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HydroTherm VSB2-605 Installation, Operation & Maintenance Manual And Replacement Parts List

Vs-b series gas-fired steam cast iron boilers 85,000 to 165,000 btuh input intermittent pilot/vent damper and standing pilot/vent damper
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VS-B SERIES
INSTALLATION, OPERATION
& MAINTENANCE MANUAL
AND REPLACEMENT
PARTS LIST
Gas-Fired Steam
Cast Iron Boilers
85,000 to 165,000 Btuh Input
Intermittent
Pilot/Vent Damper
Standing Pilot/Vent Damper
SECTION 1: INTRODUCTION
Code Compliance ..........................................................2
Venting Requirements ...................................................2
Chimney Requirements .................................................3
Combustion Air Requirements ......................................3
Water Treatment ............................................................3
Shipment of Boiler .........................................................3
Step 1: Locating/Setting Boiler ......................................4
Step 2: Installing Steam Piping .....................................5
Step 4: Venting Boiler.....................................................6
260 NORTH ELM ST. • WESTFIELD, MA 01085 • (413) 564-5515 • FAX (413) 568-9613
5211 CREEKBANK ROAD • MISSISSAUGA, ONTARIO L4W 1R3 • (905) 625-2991 • FAX (905) 625-6610
And

TABLE OF CONTENTS

Step 5: Installing/Testing Gas Piping..............................7
Step 6: Wiring Boiler ......................................................9
Sequence Of Operation................................................11
Prior To Start-Up ..........................................................11
Start-Up & Adjustments................................................11
Before Each Heating Season .......................................15
How To Change Orifices...............................................16
Heating System Problems & Causes ...........................16
REPLACEMENT PARTS ..............................................17
VSB2-605
42-9187

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  • Page 1: Table Of Contents

    VSB2-605 42-9187 VS-B SERIES INSTALLATION, OPERATION & MAINTENANCE MANUAL AND REPLACEMENT PARTS LIST Gas-Fired Steam Cast Iron Boilers 85,000 to 165,000 Btuh Input Intermittent Pilot/Vent Damper Standing Pilot/Vent Damper TABLE OF CONTENTS SECTION 1: INTRODUCTION Step 5: Installing/Testing Gas Piping......7 Step 6: Wiring Boiler ............9...

  • Page 2: Code Compliance

    SECTION 1: INTRODUCTION The following terms are used throughout this manual to CODE COMPLIANCE bring attention to the presence of potential hazards or to Boiler installations must conform to the requirements of important information concerning the product: the authority having jurisdiction or, in the absence of such requirements, to the National Fuel Gas Code ANSI Z223.1-latest edition.

  • Page 3: Chimney Requirements

    CHIMNEY REQUIREMENTS edition, as well as all applicable local codes. If the boiler is installed in an unconfined space, adequate air will be DANGER: A chimney which does not meet modern available via normal infiltration. However, if building con- safety standards will result in a fire or deadly carbon struction is unusually tight or the boiler is installed in a monoxide poisoning of the building residents.

  • Page 4: Section 2: Boiler Installation

    SECTION 2: BOILER INSTALLATION STEP 1: LOCATING/SETTING BOILER Boiler shall be installed such that the gas Boiler may be installed in an alcove (see dimensions in Figure 2.1). Locate boiler so connecting flue pipe ignition system components are protected between draft hood and chimney is as short as possible. from water (dripping, spraying, rain, etc.) during appliance operation and service Observe the following minimum clearances to com-...

  • Page 5: Step 2: Installing Steam Piping

    The supply and return lines should be equipped with drain cocks to drain sediment and sludge from lowest points of boiler. 6" OVERHANG OF BLOCKS AND SHEETMETAL ALL STEP 3: INSTALLING AROUND 4" HOLLOW CLAY HYDRONIC COMPONENTS 6" TILE (TWO COURSES) OPENINGS THRU BLOCKS A low-water cutoff must be installed to protect the unit IN TOP COURSE TO...

  • Page 6: Step 4: Venting Boiler

    STEP 4: VENTING BOILER A factory-mounted spill switch is provided on all VS-B Attach vent damper cable to cable clamp on boiler front boilers (see Figures 2.4 & 2.4A). panel and join the Molex connector (see Figures 2.4 & 2.4A). DANGER: Draft diverter, vent outlet and vent damper as supplied must not be altered in any way, VENT DAMPER...

  • Page 7: Step 5: Installing/Testing Gas Piping

    ADDITIONAL CHIMNEY REQUIREMENTS Chimney condition is of paramount importance for a safe and efficient boiler installation. All installations must include a chimney inspection by a qualified individual or agency. Chimney construction materials must be com- patible with the fuel being used (see Figure 2.5A). Particular attention should be paid on all oil-to-gas con- versions.
  • Page 8 Maximum Capacity of Pipe in Cubic Feet of Natural Gas per Hour for Gas Pressures of 0.5 Psig or Less and a Pressure Drop of 0.3 Inch Water Column (Based on a 0.60 Specific Gravity Gas) Nominal Length of Pipe, Feet Iron Pipe Internal Diameter,...

