PEERLESS Series MI Installation, Operation & Maintenance Manual
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Summary of Contents for PEERLESS Series MI
- 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...
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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
Do not install this boiler on carpeting. Boiler appliances other than fan assisted and for the installation on carpeting is a fire hazard. Install this Series MI ™ Boiler shall be determined as follows: boiler on non-combustible flooring or use a combustible floor pan to install this boiler on other ⎛... - Page 5 PREINSTALLATION where: = Input of appliances other than fan other assisted in Btu/hr ACH = air change per hour (percent of the volume of the space exchanged per hour, expressed as a decimal) For fan assisted appliances, calculate the required volume of air using the following equation: ⎛...
- Page 6 PREINSTALLATION Figure 1.4: Air Openings – All Air from Outdoors through Vertical Ducts Figure 1.6: Air Openings – All Air from Outdoors through One Opening ii. Where communicating with the outdoors through horizontal ducts, each opening shall 5. Combination Indoor and Outdoor Combustion Air: have a minimum free area of 1 in per 2000 If the required volume of indoor air exceeds the...
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Page 7: Installation Survey
PREINSTALLATION c. Each of the appliances served shall be e. Ducts shall not be screened where terminating in interlocked to the mechanical air supply to an attic space. prevent main burner operation when the mechanical air supply system is not in operation. f. -
Page 8: 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 9: 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 10: 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 11: 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 12: 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 13: Venting
VENTING 4. VENTING A. INTEGRAL DRAFT HOOD B. VENT DAMPER INSTALLATION – GENERAL 1. The MI/MIH ™ 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 14: 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, ANSI 5. -
Page 15: 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 e. Test for spillage at the draft hood relief opening after steps with each appliance remaining connected to the 5 minutes of main burner operation. -
Page 16: 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 17 GAS PIPING Table 5.1: ™ 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: ™ Boiler – LP Gas Input Model Cubic Feet / Hour Cubic Meters / Hour MI-03 MI-04...
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Page 18: 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 19: Sequence Of Operation
ELECTRICAL Figure 6.2: Wiring and Connection Diagram – Standing Pilot (Continuous Ignition) Pilot flame is monitored through the pilot D. SEQUENCE OF OPERATION thermocouple. If pilot flame is lost during a call for heat, main and pilot gas flow will be shut off. 1. - Page 20 ELECTRICAL Figure 6.3: Wiring and Connection Diagram – Intermittent Ignition the blocked vent switch is closed, and 2. Intermittent Ignition (see Figure 6.3 above) ● the flame rollout switch is closed. ● a. The vent damper is continuously powered. On a call for heat, limit relay R is energized, which c.
- Page 21 ELECTRICAL Figure 6.4: Intermittent Ignition System Operating Sequence...
- Page 22 Figure 6.5: Zone Wiring with Zone Valves Figure 6.6: Zone Wiring with Circulators...
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Page 23: Start-Up Procedures
START-UP PROCEDURES 7. START-UP PROCEDURES 8. Connect a manometer to the gas valve on the valve A. COMPLETING THE INSTALLATION outlet (gas manifold). Use the 1/8 NPT tapping provided. 1. Confirm that all water, gas and electricity are turned off. 9. - Page 24 START-UP PROCEDURES Figure 7.1: Gas Valve, Manifold and Burner Assembly – Standing Pilot (Continuous Ignition) Figure 7.2: Gas Valve, Manifold and Burner Assembly – Intermittent Ignition Figure 7.3: Valve Tapping and Adjustment Screw Locations...
- Page 25 START-UP PROCEDURES Figure 7.4: Operating Instructions...
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Page 26: Lighting Instructions
START-UP PROCEDURES FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury, or loss of life. A. This appliance has a pilot which must be lighted by If you cannot reach your gas supplier, call the fire hand. -
Page 27: Control Descriptions
START-UP PROCEDURES 4. When adjustment is complete, turn off boiler, gas B. CONTROL DESCRIPTIONS flow and electricity to boiler. Remove manometer See Figure 6.1 in Section 6 (Electrical) for locations of connection from valve and plug tapping with plug these devices. provided. -
Page 28: Checking Burner Input
START-UP PROCEDURES Table 7.1b: Meter Conversion – Natural Gas E. CHECKING BURNER INPUT (SI Metric Units) 1. Refer to rating label mounted on the jacket top panel Burner inputs in kW for for various meter timings and to obtain the rated BTU per hour input. In no case heat values. - Page 29 START-UP PROCEDURES b. Intermittent Ignition System: 5. Check the expansion tank and automatic fill valve (if used) to confirm that they are operating correctly. If i) Turn gas supply off. either of these components causes high pressure in the system, the boiler relief valve will weep or open, ii) Set thermostat or controller above room allowing fresh water to enter the system.
