Bradford-White Corp TG-150I-N(X), TG-180I-N(X), TG-199I-N(X), TG-237I-N(X)A, TG237I-N(X)

Figure 43. Wiring Diagram for TG-237I-N(X) and TG-237I-N(X)A Models.

Contents

Main For Interior Installation TG-150I-N(X), TG-180I-N(X), TG-199I-N(X), TG237I-N(X) & TG-237I-N(X)A INSTALLATION AND OPERATION INSTRUCTION MANUAL With Troubleshooting Guide SECTION I: IMPORTANT INFORMATION TABLE OF CONTENTS NOTICE Page Page Page SECTION II: SPECIFICATIONS Model Dimensions Page SECTION III: INSTALLATION INSTRUCTIONS Page Page Page SECTION IV: WATER CONNECTIONS Page Page Page Page 18 Figure 6. Recommended Piping for Freeze Protection. CAUTION Page Combination Water and Space Heating Applications Commercial Use Water Heaters Only Page SECTION V: VENTING Page 24 Vent / Air Intake Terminal Locations M L D Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page NOTE 43 1 2 Page 43 Page 45 SECTION VI: GAS CONNECTIONS 47 WARNING ft) (Btu/Cu. Gas of Value Heating (feet) (meters ) 3 /4 1 1 1/4 Length 0.5 in. W.C. Pressure Drop Page SECTION VII: ELECTRICAL CONNECTIONS HOT NEUTRAL Figure 41. Ladder Diagram. M CPU Page Page 53 TEMPERATURE CONTROLS DANGER CAUTION Page Temperature Display In Use Indicator Priority Button Priority Indicator Thermostat securing screw 1-21/32" 3-5/16" securing screw wiring hole CABLE CLAMP REMOTE CONTROL CABLE REMOTE CONTROL CONNECTION TERMINALS Page Page Page SECTION VIII: OPERATING INSTRUCTIONS Page 62 CAUTION DANGER CAUTION Temperature Display In Use Indicato Thermostat r Priority Button Priority Indicato Page Page If any of the above diagnostic codes are seen flashing on the display, call for service. Failure to remedy faults may result in severe burns, scalds, and/or death. SECTION IX: MAINTENANCE Page 70 Figure 51. Piping for Mineral Scale Flushing. Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page SECTION XI: WARRANTY

Bradford-White Corp - page 52

Models: TG-150I-N(X) TG-180I-N(X) TG-199I-N(X) TG-237I-N(X)A TG237I-N(X)