Brant Radiant Heaters QTD Series User Instruction page 30

3.0 Installation • Electrical Requirements
Wiring
Electric Shock
Field wiring to the radiant tube heater must be connected and grounded in accordance
with national, state, provincial and/or local codes. 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 3.21 • Field Wiring Diagram
*NOTE: In order for the unit to operate with this configuration, the
Dual Pole, Dual Throw Switch must be toggled to the 24VAC IN
position. (See Detail 'A')
24V Yellow Control Cord
Green: Common
White: Low Fire
Black: High Fire
NOTE: T T
T P T
TP T D T T
T T P T
TP T
24V OUT - STAGE 1
LOW FIRE
24V OUT - STAGE 2
HIGH FIRE
24V IN
T T
Q D
0 T
T T P T
P T T PP
INSIDE SERVICE PANEL
C O N T R O L V O L T A G E S E L E C T O R
2 4 V A C IN 2 4 V A C O U T
• Field Wiring
WARNING
!
• Multiple Unit operation on a Single 24V Control*
N L1
DETAIL 'A'
CONTROL VOLTAGE SELECTOR
24VAC
IN
30
0
P D
T
D
0
P D
T
D
24VAC
OUT
QTD Series
P
D
P
D
N
L1