VR
8104
, VR
820
4 AN
D VR
8304
I
N
T
E
R
M
IT
TEN
T PI
LO
T CO
M
B
IN
A
T
IO
N
G
A
S CO
N
T
R
O
L
S
69
-122
5—4
8
F
ig.
8.
T
y
p
ica
l w
ir
ing con
nect
ions
f
o
r
2
4
v
o
lt
con
tr
o
l
in
i
n
te
rm
it
ten
t i
gni
ti
on
s
yst
em
w
it
h
S8
6
00.
ST
ARTUP AND CHECKOUT
W
ARNIN
G
Fi
re
o
r E
x
pl
os
io
n
H
a
z
a
rd
.
C
a
n cau
se pr
op
er
ty
d
a
m
a
ge
, sev
er
e i
n
ju
ry
o
r de
at
h.
1
.
D
o
not
f
o
rc
e
t
he gas con
tr
ol
kn
ob on t
h
e
appl
ia
n
c
e.
U
s
e
onl
y yo
ur
ha
nd
to
t
u
rn
t
h
e g
a
s
cont
ro
l knob
. N
e
ver
us
e
a
n
y t
o
o
ls.
2
.
If
t
he kno
b does not
oper
at
e by hand
, t
h
e
cont
ro
l shou
ld
be r
epl
aced by a qua
lif
ied
ser
vi
ce t
e
chn
ic
ian.
G
as Co
n
tr
o
l Kn
ob
Sett
in
gs
G
a
s
co
nt
ro
l knob set
ti
ng
s
ar
e as f
o
llow
s:
O
F
F:
P
revent
s pi
lo
t
a
nd m
a
in
gas f
low
t
h
ro
u
gh t
h
e
cont
ro
l.
O
N
: Pe
rm
its
g
a
s
to
fl
o
w
in
to
t
h
e
c
o
n
tro
l b
o
d
y. Un
d
e
r
cont
ro
l
of
t
h
e
t
her
m
o
st
at
an
d i
n
te
rm
it
te
n
t
pi
lo
t
m
o
dul
e,
gas can f
low
t
o
t
he pi
lo
t
a
nd m
a
in
bu
rn
e
rs
.
N
O
TE
:
C
o
n
tr
ol
s ar
e
sh
ip
p
ed w
it
h
t
he gas con
tr
ol
kn
ob
in
t
he O
N
posi
ti
on.
Tu
rn On S
ystem
R
o
ta
te
t
h
e gas cont
ro
l knob
co
unt
er
cl
oc
kw
is
e
t
o
ON
.
Turn
On Main
Burne
r
Fo
llow
app
liance m
anu
fa
c
tur
er
i
n
st
ru
ct
io
n
s
o
r t
u
rn
u
p
ther
m
o
st
at
t
o
cal
l
fo
r heat
.
Perfo
rm Gas L
eak Test
W
ARNIN
G
Fi
re
o
r
E
x
pl
osi
on
H
a
zar
d.
C
a
n
c
a
use
p
ro
p
er
ty
dam
ag
e,
se
ver
e
in
ju
ry
or
d
eat
h.
Per
fo
rm
G
a
s Leak T
e
st
ever
y t
im
e
w
o
rk
i
s
done
on a gas syst
em
.
IM
PO
RT
AN
T
D
o
not
sp
ra
y
so
ap and w
a
te
r sol
ut
ion on
t
he
ga
s
co
nt
ro
l.
D
o
no
t use an excess
iv
e am
oun
t of
soa
p
a
nd w
a
te
r
s
o
lu
ti
on t
o
per
fo
rm
t
h
e
g
a
s
leak
te
st
. The
se can dam
ag
e
the con
tr
ol
.
Gas L
eak
Tes
t
1.
P
a
in
t pi
pe co
nnect
io
ns ups
tr
eam
of
t
h
e gas c
ont
ro
l
w
it
h
r
ich so
ap a
nd w
a
te
r sol
ut
io
n.
Bub
bl
e
s
i
ndi
c
a
te
a gas
l
eak.
2.
If
a l
e
ak
is
det
ect
ed,
t
ig
h
ten t
h
e
p
ipe
con
nect
io
ns.
