AM Series Boiler & Water Heater User Manual
CHAPTER 5: INSTALLATION
– ELECTRICAL
OMM-0100_E
•
GF-146
•
11/15/2019
Technical Support
•
(800) 526-0288
•
Mon-Fri, 8 am - 5 pm EST Page 57 of 170
SECTION 5:
INSTALLATION – ELECTRICAL
5.1 Electrical Connections
–
Boilers and Water Heaters
5.1.1 Power Supply Cable Connection - Boilers and Water Heaters
Provide and install a fused disconnect or service switch (15 amp recommended) as required by
prevailing codes. To connect the electrical line voltage power supply cable, refer to Figure 5-1.
Figure 5-1: Line Voltage Connection
Figure 5-2: Boiler Electrical Junction Box Connections
(W/ Optional DHW through an Indirect Tank)
Ind
ire
c
t
ta
nk
s
e
ns
or
S
e
c
on
d
a
ry
pu
mp
re
la
y
(
L1
)
120 VAC VOLTAGE TERMINALS
24 VDC VOLTAGE TERMINALS
S
e
c
on
d
a
ry
pu
mp
re
la
y
(
N
)
(ma
x
3
A
)
Ind
ire
c
t
D
H
W
pu
mp
(L1
)
(m
a
x
3
A
)
Ind
ire
c
t
ta
nk
s
e
ns
or
Indirect tank sensor
(Factory supplied)
Secondary
pump
(Max 3A)
Indirect DHW
pump (Max 3A)
E
na
bl
e
/
D
is
a
ble
(
dry
c
on
ta
c
t)
E
na
bl
e
/
D
is
a
ble
Ind
ire
c
t
D
H
W
pu
mp
(L1
)
