Manual
14
Wiring Checks
WIRING CHECK PRECAUTIONS
When working in a system box always be aware that it UÊ
may contain high voltage.
Always keep your fingers and hand tools away from any UÊ
wiring or circuit board when the power is on. Touching
anything in these areas can result in serious injury.
All service calls, no matter how minor, should in-UÊ
clude a complete wiring check, beginning with the
house breaker.
CHECK FOR LOOSE CONNECTIONS OR
DAMAGED WIRES
Make sure the power is off before you touch any wiring.UÊ
Once the power is off, carefully examine all wires for UÊ
cuts or defects.
SYSTEM BOX WIRE GAUGE CHECK
When inspecting the wiring for any control system, note
that connections for the incoming wires are clearly labeled
at the main terminal block.
30A service – minimum ten gauge copper wire.UÊ
40A service – minimum eight gauge copper wire.UÊ
50A service – minimum six gauge copper wire.UÊ
These wires must connect the house breaker box,
through the local disconnect, to the main terminal block.
The wiring diagram inside the system box shows the main
terminal block as TB1.
IMPORTANT
Using non-copper wire can be dangerous, and also can be
the cause of a spa’s malfunction. If non-copper wire
is used at any point, we do not recommend servicing the
spa until an electrician replaces it with the proper gauge
copper wire.
IMPORTANT
This service must be single phase. Any abnormal volt-
age reading requires an electrician. Do not attempt to fix
these types of problems yourself. High voltage can
seriously injure or kill.
To
t
al
Ampere Rating o
f
P
ower System
M
inimum wire size
Use Copper ONLY
,
w
i
t
h
90
o
C
insulation
A
mpere Rating o
f
G.F.C.I. Circuit-breake
r
0
A
to 1
6
A
#12 AW
G
20
1
6
A
to 2
0
A
#
10 AW
G
25
2
0
A
to 24
A
#
10 AW
G
30
24
A
to 2
8
A
#8 AW
G
35
28
A
to
3
2
A
#8 AW
G
4
0
3
2
A
to
36
A
#6 AW
G
4
5
36
A
to 4
0
A
#6 AW
G
50
RED AC
WHT AC
BLK AC
J32
J61 J62
J11
J66 J65
J15
J16
J25
J63
J64
J33 J34
J36 J37
J35
TB1
CLASS G FUSE 30A
F5
K4
Balboa
TORQUE
RANGE
FOR TB1:
27-30 IN. LBS.
HOT
BLACK
NEUTRAL
WHITE
HOT
RED
TB1