3.
Li
ght
t
h
e
m
a
in
bur
ner
. S
tan
d
c
lea
r of
t
he m
a
in
bu
rn
er
w
h
ile l
ight
in
g
t
o
pr
event
i
n
ju
ry
caused
f
rom
hi
dde
n l
eaks
t
hat
c
oul
d
ca
use
fl
ashb
ack
in
t
he
ap
pl
iance
ve
st
ibul
e.
4.
Wi
th
t
he m
a
in
bu
rn
er
i
n
o
per
at
io
n
, pai
nt
t
he pi
pe
jo
in
ts
(
incl
udi
ng ad
apt
er
s)
an
d t
h
e
c
ont
ro
l i
n
le
t and
ou
tl
et
w
it
h
r
ich
soap
an
d w
a
te
r s
o
lu
ti
on.
5.
If
ano
th
er
l
eak i
s
det
ect
ed,
t
ight
en t
he adap
te
r
scr
ew
s,
j
o
in
ts
, a
nd
pi
p
e
conne
ct
ions.
6
.
R
epl
ace t
h
e par
t i
f a
leak can
not
b
e
s
top
ped.
Chec
k and Ad
just Pilo
t Flame
Th
e
pi
lo
t f
lam
e
sho
ul
d
en
vel
op
3/
8
t
o
1/
2 i
n
. (
1
0
t
o
13
m
m
)
of
t
he t
ip of
t
he
ig
ni
te
r-
s
ensor
. Se
e F
ig.
9
.
If
t
he
pi
lo
t
fl
am
e i
s
sm
al
l or
l
a
zy
,
th
e
i
n
le
t gas pr
essu
re
m
a
y be t
oo
lo
w
, or
t
he pi
lo
t
o
ri
fi
c
e m
a
y be par
ti
al
ly
cl
o
gged
. C
h
eck
an
d
re
p
a
ir
as necess
ar
y.
I
f
th
e
pi
lo
t f
lam
e i
s
har
d and
no
is
y,
t
he i
n
le
t gas pr
essur
e m
a
y be t
o
o
h
igh
. The
g
a
s
con
tr
ol
h
a
s a
p
ilo
t
adj
ust
m
ent
m
e
ch
ani
sm
t
o
r
e
duce
the
pi
lo
t f
low
i
f nec
essar
y.
I
f pi
lo
t adj
u
s
tm
en
t i
s
ne
cessar
y,
pr
oce
ed as f
o
llo
w
s:
1.
R
e
m
o
ve pi
lo
t adj
u
s
tm
en
t cove
r scr
ew
. See
F
ig.
6.
2.
Th
e pi
lo
t
ad
ju
st
m
ent
i
s
shi
pped at
t
h
e
f
u
ll pi
lo
t
g
a
s
fl
ow
r
a
te
. T
u
rn
t
h
e
inne
r adj
ust
m
ent
scr
ew
cl
ockw
is
e
if
t
he i
n
le
t
pr
es
sur
e
is
t
o
o
hi
gh.
T
u
rn
t
he i
n
ner
a
d
ju
st
m
e
n
t scr
ew
cl
ockw
is
e
to
de
cr
e
a
se o
r c
ount
er
cl
o
ckw
is
e
to
in
cr
eas
e
pi
lo
t f
lam
e.
3.
R
epl
ace t
h
e cover
s
c
re
w
af
te
r t
h
e
a
d
ju
st
m
e
n
t t
o
pr
eve
nt
ga
s
leaka
ge.
Fi
g.
9
. Pr
o
p
er
f
lam
e adj
us
tm
e
n
t.
MV
MV/PV
PV
GND
(BURNER)
24V
GND
24V
SPARK
S8600
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
ALTERNATE LIMIT CONTROLLER LOCATION.
MAXIMUM WIRE LENGTH 3 ft [.9 m].
CONTROLS IN 24V CIRCUIT MUST NOT BE IN
GROUND LEG TO TRANSFORMER.
FOR MODULE WITH TH-W TERMINAL AND VENT DAMPER
PLUG, CONNECT THERMOSTAT TO TH-W. LEAVE
24V OPEN. DO NOT REMOVE VENT DAMPER PLUG.
