Cycling issues
Issue
Diagnosis
Fix
to improper piping.
Low water flow due
to undersized
pump.
Check manufacturer’s rating charts/check temperature differential
across heat exchanger.
Low water flow due
to restrictions in
water pipe.
Check temperature differential across zone/heat exchanger.
Low radiation.
Check actual amount of radiation per zone and refer to
manufacturer’s rating tables.
Appliance over-
fired.
Clock gas meter/check gas pressure with manometer/ check CO
2
level.
Appliance
Oversized.
Check load calculation vs. minimum boiler output.
Improperly set or
defective controls.
Check operation with ohmmeter/voltmeter.
100
Section: Troubleshooting
Содержание SL SERIES
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Страница 105: ...101 Appendices Wiring diagrams V 10 Controller electrical diagram Figure 52 Controller electrical diagram...
Страница 106: ...Internal wiring diagram Figure 53 Internal wiring diagram 102 Section Appendices...
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Страница 109: ...105 Exploded views of boiler parts...
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Страница 118: ...Item Description Part Quantity 200 Fan Coupler 250 749 P 347 1 205 Fan Coupler O ring 150 254 1 114 Section Appendices...
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