QHT BIASI 3 WOOD Instructions Manual
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QHT BIASI 3 WOOD Instructions Manual

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3Wood Cast Iron Boiler
SAVE THESE INSTRUCTIONS
For wood and
soft coal only.
IMPORTANT:
PLEASE READ THESE INSTRUCTIONS
CAREFULLY BEFORE PROCEEDING WITH
THE INSTALLATION OF THE BOILER.
THESE INSTRUCTIONS MUST BE POSTED
NEAR THE BOILER AND MAINTAINED IN
LEGIBLE CONDITION FOR REFERENCE
BY THE OWNER OR SERVICE PERSON.
Boiler Serial No._____________
Model No.___________
Heating Contractor:____________________
Must be installed by
a qualified licensed
Heating Contractor.
OWNER:
For service and repairs to the
heating system, please contact your
Heating Contractor. The following
information should be filled in by
your Heating Contractor, and used
by you when seeking information
concerning the boiler.
Address:_________________________
_________________________
Telephone Number:
_________________________
Rev. A 12/08

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Summary of Contents for QHT BIASI 3 WOOD

  • Page 1 3Wood Cast Iron Boiler SAVE THESE INSTRUCTIONS Must be installed by For wood and a qualified licensed soft coal only. Heating Contractor. IMPORTANT: OWNER: PLEASE READ THESE INSTRUCTIONS For service and repairs to the CAREFULLY BEFORE PROCEEDING WITH heating system, please contact your THE INSTALLATION OF THE BOILER.
  • Page 2 The BIASI 3Wood boiler block has a limited lifetime warranty (refer to back of manual). Thank you for purchasing our 3Wood series boiler. If you have any questions or comments call please don’t hesitate to contact us immediately . Our goal is 100% customer satisfaction. Sincerely, QHT Inc.

  • Page 3: Table Of Contents

    Table of Contents Important Information Warnings and safety rules, Identification Procedure in event of power failure Refueling the Boiler Wood Burning Heat value of wood, Wood Storage, Ash Removal Creosote, Runaway Fire Chimneys Coal Firing 3Wood Design Installation Considerations Layout of Main Components Transporting and Minimum Clearances Flue Gas Outlet and Combustion Air Assembling the Casing...

  • Page 4: Important Information

    Please read the literature and warranty supplied by the manufacturer of the various accessory devices. • These devices are warranted by the manufacturer, not by QHT, Inc. or BIASI. These accessory devices must be installed and used according to the recommendations of the manufacturer.

  • Page 5: Warnings And Safety Rules, Identification

    Local codes in force and the instructions provided in the manual supplied with the 3WOOD. • The 3WOOD Boiler must be used for the intended purpose. QHT BIASI is not liable for any injury or damages caused to people, animals or things due to errors in installation, operation, maintenance and improper use of the boiler.
  • Page 6 The 3WOOD Boiler is identified by: • The ETL Name Plate that MUST be applied by QHT Inc, so that it is legible when the 3WOOD is installed (for example, on the top panel as shown on page 20). •...

  • Page 7: Procedure In Event Of Power Failure

    PROCEDURE IN EVENT OF POWER FAILURE Should your electricity go off during the heating season, there are several procedures that should be followed in order that you may continue to safely operate your heating system. These procedures apply to the solid-fuel boiler, as the gas or oil-fired boiler, if any, will be completely inoperative. 1.

  • Page 8: Refueling The Boiler

    REFUELING THE BOILER CAUTION • Use extreme caution when refueling the boiler. If the door is opened too quickly, the unburned hot gases may ignite and cause a back puff. This is especially true with very dry wood. • DO NOT tamper with the chain on the draft regulator as it could cause the fire to burn out of control. •...

  • Page 9: Wood Burning

    WOOD BURNING Overview Burn dry and well-seasoned hardwood with a moisture content of 20% or less. Wood must be seasoned at least six months; however, it is preferable to season it for a year to eighteen months. Seasoned wood will not only reduce creosote but will also produce more heat. Some sea- soned hardwoods will yield 20-25% more heat.

  • Page 10: Heat Value Of Wood, Wood Storage, Ash Removal

    The Heat Value of Wood The following chart compiled by the United States Forest Products Laboratory indicates the amount of heat available per cord of wood from a few representative tree species. Other good to very good species would include apple, walnut, pecan, dogwood, cypress, sycamore and gum. The latter two are hard to split, as is elm.

