SECTION 10: W
IRING
43
SECTION 10: WIRING
Heaters can be controlled using several methods.
Normally thermostats are used to control the heaters
but they can also be controlled by an energy
management system.
Section 10.1
illustrates the
connection for heaters controlled by a line voltage
thermostat.
For heaters on a low voltage thermostat,
See Page
44, Section 10.2
. Heaters must be grounded in
accordance with applicable codes: United States:
Refer to National Electrical Code
®
NFPA 70 - latest
revision; Canada: Refer to Canadian Electrical Code
CSA C22.1 Part I - latest revision.
If any of the original internal wiring must be replaced,
it must be replaced with wiring materials having a
temperature rating of at least 105°C and 600 volts.
10.1 Line Volta
g
e Thermostat Wirin
g
DANGER
Electrical Shock Hazard
Disconnect electric before service or
maintenance.
Heater must be connected to a properly
grounded electrical source.
Failure to follow these instructions can
result in death or electrical shock.
L1
L2
G
nd
.
N
H
G
nd
.
N
H
G
nd
.
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Bu
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s
12
0 V-60
H
z
S
upp
l
y
Ci
rc
uit
L
ine V
ol
ta
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e T
h
e
r
m
o
stat
Bu
r
ne
r
1
Bu
r
ne
r
2
M
a
x
i
m
u
m
5
Bu
r
ne
r
s
Pe
r
T
h
e
r
m
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stat
