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Alliance SL
Installation, Operating & Service Instructions
• Normally, the temporary increase in the heated water’s pH level is not harmful, but it may be
accompanied by one or more of the following symptoms:
• Faint oder of wet cement
• Silky or oily sensation on the skin
• Residue left on dish ware after washing
• Change in hair’s texture after use of soap or shampoo
• Minor skin irritations for those with sensitive skin
• In order to prevent more severe effects of elevated pH, the new water heater MUST be properly flushed prior
to use. To flush the heater, the hot water faucet(s) should be opened and allowed to run until the water
becomes cold. Once all of the hot water has been drawn from the heater, bring the water temperature inside
the tank back up to its set point. Then, open one of the hot water faucets and draw a sample of hot water.
• Measure the pH level of the hot water using a pH kit (provided by others). If the pH level of the hot water is
above 9, take a water sample from one of the cold water faucets and measure its pH. If the cold water’s pH
is above 9, the heater is not the source of the water’s elevated pH level. Contact the local water authority if
this is the case. If the cold water’s pH is at or below 9, repeat the above flushing process until a pH of 9 (or
below) is measured in a sample of heated water, and above symptoms subside. If the pH level is still above 9
after multiple flushings, contact US Boiler Company for further recommendations.
CAUTION:
After a newly installed Alliance heater is initially filled, if water is not drawn from it for several days or
weeks, the pH level of the water inside the heater may rise higher than what is normally expected, even if the heater
had been flushed prior to this period of inactivity. To avoid adverse reactions to this elevated pH, the heater MUST be
properly flushed and a sample of heated water MUST be measured to verify that its pH is 9 or below prior to use.
I. TPI THERMOSTAT INSTALLATION
•
Attaching TPI Thermostat to tank:
Place hole in back of TPI thermostat over immersion well. TPI thermostat should fit flush against the
tank without immersion well protruding beyond cover of TPI case. Use self-tapping screw provided
(Screw A)
to attach TPI directly to the Alliance SL tank.
(See TPI Diagram 2)
•
Inserting the Temperature Sensor:
Slide temperature sensor all the way into the immersion well – until it contacts the end.
(See TPI Diagram 2)
• The sensor will measure temperature adequately by resting against the bottom of the immersion
well.
(Note: Sensor does NOT need to make intimate contact with entire well surface to work properly)
•
CAUTION: Sensor is soldered directly to TPI. DO NOT BEND SHARPLY OR OVERWORK.
J. TPI WIRING CONTROLS
NOTE: CONTROL ELECTRONICS MUST BE POWERED WITH 24VAC.
• Incoming 24 VAC power must be connected to 24VAC connectors on the bottom right corner of TPI
Thermostat.
(See TPI Diagram 3)
• The TPI 24 VAC only requires 20mA, or about 0.5 Watts.
• 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)
• TPI Wiring will vary depending on the type of boiler and valve controls in the system. Consult
attached Wiring Diagrams for appropriate wiring configuration for your system.
• 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)
.
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Installation Guidelines
(continued)
