System Startup Before Startup; And Checkout Heater Checkout - Hayward OnCommand Installation Manual

5. System Startup and Checkout
Before Startup
Before starting the OnCommand for the first time, be sure that the following items have been completed:
1. Properly rated circuit breakers are installed in the OnCommand subpanel.
2. All wiring is performed according to NEC and local codes.
3. The OnCommand is properly grounded and bonded.
4. The OnCommand is properly configured to control all desired functions.
Program Automatic Operation
Refer to the programming flow chart on the back cover of this manual for a listing of the available menus and the
items included in each menu.
Settings Menu
Heater and/or solar thermostat settings
Chlorinator settings (if applicable)
Day and Time
Timers Menu
Timeclock and/or Countdown timer settings
Heater Checkout
Follow these instructions to verify that the OnCommand is properly controlling the heater.
1. Check that the OnCommand is calling for the heater to turn on as indicated by the "Heater" LED being illumi-
nated. If the "Heater" LED is illuminated, go directly to step 2; if not, then check the following:
• The heater is enabled (Configuration Menu/Heater Config.).
• The heater temperature setting is at least 2ºF greater than the water temperature (Settings Menu / Pool
Heater & Spa Heater).
• The filter pump is running.
• If the pool has solar heat and the solar priority feature is enabled (Configuration Menu/Solar Config) then
solar must be off in order for the heater to fire. The easiest way to force solar off is to go to the Settings
Menu / Pool Solar & Spa Solar and temporarily lower the temperature settings below the current water
temperature.
2. Check that the heater is running. If not, then check:
• Power is supplied to the heater.
• The OnCommand control output is properly connected to the heater control (see "Heater Control" wiring,
page 8).
• Some heaters also have internal switches or jumpers that have to be set correctly for remote control
operation—refer to the heater manual and also "Heater Control" (page 8).
• Heater is turned on ("Kill Switch" is in the "ON" position).
• If a heater bypass valve is installed, check that water is flowing through the heater.
• The heater temperature setting is set as high as possible (usually 104ºF/40ºC). Also note that some heat
pumps actually have be set to the lowest possible temperature.
3. Once the heater is running, you can verify the "heater cooldown" feature (optional - see Configuration Menu/
Heater Config.) is operating properly:
• Press the "Filter" button once (for 2 speed pumps, this may require 2 pushes of the "Filter" button).
• The heater should turn off ("Heater" LED off) and the "Filter" LED will flash to indicated heater cooldown
is active.
26