 Air to Water Heat Exchangers
Our air to water heat exchanger are a great fit for a variety of heating and cooling applications. These compact units are designed to maximize heat transfer by utilizing a series of 3/8" copper tubes with a high density of aluminum fins. These fins are spaced such that the fin density is 12 fins per inch. This design enables heating loads of 50,000-60,000 Btu per square foot (please see performance chart below). Despite such high fin density there is minimal flow resistance through these coils.
Applications
- Residential Heating
- Apartment Buildings and Condominiums
- Hybrid Systems
- Air Conditioning
- Dehumidification
Features of the Air to Water Heat Exchanger:
|
Materials:
|
Tube Coil
|
3/8" seamless Copper
| |
|
Plate Fin
|
Aluminum
| |
|
Core Housing
|
Galvanized Steel
| |
|
Header
|
Copper
| |
Rating:
|
Tubeside
|
175 psig/350F
| |
Plate Fin Spacing
|
12/inch
|
| |
All Connections
|
1" ID Solder
|
|
 Features of the Air to Water Heat Exchanger:
- Tube Coil is manufactured entirely of 3/8" seamless copper.
- Plate Fin is made from Aluminum.
- The core housing is made from galvanized steel.
- Header is made from Copper and has a 1" ID.
- The Tubeside is rated at 175 psig/350F.
- Plate Fin Spacing is 12 per inch.
- All connections are 1 inch ID Solder and can come with an optional flange and NPT.
- Units kept in stock for immediate delivery.
Dimensional Table
|
Model
|
|
|
|
|
|
|
|
|
Dimensions in
| |
|
|
|
|
|
|
|
|
|
A
|
B
|
C
|
D**
|
Price
| |
NWE12 x 12
|
CFM
|
Ent-Water
|
500
|
600
|
700
|
800
|
900
|
1016
|
12
|
12
|
3.5
|
7 3/4
|
| |
|
pd in.wc
|
T(F)
|
0.145
|
0.155
|
0.165
|
0.175
|
0.185
|
0.195
|
|
|
|
|
| |
Based on
|
Load
|
140
|
28080
|
29160
|
34171
|
36115
|
37325
|
38400
|
|
|
|
|
| |
6 gpm
|
in
|
160
|
35978
|
37362
|
43782
|
46273
|
47822
|
49200
|
|
|
|
|
| |
pd 0.49psi
|
BTU/h
|
180
|
43875
|
45563
|
53392
|
56430
|
58320
|
60000
|
|
|
|
|
| |
NWE16 x 16
|
CFM
|
Ent-Water
|
850
|
950
|
1050
|
1150
|
1250
|
1355
|
16
|
16
|
3.5
|
11 1/2
|
| |
pd in.wc
|
T(F)
|
0.172
|
0.189
|
0.206
|
0.223
|
0.240
|
0.257
|
|
|
|
|
| |
Based on
|
Load
|
140
|
44064
|
46580
|
48535
|
49928
|
50760
|
51200
|
|
|
|
|
| |
8 gpm
|
in
|
160
|
56457
|
59681
|
62185
|
63970
|
65036
|
65600
|
|
|
|
|
| |
pd 0.51psi
|
BTU/h
|
180
|
68850
|
72782
|
75836
|
78013
|
79312
|
80000
|
|
|
|
|
| |
NWE16 x 18
|
CFM
|
Ent-Water
|
1100
|
1200
|
1300
|
1400
|
1500
|
1693
|
16
|
18
|
3.5
|
11 1/2
|
| |
pd in.wc
|
T(F)
|
0.189
|
0.206
|
0.223
|
0.240
|
0.257
|
0.274
|
|
|
|
|
| |
Based on
|
Load
|
140
|
57024
|
58838
|
60091
|
60782
|
60912
|
64000
|
|
|
|
|
| |
10 gpm
|
in
|
160
|
73062
|
75386
|
76992
|
77877
|
78044
|
82000
|
|
|
|
|
| |
pd 0.81psi
|
BTU/h
|
180
|
89100
|
91935
|
93892
|
94972
|
95175
|
100000
|
|
|
|
|
| |
NWE18 x 18
|
CFM
|
Ent-Water
|
1500
|
1600
|
1700
|
1800
|
1900
|
2032
|
18
|
18
|
3.5
|
13
|
| |
pd in.wc
|
T(F)
|
0.24
|
0.257
|
0.274
|
0.291
|
0.308
|
0.325
|
|
|
|
|
| |
Based on
|
Load
