MODELS, Junction BOX W/4 Terminals | A.O. Smith HW 610 specification

CER-TEMP 80 - 2 OR 3 UNIT INSTALLATION SCHEMATIC DIAGRAM

(FOR HOT WATER SUPPLY APPLICATION)

U.S. MODELS, JUNCTION BOX W/4 TERMINALS

FIGURE 27.

32

Image 32

A.O. Smith HW 610 warranty MODELS, Junction BOX W/4 Terminals

Contents

Models HW 300, 399, 420, 520, 610 Tennessee Waltz Parkway Ashland City, TN Safe INSTALLATION, USE and Service Important Definitions General Safety Table of Contents Dimensions and Capacity Data Propane Natural Recovery Capacities 27.7 33.3 LIQUefied petroleum gas models High Altitude InstallationsIntroduction Controls and Function Manual Reset High Limit High Limit Switch Safety Flow SwitchThermal Balancer GPM LPM Safety Relief Valves Tank Temperature Control General ThermometersDrain Valve Not Supplied Required Ability Confined Space S. Installations Canadian InstallationsAIR Requirements Unconfined Space Installation Clearances Typical Boiler InstallationVenting Leveling Vent Pipe Installation Connecting Boiler to a Common VentDraft Hood Vent Connection Venting System Venting Sidewall Optional Power Vent SystemMultiple Vent Table Combined Vent Sizing Tables Model HW-300 Boiler System Installations Conventional InstallationsLINEAR-TEMP Installations ONE Boiler Installed Independent of the Primary System NO. Suggested Items for Installation Schematic of the LINEAR-TEMPSYSTEMBoiler Inlet Outlet Sizes Minimum Branch Sizes to Boilers GAS Connections Purging and Sizing Correct GAS Example Specific Multiplier GravityGAS Pressure Regulators Model Rated Manifold Pressure Number Input Natural Propane Wiring Wiring Connections HW 300 to D. SystemSingle Stage I.I.D. Honeywell GAS Valve HW 300 thru 670. Natural and Propane GAS U.S. & Canada LINEAR-TEMP Installations Boilers and Secondary Circulator are Controlled by Page Canadian MODELS, Junction BOX W/6 Terminals MODELS, Jucntion BOX W/4 Terminals Canadian MODELS, Junction BOX W/6 Terminals Schematic MODELS, Junction BOX W/4 Terminals MODELS, Junction BOX W/4 Terminals Wiring Figures 16 and 17 on Pages 24 PipingCommercial Boiler with Vertical Tank USE this Table for Correct Pump and Water Pipe Size Commercial Boiler with Horizontal Tank Wiring Figures 21 to 27 on Pages 28 to Commercial Boiler with Vertical TANK, CER-TEMP HW-300 HW-399 HW-420 HW-520 Three HW-520s, HW-610s or HW-670s UP-FLOW Model USE this Table for Correct Pump and Water Pipe Size Operation and START-UP Instructions Filling the SystemPilot and Main Burner Main Burner Pilot Burner Electronic Ignition Refer to Operating at Full Input or Full Capacity Checking and Adjusting the InputConsumption Rate Stage Main Burner Operation Flame Current Sensed For Your Safety Read Before Lighting SET T HE Thermostat to Lowwest Setting URN Pilo T Firing VA LVE Counterclockwise Relief Valve General MaintenanceManual Reset High Limit Switch Continuity Test Cleaning and Flushing Instructions PRE-TROUBLESHOOTINGHOT Water Supply Boilers Preventive Maintenance Internal Contaminants Troubleshooting CER-TEMP 80 Recovery System Checkout Procedure YES Burner ignition problems? Is ceramic insulator surrounding the electrode in goodCondition not cracked or broken? Is there excessive draft conditions that may cause pilot MV & MV/PV? Replace pilot burner assembly LED Status and Troubleshooting Location of LEDs Flame LED YellowStatus LED Green OFF No Call for Heat Not applicable None OFF Limited Warranty Conditions and Exceptions