Operating instructions

CAUTION
Do not use an automotive grade antifreeze. Industrial grade glycols must be used.
Automotive antifreeze contains inhibitors which will cause plating on the copper tubes
within the chiller evaporator. The type and handling of glycol used must be consistent with
local codes.
Table 8, Ethylene Glycol Factors for Models AGZ 026BM to 070BM
Freeze Point
Capacity Power Flow PD
% E.G.
o o
F C
26 -3.3 0.998 0.998 1.036 1.097
10
18 -7.8 0.993 0.997 1.060 1.226
20
7 -13.9 0.987 0.995 1.092 1.369
30
-7 -21.7 0.980 0.992 1.132 1.557
40
-28 -33.3 0.973 0.991 1.182 1.791
50
Table 9, Propylene Glycol Factors for Models AGZ 026BM to 070BM
Freeze Point
% P.G. Capacity Power Flow PD
o o
F C
26 -3.3 0.995 0.997 1.016 1.100
10
19 -7.2 0.987 0.995 1.032 1.211
20
9 -12.8 0.978 0.992 1.057 1.380
30
-5 -20.6 0.964 0.987 1.092 1.703
40
-27 -32.8 0.952 0.983 1.140 2.251
50
Table 10, Ethylene Glycol Factors for Models AGZ 075BM to 130BM
Freeze Point
% E.G. Capacity Power Flow PD
o o
F C
26 -3.3 0.994 0.998 1.038 1.101
10
18 -7.8 0.982 0.995 1.063 1.224
20
7 -13.9 0.970 0.992 1.095 1.358
30
-7 -21.7 0.955 0.987 1.134 1.536
40
-28 -33.3 0.939 0.983 1.184 1.755
50
Table 11, Propylene Glycol Factors for Models AGZ 075BM to 130BM
Freeze Point
% P.G.
Capacity Power Flow PD
o o
F C
26 -3.3 0.988 0.996 1.019 1.097
10
19 -7.2 0.972 0.992 1.035 1.201
20
9 -12.8 0.951 0.987 1.059 1.351
30
-5 -20.6 0.926 0.979 1.095 1.598
40
-27 -32.8 0.906 0.974 1.142 2.039
50
Altitude Correction Factors
Performance tables are based at sea level. Elevations other than sea level affect the performance of
the unit. The decreased air density will reduce condenser capacity, consequently reducing the unit's
performance. For performance at elevations other than sea level refer to
Table 12 or Table 13.
18 ACZ / AGZ-BM IMM ACZ/AGZ-4