York YLUA0248 Series, Installation Operation & Maintenance

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JOHNSON CONTROLS
52
FORM 150.73-NM2
ISSUE DATE: 09/07/2020
SECTION 5 – TECHNICAL DATA
ELECTRICAL NOTES AND LEGEND (CONTINUED)
GENERAL
a. This drawing is based on IEC symbols.
b. Field wiring to be in accordance with the relevant electrical code as well as all other applicable codes and specifications.
c. All sources of supply shown on this diagram to be taken from one main isolator, not shown or supplied by YORK.
d.
Green and yellow wire is used for earth, multi-colored cable used for low voltage. Red wire used for AC 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.
e.
Legend designation depicts component abbreviations. Number prefix located, if applicable, on schematic circuit, refers to system
thereon, E.G. = 1-FHP2 refers to high pressure cutout no 2 on system no 1.
f.
All wiring to control section voltage free contacts requires a supply provided by the customer maximum voltage 120 volts. The
customer must take particular care when deriving the supplies for the voltage free terminals with regard to a common point of isola-
tion. Thus, these circuits when used must be fed via the common point of isolation the voltage to these circuits is removed when the
common point of isolation to the unit is opened. This common point of isolation is not supplied by YORK. The YORK voltage free
contacts are rated at 100va. All inductive devices {relays} switch by the YORK voltage free contacts must have their coil suppressed
using standard R/C suppressors.
g. Customer voltage free contacts connected to terminal 13 must be rated at 30V 5ma.
h.
No controls {relays etc.} Should be mounted in any section of the control panel. Additionally, control wiring not connected to the
YORK control panel should not be run through the panel. If these precautions are not followed, electrical noise could cause malfunc-
tions 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
A NOTES
1
Refer to installation commissioning operation and maintenance manual for customer connections and customer connection notes,
non compliance to these instructions will invalidate unit warranty.
2
Wiring and components for compressor 3 only fitted when unit has 3 compressors on the system. 1-BMP3 is replaced by a link
across terminals 134 & 135. 2-BMP3 is replaced by a link across terminals 234 & 235.
3 When not fitted 1-FHP2 is replaced by a link across terminals 132 & 139. 2-FHP2 is replaced by a link across terminals 232 & 239.
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.
11
Not fitted on compressors with internal motor protection. For system 1 terminals 132 & 133, 133 & 134 and 134 & 135 are linked. For
system 2 terminals 232 & 233, 233 & 234 and 234 & 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 & individual system circuit breaker option replaces input terminal block.
18 115V control circuit requires a 115V supply unless control circuit transformer -T2 & -F3 are fitted (standard on CE units).
19
For optional hydro kit. Heater -EPH is fitted and wired as shown. On single pump -KP1, -QMMSP1 & -MP1 are fitted & wired as
shown. On two pump hydro kits -KP2, -QMMSP2 & -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.
23 Optional compressor manual motors starters (standard on CE units).
24 See sheet 3 of connection diagram for power input options.
25 Alternate connections shown for different two speed motor types.
26 Only fitted on systems with a maximum of 4 fans.
27 220/230V units require a separate fuse for units w/4 or more fans per system.
035-21966-101 REVG