Weil-McLain GV90+ Installation And Start-Up Manual page 66

GV90+ Series 2
oAirlutb WA.TUI DtliLIR -
Be llM Mo.nuaJ
Start-up
rconrfnuedJ
Figure 75 lnlegr.;ted boilElf canlral (IBC) sequence of operation - status lighf indicalions
STEPS
Call for POWER T8TAT UMIT PRE88 FLAME
Timing
Heat?
CIRC SWITCH
(~H
Sll!p 8, 6te
C}Cf6
~.5
bMit
IO&~p
1)
t~ '~ :('~
f j
l.vi
1. Standby
NO
fi
0
0
0 0
• Wuitiug fur caU for htal
-
2.
can
for heat
• C;itculat.ut on
YES
n
. f i
0 0 0
-
3. Limit circuit
•
Limi~ctnt~rOltchJ6«1
YES
fi fi b
0 0
-
• Block swi(c!J
Cllntxt.s
dO«<l
• BloW<ton
4.
Pressure circuit
fJi
jl ~
fi
rt
•
Pttt4u~ ~whdl
a mtucb. dosed
YES
0
30sec
• lgnitol gtow,
6.
Flame proven
fi fi fi tl fi
• Ga.i val\'c:
(lp t-n
YES
4 sec
• ll;n.ilO:r' n!O'Iaios
e m
6. Limit cyde
• Limit.ciftuJtypen
YES
i
1
E
fi
0 0 0 3 0 -
• G•• v-•1\oe
eli»«~
• BloW<r
aft' •lt<r,pOS<purg<:
7. Flame outage •
fi fi fi fi
0
•
Flam~c.lut
YES
-
a.
Thermostat saUsfled
• Cil<'uiator nil
NO
fi
0
fi fi
0
.30sec
•
Blo~'<t
pQ"P"'St
• II<Uirn
to StqH
I
i'i
m
ON
0 •
OFF
.
lf~ls
not prown fn
.i
~'imd's.
boiler.
rc~yd~
2 tim6, tu rd.ry fur lg11idon
bd'ur~
guin.g
1ututudtuul.
Rttyde igplte,r-t1mins
i:t ~0 ~nd& P&~·lUTgt"
ttnd. •n:t'purgt
.qt_
p.~rf'lmn~
OIJ
twry
cydt:, ln ewm un(Jckqut.
ignitl~m>
ctmLrul wiU
lt.llh.unllticl-lly
rest.un=- sequcn~t uf ()peratiOo
afttt
etth~r:
• I bourwaitfrlgperlo<l.
• Openingand dosing
'Of thermostat <itrult
• RemoV\ll of
I ~ 'VACpower· fot a ~ lnst
45,..,onds