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Siemens Building Technologies
Basic Documentation LMV5...
CC1P7550en
HVAC Products
10 Description of the connection
terminals (AC 120 V)
13.08.2004
10 Description of the connection
terminals (AC 120 V)
Termi
nal
designa-
tion
Connection symbol
Input
Output
Description Electrical
rating
PIN1
x
Fan motor contactor
AC 120 V +10 % / -15 %, 50...60 Hz,
1 A, (pilot duty), cos
ϕ
0.4
X3-01
PIN2
x
Alarm
AC 120 V +10 % / -15 %, 50...60 Hz,
1 A, (pilot duty), cos
ϕ
0.4
PIN1
x
Air pressure switch (LP)
AC 120 V +10 % / -15 %, 50...60 Hz,
Imax 1.5 mA
X3-02
PIN2
x
Power signal for air pressure switch
(LP)
AC 120 V +10 % / -15 %, 50...60 Hz,
Imax 500 mA
PIN1
x
End switch burner flange
AC 120 V +10 % / -15 %, 50...60 Hz,
Imax 5 A
X3-03
PIN2
x
Power signal for end switch burner
flange
AC 120 V +10 % / -15 %, 50...60 Hz,
Imax 5 A
PIN1
x
Safety loop
AC 120 V +10 % / -15 %, 50...60 Hz,
Imax 5 A
PIN2
x
Power signal for safety loop
AC 120 V +10 % / -15 %, 50...60 Hz,
Imax 5 A
PIN3
x
Protective earth (PE)
PIN4
x
Neutral conductor (N)
X3-04
PIN5
x
Live conductor (L)
AC 120 V +10 % / -15 %, 50...60 Hz,
fuse 6.3 AT
(DIN EN 60 127 2 / 5)
Fuel selection “internal” if pin 1-2 is not
used
PIN1
x
Fuel selection gas
AC 120 V +10 % / -15 %, 50...60 Hz,
Imax 1.5 mA
PIN2
x
Fuel selection oil
AC 120 V +10 % / -15 %, 50...60 Hz,
Imax 1.5 mA
PIN3
x
Fan contactor contact (FCC) or FGR-
PS
AC 120 V +10 % / -15 %, 50...60 Hz,
Imax 1.5 mA
X4-01
PIN4
x
Reset / manual lockout
AC 120 V +10 % / -15 %, 50...60 Hz,
Imax 1.5 mA
PIN1
x
Protective earth (PE)
PIN2
x
Neutral conductor (N)
X4-02
PIN3
x
Ignition
AC 120 V +10 % / -15 %, 50...60 Hz,
1.6 A, (pilot duty), cos
ϕ
0.2
PIN1
x
Protective earth (PE)
PIN2
x
Neutral conductor (N)
X4-03
PIN3
x
Start signal or PS relief (APS test valve) AC 120 V +10 % / -15 %, 50...60 Hz,
75 VA, (pilot duty), cos
ϕ
0.4