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NS SPLIT INSTALLATION MANUAL
15. Adjust the heating setpoint below room temperature and verify that the compressor and water valve or loop pumps
deactivate.
16. During all testing, check for excessive vibration, noise or water leaks. Correct or repair as required.
17. Set system to desired normal operating mode and set temperature to maintain desired comfort level.
18. Instruct the owner/operator in the proper operation of the thermostat and system maintenance.
Notes: Be certain to ll out and forward all warranty registration papers.
Final Evaluation
After the initial check of superheat/subcooling values in the heating mode, shut off the unit and allow it to sit 3 to 5
minutes until pressures equalize. Restart the unit in the cooling mode and check the values against those in tables on
page 24. If the unit performs satisfactorily, charging is complete. If the unit does not perform to specications, the charge
may need to be readjusted until the values are close. Adding refrigerant will increase subcooling. Recovering some of the
refrigerant will decrease subcooling and increase superheat. If the superheat/subcooling values are still not close to the
specications in tables on page 24, analyze refrigerant circuit operation.