Emerson 37E73A-906 installation instructions For Natural Gas Only, Description, Precautions

37E73A-903 & 906 INTELLI-VENT™

Water Heater Thermostat Control

Installation Instructions

For Natural Gas Only

Operator: Save these instructions for future use!

FAILURETO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.

DESCRIPTION

The 37E73A-903/906 INTELLI-IGNITION™ control is a combination gas valve, ignition control, and thermostat for use on Power Vented water heaters. The microcomputer in the control supervises the ignition sequence and timings for the water heater, and provides diagnostic codes in case of system malfunction. The control provides direct burner ignition using the White-Rodgers’ Silicon Nitride ignitor. The control uses the INTELLI-IGNITION™ technology to greatly extend the ignitor’s life.

Fixed Adjustment Regulator Controls: The gas regulator on this control requires no field service. The regulator automatically controls and maintains the burner gas pressure.

!WARNING

“WHAT TO DO IF YOU SMELL GAS”

•Do not try to light any appliance.

•Do not touch any electrical switch; do not use any phone in your building.

•Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s Instructions.

•If you cannot reach your gas supplier, call the fire department.

!WARNING

Do not use this Natural Gas control on LP Gas water heater. Improper operation could occur, resulting in personal injury and/or death due to Carbon Monoxide (CO) poisoning, fire, or explosion. Check for proper gas type as listed on the rating plate affixed to the water heater.

	CONTENTS
Description	1
Precautions	1
Specifications	2
Installation	2
Wiring	5
Operation	6
Troubleshooting	7

PRECAUTIONS

!WARNING

FIRE, SHOCK AND EXPLOSION HAZARDS

•Shut off main gas to appliance for service or until installation is complete.

•Disconnect electric power before servicing.

•Do not exceed the specified voltage.

•Replace existing control with recommended model.

•Protect the control from direct contact with water

(dripping, spraying, rain, etc.)

•If the control has been in direct contact with water, replace the control.

•Label all wires before disconnection when servic- ing controls.Wiring errors can cause improper and dangerous operation.

•Route and secure wiring away from flame.

•Ensure proper earth grounding of appliance.

•Ensure proper connection of line neutral and line hot wires.

•Do not use tools to operate this control.

•Do not take control apart, there are no serviceable parts inside.

•Do not use control if it has been flooded.

•Never stand on the control or use as a step.

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