33
A
PRIL
/25/2013
Wiring Diagrams
General Requirements
Heaters are normally controlled by line voltage (120V) or low voltage (24V) thermostats. Line
voltage thermostats are wired directly while low voltage thermostats use a relay. In all cases,
heaters must be grounded in accordance with the
National Electric Code,
ANSI/NFPA 70 in the
US, and the
Canadian Electric Code,
CSA C22.1 in Canada, and must comply with all local
requirements. Heaters may also be controlled with a manual line switch or timer switch in place of
the thermostat. Refer to wiring diagrams below for guidance on electrical wiring of heaters.
If any of the original wire as supplied with the heater must be replaced, it must be replaced with
wiring having a rating of at least 105°C temperature service and 600 volts capability.
NOTE: If any of the original wire as supplied with
the appliance must be replaced, it must be replaced
with wiring material having a rating of at
least 105°C.
Black
BURNER
Pink
IGNITER
SENSOR
SWITCH
B
LOW
ER
Orange
Red
AIR
Brown
Yellow
24V
FS
120L
IND
Y
el
lo
w
B
ro
w
n
Pu
rp
le
Blue
L1
N
120V
L1
N
120V
24V
Red
Bla
ck
Yellow
Green
Channel Module 53X-24
G
A
S
V
AL
V
E
C
M
H
I
Low Fire
Lamp
Y
el
lo
w
Br
ow
n
B
lu
e
2 Stage Switch
Green
Yellow
Hi Fire
Lamp
24V Thermostat is
Mounted Externally
Note: The post purge feature is not
utilized with the thermostat wired on the
120 VAC circuit. This option only works
if the heater is wired with the thermostat
on the 24 VAC circuit above.
Wiring Diagram ETO-100
Use 18 Ga. LVT Wiring minimum.
2 Stage Switch
P/N EE020
supplied by
others
S
ERIES
DECO-T
UBE