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Page 30: 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 31 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 (Aquastat) not working. 2. Check wiring and contacts, relay, temperature setting. Clean and adjust as necessary. 3.
- Page 32 TROUBLESHOOTING Figure 8.1: Intermittent Ignition System Troubleshooting Sequence...
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Page 33: 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 34: General
4. Check for water leaks in boiler and system piping. A. GENERAL 5. Smell around the appliance area for gas. If you smell 1. Disconnect this boiler from the gas supply piping gas, follow the procedure listed in the during any pressure testing of the gas system. Lighting/Operating Instructions in Section 7. -
Page 35: Annually (Before Start Of Heating Season)
MAINTENANCE E. ANNUALLY (BEFORE START OF HEATING SEASON) DANGER When servicing or replacing components, be absolutely certain that the following conditions are met: Water, gas and electricity are off. ● The boiler is at room temperature. ● There is no pressure in the boiler. ●... -
Page 36: Boiler Dimensions & Ratings
BOILER DIMENSIONS & RATINGS 10. BOILER DIMENSIONS & RATINGS Figure 10.1:Boiler Views Table 10.1: Series MI/MIH Boiler Dimensions SERIES MI/MIH BOILER DIMENSIONS Jacket Boiler Left of Jacket to Rear of Jacket to Vent Connector Width Depth To Floor Model c/l of Vent “D”... -
Page 37: Repair Parts
BOILER DIMENSIONS & RATINGS 11. REPAIR PARTS REPAIR PARTS SERIES MI/MIH ™ GAS BOILER Repair parts are available from your installer or by contacting PB Heat, LLC, 131 S. Church St., Bally, PA 19503. Use the figures and tables on pages 35-41 to assist in ordering parts. -
Page 38: Manifold, Gas Valve & Pilot
REPAIR PARTS Figure 11.2: Manifold Figure 11.3a: Gas Valve and Pilot – Standing Pilot (Continuous Ignition) Figure 11.3b: Gas Valve and Pilot (Intermittent Ignition) - Page 39 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 –...
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Page 40: Block/Draft Hood & Jacket
REPAIR PARTS Figure 11.4: Block/Draft Hood Figure 11.5: Jacket... - Page 41 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 –...
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Page 42: Controls/Circulator/Vent Damper & Conversion Kits
REPAIR PARTS Figure 11.6: Controls/Circulator/Vent Damper... - Page 43 REPAIR PARTS Table 11.4: Controls/Circulator/Vent Damper & Conversion Kits Quantity Stock Description Required Code Honeywell L8148E-1182 Limit w/ 3/4" Well – 51689 Temperature-Pressure Gauge – 51324 Safety Relief Valve, 30 PSI, Conbraco 10-408-05 – 50501 Safety Relief Valve, 50 PSI, Watts #350 –...
- Page 44 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.
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Questions and answers
not enough heat
The PEERLESS Series MI boiler may not be producing enough heat due to several possible reasons:
1. Pilot Flame Issues – The pilot flame may not be steady and blue or may not be properly covering the flame rod. Adjusting the pilot flame may be necessary.
2. Gas Pressure Problems – The gas pressure may not be meeting appliance specifications while the main burner and other gas appliances are operating. Checking and adjusting gas pressure could help.
3. Thermostat Malfunction – The thermostat (controller) may not be functioning correctly. Checking thermostat operation is recommended.
4. Gas Valve Issues – If the gas control valve does not close properly when the MV lead is removed, it may need to be replaced.
5. Poor Grounding – If the ground connection is poor or erratic, the system may experience occasional shutdowns. Improving grounding could resolve the issue.
Following the troubleshooting steps in the manual can help identify and fix the problem.
This answer is automatically generated