Ycas 140 - 246 Wiring Diagrams - York Millennium YCAS 316 Installation Operation & Maintenance

LEGEND
T S
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
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 indicate 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 wiring specifications. Also refer to cau-
tions on the following page.
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 malfunction. Con-
tacts are rated at 115V, 100VA, resistive load only, and must be
suppressed at load by user.
7. See Installation, Operation and Maintenance Manual when op-
tional equipment is used.
8. Control panel to be securely connected to earth ground.
9. Us 2KVA transformer in optional transformer kit unless there are
optional oil separator sump heaters which necessitates using a
3KVA transformer.
FIG. 8 – ELEMENTARY DIAGRAM – ACROSS-THE-LINE START
52
YCAS 140 - 246 WIRING DIAGRAM
ACROSS-THE-LINE START
LD01461(D)
LD01461(D)
YORK INTERNATIONAL