Kelvinator JT4BE048KA Instruction Manual download pdf (Page 11)

ELECTRICAL CONNECTIONS

WARNING:

ELECTRICAL SHOCK, FIRE OR

EXPLOSION HAZARD

Failure to follow safety warnings exactly could

result in serious injury or property damage.

Improper servicing could result in dangerous

operation, serious injury, death or property

damage.

• Beforeservicing,disconnectallelectricalpower

to the indoor blower.

• Whenservicingcontrols,labelallwiresprior

to disconnecting. Reconnect wires correctly.

• Verifyproperoperationafterservicing.

• Electrical connections must be in compliance with

all applicable local codes and ordinances, and with

the current revision of the National Electric Code

(ANSI/NFPA 70).

• ForCanadianinstallations,theelectricalconnections

and grounding shall comply with the current Canadian

Electrical Code (CSA C22.1 and/or local codes).

Pre-Electrical Checklist:

√ Verify the voltage, frequency, and phase of the supply

source match the speciﬁcations on the unit rating plate.

√ Verify that the service provided by the utility is sufﬁcient

to handle the additional load imposed by this equipment.

See the unit wiring label or Table 10, (page 28) &

Table 11, (page 29) for proper high and low voltage

wiring.

√ Verify factory wiring is in accordance with the unit wiring

diagram (Figure 17 (page 25), Figure 18 (page 26),

& Figure 19 (page 27)). Make sure the connections

didn’t loosen during shipping or installation.

Line Voltage

• An electrical disconnect must be located within sight

of and readily accessible to the unit. This switch shall

be capable of electrically de-energizing the outdoor unit.

See unit data label for proper incoming ﬁeld wiring. Any

other wiring methods must be acceptable to authority

having jurisdiction.

• Itisrecommendedthatthelinevoltagetotheunitbe

supplied from a dedicated branch circuit containing the

correct fuse or circuit breaker for the unit.

• Overcurrentprotectionmustbeprovidedatthebranch

circuit distribution panel and sized as shown on the unit

rating label and according to applicable local codes.

See the unit rating plate and Table 10, (page 28) &

Table 11, (page 29) for maximum circuit ampacity

and maximum overcurrent protection limits.

• The installer should become familiar with the wiring

diagram/schematic before making any electrical

connections to the unit. See the unit wiring label or

Figure 17 (page 25), Figure 18 (page 26), & Figure

19 (page 27).

• Useonlycopperwireforthelinevoltagepowersupply

to this unit. Use proper code agency listed conduit and

a conduit connector for connecting the supply wires to

the unit. Aluminum supply wire may be used if a heater

kit is installed.

• Ifreplacinganyoftheoriginalwiressuppliedwiththe

unit, the replacement wire must be copper wire consisting

of the same gauge and temperature rating.

• Providepowersupplyfortheunitinaccordancewiththe

unit wiring diagram, and the unit rating plate. Use UL

listed conduit and conduit connectors for connecting the

supply wires to the unit and for proper grounding. Field

supplied bushings for the power supply cables must be

added to support and protect the power supply cables.

• All208/230Voltunitsareshippedfromthefactorywired

for 240 volt operation. For 208V operation, remove the

lead from the transformer terminal marked 240V and

connect it to the terminal marked 208V.

Grounding

WARNING:

The unit cabinet must have an uninterrupted or

unbroken electrical ground to minimize personal

injury if an electrical fault should occur. Do not

use gas piping as an electrical ground!

This unit must be electrically grounded in accordance

with local codes or, in the absence of local codes, with

the National Electrical Code (ANSI/NFPA 70) or the CSA

C22.1 Electrical Code. Use the grounding lug provided in

the control box for grounding the unit.

Thermostat Connections

• Thermostat connections shall bein accordancewith

the instructions supplied with the thermostat. The

thermostat used with this equipment must operate in

conjunction with any installed accessories. Typical AC

and air handler hookups are shown in Figure 9 (page

12).

CAUTION:

Isolation must be maintained from the external

Class 2 output of any transformer in a cooling

circuit. Use a thermostat with isolating contacts

to prevent inter-connection of Class 2 outputs.

• Wherelocalcodesrequirethatthethermostatwiring

must be routed through a conduit or raceway, splices

can be made inside the unit; however, all wiring must

be NEC Class 1 and separated from incoming power

leads.

• Thethermostatshouldbemountedabout5feetabove

the ﬂoor on an inside wall. DO NOT install the thermostat

on an outside wall or any other location where its

operation may be adversely affected by radiant heat from

ﬁreplaces, sunlight, or lighting ﬁxtures, and convective

heat from warm air registers or electrical appliances.

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Kelvinator JT4BE048KA Instruction Manual Page 11

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