Specifications

2
PLEASE READ INSTRUCTIONS CAREFULLY
BEFORE INSTALLING WATER HEATER
U.S Boiler Company, Inc. – (herein called the Company) intends that this Alliance SL™ Indirect-Fired Water
Heater be used as a separate zone to a heating system boiler.
This appliance is designed to heat water by circulating water from the boiler through the internal coil in the
tank. We specically do not warrant this tank for high temperature applications such as wood stoves or
steam producing systems. Such use of this product will automatically void the warranty.
The design anticipates the proper installation and care in use of the product. There is risk of property
damage and personal injury inherent in the use of any hot water system. The Company cannot supervise
the installation and therefore makes it a specic condition of the warranty that the customer will supervise
the installation and use of this product to be sure they are performed in accordance with safe guidelines
and proper local or national codes.
Generalized instructions and procedures cannot anticipate all situations. For this reason, only qualied
installers should perform the installation. A qualied installer is a person who has licensed training and a
working knowledge of the applicable codes, regulations, tools, equipment and methods necessary for safe
installation of a boiler system and an indirect water heater.
An installation checklist has been provided to help the customer ensure that all procedures for a safe
installation have been followed.
If questions regarding installation arise, check with your local plumbing and electrical inspectors for proper
procedures and codes. Local codes take a precedent over instructions in this manual.
GENERAL INFORMATION
SPECIFICATIONS & RATINGS
Alliance SL
Model
Specications Ratings
Potable
Volume
(gal.)
Height
(in.)
Diameter
(in.)
Weight
(lbs.)
1st Hour
(gal./hr)
Cont. Draw
(gal./hr)
Standby
Loss
(°F/hr)
AL 27SL 27 39.25 20.00 170 192 162 0.97
AL 35SL 35 39.25 22.75 198 200 162 0.72
AL 50SL 50 40.75 26.00 248 225 171 0.56
AL 70SL 70 45.75 28.00 300 294 217 0.45
AL 119SL 119 67.75 26.00 480 339 235 0.39
Domestic Water Inlet / Outlet = 3/4”M — T&P Valve = 3/4”F
Boiler Water Supply / Return = 3/4”M — except AL 119SL = 1.0”M
The Massachusetts Board of Plumbers and Gas Fitters has approved the Alliance SL™ Indirect-Fired Water Heater. See the
Massachusetts Board of Plumbers and Gas Fitters website, http://license.reg.state.ma.us/pubLic/pl_products/pb_pre_form.asp
for the latest Approval Code or ask your local Sales Representative.
The Commonwealth of Massachusetts requires this product to be installed by a Licensed Plumber or Gas Fitter.