Line Voltage Wiring Diagram - Model 5140
240V OR 208V SYSTEMS ONLY
Use copper or aluminum conductors rated for 75
o
C or higher for field connection of this device.
NOTE 1: Line Voltage Field Wiring Connections. See Figure 8 for information on proper circuit phasing.
NOTE 2: For more information regarding pump (circulator) wiring, reference Figures 9, 15 and 16 in the
Installation section of this manual.
A
pp
en
di
x
Appendix
A.07
Comfort Plus Hydronic
Element 11
Element 12
Element 9
Element 10
COM
NO
RELAY 9
COM
RELAY 11
RELAY 3
E
X
P
A
N
S
IO
N
B
O
A
R
D
1
RELAY 8
NO
COM
COM
NO
COM
NO
RED
BLACK/YELLOW
RED
RESISTOR
DAMPER
RESISTER
BLOWER
COM
RELAY 1
COM
NO
NO
RELAY 2
Relays
2,6,10,14
L2 240
WHITE
RELAY 7
NO
RELAY 13
RELAY 15
RELAY
FAN ON
RELAY
FAN ON
NO
NO
COM
COM
RELAY
HEAT CALL
HEAT CALL
RELAY
NO
NO
COM
COM
HEATING ELEMENTS
Element 16
Element 14
Element 15
RELAY 10
NO
RELAY 12
COM
NO
COM
NO
COM
COM
RELAY 4
NO
NO
R
E
D
B
L
A
C
K
Relays
1,5,9,13
To
To
MANUAL
Red & White To
Primary Loop Pump
(Max 1.2 AMPS)
Black & White
To Air Handler Pump
(Max 1.2 AMPS)
BLUE
B
L
A
C
K
/Y
E
L
L
O
W
EXCHANGER
LIMITS
225
°
N.C.
RESET
AUTO
RESET
250
°
N.C.
4uf
HIGH
BASE IO BOARD
BASE IO BOARD
5 Amp
5 Amp
L1
L2 120
1/4 Amp
1/4 Amp
WHITE COM.
COM
COM
NO
NO
COM
COM
NO
NO
Cap.
CORE BLOWER
BLACK
NEUTRAL LUG
C
IR
C
U
IT
CONTROL CIRCUIT
C
O
N
T
R
O
L
S
B
L
O
W
E
R
S
/
C
O
N
T
R
O
L
S
B
L
O
W
E
R
S
/
C
H
A
R
G
E
C
H
A
R
G
E
C
IR
C
U
IT
#
1
SEE NOTE 1
Relays
B
R
O
W
N
4,8,12,16
B
L
U
E
Relays
To
3,7,11,15
To
COM
COM
CORE
LIMIT
LIMIT
CORE
E
X
P
A
N
S
IO
N
B
O
A
R
D
2
RED
To Optional Static
Heat Recovery System
To Optional Air Handler
COM
COM
NO
RELAY 5
NO
RELAY 6
BLACK/YELLOW
LIMIT
WHITE/BLACK
BLACK/YELLOW
CORE
BLACK
ORANGE
75VA
240v 24v
TRANSFORMER
BLACK
RED
BLUE/RED
BLUE/WHITE
BLUE/BLACK
ORANGE
LIMIT
CORE
Element 13
RELAY 16
RELAY 14
COM
NO
NO
Element 1
Element 2
Element 8
Element 6
Element 7
Element 4
Element 3
Element 5
C
H
A
R
G
E
C
H
A
R
G
E
C
IR
C
U
IT
#
2
C
IR
C
U
IT
#
3
C
IR
C
U
IT
#
4
GROUND BAR
LOW
SPEED
HIGH
SPEED
SEE NOTE 2
