up to 99%
Efficiency!
Can be vented with PVC
MBTU Models
300 • 400 • 500 • 700 • 850
CSA Verified lead Content
Ultra Low Emissions
Less Than .25% Pb
Model 850
Model 300
1. Water Inlet
5. Air Fuel Ratio Gas Valve
12. Direct Spark Ignition
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.
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.
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.
2. Water Outlet
All copper and brass factory installed vertical plumb-
ing connections. Male NPT connections.
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.
6. Intake Air Filter
Every XFyre comes standard with a front access,
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.
removable Merv 8 media, combustion air filter.
13. Internal Tru-SealT Connection
7. Manual Reset High Limit
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.
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.
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.
4. Control Cover
Helps prevent sun damage to the LCD display and
9. Vent Switch
protects the control panel from dust, dirt and water.
Senses possible obstructions in the flue vent pipe.
15. Mounting Feet
Built-in mounting feet located right under the center
of gravity allows for quick and easy Tapcont anchor-
ing.
4a. Control Interface
10. Flow Switch
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.
The XFyre keeps its flow switch safe and dry inside
the cabinet, which protects it during shipping and in
the boiler room.
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.
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.
Think Raypak
Think Green
3
Xtreme Access
The XFyre is purpose built for the
contractor and service professional.
7
4
8
Completely serviceable from the front, top and both sides!
1. Flue Outlet
Category IV- PVC, CPVC and Stainless steel certified.
The XFyre ships PVC ready, no extras to purchase!
5. Direct Vent Capability
8. Inlet and Outlet Connections and Flow Switch
The vertical inlet and outlet connections are all copper
and brass fitted with male pipe thread connections.
The flow switch is fully contained within the cabinet,
protecting it from the elements and boiler room
mishaps. Servicing of the Flow switch can be done
from the top or left side.
Every XFyre is direct vent capable. By installing an
optional combustion air pipe adapter, your XFyre is
ready for direct vent. For factory installation, order
(option D-21) TruSealT at time of order.
2. High Voltage Wiring Box
120VAC main incoming power connections. Boiler
pump wiring and DHW pump wiring. Alarm power
out.
6. Rating Plate Location
9. Removable Air Filter
7. Gas Valve and Boiler Control
3. Gas Inlet
Simple front access; just remove the front door. The fil-
ter just slides right out for quick and easy inspection
and replacement. The high capacity filter is rated
MERV 8.
Raypak uses German-made, high quality Dungs gas
valves, considered the finest modulating gas valves
produced today. To the right of the gas valve is the
boiler computer control center, which always keeps the
blower, gas valve, direct spark ignition and flame
supervision in perfect harmony.
The XFyre will operate at 100% full rate with gas pres-
sures as low as 4.0”w.c.
4. Condensate Drain and Trap
3/4”-NPT PVC connection for condensate removal.
Inset photo shows condensate trap, overfill sensor and
pressure switch for the flue. Raypak offers optional
condensate neutralizer kits (option Z-12) that can be
plumbed between the heater and the drain.
1
9
Remove Front Door
Loosen wing-nuts
FRONT ACCESS INTAKE AIR FILTER
Pullout filter media
4
Xtremely Small Footprint
Dimensions (in.)
Foot-
Print
Ship
Weight
(lbs.)
Model
Amps*
F
A
E
G
H
T
V
K
Flue Ø
2
(ft )
Mounting
Length
NPT
NPT
C/A Ø
300
400
500
700
850
28 - 1/4
30 - 3/4
37 - 1/4
47 - 3/4
54 - 1/4
16 - 1/2
16 - 1/2
16 - 1/2
28
27 - 9/16
29 - 3/4
36 - 1/4
47 - 1/16
53 - 9/16
3/4
1
1
1 - 1/4
1 - 1/4
1 - 1/2
4
4
4
6
6
4
4
4
6
6
3
3
3
410
465
505
550
580
4.3
4.7
5.7
7.3
8.3
3
4
4
5
5
2
2
2
2
19 - 3/8
19 - 3/8
28
Ratings shown are for elevations up to 10,000 feet. For installations at elevations above
2,000 feet, derate may apply, please consult the factory for additional instructions.
*Current Draw is for heater only.
(Supply breaker must have delayed trip.)
