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7Part number 550-141-850/0699
• Installation • Start-Up • Parts • Maintenance
Contents
Contents Summary Pages
VII.Start-up • Determine water treatment needs, if any.
Obtain correct antifreeze if freeze protection required.
Check for gas leaks (have propane odorant verified by supplier).
Fill system and purge air.
Read Operating instructions, section IX, then start boiler.
Check all piping and verify leak-free.
Check gas valve outlet pressure (altitudes over 5,500 feet).
42 – 47
VIII.Check-out procedure Complete checklist and fill out certificate. 48 – 49
IX. Operation GCM (control module) indicator lights and sequence of opera-
tion.
Ladder wiring diagram (page 52).
Schematic wiring diagram (page 53).
Lighting instruction sheet — boiler with Robertshaw 7200DERN
gas valve (page 54).
Lighting instruction sheet — boiler with White-Rodgers 36E gas
valve (page 55).
50 – 55
X. Service and maintenance Service/maintenance schedule table (page 57).
Detailed instructions for annual start-up and service.
Special procedures for condensate drain line check valve (page
63, if needed) and cleaning boiler heating surfaces (page 64).
56 – 65
XI.Troubleshooting Troubleshooting procedures (page 67).
Checking air pressure switch (page 68).
Servicing tips and precautions — Igniter, gas valve and blower
housing (page 69).
Servicing tips and precautions plus indicator lights and lockout
modes of GCM (control module) (page 70).
Common problems and solutions (pages 72 and 73).
Troubleshooting based on GCM indicator lights (pages 74 – 81).
66 – 81
XII. Replacement parts Accessory bag assembly shipped with boiler (page 83).
Section assembly parts (page 84).
Jacket assembly parts (page 86).
Blower assembly parts (page 88).
Trim assembly parts (page 90).
Interior panel parts (page 92).
82 – 93
XIII.Dimensions and ratings Dimensional drawing and boiler rating table. 94 – 95