Programming Guide

VAV-SVP01A-EN 11 3
Troubleshooting
Figure 65. ECM fan-powered with single phase voltage electric heat
ACTUATOR
TB3-3
TB3-2
OPTIONAL FIELD
INSTALLED ZONE SENSOR
ZONE SENSOR
W/ COMM. JACK
REMOTE MTD.
TB2-6
2(+) 1(-)
3
TB2-5
2 1
TB3-1
VV550 BOARD
24VAC
FACTORY
OPTIONAL
WIRELESS
INSTALLED
GND
T
B
1
-
2
T
B
1
-
1
24V
BL
Y
Y
BL
TWISTED PAIR
COMMUNICATIONS
FIELD INSTALLED
WIRING
T
B
4
_
2
T
r
a
c
e
r
V
V
5
5
0
T
B
2
_
3
T
B
4
_
1
T
B
2
_
1
T
B
2
_
2
T
B
2
_
6
T
B
2
_
4
T
B
2
_
5
B
L
T
B
1
_
1
T
B
1
_
2
Y
J
8
B
R
J
1
0
J
9
O
V
J
1
1
R
FUSE IS INSTALLED IF FUSE IS SELECTED.
FOR VOLTAGES 208, 240, & 480 A SECOND
480
MAGNETIC CONTACTORS (MAGN)
MERCURY CONTACTORS (MERC)
SINGLE PHASE
LINE VOLTAGES
208
2
TB2-5
DIGITAL DISPLAY ZONE SENSOR
REMOT E MTD.
OPTIONAL FIELD INSTALLED
DIGITAL DISPLAY ZONE SENSOR
W/ COMM. JACK
11 10 7 6
TB1-2
TB1-1
TB2-6
3 2 1
TB3-1TB3-3
TB3-2
CONTACTORS
HEAT
1.
277
347
240
STAGES
1
C
L
O
S
E
BOARD
ECM
TRANSDUCER
T
B
3
_
1
T
B
3
_
2
T
B
3
_
3
T
B
3
_
5
T
B
3
_
6
F
L
O
W
BK
BL
24V
RELAY
MOTOR
+
PRESSURE
-
VOUT
R
BK
G
BL
1
2
W
B
K
G
R
3
R
4
FUSE
OPTIONAL
BK
NEUT.
24V
CONTROL BOX
VV550
POWER FACTOR
CORRECTION CHOKE
Y
BK
TERMINAL
BL
BLOCK
TRANSFORMER
BK
Y
BL
2
4
V
ECM MOTOR
1.
HEATER TERMINAL BOX
OPTIONAL
AIR FLOW
O
O
P
E
N
H
O
T
H
O
T
ACTUATOR
WIRING
DAMPER
Y
V
SWITCH
B
R
DISCONNECT
SWITCH
BK
BK
W
W
B
K
W
AUTO RESET
HOT
THERMAL
Y
CUTOUT
2ND STAGE
CONTACTOR
1ST STAGE
CONTACTOR
CUTOUT
MANUAL
OPTIONAL
FUSE
OPTIONAL
FUSE
(SEE NAMEPLATE)
LINE VOLTAGE
TERMINAL
BLOCK
BR
W
W
BK
G
TO
DISCONNECT
OPTIONAL
SWITCH
L1
L2 N
G
L2 NL1
L1 L2
N
G
L1 L2 N - 208, 240, 480
L1 N - 277, 347
1.
FAN-POWERED UNITS - VV550 - ECM MOTOR
HEATER TERMINALS - TYPICAL OF SINGLE PHASE VOLTAGES