Titus Electric Heat IOM - Manual (Page 4)

Figure 4.
Pneumatic Parallel (Variable Volume) Fan Powered Terminal
Electric Reheat, 480V, 3φ, 3 Stage, 3 Element
RED
Y
EL
LO
W
REVERSE ACTING WIRED N.O. AND PIPED TO THERMOSTAT LINE.
1. FACTORY WIRED P.E. SWITCH. DIRECT ACTING WIRED N.C.,
G
R
EE
N
3
NOTES:
BLACK
MOTOR 1
BR
O
W
N
BR
O
W
N
WHITE
RED
CRIMP CAP SCR
R
ED
BLACK
R
ED
RED
WHITE
TO CONTACTOR
WHITE
TO MOTOR
WHITE
YELLOW
BROWN
2 POLE TERM BLOCK USED W/DISC ONLY
CAP
N
G
W
H
IT
E
N
L3
L2
USE COPPER
CONDUCTORS
L1
ONLY
OR OPTIONAL
DISC SWITCH
TERM BLOCK
W
H
IT
E
W
H
IT
E
OPTIONAL
MOTOR FUSE
RED
YELLOW
SEE NOTE #1
NO COM
P.E. SWITCH
STEP 3
NC
BLACK
LINE FUSES
OPTIONAL
NC
BROWN
COM
BL
AC
K
NO
FAN
SEE NOTE #1
P.E. SWITCH
ORANGE
MANUAL RESET
OPTIONAL
STEP 2
BR
O
W
N
USE COPPER CONDUCTORS
CAUTION:
ELECTRIC SHOCK MAY RESULT
DISCONNECT POWER SUPPLY
PRIOR TO SERVICING UNIT.
ONLY!
NOTE:
(TYP)
THERMAL
HI LIMIT
B
R
O
W
N
NO
NC
COM
SEE NOTE #1
COM
STEP 1
P.E. SWITCH
N.O.
AFS
BL
AC
K
O
R
AN
G
E
P.E. SWITCH
SEE NOTE #1
B
LA
C
K
W
H
IT
E
RED
NC
BL
AC
K
NO
ORANGE
BROWN
COM
Figure 5.
Pneumatic Series (Constant Volume) Fan Powered Terminal
Electric Reheat, 277V, 1φ, 1 Stage, 1 Element
P.E. SWITCH
COM
WIRED N.O. ONLY
AIR SET AT 17 PSI.
DAY P.E. PIPED TO MAIN
SCR
RED LOAD
RED
BROWN
BROWN
CAP
CRIMP CAP
BLACK
3
FAN
MOTOR
WHITE
1
T'STAT TUBE
AUTO RESET
THERMAL HI LIMIT
(OPTIONAL)
MANUAL RESET
WHITE
B
R
O
W
N
NO
NC
P.E. SWITCH
COM
STEP 1
RED
WHITE
*
NO
NC
P.E. SWITCH
FAN
COM
DAY
BLUE
WHITE
PIPED TO
BLUE
OPTIONAL OR OPTIONAL
DISCONNECT SWITCH LINE FUSE
WHITE
N
L1
N.C. DA T'STAT.
COM
AIR FLOW SWITCH
NO
*
FAN
NC
NO
NIGHT
BLUE
OPTIONAL
MOTOR FUSE
NIGHT P.E. FIELD PIPED
SET AT 8 PSI, WIRED N.O.
RA T'STAT OR WIRED
YELLOW
TERMINAL BLOCK
EHeat-IOM-4.0 6-1-01