York YCUL0020 Installation, Operation And Maintenance Manual page 50

SECTION 5 – TECHNICAL DATA
a. This drawing is based on IEC symbols.
Field wiring to be in accordance with the relevant electrical code as well as all other applicable codes and
b.
specifications.
All sources of supply shown on this diagram to be taken from one main isolator, not shown or supplied by
c.
YORK.
Green and yellow wire is used for earth, multi-colored cable used for low voltage. Red wire used for AC
d. Control, blue wire for neutral, black wire for AC and DC power. Orange wire should be used for interlock
control wiring supplied by external source.
Legend designation depicts component abbreviations. Number prefix located, if applicable, on schematic
e.
circuit, refers to system thereon, E.G. = 1-FHP2 refers to high pressure cutout no 2 on system no 1.
f. ylaa
g. Customer voltage free contacts connected to terminal 13 must be rated at 30V 5ma.
No controls {relays etc.} Should be mounted in any section of the control panel. Additionally, control wiring
h. not connected to the YORK control panel should not be run through the panel. If these precautions are not
followed, electrical noise could cause malfunctions or damage to the unit and its controls.
i. 120/14.3 -(Signal Input) i.e. 120 is wire # and 14.3 refers to sht. 14 column 3
Refer to installation commissioning operation and maintenance manual for customer connections and
1
customer connection notes, non compliance to these instructions will invalidate unit warranty.
Wiring and components for compressor 3 only fitted when unit has 3 compressors on the system. 1-BMP3
2 is replaced by a link across terminals 134 and 135. 2-BMP3 is replaced by a link across terminals 234 and
235.
3
4 Fitted on units with hot gas bypass option.
5 EMS option is wired as shown.
6 This wiring must be used for old display 031-0110-000.
7 Network connection point.
8 Printer port.
9 Remote emergency stop can be wired between terminal l and 5 after removing link.
10 Power factor correction accessory. Power factor correction fitted to each compressor contactor.
Not fitted on compressors with internal motor protection. For system 1 terminals 132 and 133, 133 and
11 134 and 134 and 135 are linked. For system 2 terminals 232 and 233, 233 and 234 and 234 and 235 are
linked.
12 Only fitted on systems with 3 or 4 fans.
13 Only fitted on systems with 4 fans.
14 Only fitted on systems with 5 fans.
15 Only fitted on systems with 6 fans.
16 Input switch disconnect (standard on CE units) or circuit breaker option replaces input terminal block.
17 Input switch disconnect and individual system circuit breaker option replaces input terminal block.
115V control circuit requires a 115V supply unless control circuit transformer -T2 and -F3 are fitted
18
(standard on CE units).
For optional hydro kit. Heater -EPH is fitted and wired as shown. On single pump -KP1, -QMMSP1 and
19 -MP1 are fitted and wired as shown. On two pump hydro kits -KP2, -QMMSP2 and -MP2 are also fitted
and wired as shown.
20 Current measurement option wired as show.
21 Only fitted on systems with single speed fans.
22 Only fitted on systems with two speed fans.
50
Electrical notes and legend (cont'd)
GENERAL
NOTES
Form 150.63-NM9
Issue date: 5/20/2021
035-21966-101 REVG
JOHNSON CONTROLS