Freestyle 2 Series - Page 68

Part number 550-142-950/0122
68
FreeStyle
®
series 2 wall mount gas-fired water boiler – boiler manual
Figure 95 DHW curve - FreeStyle 120
28 DHW Settings (Combi Only) (continued)
Figure 96 DHW curve - FreeStyle 155
e “D” Parameter codes below are part of the normal Control Operation and typically appear during Start Up.
is a “Timed” or “Auto Recycle” event.
• 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 Cen-
tral Heating still applied by the T-Stat to the boiler. Circulators will continue to operate and the boiler is
monitoring the two internal water sensors (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/restart boiler operation.
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.
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Freestyle 120 - DHW PRODUCTION
Freestyle 120
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Freestyle 155 - DHW PRODUCTION
Freestyle 155
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