Product data

11
CHILLED WATER UNIT — TWO-PIPE CHANGEOVER HEATING CAPACITIES
LEGEND
NOTES:
1. All duties based on high fan speed except where stated otherwise.
2. Pressure drops are coil only, excluding valves.
SOUND DATA
LEGEND
NOTE: Overall SPL measured at a distance of 5 ft below the fascia in
free field, dry coil conditions, referenced to 2 x 10
5
Pa.
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 28,3893.0 11.0
60 25,903 2.7 9.4
70 23,605 2.5 8.0
12
50 33,471 3.5 4.6
60 30,715 3.2 4.0
70 27,995 2.9 3.4
18
50 60,388 6.3 5.7
60 55,127 5.8 4.8
70 49,706 5.2 4.0
20
50 65,350 6.8 6.5
60 59,8876.3 5.6
70 54,118 5.7 4.7
33
50 99,476 10.4 10.1
60 91,494 9.6 8.8
70 82,986 8.7 7.4
36
50 114,225 11.9 13.0
60 105,132 11.0 11.2
70 95,896 10.0 9.5
DB — Dry Bulb
RH — Relative Humidity
42WKN
UNIT SIZE
FAN SPEED
SPL
dBA
SOUND PRESSURE FREQUENCY SPECTRUM, dB
125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz
08
High 29 37 37 33 29 21 14 10
Med2634343024151210
Low2231292517 8 10 8
12
High 35 42 41 38 35 28 21 12
Med 32 38 39 36 32 24 16 10
Low2937373329211410
18
High 43 41 45 38 40 33 25 17
Med3939413536271916
Low 38 38 40 34 34 25 18 16
20
High 46 43 47 40 43 37 29 19
Med 43 41 45 38 40 33 25 17
Low3939413536271916
33
High 48 51 49 46 42 34 22 19
Med4450464338 28 18 17
Low4249444136251716
36
High 52 54 54 50 46 41 27 24
Med 48 51 49 46 42 34 22 19
Low4550474439311918
SPL — Sound Pressure Level