CAUTION! Use only HarmanTM approved battery back-up devices. Other products may
not operate properly, can create unsafe conditions or damage your appliance.
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