Bryan Boilers FREE FLEX, Installation & Operation Manual, Page: 92 / 100

92
Bryan Steam, LLC www.bryanboilers.com
Phone: 765-473-6651 783 N Chili Ave, Peru, IN 46970 sales@bryansteam.com
Figure 37: Free Flex 3500 To Free Flex 6000 Dual Fuel 208-460 VAC Three Phase Wiring Diagram
Page 1-A
Note: Wiring diagrams are for reference only, please refer to the wiring shipped with the boiler for accuracy
Co
nc
er
t B
oi
ler
Con
tr
ol
LM
V3
6
F1
(6.
3A
Sl
ow
Bl
ow)
Bu
rn
er
on
/of
f
swi
tc
h
N
79
Bl
oc
ke
d
Co
nde
ns
at
e
Flo
at
Sw
itc
h
P2
-8
72
P2
-9
P2
-3
71
P1
-5
70 93 94 92 88 89 87 80
P2
-10
PCB
-0
1
P3
-8
P3
-9
J3 J6
P3
-10
P3
-12
P3
-6
P3
-5
X3.
04.
3
X3.
04.
4
X5.
01.
2
P1
-2
X3.
04.
5
Lo
w A
PS
Blo
w
er O
n
Bur
ne
r
Th
er
m
al Fu
se
Hi
gh
-T
em
p
Lim
it M
/R
P2
-1
96 97 95
J7
99
100
98
102 103
101
91 90
P3
-7
J5
J8
J9
J10
104
82
81
84 83 86 85
P2
-5
P2
-4
P3
-1
J4
77 78 76 73
J2
75 74
J1
L1
P3
-11
P2
-7
P2
-2
P2
-6
Au
x R
ec
yc
le
In
te
rlo
ck
(C
ut
Jum
pe
r i
f us
ed
)
C
C
NC
NO NO
C
BU
RN
ER
SO
FT
SW
IT
CH
N/A N/A
1 2
3
Bac
k V
ie
w
LT
W
at
er
Flo
w
Sw
itc
h
X5.
03.
1
X3.
04.
1
24V
dc
+
RB
1-
4
HI
-B
ur
ne
r
Pre
ss
ure
NC
C
Hi
gh
-T
em
p
Lim
it A/
R
C
NC
Lo
w G
PS
C
NO
X3.
02.
1
X3.
03.
1
X3.
03.
2
10 11 12 13 14 15 16 17 18
9 8 7 6 5 4 3 2 1
PC
B-
13
24
v
24
v
24
v
24
v
24
v
24
v
24
v
24
v
Co
nc
er
t B
oi
ler
Con
tr
ol
LM
V3
Co
nc
er
t B
oi
ler
Con
tr
ol
P
LC
24V
dc
-
2
24V
dc
-
2
C
NO
Lo
w
PG
PS
3
Co
ld
A
ir D
amp
er
End
S
wi
tc
h
St
andb
y L
os
s
Da
m
pe
r E
nd
Sw
itc
h
J1
3
Iso
la
tio
n V
al
ve
End
S
wi
tc
h
J1
4
Ex
te
rn
al
Lim
it
J1
5
Sp
are
Lim
it
32
J1
6
P30-
4
PCB
-0
3
J1
2
25 26 24 28 29 27 31 30 23
P30-
3
79 80
[R
ED
]
[O
RG]
Lo
w G
PS
C
NO
C
NO
Lo
w
PG
PS
NG
LP
CR
2 7
11
CR
3 7
11
NG
Hi
gh
G
PS
C
NC
LP
Hi
gh
G
PS
C
NC
CR
2 6
10
CR
3 6
10
P1
-2
P1
-2
P1
-1
P1
-3
Sel
ec
t F
uel
NG
LP
(A)
M1
M2
L1
L2
M3
L3
.25
K
VA
C
on
tr
ol
Ci
rc
uit
Tr
an
sf
orm
er
C02
50
E5E
FB
X1
X2
X3
12
0v
ac
GN
D
Con
ne
ct
to
V/
C/
P
Po
we
r S
up
pl
y
A
B
C C
Amp Prim
ary
Fus
e
Amp Prim
ary
Fus
e
D
GN
D
M1
Gr
ou
nd
Sc
re
w
Te
rm
in
al
To
G
ro
un
din
g
Con
du
ct
or
Bo
ile
r m
us
t b
e g
ro
un
de
d in
ac
co
rd
an
ce
w
ith
AN
SI
N
at
io
na
l E
le
ct
ric
C
od
e.
IM
POR
TAN
T:
Th
e
w
iri
ng
sh
ow
n
fo
r de
vi
ce
s s
up
pl
ie
d
and
in
sta
lle
d b
y o
th
er
s i
s s
ug
ge
ste
d
on
ly.
C
er
tif
ica
tio
n o
f,
an
d
re
sp
on
sib
ilit
y f
or t
he
co
rre
ct
ne
ss
o
f t
he
w
irin
g is
th
e
re
sp
on
sib
ilit
y
of
th
e s
up
plie
r o
f t
he
se
d
ev
ice
s.
Bry
an
St
ea
m
LL
C a
cc
ep
ts
n
o
re
sp
on
sib
ilit
y f
or t
he
co
rr
ec
tne
ss
o
r s
afe
ty
o
r e
xe
cut
io
n
of th
is w
iri
ng
o
r o
f th
e o
pe
ra
tio
n o
f s
uc
h
de
vi
ce
s.
M2
[G
RN
]
Co
m
bu
st
io
n B
lo
w
er P
ow
er
S T 1
L3
G
L2
L1
M3
40
A D
isco
nn
ect
M
ou
nte
d O
n B
oi
le
r
(O
pt
io
na
l)
PN
:
ED
S2-
340-
PC
M
R
Y
Con
ne
ct
to
V/
C/
P
Po
we
r S
up
pl
y
GRN
GRD
To
G
rou
nd
in
g C
on
du
ct
or
Eq
ui
p.
G
ro
und
1
3
5
2
4
6
EB
M
P
A
PST
1 M
W
2 M
W
V
/C
/P
208
/60/
3
230
/60/
3
460
/60/
3
460
/60/
3
208
/60/
3
230
/60/
3
(A
)
H4
H4
H4
H4
H4
H4
(B
)
H3
H2
H1
H1
H3
H2
(C
)
3
A
M
P
3 A
M
P
1.25
A
M
P
1.
25 A
M
P
3 A
M
P
3 A
M
P
(D
)
9 A
M
P
9
A
M
P
5 A
M
P
15
A
M
P
30 A
M
P
30 A
M
P
N/A
N/A
PC
B-
01
T
er
m
in
als
P
7 =
1
13 -
118
P
8 =
7
0 -
76
P
9 =
7
7 -
86
P
10 =
87 -
90
P
11 =
91 -
95
P
12 =
96 -
104
P
13 =
105 -
11
2
LW
CO
1 2
P1
P2
Pr
obe