Wiring - Brant Radiant Heaters DES3-20-50 Owner's Manual

3.0 Installation •

Wiring

Wiring
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 Series 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.
Figure 2.1 • Field Wiring Diagrams
A. 24VAOX Thermostat Control (requires optional combination relay transformer P/N: R8285B).
White
115VAC
To Heater Branch #1
White
115VAC
To Heater Branch #2
NOTE: The transformer relay
selected must be capable of
handling the combined
start-up amperage per relay
branch.
B. 120VAC Thermostat Connection(s).
T
L1
Neutral
Ground
120VAC-60 Hz.
Supply
WARNING
!
Common required for thermostats
Pole Pole
#2 #1
W
G
Y
Heaters on the same vent must
share the same thermostat.
DES3 Burner Box
that require constant power.
R
W
N
Coil
115VAC
B
L1
C
NOTE: Up to 10 line voltage tube heaters
can be wired to 22 amp thermostat.
DES3 Burner Box
44
DES3 Series
24VAC Thermostat
G W R
Field
Supplied
A transformer relay is
used in conjunction
with most low voltage
thermostats when
wiring tube heaters.
Additional heaters