| 42WKN Unit Size |
08 |
12 |
18 |
20 |
33 |
36 |
| Nominal Tons |
3/4 |
1 |
1-1/2 |
1-3/4 |
2-1/2 |
3 |
| Cooling Capacity (Btuh) |
6601 |
11091 |
17592 |
19087 |
29722 |
35258 |
|
Dimensions/Weights
|
Height - Chassis/Fascia (in.)
(not additive) |
11-3/4 / 1-1/4 |
11-3/4 / 1-1/4 |
11 / 1-3/4 |
11 / 1-3/4 |
13 / 1-3/4 |
13 / 1-3/4 |
| Width - Chassis/Fascia (in.) |
22-1/2 / 25 |
22-1/2 / 25 |
32-3/8 / 37 |
32-3/8 / 37 |
45-1/2 / 49-1/4 |
45-1/2 / 49-1/4 |
| Depth - Chassis/Fascia (in.) |
22-1/2 / 25 |
22-1/2 / 25 |
32-3/8 / 37 |
32-3/8 / 37 |
32-3/8 / 37 |
32-3/8 / 37 |
| Weight - Chassis/Fascia (lb.) |
40 / 5 |
40 / 5 |
64 / 18 |
64 / 18 |
97 / 21 |
97 / 21 |
|
Chilled Water Coil
|
| Type |
Finned Tube |
| Quantity |
1 |
1 |
1 |
1 |
1 |
1 |
| Face Area (sq ft) |
1.8 |
1.8 |
2.8 |
2.8 |
5.2 |
5.2 |
|
Nominal Airflow (cfm)
|
| High |
350 |
350 |
630 |
700 |
970 |
1160 |
| Medium |
300 |
300 |
530 |
630 |
890 |
970 |
| Low |
260 |
260 |
500 |
530 |
785 |
890 |
| Discharge |
4-way |
4-way |
4-way |
4-way |
4-way |
4-way |
| Unit Water Volume (gal) |
.29 |
.29 |
.45 |
.45 |
.79 |
.79 |
|
Fan
|
| Type |
Centrifugal |
| Quantity |
1 |
1 |
1 |
1 |
2 |
2 |
| Diameter (in.) |
12 |
12 |
5 |
15 |
14 |
14 |
| Horsepower per fan (Hp) |
1/8 |
1/8 |
1/8 |
1/8 |
1/8 |
1/8 |
|
Connections (Sweat)
|
| Chilled Water Inlet, OD (in) |
5/8 |
5/8 |
7/8 |
7/8 |
7/8 |
7/8 |
| Chilled Water Outlet, OD (in) |
5/8 |
5/8 |
7/8 |
7/8 |
7/8 |
7/8 |
| Condensate, ID (in) |
3/8 |
3/8 |
3/8 |
3/8 |
3/8 |
3/8 |
|
Filtration
|
| Type |
Cleanable Wire Framed |
| Quantity |
1 |
1 |
2 |
2 |
3 |
3 |
| Arrestance |
80% |
80% |
80% |
80% |
80% |
80% |
|
Condensate Pump
|
| Maximum Head (in) |
30 |
30 |
30 |
30 |
30 |
30 |
| Nominal Flow Rate (gpm) |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
|
Heating Option
|
| Electric Heating Capacity (kW) |
1.5 |
4.5 |
3.0 |
3.0 |
5.0 |
5.0 |
| Hot Water Heating Capacity (Btuh) |
13799 |
N/A |
29258 |
30946 |
46455 |
51600 |
| Hot Water Coil Connection, OD (in) (Sweat) |
5/8 |
N/A |
5/8 |
5/8 |
5/8 |
5/8 |
|
Branch Duct Option
|
| Branch Duct Connections (qty) |
2 |
2 |
2 |
2 |
2 |
2 |
| Branch Duct Diameter (in) |
5 |
5 |
5 |
5 |
5 |
5 |
| Ducted Air Volume (cfm) |
80 |
80 |
100 |
125 |
200 |
220 |
|
Fresh Air Option
|
| Fresh Air Connections (qty) |
1-2 |
1-2 |
1-3 |
1-3 |
1-3 |
2-3 |
| Fresh Air Duct Diameter (in) |
3 |
3 |
3 |
3 |
3 |
3 |
| Fresh Air Volume (cfm) |
40 |
40 |
60 |
62 |
90 |
95 |
LEGEND
ID = Inside Diameter
OD = Outside Diameter
Notes
1. Cooling capacity based on 80°F dry bulb/67°F wet bulb indoor and a 45°F entering/55°F leaving chilled water temperature.
2. Heating capacity based on water temperature of 180°F inlet/160°F outlet and an air temperature of 70°F dry bulb.
3. Ducted air volume based on maximum air volume available through one branch duct 6ft. long, with cassette fan(s) at high speed and corresponding fascia aperture closed.
4. Fresh air volume based on maximum fresh air through all knockouts connected one 10ft. long duct with fan at high speed.