Installation manual
29
Connecting High Voltage Components to the System Control Center (cont’d)
Filter Pump
Relay #1 is configured by default for use with a single-speed 
pump. While this function can be moved to another relay 
during system configurations, it is rarely practical to do so.
If the filter pump is a two-speed pump, Relay #1 controls 
the low speed. A second high-voltage relay is used for 
controlling the high-speed winding of the pump. 
Two-speed Pumps
The Balboa Poolux Control Center is capable of being 
configured to control one or more two-speed pumps. Two 
high-voltage relays are required for each two-speed pump. 
See the figure below for the required wiring connections. 
The relays used must also be assigned during the system 
configuration. (Relay 4 is the default high speed relay for a 
two speed filter pump.) 
All Other Pumps
All other pumps are connected to the System Control Center 
as any high voltage component. Be sure not to exceed the 
maximum ratings of the high-voltage relays. 
The System Control Center has two (2 - 10AMP) on-
board triac controlled outputs for underwater lighting as 
a standard feature. The light outputs can be individually 
programmed for either on/off or dimmable operation. 
A factory wired GFCI located on the right side of the 
enclosure protects these outputs. The GFCI is located under 
the weather proof door that allows easy access to the TEST 
and RESET buttons. The light circuits are also individually 
fused for added protection. Each output is capable of 
controlling up to 1000W of 120VAC lighting. 
Bring the wires from the lights into the high voltage 
compartment. Connect the ground wire from the lights to 
the grounding bar near the GFCI. Connect the light wires 
to terminal block TB10 for the LIGHT1 circuit or to terminal 
block TB11 for the LIGHT2 circuit. These terminal blocks 
are located on the circuit board near the Main Board 
Transformer as shown in Fig. 12 & FIG. 13. (The wires must 
pass through the holes in the compartment wall that line up 
with each of the terminal blocks.
Fig. 19 Two-speed Filter Pump Example
Filter Pump High
Relay 5
0
2468
1
Relay 1
0
2468
1
Relay 6
0
2468
1
Relay 2
0
2468
1
Relay 7
0
2468
1
Relay 3
0
2468
1
Relay 8
0
2468
1
Relay 4
0
2468
1
/.
/&&
/.
/&&
Filter Pump Ground
Filter Pump Low
Filter Pump Common
Connect the Neutral
(White) wire to Pin 2 of
the terminal block.
Connect the Load
(Black) wire to Pin 1 of
the terminal block.
F
W
H
LIGHT 1LIGHT 2
RELAY 8
A
Y 7
11
1
LT 1LT 2
J22
2
1
TB10
TB11
Light 2 TB11
Light 1 TB10
Neutral
Neutral
Load
Load
UNDERWATER LIGHTSPUMPS










