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1. Water Inlet
As low as 50°F entering. All copper and brass factory
installed vertical plumbing connections. Vertical
plumbing allows boilers to be installed side by side or
in tight places if need be. Male NPT connections.
2. Water Outlet
All copper and brass factory installed vertical plumb-
ing connections. Male NPT connections.
3. Low Voltage Wiring Board
Allows easy front access to thermostat connections,
Outdoor sensor, DHW sensor, Alarm contacts and BMS
input signal
(0-10VDC)
. Built-in cascade control using
CAT 3 or CAT 5 computer network cables to connect
with the communication bus between boilers. Every
unit comes factory equipped with Cascade control.
Simply remove the front door for quick access and
daisy chain the boilers together.
4. Control Cover
Helps prevent sun damage to the LCD display and
protects the control panel from dust, dirt and water.
4a. Control Interface
Easy to use microprocessor control with a 2x20 LCD
scrolling display. Monitor flame strength
(mA)
, fan
speed
(RPM)
, BMS input signal
(0-10V)
, sensor temps and
setpoints. Built-in outdoor reset feature saves energy-
requires optional outdoor air sensor. Control also pro-
vides indirect priority function. Full diagnostic control
constantly monitoring 18 events. Fault code history
records the last 10 fault events and can be recalled to
help with troubleshooting. Well thought out
ergonomic control pad gives tactile feedback to the
user. No need to second guess your actions, wonder-
ing if you have engaged the buttons or not.The user
is reassured with a tactile pop every time a button is
successfully toggled. Everything you need from set-up
to service is at your fingertips, and all in one location.
5. Air Fuel Ratio Gas Valve
XFyre uses a German, precision manufactured, main
gas valve considered by most to be second to none.
This high tech gas valve works in perfect unison with
the combustion air blower. The result is smooth and
quiet light-offs while delivering a 5:1 turn down.
With this much flexibility, XFyre is the right boiler for
almost any size job.
6. Intake Air Filter
Every XFyre comes standard with a front access,
removable Merv 8 media, combustion air filter
.
7. Manual Reset High Limit
8. Condensate Trap
The XFyre has a built-in condensate trap located at
the rear of the unit. The trap and the overfill conden-
sate sensor are accessible through their own access
panel.
9. Vent Switch
Senses possible obstructions in the flue vent pipe.
10. Flow Switch
The XFyre keeps its flow switch safe and dry inside
the cabinet, which protects it during shipping and in
the boiler room.
11. “Duo” Style Heat Exchanger
The XFyre uses a combined 316L stainless steel pri-
mary and secondary heat exchanger. Weld-sealed
technology eliminates gaskets and o-rings. Special
glycol is not required for hydronic applications. ASME
Section IV constructed and stamped. National Board
registered.
12. Direct Spark Ignition
XFyre's state-of-the-art combustion control system
utilizes the finest dual electrode igniter to start the
combustion cycle. After ignition, the spark rod also
acts as a second flame sensor.
12a. Flame Sense Electrode
After a call for heat, a seperate flame electrode moni-
tors flame rectification. This helps to ensure proper
carry over while also constantly monitoring the flame
over 50 times every second.
13. Internal Tru-Seal
T Connection
Allows the XFyre to be direct vented up to 200 com-
bined equivalent feet (vent and air intake) in a hori-
zontal or vertical vent system.
14. Smart Blower Technology
Utilizing a whisper quiet, all metal, technologically
advanced combustion blower. Air and fuel are mixed
precisely by the computer control center.
15. Mounting Feet
Built-in mounting feet located right under the center
of gravity allows for quick and easy Tapcont anchor-
ing.
16. Weather-Proof Jacket
Heavy gauge galvanized steel with a UV-resistant
Polytuf powder coat finish is impervious to weather
and corrosion. Raypak has one of the finest, top-of -
the-line powder coat systems on the west coast
regardless of industry. We laugh at a 1000 hour salt
spray test. Independent test documentation available
upon request.
Think Raypak
Think Green
Model 850 Model 300