PEERLESS MI Series Installation, Operation & Maintenance Manual
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PEERLESS MI Series Installation, Operation & Maintenance Manual

Gas boilers
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Series
MI/MIH
™
Gas
Boilers
I n s t a l l a t i o n ,
O p e r a t i o n &
M a i n t e n a n c e
M a n u a l

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Summary of Contents for PEERLESS MI Series

  • Page 1 Series MI/MIH ™ Boilers I n s t a l l a t i o n , O p e r a t i o n & M a i n t e n a n c e M a n u a l...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS USING THIS MANUAL 7. START-UP PROCEDURES A. INSTALLATION SEQUENCE ... . .1 A. COMPLETING THE INSTALLATION ..21 B. SPECIAL ATTENTION BOXES ... .1 B.

  • Page 3: Using This Manual

    USING THIS MANUAL USING THIS MANUAL A. INSTALLATION SEQUENCE DANGER Follow the installation instructions provided in this Indicates a condition or hazard which will cause manual in the order shown. The order of these severe personal injury, death or major property instructions has been set in order to provide the installer damage.

  • Page 4: Preinstallation

    PREINSTALLATION 1. PREINSTALLATION Read carefully, study these instructions before beginning work. This boiler must be installed by a qualified contractor. The boiler warranty can be voided if the boiler is not installed, maintained and serviced correctly. NOTICE The equipment must be installed in accordance with those installation requirements of the authority having jurisdiction or, in the absence of such requirements, to 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 .

  • Page 5: Air For Combustion And Ventilation

    PREINSTALLATION 3. Indoor Air Opening Size and Location: Openings C. AIR FOR COMBUSTION AND connecting indoor spaces shall be sized and located VENTILATION as follows: a. Combining spaces on the same floor: 1. Adequate combustion air and ventilation air must be Provide two permanent openings communicating provided for this appliance in accordance with the with additional spaces that have a minimum free...
  • Page 6 PREINSTALLATION 4. Outdoor Combustion Air: Outdoor combustion air is ii. Where communicating with the outdoors to be provided through one or two permanent through horizontal ducts, each opening shall openings. The minimum dimension of these air have a minimum free area of 1 in per 2000 openings is 3 inches (76 mm).
  • Page 7 PREINSTALLATION 5. Combination Indoor and Outdoor Combustion Air: If ii. Where the free area through a louver or grille the required volume of indoor air exceeds the is not known, it shall be assumed that wooden available indoor air volume, outdoor air openings or louvers will have 25% free area and metal ducts may be used to supplement the available louvers and grilles will have 75% free area.

  • Page 8: Installation Survey

    PREINSTALLATION D. INSTALLATION SURVEY E. PLANNING THE LAYOUT For new and existing installations, a Water Installation Prepare sketches and notes of the layout to minimize the Survey is available from PB Heat, LLC. The survey will possibility of interferences with new or existing provide information on how a hot water boiler works equipment, piping, venting and wiring.

  • Page 9: Boiler Set-Up

    BOILER SET-UP 2. BOILER SET-UP 1. Provide a sound, level foundation. Locate boiler as 4. Separate the wood shipping pallet from the boiler near to the chimney or outside wall as possible and base by removing two (2) hold-down bolts at each centralized with respect to the heating system.

  • Page 10: Water Piping And Controls

    WATER PIPING AND CONTROLS 3. WATER PIPING AND CONTROLS 3. Supply Piping: A. BOILER SUPPLY AND RETURN Pipe the supply to the 1-1/2 NPT supply tapping at the top and rear of the boiler. 1. Size the supply and return to suit the system. A typical piping arrangement is shown in Figure 3.1.

  • Page 11: Safety Relief Valve

    WATER PIPING AND CONTROLS 6. Install this boiler so that the gas ignition system components are protected from water (dripping, spraying, etc.) during appliance operation and service (circulator replacement, condensate trap, control replacements, etc.). 7. If this boiler and distribution system is used in conjunction with a refrigeration system, pipe the chilled medium in parallel with the boiler and install the proper valve to prevent the chilled medium from...

  • Page 12: Piping For Zoned Systems

    WATER PIPING AND CONTROLS C. PIPING FOR ZONED SYSTEMS 1. See Figures 3.5 and 3.6 for basic zoned system layouts. 2. Run each zone pipe down then up to zone to prevent air accumulation in piping. 3. If required, provide means to isolate and drain each zone separately.

  • Page 13: Expansion Tank

    WATER PIPING AND CONTROLS D. EXPANSION TANK FREEZE PROTECTION For new or existing systems that must be freeze- 1. Consult the tank manufacturer’s instructions for protected: specific information relating to tank installation. Size the expansion tank for the required system volume WARNING and capacity.

