Electrical Connections

A diaphragm-type expansion tank suitable for potable water will normally eliminate this weeping condition. Please read and follow the manufacturer’s instructions for the installation of such tanks.

WARNING

Domestic	Must Be Vertical To
Domestic	Remove Air Bubbles
Hot Water
Out	Vacuum
Mixing	Relief
Mixing	Valve
Valve
Hot
Water
Out
Unions	To Air
	To Air
	Handler
	Shut-Off
	Valve

Expansion Tank

Cold Water Inlet

Flow Control

Pump Valve

Out	In
	In
	Coil

Air

Handler

Electric Shock Hazard

Disconnect power before servicing.

Replace all parts and panels before operating.

Failure to do so can result in death or electrical shock.

Before plugging in the water heater, always make sure:

MASSACHUSETTS CODE

DOES NOT ALLOW THIS

TYPE OF INSTALLATION.

Typical Mixing Valve Installation Combination

Space Heating/Potable Water Heating System

FIGURE 16

Also see Water System Piping for additional instructions on the safe and correct installation and operation of this water heater.

Solar Installation

If this water heater is used as a solar storage heater or as a backup for the solar system, the water supply temperatures to the water heater tank may be in excess of 120°F. A mixing valve or other temperature limiting valve must be installed in the water supply line to limit the supply temperature to 120°F.

NOTE: Solar water heating systems can often supply water with temperatures exceeding 180°F and may result in water heater malfunction.

•The Voltage and frequency correspond to that specified on the water heater.

•The electrical outlet has the proper overload fuse or breaker protection.

•Unit is to connect to a 120VAC electrical supply outlet (extension cord is not allowed).

IMPORTANT: Do not use an extension cord to connect the water heater to an electrical outlet.

•The water heater and the outlet are properly grounded.

•Installed in accordance with prevailing provisions of local codes, or in the absence of such, National Electric Code, ANSI/NFPS 70 current edition.

Completely fill the tank with water and check all con- nections for leaks. Open the nearest hot water faucet and let it run for three (3) minutes to purge the water lines of air and sediment and to ensure complete filling of the tank. The Electrical power may then be turned on. Verify proper operation after servicing.

Wiring Diagram

	Air Intake	Gas Control
		Valve / Thermostat
	Chamber Fan

Pressure

Switch

Igniter/Flame

Sense Connector

Sensor

CAUTION:

LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION. VERIFY PROPER OPERATION AFTER SERVICING.

Anode

Rod

Control Display

CAUTION:

DO NOT USE AN EXTENSION CORD TO CONNECT THE TRANSFORMER TO AN ELECTRICAL OUTLET.

Power Supply

Transformer