Install Instructions

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 q Check for proper installation of relief valve.
 q Close drain valve.
 q Open highest hot water faucet.
 q Open cold water inlet valve and fill system.
H. WIRING
See Figure 1 & 2 and separate TPI control wiring diagrams.
 q TPI requires 24V to operate. See TPI installation for details.
q Wire either as a heating zone or separate circulator.
 q Water heater temperature is controlled by TPI thermostat.
 q WARNING: Boiler must have high limit control set no more than 200°F.
WATER TEMPERATURE REGULATION
WARNING: Exposure to 125°F or hotter water can cause scalding injuries. Appropriate caution must
be taken when using hot water. Special supervision must be given to those who cannot act quickly
such as children, disabled or elderly persons.
The input of heat into the tank is controlled by an immersion thermostat. These automatic controls are set
at the factory to maintain a water temperature of 120°F. Note: Although these thermostats are designed
to industry standards, they can fail to control temperature properly without any notice, and therefore
should be tested periodically for your protection.
DANGER: IF YOU DISCOVER EXTREME HOT WATER COMING FROM THE FAUCET, IMMEDIATELY
SHUT OFF THE MAIN SWITCH TO THE BOILER AND CALL COMPETENT SERVICE PERSONNEL.
ANY OVERHEATED WATER IS A POTENTIAL HAZARD TO LIFE AND PROPERTY. DO NOT OPERATE
UNTIL THE SOURCE OF THE PROBLEM HAS BEEN DETERMINED AND ELIMINATED.
• Water temperature over 125°F can cause severe burns instantly or death from
scalds.
• Children, disabled and elderly persons are at the highest risk of being
scalded.
• See instruction manual before setting temperature at the water heater.
• Feel water before bathing or showering.
Proper maintenance is important for any product. It is suggested that the
purchaser follow the preventive maintenance program outlined below.
WATER TEMPERATURE CONTROLS
A periodic inspection of the operating controls, heat exchanger and wiring should be made by qualified
service personnel. Temperature of the water should be tested periodically at the faucet to be sure thermo-
stat is working properly.
TEMPERATURE ADJUSTMENT
The TPI comes with a factory set temperature setting of 120°F and differential setting of 10°F. Any
temperature adjustment of the thermostat must be made
by qualified service personnel, as shown below.
SERVICE INFORMATION