A.O. Smith BTH-120 through BTH-500 - Manual (Page 3)

ACGSS02407
Page 3 of 4
INSTALLATION CLEARANCES
Sides 0˝
Front 0˝
Rear 0˝
Top 1.5˝
To Combustibles* 0˝
• Approved for combustible floors
DIMENSIONS AND SHIPPING WEIGHTS
Water connections: 1-1/2˝
MAXIMUM EQUIVALENT
VENT LENGTH:
BTH-
120 – 250
using 3˝ pipe:
50 ft.
BTH-
120 – 250
using 4˝ pipe:
120 ft.
BTH-
300 – 500
using 3˝ pipe:
not applicable
BTH-
300 – 500
using 4˝ pipe:
70 ft.
GAS VALVE PIPING
BTH-120 1/2˝ NPT
BTH-150 3/4˝ NPT
BTH-199 3/4˝ NPT
BTH-250 3/4˝ NPT
BTH-300 1 1/4˝ NPT
BTH-400 1 1/4˝ NPT
BTH-500 1 1/2˝ NPT
MODEL
DIMENSIONS
SHIP WEIGHT
STD
SHIP WEIGHT
ASME
A B C D E F G
INCHES/CM INCHES/CM INCHES/CM INCHES/CM INCHES/CM INCHES/CM INCHES/CM LBS/KG LBS/KG
BTH-120 55.5/141 44.5/113 35/88.9 27.75/70.5 7.5/19.1 6.3/16 47/119.4 460Lbs/208.7Kg 490Lbs/222.2Kg
BTH-150 75.5/191.8 64.5/163.8 55.5/141 27.75/70.5 7.5/19.1 6.3/16 68/172.7 555Lbs/251.7Kg 595Lbs/269.9Kg
BTH-199, 250 75.5/191.8 64.5/163.8 55.5/141 27.75/70.5 7.5/19.1 6.3/16 72/182.9 555Lbs/251.7Kg 595Lbs/269.9Kg
BTH-300, 400, 500 75.5/191.8 64.5/163.8 50.77/129 33.12/84.1 8/20.3 4.86/12.3 67.25/170.8 N/A 855Lbs/408.2 Kg
D
F
BTH-300-500
BTH-120-250
E
G
C
B
WATER OUTLET
1 1/2˝ NPT
A
188427_ACGSS02407.indd 3 12/7/07 9:26:22 AM