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Boiler
Munchkin
399M
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MAINTENANCE
Contents
Main
Installing, Operating & Maintaining
MUNCHKIN HIGH EFFICIENCY 399M COMMERCIAL BOILER
SPECIAL ATTENTION BOXES
WARNINGS
USING THIS MANUAL
DANGER
WARNING
CAUTION
CAUTION
TABLE OF CONTENTS
GENERAL INFORMATION
PERFORMANCE RATING CONNECTION SIZES RECOMMENDED SERVICE CLEARANCES
PART 1. GENERAL INFORMATION
Page
PART 2. ELECTRICAL
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PART 3. GAS CONNECTION
Failure to follow all precautions could result in fire, explosion or death!
ELECTRICAL / GAS CONNECTION
GREEN (GROUND)
BROWN (NEUTRAL)
GAS CONNECTION
Failure to follow all precautions could result in fire, explosion or death!
GAS CONNECTION
PART 4. VENTING
Foam Core Pipe is not to be used in connecting the exhaust pipe.
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The Munchkin is not intended to be common vented with any other existing appliance!
DIAGRAMS FOR SIDEWALL VENTING
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VENTING / PIPING
PART 5. PIPING
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Piping Symbol Legend
D. PIPING ILLUSTRATIONS
Fig. 5-2
Standard Munchkin boiler Retrofit piping (zoning with valves) Space heating mode
P1
Fig. 5-3
V1
Drawing 1A
Standard Munchkin boiler Retrofit piping (zoning with valves) Domestic water heating mode
P1
Fig. 5-4
V1
Drawing 1B
Preferred piping (zoning with valves) Space heating mode
Drawing 2A
Fig. 5-5
V1
Preferred piping (zoning with valves) Domestic water heating mode
Drawing 2B
Fig. 5-6
V1
Preferred piping (zoning with circulators) Space heating mode
Drawing 2C
Fig. 5-7
Preferred piping (zoning with circulators) Domestic water heating mode
Drawing 2D
Fig. 5-8
Fig. 5-9
NOTES:
Drawing 2E
PB2
PB1
P2
NOTES:
Drawing 2F
PB2
PB1
P2
PART 6. START-UP PROCEDURES
FOR YOUR OWN SAFETY READ BEFORE OPERATING
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PART 7. SERVICING
START-UP PROCEDURES / SERVICING
Fig. 6-1
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RESISTANCE TABLES
MAINTENANCE
PART 8. MAINTENANCE
MAINTENANCE