Product data

10
CHILLED WATER UNIT COOLING CAPACITIES
LEGEND NOTES:
1. All duties based on high fan speed except where stated otherwise.
2. Cooling capacities are gross. Do not include fan motor gains.
3. Pressure drops are coil only (excludes valves).
4. Hot water duties on chilled water units fitted with additional,
optional hot water coil. See data on next page.
HOT WATER COIL HEATING CAPACITIES
LEGEND
NOTES:
1. All duties based on high fan speed except where stated otherwise.
2. Pressure drops are coil only, excluding valves.
3. Hot water duties based on units fitted with additional, optional hot water coil.
4. Hot water coil not available on size 42WKN12.
42WKN
UNIT SIZE
ENTERING
DB AIR
TEMPERATURE (F)
at 50% RH
CHILLED WATER ENTERING/LEAVING TEMPERATURE
40/50 F 45/55 F
TC (Btuh) SC (Btuh)
Flow
(gpm)
Pressure
Drop (psi)
TC (Btuh) SC (Btuh)
Flow
(gpm)
Pressure
Drop (psi)
08
72 5,236 5,156 1.1 2.4 3,999 3,999 0.8 1.5
75 6,528 5,989 1.3 3.5 4,729 4,729 1.0 2.0
80 10,037 7,529 2.0 7.6 7,026 6,107 1.4 4.0
12
72 8,723 7,261 1.8 1.9 5,623 5,623 1.1 0.9
75 10,831 8,173 2.2 2.7 7,502 6,604 1.5 1.4
80 14,435 9,644 2.9 4.6 11,236 8,200 2.3 2.9
18
72 13,728 12,126 2.8 1.9 9,295 9,295 1.9 0.9
75 17,478 13,840 3.5 2.8 11,447 10,853 2.3 1.4
80 24,588 16,659 4.9 5.1 18,432 13,900 3.7 3.1
20
72 14,810 13,098 3.0 2.1 10,103 10,103 2.0 1.1
75 18,956 14,985 3.8 3.3 12,341 11,716 2.5 1.5
80 26,569 18,022 5.3 5.9 19,971 15,041 4.0 3.6
33
72 23,570 20,321 4.7 3.5 15,695 15,695 3.2 1.7
75 29,100 22,928 5.8
5.1 19,912 18,365 4.0 2.7
80 41,598 28,029 8.3 9.6 30,595 23,129 6.1 5.6
36
72 27,054 23,385 5.4 4.5 18,066 18,066 3.6 2.2
75 33,895 26,690 6.8 6.7 22,721 21,074 4.6 3.3
80 47,991 32,334 9.6 12.5 35,934 26,916 7.2 7.5
DB — Dry Bulb
RH — Relative Humidity
SC—Sensible Cooling Capacity
TC — Total Cooling Capacity
42WKN UNIT SIZE
ENTERING DB AIR
TEMPERATURE (F) at 50% RH
HOT WATER INLET 180F/160F
Heating Capacity (Btuh) Flow Rate (gpm) Pressure Drop (psi)
08
50 16,819 1.8 3.9
60 15,292 1.6 3.3
70 13,799 1.4 2.7
12
50 N/A N/A N/A
60 N/A N/A N/A
70 N/A N/A N/A
18
50 35,763 3.7 3.4
60 32,4803.4 2.9
70 29,258 3.1 2.4
20
50 37,938 4.0 3.7
60 34,401 3.6 3.2
70 30,946 3.2 2.7
33
50 55,6835.8 4.0
60 51,120 5.3 3.5
70 46,555 4.9 3.0
36
50 62,005 6.5 4.8
60 56,762 5.9 4.1
70 51,600 5.4 3.5
DB — Dry Bulb
N/A — Not Applicable
RH — Relative Humidity
Performance data