Weil-McLain GV90+ Installation And Start-Up Manual page 64

GV90+ Series 2
aAiriutlll WA.TUI lltliLIR-
Boiler Manual
Start-up rcon~nued)
Agure 7.3 Tools reQ<Jtred for gas valve ot<llel
pressure rooasumment
~
--
-
lJ.
ruh.lU._<I<t
w\1!>
lilling-
,- ,,, . •
Nlat:hua ~cre'W"
MinomttJ! prpridiefl a
.Me a:.:t~by
jl>nong
lh< mtoom~"'
(DwJ<r
Modol
h
1217 rt'CJ)Illmtlldtd).
l
Tee b"" 6ttiog (provia.d
ill
hJilh
altiMI•
ti?.-
""""·
T!'.O atar drlno-
~r
pwlve.pressare
rtg~~IIMOPO>\'rr
,.. ...
Agure74
Carelult\- connect manometer to gas valve
as shown, following Instructions on thi•
oage (seete9eod at
leA)
,.
.. w ....
M
Final checklist
Use the checklist following to ensure boiler is
operating correctly.
Have the loll owing been completed?
0
Is
proper oriftce plate installed!
Refer
to
page 8 to
check
si7.t
and
fud
typ<.
t:i
1
BI!HJ:I Proper orifice plate
m.u~t
be used Failure to d_o so will
cause seVt!l'e prrsonal InJury) dear.h or subsranhal
prop-
erty
damag~.
0 Thermostat heat anticipator (if available)
set
prope-rly? Refer to
Field wiring, pag< 56.
0 Read and followed
all prooeduresandch«ks
specified in the Start-
.up section, beginnimg
with page 59.
Perform the following
0
fitspect
vent sysrem fo r
leaks. Verify vent (and
air) piping art
functional and unobstructed.
0
Measure na[Ural gas input:
•· Operate boiler 10 minutes,
h.
Turn off other appliances.
~;... At natural gas mertr) measure time
(in seconds) required to
use one cubic foor of gas.
d. Otlculate gas input:
3600" 1000
• Btuh
numbM of seconds from step c
e. Bruh calculated should approximate input rating on boiler
rating Iaht-I.
0
Test ttmptra[Ure limit - While burnerS are operating) turn Boller
Temp adjusrmenr knob counrerclockwise until display reading is
below actual boiJer water temperature. Burners should go oA' whiJe
circulator continues to operate. Turn Boiler'n-mp adjustment knob
clockwise until display reading
is
above boiJt r wartr tempera[Ure
and ignition sequen ce should resume.
0 Test additional field - installed controls- If boiler bas a low water
cutoff) additional
hi~
limit or other conrrots) test for ope-ration as
outlined by manufac[Urer. Burner
should be
operating and should
go off when controls are
tested. When conrrots are restored, boiler
;h ould restart.
0
Test ignition system (integrated boiler contrOl)'
o:.
Connecr voltmeter ro gas valve terminals.
b. Turn off
manuaJ gas vaJvt.
c.
Set thermostat r:o call for heaL
d. JBC will begin purgtcyde, rhen activate igniter. Jgnirer will
glow for approximately 20 seconds. Near end of20 seconds)
24 VDC will show at
gas
vaJve forapproximareJy4seconds
and rhen return
to
0 VDC. Control will attempt ignition rwo
more times) increasing igniter time to 30 seconds for these
attempts. The control
will
then lockout,
flashing
the POWER
and FLAME liglns.
Pan
number
550-142-783/1012