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MI/MIH series manual Gas Boilers, Installation Operation & Maintenance Manual
Models:
MI/MIH series
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Troubleshooting
Install
Repair Parts
Dimension
Maintenance
A. Wiring
Problem
1 Gas Valve, Manifold and Burner Assembly - Standing Pilot Continuous Ignition
Start-Upprocedures
C.Adjustment Of Gas Pressure Regulator
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Series
MI/MIH
Gas
Boilers
Installation,
Operation &
Maintenance
Manual
Page 2
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Contents
Gas Boilers
Installation Operation & Maintenance Manual
Series MI/MIH
TABLE OF CONTENTS
TABLE OF CONTENTS
USING THIS MANUAL
USING THIS MANUAL
DANGER
A.INSTALLATION SEQUENCE
PREINSTALLATION
1. PREINSTALLATION
A.ACCESSIBILITY CLEARANCES
B.CLEARANCE FROM COMBUSTIBLE CONSTRUCTION
Figure 1.3 Air Openings - All Air Directly from
PREINSTALLATION
where
PREINSTALLATION
D.INSTALLATION SURVEY
PREINSTALLATION
E.PLANNING THE LAYOUT
BOILER SET-UP
2.BOILER SET-UP
WATER PIPING AND CONTROLS
3. WATER PIPING AND CONTROLS
A.BOILER SUPPLY AND RETURN
Figure 3.3 Safety Relief Valve Hook-Up
B. SAFETY RELIEF VALVE
Installation with Air Elimination in
Figure 3.4 Safety Relief Valve Hook-Upwith
C.PIPING FOR ZONED SYSTEMS
WATER PIPING AND CONTROLS
Figure 3.5 Zone Piping with Zone Valves
Figure 3.6 Zone Piping with Circulators
D.EXPANSION TANK
WATER PIPING AND CONTROLS
E.INDIRECT-FIREDWATER HEATER
F.FREEZE PROTECTION
VENTING
4. VENTING
B.VENT DAMPER INSTALLATION - GENERAL
A.INTEGRAL DRAFT HOOD
C.VENT PIPING AND CHIMNEY
VENTING
D.BOILER REMOVAL FROM COMMON VENTING SYSTEM
VENTING
GAS PIPING
5.GAS PIPING
Table 5.1 MI Boiler - Natural Gas
GAS PIPING
Table 5.2: MI Boiler – LP Gas
Table 5.3 MIH Boiler - Natural Gas
ELECTRICAL
6. ELECTRICAL
A. WIRING
B.ZONED SYSTEM WIRING
D.SEQUENCE OF OPERATION
ELECTRICAL
2. Intermittent Ignition see Figure 6.3 above
ELECTRICAL
ELECTRICAL
Figure 6.6 Zone Wiring with Circulators
Figure 6.5 Zone Wiring with Zone Valves
ELECTRICAL
START-UPPROCEDURES
7. START-UPPROCEDURES
A.COMPLETING THE INSTALLATION
Figure 7.1 Gas Valve, Manifold and Burner Assembly - Standing Pilot Continuous Ignition
START-UPPROCEDURES
Figure 7.4 Operating Instructions
START-UPPROCEDURES
START-UPPROCEDURES
FOR YOUR SAFETY READ BEFORE LIGHTING
LIGHTING INSTRUCTIONS
TO TURN OFF GAS TO APPLIANCE
C.ADJUSTMENT OF GAS PRESSURE REGULATOR
START-UPPROCEDURES
D.ADJUSTMENT OF PILOT GAS FLOW
B.CONTROL DESCRIPTIONS
F.CHECK-OUTPROCEDURE
START-UPPROCEDURES
E.CHECKING BURNER INPUT
b.Intermittent Ignition System
START-UPPROCEDURES
TROUBLESHOOTING
8. TROUBLESHOOTING
B.TROUBLESHOOTING GUIDES
DANGER
TROUBLESHOOTING
PROBLEM
Table 8.1 Boiler Troubleshooting Guide
POSSIBLE CAUSES
TROUBLESHOOTING
MAINTENANCE
9. MAINTENANCE
A.GENERAL
MAINTENANCE
B.DAILY WITH BOILER IN USE
C.WEEKLY WITH BOILER IN USE
The boiler is at room temperature
MAINTENANCE
DANGER
E.ANNUALLY BEFORE START OF HEATING SEASON
BOILER DIMENSIONS & RATINGS
10. BOILER DIMENSIONS & RATINGS
SERIES MI/MIH BOILER DIMENSIONS
SERIES MI/MIH BOILER RATINGS
REPAIR PARTS
11. REPAIR PARTS
REPAIR PARTS SERIES MI/MIH GAS BOILER
Figure 11.2 Manifold
REPAIR PARTS
Figure 11.3a
REPAIR PARTS
Gas Valve and Pilot - Standing Pilot
Figure 11.3b Gas Valve and Pilot - Intermittent
Figure 11.4 Block/Draft Hood
REPAIR PARTS
Table 11.4a Block/Draft Hood
Table 11.4b Flue Baffles for MIH Only
Figure 11.5 Jacket Table 11.5 Jacket
REPAIR PARTS
Figure 11.6 Controls/Circulator/Vent Damper
REPAIR PARTS
Table 11.6 Controls/Circulator/Vent Damper
TO THE INSTALLER
Installation Operation & Maintenance Manual
Qualified Service Agency
Series MI/MIH
