USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
15
Heater Control
The HLBASE OmniLogic provides a set of 4 low voltage dry contacts that can be connected to most heaters with 24V control circuits. When used with the
optional Input/Output Expander Board (HLIOEXPAND), 8 dry contact relays are available. Refer to the following diagrams for wiring connections to generic and
Hayward conventional heaters. For Hayward Smart Heaters, refer to the wiring information on page 16. The manuals supplied with most heaters also include
specific wiring instructions for connecting the heater to an external control (usually identified as “2-wire” remote control). For millivolt or line voltage heaters,
contact Hayward Tech support, 908-355-7995. Refer to the diagram on page 12 for the location of heater connections (LVR) on the OmniLogic Main Board.
Record all connections in the Connection Table.
Generic Heaters
1. Wire heater to 120/240V power source per the instructions in the heater manual. The OmniLogic does NOT control the power going to the heater.
2. Wire the OmniLogic dry contact heater output per the diagram below. Many internal parts of the heater can get very hot--see the heater manufacturer’s
recommendations on the minimum temperature rating for wires. If no guidance is given, use 105°C rated wire.
3. Set any ON/OFF switch on the heater to ON.
4. Set the thermostat(s) on the heater to the maximum (hottest) setting.
Hayward Pre-2007 Heaters
Refer to the instructions in the heater manual for “2-wire Remote Thermostat” operation under “Remote Control Connections” and the diagram below:
1. Turn off power to heater.
2. Wire OmniLogic to terminals 1 & 2 (see diagram).
3. Leave jumper attached to terminals 4 & 5.
4. Move “BYPASS” dipswitch on heater circuit board to “ON” position (up).
5. Turn heater power back on.
6. Switch heater to either “Pool” or “Spa” (it doesn’t make any difference which is selected, the OmniLogic will take control).
7. Heater display should be “bO” (for “bypass On).
8. Heater will start whenever OmniLogic requests (when OmniLogic “Heater” LED is illuminated).
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