  • Page 11: Creosote, Runaway Fire

    CREOSOTE Creosote condenses from the flue gases more quickly when the temperature in the chimney is low. The actual amount of creosote deposited is dependent on: 1. The amount of moisture in the flue gases. 2. The temperature of the stack, 3.

  • Page 12: Chimneys

    Chimneys WARNING Do NOT connect this unit to a chimney flue serving another appliance. Downdrafts Downdrafts can result from improper chimney height, nearby buildings, tree that are taller then the chimney, and too large of a flue. To help minimize this problem, the top of the chimney must be at least three feet above the point at which it passes through the roof and two feet above the highest point of the roof.

  • Page 13: Coal Firing

    COAL FIRE DANGER COAL FIRES CAN PRODUCE POISONOUS GASES! All coal fires produce large quantities of carbon monoxide (CO) a highly poisonous gas. Exposure to this gas produces drowsiness, sleep, and in some cases, brain damage or even death. Since carbon monoxide is odorless and colorless, the victim is rarely aware that he or she is being overcome until it is too late.

  • Page 14: 3Wood Design

    The 3WOOD Design The 3WOOD Boilers are hot water generators that operate by combustion of hard wood or soft coal. They feature a high quality and extremely thick ASME class 20 cast-iron body, protected by high-density insulation that limits heat loss. The large heat exchange surface and the fins in the flue gas path ensure exceptional resistance to corrosion and very high efficiency that remains constant over time (self-cleaning effect).

  • Page 15: Installation Considerations

    Installation considerations When the 3WOOD is installed, check that The flue, if reused: • Supplies the negative pressure required for the new boiler (see the table of technical specifications on page 10); • is suitable for the temperature of the products of combustion, and has been calculated and constructed according to the required standards;...

  • Page 16: Layout Of Main Components

    LAYOUT OF THE MAIN COMPONENTS Pressure Gauge Flame Inspection Window Temperature Gauge Loading Door Flue Gas Chamber Draft Regulator Mobile Smoke Plate Flue Attachment Loading / Combustion Chamber Flue Gas Damper Flue Gas Baffle Flue Cleanout Door Ash Collection Chamber Casing Ash Pit Door Insulation...

  • Page 17: Transporting And Minimum Clearances

    Transporting Once the packaging has been removed, cut the straps and remove the casing in such a way as to avoid damaging it. • If hoisting equipment is available, suitable for the weight of the boiler, use the eyebolts (1) provided on the body to lift it •...

  • Page 18: Flue Gas Outlet And Combustion Air

    WARNING FLUE GAS OUTLET The chimney and flue must be made in compliance with building codes and resistant to high temperature, condensate and mechanical stress, and that are airtight. • Do not connect to any chimney flue or vent servicing another appliance. •...

  • Page 19: Assembling The Casing

    ASSEMBLING THE CASING A. Remove the outlet and return stubs from the cardboard box inside the loading/combustion chamber, and install them B. Fit a screw and nut in the holes on the four bottom brackets (1), without tightening them C. Insert them in the top of the four slots provided at the bottom of the boiler, and secure them with the nuts.

  • Page 20: Installation Of Controls

    Installation of Controls A. Insert the temperature gauge (16) in the housing on the front panel (15) and secure it B. Partially unwind the capillary tube from the thermometer, insert the sensor in the probe socket (17) and secure it with the fastening spring C.

  • Page 21: Installations Of Flue Gas Partition And Draft Regulator

    Installation of Flue Gas Partition A. Open the loading door (1) B. Remove the flue gas cover (2) by turning the latch (3) C. Insert the flue gas partition (4) in the guide provided and press it fully into the rear of the boiler. D.
  • Page 22 B. Hold the cam in position by hand, remove the protector (9) and replace it with the hexagonal handle (10) at a 45° angle up from the center of the regulator. C. Set the regulator knob (7) by turning knob of regulator counter clockwise to the red 40°...

