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Part number 550-142-850/0716
15
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WALL MOUNT GAS-FIRED WATER BOILER — Boiler Manual
4 Converting boiler to propane continued
4HEJACKETDOORMUSTBEINPLACEDURING
OPERATION
DO NOT operate the boiler with
THEJACKETDOORREMOVEDEXCEPTFORINSPECTION
and testing as directed in this manual.
Inspect the gas pipe fitting connections on the gas
valve and new venturi (Item 3, Figure 15) check the
SEALOFTHECONNECTIONS&AILURETOCOMPLYWILLCAUSEA
gas leak, resulting in severe personal injury or death.
 $ONOTCHECKFORGASLEAKSWITHANOPENmAMEUSE
BUBBLETEST&AILURETOUSEBUBBLETESTORCHECKFOR
gas leaks can cause severe personal injury, death or
substantial property damage.
6. Reinstall control module, reinstall screw to hold control mod-
ule securely in place.
7. Reinstall jacket door, and secure with two (2) screws.
Setup for normal operating sequence of ignition system.
8. Adjust parameter for the type of gas:
a. Put the boiler in standby mode.
b. Press the DHW buttons details 1 and 2 - Figure 74, page 60
FORSECONDSTHEDISPLAYSHOWShB“ flashing.
c. Press the DHW buttons Figure 74, page 60 details 1 and 2
TOSETPARAMETERFORUSEWITHNATURALGASOR 
FORUSEWITH,0
d. Press the Heating (+) button to scroll to Parameter “Bv.
 E0RESS$(7TOREDUCETHE-AXIMUM&AN3PEED,
see Figure 119, page 93:
s &ROMTOFORTHE&3BOILER
s &ROMTOFORTHE&3BOILER
s &ROMTOFORTHE&3BOILER
 F0RESSTHEBUTTONTOSCROLLTO0ARAMETERhBv.
g. Repeat Step “e” above according to your boiler size.
h. Press the Heating (+) button to scroll to Parameter “Bv
I0RESS$(7TOINCREASETHE-INIMUM&AN3PEED,
see Figure 119, page 93:
s &ROMTOFORTHE&3BOILER
s .OCHANGENEEDEDFORTHE&3BOILERS
j. Press the DHW buttons details 1 and 2 -
Figure 74, page 60FORSECONDS
k. The boiler will return to standby mode.
9. Check the working pressure.
10. 4ESTIGNITIONSYSTEMSAFETYSHUTOFFSEEPAGE74.
'AS2ATE.ATURAL'AS
!FTERMINUTESFROMCOLD
Combi
Boiler
model
Maximum rate Minimum rate
ft
3
/h ft
3
/h
&3
78.4 7.8
&3
117.6 11.8
&3
151.9 15.3
11. 4HE REQUIREDINPUT RATING OF THE CONVERTEDBOILER DOESNT
change.
12. )N53!)NPUTRATESAREDERATEDFOREACHFTABOVESEA
LEVELBEYONDFTINACCORDANCEWITH.ATIONAL&UEL'AS
#ODE!.3):.&0!
13. Using a combustion analyzer insert probe into the flue test
point, check that the CO
2
content in the exhaust, with the
boiler operating at max. and min. firing rate, matches that given
in the technical data Figure 98, page 73 or Figure 101, page 74,
FORTHECORRESPONDINGTYPEOFGAS
$/ ./4 !44%-044/ -%!352%6!,6%
/54,%4 02%3352% The valve could be
DAMAGEDBY MANOMETERFLUID CONTAMINATION
Failure to comply could result in severe personal
injury, death or substantial property damage.
14. Restore electrical power, turn on gas by opening manual gas
VALVECHECKFORLEAKS
Perform Boiler Manual start-up
&OLLOWALLINSTRUCTIONSIN"OILER-ANUALTOSTARTUP
THEBOILERAFTERCONVERTINGFORPROPANE"ECAUSETHE
boiler has been changed, you must verify correct
operation, including checking combustion with
test instruments both at high fire and low fire as
described in the Boiler Manual, pages 69, 70 & 71.
#HECKTHECORRECTIGNITIONSEQUENCEOFTHEBOILER
AFTERTHECONVERSIONASINPAGE82.
Failure to comply could result in severe personal
injury, death or substantial property damage.
Replace boiler jacket front door
2EPLACEBOILERJACKETFRONTDOORAFTERSERVICING4HE
BOILERFRONTDOORMUSTBESECURELYFASTENEDTOTHE
BOILERFRAME TOPREVENTBOILER FROM DRAWING AIR
FROMINSIDE THEBOILER ROOM4HISIS PARTICULARLY
IMPORTANT IF THEBOILERIS LOCATED IN THE SAME
room as other appliances. Failure to keep the door
SECURELYFASTENED COULDRESULT IN SEVEREPERSONAL
injury or death.
Apply installer conversion label
1. #ONVERTINGTOPROPANElRING!FTERINSTALLATIONISCOMPLETE
ATTACHTHEPROPANECONVERSIONLABELFROMKITNEXTTOTHE
boiler rating label.
 #ONTRACTORINSTALLER ISRESPONSIBLEFOR COMPLETINGTHE IN-
FORMATIONREQUIREDONLABELPROVIDEDINKITANDATTACHING
installer conversion label next to the boiler rating label.
&IGURE )NSTALLERCONVERSIONLABEL