Reznor PDF2SF Unit Installation Manual - Manual (Page 27)

27
AIRFLOW INFORMATION
Table 12. Airflow Settings (CFM) & Rise (° F) for Heating Operation Mode
Table 11. Airflow Settings for Cooling
Table 10. Nominal Airflow Rates & Temperature Rises (° F)
Model Number
Heating Input
(btuh)
Heating Output
(btuh)
CFM Range
Heating Rise
Range (°F)
Cooling Output
(btuh)
Blower
Size
Motor
(HP)
X24K080CA
80,000 64,000 1100 - 1350
35-65 24,000 10 X 10 1/2
52,000 41,600 750 - 1050
X36K100CA
100,000 80,000 1200 - 1600
40-70 35,000 10 X 10 1/2
65,000 52,000 900 - 1200
X48K120CA
120,000 96,000 1350 - 2000
40-70 46,000 11 X 10 1
78,000 62,400 950 - 1300
X60K120CA
120,000 96,000 1350 - 2000
40-70 55,500 11 X 10 1
78,000 62,400 950 - 1300
NOTE: CFM and Rise are independent of ESP in a variable speed blower.
2 TON UNITS 3 TON UNITS 4 - 5 TON UNITS
BLOWER
SELECTOR
SETTING
RECOMMENDED
A/C AIRFLOW
RATE (CFM)
BLOWER
SELECTOR
SETTING
RECOMMENDED
A/C AIRFLOW
RATE (CFM)
BLOWER
SELECTOR
SETTING
RECOMMENDED
A/C AIRFLOW
RATE (CFM)
COOL ADJUST COOL ADJUST COOL ADJUST
TAP “A”
-10%
2
T
O
N
685
TAP “A”
-10% 840
TAP “A”
-10%
4
T
O
N
1485
Normal 760 Normal
3
T
O
N
930
Normal
5
T
O
N
1650
+10% 835 +10% 1025 +10% 1815
TAP “b”
-10% 840
TAP “b”
-10% 975
TAP “b”
-10% 1620
Normal 930 Normal 1080 Normal 1800
+10% 1025 +10% 1190 +10% 1980
TAP “C”
-10% 975
TAP “C”
-10% 1110
TAP “C”
-10% 1665
Normal 1080 Normal 1230 Normal 1850
+10% 1190 +10% 1350 +10% 2035
TAP “D”
-10% 1110
TAP “D”
-10% 1290
TAP “D”
-10% 1800
Normal 1230 Normal 1430 Normal 2000
+10% 1350 +10% 1575 +10% 2200
Blower HEAT
Selector Setting
2 TON 3 TON 4 & 5 TON
Low Input High Input Low Input High Input Low Input High Input
52,000 80,000 65,000 100,000 78,000 120,000
CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise
TAP “A” 750 51 1100 55 900 53 1200 63 950 61 1350 67
TAP “B” 850 45 1150 53 1000 48 1300 58 1050 55 1500 61
TAP “C” 950 41 1250 49 1100 44 1400 54 1150 50 1700 54
TAP “D” 1050 37 1350 45 1200 40 1600 47 1300 44 2000 46
NOTES:
1. Recommended temperature rises are highlighted in bold . Use of any other setting may result in nuisance trips.
2. Temperature rises in the table are approximate. Actual temperature rises may vary.
3. blower “ADJUST” tap non-functional in Heating mode.