York YCAS0098EB, Installation Operation & Maintenance, Page: 62 / 184

62
JOHNSON CONTROLS
Technical Data
WIRING DIAGRAM
ACROSS-THE-LINE START
NOTES:
1. Field wiring to be in accordance with the current edition of
the National Electrical Code as well as all other applicable
codes and specifications.
2. Numbers along the right side of a diagram are line iden-
tification numbers. The numbers at each line indicate the
line number location of relay contacts. An unlined contact
location signifies a normally closed contact. Numbers adja -
cent to circuit lines are the circuit identification numbers.
3. Any customer supplied contacts must be suitable for
switching 24VDC. (Gold contacts recommended.) Control
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 flow switch
(FSLW). See Note 3 for contact rating and wiring specifi -
cations. Also refer to cautions on page 63.
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 connected
between terminals 5 and 1. Device must have a minimum
contact rating of 100VA at 115 volts A.C.
6. Alarm contacts are for annunciating alarm/unit malfunc-
tion. Contacts are rated at 115V, 100VA, resistive load only,
and must be suppressed at load by user.
7. See Installation, Operation and Maintenance Manual when
optional equipment is used.
8. Control panel to be securely connected to earth ground.
9. Use 2KVA transformer in optional transformer kit unless
there are optional oil separator sump heaters which neces-
sitates using a 3KVA transformer.
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
LD06991
LD06992A
FIG. 16 – WIRING DIAGRAM – ACROSS-THE-LINE START