CONTENTS ........................................................................ 2
Boiler water ................................................................... 4
Boiler Piping ....................................................................... 6
Control Inputs ............................................................... 8
Control Outputs ............................................................. 9
Table 1A - Sequence of Operation .................................. 12
Table 1B - Parameter Table ........................................ 13-17
Cascade Screen ............................................................... 26
Graph Screen ................................................................... 27
History Screen ............................................................. 28-29
Service Screen ................................................................. 30
Hazard definitions
The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or
to important information concerning the life of the product.
DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious
DANGER
injury.
WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious
WARNING
injury.
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
CAUTION
injury.
CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not
CAUTION
avoided, may result in property damage.
NOTICE indicates special instructions on installation, operation, or maintenance that are important but not
NOTICE
related to personal injury or property damage.
2
Contents
Table 3A - Troubleshooting Chart - No Display ............... 38
Table 3F - Troubleshooting Chart - Noisy System .......... 40
Table 3G - Troubleshooting Chart - Fault Messages . 41-51
Table 3H - Troubleshooting Chart - Combustion Levels 52
Table 3I - Flue Products ................................................... 52
Revision Notes .................................................. Back Cover