Install Instructions

40
Single Zone High Efciency Wall Mounted Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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ELECTRICAL WIRING
•Ifpowerwiresarenotproperlyterminatedandfirmlyattached,thereisriskoffire,electricshock,andphysicalinjuryordeath.
•Nevergroundtheshieldofthecommunicationscabletotheindoorunitframeorothergroundedentitiesofthebuilding.
•Neverapplylinevoltagepowertothecommunicationscableterminalblock.Ifcontactismade,thePCBsmaybedamaged.
•Alwaysincludesomeallowanceinthewiringlengthwhenterminating.Providesomeslacktofacilitateremovingtheelectrical
panelswhileservicing.
Figure 54: Single Zone Outdoor and Indoor Wiring and Communications
Cable Diagram
:Copper Wire
Terminate multiple power wires of
the same gauge to both sides.
Do not terminate two wires on
one side.
Do not terminate different gauge
wires to a terminal block.
Ring Terminal
Power Wiring
Connecting the Power Wiring
Guidelines
Best practice dictates using ring or spade terminals to terminate
power wiring at the power terminal block (Figure 55).
If ring terminals or spade clips are not available, then:
Donotterminatedifferentgaugewirestothepowerterminalblock.Slack
inthewiringmaygenerateheatandre.
•Whenterminatingwiresofthesamethickness,followtheinstruc-
tionsdemonstratedintheillustrationsbelowatFigure56.
•Firmlyattachthewire;secureinawaytopreventexternalforces
frombeingimpartedontheterminalblock.
•Useanappropriatelysizedscrewdriverfortighteningtheterminals.
•Donotovertightentheconnections;overtighteningmaydamage
theterminals.
Figure 55: Close up of a Typical Ring Terminal
Figure 56: Proper and Improper Power Wiring Connections
Power Wiring Specications and Best Practices
6/16” ± 2/16”
13/16”
GN/YL
Power Wiring, Ground
to Outdoor Unit
Power Wiring, Ground,
Communication Cable
From Outdoor Unit
To Indoor Unit
13/16”
GN/YL
Line Voltage
(208/230V)
GN/YL = (Ground, Yellow)
6/16” ± 2/16”
For 9/12K Indoor Units: AWG 14
For 18K Indoor Units: AWG 12
For 9/12/18K Indoor Units: AWG 18