Boiler
Efficiency
Water Heaters
MBTUH
Input
MBTUH
Input
Minimum
Model
Input
Output
Output
Efficiency
300
400
500
700
850
300
399
500
700
850
282
375
470
658
799
94%
94%
94%
94%
94%
300
399
500
700
850
285
379
475
665
808
95%
95%
95%
95%
95%
60
80
100
140
170
Heater
Side
Certified
Service
Water Heater Pump Sizes
Medium
XFyre
Minimum
Minimum
Soft
Amps
Hard
HP Amps
Model
Front
Rear
Right
Left
Top
Floor
Vent
24”
24”
0”
0”
12”
0”
24”
24”
0”
0”
24”
---
HP
HP
Amps
300
400
500
700
850
1/8
1/8
1/4
1/2
1/2
1.3
1.3
5.7
6.9
6.9
1/4
1/2
1/2
1
5.7
6.9
6.9
14.0
14.0
Do not use when
hardness exceeds
15 grains per gallon
1
1”
---
Note: Current draw (Amps) is for pump only
Water hardness grains per gallon
*Do not install on carpeting
Note: Local codes may require increased clearances
Soft = 0-4 • Medium = 5-15 • Hard = 16-25
Water above 15gpg requires water softener.
5
Xtremely Easy to Wire
120VAC Wiring Center
The XFyre’s 120VAC wiring center is located on the rear
of the boiler. All incoming line voltage and pump wiring
are contained away from the 24v control wiring. Wiring
the boiler is simple and straight forward.
Low Voltage Wiring Center
Just like its big brother the XTherm, the XFyre has a
separate front mounted wiring center for all of the
low voltage connections. This makes thermostat, water
sensor, 0-10VDC BMS, and alarm contacts a breeze to
set up. No more guessing where the contact points
are buried in the boiler. Built-in cascade control using
CAT 3 or CAT 5 computer network patch cables to
connect with the communication bus between boilers.
Simply remove the front door for quick access.
120VAC Wiring Center
(rear of boiler)
Low Voltage
Wiring Center
Hydronic Boiler
Rates Of Flow And Pressure Drops
XFyre
20°F
30°F
40°F
Minimum Flow*
Maximum Flow
Model
DP
DP
DP
DP
DT
DP
DT
GPM
GPM
GPM
GPM
GPM
300
400
500
700
850
28
38
47
66
80
17
18
16
30
40
19
25
31
44
53
8
7
7
13
17
14
19
24
33
40
5
4
4
7
9
14
19
24
33
40
5
4
4
7
9
40
40
40
40
40
36
47
56
70
80
28
29
23
34
40
16
16
17
19
20
*Closed systems only
Water Heater
Water Hardness
XFyre
Soft
(0-4 Grains Per Gallon)
(5-15 Grains Per Gallon)
(16-25 Grains Per Gallon)
Hard
Medium
Model
DT
DP
MTS SHL
DT
DP
DT
DP
MTS SHL
GPM
GPM
MTS SHL
GPM
300
400
500
700
850
30 19
30 25
30 31
30 44
32 51
8
7
7
13
16
1.5
2
2
2
2
10
8
8
17
20
24
20
20
20
24
24
38
47
66
67
17
18
16
30
28
1.5
2
2
2
2
19
21
20
38
36
Do not use when hardness
exceeds 15 grains per gallon
MTS = Minimum Tube Size, inch.
SHL = System Head Loss, ft (based on heater and tank placed no more than 5 ft apart).
DT = Temperature rise,
°F
DP = Pressure drop through heat exchanger, ft
Recovery Rates
XFyre
Model
Temperature Rise (°F)
20
30
40
50
60
70
80
90
100
300
400
500
700
850
1711
2275
2851
3992
4847
1140
1517
1901
2661
3231
855
684
910
1140
1597
1939
570
758
950
1331
1616
489
650
815
1140
1385
428
569
713
998
1212
380
506
634
887
1077
342
455
570
798
969
1138
1426
1996
2423
6
Xtreme Control
Boiler Control and
On-Board Diagnostic Center
Raypak’s XFyre comes equipped with a microprocessor control
center that displays its information on a 2x20 character LCD
display in plain English. All set-up and programming is done at
this interface. Control monitors boiler system status including
safeties, ignition faults and also stores up to 10 reported faults.
