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GAS-FIRED HEATER Installation Manual
CONTENTS
(CONT’D)
F. Exhaust Vent and Intake Air Pipe Installation.
G. Heater Removal from a Common Vent System
H. Condensate Removal System
I. Diagrams for Side Wall Venting
Part 8 – Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45,46
A. Gas Connection
B. Gas Piping
C. Gas Table
D. Dungs Gas Valve
Part 9 – Field Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47-49
A. Installation Must Comply With
B. Field Wiring
C. Line Voltage Wiring
D. Thermostat
Part 10 – Field Wiring – Vision 1 Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Part 11 – Start Up Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51-53
A. Check/Control Water Chemistry
B. Freeze Protection (when used)
C. Fill and Test Water System
D. Purge Air from Water System
E. Check for Gas Leaks
F. Check Thermostat Circuit(s)
G. Condensate Removal
H. Final Checks Before Starting The Munchkin Contender
Part 12 – Start-Up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53-55
A. Operating Instructions
B. Adjusting the Set Point
C. Status Menu
D. Test Mode
Part 13 – Start-Up Procedures With The Vision 1 Option . . . . . . . . . . . . . . . . . . . . . . 55-56
A. Programming the Vision I Option
B. Vision I Program Access
C. Vision I Program Navigation
Part 14 – Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59-61
A. Munchkin Error Code
B. Heater Error
C. Heater Fault
Part 15 – Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61-65
A. Maintenance Procedures
B. Combustion Chamber Coil Cleaning Instructions
Part 16 – Heater Inspection and Maintenance Start-Up Charts . . . . . . . . . . . . . . . . . 66-68