Kelvinator JS4BD030KB Installation Guide download pdf (Page 5)

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

unit wiring diagram, and the unit rating plate. Connect

the line-voltage leads to the terminals on the contactor

inside the control compartment.

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

to this unit as listed in Table 1. Use proper code agency

listed conduit and a conduit connector for connecting

the supply wires to the unit. Use of rain tight conduit

is recommended.

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

for 230 volt operation. For 208V operation, remove the

lead from the transformer terminal marked 240V and

connect it to the terminal marked 208V.

• Optionalequipmentrequiringconnectiontothepower

or control circuits must be wired in strict accordance

of the NEC (ANSI/NFPA 70), applicable local codes,

and the instructions provided with the equipment.

COPPER WIRE SIZE — AWG

(1% Voltage Drop)

Supply Wire Length-Feet

Supply Circuit

Ampacity

200 150 100 50

6 8 10 14 15

4 6 8 12 20

4 6 8 10 25

4 4 6 10 30

3 4 6 8 35

3 4 6 8 40

2 3 4 6 45

2 3 4 6 50

2 3 4 6 55

1 2 3 4 60

WireSizebasedonN.E.C.for60°typecopperconductors.

Table 1. Copper Wire Size

Figure 2. Comfort Alert

Diagnostics Module

POWER LED

(Green)

TRIP LED

(Red)

ALERT LED

(Yellow)

Diagnostics

Key

Comfort Alert

Diagnostics Module

(Select Models Only)

The Comfort Alert

Diagnostics Module (Figure 2) is a

breakthrough innovation that troubleshoots heat pump and

air conditioning system failures and accurately detects

the cause of electrical and system related failures without

any sensors. The module installs easily in the electrical

box of the outdoor unit near the compressor contactor. By

monitoringandanalyzingdatafromtheCopelandscroll

compressor and the thermostat demand, the module can

accurately detect the cause of electrical and system related

failures without any sensors. A ﬂashing LED indicator

communicates the ALERT code and a diagnostic key is

also imprinted on the side of the module to quickly direct

the technician to the root cause of a problem.

NOTE: This module does not provide safety protection!

The Comfort Alert

Diagnostics Module is a monitoring

device and cannot control or shut down other devices.

24 VAC Power Wiring

The Comfort Alert

module requires a constant nominal

24 VAC power supply. The module cannot be powered by

the C terminal on a defrost board or other control board

without experiencing nuisance alerts. NOTE: The wiring

to the module’s R & C terminals must be routed directly

from the indoor unit or thermostat.

If the constant 24 VAC (R wire) is not present in the outdoor

unit, use one of the spare wires in the thermostat cable to

bring power to the module. Connect the other end of the

spare wire to R at the indoor unit or thermostat.

Thermostat Demand Wiring

The Comfort Alert

module requires a thermostat demand

signal to operate properly. The thermostat demand

signal input (labeled Y on the module), should always be

connected to the compressor contactor coil. NOTE: When

thecoilisenergized,thedemandsignalinputis24VAC.

Whenthecoilisnotenergized,thedemandsignalinput

should be less than 0.5 VAC.

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.

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Kelvinator JS4BD030KB Installation Guide Page 5

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