38
ASTON CONSOLE SERIES INSTALLATION MANUAL
Entering
Water Temp
°F
Water Flow
GPM/Ton
Cooling
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
09-18
Superheat
09-18
Subcooling
Water Temp
Rise °F
Air Temp
Drop °F DB
50
1.5
127 - 144
205 - 225
5 - 10
10 - 14
18 - 22
18 - 22
3.0
120 - 140
185 - 205
7 - 15
5 - 10
8 - 10
18 - 22
70
1.5
139 - 154
280 - 300
8 - 11
8 -12
18 - 22
18 - 22
3.0
137 - 152
250 - 270
9 - 12
7 - 11
8 - 10
18 - 22
90
1.5
143 - 158
360 - 380
8 - 11
9 - 13
18 - 22
16 - 20
3.0
141 - 156
330 - 350
9 - 12
8 - 12
8 - 10
16 - 20
Entering
Water Temp
°F
Water Flow
GPM/Ton
Heating
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
09-18
Superheat
09-18
Subcooling
Water Temp
Drop °F
Air Temp
Rise °F DB
30
1.5
73 - 79
279 - 304
7 - 13
2 - 6
7 -10
18 - 24
3.0
79 - 85
285 - 310
8 - 14
2 - 6
3 - 6
20 - 26
50
1.5
103 - 109
308 - 333
8 - 12
4 - 8
8 - 11
20 - 26
3.0
110 - 116
315 - 340
9 - 13
4 - 8
4 - 7
22 - 28
70
1.5
140 - 146
330 - 365
10 - 14
7 - 11
11 - 14
26 - 32
3.0
146 - 153
340 - 375
10 - 14
7 - 11
7 - 10
28 - 34
Note: Cooling performance based on entering air temperatures of 80º F DB, 67º F WB.
Heating performance based on entering air temperature of 70º F DB.
Operating Limits
(°F)
(°C)
(°F)
(°C)
Air Limits
Min. Ambient Air
45
7.2
45
7.2
Rated Ambient Air
80
26.7
70
21.1
Max. Ambient Air
100
37.8
85
29.4
Min. Entering Air
50
10.0
40
4.4
Rated Entering Air db/wb
80.6/66.2
27/19
68
20.0
Max. Entering Air db/wb
110/83
43/28.3
80
26.7
Water Limits
Min. Entering Water
30
-1.1
20
-6.7
Normal Entering Water
50-110
10-43.3
30-70
-1.1
Max. Entering Water
120
48.9
90
32.2
Notes:
Cooling
Heating
Minimum/maximum limits are only for start-up conditions, and are meant for bringing the space up to occupancy
temperature. Units are not designed to operate at the minimum/maximum conditions on a regular basis. The
operating limits are dependant upon three primary factors: 1) water temperature, 2) return air temperature, and 3)
ambient temperature. When any of the factors are at the minimum or maximum levels, the other two factors must be
at the normal level for proper and reliable unit operation.
Operating Limits
Operating Parameters
Single Speed Models