User Guide

Part number 550-100-325/0718
102
AquaBalance
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SERIES 2 WALL MOUNT GAS-FIRED WATER BOILER — Boiler Manual
Figure 131 Troubleshooting suggestions for AquaBalance
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boilers — Fault displays and diagnostics (continued)
34 Troubleshooting (continued)
Category E2 prom parameters Unit Range Def
Description
Num. Address Description Low High Value
Central Heating 47 constant CH P factor num 12
Central Heating 48 constant CH I factor num 245
Central Heating 49 ML – 8138 Pre-purge time in CH mode Sec 0 255 0
Central Heating 50 CL5 – 063B CH maximum output % 0 100 100
Central Heating 51 CL5 – 05AE CH OFF time Min 0 10 2
Central Heating 52 CL5 – 05C7 CH pump over-run time Min 0 255 15
Central Heating 53 CL5 – 059D CH pump selection Num 0 7 0
Central Heating 54 CL5 – 0592 CH slope control °F/min 1 20 11
Central Heating 55 CL5 – 055E OTC curve selection Num 0 10 0
Central Heating 56 CL5 – 0562 OTC temperature offset °F 68 104 86
Central Heating 58 ML – 811A Summer/Winter function Num 0 1 1
Central Heating 59 ML – 8129 CH hysteresys after burner ignition °F 11 54 18
Central Heating 60 ML – 8120 CH hysteresys after burner ignition timer Sec 60 180 60