Siemens QF120A Instructions For Installation page 2

protection, the load circuit wiring should be
separated from other wiring by suitable
insulation, barriers or restraints.
To minimize false tripping do not connect to
swimming pool equipment installed prior to
adoption of the 1965 National Electrical Code.
Figure 1
G
J
H
B
C
TROUBLESHOOTING
Problem: GFCI does not trip after pressing the test button.
Possible Cause
Panelboard is not energized
The circuit breaker handle is in the "OFF" position
The circuit breaker is in the tripped position
Panel neutral (pigtail) is not connected to the
neutral bus bar
Problem: GFCI trips immediately after the GFCI or a connected device has been turned on.
Possible Cause
The ground-fault circuit interrupter is not wired
properly.
Short-circuit
GFCI does not have a dedicated neutral
GFCI does not have the correct neutral
A ground-fault condition exists
Problem: GFCI trips after it has been turned on, but not immediately
Possible Cause
The ground-fault circuit interrupter is not wired
properly.
Overloaded circuit
A ground-fault condition exists
If solutions do not work, the
GFCI will need to be replaced if the following conditions are displayed by the LED
LED (J): On or Blinking
Siemens Industry, Inc.
Norcross, GA
© 2017 Siemens Industry, Inc. All Rights Reserved.
dérivation accidentelle de la protection, le
câblage de circuit de charge doit être séparé
de l'autre câblage par un revêtement, un
écran ou un assujettissement appropriés.
Pour minimiser les faux déclenchements, ne
pas brancher à de l'équipement de piscine
installé avant l'adoption du Code électrique
national 1965.
INSTALLATION INSTRUCTIONS
See Figure 1
1.
A
2.
3.
F
4.
5.
I
6.
D
7.
E
8.
TESTING INSTRUCTIONS
1.
2.
3.
The GFCI breaker is functioning properly when:
1.
2.
If the LED (J) blinks, stays on and/or the device does not trip, this indicates the device is no longer
functioning properly and should be replaced by a qualified electrician.
Solution
Check to ensure that the panelboard is energized.
The circuit breaker handle must be in the "ON" position.
Reset the circuit breaker by switching the handle to the "OFF" position and then to the "ON" position.
Check that the load power wire, panel neutral (pig- tail) wire and load neutral wire are properly
connected.
Solution
Check that the load power wire, panel neutral (pig- tail) wire and load neutral wire are properly
connected. A qualified electrician should make the repairs.
If the GFCI trips when a device is turned on, remove the device from the circuit and turn the GFCI on. If the
GFCI does not trip this would indicate a short in the device. A qualified electrician should make the repairs.
Check wiring to ensure that there are no shared neutral connections.
Check wiring to ensure the load power wire and load neutral wire are from the same branch circuit
If the GFCI trips, then you have a ground-fault condition. A common ground fault is a grounded
neutral, which may only cause a trip under load. This occurs when the neutral conductor contacts
a ground conductor. Reset the circuit breaker by switching the handle to the "OFF" position and
then to the "ON" position. If the GFCI trips again, call a qualified electrician to make the repairs.
Solution
Check that the load power wire, panel neutral (pig- tail) wire and load neutral wire are properly
connected. A qualified electrician should make the repairs.
There are probably too many devices plugged into the circuits and overloading the GFCI.
Reset the circuit breaker by switching the handle to the "OFF" position and then to the "ON"
position. If the GFCI trips again, call a qualified electrician to make the repairs.
GFCI circuit breaker must be replaced.
Turn "OFF" and lock out the power to the equipment in which the GFCI is to be installed.
Move the handle of the breaker (A) to the "OFF" position.
Engage the back of the GFCI with the mounting tabs in the panelboard. For the plug in type,
push down firmly on the front end to engage the line terminal stab. For the bolt in type, securely
fasten the line terminal to the panelboard load bus.
Connect the panelboard neutral (pig-tail) (B) wire to a load center or panel neutral bar (C) as
shown in the Fig.1. Torque per specifications on wiring diagram or equipment label.
Strip insulation off load wires to a length of 3/8 in.
Connect load neutral wire (D) into terminal (H) and load power wire (E) to terminal (I) as shown
in Fig.1. Ensure that wire connectors are properly torqued to 25 lb in.
Check wiring to ensure that there are no shared neutral connections.
Instruct the occupants on test procedures and importance of periodic testing.
Turn on power to load center or panelboard.
Turn "ON" the GFCI handle.
Press white test button (F) as shown in Fig.1.
The circuit is interrupted.
The handle moves to the tripped center position (G) as shown in Fig.1.
baipás accidental de la protección, el
cableado del circuito de carga debe estar
separado del otro cableado mediante un
aislante, barreras o restricción
adecuada. Para disminuir la posibilidad
de que se dispare, no conecte a un
equipo de piscina instalado antes de la
adopción del Código de Electricidad
Nacional de 1965.
Pt No. 812422A Rev. 04