Johnson Controls (H,Y,C)IDM012B21S - 8 Electrical Wiring; General Check

20
P00792Q-rev.2
8. Electrical Wiring
8.1 General Check
(1) Make sure that the eld-selected electrical components: (main power switches, circuit breakers, wires,
conduit connectors, and wire terminals) have been properly labeled in accordance with electrical data
as specied in the Engineering Manual. Make sure that the components comply with the National
Electrical Code (NEC).
(2) Check to ensure that the power supply voltage is within ±10% of the rated voltage.
(3) Check the capacity of the electrical wires.
If the power supply capacity is too low, the system cannot be started due to a voltage drop.
(4) Verify that the ground wiring is securely connected.
● Allelectricalworkmustbedoneasoutlinedinthismanualandinaccordancewiththismanual.
Substandardworkcanresultinreanddamagetotheunit.
● Usespeciedcablesbetweenunitsandchoosethecablescorrectly.Ifnot,anelectricalshockor
remayoccur.
● DonotopentheservicecoveroraccesspanelfortheindoororoutdoorunitswithoutturningOFF
themainpowersupply.Itcanresultinanelectricalshock.
● TurnOFFthemainpowerswitchoftheindoorunitandtheoutdoorunitbeforeattemptinganyelectrical
wiringworkoraperiodicalcheckisperformed.Ifnot,itwillresultinanelectricshockorare.
● Checktoensurethattheindoorfanandtheoutdoorfanhavestoppedbeforeattemptingany
electricalwiringworkorforanyscheduledelectricalworkthatisbeingperformed.
● Tightenscrewsaccordingtothefollowingtorque.
 M3.5:0.9ft·lbs(1.2N·m)
 M4: 0.7to1.0ft·lbs(1.0to1.3N·m)
● Secureallcablestogetherwithzip-tiesandsealtheconnectingholeagainsttheonslaughtof
moisture and insects.
● Runtheelectricalwiringthroughtheconnectingholeinthesidecoverwhenusingconduit.
● Securethewiredcontrollercableusingthecableclampinsidetheelectricalbox.