Bradford-White Corp TG-199E-N(X), TG-237E-N(X)A, TG-150E-N(X) Circulating Pump, Water Heater

Page 49

EverHot®Rinnai

Water Heater

In-line
Filter	Gas Supply
	Gas Supply

V1

V2

H3	V3	V4
	V3

Hot Water Line

H2

Cold Water Line

5 gallon pail of virgin, food grade, white vinegar (or virgin, food grade, citric acid).

H1

Circulating Pump

Figure 20. Piping for Mineral Scale Flushing.

49

Image 49

Contents TG-150E-NX, TG-180E-NX, TG-199E-NX, TG237E-NX & TG-237E-NXA Table of Contents Page Page If YOU Smell GAS Model Section II SpecificationsDimensions TG-150E TG-180E TG-199E Section III Installation Instructions Water Heater Location UnpackingMount Water Heater on the Wall Remove CartonImportant In the State of Massachusetts 248CMR 4.00 State RegulationsInstallation Clearances Description Canadian Installations Inside Corner High Altitude Installations Water Quality Section IV Water ConnectionsInstructions for Connections 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 ProtectionPressure Relief Valve Page Page Section V GAS Connections GAS Pressure Regulation GAS Meter Size Natural GAS onlyGas 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 Installation of Controls Temperature Display Use IndicatorIllustration Showing Where to Connect Remote Control Harness Initial Operation and Testing of Controls Installer onlyWire Color Troubleshooting ElectricalResistance Connector Pin Nos Flame Rod Heat Exchanger and Outgoing Water Temperature ThermistorsAmp Fuses Frost ProtectionGeneral Instructions To Fill the Water Heater Section VII Operating InstructionsSequence of Operation Property damage, personal injury or loss of life Lighting Instructions For Your Safety Read Before OperatingWhat to do if YOU Smell GAS Operation InstructionsTurning OFF the Water Heater for AN Extended Period of Time Temperature AdjustmentTemperature Display Use Indicator Scalding Approximate TIME/TEMPERATURE Relationships in ScaldsFirst AID for Scalds Code Code Description Diagnostic Codes on the Temperature Control Display Code Burner Flame Appearance Section Viii MaintenancePage Water Heater Circulating PumpPage 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 How do you get warranty assistance? What will we do to correct problems?What should you do to keep the warranty in effect? What will we not do?Page Page Page Fax/215-641-1670 Parts Fax/215-641-2180