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MIH
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Zone Wiring with Zone Valves
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MIH
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Troubleshooting
Install
Repair Parts
Wiring Controls
Dimension
Maintenance
Accessibility Clearances
START-UP Procedures
Adjustment of Pilot GAS Flow
Safety
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ELECTRICAL
Figure 6.5: Zone Wiring with Zone Valves
Figure 6.6: Zone Wiring with Circulators
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Contents
Series MI/MIH
Table of Contents
Installation Sequence
Using this Manual
Special Attention Boxes
Clearance from Combustible Construction
Preinstallation
Accessibility Clearances
AIR for Combustion and Ventilation
Air Openings All Air from Indoors on Different Floors
Air Openings All Air from Outdoors through Vertical Ducts
Installation Survey
Planning the Layout
Boiler SET-UP
Water Piping and Controls
Boiler Supply and Return
Safety Relief Valve
Parallel Hook-Up with Water Chiller
Piping for Zoned Systems
Zone Piping with Zone Valves
INDIRECT-FIRED Water Heater
Expansion Tank
Freeze Protection
Venting
Vent Damper Installation General
Integral Draft Hood
Vent Piping and Chimney
Venting with Vent Damper in Vertical Position
Boiler Removal from Common Venting System
Seal any unused openings in the common venting system
GAS Piping
Gas Connection to Boiler
MIH Boiler Natural Gas
Zoned System Wiring
Wiring Controls
Electrical
Sequence of Operation
Wiring and Connection Diagram Intermittent Ignition
Intermittent Ignition System Operating Sequence
Zone Wiring with Zone Valves
START-UP Procedures
Completing the Installation
Valve Tapping and Adjustment Screw Locations
Operating Instructions
For Your Safety Read Before Lighting
Adjustment of Pilot GAS Flow
Adjustment of GAS Pressure Regulator
Control Descriptions
CHECK-OUT Procedure
Checking Burner Input
START-UP Procedures
Troubleshooting
Troubleshooting Guides
Problem Possible Causes Corrective Actions
Intermittent Ignition System Troubleshooting Sequence
Maintenance
Weekly with Boiler in USE
General
Daily with Boiler in USE
Monthly with Boiler in USE
Annually Before Start of Heating Season
Standing Pilot and Main Burner Flame
Boiler Dimensions & Ratings
Series MI/MIH Boiler Dimensions
Repair Parts
Repair Parts Series MI/MIH GAS Boiler
2Manifold 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
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Contents