Jandy LXi - Page 19

LXi
™
Pool/Spa Heater Installation and Operation Manual Page 19
all electrical power, the gas supply and water supply
have been turned off before starting the procedure.
These instructions have been written to include the
steps needed when reversing the water connections on
an existing installation. If you are reversing the head-
ers on a new installation, some steps will be ignored.
Water connection reversal is illustrated in Figures 11
and 12. Proceed as follows:
1. For an existing installation, drain the heater by
removing the two drain plugs on the inlet/outlet
header and the drain plug on the return header.
2. Remove the heater front panel (door).
3. Remove the I/O header side cover plates, top and
bottom. See Figure 13.
4. Remove the return header side cover plate. See
Figure 13.
5. Disconnect the blue "HiLimit" two-pin connector
from the Power Interface board in the raceway.
Clip any wire ties attached to the harness. Feed
the "HiLimit" two-pin connector and wiring back
through the way it is routed to the header so that
the harness hangs free from the header, outside of
the cabinet.
6. Disconnect the two "WATER TEMP" tempera-
ture sensor leads from the Power Interface board
in the raceway. Clip any wire ties attached to the
harness. Pull the wires out of the cabinet so that
they hang free from the header, outside of the
cabinet.
7. Disconnect the yellow "Water Press" two-pin
connector from the Power Interface board in
the raceway. Clip any wire ties attached to the
harness. Feed the "Water Press" two-pin connec-
tor and wiring back through the way it is routed
to the water pressure switch so that the harness
hangs free from the water pressure switch, out-
side of the cabinet.
NOTE Be careful not to create any kinks in the water
pressure switch copper tubing when handling
the header.
8. For an existing installation, remove the coupling
nuts from the header and disconnect the water
supply from the heater.
9. Remove the 10 bolts and washers from the inlet/
outlet header and remove the header from the
tube assembly. Leave the spacer in place.
10. Remove the 10 bolts and washers from the return
header and remove the header from the tube as-
sembly. Leave the spacer in place.
11. For an existing installation, remove the tube
gaskets and clean the header's mating surface of
any corrosion or debris. Replace the tube gaskets
with new ones. Do not use any metal tools on the
Figure 13. LXi Panel Identifi cation
I/O HEADER SIDE
COVER PLATES
TOP AND BOTTOM
SIDE
SUPPORT
RETURN
HEADER SIDE
COVER PLATE
SIDE
LEFT
REAR
PANEL
TOP
PANEL
REAR VENT
COVER
GRILL
FRONT
PANEL
(DOOR)
DOOR
SUPPORT
SIDE
SUPPORT
SIDE
RIGHT
BASE
Figure 11. Water Connections as Shipped
Figure 12. Water Connections Reversed