FORM 150.75-NM2
21
YORK INTERNATIONAL
MASTER MODULE WIRING DIAGRAM
FIG. 15
MASTER MODULE ELEMENTARY DIAGRAM (Contd)
CAUTION: No Controls (relays, etc.)
should be mounted in the
Smart Panel enclosure or
connected to power sup-
plies in the control panel.
Additionally, control wiring
not connected to the Smart
Panel should not be run
through the cabinet. This
could result in nuisance
faults.
CAUTION: Any inductive devices (re-
lays) wired in series with
the flow switch for start/
stop, into the Alarm cir-
cuitry, or pilot relays for
pump starters wired
through motor contactor
auxiliary contacts must be
suppressed with YORK
P/N 031-00808-000 sup-
pressor across the relay/
contact coil which acti-
vates the contacts.
Any contacts connected to
flow switch inputs or BAS
inputs on terminals 13-19
of TB3, or any other termi-
nals, must be suppressed
with a YORK P/N 031-
00808 suppressor across
the relay/contactor coil
which activates the con-
tacts.
CAUTION: Control wiring connected
to the control panel should
never be run in the same
conduit with power wiring.
CONTROL
MIN
MAX
NON-FUSED
UNIT
POWER
CIRCUIT
DUAL
DISC. SW.
VOLTAGE
SUPPLY AMPACITY
ELEMENT
SIZE
FUSE SIZE
All
Models w/o 115-1-50/60
20A
20A, 250A
30A, 240A
Transformers
CONTROL POWER SUPPLY
LD01928
