I 1 ! i – Carrier 09DK054-094 User Manual
Page 13
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054,064 Units
#
FCPS2
100%
FCPS2■
—
o ----------------------T---I —
f
--------------------------------------------------
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I
I
I
!
1
1
1
<
1
1
1
I
I
I
I
'
1
1
1
1
„I — .
ii
---o--«--o
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50% / 50%
FCPS1
FCPS1
I
FCPS2
34%
FCPS1
66%
FCPS2
r---0
FCPS2
FCPS4
FCPS3
О
О ! |
О
'4
4
34%
FCPS — Fan Cycle Pressure Switch
16%
16%
34%
Fan cycle pressure switch 1 cycles fan 3 in
response to condensing pressure.
FCPS2 = Fan cycle pressure switch 2 cycles fan 4 In
response to condensing pressure.
FCPS3 = Fan cycle pressure switch 3 cycies fan 3 in
response to condensing pressure.
FCPS4 = Fan cycle pressure switch 4 cycles fan 4 in
response to condensing pressure
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 parallel so that the fan switches on in
response to the condensing pressure in either circuit
FCPS1
Fig. 9 — Typical Field Piping Arrangements
13