Reznor VCT Unit Installation Manual - Manual (Page 10)

10
If any of the original wire as supplied with the appliance must be replaced, it must be replaced
with wiring material having a temperature rating of at least 220°F/105°C
Figure 7b. Internal Burner Wiring Diagram. (VCT)
L N
E
L1
Gas Control
MV
X C
COM
W1 P
S0
P
S1
IN
D
R
E
G
as
V
alve
C
M
HI
NOTES:-
Power On light is permanently illuminated when 120V / 60 Hz AC external supply is connected to burner.
Additional wiring is required to install a thermostat and / or time clock.
Wire specification:- 18 AWG (1.0mm²), Tri-rated, 105°C
Pressure Switch
120V/24VAC 60Hz
Transformer
Power ON (red)
BK R Y O BR GR BL
KEY:
BL - BLUE
BK - BLACK
BR - BROWN
GR - GREY
G - GREEN
K - PINK
R - RED
W - WHITE
Y - YELLOW
O - ORANGE
P - PURPLE
BR Y P
Y Y
R W G BK W G
BL BR
P GR
P
GR
K
BR
W BK
L N E
120V AC
Supply
BK
F1 N E F2
120V AC Fan
Terminals
High Fire
K GR
24V AC
RELAY
21
14 24
11
A2
12 22
A1
High Fire
Relay
COIL
NC
NO
COM
C W2 W1 R
24V AC Stat
Terminals
K O BL BR
Low Fire
(amber)
C W2 W1 R
24V Two stage
Thermostat
R W G BK W G
BK
BL
R
BK
R
K O BL BR
E