Specifications

7
 q The Alliance SL water heater may operate as a separate heating zone using either the heating
system circulator and an appropriate zone valve, or a separate circulator dedicated for water heating.
(See Figure 1 & 2).
 q In both systems, the Alliance SL is controlled through the TPI thermostat on the heater.
(See Figures 1 & 2).
 q TPI thermostat calls for the heat when the temperature in the tank is below the set point (120°F) and
either activates a circulator or zone valve depending upon installation design.
 q Run all 24VAC wiring thru the square notch on bottom of TPI case. (See TPI Diagram 3)
 q Incoming 24VAC power must be connected to 24VAC connectors on the bottom right corner of TPI
control. (See TPI Diagram 3)
 q Connect control wiring to PUMP/TT normally open relay connections (rated for both 24V and 110V
wiring) on the bottom left corner of TPI control. (See TPI Diagram 3)
 q All and only 110VAC wiring must go through an appropriate chase nipple installed in the knockout at
bottom of TPI case.
 q Be certain to replace TPI cover using Black Screw provided.
A. INSPECTING AND PREPARING THE WATER HEATER
 q Remove the cardboard box, which comes packaged with the heater. It should contain the following:
TPI thermostat, T&P valve and a “Tee”, foamed lid and screws.
B. LOCATION
 q Solid foundation and dry location.
 q Protect heater water lines from freezing.
 q Area free of ammable vapors.
 q Sufcient room to service heater.
 q Not in close proximity to wood burning stove.
 q Where leak will not damage property.
C. PROTECTION FROM WATER DAMAGE
 q Be sure to make provisions to protect area from water damage if a leak should occur in the
tank or connected ttings.
D. RELIEF VALVE
 q Warning: Improper installation will present potential hazard to life and property.
 q Check to be sure that proper relief valve requirements are met.
 q T&P installed as shown in Figures 1 and 2.
 q 3/4” discharge pipe – properly protected from freezing and restrictions.
 q No valve between tank and relief valve or in drain line.
 q Provision for hot water discharge from relief valve.
E. INSTALLING THE REMOVABLE HEAT EXCHANGER
 q Heat Exchanger is installed at the factory except for the AL119SL. The following is provided for
servicing.
 q Insert heat exchanger with plastic o-ring housing.
 q WARNING: Plastic o-ring housing must be installed properly. (See Figure 3).
 q For proper installation of Heat Exchanger See Figure 3.
INSTALLATION CHECKLIST