Hussmann Super Plus - Alco

Alco Cartridge-style Low Pressure Control
Cut Out Pressures
Apply data from compressors 1 and 2 for a
2-compressor rack; data from compressors 1
through 3 for a 3-compressor rack; and so on.
N o t e : These Fanal/Westinghouse Low Pressure
Controls have a fixed 10 psig differential.
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 • Printed in USA
Revised August 1, 1996 P/N 340272A
8 - 3
R404A/R507
Design Compressor Capacity
Suction Largest to Smallest
Temp 1 2 3 4 5 6
˚F psig
-33 5 6 7 8 9 10
-30 6 7 8 9 10 11
-28 8 9 10 11 12 13
-25 10 11 12 13 14 15
-23 11 12 13 14 15 16
-21 12 13 14 15 16 17
-20 13 14 15 16 17 18
-16 15 16 17 18 19 20
-15 16 17 18 19 20 21
-10 20 21 22 23 24 25
7 35 36 37 38 39 40
10 38 39 40 41 42 43
12 40 41 42 43 44 45
14 43 44 45 46 47 48
15 44 45 46 47 48 49
16 45 46 47 48 49 50
20 50 51 52 53 54 55
23 53 54 55 56 57 58
25 56 57 58 59 60 61
R22
Design Compressor Capacity
Suction Largest to Smallest
Temp 1 2 3 4 5 6
˚F psig
-33 5 6 7 8 9 10
-30 5 6 7 8 9 10
-28 5 6 7 8 9 10
-25 5 6 7 8 9 10
-23 5 6 7 8 9 10
-21 6 7 8 9 10 11
-20 7 8 9 10 11 12
-16 9 10 11 12 13 14
-15 10 11 12 13 14 15
-10 12 13 14 15 16 17
7 25 26 27 28 29 30
10 28 29 30 31 32 33
12 30 31 32 33 34 35
14 32 33 34 35 36 37
15 33 34 35 36 37 38
16 34 35 36 37 38 39
20 38 39 40 41 42 43
23 40 41 42 43 44 45
25 42 43 44 45 46 47
30 50 51 52 53 54 55
35 56 57 58 59 60 61
40 64 65 66 67 68 69
45 71 72 73 74 75 76