Programming Guide

VAV-SVP01A-EN 109
Troubleshooting
Figure 61. Single duct with single phase voltage electric heat
WIRING
FIELD INSTALLED
TWISTED PAIR
COMMUNICATIONS
1ST STAGE
3RD STAGE
CONTACTOR
2ND STAGE
CONTACTOR
CONTACTOR
T
r
a
c
e
r
V
V
5
5
0
T
B
4
_
2
T
B
4
_
1
T
B
2
_
2
T
B
2
_
1
T
B
2
_
4
T
B
2
_
3
T
B
1
_
2
T
B
1
_
1
J
8
J
9
Y
B
L
B
R
O
MAGNETIC CONTACTORS (MAGN)
MERCURY CONTACTORS (MERC)
SINGLE PHASE
LINE VOLTAGES
1
CONTACTORS
HEAT
3
2
347
480
208
240
277
STAGES
T
B
2
_
5
T
B
2
_
6
T
B
3
_
1
T
B
3
_
2
T
B
3
_
5
T
B
3
_
3
BK
T
B
3
_
6
F
L
O
W
R
G
VOUT
TRANSDUCER
-
+
ACTUATOR
J
1
0
J
1
1
ACTUATOR
V
R
H
O
T
H
O
T
O
P
E
N
C
L
O
S
E
WIRING
DAMPER
PRESSURE
24V
HEATER TERMINAL BOX
OPTIONAL
TRANSFORMER
(208, 240 & 480)
FUSE
OPTIONAL
(SEE NAMEPLATE)
LINE VOLTAGE
V
O
AIR FLOW
SWITCH
BL
Y
OPTIONAL
THERMAL
B
R
CUTOUT
R
Y
BL
Y
AUTO RESET
CUTOUT
MANUAL
OPTIONAL
FUSE
OPTIONAL
DISCONNECT
SWITCH
L1
L2
T
G
L1 L2 - 208, 240
L1 L2 N - 480
L1 N - 277, 347
L1
N
L1
N
G
WIRELESS
INSTALLED
24VAC
OPTIONAL FIELD INSTALLED
DIGITAL DISPLAY ZONE SENSOR
DIGITAL DISPLAY ZONE SENSOR
BL
VV550 BOARD
BL
24V
GND
T
B
1
-
1
T
B
1
-
2
Y
Y
TB3-3
7
TB1-1
TB1-2
W/ COMM. JACK
REMOTE MTD.
FACTORY
OPTIONAL
11 10 236 1
W/ COMM. JACK
ZONE SENSOR
OPTIONAL FIELD
TB2-6
INSTALLED ZONE SENSOR
TB3-3
TB2-5
TB3-1
TB3-2
1(-)
REMOTE MTD.
3
2(+)
2 1
TB2-6
TB2-5
TB3-1
TB3-2
HEATER TERMINALS - TYPICAL OF SINGLE PHASE VOLTAGES
SINGLE DUCT UNITS - VV550