Carrier 09DK054-094 - Manual (Page 34)

Table 7 — Minimum Outdoor-Air Operating
Temperature
English
UNIT
09DK
HEAD
PRESSURE
CONTROL
TD
°F
COMPRESSOR CAPACITY (%)*
100 75 50 25
Minimum Outdoor-Air
Temperature ° F
All
Sizes
FCPSs and
Motormaster®
III
30
25
20
-20 -20 -20 -20
054,
064
FCPSst
2 Fans
30
25
20 29
38
47 34
40
47 38
42
46 51
53
56
FCPSst 30 12 19 22 43
074-094
2 Fans
ATfis
25 22 25 29 47
2 Fans 20 31 31 36 51
SI
UNIT
09DK
HEAD
PRESSURE
CONTROL
TD
°C
COMPRESSOR CAPACITY (%)*
100 1 75 1 50 1 25
Minimum Outdoor-Air
Temperature ° C
All
Sizes
FCPSs and
Motormaster
III
16.7
13.9
11.1
-29 -29 -29 -29
054,
064
FCPSst
2 Fans
16.7
13.9
11.1 -2
3
8
1
4
8
3
6
8 11
12
13
074-094
FCPSst
2 Fans
ATSs
2 Fans
167
13 9
11 1 -11
-6
-1
-7
-4
-1
-6
-2
2
6
8
11
LEGEND
ATS — Air Temperature Switch
FCPS — Fan Cyciing Pressure Switch
TD — Temperature Difference = Saturated Condensing
Temperature Entering - Entering-Air Temperature
‘interpolation permitted; compressor capacity per condenser circuit.
tAdditional FCPSs needed for 67/33, 33/33/33, and 33/33/17/17%
capacity split applications
NOTES:
1. Fans on the 09DK054-094 units are controlled by ATSs and FCPSs.
See Table 8 for more details.
2. Minimum outdoor temperatures are determined for indoor and out­
door unit combinations of the same capacity.
Table 8 — Fan Cycling Controls Temperature/
Pressure Settings
English
UNIT
09DK
FCPS
OPENS AT 160
±10 psig
CLOSES AT 260
±15 psig
ATS
OPENS AT 70 ± 3° F
CLOSES AT 80 ± 3° F
054,064 FM 3,4‘ ...
074-094 FM 3,4* FM 5,6t
SI
UNIT
09DK
FCPS
OPENS AT 1103
± 69 kPa
CLOSES AT 1793
± 103 kPa
ATS
OPENS AT 21.1 ± 1.7“C
CLOSES AT 26.7 ± 1.7“ C
054,064 FM 3,4‘ ...
074-094 FM 3,4* FM 5,6t
LEGEND
ATS — Air Temperature Switch
FCPS — Fan Cycle Pressure Switch
FM — Fan Motor
‘Fan motors 3 and 4 are each controlled by a FCPS for 100 and
50/50% capacity split applications For other capacity split options,
the accessory fan control kit must be used and additional FCPSs
are required. See accessory fan control kit installation instructions
for more information.
tFan motors 5 and 6 are each controlled by an ATS.
34