Page 25
ENGLISH
Zodiac
®
JXi
™
Gas-Fired Pool & Spa Heater
|
Installation & Operation Manual
7.3
Connect to an AquaLink® or “Smart” Communication via RS-485
To provide “smart” communication between the JXi and
a power center board (PCB) (AquaLink
®
RS, AquaLink
PDA, and AquaLink TRi) through a red four-pin RS485
connector, your PCB must have the appropriate firmware.
To determine the REV of the AquaLink RS PCB
firmware in your system, refer to
Table 4
.
COMPONENTS
REV MMM
OR EARLIER
REV N
OR LATER
RS485
CONNECTORS
One (1) set of
four (4)
Two (2) sets of
four (4)
JVA SOCKETS
24 VAC
Located on top of
board
Located on bottom of
board
RELAY SOCKETS
24 VDC
10 total sockets. Eight
(8) located on bottom,
two (2) on top of board
11 total sockets.
All located on
bottom of board.
Table 4.
AquaLink RS Power Center Board
Identifying Features
Figure 13. Wiring the JXi to a Zodiac
®
Remote
RESET
SERVICE
TIME OUT
FIL
TER PUM
P
A
UX
1
A
UX
2
A
UX
3
A
UX
4
A
UX
5
A
UX
6
A
UX
7
RS6 & RS8 ONLY
RS8 ONLY
HEATER
SOLAR
POOL MODE
SPA MODE
SPA DRAIN
SPA FILL
AUTO
6 5 4 3 2 1
10 9 8 7 6 5 4 3 2 1
4 3 2 1
4 3 2 1
To Sensors, etc.
(green terminal bar)
To Remote
(brown terminal bar)
To Controller
(red terminal bar)
GR
Y
BK R
4 3 2 1
Power Center
Indoor Controller
JXi Control
RS Control
System
Power
Center
Bezel
22 Gauge
4 Conductor
Wire
If your PCB firmware is REV MMM or earlier:
Connect via a 2-wire connection. See
Section 7.2
for
details
.
Figure 14.
PCB with firmware REV MMM or lower
Spa Side
Switch
Sensors and
Heater
JVA Sockets
24 VAC
Relay Sockets
24 VDC
Connection to
Controller:
RS485
Connectors
Relay Sockets
24 VDC
Relay Sockets
24 VDC
Intake
Return
Cleaner
Solar
Solar Pump
Elect Htr
Filter Pump
Aux 1
Aux 2
Aux 3
Aux 4
Aux 5
Aux 6
Aux 7
4 3 2 1
6 5 4 3 2 1
10 9 8 7 6 5 4 3 2 1
RESET
SERVICE
TIME OUT
FIL
TER PUM
P
A
UX
1
A
UX
2
A
UX
3
A
UX
4
A
UX
5
A
UX
6
A
UX
7
RS6 & RS8 ONLY
RS8 ONLY
HEATER
SOLAR
POOL MODE
SPA MODE
SPA DRAIN
SPA FILL
AUTO
If your PCB firmware is REV N or higher:
• Turn off the power to both the heater and the
controller.
• Open the power center enclosure and remove the
front dead panel.
S1
S2
6 5 4 3 2 1
10 9 8 7 6 5 4 3 2 1
4 3 2 1
4 3 2 1
RESET
SERVICE
TIME OUT
FIL
TER PUM
P
A
UX
1
A
UX
2
A
UX
3
A
UX
4
A
UX
5
A
UX
6
A
UX
7
RS6 & RS8 ONLY
RS8 ONLY
HEATER
SOLAR
POOL MODE
SPA MODE
SPA DRAIN
SPA FILL
AUTO
Connection to
Controller:
RS485 Connectors
Spa
Side
Switch
Sensors
and
Heater
Relay Sockets
24 VDC
Relay Sockets
24 VDC
JVA Sockets
24 VAC
Filter Pump
Aux 1
Aux 3
Aux 2
Aux 4
Aux 5
Aux 6
Aux 7
Intake
Return
Cleaner
Solar
Solar Pump
Elect. Htr
.
Spare
Figure 15.
PCB with firmware REV N or higher
Do not connect more than two (2) wires to any of the
terminals in the Control System when connecting
peripheral devices. If connecting the heater to the control
system creates this situation, then a Multiplex PCB Kit,
which includes the Multiplex Board (part # W6584) must
be used.
NOTE:
Only an AquaLink® RS System with firmware revision “N”,
or higher, will support the heater interface. Refer to
Table 4
along
with
Figure 14
and
Figure 15
to determine the REV of your system’s
firmware. If it is “N” or higher, continue with these procedures. If it is
MMM or lower, follow the procedures in Section
7.2
for connecting
to a remote TSTAT.
NOTE:
Only a PDA System with firmware revision 4.1, or higher,
will support the heater interface.
•
Use 22 gauge 4-conductor wire to run between the
heater and the RS control and match the wire color
order. See
Figure 13
.
• The wires coming from the heater can be “doubled
up” on the red terminal bar with the four wires from
the indoor controller.
• Check all wiring, then apply power to both the heater
and the control system. Verify operation in either
Service or Auto mode. Refer to your Control System
manual for operating instructions.
When the heater is connected to an external controller, all
functionality of the heater control panel is disabled,
therefore heater functions can be controlled only from the
controller.
