Technical information

12/01/02

Note:

All Electrical connections must be made in accordance

with all national and local electrical codes.

Transformer Application

All 208-230V models include a 115V transformer with a

208/230V selector switch. Be sure to select the position

that best matches the incoming voltage prior to supplying

power to the unit. (Voltage from the center tap to case

ground will be 67.5V due to the transformer circuit.)

208/230V models include 115V controls. They require a

115 / 208-230V circuit which has 4 wires including L1, L2,

dedicated neutral, and ground.

If a dedicated neutral is not available or the previous unit

used a 3 wire circuit, (L1,L2, & gnd.) a step-down trans-

former can be used at the unit to provide power to the

115V components. This will save on installation time and

cost if a dedicated neutral is not present.

Transformer # 4A0817-01 or equivalent can be used for

KM models. Transformer # 446240-01 or equivalent can

be used for F-1000 models. The transformer should be

mounted inside the compressor compartment and wired

using the following generic diagram.

L1 N L2

BK W BN

GND. L1 L2

230V 208V

UNIT

12/20/03

2/20/03