York YPAL 051 User Manual

JOHNSON CONTROLS

FORM 100.50-NOM6 (1207)

SINGLE-POINT POWER SUPPLY WIRING

WITH NON-FUSED DISCONNECT SWITCH

FIG. 2-10 – SINGLE-POINT POWER SUPPLY WIRING WITH NON-FUSED DISCONNECT

NOTES:

1. All ﬁ eld wiring must be provided through a ﬁ eld-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 dis con nect switch is a “Disconnecting Means” as deﬁ ned in the N.E.C. Section 100,

and is intended for isolating the unit from the available power supply to perform maintenance and trou ble shoot ing. This disconnect switch is
not intended to be a Load Break Device.

Field Power

Supply

Earth

Ground

Line 3

Line 2

Line 1

GND

LD13004