EK3 Frontier Boiler Manual
28
Seventh Edition- October 2015
5
s
y
s
-0
8
-02
0-
re
v5
.d
wg
SYS-0
8
-0
2
0
01
/0
4/0
5
JS
Sheet 2 of 8
Line V
o
ltage Wir
ing for Ga
s
Bu
rn
e
r
EK3
w
ith Digit
a
l Mgr
,
w
ith
Hea
t &
D
H
W
&
Inj
ec
tion
GAS BURNER
PS
C
B
U
RNER
MO
T
O
R
STA
N
D
A
RD
PR
IM
A
R
Y
CO
N
T
R
O
L
WIRING
VIOLE
T
B
URN
ER
JUN
C
T
ION
BOX
VIOLE
T
WH
ITE
BLAC
K
PRIM
ARY C
O
N
T
R
O
L
FO
R
B
URN
ER
OU
T
P
U
T
C
A
BLE
FR
OM
DIGITA
L MA
NA
GE
R
(R
IG
HT S
ID
E
)
H
IG
H
LI
MI
T AQUAST
AT
(WR 11D18)
D
ire
ct,
Br
ea
k on
r
is
e
Au
to
ma
ti
c
R
e
s
e
t
Set @ 20
5
/195°F
HI
GH L
IMI
T
A
Q
U
A
ST
AT
(HW L4006E 11
17)
Direct,
B
reak on rise
M
anual R
e
se
t
Set @ 210
°F
RED
TACO 0012
In
jection
Circula
tor
T
A
C
O
006
RE
D
Sm
a
rt
Pu
m
p
OUTLET
SC
RE
W
GR
OU
ND
SYS
TE
M
SWITC
H
L
O
W WAT
E
R C
U
T-O
F
F
MAN
U
A
L
RESET
(J
UM
PE
R
RE
MO
VE
D
)
Al
ar
m
T
A
C
O
007
ByPass
Cir
c
u
lat
o
r
P1
21
P2
A
DOOR SW
IT
C
H
TT
TT
A
A
BLU
E
IG
N
IT
E
R
RED
/WHT
ORAN
GE
BLUE
BLACK
WHIT
E
VIO
LET
(RED
)
(BLAC
K
)
(WHITE
)
(BLUE
)
SW
IT
C
H
BU
R
N
ER
(GRE
EN
)
(ORAN
G
E
)
BURNE
R
MAI
N
CI
RC
IN
D
HW
CIR
C
120V
24
VA
C
WH
ITE
WHIT
E
BLACK
GREEN
RED/W
HT
-C
IRC
-Z
H
W
-24 V
-B
1
-B
2
-IN
D
NE
U
T
R
A
L
HOT
G
R
O
UND
120
VAC
POWER
IN
24V REL
A
Y
IN
J
E
C
T
IO
N CI
RC
SY
STEM
JU
NC
T
IO
N
B
O
X
Fr
om
"
C
IRC" and "24VAC
" on outpu
t
(r
ig
ht)
sid
e
of
Sys
tem M
anager (See Low Voltage
W
iri
ng
Sh
ee
ts
3
)
VI
OL
E
T
AI
R
P
R
OVER
PU
F
F
SWIT
C
H
VI
OL
E
T
WH
IT
E
GAS
VALVE
