Тшййозтйт i i, Fm^ (fm3,“i, 2 wires(lф)oi6 – Carrier 09DC User Manual
Page 5: Schematic wiring —head pressure control
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SCHEMATIC WIRING —HEAD PRESSURE CONTROL
208/230/ i
TO fUSED DISCONNECT
ТШЙЙОЗТЙТ
i i
208/230 V
TO FUSED DISCONNECT
COMMON FOR
ALL WIRING
JiNTERLOCKED
[FC
[
with
СОМРЙ
■9AB WITH MOTORMASTER
,^5-9AB8,12
fan
cycling
ONE FAN / MOTORMASTER
iSl+m - 09DC0I6 FAN CYCLING TWO FANS/MOTORMASTER
CONTROL
TERMINAL
BLOCK
(FAN CYCLING CONTROL BOX)
QUICK-CONNECT
PLUG -Л
INTERLOCKED
WITH COMPR
FM|)
2-STAGE
THERMOSTAT
BULB
LOCATED IN
AIRSTREAM
OF FM|
FM,
3-PHASE POWER
TO FUSED DISCONNECT
POWER
TERMINAL
BLOCK
(FAN
CYCLING
CONTROL
BOX)
\
FC| [
'I'
"
;
1
____ hi
FC2
a
;
1 i
___ u
FC3
FM|
(FM^
(FM3,“i±:
QUICK-CONNECT
_J
PLUG
_FLEXIBLE
CONDUIT
(PART OF
FAN CYCLING
CONTROL BOX
PACKAGE)
LEGEND
— Fan Contactor
— Fan Motor
Ad(d this wiring
for 054,064,084
l-CIRCUIT
FAN CYCLING TWO FANS (EACH MODULE) 09DC0I6, 024.028,034,044
TYPICAL PIPING AND WIRING CONNECTIONS (09DC Units shown)
2 - C I R C U I T
FUSED DISCONNECT SWITCHES
FROM POWER SOURCE
3 WIRES (Зф) OIG, _
024,028,034,044
2 WIRES(lф)OI6
ACCESSORY FAN
CYCLING CONTROL
(INCLUDES CONTACTORS;
THREE-PHASE)
1
HOT GAS
NOTES:
1.
Single-phase
motors
(9AB,
09DC016)
require
one
field-supplied
contactor
to
start
all
fans.
Three-phase
motors
(09DC016,
024,
028,
034
and
044)
require
one
field-supplied
contactor
for
each
fan unless supplied with accessory fan cycling control.
2. All pip ing between two mocdule units is fielid supplied.
3.
Wiring
and
piping
shown
are
general
points-of-connection
guides
only and do not include detai is required for specific instaI lotions,
4. All wiring must comply with appl ¡cable notional and local codes.
JUNCTION BOX
LIQUID TO EVAPORATOR
WIRE AS IN EITHER
OF ABOVE DIAGRAMS
"3
LIQUID
3 - C l R C U I T
ACCESSORY DAMPER
SECTION 024, 028, 034
AND 044 (USE ONLY WITH
FAN CYCLING CONTROL)
All
piping
must
follow
standard
refrigerant
piping
practices.
Piping
to
two-module
units
(09DC054,
064
and
084)
should
follow
standard
proctice
for
multiple
condensers.
See
Carrier
System Design Manual for details.
For
pressure
relief
requirements,
see
latest
revision
of
Safety
Code for Mechanical Refrigeration - ASA-B9 1.