Owner Manual

13.1 Startup Checklist
Verify the following items are addressed before starting the unit:
• If closed loop system, loop and unit are purged of air and all valves are open.
• Ensure a minimum of 20% methanol or 25% Propylene glycol is purged into the loop and
properly mixed.
• Ensure all piping is verified to provide designed flow rate and all valves are open.
• If open loop system, well has pressure (25 PSI – 50 PSI) and all valves are open.
• All air is purged from hot water loop lines and all valves are open.
• All supply grills are installed and unrestricted.
• Return duct and grills are installed and unrestricted with filter installed.
• All service panels to air chamber are closed and secured.
• Supply voltage is correct and matches nameplate.
• Fuses, breakers, and wire sizes are correct.
• Low voltage wiring complete including all thermostats.
• Unit is level for proper condensate drainage
• Service / Access panels are in place with proper clearance to allow service to front and sides
of unit.
13.2 Start Unit
• Reinstall all panels.
• Turn on the main power.
• Adjust thermostat up or down to bring system on. You may experience a time delay up to 5
minutes.
• Check to ensure blower is running.
• Check to ensure compressor is running.
• Check for proper water flow.
• Check hot water loop for water circulation if applicable.
• Set thermostat to desired temperature.
• If well water system, water flow should typically be 2 GPM to 3 GPM per ton.
• If closed loop system, check the temperature of the water in and out. This normally should not
exceed a 10°F to 12 °F difference in temperature.
14.0 Preventative Maintenance
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