  • Page 9: Step 6: Wiring Boiler

    STEP 6: WIRING BOILER NOTE: If any of original wire supplied with boiler WARNING: Turn off electrical power supply before must be replaced, use similar wire of 105 C rating. servicing. Contact with live electric components Otherwise, insulation may melt or degrade, expos- can cause electric shock or death.
  • Page 10 OPERATING SEQUENCE OPERATING SEQUENCE FOR SREAM BOILERS STEAM BOILERS EQUIPPED WITH VENT DAMPER, EQUIPPED WITH STANDING PILOT, VENT DAMPER CG-400 SERIES LWCO AND IID HI-LIMIT & CG-400 SERIES LWCO 1. MOTOR DRIVES VENT DAMPER TO CLOSED POSITION AND 1. MOTOR DRIVES VENT DAMPER TO CLOSED POSITION AND REMAINS CLOSED DURING STANDBY.

  • Page 11: Section 3: Start-Up & Operation

    SECTION 3: START-UP & OPERATION SEQUENCE OF OPERATION For sequence of operation of the particular boiler being PRESSURE installed, refer to Figures 2.8, 2.9, 2.10 AND 2.11 in PRESSURE RELIEF VALVE CONTROL Section 2 of this manual. Spill and rollout switches are mounted on all VS-B boil- PRESSURE GAUGE ers (U.S.
  • Page 12 Consult local utility and Hydrotherm. 6. After burner has been in operation for about 10 min- 8. Gas burner orifices supplied with boiler have been...

  • Page 13: Operating Instructions

    WARNING: If you do not follow these instructions exactly, a fire or explosion may result with property damage, personal injury, or loss of life. A. Before Operating smell all around the appliance area B. Use only your hand to push in or turn the gas control for gas.
  • Page 14 OPERATING INSTRUCTIONS Intermittent Pilot – Honeywell VR8204 Natural or Propane Gas STOP! Read the safety information on page 13. Set the thermostat to lowest setting. Turn off all electric power to the appliance. This appliance is equipped with an ignition device which automatically lights the pilot.

  • Page 15: Section 4: Maintenance

    SECTION 4: MAINTENANCE long-handle bristle flue brush down between section WARNING: Improper installation, adjustment, alter- tubes and upward through sections from combustion ation, service or maintenance can cause property chamber in both diagonal directions to remove carbon damage, personal injury exposure to hazardous from finned surfaces.

  • Page 16: How To Change Orifices

    6. Fire boiler at sufficient rate to generate and maintain HEATING SYSTEM PROBLEMS & CAUSES steam. Entrain water and impurities will then discharge No Heat (with steam) from open vent. Add water as necessary so 1. Blown fuse or circuit breaker. that the low water cutoff does not shut off burner.

  • Page 17: Replacement Parts

    REPLACEMENT PARTS LIST as part number and name as shown in parts list. Parts may be obtained from your local Hydrotherm heating contractor. MODEL VS-A SERIES REPLACEMENT PARTS LIST NAME OF PART PART NO.
  • Page 18 NAME OF PART PART NO. VS-85B VS-110B VS-135B VS-165B 3/8 - 16 X 12" Lg. Tie Rod 44-1010 3/8 - 16 X 15 1/2" Lg. Tie Rod 44-1019 3/8 - 16 X 18 1/2" Lg. Tie Rod 44-1063 3/8 - 16 Hex. Nut 57-2601 3/8 Flat Washer 57-4602...
  • Page 19 NAME OF PART PART NO. VS-85B VS-110B VS-135B VS-165B ALTERNATE LOW WATER CUT-OFF AND CONNECTING FITTINGS (SEE FIGURE 2) Low Water Cut-Off (Hon. RW700A) BM-1223 Water Gauge 20-2005 Nipple - 1/2" X 3 1/2" (Brass) 53-1107 Coupling - 1/2" (Brass) 56-5012 Tee-1/2"...
  • Page 20 PARTS FOR STANDING PILOT NAME OF PART PART NO. VS-85B VS-110B VS-135B VS-165B Pilot Ass'y NG-Q314ALB, Q309A, BCR18 BM-8072 Pilot Ass'y LP-Q314ALB, Q309A, BBR10 BM-8073 Pilot Orifice NG (BCR18) 62-3326 Pilot Orifice LP (BBR10) 62-3327 Thermocouple Q309A 04-1302 Thermocouple Q309A (3 FT) 04-1306 Pilot Line w/ Fittings BM-8078...
  • Page 21 27/28 46/77 27/28 FIGURE 1: VS-B GENERAL ASSEMBLY...
  • Page 22 SAME AS IN FIGURE 1 SAME AS IN FIGURE 1 McDONNELL MILLER # 47-2 LOW WATER CUT-OFF/FEEDER AND FITTINGS HONEYWELL RW700A LOW WATER CUT-OFF AND FITTINGS FIGURE 2: LOW WATER CUT-OFF AND FITTINGS FIGURE 3: JACKET ASSEMBLY...
  • Page 23 NOTES...
  • Page 24 260 NORTH ELM ST. • WESTFIELD, MA 01085 • (413) 564-5515 • FAX (413) 568-9613 5211 CREEKBANK ROAD • MISSISSAUGA, ONTARIO L4W 1R3 • (905) 625-2991 • FAX (905) 625-6610...

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