Burnham Apex APX399, Инструкция по установке, эксплуатации и обслуживанию

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69
Figure 45B: Modified W
iring For DHW Priority When Using Low Flow Circulator Piped Off System Header -
Heating (with Central Heating Zone V
alves) Plus
a
lternately Piped
indirect W
ater Heater
N
L1
2 3 1
3 2 1
3 2
X
1
X
2
X
3
X
4
TA
C
O
Z
O
N
E
V
AL
VE
S
(S
E
E
N
O
TE
)
H
O
N
EY
W
E
LL
V
80
43
E
Z
O
N
E
V
AL
VE
S
X
3
X
4
X
2
X
1
Y
E
R
D
R
D
Y
E
Y
E
Y
E
R
D
Y
E
Y
E
R
D
R
D
X
2
X
1
X
3
X
4
3
1
2
2
4
2
3
4
2
1
2
3
4
1
2
X
1
X
2
X
3
X
4
1 2
3
4
5
2
5
4
1 3
2
4
5
1 3
2
W
IR
E
(2
4V
) T
H
ER
M
O
ST
AT
S
W
/ H
E
A
T
A
N
TI
C
IP
AT
O
R
S
ET
A
T
0.
9
A
M
P
S
(4
0V
A
R
EQ
'D
FO
R
E
V
E
R
Y
6
Z
O
N
E
VA
LV
ES
)
F
LA
IR
"V
J"
ZO
N
E
V
AL
VE
S
(S
E
E
N
O
TE
)
TO
S
A
G
E2
H
E
A
TI
N
G
T
-S
TA
T
P
O
W
ER
S
U
P
PL
Y
1
20
/6
0/
1
F
IE
LD
IN
ST
AL
LE
D
40
V
A
T
R
A
N
SF
O
R
M
ER
(S
E
E
N
O
TE
)
2
W
IR
E
(2
4V
) T
H
ER
M
O
ST
AT
S
W
/ H
E
A
T
A
N
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C
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R
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ET
A
T
0.
9
A
M
P
S
(4
0V
A
R
EQ
'D
FO
R
E
V
E
R
Y
3
Z
O
N
E
VA
LV
ES
)
2
W
IR
E
(2
4V
) T
H
ER
M
O
ST
AT
S
W
/ H
E
A
T
A
N
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C
IP
AT
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R
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ET
A
T
0.
5
A
M
P
S
(4
0V
A
R
EQ
'D
FO
R
E
V
E
R
Y
4
Z
O
N
E
VA
LV
ES
)
2
W
IR
E
(2
4V
) T
H
ER
M
O
ST
AT
S
W
/ H
E
A
T
A
N
TI
C
IP
AT
O
R
S
ET
A
T
0.
3
A
M
P
S
(4
0V
A
R
EQ
'D
FO
R
E
V
E
R
Y
4
Z
O
N
E
VA
LV
ES
)
W
H
IT
E
R
O
G
E
R
S
#
13
61
-1
02
ZO
N
E
V
AL
VE
S
C
H
E
C
K
F
O
R
C
R
O
S
S
-P
H
A
S
IN
G
B
E
TW
E
E
N
B
O
IL
E
R
T
R
AN
SF
O
R
M
ER
A
N
D
F
IE
LD
S
U
PP
LI
ED
TR
A
N
S
FO
R
M
E
R
O
N
T
A
C
O
A
N
D
F
LA
IR
Z
O
N
E
V
A
LV
E
C
IR
C
U
IT
S.
IF
C
R
O
SS
-P
H
AS
IN
G
O
C
C
U
R
S,
C
O
R
R
E
C
T
B
Y
S
W
IT
C
H
IN
G
X
1
A
N
D
X
2
O
R
X
3
A
N
D
X
4.
A
LS
O
, B
O
IL
ER
S
EC
O
N
D
AR
Y
SI
D
E
(2
4V
) I
S
N
O
TE
:
G
R
O
U
N
D
E
D
O
N
E
I A
N
D
C
A
N
A
D
IA
N
M
O
D
E
LS
A
N
D
T
H
E
Z
O
N
E
C
IR
C
U
IT
M
AY
N
O
T
O
PE
R
AT
E
IF
A
S
E
P
A
R
A
TE
G
R
O
U
N
D
IS
M
A
D
E
IN
T
H
E
ZO
N
E
C
IR
C
U
IT
.
Viii
. Electrical
(continued)