Hayward HPC4-ACT-AQC ECOMMAND-4-Operation-Manual-092420ARevF - Page 5

Two Speed or Variable Speed Filter Pump: If the pump is currently off, simply press the "FILTER" button to turn on high speed operation of the filter pump. The "Filter" LED will illuminate continuously. Pressing the "FILTER" button again will switch to low speed operation and the "FILTER" LED will flash. Note that if the pump has been off for more than 30 seconds, it will run at high(est) speed for 3 minutes regardless of selection. This high speed operation helps allow the pump to prime and establish normal water flow. Freeze Protection: This function protects the pool, plumbing, and equipment against freeze damage. If Freeze Protection is enabled and the AIR temperature falls below the preset freeze protection temperature (see Filter Configuration), the ECOMMAND 4 will turn on the filter pump to circulate the water. Lights, Aux1 and Aux2 Outputs Standard Relay: Manual operation of all 3 relays is identical. Assuming that the relay is currently off, simply press the appropriate button to turn on the relay. If the relay does not turn on, it probably is due to the "interlock" feature (which was set up in the Configuration Menu) being activated that requires the filter pump to be running and the valves to be in the pool-only position. This protects pumps and other equipment from possible damage. If the controlled output is on, pressing the appropriate button again will turn off the relay. Manual turn off is disabled if the "Freeze Protection" feature is enabled and the air temperature is less than the selected freeze temperature threshold. Dimmer Relay: If Lights or an Aux output is configured as a dimmer, pressing the corresponding button will generate a temporary display which shows the dimmer output level (Off - On 100%). Pushing the "+" or "-" button changes the level in increments of 20%. When the desired output level is displayed, press the corresponding button again to turn off the display and return to normal operation. When the Lights or Aux output comes on again (either manually or automatically), the dimmer output level will be the same as the last time that it was set. Pool/Spa Valves Pool-only or spa-only systems: The POOL/SPA button has no function. Pool and Spa systems without spa spillover: In pool-only mode, the left LED next to the POOL/ SPA button is illuminated. Pressing the POOL/SPA button will switch the ECOMMAND 4 to spaonly operation (right LED illuminated). Pressing the POOL/SPA button again will switch back to pool-only. Note that the filter pump will turn off while the pool/spa valves are turning. Pool and Spa systems with spa spillover: In pool-only mode, the left LED next to the POOL/SPA button is illuminated. Pressing the POOL/SPA button will switch the ECOMMAND 4 to spa-only operation (right LED illuminated). Pressing the POOL/SPA button again will switch to spa spillover operation (both LED's illuminated). Pressing the POOL/SPA button again will switch back to poolonly. Note that the filter pump will turn off while the pool/spa valves are turning. 4 USE ONLY HAYWARD GENUINE REPLACEMENT PARTS