1
2
3
4
5
M9056
GROUND
PILOT GAS
SUPPLY
2
4
3
Q345, Q346,
Q348, Q362, Q381
PILOT BURNER/
IGNITER-SENSOR
L1
(HOT)
1
L2
LIMIT
CONTROLLER
THERMOSTAT
5
TH-W
(OPT)
VENT
DAMPER
PLUG
(OPT)
5
GAS CONTROL
TERMINALS
PV
PV/MV
MV
SENSE
PROPER FLAME
ADJUSTMENT
IGNITER-
SENSOR
M3080A
3/8 TO 1/2 INCH
(10 TO 13 mm)
VR
8104
, VR
820
4
A
N
D VR
8304
I
N
T
E
R
M
IT
TEN
T PI
LO
T CO
M
B
IN
A
T
IO
N
G
A
S CO
N
T
R
O
L
S
7
69-1
225—4
F
ig.
5.
Pr
op
er
u
se of
w
ren
ch on ga
s
c
ont
ro
l
w
it
h
a
nd w
it
h
o
u
t
fl
ange
s.
Fi
g.
6
. T
op
vi
ew
o
f
gas
c
ont
ro
l.
Fi
g.
7.
A
lw
ays
u
se new
c
o
m
p
re
s
s
io
n f
it
ti
n
g
.
Wi
ri
n
g
Fol
lo
w
t
h
e
w
ir
ing i
n
st
ru
ct
io
n
s
f
u
rn
is
hed by t
he appl
ia
nce
m
anuf
act
ur
er
,
if
ava
ilabl
e
,
or
use
t
he g
ener
al
i
n
st
ru
ct
ions
pr
ovi
d
ed bel
ow
. When t
hese i
n
st
ru
ct
ions di
ff
er
f
rom
t
he
appl
ia
nce m
anuf
act
ur
er
, f
o
llow
t
he appl
ia
nce
m
anuf
act
ur
er
i
n
st
ru
ct
ions.
A
ll w
ir
in
g
m
u
s
t
com
pl
y w
it
h
app
lic
abl
e
e
lect
ri
cal
codes
an
d o
rd
ina
nces.
D
isco
nnect
pow
er
sup
pl
y
be
fo
re
m
a
ki
ng w
ir
ing
con
nect
io
ns t
o
pr
even
t
el
ect
ri
cal
sho
ck o
r
eq
ui
pm
en
t
da
m
a
ge.
1.
C
heck
the
pow
er
su
ppl
y
r
a
ti
ng
o
n
t
he
ga
s co
nt
ro
l
an
d
m
a
k
e
s
u
re
i
t m
a
tc
hes t
he avai
la
b
le supp
ly
.
In
st
al
l
a
t
ransf
or
m
e
r,
t
h
er
m
o
st
at
and ot
her
cont
ro
ls
as r
equi
red.
2.
C
onne
ct
co
nt
ro
l ci
rc
ui
t t
o
t
he g
a
s con
tr
ol
t
e
rm
in
a
ls
.
S
ee Fig
. 8.
APPLY WRENCH
FROM TOP OR
BOTTOM OF GAS
CONTROL TO
EITHER SHADED AREA
WHEN FLANGE IS NOT USED
APPLY WRENCH
TO FLANGE ONLY
WHEN FLANGE IS USED
M3079
HI-LO
ADJUSTMENT SCREWS
(UNDER CAP)
REGULATOR
VENT COVER
INLET
INLET
OUTLET
M10968A
HI
LO
OUTLET
PRESSURE
TAP
WIRING
TERMINALS (3)
INLET
PRESSURE TAP
PRESSURE REGULATOR
ADJUSTMENT
(UNDER CAP SCREW)
PILOT OUTLET
PILOT ADJUSTMENT
(UNDER CAP SCREW)
GAS
CONTROL
KNOB
TWO-STAGE
PRESSURE
REGULATOR
MODEL
GAS CONTROL
TIGHTEN NUT ONE TURN
BEYOND FINGER TIGHT.
FITTING BREAKS OFF AND CLINCHES
TUBING AS NUT IS TIGHTENED.
TO PILOT
BURNER
M3076A
