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3.Remove the two screws holding the bezel in place. Turn the bezel over to view the circuit board on the back.
4.Locate the programmed chip on the Power Center Board (the larger square chip in the lower right corner of the circuit board). In the center of the chip is the revision letter. If the revision letter is "H" or higher go to step 5. If the revision level is "G" or lower, replace the chip. Directions for removal and installation of the chip are provided in the new PPD Kit .
NOTE: If ordering a new programmed chip, be sure to order the part number printed on the chip currently in your RS control .
5.Use 22 gauge
6.The wires coming from the LX heater can be “doubled up” on the red terminal bar with the four wires coming from the indoor controller.
NOTE: If you need to install more than two wires in each terminal, order a Waterpik Technologies/ Jandy Multiplex PCB Kit, which includes the Multiplex Board (WP/J part # 6584). Never put more than two wires into each of the pins of the terminal bar.
7.On the heater's electronic control board, verify that the water temperature sensor is connected (J4), and that jumper is in place on W0.
8.Check all wiring, then apply power to both the heater and the RS control system. Operation can be verified in either Service or Auto mode. See your RS Control System for instructions about operation.
When the LX heater is first powered, the display on the control will show "RS ONLINE". If there is an RS control connected to the heater, it will sense the RS unit and remain online. When the display shows "RS ONLINE" all functionality of the control on the heater is disabled. The heater functions can be controlled only at the RS unit. However, sensor data is displayed at both the heater and the RS unit.
To temporarily use the heater controls, use a thin object to depress the button marked "RS SERVICE". The "RS ONLINE" indicator will disappear from the heater display. All functionality has now been returned to the control on the heater. In this mode the RS unit has been disabled. To return the functionality to the RS unit, push the button again.
An interrupt (on/off) type remote can be connected by removing the jumper wire on the terminal block located in the control compartment (see Figure 8) and connecting the two wires from the remote to the two terminals on the terminal block. This type of remote control will turn the heater on or off, but will not perform any other function.
Figure 13. Water Connection as Shipped.
Figure 14. Water Connection Reversed.
Consult with Waterpik Technologies Service Department with questions about installing remote controls manufactured by companies other than Waterpik Technologies.
2I. Water Piping
2I-1. Reversal of Heater Water Connections
The LX and LT are shipped with water connections on the right side, but they can be modified in the field to provide
Heat exchanger reversals are generally done before the installation of power and water to the heater. If you need to reverse the heat exchanger on a previously installed heater be sure that all electrical power and water supply has been turned off before starting the procedure. Water connection reversal is illustrated in Figures 13 and
14. Proceed as follows:
1.Remove the heater front panel (door).
