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15.0 120/240 VAC Convertible Circuit Diagram
This wiring diagram is used for all US/Canada convertible power
Caprio, Metro, and Solo Models with 120/240 VAC (60 Hz) power
requirements.
Ozonator
O
3
GRN
TB1
Standard 120 VAC 3-Wire Connection
(60 Hz, 1 Phase, 15 A Service)
Use copper conductors ONLY. Wire size must be
appropriate per NEC and/or local codes.
WHT
WHT
WHT
WHT
WHT
BLK
BLK
RED
BLK
BLK
BLK
BLK
BLK
RED
RED
RED
BLK
321
Heater
1.0 kW @ 120 VAC
4.0 kW @ 240 VAC
Flow Switch
Hi-limit/Freeze
Sensor
Temperature Sensor
J2
J3
F1
20A
250V
SC-20
Circ.
Pump
Main
Pump
Spa Light
Transformer
120 VAC
J4
BLK
RED
*
GRN
TB1
WHT
BLK
RED
321
Optional 120/240 VAC
4-Wire Convertible
Heater Connection
1. Remove and discard the
factory installed GFCI Cord.
2. Move RED
*
wire from TB1
position #1 to TB1 position #3
as shown below.
3. Permanently connect to
the power supply.
Use
copper conductors ONLY.
Wire size must be
appropriate per NEC and/or
local codes.
4. If hot tub is to be operated
on 30A service, make sure
the jumper provided at
location JP1 #1&2 on the
circuit board is installed. If
hot tub is to be operated on
40A service, remove the
jumper JP1 #1&2 on the
circuit board.
HILO
JP1
4
2
3
1
65
87
Logic Jumper Settings (Factory Defaults Shown)
JP1 1-2 ON = 15A Logic (3-wire 120 VAC operation only)
JP1 1-2 ON = 30A Logic (4-wire 120/240 VAC operation only)
JP1 1-2 OFF = 40A Logic (4-wire 120/240 VAC operation only)
JP1 7-8 ON =
°C Temperature Display
JP1 7-8 OFF =
°F Temperature Display
J20
J21
J12
J14
J16
J11
J15
J13
J17 J7 J8 J9 J10
J5
J6
Heater IN Heater OUT
F1*
K1
K2
K3
K4
K5 K7 K8
J1
Control
Panel