North American Dover Convertible Circuit Diagram - Sundance Spas 780 series Owner's Manual

780 SERIES
15.0 North American Dover Convertible Circuit
Diagram
This wiring diagram is used for all North American 120/240 VAC (60 Hz)
convertible power models.
Light DCU
Ports 1-10
power spa
lights, waterfall
1 6
lights and step
2 7
lights on
applicable
3 8
models
4 9
5 10
Mini-Din Control
Panel Cable
EXP BAR EXP BAR
POWER
Mini-Din Cable provides
constant 12 VAC from
yellow transformer wires
OR
LED Lighting
System DCU
CLEARRAY
Circ.
C
Pump
(not offered
on all models)
Plug-in
GFCI
Cord (US
Models
Only) OR
Hard
Wire
GRN
WHT
BLK
WARNING, ELECTRICAL SHOCK HAZARD EXISTS! Always remove power to spa before wiring and/or configuring the circuit board
Hard
Wire
GRN
Only
TB1
WHT
WHT
1
BLK
BLK
2
3
RED
Page 50
Transformer
120 VAC
J20
J21
J12
BLK
J14
J16
BLK
F1
J11
WHT
J15
K5
J5
WHT
J13
F1 J6
WHT
20A J17
250V
SC-20
Main Pump
BLK
WHT
LO HI
BLK
WHT
TB1
Standard 120 VAC 3-Wire Connection (60 Hz, 1 Phase, 15A Service),
1
USE COPPER CONDUCTORS ONLY. WIRE SIZE MUST MEET NEC RECOMENDATIONS
BLK
AND/OR LOCAL CODES AND IS DETERMINED BY MAXIMUM CURRENT DRAW AND
2
LENGTH OF RUN.
3
Optional 4-Wire 240/120 VAC 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.
EXTERNAL SERVICE PANEL
BOX DISCONNECT MEANS
MUST BE LOCATED NO CLOSER
THAN 5 FT. (1.52m) FROM THE
INSIDE WALLS OF THE SPA AND
WITHIN SIGHT OF SPA
MAIN POWER
ON//OFF SHUTOFF
SWITCH
Control
Control
Panel
Panel
JP1
8 7
Temperature Sensor
6 5
4 3
2 1
J2
Hi-limit/Freeze Sensor
J3
This device complies with Part 15 of the
FCC rules. Operation is subject to the
following two conditions:
K7 K8
1. This device may not cause harmful
2. This device must accept any inteference
Heater IN Heater OUT
J9
J7 J8 J10
BLK RED BLK
RED
(Located inside the heater for certain models)
THERM
THERM
SWITCH
SWITCH
RED
J1 Logic Jumper Settings
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
Pressure Switch
interference.
received including interference that may
cause undesired operation.
Heater
1.0 kW @ 120 VAC (3-wire connection)
4.0 kW @ 240 VAC (4-wire connection)
DANGER
!
RISK OF SHOCK OR
ELECTROCUTION!
Turn power off
before servicing. This
task should only be
performed by a quali-
fied technician.