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Engineer:
Contractor:
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Date: |
Model: Indoor/Outdoor:
MVB® - Type H
Heating Boilers
Models 504-2004
84% Thermal Efficiency at Full Rate
100% Factory Fire Tested
Maximum Outlet Water Temperature: 220°F Minimum Acceptable Inlet Water Temperature: 120°F Full Safety Diagnostics with History
Footprint: Less Than 5-1/2 ft2
Limited Twenty-Year Thermal Shock Warranty Limited Ten-Year Heat Exchanger Warranty Electronic Modulation, Constant Ratio 1.4:1 Turndown Soft-Start Modulating Controller with LCD Display Status Display Lights
Heat Exchanger
Headers
Cast Iron – Standard
Bronze – Option A-1
ASME H Stamped
160 PSIG Working Pressure
National Board Approved
Fin Tubing
Copper – Standard
Cupro Nickel – Option A-3
ASME Powder-Coated Tube Sheet
Silicone High Temp O-Rings
ASME Pressure Relief Valve
60 PSIG – Standard
PSIG – Optional
Temperature and Pressure Gauge, Shipped Loose
Stainless Steel Evaporator Plate
Control
120V, 60Hz, 1Ø, Power Supply
120/24V 60Hz Transformer
Ignition Module
3-Try – Standard
Single-Try – Option C-6
Hot Surface Ignition (HSI)
Remote Flame Sensor
High Limit, Manual Reset, Fixed, 240ºF
On/Off Power Switch
Flow Switch
Blocked Vent Pressure Switch
Combustion Air Proving Switch
Pump Switch
Pump Time Delay
Control (cont.)
Diagnostics Panel
Modulating Temperature Control
Water Temperature Sensors (3)
Burner
Ultra-Low NOx: Less than 20 PPM
Gas Train
Fuel
Natural Gas
Propane
Zero Governor Regulator
Dual-Seat Combination Valve
Electronic Modulating Firing Mode
Construction
Indoor/Outdoor Construction
Front Controls Enclosed
PolyTuf Powder Coat Finish
Rear Connections (Water, Electrical, Gas, Vent, Combustion Air)
Design Certified ANSI Z21.13/ CSA 4.9
Venting
Vent Termination
Outdoor - Option D-11
Indoor, Horizontal – Option D-15
Indoor, Vertical (by others)Combustion Air
In-Line Filter Kit – Option D-17
Air Intake Elbow – Option D-16
Extractor – Optional
By others
Not required
Temperature Controllers |
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B-36 |
TempTracker Mod+ Digital |
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Controller, 2-4 Boilers, OA Reset |
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B-37 |
TempTracker Mod+ Digital |
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Controller, 5-10 Boilers, OA Reset |
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B-38 |
TempTracker Mod+ Digital |
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Controller, 11-16 Boilers, |
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OA Reset |
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Y-241 |
Electronic Sequencer, 2-4 Boilers |
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Y-281 |
Electronic Sequencer, 5-8 Boilers |
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Options |
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A-30 |
Air Vent, Auto, 150 PSI |
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F-10 |
Low Water Cut-Off, Remote Probe |
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I-1 |
High Limit, Auto Reset, Adj., |
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100-240°F |
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I-2 |
High Limit, Manual Reset, Adj., |
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100-240°F |
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P- |
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Pump: |
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HP, 120V, 1 , 60Hz |
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Water Hardness: |
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GPG |
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Cast Iron |
Bronze |
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Loose |
Mounted |
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P- |
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Cold Water Start |
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P- |
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Cold Water Run |
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S-1 |
Low Gas Pressure Switch, |
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Manual Reset |
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S-2 |
High Gas Pressure Switch, |
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Manual Reset |
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Regulatory Agency Requirements
Catalog No.: 2000.364C |
Effective: 7-15-08 |
Replaces: 2-1-08 |
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