IN S TAL L AT ION , OP E R AT IN G AN D S E R V IC E IN S T R U C T ION S F OR IN D E P E N D E N C E ® G A S - F I R E D BO I L E R F o r s e rvi c e o r r e p a i rs to b o i le r, c a ll yo ur he a ti ng c o ntra c to r. W he n s e e k i ng i nfo rma ti o n o n b o i le r, p ro vi d e B o i le r Mo d e l Numb e r a nd S e ri a l Numb e r a s s ho wn o n Ra ti ng L a b e l.
The New York City Department of Buildings has approved the Independence® Series boiler: Approval No. MEA 154-93-E Vol. III. The City of New York requires a Licensed Master Plumber supervise the installation of this product. The Massachusetts Board of Plumbers and Gas Fitters has approved the Independence® Series boiler. See the Massachusetts Board of Plumbers and Gas Fitters website, http://license.reg.state.ma.us/pubLic/pb_pre_form.asp for the latest Approval Code or ask your local Sales Representative.
CAUTION Probe type low water cutoff devices require annual inspection and maintenance! Although these devices are solid state in their operation, the probe is exposed to possible contamination in the boiler water and subject to fouling. Refer to Low Water Cutoff Service Instructions for complete, step-by-step inspection and cleaning instructions. WARNING This boiler requires regular maintenance and service to operate safely. Follow the instructions contained in this manual.
Figure 1: Dimensional Drawing
Dimensional Data Dimensions (in inches) Boiler Model Approx. Shipping Weight Lbs. IN3 350 IN4 420 IN5 485 21 IN6 Canada 555 24-1/4 IN7 620 27-1/2 IN8 Canada 690 30-3/4 IN9 760 34 815 37-1/4 'A' 'B' 'C' 'D' 14-1/2 33-3/4 4 17-3/4 34-3/4 5 35-3/4 6 IN6 USA 40 'E' 'F' 4-3/4 5-1/4 7-1/4 4" x 15 ft. 5.1 7.8 3.9 8-7/8 5" x 15 ft. 6.5 10.0 5.0 7.9 12.2 6.1 9.3 14.4 7.2 10.7 16.6 8.3 12.1 18.8 9.4 13.5 21.0 10.5 14.9 23.2 11.6 16.3 25.4 12.7 17.
Figure 2: Section Tappings Table 1: Trim and Control Installation in Section Tappings Tapping Size (NPT) Steam Boiler with Probe L.W.C.O. Steam Boiler with Float L.W.C.O. Water Boiler Water Boiler with Tankless Heater A 2 Supply Supply Supply Supply B ½ Bush to ¼ Pressure Gauge Plug Plug Plug C ½ Gauge Glass Nipple & ½ Union Gauge, L.W.C.O. Street Elbow, Syphon & Limit Plug Lower Tapping Bush to ¼ Upper Tapping Press./Temp. Gauge Plug Lower Tapping Bush to ¼ Upper Tapping Press.
I. Pre-Installation WARNING If you do not follow these instructions exactly, a fire or explosion may result causing property damage or personal injury. DANGER Do not install boiler where gasoline or other flammable vapors or liquids, or sources of hydrocarbons (i.e. bleaches, cleaners, chemicals, sprays, paint removers, fabric softeners, etc.) are used or stored.
Figure 3: Clearance to Combustible Materials 5. For boiler located in an unconfined space in a building of other than unusually tight construction, adequate combustion and ventilation air is normally provided by fresh air infiltration through cracks around windows and doors. 6.
II. Knocked-Down Boiler Assembly WARNING Installation of this boiler should be undertaken only by trained and skilled personnel from a qualified service agency. A. Install Base-Burner-Manifold Assembly 1. Base-Burner-Manifold is shipped assembled from factory (Gas Valve and Pilot/Burner Assembly is shipped in the "Gas Controls Carton"). 2. Unpack base assembly and place in location where boiler is to be installed (Refer to Section I: PreInstallation). B.
