47
DX3
Series
3.0
Installation
•
Wiring
WARNING
!
Electric Shock
Field wiring to the tube heater must be connected and grounded in accordance with national,
state, provincial, local codes and to the guidelines in the Tube Heater General Manual and
Series Insert Manual. In the United States refer to the most current revisions to the ANSI/NFPA
70 Standard and in Canada refer to the most current revisions to the CSA C22.1 Part I Standard.
Wiring
Figure 3.33
•
Field Wiring Diagrams
A.
120V Single/Multiple Line Voltage Heater(s)
B.
24VAOX (Internal Relay Option)
120VAC-60 Hz. Supply
NOTE:
Up to 4 line voltage tube heaters can
be wired to most line voltage thermostats.
T
L1
Neutral
Ground
Heaters on the same vent
must
share the same thermostat.
Additional heaters
Burner Box
Burner Box
To 120VAC grounded outlet.
To 120VAC grounded outlet.
L1
N
120 Volt-60Hz. Supply
(Observe polarity)
24VAC Digital
Thermostat
120VAC
24VAC
+
Common
W
R
-
COM
24V
COM
24V
Common required for
thermostats that require
constant power.
Two 1/4” female spade
terminals as supplied
External
Transformer
(field supplied)
To 120VAC
grounded
outlet.
To 120VAC
grounded
outlet.
