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XTS Series - 4" Tube Heater Installation, Operation, Maintenance and Parts Manual
XTS Series
Field Wiring Diagrams
NOTE: Up to 4 line voltage
tube heaters can be wired to
most T-stats. Heaters on same
vent must share the same
t-stat.
L1
L2
COMMON REQUIRED FOR
THEMOSTATS THAT REQUIRE
CONSTANT POWER.
24v DIGITAL T-STAT
EXTERNAL TRANSFORMER IS
NEEDED WHEN USING THE
INTERNAL RELAY OPTION. A
40VA TRANSFORMER IS
SUFFICIENT TO OPERATE 10
APPLIANCES
Alternative Field Wiring Diagram for 24VAO (Internal Relay Option).
WHITE
TO HEATER BRANCH #1
115V
WHITE
TO HEATER BRANCH #2
115V
R8285 Relay
Transformer
V.6/03
T-stat
GRD
HOT (Black)
NEUTRAL (White)
120V Connection(s) for Single/Multiple Line Voltage Heaters
FIELD WIRING FOR INTERNAL RELAY OPTION
THE INTERNAL RELAY ALLOWS FOR LOW VOLTAGE T-STAT OPERATION OF LINE VOLTAGE HEATERS
COMMON
C
W
R
EXTERNAL
TRANSFORMER
24V
120 V
L2
POLE
POLE
W
#2
#1
G
Y
24V T-Stat & Connection
NC
COM
N
24v
BURNER BOX
WITH
INTERNAL
RELAY OPTION
N
24v
BURNER BOX
WITH
INTERNAL
RELAY OPTION
N
24v
BURNER BOX
WITH
INTERNAL
RELAY OPTION
L1
Common required for
thermostats that
require constant
power.
R
W
L2
115V
COIL
B
L1
C
6
B
HEATER
BURNER BOX
W
Multiple
(if applicable)
G
B
HEATER
BURNER BOX
W
Multiple
(if applicable)
G
B
HEATER
BURNER BOX
W
Multiple
(if applicable)
G
B
HEATER
BURNER BOX
W
Multiple
(if applicable)
G
PANEL GROUND
PANEL GROUND
PANEL GROUND
120 Volt Power
(Observe Polarity)
L1
L2
24V T-stat
G
W
R
24V
24V
A Transformer Relay is used in conjunction
with most low voltage T-stats when wiring
tube heaters.
NOTE: The Transformer Relay selected must
be able to handle the combined start-up
amperage per relay branch.
BY OTHERS
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