  • Page 14: Venting

    VENTING 4. VENTING A. INTEGRAL DRAFT HOOD B. VENT DAMPER INSTALLATION – GENERAL 1. The MI/MIH II™ boiler is equipped with a built-in draft hood. This device is designed to: 1. Do not use one vent damper to control two or more heating appliances.

  • Page 15: Vent Piping And Chimney

    VENTING 4. Before connection of joints, inspect the vent pipe C. VENT PIPING AND CHIMNEY interior for foreign objects such as tools, equipment, rags, etc. and remove if present. 1. Install vent piping in accordance with Venting of Equipment part of the National Fuel Gas Code, 5.

  • Page 16: Boiler Removal From Common Venting System

    VENTING d. Place in operation the appliance being inspected. D. BOILER REMOVAL FROM COMMON Follow the lighting instructions. Adjust thermostat so VENTING SYSTEM appliance will operate continuously. At the time of removal of an existing boiler, follow these Mettre en service l’appareil à inspecter. Suivre les steps with each appliance remaining connected to the instructions concernant l’allumage.

  • Page 17: Gas Piping

    GAS PIPING 5. GAS PIPING 1. Size and install the gas supply piping properly in order to provide a supply of gas sufficient to meet the maximum demand without undue loss of pressure between the meter and the boiler. 2. Determine the volume of gas to be provided to the boiler in cubic feet per hour.
  • Page 18 GAS PIPING Table 5.1: MI™ Boiler – Natural Gas Input Model Cubic Feet / Hour Cubic Meters / Hour MI-03 MI-04 MI-05 MI-06 MI-07 MI-08 227.5 MI-09 Table 5.2: MI™ Boiler – LP Gas Input Model Cubic Feet / Hour Cubic Meters / Hour MI-03 MI-04...

  • Page 19: Electrical

    ELECTRICAL 6. ELECTRICAL Install all electrical wiring in accordance with the National Electrical Code and local requirements. NOTICE This unit when installed must be electrically grounded in accordance with the requirements of the authority having jurisdiction or, in the absence of such requirements, with the current edition of the National Electrical Code , ANSI/NFPA 70 and/or the Canadian Electrical Code , Part 1 CSA C22.1, Electrical Code.
  • Page 20 ELECTRICAL...
  • Page 21 ELECTRICAL...

  • Page 22: Sequence Of Operation

    ELECTRICAL D. SEQUENCE OF OPERATION Figure 6.4: Intermittent Ignition System Operating Sequence...

  • Page 23: Start-Up Procedures

    START-UP PROCEDURES 7. START-UP PROCEDURES A. COMPLETING THE INSTALLATION 1. Confirm that all water, gas and electricity are turned off. 2. Inspect the boiler combustion chamber for foreign objects and remove if present. 3. Check physical condition of burners and pilot. Make certain that there are no unusual bends or perforations in the burners or pilot.
  • Page 24 START-UP PROCEDURES Figure 7.3: Operating Instructions...
  • Page 25 START-UP PROCEDURES Figure 7.4: Operating Instructions...

  • Page 26: Control Descriptions

    START-UP PROCEDURES B. CONTROL DESCRIPTIONS D. CHECKING BURNER INPUT See Figure 6.1 in Section 6 (Electrical) for locations of 1. Refer to rating label mounted on the jacket top panel these devices. to obtain the rated BTU per hour input. In no case shall the input to the boiler exceed the value shown 1.

  • Page 27: Check-Out Procedure

    START-UP PROCEDURES Table 7.1b: Meter Conversion – Natural Gas 3. Low Water Cut-Off (if used) – Consult the (SI Metric Units) manufacturer’s instructions for the low water cut-off operational check procedure. Burner inputs in kW for for various meter timings and heat values.

  • Page 28: Troubleshooting

    TROUBLESHOOTING 8. TROUBLESHOOTING DANGER A. SHUT-DOWN CAUSED BY PILOT OUTAGE, BLOCKED VENT SHUT-OFF When servicing or replacing items that communicate SWITCH OR FLAME ROLL-OUT SAFETY with the boiler water, be certain that: SHUT-OFF SWITCH There is no pressure on the boiler. ●...
  • Page 29 TROUBLESHOOTING Table 8.1: Boiler Troubleshooting Guide PROBLEM POSSIBLE CAUSES CORRECTIVE ACTIONS Burners not functioning. 1. No power. 1. Check line voltage wiring and fuses. 2. Limit not working. 2. Check wiring and contacts, relay, temperature setting. Clean and adjust as necessary. 3.
  • Page 30 TROUBLESHOOTING START BEFORE TROUBLESHOOTING, NOTE: “CALL FOR HEAT” 24 VAC SUPPLY IS CONNECTED TO THE 24 V TERMINAL ON THE CONTROL. FAMILIARIZE YOURSELF WITH THE STARTUP AND CHECKOUT PROCEDURES. TURN GAS SUPPLY OFF, TURN THERMOSTAT (CONTROLLER) TO “CALL FOR HEAT.” CHECK LINE VOLTAGE POWER, LOW VOLTAGE TRANSFORMER, LIMIT CONTROLLER, THERMOSTAT (CONTROLLER), AND WIRING ALSO.

