Ladder Diagram | Bradford-White Corp TGHE-1991-N(X), TGHE-160I-N(X)

TWIN

THERMISTOR

WATER

LEVELWATER LEVEL

DETECTING ELECTRODE

CIRCUIT

Figure 34. Ladder Diagram.

WARNING

DO NOT adjust any dipswitch settings on PC board except dip switch number 1, if required, for vent length or unless instructed to do so.

47

Image 47

Bradford-White Corp TGHE-1991-N(X), TGHE-160I-N(X) instruction manual Ladder Diagram

Contents

TGHE-160I-NX & TGHE-199I-NX Table of Contents Page Page If YOU Smell GAS Model Section II Specifications Dimensions Pressure Drop psi Water Flow Rate gpm Section III Installation Instructions Remove Carton UnpackingWater Heater Location Mount Water Heater on the Wall Important In the State of Massachusetts 248CMR 4.00 State Regulations 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 Freeze Protection Recommended Piping for Power Failure Freeze Protection Pressure Relief Valve Page Page Section V Venting Venting Direct Vent Terminal Location Vent / Air Intake Terminal Locations Venting System Layout Venting System Installation Horizontal Direct Vent Installations Prior to the Installation of the EverHot Direct Vent System Illustration Showing a Horizontal Termination Installation Vertical Vent Installations Vertical Direct Vent Installations Dip Switch Combustion Blower Dip Switch Settings Installation of Venting System Components Recommended Vent/Air Intake Terminal Position Condensate Coping with Condensation Joint Connection Shortening of Vent Extensions Illustration Showing How to Shorten Vent Extensions Components Needed for Direct Vent Applications Venting Parts & Dimensions Vent Pipe Clamp, p/n Page Illustration Showing How to Properly Cut a Vent Extension Measure Dimension to Fit Final Installation of the Vent System Cut the Vent to Fit Illustration Showing How to Cut the Vertical Vent to Fit Mounting the Vent System Vertical Discharge High Altitude InstallationsPage Manufacturer Product Venting Suppliers Section VI GAS Connections Specific Correction GAS Meter Size Natural GAS onlyGAS Pressure Regulation Gas Initial Operation and Testing Installer only Section VII Electrical Connections Ladder Diagram Wiring Diagram for Tghe Models Temperature Controls Page Installation of Remote Controls Optional Securing screw Wiring hole 21/32 Illustration Showing Where to Connect Remote Control Harness Wire Color Initial Operation and Testing of Controls Installer onlyTroubleshooting Electrical Resistance Connector Pin Nos Flame Rod Heat Exchanger and Outgoing Water Temperature Thermistors Amp Fuses Frost Protection Sequence of Operation Section Viii Operating InstructionsGeneral Instructions To Fill the Water Heater Operation Instructions Lighting Instructions For Your Safety Read Before OperatingProperty damage, personal injury or loss of life What to do if YOU Smell GAS Turning OFF the Water Heater for AN Extended Period of Time Temperature AdjustmentPage Scalding Approximate TIME/TEMPERATURE Relationships in Scalds Code Code Description First AID for Scalds Code Code Description Thermal Fuse Code Code Description Nothing happens Burner Flame Appearance Section IX MaintenancePage Water Heater Circulating PumpPage Section X Parts List Description Quantity TGHE-160I TGHE-199IPage TGHE-160I TGHE-199I Page TGHE-160I TGHE-199I Page TGHE-160I TGHE-199I Section XI Warranty What will we not do? What will we do to correct problems?How do you get warranty assistance? What should you do to keep the warranty in effect?Page Page Fax/215-641-1670 Parts Fax/215-641-2180