D. Install Canopy. 1. Install ½" thick x 1" wide ceramic fiber gasket. See Figure 7. 3. Attach canopy using ¼" carriage bolts, nuts, and washers provided. E. Inspect joints between sections. They were factory sealed. If there are any openings due to shipment or handling, reseal with boiler putty. F. Install Jacket. See Figure 9. 1. Models IN7-IN12 steam boilers: remove 3 inch diameter knockouts in jacket top panels. 2. Raise rear panel under rear flange of canopy and rest on floor.
9. Install front removable door by engaging upper side edges of panel with side receiving flanges, sliding up and under top panel flange - seating front door fully - then sliding down to engage bottom flange behind lower front tie bar. G. Install Pilot/Burner Assembly (shipped in Gas Controls Carton). See Figure 10. Figure 10: Combustion Chamber 1. Remove jacket front removable door. Figure 12: Pilot and Gas Piping, Continuous Ignition (Standing Pilot) (IN10 through IN12 Only) a.
I. Install Blocked Vent Switch with sheet metal screws. 1. Models IN3 - IN9. Install on rear flange of canopy. See Figure 15. Figure 16: Blocked Vent Switch Installation, IN10 through IN12 5. Insert harness through ¾ inch hole in right side jacket panel. Secure with strain relief bushing Figure 15: Blocked Vent Switch Installation, IN3 through IN9 2. Models IN10 - IN12. Install on right side of draft hood. See Figure 16. Reset switch must face away from draft hood relief opening. 3.
III. Semi-Pak Boiler Assembly WARNING Installation of this boiler should be undertaken only by trained and skilled personnel from a qualified service agency. A. Remove Crate 1. Remove all hold down screws and brackets. 2. Slide boiler to rear of skid and carefully remove from crate skid onto 2 inch thick piece of wood and then onto floor. Do not bump boiler jacket against floor. 3. Do not drop boiler at any time. B. Move Boiler To Permanent Position. Refer to Section I: Pre-Installation. C.
3. All Steam Boilers and Water Boilers except "EZW" and "WC" Controls Cartons a. Install Junction Box. See Figure 19A. i. Remove center knockout in rear of Junction Box and insert black plastic snap bushing in hole. ii. Install mounting bracket to rear of Junction Box with two (2) blunt sheet metal screws provided. iii. Align center and mounting holes of Junction Box with upper front corner of jacket left side panel. iv.
IV. Packaged Boiler Assembly WARNING Installation of this boiler should be undertaken only by trained and skilled personnel from a qualified service agency. A. Remove crate and move boiler to permanent position as detailed in Section III: Semi-Pak Boiler Assembly. B. Remove Jacket Front Panel. See Figure 45. C. Remove poly bag from vestibule area. E. Install Jacket Front Panel. F. Install Draft Hood. Models IN3 through IN9. 1. Locate and open "Rear Draft Hood Carton". 2.
V. Piping and Trim WARNING Failure to properly pipe boiler may result in improper operation and damage to boiler or structure. A. Design and install boiler and system piping to prevent B. oxygen contamination of boiler water. Sources of oxygen contamination are system leaks requiring addition of makeup water, fittings, and oxygen permeable materials in distribution system.
Failure to pipe boiler as specified in this manual may result in excessive system noise, water line fluctuations and water carry over.
Figure 25: Recommended Water Piping for Circulator Zoned Heating System
Figure 25A: Recommended Water Piping for Zone Valve Zoned Heating System
E. Alliance Indirect Water Heater (if used). Refer to Alliance Installation, Operating and Service Instructions for additional information. 1. Steam. See Figure 27 for piping recommendations. Figure 26: Recommended Piping for Combination Heating and Cooling (Refrigeration) Systems Figure 27: Recommended Piping for Indirect Water Heater 5. Use boiler bypass if boiler is operated in system which has a large volume or excessive radiation where low boiler water temperatures may be encountered (i.e.
