Piping, Commercial Boiler with Vertical Tank | A.O. Smith HW 610

PIPING

ONE HW-300, HW-399, HW-420, HW-520, HW-610 OR ONE HW-670 UP-FLOW MODEL

COMMERCIAL BOILER WITH VERTICAL TANK

DANGER

TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE

TEMPERATURE AT FIXTURES. SEE TANK TEMPERATURE

CONTROL WARNING ON PAGE 11. IF HIGHER PREHEAT

TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE

BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR HOT

WATER SUPPLIED TO FIXTURES.

IMPORTANT

THE INSTALLATION OF SAFETY FLOW SWITCH AS SHOWN IS REQUIRED TO PROTECT THE BOILER IN CASE OF WATER SERVICE INTERRUPTION OR CIRCULATOR FAILURE.

+PIPING AND FITTINGS BETWEEN GATE VALVES AND BOILERS SHOULD BE BRASS OR BRONZE. OTHER PIPING SHOULD CONFORM TO LOCAL CODES.

GATE VALVES ARE SHOWN FOR SERVICING BOILER. HOWEVER, LOCAL CODES SHALL GOVERN THEIR USAGE.

*PRESSURE RELIEF VALVE RATING SHOULD NOT EXCEED PRESSURE CAPACITY OF ANY COMPONENT IN THE SYSTEM. ** INSTALL THERMOMETER AND PRESSURE RELIEF IN OPENINGS PROVIDED ON HW-520, HW-610 & HW-670.

WIRING - FIGURES 16 and 17 on

pages 24 and 25.

INSTALL IN ACCORDANCE

WITH ALL LOCAL CODES

USE THIS TABLE FOR CORRECT

PUMP AND WATER PIPE SIZE

	Model	Minimum	B & G	*Armstrong
	Model	Pipe Size	Pump	*Armstrong
	Number	Pipe Size	Pump	Pump Size
	Number	(Inches)	Size	Pump Size
		(Inches)	Size
	HW-300	1-1/4"	125	S-25 1-1/4"
	HW-399	1-1/2"	1-1/2" HV	H-32 1-1/2"
	HW-420	1-1/2"	1-1/2" HV	H-32 1-1/2"
	HW-520	1-1/2"	1-1/2" HV	H-32 1-1/2"
	HW-610/670	2"	2"	S-35

*Assumes 50 equivalent feet of piping or less.

FIGURE 28.

33

Image 33

A.O. Smith HW 610 warranty Piping, Commercial Boiler with Vertical Tank, Wiring Figures 16 and 17 on Pages 24

Contents

Tennessee Waltz Parkway Ashland City, TN Models HW 300, 399, 420, 520, 610 Important Definitions Safe INSTALLATION, USE and Service General Safety Table of Contents Propane Natural Dimensions and Capacity Data 27.7 33.3 Recovery Capacities High Altitude Installations IntroductionLIQUefied petroleum gas models Controls and Function High Limit Switch Safety Flow Switch Manual Reset High LimitThermal Balancer GPM LPM Safety Relief Valves Tank Temperature Control Thermometers GeneralDrain Valve Not Supplied Required Ability Canadian Installations Confined Space S. InstallationsAIR Requirements Unconfined Space Typical Boiler Installation Installation ClearancesVenting Leveling Connecting Boiler to a Common Vent Vent Pipe InstallationDraft Hood Vent Connection Venting Sidewall Optional Power Vent System Multiple Vent TableVenting System Model HW-300 Boiler Combined Vent Sizing Tables Conventional Installations System InstallationsLINEAR-TEMP Installations ONE Boiler Installed Independent of the Primary System Schematic of the LINEAR-TEMPSYSTEM NO. Suggested Items for InstallationBoiler Inlet Outlet Sizes Minimum Branch Sizes to Boilers GAS Connections Correct GAS Purging and Sizing Specific Multiplier Gravity ExampleGAS Pressure Regulators Model Rated Manifold Pressure Number Input Natural Propane Wiring Connections Wiring D. System HW 300 toSingle 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 MODELS, Jucntion BOX W/4 Terminals Canadian MODELS, Junction BOX W/6 Terminals Canadian MODELS, Junction BOX W/6 Terminals Schematic MODELS, Junction BOX W/4 Terminals MODELS, Junction BOX W/4 Terminals Piping Wiring Figures 16 and 17 on Pages 24Commercial Boiler with Vertical Tank USE this Table for Correct Pump and Water Pipe Size Commercial Boiler with Horizontal Tank Commercial Boiler with Vertical TANK, CER-TEMP Wiring Figures 21 to 27 on Pages 28 to 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 Filling the System Operation and START-UP InstructionsPilot and Main Burner Main Burner Pilot Burner Electronic Ignition Checking and Adjusting the Input Consumption RateRefer to Operating at Full Input or Full Capacity Stage Main Burner Operation Flame Current Sensed For Your Safety Read Before Lighting URN Pilo T Firing VA LVE Counterclockwise SET T HE Thermostat to Lowwest Setting General Maintenance Manual Reset High Limit Switch Continuity TestRelief Valve PRE-TROUBLESHOOTING Cleaning and Flushing InstructionsHOT Water Supply Boilers Preventive Maintenance Internal Contaminants CER-TEMP 80 Recovery System Checkout Procedure Troubleshooting YES Is ceramic insulator surrounding the electrode in good Burner ignition problems?Condition not cracked or broken? Is there excessive draft conditions that may cause pilot MV & MV/PV? Replace pilot burner assembly Location of LEDs Flame LED Yellow LED Status and TroubleshootingStatus LED Green OFF No Call for Heat Not applicable None OFF Conditions and Exceptions Limited Warranty