York R-407C Manuel D’Utilisation

YORK INTERNATIONAL

FIG. 3 – SINGLE-POINT POWER SUPPLY WIRING WITH NON-FUSED DISCONNECT

Power Side

Field Power
Supply

Earth

Ground

Line 3

Line 2

Line 1

Wiring Terminal
Block

Control Side

1L1

1L2

1

L

3

G

ND

Electrical / Controls Box

Molded
Case
Disconnect
Switch

1. All field wiring must be provided through a field-supplied fused disconnect switch to the unit terminals (or optional molded

disconnect switch).

2. All electrical wiring must be made in accordance with all N.E.C. and/or local code requirements.

3. Minimum Circuit Ampacity (MCA) is based on U.L. Standard 1995, Section 36.14 (N.E.C. Section 440.34).

4. Maximum Dual Element Fuse size is based on U.L. Standard 1995, Section 36.15 (N.E.C. Section 440.22)

5. Use copper conductors only.

6. On units with an optional disconnect switch, the supplied disconnect switch is a “Disconnecting Means” as defined in the N.E.C. Section

100, and is intended for isolating the unit from the available power supply to perform maintenance and troubleshooting. This disconnect
switch is not intended to be a Load Break Device.

LD06415