G. If a long term pressure test of the hydronic system is required, the boiler should first be isolated to avoid a pressure loss due to the escape of air trapped in the boiler. To perform a long term pressure test including the boiler, ALL trapped air must first be removed from the boiler. A loss of pressure during such a test, with no visible water leakage, is an indication that the boiler contained trapped air.
VI. Gas Piping WARNING Failure to properly pipe gas supply to boiler may result in improper operation and damage to the boiler or structure. Always assure gas piping is absolutely leak free and of the proper size and type for the connected load. An additional gas pressure regulator may be needed. Consult gas supplier. A. Size gas Piping. Design system to provide adequate gas supply to boiler. Consider these factors: 1. Allowable pressure drop from point of delivery to boiler.
4. All above ground gas piping upstream from manual gas valve must be electrically continuous and bonded to a grounding electrode. Do not use gas piping as a grounding electrode. Refer to the National Electrical Code, ANSI/NFPA 70 and/or CSA C22.1 Electrical Code. ½ psig or less, isolate boiler from gas supply piping by closing boiler's individual manual shut-off valve. 2. Using soap solution, or similar non-combustible solution, electronic leak detector or other approved method.
VII. Venting WARNING This appliance needs fresh air for safe operation and must be installed so there are provisions for adequate combustion and ventilation air. Read, understand and follow combustion air instruction restrictions contained in the Pre-Installation instructions of this manual. Do not operate appliance where gasoline or other flammable vapors or liquids, or sources of hydrocarbons (i.e. bleaches, cleaners, chemicals, sprays, paint removers, fabric softeners, etc.
D. Install Vent Connector from draft hood or vent damper to chimney. See Figure 30. 1. Do not connect into same leg of chimney serving an open fireplace. 2. Vent pipe to chimney must not be smaller than outlet on draft hood or vent damper. Type B is recommended, but single-wall vent pipe may be used. Arrange venting system so boiler is served by vent damper device. 3.
VIII. Electrical DANGER Positively assure all electrical connections are unpowered before attempting installation or service of electrical components or connections of the boiler or building. Lock out all electrical boxes with padlock once power is turned off. WARNING Failure to properly wire electrical connections to the boiler may result in serious physical harm. Electrical power may be from more than one source. Make sure all power is off before attempting any electrical work.
Set heat anticipator to match system requirements. See Table 6. In general, setting heat anticipator too low will cause boiler to short cycle without bringing heated space up to temperature. Setting heat anticipator too high will allow boiler to operate longer than necessary and overheat space. 1. A separate electrical circuit must be run from the main electrical service with an over-current device/ disconnect in the circuit. A service switch is recommended and may be required by some local jurisdictions.
Figure 33: Vent Damper Harness to Limit Figure 34: Vent Damper Schematic Wiring Diagram 28
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Figure 35: Wiring Diagrams, Steam, Continuous Ignition (Standing Pilot), Probe Low Water Cutoff
H. Steam Boiler with Continuous Ignition (Standing Pilot) and Probe Low Water Cutoff. See Figure 35. 1. Normal Operation a. Thermostat calls for heat. Thermostat Isolation Relay is energized, closing contacts. b. Vent Damper (if used) opens as stated in Vent Damper Sequence of Operation. c. Gas Valve(s) is energized allowing main gas flow and ignition of Main Burners. d. After Thermostat is satisfied Gas Valve(s) is deenergized, extinguishing main flame. Vent Damper (if used) closes. 2. Safety Shutdown a.
Figure 36: Wiring Diagrams, Steam, Intermittent Ignition (EI), Probe Low Water Cutoff
I. Steam Boiler with Intermittent Ignition (EI) and Probe Low Water Cutoff. See Figure 36. 1. Normal Operation a. Thermostat calls for heat. Thermostat Isolation Relay is energized, closing contacts. b. Vent Damper (if used) opens as stated in Vent Damper Sequence of Operation. c. Ignition Module is energized. Pilot Valve opens and Igniter is energized to ignite Pilot Burner. d. Sensor proves presence of pilot flame. Main Valve(s) opens and ignites Main Burners. e.
