PB Heat MI/MIH series manual Boiler Removal from Common Venting System

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D.BOILER REMOVAL FROM COMMON VENTING SYSTEM

At the time of removal of an existing boiler, follow these steps with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation:

a.Seal any unused openings in the common venting system.

b.Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.

c.Insofar as is practical, close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on any clothes dryers and any appliance not connected to common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers.

VENTING

d.Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat so appliance will operate continuously.

e.Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a cigarette, cigar, or pipe.

f.After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas-burning appliance to their previous conditions of use.

g.Any improper operation of the common venting system should be corrected so that the installation conforms with the current edition of the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CAN/CSA B149.1, Natural Gas and Propane Installation Code. When resizing any portion of the common venting system, the common venting system should be resized to approach the minimum size as determined using the appropriate tables in the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CAN/CSA B149.1, Natural Gas and Propane Installation Code.

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Contents Series MI/MIH Table of Contents Using this Manual Installation SequenceSpecial Attention Boxes AIR for Combustion and Ventilation PreinstallationAccessibility Clearances Clearance from Combustible ConstructionAir Openings All Air from Indoors on Different Floors Air Openings All Air from Outdoors through Vertical Ducts Planning the Layout Installation SurveyBoiler SET-UP Boiler Supply and Return Water Piping and ControlsParallel Hook-Up with Water Chiller Safety Relief ValveZone Piping with Zone Valves Piping for Zoned SystemsExpansion Tank INDIRECT-FIRED Water HeaterFreeze Protection Vent Damper Installation General VentingIntegral Draft Hood Venting with Vent Damper in Vertical Position Vent Piping and ChimneySeal any unused openings in the common venting system Boiler Removal from Common Venting SystemGas Connection to Boiler GAS PipingMIH Boiler Natural Gas Wiring Controls Zoned System WiringElectrical Sequence of Operation Wiring and Connection Diagram Intermittent Ignition Intermittent Ignition System Operating Sequence Zone Wiring with Zone Valves Completing the Installation START-UP ProceduresValve Tapping and Adjustment Screw Locations Operating Instructions For Your Safety Read Before Lighting Adjustment of GAS Pressure Regulator Adjustment of Pilot GAS FlowControl Descriptions Checking Burner Input CHECK-OUT ProcedureSTART-UP Procedures Troubleshooting Guides TroubleshootingProblem Possible Causes Corrective Actions Intermittent Ignition System Troubleshooting Sequence Maintenance Monthly with Boiler in USE GeneralDaily with Boiler in USE Weekly with Boiler in USEStanding Pilot and Main Burner Flame Annually Before Start of Heating SeasonSeries MI/MIH Boiler Dimensions Boiler Dimensions & RatingsRepair Parts Series MI/MIH GAS Boiler Repair Parts2Manifold Manifold/Gas Train MI Standing Pilot 3b Gas Valve and Pilot Intermittent 4Block/Draft Hood 4a Block/Draft Hood 5Jacket 6Controls/Circulator/Vent Damper Series MI/MIH

MI/MIH series specifications

The PB Heat MI/MIH series represents a significant advancement in the realm of cast iron boilers, engineered for high efficiency and reliable performance in both residential and light commercial applications. Crafted with exceptional care, these boilers combine traditional design elements with modern technologies to optimize heating capabilities.

A standout feature of the MI/MIH series is its construction. Made from high-quality cast iron, the boiler body is built to withstand the test of time while providing superior heat retention. This material ensures consistent heating over extended periods, reducing the need for frequent cycling on and off, which enhances overall efficiency.

The MI/MIH series incorporates a versatile design that accommodates various heating systems, including hot water heating and steam applications. This flexibility is a key selling point, as it allows homeowners and business operators to tailor their heating solutions to specific needs. Additionally, the units are compatible with multiple fuels, including oil and natural gas, making them a practical option for diverse environments.

Efficiency is another critical component of the MI/MIH series. The boilers are designed to operate at high efficiency levels, often surpassing industry standards. Many models in this series feature advanced combustion technology that maximizes fuel use while minimizing emissions. This not only supports environmental sustainability but also results in lower utility bills for consumers.

The MIH variant, specifically, offers additional features like an integrated secondary heat exchanger, which enhances heat transfer and further improves efficiency. Maintenance is made simple, thanks to thoughtful engineering. With large clean-out ports and easily accessible components, routine maintenance can be performed with ease, reducing downtime and extending the boiler's lifecycle.

Moreover, safety is a fundamental aspect of the MI/MIH series. These boilers include multiple safety features, such as automatic safety shutdown systems and built-in pressure controls, ensuring safe operation under various conditions.

In summary, the PB Heat MI/MIH series cast iron boilers stand out due to their durability, versatility, high efficiency, and robust safety features. These models cater to a range of heating requirements, making them a reliable choice for those seeking long-term heating solutions that prioritize both performance and sustainability. As homeowners and businesses look for dependable and efficient heating options, the MI/MIH series remains a prominent player in the industry.