Johnson Controls YORK Tempo YLAA Series, Installation Operation & Maintenance

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FORM 150.72-NM1 (1020)
69
JOHNSON CONTROLS
55
ELECTRICAL NOTES AND LEGEND (CONT’D)
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 isolation. 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 malfunctions or damage to the unit and its controls.
I. 120/14.3 - (Signal IN/OUT) i.e. 120 is wire # and 14.3 refers to SHT. 14 column 3.
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
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.
035-21966-101 REV G