  • Page 23: Commissioning The Boiler

    Commissioning the 3WOOD Boiler: WARNING PRELIMINARY CHECKS/ Starting The Fire Before starting a fire in the 3 WOOD, check that: 1. The 3WOOD is filled with water. 2. The valves are open in the distribution system. 3. The distribution system has been purged of all its air. 4.

  • Page 24: 3Wood As Only Boiler Piping And Wiring

    3WOOD boiler piping and wiring Considerations Before choosing a particular system for your installation, the possibility of using a mixing valve arrangement to avoid the problems of overheating should be considered. These systems will continuously release heat to the distribution system in proportion to the outside temperature or other load factor. Such an arrangement can be added to any heating system, and is one of the most sophisticated methods of heating system regulation available.
  • Page 25 Note: Power failure reference page 9. Thermostat NOTE: All wiring must be done in accordance with applicable state, local and national codes. Use only copper conductors. 3Wood installed in combination with a oil/gas boiler Note: The operation of the gas boiler must be verified for acceptable operation before and after installation of the add-on appliance by a gas fitter who is recognized by the regulatory authority.
  • Page 26 4-WAY MIXING VALVE Installed with 3WOOD Boiler in Combination with Oil/Gas Boiler 1. A mixing valve arrangement is a method of controlling house temperature that is different than traditional American systems. In the average hydronic system, circulating or not circulating water of a fairly high and relatively constant temperature to radiation controls temperature in the house or zone.
  • Page 29 3WOOD Boiler with circulator Piped in Parallel with Oil/Gas Boiler In the traditional American baseboard, hydronic system, the heating temperature in the house or zone is controlled by circulating or not circulating water of a fairly high and relatively constant temperature to radiation. The thermostat used in such a system is a simple switch to a relay which turns the circulator on and off.
  • Page 33 Description 3WOOD 4,5,6,7 Bottom Door 59200644 Stud Screw 59200619 Hinge 59200645 59200646 Bushing 59200620 Gasket 59200729 Flange 59200621 Flame Guard 59200647 Side Tapping Top Door 59200648 Rear Boiler Section 59200623 Handle Catch 59200649 Intermediate Boiler Sections 59200624 Handle Catch 59200650 Top Push Nipples 59200625 Regulator...
  • Page 34 Description 3WOOD-4 3WOOD-5 3WOOD-6 3WOOD-7 Top Rear Panel 59200600 59200600 59200600 59200600 Insulation Assembly 59200601 59200602 59200603 59200604 Rear Panel 59200605 59200605 59200605 59200605 Cover Panel 59200606 59200607 59200608 59200609 Right Side Panel 59200610 59200611 59200612 59200613 Front Panel 59200614 59200614 59200614 59200614...

  • Page 36: Shutdown

    SHUTDOWN Extended Shutdown: If the boiler is not used for an extended period, the following operations must be performed: • Close the on-off valves connected to the 3WOOD Boiler. • Remove the ash and clean the flue gas path. • Assess whether the Technical Service needs to be contacted for more through cleaning.

  • Page 37: Troubleshooting

    Troubleshooting Problem Cause Corrective action − Clean and check the tightness of the flue gas path − Fumes are escaping into the air − Check that the loading and combustion chamber doors close correctly − Check correct operation and replace if −...

  • Page 38: System Checkout

    System Checkout: Boiler Model No._________________ Serial No.__________ Original Purchaser: Installer: _________________________ ______________________ _________________________ ______________________ _________________________ ______________________ Boiler Performance Tests: GROSS STACK TEMPERATURE -------------------- ROOM TEMPERATURE (AMBIENT) ------------------- NET STACK TEMPERATURE --------------------- CO2 ----------------- O2---------------- SMOKE READING ---------------- COMBUSTION EFFICIENCY---------------------- COMMENTS:...

  • Page 39: Warranty

    Components that are part of the heating system, but cast-iron boiler and casing are free from defects in material and were not manufactured by Biasi or QHT as part of the boiler. workmanship for one year from the date of installation. If the boiler The workmanship of the installers of 3WOOD boilers.
  • Page 40 For service please contact: QHT Inc. 3560 Lafayette RD Portsmouth, NH 03801 Email: info@qhtinc.com 3 WOOD Boiler Web: www.qhtinc.com Manufactured by: Telephone: 800-501-7697 Biasi S.p.A Fax: 603-334-6401 Verona, Italy...

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