Figure 37: Wiring Diagrams, Steam, Continuous Ignition (Standing Pilot), Float Low Water Cutoff
J. Steam Boiler with Continuous Ignition (Standing Pilot) and Float Low Water Cutoff. See Figure 37. 1. Normal Operation a. Thermostat calls for heat. Thermostat Isolation Relay is energized, closing contacts. b. Vent Damper (if used) opens as stated in Vent Damper Sequence of Operation. c. Gas Valve(s) is energized allowing main gas flow and ignition of Main Burners. d. After Thermostat is satisfied Gas Valve(s) is deenergized, extinguishing main flame. Vent Damper (if used) closes. 2. Safety Shutdown a.
Figure 38: Wiring Diagrams, Steam, Intermittent Ignition (EI), Float Low Water Cutoff
K. Steam Boiler with Intermittent Ignition (EI) and Float Low Water Cutoff. See Figure 38. 1. Normal Operation a. Thermostat calls for heat. Thermostat Isolation Relay is energized, closing contacts. b. Vent Damper (if used) opens as stated in Vent Damper Sequence of Operation. c. Ignition Module is energized. Pilot Valve opens and Igniter is energized to ignite Pilot Burner. d. Sensor proves presence of pilot flame. Main Valve(s) opens and ignites Main Burners. e.
Figure 39: Wiring Diagrams, Water, Continuous Ignition (Standing Pilot), Intermittent Circulation
L. Water Boiler with Continuous Ignition (Standing Pilot) and Intermittent Circulation. See Figure 39. 1. Normal Operation a. Thermostat calls for heat. b. Vent Damper (if used) opens as stated in Vent Damper Sequence of Operation. c. Gas Valve(s) is energized allowing main gas flow and ignition of Main Burners. d. After Thermostat is satisfied Gas Valve(s) is deenergized, extinguishing main flame. Vent Damper (if used) closes. 2. Safety Shutdown a.
Figure 40: Wiring Diagrams, Water, Intermittent Ignition (EI), Intermittent Circulation
M. Water Boiler with Intermittent Ignition (EI) and Intermittent Circulation. See Figure 40. 1. Normal Operation a. Thermostat calls for heat. b. Vent Damper (if used) opens as stated in Vent Damper Sequence of Operation. c. Ignition Module is energized. Pilot Valve opens and Igniter is energized to ignite Pilot Burner. d. Sensor proves presence of pilot flame. Main Valve(s) opens and ignites Main Burners. e. After Thermostat is satisfied Ignition Module is de-energized, extinguishing pilot and main flame.
Figure 41: Wiring Diagrams, Water, Continuous Ignition (Standing Pilot), Gravity Circulation
N. Water Boiler with Continuous Ignition (Standing Pilot) and Gravity Circulation. See Figure 41. 1. Normal Operation a. Thermostat calls for heat. Thermostat Isolation Relay is energized, closing contacts. b. Vent Damper (if used) opens as stated in Vent Damper Sequence of Operation. c. Gas Valve(s) is energized allowing main gas flow and ignition of Main Burners. d. After Thermostat is satisfied Gas Valve(s) is deenergized, extinguishing main flame. Vent Damper (if used) closes. 2. Safety Shutdown a.
Figure 42: Wiring Diagrams, Water, Intermittent Ignition (EI), Gravity Circulation
O. Water Boiler with Intermittent Ignition (EI) and Gravity Circulation. See Figure 42. 1. Normal Operation a. Thermostat calls for heat. Thermostat Isolation Relay is energized, closing contacts. b. Vent Damper (if used) opens as stated in Vent Damper Sequence of Operation. c. Ignition Module is energized. Pilot Valve opens and Igniter is energized to ignite Pilot Burner. d. Sensor proves presence of pilot flame. Main Valve(s) opens and ignites Main Burners. e.
