14
EN
Installation
Universal Air Conditioning Unit
6 .10 Start Up Checklist
Refer to this checklist before starting the unit after the initial installation of the air conditioning system.
6 .10 .1 Pre-Start-Up
Unit
Is there any shipping damage? (Y/N)
If so, where?
Will this damage prevent unit start-up? (Y/N)
Does the power supply agree with the unit? (Y/N)
Has the ground wire been connected? (Y/N)
Has the circuit protection been sized and installed properly? (Y/N)
Are the power wires to the unit sized and properly installed? (Y/N)
Has water been placed in the drain pan to confirm proper drainage? (Y/N)
Are the proper air filters in place? (Y/N)
Has the correct air flow been confirmed? (Y/N)
Controls
Are the Q3 control and Temperature Sensing Cables connected
properly? (Y/N)
Are the wiring terminals (including the main power supply) tight? (Y/N)
6 .10 .2 Starting the Unit
1. Turn the circuit breaker for the air conditioner to the On position.
2. Turn the control on.
3. Use the Q3 control to set the system for cooling or heating and to adjust the set point temperature so the unit will turn
on.
4. Once the system is operational, place your hand in front of the supply-air grille to ensure there is a steady stream of air
coming out of the supply-air grille.
5. Allow the unit to run for 30 minutes at high fan speed.
6. Check the temperature differential between discharge and return air by placing an accurate thermometer in front of
the discharge grille and then in front of the return-air grille.
• In Cool Mode, the difference between the discharge and the return should be 15 °F–20 °F (8 °C–11 °C), with normal
ambient air temperature.
• In Heat Mode, the temperature differential can be as high as 25 °F (14 °C).
If the unit does not appear to be operating properly, refer to “Troubleshooting” on page 25.
