Raypak Boiler 302BD 902BD User Guide

Hi Delta® FlexGas® - Type H  
Job:  
Engineer:  
Contractor:  
Preparer:  
Model:  
Dual-Fuel Hot Water Boilers  
Models 302BD-902BD  
Date:  
Indoor/Outdoor:  
MBTUH Input:  
Fast, Economical Natural-to-Propane Gas Switchover  
100% Factory Fire Tested  
84% Efficiency  
Maximum Outlet Temperature: 230°F  
Minimum Non-Condensing Inlet Temperature: 105°F  
Thermal Shock Proof Heat Exchanger  
Limited Twenty-Year Thermal Shock Warranty  
Diagnostic Center with Fault History  
PolyTuf Powder Coated Cabinet  
No Combustible Floor Shield Required  
Fan-Assisted Low NOx Burners  
Patented Burner Security Blanket  
Patent Nos. 6,904,873 & 7,044,124;  
other patents pending  
Heat Exchanger  
Gas Train  
Burner  
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H Stamp  
Headers  
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Manual Gas Shut-Off Valve(s)  
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Ultra-Low NOx: Less than 30 PPM  
Gas Pressure Regulator  
Safety Shut-Off Valve  
Firing Control Valve  
Firing Mode  
Temperature Controls  
Glass-Lined Cast Iron – Standard  
B-2 Tankstat, Single-Stage  
(100-200°F)  
B-3 Tankstat, 2-Stage (100-200°F)  
B-6 Aquastat, 2-Stage (100-200°F)  
Bronze – Option A-1  
ASME Inspected and Stamped  
160 PSIG Working Pressure  
National Board Approved  
Fin Tubing  
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On/Off (H8): Models 302BD,  
402BD  
2-Stage (H9): Models  
302BD-902BD  
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B-  
TempTracker Digital Controller,  
2-Stage  
Copper – Standard  
B-  
TempTracker Digital Controller,  
4-Stage  
Cupro Nickel – Option A-3  
ASME Steel Tube Sheet  
Silicone High Temp. O-Rings  
ASME Pressure Relief Valve  
45 PSIG – Standard on Models  
302BD and 402BD  
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Natural/Propane Gas  
Design Certified ANSI Z21.13/  
CSA 4.9  
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Y-241 Electronic Sequencer, 4-Stage  
Y-281 Electronic Sequencer, 8-Stage  
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Gas Connection  
Options  
Left – Standard  
Right – Option Z-1  
Construction  
Indoor/Outdoor Construction  
Enclosed Front Controls  
C-6 Ignition Module, Manual Reset  
D-21 TruSeal® Direct Vent  
60 PSIG – Standard on Models  
502BD-902BD  
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F-10 Low Water Cut-Off, Remote Probe  
I-1  
High Limit Control, Auto Reset  
PSIG – Optional  
P-  
Pump: HP, 120V, 1, 60Hz  
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Temperature and Pressure Gauge  
Water Connections  
Venting  
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Water Hardness:  
Cast Iron  
Mounted  
GPG  
Bronze  
Loose  
Rear  
Vent Location  
Left – Standard  
Right – Option A-6  
Top – Standard  
Rear – Option D-14  
Vent Termination Cap  
Outdoor D-11  
Indoor, Horizontal D-15  
Indoor, Vertical (by others)  
Combustion Air  
In-Line Filter Kit (TruSeal  
only) D-17  
Air Intake Elbow D-16  
Extractor – Optional  
By others  
Front  
Controls  
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P-26 Cold Water Start (See 2000.48)  
S-1 Low Gas Pressure Switch, Manual  
S-2 High Gas Pressure Switch, Manual  
X-1 SureRack™ Kit  
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120V, 60Hz, 1Power Supply  
120/24V 60Hz Transformer  
100% Shut-Off/Lockout  
Hot Surface Ignition  
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X-2 SureRack Add-on  
Remote Flame Sensor  
High Limit Control, Manual Reset  
On/Off Power Switch  
Manual Shut-Off, Front-Mounted  
Flow Switch  
Blocked Vent Pressure Switch  
Combustion Air Proving Switch  
Economaster Pump Time Delay  
Enable/Disable  
Regulatory Agency Requirements  
Not required  
Catalog No.: 2000.303A  
Effective: 11-15-07  
Replaces: 8-15-07  
 

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