Filter
Top Products
43
J-300 Series
J-300 Series
(60 Hz)
This wiring diagram is used for all North American 120/240V 60 Hz
convertible power models.
Note: Optional 120/240 VAC 4-wire connection enhances heater output
from 1kW to 4kW.
Ozonator
(Optional)
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
(All Canadian spas must be hard wired per CSA).
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
Transformer
120 VAC
J4
BLK
GRN
TB1
WHT
BLK
21
Optional 120/240 VAC
4-Wire Convertible
Heater Connection
1. Remove and discard the
factory installed GFCI Cord
(US only, all Canadian spas
must be hard wired).
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
6 5
8 7
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 = Celsius Temperature Display
JP1 7-8 OFF = Fahrenheit Temperature Display
This device complies with Part 15 of the
FCC rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference.
2. This device must accept any inteference
received including interference that may
cause undesired operation.
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
RED*
RED
3
X
W
J-315/J-325
Waterfall Light/
Footwell Light
Controller
12VAC Output to Waterfall Light/
Footwell Light Controller
X
W
43