A.O. Smith HW 610 warranty Commercial Boiler with Vertical TANK, CER-TEMP

Page 35

TWO HW-399's, HW-420's, HW-520's, HW-610's or HW-670's UP-FLOW MODEL

COMMERCIAL BOILER WITH VERTICAL TANK, CER-TEMP 80

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.

** INSTALLTHERMOMETERAND PRESSURE RELIEF IN OPENINGS PROVIDED ON HW-520, HW-610 & HW-670.

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.

WIRING - FIGURES 21 to 27 on

pages 28 to 32.

HEATERS SPACED 30" APART

INSTALL IN ACCORDANCE

WITH ALL LOCAL CODES

USE THIS TABLE FOR CORRECT

PUMP AND WATER PIPE SIZE

 

Minimum

B & G

 

Model

Pipe Size

*Armstrong

Number

(Inches)

Pump

Pump Size

 

 

 

Size

 

 

A

B

 

 

 

 

HW-300

2"

1-1/2"

2"

S-35

HW-399

2"

1-1/2"

2"

S-35

HW-420

2"

1-1/2"

2"

S-35

HW-520

2"

1-1/2"

2"

S-35

HW-610/670

2-1/2"

1-1/2"

2-1/2"

S-45 2-1/2"

*Assumes 50 equivalent feet of piping or less.

FIGURE 30.

35

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Contents Tennessee Waltz Parkway Ashland City, TN Models HW 300, 399, 420, 520, 610Important Definitions Safe INSTALLATION, USE and ServiceGeneral Safety Table of Contents Propane Natural Dimensions and Capacity Data27.7 33.3 Recovery CapacitiesLIQUefied petroleum gas models High Altitude InstallationsIntroduction Controls and Function GPM LPM Manual Reset High LimitHigh Limit Switch Safety Flow Switch Thermal BalancerSafety Relief Valves Tank Temperature Control Required Ability GeneralThermometers Drain Valve Not SuppliedUnconfined Space Confined Space S. InstallationsCanadian Installations AIR RequirementsLeveling Installation ClearancesTypical Boiler Installation VentingVent Connection Vent Pipe InstallationConnecting Boiler to a Common Vent Draft HoodVenting System Venting Sidewall Optional Power Vent SystemMultiple Vent Table Model HW-300 Boiler Combined Vent Sizing TablesONE Boiler Installed Independent of the Primary System System InstallationsConventional Installations LINEAR-TEMP InstallationsMinimum Branch Sizes to Boilers NO. Suggested Items for InstallationSchematic of the LINEAR-TEMPSYSTEM Boiler Inlet Outlet SizesGAS Connections Correct GAS Purging and SizingModel Rated Manifold Pressure Number Input Natural Propane ExampleSpecific Multiplier Gravity GAS Pressure RegulatorsWiring Connections WiringHW 300 thru 670. Natural and Propane GAS U.S. & Canada HW 300 toD. System Single Stage I.I.D. Honeywell GAS ValveLINEAR-TEMP Installations Boilers and Secondary Circulator are Controlled by Page MODELS, Jucntion BOX W/4 Terminals Canadian MODELS, Junction BOX W/6 TerminalsCanadian MODELS, Junction BOX W/6 Terminals Schematic MODELS, Junction BOX W/4 Terminals MODELS, Junction BOX W/4 Terminals USE this Table for Correct Pump and Water Pipe Size Wiring Figures 16 and 17 on Pages 24Piping Commercial Boiler with Vertical TankCommercial Boiler with Horizontal Tank Commercial Boiler with Vertical TANK, CER-TEMP Wiring Figures 21 to 27 on Pages 28 toHW-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 Main Burner Operation and START-UP InstructionsFilling the System Pilot and Main BurnerPilot 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 URN Pilo T Firing VA LVE Counterclockwise SET T HE Thermostat to Lowwest SettingRelief Valve General MaintenanceManual Reset High Limit Switch Continuity Test Internal Contaminants Cleaning and Flushing InstructionsPRE-TROUBLESHOOTING HOT Water Supply Boilers Preventive MaintenanceCER-TEMP 80 Recovery System Checkout Procedure TroubleshootingYES Is there excessive draft conditions that may cause pilot Burner ignition problems?Is ceramic insulator surrounding the electrode in good Condition not cracked or broken?MV & MV/PV? Replace pilot burner assembly OFF LED Status and TroubleshootingLocation of LEDs Flame LED Yellow Status LED GreenNo Call for Heat Not applicable None OFF Conditions and Exceptions Limited Warranty
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