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2. System Description &
Features
2.1 Description
• The HD308 is a fuel burning appliance, designed
to heat fluid “on demand” and provide pumped
circulation of the fluid for use in various portable
hydronic applications.
• The HD308 provides a central source of hot “heat
transfer fluid” (HTF) for use with dependent heat
exchangers such as:
-
Fan coils for heating and drying of structures.
-
Multi-circuit line heat exchange hose or tubing for
ground thawing, concrete curing, snow melting and
slab heating.
-
Custom hydronic heat exchange accessories and
applications.
• The HD308 oil-fired is designed to burn #1 or #2 light
diesel fuel or heating oil.
• Pumping and combustion control are achieved with
electrical components. The FireBird HD308 requires a
120 volt, 20 amp, 3-wire grounding circuit.
• The HD308 is designed for consistently-efficient
outdoor operation.
2.2 Features
• All exposed components are made of non-corrosive
materials such as stainless steel, brass or aluminum.
• The “HTF” circuit includes an open, atmospherically-
vented expansion tank, which effectively eliminates
the system from pressure vessel classification.
• The control system includes a sequence of status
indicator lights which provide a quick function check
and trouble-shooting aid for the operator.
• The combustion chamber/heat exchanger is
2: FireBird HD308, Burner End
1: FireBird HD308, Pump End
completely fabricated from stainless steel and is not
susceptible to corrosion. Temperature turn-down for
prolonged periods of operation (such as for concrete
curing) will not harm the chamber.
• For security and environmental protection, all valves,
controls, burner, pump, filters, “HTF”tank filler and fuel
tank filler are either secured behind lockable access
doors or are self-lockable.
• An electric “Pre-heater” ensures continued clean
lighting and combustion of diesel/light oil, even in the
coldest of climatic conditions.
• Temperature gauges, pressure gauge, system status
indicator lights, “HTF” tank level gauge and fuel tank
level gauge are visible to the operator even when the
system is securely locked down.
• The CSA/UL approved burner, comes with a
permanently installed pressure gauge to simplify
adjustment of fuel pressure when setting up the
burner.
• Door handles and hose connection couplers for the
external HTF circuit are recessed so as not to create
“snag-points” when moving, shipping or delivering the
unit.
3. Safety
3.1 General Safety Guidelines:
CAUTION! This is a fuel burning appliance.
• Some surfaces will become
EXTREMELY HOT!
• When using the fuel oil
the chance of FIRE or
EXPLOSION always exists!
Always follow safe-
operating practices and comply with local fire and fuel
handling codes.
• Before attempting to setup or operate this equipment,
it is imperative that the operator reads and
understands all the information in this manual.
• Untrained people should not attempt to operate this
equipment until they receive proper instruction.
• Maintain instructional and safety labels. Replace
damaged labels.
• Observe all posted warnings and cautions.
• Always wear suitable protective clothing and
accessories such as safety glasses, leather gloves,
certified work boots and hard hat when working with or
operating this equipment.
• Keep children, pets and all untrained bystanders clear
from the heater and accessories
.
