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PKGP-PRC001-EN
25
Performance
Data (12½ - 20 Tons)
*Indicates both downflow and horizontal units.
Table PD-21 —Electric Heater Voltage
Correction Factors (Applicable to Auxiliary
Heat Capacity)
Nominal Distribution Capacity
Voltage Voltage Multiplier
208 0.75
240 230 0.92
240 1.00
440 0.84
480 460 0.94
480 1.00
540 0.81
600 575 0.92
600 1.00
Table PD-19— Heating Capacity Correction Factors
% Variation of Nominal CFM - 20 - 10 0 + 10 + 20
Total Gross Capacity Multiplier .96 .98 1.0 1.01 1.02
Table PD-20 — Auxiliary Electric Heat Capacity
Total
2
Stage 1 Stage 2
Unit KW MBh No. of KW MBh KW MBh
Tons Model No. Input
1
Output
1
Stages Input
1
Output
1
Input
1
Output
1
18.00 61.00 1 18.00 61.00 — —
12½, 15 WC
*150B3, B4, BW 36.00 123.00 2 18.00 61.00 18.00 61.00
WC
*180B3, B4, BW 54.00 184.00 2 36.00 123.00 18.00 61.00
36.00 123.00 2 18.00 61.00 18.00 61.00
20 WC
* 240B3, B4, BW 54.00 184.00 2 36.00 123.00 18.00 61.00
72.00 246.00 2 36.00 123.00 36.00 123.00
Table PD-22— Air Temperature Rise Across Electric Heaters (Degree F)
12½ Ton 15 Ton 20 Ton
5000 CFM 6000 CFM 8000 CFM
Three Phase Three Phase Three Phase
KW Stages WC
*150B WC*180B WC*240B
9.00 1 — — —
17.30 1 — — —
18.00 1 11.4 9.5 —
27.00 2 — — —
36.00 2 23.0 19.0 14.2
54.00 2 34.1 28.4 21.3
72.00 2 — — 28.5
Table PD-23 — Electric Heater Temperature Rise Correction Factors
% Variation From Nominal CFM - 20 - 15 - 10 - 5 0 +5 +10 +15 +20
Temperature Rise Multiplier 1.25 1.17 1.11 1.05 1.00 0.95 0.91 0.87 0.83
Notes:
1. Does not include indoor fan power or heat.
2. Heaters are rated at 240v, 480v. and 600v. For other than rated voltage, CAP =( )2 x rated cap.
Voltage
Rated Voltage