The diagnostic center even monitors and reports the flame
strength signal in microamps. Monitor blower speed, BMS
input and all water and air sensors. A normally-open and nor-
mally-closed dry contact alarm relay is provided.
Outdoor Proven
Raypak is no stranger to the outdoor environment. Our touchpad is 100% waterproof and has been proven and perfected on our
pool products. No guesswork here, just one tough boiler ready to take on jobs that others have to walk away from.
Diagnostic Information
Safety Faults
• Low Water Flow
• Temper Blocking
• High Temperature
• Flue/Gas Pressure
• Supply Thermistor
• Return Thermistor
• Supply High
Ignition Control Faults
• No Flame
• Flame Failure
• Flame When Off
• Fan Speed Error
• Condensate Full
• Outdoor Sensor
• Line Voltage
• Blocked Vent
• Low Water Level
• 24 Volt Low
Example Diagnostic Fault Report
Xtreme Firing Rates
Cascade up to 8 Boilers
Deliver up to 6.8 Million BTU at a 40:1 turndown rate!
The XFyre comes standard with a built-in Cascading Boiler Control. No other controls to buy, just daisy chain the units together
with CAT 3 or CAT 5 computer network cables (not supplied) that plug into the front mounted communication bus on each unit
(see low voltage wiring box opposite page). Designate a Cascade Master Boiler and set all the other boilers as Followers. It’s that sim-
ple! The XFyre has built-in Lead-Lag control. This allows rotation of the starting boiler so all boilers in the system remain active
and the run times remain equal on each unit. Rotation can even be programmed based on time, ensuring equal run times per
unit.
7
Water
Heaters
(Type WH)
Boilers
(Type H)
ASME Section IV, National Board Registered, 160 PSI • H Stamp
v
v
v
v
v
v
Heat Exchanger Tubes
Stainless Steel
• 316L Stainless Steel
• CSA Verified AB-1953 CA low lead compliant
Pressure Relief Valve
(loose)
• 60 PSI
V
v
V
v
V
V
• 125 PSI
• 30, 45, 75, 150 PSI
Temperature & Pressure Gauge (Loose)
Pump
v
V
v
V
• 120V, Single-Phase
Indoor/Outdoor Certified
Vent Terminal
v
V
V
v
V
V
• Outdoor
• Through-the-Wall
Fully-Enclosed Controls
Combustible Floor Rated
v
v
v
v
120V Power Supply
On/Off Switch
Programmable Pump Time Delay, Single-Phase • Included in Controller
v
v
v
v
v
v
Terminal Block Connections
(Front mounted)
• Enable / Disable
• 0-10 VDC Setpoint/Direct Drive Input
v
v
v
v
LCD diagnostic display with 10-Event History (2x20 character display, reads in plain English)
v
v
N/A
v
v
V
Temperature Controller with 3 Water Sensors
• (up to 5:1 Turndown)
• Outdoor Reset Sensor
Multiple Boiler Controller
• TempTracker Mod+ Hybrid, up to 16 boilers/groups
V
V
Direct Spark Ignition System
• 1-try
• 4-try
V
v
V
v
High/Low Gas Pressure Switches
Blocked Vent Switch
High Limit Switch
V
v
v
V
V
v
v
V
• Manual Reset, Fixed
• Automatic Reset, Fixed
Low Water Cut-Off, 24V
Flow Switch
• With Manual Reset and Test Buttons
V
v
V
v
Modulating Combination Gas Valve
Combustion Air Blower
Additional Safety Valve
v
v
V
V
v
v
V
V
• Motorized (externally mounted)
• Solenoid (externally mounted)
CSA-Certified Efficiency
• 94% at Full Fire
• 95% at Full Fire
N/A
v
v
N/A
• 99% at Part Load
v
v
V
v
V
v
v
V
v
v
V
v
V
v
v
V
Air Filter
TruSeal Direct-Vent
Alarm Contacts
CSD-1 / GE GAP Control System
Low NOx
• Meets all current requirements
Condensate Drain and Trap
Condensate Neutralizer
v v = Standard
V V = Optional
Raypak, Inc. • 2151 Eastman Avenue, Oxnard, CA 93030 • phone: (805) 278-5300 • fax: (800) 872-8725 • www.raypak.com
© 2009-2010 Raypak, Inc.
Cat. No. 1000.22B Effective: 07-15-10 Replaces: 02-15-10
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