Figure 43: Wiring Diagrams, Water, Continuous Ignition (Standing Pilot), Tankless Heater
P. Water Boiler with Continuous Ignition (Standing Pilot) and Tankless Heater. See Figure 43. 1. Normal Operation a. Thermostat calls for heat or low limit senses water temperature below set point. b. Vent Damper (if used) opens as stated in Vent Damper Sequence of Operation. c. Gas Valve(s) is energized allowing main gas flow and ignition of Main Burners. d. After Thermostat or low limit is satisfied Gas Valve(s) is de-energized, extinguishing main flame. Vent Damper (if used) closes. 2. Safety Shutdown a.
Figure 44: Wiring Diagrams, Water, Intermittent Ignition (EI), Tankless Heater
Q. Water Boiler with Intermittent Ignition (EI) and Tankless Heater. See Figure 44. 1. Normal Operation a. Thermostat calls for heat or low limit senses water temperature below set point. b. Vent Damper (if used) opens as stated in Vent Damper Sequence of Operation. c. Ignition Module is energized. Pilot Valve opens and Igniter is energized to ignite Pilot Burner. d. Sensor proves presence of pilot flame. Main Valve(s) opens and ignites Main Burners. e.
IX. System Start-up WARNING Completely read, understand and follow all instructions in this manual before attempting start up. A. Safe lighting and other performance criteria were met with the gas manifold and control assembly provided on boiler when boiler underwent tests specified in American National Standard for Gas-Fired LowPressure Steam and Hot Water Boilers, ANSI Z21.13. B. Check Main Burners. Main burners must be in slots in rear of burner tray and seated on main burner orifices. C.
Figure 48: Lighting Instructions, Continuous Ignition System, VR8200 and VR8300 Gas Valves 51
Figure 49: Lighting Instructions, Continuous Ignition System, 7000 ERHC Gas Valve 52
Figure 50: Operating Instruction, Intermittent Ignition System, VR8204 and VR8304 (except IN12) Gas Valves 53
Figure 51: Operating Instructions, Intermittent Ignition System (EI), VR8304 (IN12 only) Gas Valves 54
Table 7: Ignition Module Terminal Cross-Reference Ignition Module Terminal Designation Wiring Ladder Diagram Terminal Number MV 1 MV/PV 2 PV 3 GND 4 24V (GND) 5 24V 6 SPARK 9 Figure 52: LED Locations TABLE 8: Yellow LED Flame Codes Yellow LED Flash Codea Indicates Recommended Service Action Heartbeat Normal Flame Signal N/A 2 Weak Flame Signal System will operate reliably but flame signal is less than desired.
Table 9: Green LED Status Codes Green LED Flash Code (X + Y)a Next System Action Recommended Service Action No “Call for Heat” N/A None Flash Fast Startup - Flame sense calibration N/A None Heartbeat Normal operation N/A None OFF 5 minute Retry DelayPilot flame not detected during trial for ignition Initiate new trial for ignition after retry delay completed.
Figure 56: 40mm Main Burner Flame Figure 53: Pilot Burner Flame, Honeywell Q350 Figure 57: 1" Main Burner Flame F. Check pilot burner flame and main burner flames Figure 54: Pilot Burner Flame, Honeywell Q327 through observation port. 1. Check pilot flame. a. Continuous Ignition (Standing Pilot), Models IN3 through IN7. See Figure 53. Pilot burner produces a single flame. Flame should be steady, medium hard blue enveloping 3/8 to ½ inch of thermocouple. b.
2. Adjust thermostat to highest setting. 3. Check main burner flames. See Figure 56 or 57. Flame should have clearly defined inner cones with no yellow tipping. Orange-yellow streaks caused by dust should not be confused with true yellow tipping. 4. Adjust thermostat to normal setting. G. Check thermostat operation. Raise and lower temperature setting to start and stop boiler operation. H. Check ignition system shutoff. Gas valve should close and pilot and main burners extinguish. 1.
