User Guide

57
10) If the boiler is to be converted to propane (LP gas), start-up and adjust throttle as described in Appendix A.
11) Start the boiler using the lighting instructions on page 61. With the boiler powered up, and with no call for heat, the display
will “boot up” as shown in Figure 11.2a for a period of 1-2 minutes. Once a call for heat is present, the demand code will
alternatelyashwiththeoutlettemperature.(Figure11.2b)
12) Theboilershouldattempttoreapproximately30secondsafteracallforheatappears.Withtheupperfrontcoverremoved
from the boiler, this try for ignition will appear as an audible spark (lasting approximately 4 seconds) and an audible click
fromthegasvalve.Uponinitialstart-up,thegastrainwillbelledwithair.Evenifthegaslinehasbeencompletelypurged
ofair,itmaytakeseveraltriesforignitionbeforeaameisestablished.Iftheboilerdoesnotlightaftersixtriesforignition,
it will enter a “Hold” and will wait for one hour before attempting another ignition sequence. This “Hold” can be reset by
interruptingpowertotheboilerforafewseconds.Onceaamehasbeenestablishedforthersttime,subsequentcallsfor
burneroperationshouldresultinaameonthersttry.
13) Ifthereisaproblemthatappearsbeforethersttrialforignition,oriftheboilerfailstolightaftersixtriesforignition,the
displaywillalternatelyashtheoutlettemperatureanda“holdcode”(Fig.11.2c).Thiscodeis110inthecaseoffailureto
light after 5 retries for ignition. For more information, and a complete list of Hold codes, see Part XIV of this manual.
14) Inspecttheamevisiblethroughthewindow.Onhighretheameshouldbestableandmostlyblue(Fig.11.3).Noyellow
tippingshouldbepresent;however,intermittentecksofyellowandorangeintheamearenormal.
15) Check the inlet gas pressure. Verify that the inlet gas pressure is between the upper and lower limits shown on the rating
plate with all gas appliances on and off.
BEFORE OPENING VENT.
ATTACH 1/4" ID CLEAR
TUBING TO HOSE BARB
AND ROUTE TO SAFE PLACE
AWAY FROM CONTROLS
MANUAL AIR VENT
FIGURE 11.1: LOCATION OF MANUAL AIR VENT