  • Page 31: Maintenance

    MAINTENANCE 9. MAINTENANCE WARNING Product Safety Information Refractory Ceramic Fiber Product This appliance contains materials made from refractory ceramic fibers (RCF). Airborne RCF, when inhaled, have been classified by the International Agency for Research on Cancer (IARC), as a possible carcinogen to humans. After the RCF materials have been exposed to temperatures above 1800°F (980°C), they can change into crystalline silica, which has been classified by the IARC as carcinogenic to humans.

  • Page 32: General

    MAINTENANCE A. GENERAL D. MONTHLY (WITH BOILER IN USE) 1. Disconnect this boiler from the gas supply piping 1. Check boiler room floor drains for proper during any pressure testing of the gas system. functioning. 2. Check pipes adjacent to cold walls or in unheated 2.
  • Page 33 MAINTENANCE c. Remove burners and brush orifice spuds lightly using a soft bristle brush. d. Remove the vent pipe, vent damper, top jacket panels and flue collector/draft diverter. Remove baffles on MIH II™ models. e. Brush flueways with wire brush. f.

  • Page 34: Boiler Dimensions & Ratings

    BOILER DIMENSIONS & RATINGS 10. BOILER DIMENSIONS & RATINGS Figure 10.1: Boiler Views Table 10.1: Series MI/MIH II™ Boiler Dimensions SERIES MI/MIH II™ BOILER DIMENSIONS Jacket Rear of Jacket Left of Jacket Vent Size Length (Depth) Width Height to c/l of Vent to c/l of Vent Diameter Boiler...

  • Page 35: Repair Parts

    REPAIR PARTS 11. REPAIR PARTS REPAIR PARTS SERIES MI/MIH II™ GAS BOILER Repair parts are available from your local PB Heat, LLC distributor or from Parts To Your Door at 1 (610) 916-5380 (www.partstoyourdoor.com). Note: Remember to include the boiler model number and serial number when ordering parts. Figure 11.1: Base/Combustible Floor Pan Table 11.1: Base/Combustible Floor Pan Quantity...

  • Page 36: Manifold, Gas Valve & Pilot

    REPAIR PARTS Figure 11.2: Manifold Figure 11.3: Gas Valve and Pilot (Intermittent Ignition)
  • Page 37 REPAIR PARTS Table 11.2: Manifold, Gas Valve and Pilot Quantity Stock Description Required Code Steel Burner – MI-03 51537 Steel Burner – MI-04 51537 Steel Burner – MI-05 51537 Steel Burner – MI-06 51537 Steel Burner – MI-07 51537 Steel Burner – MI-08 51537 Steel Burner –...

  • Page 38: Block/Draft Hood & Jacket

    REPAIR PARTS Figure 11.4: Block/Draft Hood Figure 11.5: Jacket...
  • Page 39 REPAIR PARTS Table 11.3: Block/Draft Hood & Jacket Quantity Stock Description Required Code Block Assembly – MI-03 – 90419 Block Assembly – MI-04 – 90420 Block Assembly – MI-05 – 90421 Block Assembly – MI-06 – 90422 Block Assembly – MI-07 –...

  • Page 40: Controls/Circulator/Vent & Damper

    REPAIR PARTS Figure 11.6: Controls/Circulator/Vent Damper...
  • Page 41 REPAIR PARTS Table 11.4: Controls/Circulator/Vent Damper Quantity Stock Description Required Code Limit Beckett 7600B – 50335 Well Beckett 7600TW03B – 50341 Sensor Beckett 7600P06B – 50339 Limit w/ Sensor Hydrolevel 3200 – 50334 Well Hydrolevel 48-201 – 50723 Temperature-Pressure Gauge –...
  • Page 42 NOTES...
  • Page 43 Series MI/MIH ™ Boilers I n s t a l l a t i o n , O p e r a t i o n & M a i n t e n a n c e M a n u a l TO T H E I N S TA L L E R : This manual is the property of the owner and must be affixed near the boiler for future reference.

This manual is also suitable for:

Mih ii seriesMi-03Mih ii-03Mi-04Mih ii-04Mi-05 ... Show all

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