York YCAS0295EB, Installation Operation & Maintenance

Page: 64 / 194

64 YORK INTERNATIONAL
FORM 201.19-NM7 (804)
Technical Data
WIRING DIAGRAM
WYE-DELTA START
FIG. 20 –
WIRING DIAGRAM – WYE-DELTA START
NOTES:
1. Field wiring to be in accordance with the current edi tion of
the National Electrical Code as well as all oth er ap pli ca ble
codes and specifi cations.
2. Numbers along the right side of a diagram are line iden ti -
fi ca tion numbers. The numbers at each line in di cate the line
number lo ca tion of relay contacts. An unlined contact loca-
tion signifi es a nor mal ly closed contact. Numbers adjacent
to circuit lines are the cir cuit iden ti fi ca tion numbers.
3. Any customer supplied contacts must be suitable for
switching 24VDC. (Gold contacts rec om mend ed.) Con-
trol Wiring must not be run in the same conduit with any
line voltage wiring.
4. To cycle unit on and off automatically with contact
shown, install a cycling device in series with the fl ow
switch (FSLW). See Note 3 for contact rating and wiring
specifi cations. Also refer to cau tions on page 67.
5. To stop unit (Emergency Stop) with contacts other than
those shown, install the stop contact between 5 and 1. If
a stop device is not installed, a jumper must be con nect ed
between ter mi nals 5 and 1. De vice must have a min i mum
contact rating of 100VA at 115 volts A.C.
6. Alarm contacts are for annunciating alarm/unit mal func -
tion. Con tacts are rated at 115V, 100VA, re sis tive load only,
and must be suppressed at load by user.
7. See Installation, Operation and Maintenance Man u al when
op tion al equipment is used.
8. Control panel to be securely connected to earth ground.
LEGEND
Transient Voltage Suppression
Terminal Block for Customer Connections
Terminal Block for Customer Low Voltage
(Class 2) Connections. See Note 2
Terminal Block for YORK Connections Only
Wiring and Components by YORK
Optional Equipment
Wiring and/or Components by Others
T S
7.
LD09231
7.
LD09232
035 15164 103
Rev F