Freestyle 2 Series - Page 110

Part number 550-142-950/0122
110
FreeStyle
®
series 2 wall mount gas-fired water boiler – boiler manual
37 Troubleshooting (continued)
Figure 139 Troubleshooting suggestions for FreeStyle
®
boilers — Fault displays and diagnostics (continued)
Some informations can be accessed with a communication package running on the PC.
Category E2 prom parameters Unit
Description
Num. Address Description
Boiler 1 CL4 – A532 CH supply sensor1 temperature °F *10
Boiler 2 CL4 – A567 CH supply sensor2 temperature °F *10
Boiler 3 CL4 – A55B CH return sensor temperature °F *10
Boiler 4 CL4 -A53D DHW sensor temperature °F *10
Boiler 5 CL4 -A568 Exhaust sensor temperature °F *10
Boiler 6 CL4 -1110 Water pressure sensor Psi *10
Boiler 7 CL4 -A554 Outside temperature sensor °F *10
Boiler 8 CL4 -0FAB MSB Control water set point °F
Boiler 9 CL4 -FC02 MSB CH Virtual set point °F
Boiler 10 CL4 -FC02 LSB DHW Virtual set point °F
Boiler 11 CL4 – 11DC MSB Fan speed -Setpoint Hz
Boiler 12 CL4 – 11DC LSB Fan speed -Feedback Hz
Boiler 13 CL4 – 0364 Flame current uA *10
Boiler 14 CL4 – FAFB MSB PWM modulating pump %
Boiler 15 CL4 – FAFB LSB Step of Triac modulating pump Num
Boiler 16 CL4 – 0F0E DHW ow sensor Hz
Boiler 17 ML -F68B DHW over-temp_burnerOFF-initially_Temperature °F
OpenTherm 18 CL4 – FAF4 MSB OT room setpoint °F Int
OpenTherm 19 CL4 – FAF4 LSB OT room setpoint °F Dec
OpenTherm 20 CL4 – FAC8 MSB OT room temp °F Int
Parameter Description
D1
After cycle of Domestic water mode, D1 will be displayed.
D2
When required boiler water set - point is reached D2 will be displayed.
D3
After an attempt for ignition, re-trial ignition delay is in effect (D3 is displayed).
* Check for proper fuel supply.
* Remove and check ignitor for proper gap, 5/32”, replace if disgured, check combustion setting Natural gas or LP.
* Insure condensate is draining properly.
* Insure venting size and length are correct and unobstructed.
• D1….the boiler is / has nished the call for Domestic Water heating, and is in the transition to either standby mode or
central heating mode.
• D2….the boiler has reached the required water set point, and the ring has stopped / with a call for Central Heating still
applied by the T-Stat to the boiler. Pumps will continue to operate and the boiler is monitoring the two internal water sen-
sors (return & discharge) waiting for a water “Delta-T” to return…at that time the boiler will re-re if need be
• D3….the boiler has made 3 tries for ignition and has failed to ignite. A re-trial ignition cycle / delay is in eect for 3 more
tries to ignite.