4
V. Principles of Operation
The main component of the heat exchangers is counterflow aluminum element through
which heat transfer occurs.
Ambient blower draws ambient air from the bottom inlet through an aluminum mesh air
filter, through the element and exhaust it through a discharge grill.
Cabinet blower draws cabinet air from the top inlet through the element and exhaust it
through the bottom discharge into the cabinet.
VI. Specific Model Data
Blower
Ambient Air
with
Heat Load
Heat
Exchanger
Cooled Air
Cabinet
Blower
Heated Air
Ambient
Air
In an Air-to-Air Heat
Exchanger, heat from air
surrounding the compo-
nents is removed by a
specially designed heat
transfer element before
being routed back into the
enclosure.
Major Component Replacements
KNHX38
KNHX47
KNHX59
KNHX38E
KNHX47E
KNHX59E
Condenser Blower Assembly
6015-00-129
6015-00-129
8060-00-11
Condenser Blower Capacitor
0452-06
0452-06
0452-03
Condenser Blower Blower Motor
0261-08
0261-08
0261-149
Evaporator Blower Assembly
6015-00-129
6015-00-129
604559-00-36
Evaporator Blower Capacitor
0452-06
0452-06
0452-03
Evaporator Blower Blower Motor
0261-08
0261-08
0261-149
Filter
10871F
10871F
10871F
Above parts are for 115V units. For 230V, consult factory.
Technical Data
**
KNHX38
115
3.00
340
160
131
44
88
115
KNHX38E
115
3.00
340
160
131
44
88
115
K2NHX38
230
2.10
440
160
131
46
92
115
K2NHX38E
230
2.10
440
160
131
46
92
115
KNHX47
115
3.00
340
160
131
54
108
135
KNHX47E
115
3.00
340
160
131
54
108
135
K2NHX47
230
2.10
440
160
131
56
112
135
K2NHX47E
230
2.10
440
160
131
56
112
135
KNHX59
115
4.50
400
160
131
65
130
170
KNHX59E
115
4.50
400
160
131
65
130
170
K2NHX59
230
3.30
660
160
131
65
130
170
K2NHX59E
230
3.30
660
160
131
65
130
170
Maximum Allowable
Performance
Approx.
Power
Temperature °F
Watts/°F
Weight
Model
Volts
Amps
Watts
Enclosure Ambient
Air In
Air Out
(lbs.)
**60 Hz. operation. For 50 Hz. operation, consult Kooltronic.
