Steffes 6140 - Manual (Page 29)

Appendix
Comfort Plus Commercial Appendix
n
A.05
HAZARDOUS VOLTAGE: Risk
of electric shock. Can cause
injury or death. All low volt-
age wiring must be segre-
gated from line voltage
circuits in the system.
WARNING
INTERNAL SYSTEM WIRING DIAGRAM - LOW VOLTAGE
The outdoor temperature sensor, room thermostat, and peak control device are connected via low voltage wiring.
System Low Voltage Wiring Diagram - With Variable Speed
The "R" and "C" positions in the low voltage terminal
strip may be used as a source of 24 VAC for powering
external low voltage devices (60 VA maximum).
DISCHARGE
SENSOR
AIR
"R" ORANGE 3
YELLOW/BLACK
YELLOW
ORANGE
WHITE/RED
WHITE
RED/BLACK
Relay Inputs
Ou
td
o o r
Ou
td
o o r
Pump VAC
24
2
Water
P3 P2 P1
Air
P11
W/
Y1 AUX Y2
J5 Y1 Y2
RLY1
J2 D1
Blower
B
C
D P4
P5
D2
J4
J3
P6
H/E
Speed
Blower
A
O G
J6 W/E
Y1 C R
J1
P
To Control Board
P7
2 Y2 2 O RP
R
P8
C
P9
NC AP COM NO
Thermostat Peak Heat Aux.
GREEN
WHITE
WHITE/BLACK
YELLOW/BLACK
ORANGE
YELLOW
BLUE/BLACK
BROWN
BLACK
WHITE/BLACK
YELLOW/BLACK
ORANGE/BLACK
BLUE
GRAY
RED
BLUE
BLUE/BLACK
YELLOW
WHITE/BLACK
BROWN
BLACK
GRAY
GREEN
ORANGE
WHITE/RED
WHITE
RED/BLACK
RED
ORANGE
WHITE
WHITE/BLACK
CORE
C
RELAY 2
RELAY 1
RELAY 4
RELAY 3
RELAY 5
20V DC
20V DC
RELAY 15
RELAY 14
RELAY 11
RELAY 10
RELAY 12
RELAY 13
CORE
E
CORE
D
RELAY 7
RELAY 6
RELAY 9
RELAY 8
1
TO CONTROL BOARD
18
17
20
19
9
13
15
16
14
11
12
10
6
8
7
3
5
4
2
CORE LIMITS
TO LOW VOLTAGE BOARD
"SC" 19
R
C
BLUE
YELLOW
"RS" 20
TRANSFORMER
GROUNDED
"Y" 11 TX1
"P" 15
"DS"
"OS"
"C"
17
18
16
"G"
"AP"
"O"
13
14
12
75 VA
"COM" 7
"RP"
"E"
"W"
9
10
8
"NO"
"NC"
"O2"
5
6
4
BLUE
75 VA
TX2
TRANSFORMER
UN-GROUNDED
YELLOW
external low voltage devices (60 VA maximum)
The "R" and "C" positions in the low voltage terminal
strip may be used as a source of 24 VAC for powering
CONTROL BOARD
M
YELLOW
YELLOW
NOTE
M
P
M A
"R"
"Y2" 1
2
AIR PLENUM
SPEED SUPPLY
TO VARIABLE
{
BLOWER MOTOR