Warning, Internal system wiring diagram - low voltage, Appendix a ppendix – Steffes 9180 User Manual
Page 30
T
herm
e
lecT
h
ydronic
a
ppendix
A.10
a
ppendix
A.09
T
herm
e
lecT
h
ydronic
a
ppendix
a
ppendix
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
HAZARDOUS VOLTAGE: Risk
of electric shock, injury, or
death. All low voltage wiring
must be segregated from line
voltage circuits in the sys-
tem.
WARNING
The "R" and "C" positions in the low voltage terminal
strip may be used as a source of 24 VAC for powering ex-
ternal low voltage devices (60 VA maximum).
LIMIT
CORE
LIMIT
STORAGE
LIMIT
CORE
#1
#2
#3
MODULE
(OPTIONAL)
9180 ONLY
H OS
ORANGE
GRAY/WHITE
BLUE/YELLOW
BROWN
PURPLE
GRAY
GREEN
BLACK
BLUE/WHITE
ORANGE/BLUE
BLUE/RED
BLUE/RED
WHITE
YELLOW
RED
ORANGE
BLUE/WHITE
BLUE
Peak Control Connections
COM
RP
DS
AP
P
NC NO
YELLOW
LIMIT
YELLOW
BLUE
CORE
R
C
75 VA
TRANSFORMER
TX1
75 VA
TRANSFORMER
TX2
YELLOW/BLUE
DISCHARGE WATER SENSOR
SC
PURPLE/WHITE
Terminals for Connection with Heat Pump
R C
Y2
Y
G
W
O2
O