JOHNSON CONTROLS
67
SECTION 5 – TECHNICAL DATA
FORM 150.72-ICOM6
ISSUE DATE: 08/03/2022
55
ELECTRICAL NOTES AND LEGEND (CONT’D)
GENERAL
a.
This drawing is based on IEC symbols.
b.
Field wiring must be in accordance with the relevant electrical code and all other applicable codes and specifications.
c.
All sources of supply shown on this diagram must 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 is used for interlock control wiring supplied by external source.
e.
The legend designation depicts component abbreviations. Number prefix located, if applicable, on schematic circuit, refers to
system thereon, for example = 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 240 volts.
The customer must take particular care when deriving the supplies for the voltage free terminals with regard to a common
point of isolation. These circuits when used must be fed through 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 100 VA. 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 30 V 5 mA.
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 must 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 1 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 more 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
115 V control circuit requires a 115 V supply unless control circuit transformer -T2 & -F3 are fitted (standard on CE units).
19
Fitted on hydro kit option. 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. Insulated wire 1E under -F1 is connected to -F1.
20
Only fitted on systems with single speed fans.
21
Only fitted on systems with two speed fans.
22
Optional compressor manual motors starters (standard on CE units).
23
See sheet 3 of connection diagram for power input options.
24
Alternate connections shown for different two speed motor types.
25
Only fitted on systems with a maximum of 4 fans.
26
220/230V units require a separate fuse for units w/4 or more fans per system.
27
Low ambient kit -FSC for fan -MF1 is only fitted on systems with less than 4 fans.
28
Only fitted on YLAA0091, 0220, 0240, 0260 and YLUA0098, 0308
29
Only fitted on YLAA0090, 0091, 0240, 0260, 0285, 0300, 0390 & YLUA0095, 0098, 0148, 0298, 0308, 0468
30
Input dual point circuit breaker option replaces input terminal block.
31
Field installed on remote evaporator units.
