Wiring Diagram Across-The-Line Start - York YCAS Series Installation Operation & Maintenance

Technical Data
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
identification numbers. The numbers at each line in-
dicate the line number location of relay contacts. An
unlined contact location signifies a normally closed
contact. Numbers adjacent 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 wir-
ing specifications. Also refer to cautions on page 57.
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. Contacts are rated at 115V, 100VA, resistive load
only, and must be suppressed at load by user.
7. Control panel to be securely connected to earth
ground.
8. Us 2KVA transformer in optional transformer kit un-
less there are optional oil separator sump heaters
which necessitates using a 3KVA transformer.
LEGEND
T S Transient Voltage Suppression
Terminal Block for Customer Connections
Terminal Block for Customer Low Voltage
(Class 2) Connections.
Terminal Block for YORK Connections Only
Wiring and Components by YORK
Optional Equipment
Wiring and/or Components by Others
FIG. 16 – WIRING DIAGRAM – ACROSS-THE-LINE START
54
WIRING DIAGRAM
ACROSS-THE-LINE START
FORM 201.18-NM1 (102)
LD07402
LD03227
YORK INTERNATIONAL