074 units, It ij, Itii – Carrier 09DK054-094 User Manual
Page 14: T il it
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FCPS2■
FCPS2■
O-............
074 Units
...........O
Ti....
FCPS1
i 1
100
%
"f—1
ii
FCPS1
it ij
50% / 50%
FCPS2■
O--------- n
1_______
9
fel-
-11
V
1 FCPS4
32%
itii
68%
—
0
—
FCPS1
FCPS2■
O-------- 1
’11
FCPS4
-O
FCPS3
o-J-w----
1-*
--O
t il It
32%
36%
32%
--0
FCPS2
FCPS4
FCPS3
t 1
1-0
__
s.
__
FCPS1
O - -
!l
NOTES:
1. FCPS1 = Fan cycle pressure switch 1 cycles fan 3 in
response to condensing pressure.
2. FCPS2 = Fan cycle pressure switch 2 cycles fan 4 in
response to condensing pressure.
3 FCPS3 = Fan cycle pressure switch 3 cycles fan 3 in
response to condensing pressure.
4 FCPS4 = Fan cycle pressure switch 4 cycles fan 4 in
response to condensing pressure.
5 In the above applications where a fan is being shared by two
different refrigeration circuits, the FCPSs (FCPS1 and 3 or
FCPS2 and 4) are in paraliel so that the fan switches on in
response to the condensing pressure in either circuit.
FCPS1
32%
18%
18%
32%
FCPS — Fan Cycie Pressure Switch
Fig. 9 — Typical Field Piping Arrangements (cent)
14