Typical system line voltage wiring diagram, Appendix a ppendix, Use copper or aluminum conductors rated for 75 – Steffes 9180 User Manual
Page 28: C or higher for field connection of this device, Lug ground, Neutral, Ground lug, A.08 a, A.07

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a
ppendix
A.08
a
ppendix
A.07
a
ppendix
a
ppendix
typical System line voltage Wiring Diagram
9150 aPPLICaTION
240V 1-PHaSE 2 WIRE
9150 aPPLICaTION
277/347 3-PHaSE 3 WIRE
Use copper or aluminum conductors rated for 75
o
C or higher for field connection of this device.
BLACK/YELLOW
CORE
HIGH
COM.
#9
Element
#3
#1
Element
Element
#7
#5
Element
L2 240
L2 120
BLOWER
RESISTER
5 Amp
L1
RESET
RESET
MANUAL
EXCHANGER
LIMITS
N.C.
AUTO
N.C.
225 °
250 °
4uf
DAMPER
RESISTER
BASE IO BOARD
COM
NO
TRANSFORMERS
240v / 24v
Element
Element
#11
NO
COM
NO
COM
1/4 Amp
NO
COM
Optional Static Heat
Recovery Unit (240V)
Secondary Pump Power
(Variable Speed)
Primary Pump Power (240V)
#10
#3 Relay
#4 Relay
#1 Relay
Element
#2 Relay
#4
#2
Element
#7 Relay
#5 Relay
#8 Relay
#6 Relay
Element
#8
#6
Element
#11 Relay
Element
#12 Relay
#17 Relay
Element
#18 Relay
#12
Lug
Ground
WHITE
Cap.
RED
}
} }
BLOWER
#3 Right
#4 Left
Element Relay
#2 Left
Element
#2 Left
Element
#4 Left
Element Relay
Element
#1 Right
Element
#3 Right
#1 Right
Element Relay
Element Relay
Element Relay
Element Relay
Element Relay
#10 Left
#8 Left
Element
#8 Left
#10 Left
Element
#6 Left
#6 Left
Element
#12 Left
#12 Left
Element
Element Relay
Element Relay
Element Relay
Element Relay
Element
#7 Right
Element
#9 Right
#7 Right
#9 Right
#5 Right
#5 Right
Element
Element Relay
Neutral
#11 Right
#11 Right
Element
Ground
Lug
MANUAL
COM.
WHITE
4uf
Cap.
HIGH
RESET
BLOWER
CORE
5 Amp
Secondary
L1
L2
Neutral
Ground
L2 120
L1
L2 240
BLOWER
ORANGE
Transformer
120/240 VAC
COM
NO
COM
NO
NO
NO
1/4 Amp
COM
COM
EXCHANGER
LIMITS
N.C.
AUTO
DAMPER
RESISTER
RESISTER
RED
BLUE
BLACK
RESET
225 °
250°
N.C.
BASE IO BOARD
TRANSFORMERS
240v / 24v
}
}
PRIMARY PUMP POWER
(VARIABLE SPEED)
SECONDARY PUMP POWER
OPTIONAL STATIC HEAT
RECOVERY UNIT (240V)
NEUTRAL
(240V)
}