Table 10: Input Rate Size of Gas Meter Dial Seconds for One One-Half One Two Five Revolution Cu. Ft. Cu. Ft. Cu. Ft. Cu. Ft.
h. Follow instructions TO TURN OFF GAS TO APPLIANCE. See Figure 48, 49, 50, or 51. Drain boiler and system piping. i. Remove drain valve. Thoroughly wash boiler water passages with high pressure spray through drain valve tapping. j. Fill boiler to normal waterline. If water in gauge glass is not clear, repeat procedure starting at step b. k. Remove surface blow-off piping. Install 1 NPT plug in Tapping "L". See Figure 2. 4. Add Boiler Water Treatment. a. Remove safety valve. b.
1. Boiling Out of Boiler and System. Oil and grease which accumulate in a new hot water boiler can be washed out in the following manner. a. Remove Safety Relief Valve using extreme care to avoid damaging it. b. Partially fill boiler. Pour recommended compound into boiler through safety relief valve opening. c. Replace Safety Relief Valve. d. Fill entire system with water. e. Start firing equipment. f. Circulate the water through the entire system. g. Vent the system, including the radiation. h.
X. Service Instructions DANGER This boiler uses flammable gas, high voltage electricity, moving parts, and very hot water under high pressure. Assure that all gas and electric power supplies are off and that the water temperature is cool before attempting any disassembly or service. Assure that all gas valves and electrical disconnect switches are off before attempting any disassembly or service. Do not attempt any service work if gas is present in the air in the vicinity of the boiler.
Figure 58: Boiler Flueway Cleaning i. Inspect connecting lines to boiler for accumulation of mud and scale. Clean as necessary. ii. Examine wiring for brittle or worn insulation and clean electrical contact. iii. Inspect solder joints on bellows and float. Check float for evidence of collapse. Check mercury bulb (where applicable) for mercury separation or discoloration. Do not attempt to repair mechanisms in field.
CAUTION When necessary to remove burners, be sure to reinstall them in the original manner by engaging the orifice and locating hole in the rear of the burner tray. Burners must be aligned with the burner manifold. F. Remove Burners for cleaning, changing orifice plugs, or repairs. 1. Turn off electric service to boiler. 2. Turn off gas supply to boiler. 3. Remove jacket front panel. 4. Disconnect pilot tubing at gas valve. 5. Disconnect thermocouple tubing at gas valve (Continuous Ignition only).
M. Excessive Make-Up Water CAUTION IF, DURING NORMAL OPERATION, IT IS NECESSARY TO ADD MORE WATER THAN INDICATED BELOW, CONSULT A QUALIFIED SERVICE TECHNICIAN TO CHECK YOUR SYSTEM FOR LEAKS. Model No. Gallons Per Month Gallons Per Year IN3 0.1 1 IN4 0.1 1 IN5 0.2 2 IN6 0.2 2 IN7 0.2 3 IN8 0.2 3 IN9 0.3 3 IN10 0.3 4 IN11 0.3 4 IN12 0.4 4 A leaky system will increase the volume of make-up water supplied to the boiler, which can significantly shorten the life of the boiler.
Honeywell Electronic Ignition Trouble Shooting Guide 66
Honeywell Hot Surface to Pilot Trouble Shooting Guide 67
Important Product Safety Information Refractory Ceramic Fiber Product Warning: The Repair Parts list designates parts that contain refractory ceramic fibers (RCF). RCF has been classified as a possible human carcinogen. When exposed to temperatures about 1805°F, such as during direct flame contact, RCF changes into crystalline silica, a known carcinogen. When disturbed as a result of servicing or repair, these substances become airborne and, if inhaled, may be hazardous to your health.
XI. Repair Parts All Independence® Repair Parts may be obtained through your local Burnham Wholesale distributor. Should you require assistance in locating a Burnham Distributor in your area, or have questions regarding the availability of Burnham products or repair parts, please contact Burnham Customer Service at (717) 481-8400 or Fax (717) 481-8408.
Key No. Description Part No. Quantity IN3 IN4 IN5 IN6 IN7 IN8 IN9 IN10 IN11 IN12 1.
Key No. Description Part No.
Key No. Description Part No.
Key No. Description Part No.
Key No. Description Part No.
Key No. Description Part No. Quantity IN3 IN4 IN5 IN6 IN7 IN8 IN9 IN10 IN11 IN12 4.
