10
PRODUCT DESCRIPTION
Unit AR 1000 AR 1500 AR 2000
Boiler Category ASME Sect.IV
Type of Gas Natural Gas, Propane*
Max input rate
BTU/hr 1,000,000 1,500,000 2,000,000
(kW) (293) (440) (586)
Min input rate
BTU/hr 100,000 100,000 100,000
(kW) (29) (29) (29)
Turndown Rate 10:1 15:1 20:1
Gas Connection (NPT) Ø Inch 1.5” 1.5” 1.5”
Max. NG Pressure
Inch w.c. 13.5 13.5 13.5
(mbar) (33.6) (33.6) (33.6)
Min. NG Pressure
Inch w.c. 3.5 3.5 3.5
(mbar) (8.7) (8.7) (8.7)
Max. LPG Pressure
Inch w.c. 13.5 13.5 13.5
(mbar) (33.6) (33.6) (33.6)
Min. LPG Pressure
IInch w.c. 8 8 8
(mbar) (19.9) (19.9) (19.9)
O2 Operating Range (Natural Gas) % 4.4 - 5.8 4.4 - 5.8 4.4 - 5.8
Water Connections Ø Inch 3“ 3“ 4”
Condensate drain connection inch (mm) 1” (40) 1” (40) 1” (40)
Max. Allowable Working Pressure
(MAWP)
PSI 80 80 80
(bar) (5.5) (5.5) (5.5)
Relief Drain Connection (NPT)
Ø Inch 2.5” 2.5” 2.5”
(Ø mbar) (65) (65) (65)
Water Volume
Gallon 12 18 24
(liter) (46) (69) (92)
Water ow at max power
(ΔT 36°F / 20°C)
GPM 56.7 85.1 113.4
(m3/h) (13) (19.5) (26)
Water ow at max power
(ΔT 45°F / 25°C)
GPM 45.4 68.1 90.8
(m
3
/h) (10.3) (15.5) (20.6)
Vent/Air Intake Connections
Ø Inch 6 6 8
(Ø mm) (160) (160) (200)
Vent Materials CPVC, PP, Stainless Steel AL29-4C
Max operating temperature
°F 194 194 194
(°C) (90) (90) (90)
Max HE allowable temperature
°F 210 210 210
(°C) (98.9) (98.9) (98.9)
Ambient storage temperature
°F 5 to 158 5 to 158 5 to 158
(°C) (-15 to 70) (-15 to 70) (-15 to 70)
Ambient functioning
temperature
°F 32 to 120 32 to 120 32 to 120
(°C) (0 to 49) (0 to 49) (0 to 49)
Surface heat exchanger per module
SQFT 43 43 43
(m
2
) (4) (4) (4)
Standard Listings & Approvals ETL, ASME, AHRI, CSD-1, SCAQMD
Electrical Req. 120V/1Ph/60Hz FLA 20.3A ** 120V/1Ph/60Hz FLA 24.0A ** 230V/1Ph/60Hz FLA 20.1A **
Weight (dry)
lbs 1058 1323 1676
(kg) (480) (600) (760)
Dimension W x H x D
Inch 33.3X67.2X60.8 *** 33.3X67.2X60.8 *** 33.3X83X60.8 ***
(mm) (845X1707X1544) (845X1707X1544) 845X2108X1544)
(*) 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.
2.8 Technical Data