
Performance
Data
UNT-PRC001-EN
68
Basic Series
Sizes 04-08
ARI cooling performance is based on 80/67 F (27/19 C) entering air temperature, 45 F (7 C) entering chilled water temperature with a
10 F (5.5 C)
∆
T.
Heating performance is based on 70 F (21 C) entering air temperature, 180 F (82 C) entering hot water temperature with a 30 F (17
C)
∆
T.
All performance measured on high speed tap, free discharge motor at zero ESP, high static motor at 0.2 ESP, with throwaway filter,
and is valid for all voltages except 208.
Table B-PD-3. Free Discharge Motor, Four-Pipe
Cooling
Heating
CFM
TMBH
SMBH
GPM
WPD
TMBH
GPM
WPD
115V
230V
277V
FC
Coil
(L/s)
(TkW)
(SkW)
(L/s)
(kPa)
(TkW)
Q/ITD
(L/s)
(kPa)
Watt
Watt
Watt
4
2C1H
374 (177)
8.4 (2.5)
6.6 (2.0)
1.74 (0.11)
3.9 (11.7)
15.0 (4.4)
.14
1.00 (0.06)
2.8 (8.4)
100
107
106
2C2H
350 (165)
8.0 (2.4)
6.4 (1.9)
1.67 (0.11)
3.7 (11.0)
23.8 (7.0)
.22
1.59 (0.10)
2.8 (8.3)
100
107
106
3C1H
350 (165)
11.1 (3.3)
7.8 (2.3)
2.28 (0.14)
8.9 (26.5)
14.4 (4.2)
.13
0.96 (0.06)
2.6 (7.8)
100
107
106
6
2C1H
608 (287)
14.7 (4.3)
11.1 (3.2)
3.01 (0.19)
12.8 (38.4)
24.2 (7.1)
.22
1.61 (0.10)
8.4 (25.2)
125
130
124
2C2H
565 (267)
14.1 (4.1)
10.6 (3.1)
2.91 (0.18)
12.0 (36.0)
38.4 (11.3)
.35
2.56 (0.16)
8.0 (23.9)
125
130
124
3C1H
565 (267)
15.9 (4.7)
11.8 (3.5)
3.26 (0.21)
4.6 (13.7)
23.1 (6.8)
.21
1.54 (0.10)
7.8 (23.3)
125
130
124
8
2C1H
731 (345)
15.4 (4.5)
12.5 (3.7)
3.16 (0.20)
3.8 (11.4)
30.2 (8.9)
.27
2.01 (0.13)
15.1 (45.1)
120
123
133
2C2H
688 (325)
14.8 (4.4)
12.0 (3.5)
3.05 (0.19)
3.6 (10.7)
46.2 (13.5)
.42
3.08 (0.19)
3.3 (9.9)
120
123
133
3C1H
688 (325)
20.0 (5.9)
14.2 (4.2)
4.08 (0.26)
7.7 (23.0)
29.1 (8.5)
.26
1.94 (0.12)
14.1 (42.1)
120
123
133
Table B-PD-4. High Static Motor, Four-Pipe
Cooling
Heating
CFM
TMBH
SMBH
GPM
WPD
TMBH
GPM
WPD
115V
230V
277V
FC
Coil
(L/s)
(TkW)
(SkW)
(L/s)
(kPa)
(TkW)
Q/ITD
(L/s)
(kPa)
Watt
Watt
Watt
4
2C1H
484 (228)
9.9 (2.9)
8.1 (2.4)
2.13 (0.13)
5.6 (16.9)
17.5 (5.1)
.16
1.17 (0.07)
3.7 (11.1)
210
210
210
2C2H
453 (214)
9.6 (2.8)
7.8 (2.3)
2.06 (0.13)
5.3 (15.9)
28.4 (8.3)
.26
1.90 (0.12)
3.9 (11.6)
210
210
210
3C1H
453 (214)
13.5 (4.0)
9.7 (2.9)
2.84 (0.18)
13.0 (39.9)
16.9 (4.9)
.15
1.12 (0.07)
3.5 (10.3)
210
210
210
6
2C1H
780 (368)
17.0 (5.0)
13.3 (4.0)
3.62 (0.23)
17.9 (53.4)
27.9 (8.2)
.25
1.86 (0.12)
10.9 (32.6)
320
320
320
2C2H
725 (342)
16.4 (4.8)
12.7 (3.7)
3.50 (0.22)
16.8 (50.1)
45.4 (13.3)
.41
3.03 (0.19)
10.9 (32.6)
320
320
320
3C1H
725 (342)
19.3 (5.7)
14.7 (4.3)
4.08 (0.26)
6.9 (20.7)
26.8 (7.9)
.24
1.79 (0.11)
10.1 (30.3)
320
320
320
8
2C1H
886 (418)
18.1 (5.3)
15.0 (4.4)
3.85 (0.24)
5.5 (16.5)
34.0 (10.0)
.31
2.26 (0.14)
18.6 (55.5)
320
320
320
2C2H
835 (394)
17.6 (5.1)
14.4 (4.2)
3.73 (0.24)
5.2 (15.5)
52.8 (15.5)
.48
3.52 (0.22)
4.3 (12.8)
320
320
320
3C1H
835 (394)
23.8 (7.0)
17.3 (5.1)
4.98 (0.31)
11.1 (33.3)
32.8 (9.6)
.30
2.19 (0.14)
17.5 (52.2)
320
320
320
Note:
1. CFM = Cubic feet per minute
2. TMBH = Total capacity (MBH)
3. GPM =Gallons per minute
4. WPD = Water pressure drop (feet of water)
5. Q/ITD = MBH (kW)/(entering water temperature - entering air temperature) when
∆
T and GPM (L/s) remain constant. To determine heating capacities at a different entering water temperature or
entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
6. Medium and low speed capacities are approximately 80% and 60% respectively of the high speed capacity.
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