9
PRODUCT DESCRIPTION
2.8 Technical Data
Unit AR 800
Boiler Category ASME Sect.IV
Type of Gas Natural Gas, Propane*
Max input rate
BTU/hr 800,000
(kW) (234)
Min input rate
BTU/hr 40,000
(kW) (12)
Turndown Rate 20:1
Gas Connection (NPT) Ø Inch 1.5”
Max. NG Pressure
Inch w.c. 13.5
(mbar) (33.6)
Min. NG Pressure
Inch w.c. 4
(mbar) (10)
Max. LPG Pressure
Inch w.c. 13.5
(mbar) (33.6)
Min. LPG Pressure
Inch w.c. 8
(mbar) (19.9)
O2 Operating Range (Natural Gas) % 4.4 - 5.8
CO2 Operating Range (Natural Gas) % 8.5 - 9.5
Water Connections Ø Inch 2.5“
Condensate drain connection inch (mm) 1” (40)
Max. Allowable Working Pressure (MAWP)
PSI 80
(bar) (5.5)
Relief Drain Connection (NPT)
Ø Inch 2.5”
(Ø mbar) (65)
Water Volume
Gallon 9.5
(liter) (37)
Water ow at max power (ΔT 36°F / 20°C)
GPM 45,3
GPM 39,8
(m3/h) 10,4
(m3/h) 9,0
Water ow at max power (ΔT 45°F / 25°C)
GPM 36,2
GPM 31,9
(m
3
/h) 8,2
(m
3
/h) 7,2
Vent/Air Intake Connections
Ø Inch ì 6
(Ø mm) ì (160)
Vent Materials CPVC, PP, Stainless Steel AL29-4C and AISI 316L
Max operating temperature
°F 194
(°C) (90)
Max HE allowable temperature
°F 210
(°C) (98.9)
Ambient storage temperature
°F 5 to 158
(°C) (-15 to 70)
Ambient maximum RH <=90%@194°F °F 32 to 120
Ambient maximum RH <=90%@95°C (°C) (0 to 49)
Surface heat exchanger per module
SQFT 27
(m
2
) 2.5
Standard Listings & Approvals ETL, ASME, AHRI, CSD-1, SCAQMD
Electrical Req. 120V/1Ph/60Hz / 15.5 FLA**
Weight (dry)
lbs 926
(kg) (430)
Dimension W x H x D
Inch 29.4X53.1X52.4
(mm) (747x1350x1330)
(*) For propane fuel applications, please contact factory.
(**) FLA (Full Load Amperage) – maximum current drawn by the boiler if all pumps reach rated horsepower
(***) Mounting feet may be removed during installation to reduce the overall height by 2”. Feet must be re-installed once boiler is in
its nal installation location.