15
ECO-Y INSTALLATION MANUAL
Antifreeze Corrections
Catalog performance can be corrected for antifreeze use. Please
use the following table and note the example given.
Antifreeze Correction Example
Antifreeze solution is Propylene Glycol 20% by weight. Determine
the corrected heating and cooling performance at 30°F and 90°F
respectively as well as pressure drop at 30°F for a YS024-PSC.
The corrected cooling capacity at 90°F would be:
24,500 MBtuh x 0.969 = 23,741 MBtuh
The corrected heating capacity at 30°F would be:
19,000 MBtuh x 0.913 = 17,347 MBtuh
The corrected pressure drop at 30°F and 6 GPM would be:
10.5 feet of head x 1.270 = 13.34 feet of head
Antifreeze Type
Antifreeze
% by wt
Cooling
Capacity
Heating
Capacity
Pressure Drop
EWT -
degF [DegC]
90 [32.2]
30 [-1.1]
30 [-1.1]
Water
0
1.000
1.000
1.000
10
0.991
0.973
1.075
20
0.979
0.943
1.163
Ethylene Glycol
30
0.965
0.917
1.225
40
0.955
0.890
1.324
50
0.943
0.865
1.419
10
0.981
0.958
1.130
20
0.969
0.913
1.270
Propylene Glycol
30
0.950
0.854
1.433
40
0.937
0.813
1.614
50
0.922
0.770
1.816
10
0.991
0.927
1.242
20
0.972
0.887
1.343
Ethanol
30
0.947
0.856
1.383
40
0.930
0.815
1.523
50
0.911
0.779
1.639
10
0.986
0.957
1.127
20
0.970
0.924
1.197
Methanol
30
0.951
0.895
1.235
40
0.936
0.863
1.323
50
0.920
0.833
1.399
Warning
: Gray area represents antifreeze concentrations greater than 35% by weight and
should be avoided due to the extreme performance penalty they represent.
Auxiliary Heat Ratings
Model
KW
BTU/HR
Min
ECO-Y Compatibility
208V
230V
Stages
208V
230V
CFM
024 - 036
042
048 - 070
EAM(H)5
3.6
4.8
1
12,300
16,300
450
•
EAM(H)8
5.7
7.6
1
19,400
25,900
550
•
EAM(H)10
7.2
9.6
1
24,600
32,700
650
•
EAL(H)10
7.2
9.6
1
24,600
32,700
1100
•
•
EAL(H)15
10.8
14.4
1
36,900
49,100
1250
•
•
EAL(H)20
14.4
19.2
1
49,200
65,500
1500
•
9/18/09
Model
Supply
Circuit
Heater Amps
Min Circuit Amp
Max Fuse (USA)
Max Fuse (CAN)
Max CKT BRK
208 V
240 V
208 V
240 V
208 V
240 V
208 V
240 V
208 V
240 V
EAM(H)5
Single
17.3
20
26.7
30
30
30
30
30
30
30
EAM(H)8
Single
27.5
31.7
39.3
44.6
40
45
40
45
40
50
EAM(H)10
Single
34.7
40
48.3
55
50
60
50
60
50
60
EAL(H)10
Single
34.7
40
53.3
60
60
60
60
60
60
60
EAL(H)15
Single
52.0
60
75
85
80
90
80
90
70
100
L1/L2
34.7
40
53.3
60
60
60
60
60
60
60
L3/L4
17.3
20
21.7
25
25
25
25
25
20
30
EAL(H)20
Single
69.3
80
96.7
110
100
110
100
110
100
100
L1/L2
34.7
40
53.3
60
60
60
60
60
60
60
L3/L4
34.7
40
43.3
50
45
50
45
50
40
50
9/18/09
All heaters rated single phase 60 cycle and include unit blower load.
All fuses type “D” time delay (or HACR circuit breaker in USA)
Wire length based on one-way measurement with 2% voltage drop
Wire size based on 60°C (*90°C) copper conductor
“H” is used in part numbers for horizontal units