|
140
|
71280
|
72921
|
74174
|
75038
|
75513
|
76800
|
|
|
|
|
| |
12 gpm
|
in
|
160
|
91327
|
93430
|
95035
|
96142
|
78044
|
98400
|
|
|
|
|
| |
pd 0.91psi
|
BTU/h
|
180
|
111375
|
113940
|
115897
|
117247
|
117990
|
120000
|
|
|
|
|
| |
NWE18 x 20
|
CFM
|
Ent-Water
|
1850
|
1950
|
2050
|
2150
|
2250
|
2370
|
18
|
20
|
3.5
|
13
|
| |
pd in.wc
|
T(F)
|
0.274
|
0.291
|
0.308
|
0.325
|
0.342
|
0.359
|
|
|
|
|
| |
Based on
|
Load
|
140
|
83916
|
85503
|
86788
|
87771
|
88452
|
89600
|
|
|
|
|
| |
14 gpm
|
in
|
160
|
107517
|
109551
|
111198
|
112457
|
113329
|
114800
|
|
|
|
|
| |
pd 1.32psi
|
BTU/h
|
180
|
131118
|
133599
|
135607
|
137143
|
138206
|
140000
|
|
|
|
|
| |
NWE19 x 20
|
CFM
|
Ent-Water
|
2050
|
2150
|
2250
|
2350
|
2450
|
2540
|
20
|
19
|
3.5
|
14 1/2
|
| |
pd in.wc
|
T(F)
|
0.303
|
0.320
|
0.337
|
0.354
|
0.371
|
0.388
|
|
|
|
|
| |
Based on
|
Load
|
140
|
88560
|
90558
|
92340
|
93906
|
95256
|
96000
|
|
|
|
|
| |
15 gpm
|
in
|
160
|
113467
|
116027
|
118310
|
120317
|
122046
|
123000
|
|
|
|
|
| |
pd 1.49psi
|
BTU/h
|
180
|
138375
|
141496
|
144281
|
146728
|
148837
|
150000
|
|
|
|
|
| |
NWE20 x 20
|
CFM
|
Ent-Water
|
1950
|
2100
|
2250
|
2400
|
2550
|
2708
|
20
|
20
|
3.5
|
14 1/2
|
| |
pd in.wc
|
T(F)
|
0.272
|
0.298
|
0.323
|
0.349
|
0.374
|
0.400
|
|
|
|
|
| |
Based on
|
Load
|
140
|
92664
|
95709
|
98172
|
100051
|
101347
|
102400
|
|
|
|
|
| |
16 gpm
|
in
|
160
|
118725
|
122627
|
125782
|
128190
|
129851
|
131200
|
|
|
|
|
| |
pd 1.38psi
|
BTU/h
|
180
|
144787
|
149546
|
153393
|
156330
|
158355
|
160000
|
|
|
|
|
| |
NWE22 x 22
|
CFM
|
Ent-Water
|
2400
|
2600
|
2800
|
3000
|
3200
|
3386
|
22
|
22
|
3.5
|
17 1/2
|
| |
pd in.wc
|
T(F)
|
0.287
|
0.321
|
0.355
|
0.389
|
0.423
|
0.457
|
|
|
|
|
| |
Based on
|
Load
|
140
|
114048
|
118497
|
122169
|
125064
|
127180
|
128000
|
|
|
|
|
| |
21 gpm
|
in
|
160
|
146124
|
151825
|
156529
|
160238
|
162950
|
164000
|
|
|
|
|
| |
pd 2.08psi
|
BTU/h
|
180
|
178200
|
185152
|
190890
|
195412
|
198720
|
200000
|
|
|
|
|
| |
NWE20 x 25
|
CFM
|
Ent-Water
|
2200
|
2400
|
2600
|
2800
|
3000
|
3216
|
20
|
25
|
3.5
|
14 1/2
|
| |
pd in.wc
|
T(F)
|
0.252
|
0.286
|
0.320
|
0.354
|
0.388
|
0.422
|
|
|
|
|
| |
Based on
|
Load
|
140
|
104544
|
109382
|
113443
|
116726
|
119232
|
121600
|
|
|
|
|
| |
20 gpm
|
in
|
160
|
133947
|
140146
|
145349
|
149555
|
152766
|
155800
|
|
|
|
|
| |
pd 2.56psi
|
BTU/h
|
180
|
163350
|
170910
|
177255
|
182385
|
186300
|
190000
|
|
|
|
|
| |
NWE22 x 25
|
CFM
|
Ent-Water
|
2700
|
2900
|
3100
|
3300
|
3500
|
3725
|
22
|
25
|
3.5
|
17 1/2
|
| |
pd in.wc
|
T(F)
|
0.320
|
0.354
|
0.388
|
0.422
|
0.456
|
0.490
|
|
|
|
|
| |
Based on
|
Load
|
140
|
128304
|
132170
|
135259
|
137570
|
139104
|
140800
|
|
|
|
|
| |
23 gpm
|
in
|
160
|
164389
|
169343
|
173300
|
176262
|
178227
|
180400
|
|
|
|
|
| |
pd 2.77psi
|
BTU/h
|
180
|
200475
|
206516
|
211342
|
214953
|
217350
|
220000
|
|
|
|
|
|
Capacity based on boiler temperature 180 F.
** Can be customized.
| 