Bradford-White Corp TG237E-N(X), TG-237E-N(X)A, TG-150E-N(X), TG-180E-N(X) Table of Contents

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SECTION I: IMPORTANT INFORMATION

READ CAREFULLY

This gas-fired water heater is design certified by CSA International under the American National Standard, Z21.10.3 (as indicated on the rating plate) and CAN/CGA 4.3-M (as indicated on the rating plate) available from CSA Standards Association, 5060 Spectrum Way, Mississauga, Ontario, Canada L4W 5N6.

This water heater must be installed in accordance with local codes. In the absence of local codes, it must be installed in compliance with the National Fuel Gas Code (ANSI Z223.1- Latest Edition), or in Canada CAN/CGA B149.1 Natural Gas Installation Code (Latest Edition) or CAN/CGA B149.2 Propane Installation Code (Latest Edition).

The following terms are used throughout this manual to bring attention to the presence of hazards at various risk levels, or to important information concerning product life.

DANGER

Indicates an imminently hazardous situation, which, if not avoided, will result in death, serious injury or substantial property damage.

CAUTION

Indicates potentially hazardous situation, which, if not avoided, may result in moderate or minor injury or property damage.

WARNING

Indicates a potentially hazardous situation, which, if not avoided, could result in death, serious injury or substantial property damage.

NOTICE

Indicates special instructions on installation, operation or maintenance, which are important but not related to personal injury hazards.

NOTICE

This water heater has a limited warranty. The warranty for this water heater is valid only if the water heater has been installed, maintained, and operated in accordance with these instructions.

TABLE OF CONTENTS

I

.........IMPORTANT INFORMATION

VII

.......OPERATING INSTRUCTIONS

40

II

SPECIFICATIONS

6

 

TEMPERATURE

 

 

 

 

 

ADJUSTMENT

42

III

INSTALLATION

 

VIII

MAINTENANCE

47

 

INSTRUCTIONS

9

 

 

 

IV

WATER CONNECTIONS

17

IX

PARTS LIST

51

V

GAS CONNECTIONS

26

X

WARRANTY

67

VI

ELECTRICAL CONNECTIONS

29

 

 

 

 

 

 

2

 

 

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Contents TG-150E-NX, TG-180E-NX, TG-199E-NX, TG237E-NX & TG-237E-NXA Table of Contents Page Page If YOU Smell GAS Section II Specifications ModelDimensions TG-150E TG-180E TG-199E Section III Installation Instructions Unpacking Water Heater LocationRemove Carton Mount Water Heater on the WallState Regulations Important In the State of Massachusetts 248CMR 4.00Installation Clearances Description Canadian Installations Inside Corner High Altitude Installations Instructions for Connections Section IV Water ConnectionsWater Quality Page Approximate TIME/TEMPERATURE Relationships in Scalds Recommended Piping for a Basic Installation Recommended Piping for a Circulation Systems Recommended Piping for Power Failure Freeze Protection Recommended Piping for Freeze ProtectionPressure Relief Valve Page Page Section V GAS Connections Gas GAS Meter Size Natural GAS onlyGAS Pressure Regulation Specific CorrectionInitial Operation and Testing Installer only Section VI Electrical Connections CPU Page Wiring Diagram for TG-237E-NXand TG-237E-NXAModels Temperature Controls Page Temperature Display Use Indicator Installation of ControlsInitial Operation and Testing of Controls Installer only Illustration Showing Where to Connect Remote Control HarnessResistance Connector Pin Nos Troubleshooting ElectricalWire Color Heat Exchanger and Outgoing Water Temperature Thermistors Flame RodFrost Protection Amp FusesSequence of Operation Section VII Operating InstructionsGeneral Instructions To Fill the Water Heater What to do if YOU Smell GAS Lighting Instructions For Your Safety Read Before OperatingProperty damage, personal injury or loss of life Operation InstructionsTemperature Adjustment Turning OFF the Water Heater for AN Extended Period of TimeTemperature Display Use Indicator First AID for Scalds Approximate TIME/TEMPERATURE Relationships in ScaldsScalding Diagnostic Codes on the Temperature Control Display Code Code DescriptionCode Section Viii Maintenance Burner Flame AppearancePage Circulating Pump Water HeaterPage Section IX Parts List Description Quantity Page Description Quantity Page Description Quantity Page Description Quantity TG-237E Models TG-237E-N TG-237E-X TG-237E-NA TG-237E-XA Page Description Quantity Page Description Quantity Page Description Quantity Section X Warranty What should you do to keep the warranty in effect? What will we do to correct problems?How do you get warranty assistance? What will we not do?Page Page Page Fax/215-641-1670 Parts Fax/215-641-2180