17
50KQA,KQD009 (
3
/
4
TON) — RATED AIRFLOW 280 CFM
LEGEND
*ARI 320 points (bold printing) are shown for comparison purposes
only. These are not certified data points.
NOTES:
1.
Shaded boxed areas represent KQD units only.
2. MOPD = Maximum Operating Pressure Differential (water pres-
sure differential at unit cannot exceed MOPD or water valve cannot
close).
3. Interpolation is permissible, extrapolation is not.
4. All entering air conditions are 80 F db and 67 F wb in cooling and
70
F db in heating.
5. All performance data is based upon the lower voltage of dual volt-
age rated units. See Performance Correction Tables on page 21
for operating conditions other than those listed above.
6. ARI/ASHRAE/ISO 13256-1 (WLHP application) certified condi-
tions are 86
F EWT, 80.6
F db and 66.2
F wb in cooling and 68
F
EWT, 68
F db and 59
F wb in heating.
EWT F
GPM
COOLING — EAT 80
F DB/67
F WB
HEATING — EAT 70
F DB
PRESSURE DROP (ft wg)
TC
TSC
Sensible/
Total Ratio
kW
THR
TC
kW
THA
Without
Motorized
Valve
With
Motorized
Cv = 3.5
MOPD = 20 psi
With
Motorized
Cv = 2.5
MOPD = 50 psi
40
1.7
10.8
7.8
0.72
0.47
12.4
Operation Not Recommended
2.3
2.8
3.4
2.3
10.9
7.8
0.72
0.45
12.4
8.1
0.66
5.9
4.3
5.3
6.3
3.0
10.9
7.8
0.72
0.44
12.4
8.2
0.67
6.0
7.2
8.9
10.5
50
1.7
10.4
7.6
0.73
0.51
12.2
9.0
0.70
6.7
2.3
2.8
3.4
2.3
10.5
7.6
0.73
0.49
12.2
9.3
0.70
6.9
4.3
5.3
6.3
3.0
10.5
7.7
0.73
0.48
12.2
9.4
0.71
7.0
7.2
8.9
10.5
60
1.7
10.0
7.4
0.74
0.56
11.9
10.2
0.73
7.7
2.3
2.8
3.4
2.3
10.1
7.5
0.74
0.55
12.0
10.4
0.73
7.9
4.3
5.3
6.3
3.0
10.2
7.5
0.74
0.54
12.0
10.6
0.74
8.1
7.2
8.9
10.5
70*
1.7
9.7
7.3
0.75
0.63
11.8
11.3
0.77
8.7
2.3
2.8
3.4
2.3
9.8
7.3
0.75
0.61
11.9
11.7
0.78
9.0
4.3
5.3
6.3
3.0
9.8
7.4
0.75
0.60
11.9
11.9
0.79
9.2
7.2
8.9
10.5
80
1.7
9.3
7.2
0.77
0.69
11.7
12.6
0.82
9.8
2.3
2.8
3.4
2.3
9.4
7.2
0.76
0.67
11.7
12.9
0.82
10.1
4.3
5.3
6.3
3.0
9.5
7.2
0.76
0.66
11.7
13.2
0.84
10.3
7.2
8.9
10.5
85*
2.3
9.2
7.1
0.77
0.72
11.7
Operation Not Recommended
4.3
5.3
6.3
90
1.7
9.0
7.0
0.78
0.77
11.6
2.3
2.8
3.4
2.3
9.0
7.0
0.78
0.74
11.6
4.3
5.3
6.3
3.0
9.1
7.0
0.77
0.73
11.6
7.2
8.9
10.5
100
1.7
8.6
6.8
0.79
0.84
11.5
2.3
2.8
3.4
2.3
8.7
6.9
0.79
0.83
11.5
4.3
5.3
6.3
3.0
8.7
6.9
0.79
0.81
11.5
7.2
8.9
10.5
110
1.7
Operation Not Recommended
2.3
2.8
3.4
2.3
8.3
6.7
0.81
0.91
11.4
4.3
5.3
6.3
3.0
8.3
6.7
0.80
0.89
11.4
7.2
8.9
10.5
DB
—
Dry Bulb
EWT
—
Entering Water Temperature (F)
GPM
—
Gallons per Minute
MBtuh —
Btuh in Thousands
TC
—
Total Capacity
THA
—
Total Heat of Absorption (MBtuh)
THR
—
Total Heat of Rejection (MBtuh)
TSC
—
Total Sensible Cooling (MBtuh)
WB
—
Wet Bulb
WLHP —
Water Loop Heat Pump
