Specifications

For Technical Information and Automated Fax Service, call 800-527-1953. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
Commercial Gas Water Heaters
Revised February 2013 Page 2 of 4
www.hotwater.com AOSCG10300
OTHER MASTER-FIT
®
FEATURES
FULLY AUTOMATIC CONTROL SYSTEM
■
Manual-reset gas shut-off device prevents excessive water temperature
■
Adjustable thermostat with 120ºF — 180ºF range
■
Gas pressure regulator and pilot fi lter
HANDHOLE CLEANOUT
■
Allows easy access to tank interior for cleaning
PLUG KITS
■
Pipe nipples and caps included to plug unused water connections MASTER-FIT
®
OPTIONS:
MANIFOLD KITS FOR MULTIPLE HEATER INSTALLATIONS
2-unit kit, Part Number 9003426205
3-unit kit, Part Number 9003427205
4-unit kit, Part Number 9003428205
OPTIONAL LEG KIT TO MEET NSF STANDARD 5
For all BTR models, Part Number 9003425205
MECHANICAL VENTING KITS
For BTR-120 through BTR-200, Part Number 9006015005
For BTR-250 through BTR-500, Part Number 9006016005
For installation of approved power venter to operate in conjunction with water heater thermostat
Field wiring should conform to latest version of the National Electric Code ANSI/NFPA No.70
For more information, consult manual shipped with water heater or contact the A. O. Smith
Technical Support Center at1-800-527-1953
WATER CONNECTIONS
TOP INLET AND OUTLET
1-1/2” on all models except BTR-251 and BTR-305, not equipped
with top connections
FRONT INLET AND OUTLET
2” on BTR-200, BTR-250, BTR-275 and BTR-400, 1-1/2” on all
other models
BACK INLET AND OUTLET
2” on BTR-198, BTR-200, BTR-250 BTR-275 and BTR-400, 1-1/2”
on all other models
229426_AOSCG10300.indd 2 10/11/10 9:41 AM