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Boiler
Munchkin
Gas-Fired Hot Water Boiler
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MAINTENANCE NOTES
Contents
Main
Page
CONTENTS
Page
PART 1: PRODUCT AND SAFETY INFORMATION
Before Installing
Page
PART 2: HOW BOILER OPERATES
PART 3: PREPARE BOILER LOCATION
INCORRECT CORRECT
7
T50M/T80M
DIMENSIONS
PERFORMANCE RATINGS
CONNECTION SIZES
FAN SPEEDS
Page
NOTICE
Precautions
Page
PART 4: PREPARE BOILER
PART 5: BOILER PIPING
Expansion tank and make-up water
Diaphragm (or bladder) expansion tank
Sizing space heat system piping
Page
Page
Page
Page
Piping Symbol Legend
M.BOILER PIPING DETAILS
Standard Munchkin boiler Preferred piping (zoning with valves) Space heating mode
P1
Drawing 2A
V1
NOTES:
Standard Munchkin boiler Preferred piping (zoning with valves) Domestic water heating mode
P1
Drawing 2B
V1
P2
Standard Munchkin boiler Preferred piping (zoning with circulators) Space heating mode
P2
P1
NOTES:
Drawing 2C
Standard Munchkin boiler Preferred piping (zoning with circulators) Domestic water heating mode
P2
P1
Drawing 2D
NOTES:
Drawing 2E
PB2
PB1
P2
NOTES:
Drawing 2F
PB2
PB1
P2
PART 6. BOILER PIPING WITH VISION I SYSTEM
D. BOILER PIPING DETAILS WITH THE VISION I SYSTEM
Munchkin VISION 1 system (zoning with valves) Space heating mode
purge
NOTES:
Drawing 3A
P1 P2
(zoning with valves) Domestic water heating mode
Drawing 3B
purge
Munchkin VISION 1 system (zoning with valves) Space heating mode (w/ submixing)
NOTES:
Drawing 3C
purge
P1 P2
Space heating mode
Drawing 4A
Munchkin VISION 1 system (zoning with circulators) Domestic water heating mode
NOTES:
Drawing 4B
P1 P2
purge
Space heating mode (w/ submixing)
Drawing 4C
purge
Space heating mode (3 fully reset supply temperatures)
Drawing 4E
purge
P2
Space heating mode (3 different supply temperatures)
Drawing 4F
purge
P2
P1 P2
Munchkin VISION 1 system Multiple high temperature priority loads controlled with zone valves
NOTES:
Drawing 4G
NOTES:
Drawing 4H
P1 P2
PART 7: VENTING, COMBUSTION AIR & CONDENSATE REMOVAL
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42
J. DIAGRAMS FOR SIDEWALL VENTING
Figure 7-9 Figure 7-10
AND COUPLING (EXHAUST)
SIDEWALL VENTING WITH TEE (INTAKE) AND COUPLING (EXHAUST)
SIDEWALL VENTING WITH TEE (INTAKE)
43
SIDWALL
1" MIN.
MUST BE FACING UP
Figure 7-11 Figure 7-12
K. DIAGRAMS FOR VERTICAL VENTING
RIGHT SIDE
VIEW
WHICHEVER IS GREATER
ALL HORIZONTAL
}
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PART 8: GAS PIPING
D. DUNGS GAS VALVE FOR T50/T80/80M/140M/199M
PART 9: FIELD WIRING
Page
Page
PART 10: FIELD WIRING VISION 1
PART 11. START-UP PREPARATION
Water pH between 6.0 and 8.0
Hardness less than 7 grains.
Chlorine concentration less than 200 ppm
Clean system to remove sediment
Page
PART 11. START-UP PREPARA TION
PART 12. START-UP PROCEDURE
FOR YOUR OWN SAFETY READ BEFORE OPERATING
WHAT TO DO IF YOU SMELL GAS
Page
PART 12. START-UP PROCEDURE
PART 13: START-UP PROCEDURES WITH THE VISION 1
PART 13: START-UP PROCEDURES WITH THE VISION 1
The Boiler cannot be programmed while there is a call for heat.
PART 13: START-UP PROCEDURES WITH THE VISION 1
NOTICE
PART 13: START-UP PROCEDURES WITH THE VISION 1 OPTION
PART 14: TROUBLESHOOTING
60
PART 14: TROUBLESHOOTING
F
Nc
PP
F33
PART 15: MAINTENANCE
Outside Temperature (F) Resistance (ohms)
Boiler and Indirect Temperature (F) Resistance (ohms)
PART 14: TROUBLESHOOTING
Page
T50M/T80M
T50M/T80M
REPLACEMENT PARTS
REPLACEMENT PARTS
SWITCH
T50M/T80M
T50M/T80M
BOILER
OUTLET
CONDENSATE
80M/140M/199M
Fig. 15-1
80M/140M/199M
Fig. 15-2
Page
Page
BOILER START UP REPORT
Light Off Activities
Date completed _______________
BOILER INSPECTION AND MAINTENANCE SCHEDULE
Date last completed
Inspection Activities
BOILER INSPECTION AND MAINTENANCE SCHEDULE
Date last completed
Inspection Activities