Manifold and 40mm Main Burners Key No. Description Part No. Quantity IN3 IN4 IN5 IN6 IN7 IN8 IN9 4.
Key No. Description Part No. Quantity IN3 IN4 IN5 IN6 IN7 IN8 IN9 4. Manifold and Main Burners (40MM MAIN BURNERS ONLY) Continued Natural Gas, High Altitude (2000-5000 Ft.) USA Only 4D Main Burner Orifice #39 822727 2 3 --- --- --- --- --- Main Burner Orifice #38 822720 --- --- 4 5 6 7 8 822722 2 3 4 5 6 7 8 LP Gas, High Altitude (2000-5000 Ft.) USA Only 4D Main Burner Orifice #53 Natural Gas, High Altitude (5000-9000 Ft.
Key No. Description Part No. Quantity IN3 IN4 IN5 IN6 IN7 IN8 IN9 IN10 IN11 IN12 5.
Key No. Description Part No. Quantity IN3 IN4 IN5 IN6 IN7 IN8 IN9 IN10 IN11 IN12 5. Pilot Burner and Gas Valve, Intermittent Ignition (EI), Natural Gas 5A Pilot Burner, Honeywell Q348A1002 8236072 1 1 1 1 1 1 1 1 1 1 5B Pilot Orifice, Honeywell 388146NE Included with 5A 1 1 1 1 1 1 1 1 1 1 5C Compression Nut/Fitting, 1/4" OD x 1/4 C.C.
Key No. Description Part No.
Key No. Description Part No.
Key No. Description Part No. Quantity Steam Trim 7A Safety Valve, 3/4 NPT, 15 psi, Conbraco 13-511-08 81660530 1 7B Elbow, 3/4 NPT 806601502 2 7C Nipple, 3/4 NPT x 3" 806600002 2 Low Water Cutoff, McDonnell & Miller PS-802-24 (Probe Included) 80160720 Low Water Cutoff, Hydrolevel CG400-2090 (Less Probe - See Key No.
Key No. Description Part No.
Key No. Description Part No.
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Key No. Description Part No. Quantity IN3 IN4 IN5 IN6 IN7 IN8 IN9 IN10 IN11 IN12 12. Transformer (Steam and Gravity Water Only) 12A Junction Box, 4-11/16" x 4-11/16" x 2-1/8" Refer to Table on Page 86 12B Transformer, 50 VA, Honeywell AT150D1019 80160186 1 1 1 1 1 1 1 1 1 1 12C Relay, SPST, Honeywell R8222K1000 80160127 1 1 1 1 1 1 1 1 1 1 13.
XII. Low Water Cut Off (LWCO) WARNING DO NOT ATTEMPT to cut factory wires to install an aftermarket Low Water Cut Off (LWCO). Only use connections specifically identified for Low Water Cut Off. In all cases, follow the Low Water Cut Off (LWCO) manufacturer's instructions. When A low water cutoff is required to protect a hot water boiler when any connected heat distributor (radiation) is installed below the top of the hot water boiler (i.e. baseboard on the same floor level as the boiler).
Limited Warranty FOR RESIDENTIAL GRADE WATER BOILERS Subject to the terms and conditions set forth below, U.S. Boiler™ Co., Inc. Lancaster, Pennsylvania hereby extends the following limited warranties to the original owner of a residential grade water boiler manufactured and shipped on or after July 1,1991: ONE YEAR LIMITED WARRANTY ON RESIDENTIAL GRADE WATER BOILERS U.S. Boiler Co., Inc.
Limited Warranty FOR RESIDENTIAL CAST IRON STEAM BOILERS By this Warranty Statement the U.S. Boiler™ Company, Inc. of Lancaster, Pennsylvania issues limited warranties subject to the terms and conditions stated below. These limited warranties apply to residential cast iron boilers labeled Independence®, Independence® PV, V8H™ and MegaSteam™ Series, these warranties are issued only to the original homeowner at the original place of installation.