3
General Data
Table 1 – Air Cooled Chiller General Data (60 Hz)
Model
NQA04 NQA05 NQA08 NQA10 NQA13 NQA15 NQA20
NQA25
NQA30
Cooling Capacity (tons)
1
4.4
5.1
7.8
11.0
12.5
14.9
20.9
25.6
30.6
Set Point Range (°F)
20 to 80 20 to 80 20 to 80 20 to 80 20 to 80 20 to 80 20 to 80 20 to 80 20 to 80
Refrigerant
R410A R410A R410A R410A R410A R410A R410A R410A R410A
Condenser Air Flow (cfm)
4,000
4,000
8,000
8,000
8,000
10,450 18,000 20,000 24,000
Sound Pressure @ 1 meter (dBA)
2
73.8
74.0
75.8
76.2
76.2
82.2
84.4
84.4
85.9
Minimum Unloaded Capacity (tons)
1.0
1.2
1.8
2.7
3.1
3.6
4.8
6.0
7.2
Pump Motor Size (hp)
1.5
1.5
1.5
1.5
1.5
3
3
5
5
Pump Flow (gpm)
11
12
19
27
30
36
48
60
72
Net Available Pump Pressure (psi)
3
35
36
35
30
28
48
39
58
55
Unit MCA @ 460/3/60 (amps)
4
15.6
18.1
26.1
30.9
36.5
44.3
55.5
70.0
83.1
Length (inches)
48
48
75
75
75
87
87
105
105
Width (inches)
35
35
35
35
35
41
41
41
41
Height w/standard fans (inches)
61
61
61
61
61
94
94
94
94
Height w/high pressure fans (inches)
n/a
n/a
63
63
63
96
96
96
96
Reservoir Holding Capacity (gal)
11
11
22
22
22
50
50
67
67
Process Connections (inches)
1.5
1.5
1.5
1.5
1.5
2
2
2
2
Shipping Weight (lbs)
720
720
1,195
1,195
1,215
3,200
3,300
3,800
4,150
1
Cooling tons based on 12,000 BTU/Hr/ton with 50°F leaving coolant and 95°F ambient air.
2
Sound power shown is for standard high-efficiency constant-speed AC motor fans. A high-pressure variable-speed EC motor
fan option is available for NQA08 and larger units that changes the sound pressure at 1 meter (dBA) to 75 for NQA08-10, 82
for NQA15, 84 for NQA20, 85 for NQA25, and 82 for NQA30.
3
Net available pressure at outlet of chiller is pump discharge pressure less the internal coolant-circuit pressure loss.
4
MCA is Minimum Circuit Amps (for wire sizing), complies with NEC, Section 430-24.
Table 2 – Water Cooled Chiller General Data (60 Hz)
Model
NQW05 NQW08 NQW10 NQW15 NQW20
NQW25
NQW30
NQW35
NQW40
Cooling Capacity (tons)
1
5.5
8.1
12.0
16.5
22.6
28.1
33.3
38.9
43.4
Set Point Range (°F)
20 to 80 20 to 80 20 to 80 20 to 80 20 to 80 20 to 80 20 to 80 20 to 80 20 to 80
Refrigerant
R410A R410A R410A R410A R410A R410A R410A R410A R410A
Condenser Water Flow (gpm)
17
24
36
48
65
82
96
111
124
Sound Pressure @ 1 meter (dBA)
69.8
70.3
71.3
73.3
73.7
73.7
74.7
76.6
78.1
Minimum Unloaded Capacity (tons)
1.3
1.9
2.9
3.9
5.2
6.6
7.8
8.9
9.9
Pump Motor Size (hp)
1.5
1.5
1.5
3
3
5
5
5
5
Pump Flow (gpm)
13
20
29
39
54
67
79
92
102
Net Available Pump Pressure (psi)
2
35
34
28
45
32
54
51
48
44
Unit MCA @ 460/3/60 (amps)
3
16.4
22.6
27.4
39.7
46.3
60.8
69.3
73.7
77.2
Length (inches)
48
75
75
75
87
87
105
105
105
Width (inches)
35
35
35
35
41
41
41
41
41
Height (inches)
54
54
54
54
47
47
47
47
47
Reservoir Holding Capacity (gal)
11
22
22
22
50
50
67
67
67
Process Connections (inches)
1.5
1.5
1.5
1.5
2
2
2
2.5
2.5
Condenser Connections (inches)
1.5
1.5
1.5
1.5
2.5
2.5
2.5
2.5
3
Shipping Weight (lbs)
720
1,195
1,195
1,315
1,900
2,100
2,250
3,400
3,900
1
Cooling tons based on 12,000 BTU/Hr/ton with 50°F leaving coolant and 85°F condenser water.
2
Net available pressure at outlet of chiller is pump discharge pressure less the internal coolant-circuit pressure loss.
3
MCA is Minimum Circuit Amps (for wire sizing), complies with NEC, Section 430-24.
