Waterpik Technologies LG 2G. Water Flow System, 2F-3. Remote Operation Model LD Only

Model LG & LD Pool and Spa Heater Page 9

Figure 8. Field Wiring Connections (LD).

Figure 9. Time Clock Wiring.

To install a time clock auxiliary switch into the heater wires (see Figure 9):

1.Remove heater door.

2.Remove the factory installed wire between terminals 1 and 2 on the terminal strip (see Figure 9).

3.Connect the wires from the time clock auxiliary switch to the two terminals. Use American Wire Gage (AWG) No. 14 gauge stranded copper wire with a temperature rating of 221°F (105°C) or greater.

The length of the wire between the heater and the time clock should not exceed 10-15 feet (4.57 m). The contact points of the time clock switch should be silver, or a low resistance alloy.

2F-3. Remote Operation

(Model LD Only)

The Laars Lite 2 pool/spa heater controls can be wired for remote operation. The CS-02 remote control permits switching from one temperature controller to the other and turning the heater on and off from a remote location. The CS-04 includes the same features as the CS-02 plus a remote tempera- ture controller. Contact Waterpik Laars for further information. Reference part numbers CS-02 and CS-04.

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 6) 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 switch between the two temperature controllers on the temperature control panel or allow for temperature adjustments.

To connect a 3-wire remote (not supplied by Waterpik Laars) to a Laars Lite 2 LD heater, order a wire harness assembly (part No. E0120000) which connects to the temperature control panel. Installation instructions are included with the wire harness assem- bly.

Consult with Waterpik Laars Service Department with questions about installing remotes other than Waterpik Laars.

2G. Water Flow System

2G-1. Flange Installation

The heater has 2" NPT universal header cou- plings. You can connect threaded 2" NPT iron pipe, unthreaded 1-1/2" iron pipe, 1-1/2" or 2" copper pipe without an adapter (see Figure 10).

Plastic piping (PVC Schedule 40) can be con- nected to the heater if local codes allow it, by using the CPVC nipples included with your heater.

To install plastic piping (see Figure 11):

1.Remove CPVC nipples from plastic bag.

2.Screw CPVC nipples into metal flange until tight, using teflon tape on plastic threads.

3.Attach PVC plumbing to CPVC pipes using PVC to CPVC cement only.