KNHX38 AIR-TO-AIR
PANEL-MOUNTED HEAT EXCHANGERS
Dimensions, inches [mm], are for reference only and subject to change.
* 60 Hz. operation. For 50 Hz. operation, consult Kooltronic.
knhx38.qxd 12/7/15
DIMENSIONS
KNHX38
A 37.75 [958.9]
B 37.00 [939.8]
C 36.69 [931.9]
D 12.75 [323.9]
E 12.75 [323.9]
F 18.13 [460.5]
G 2.50 [63.5]
H 4.34 [110.2]
J6
K27
/
R
NEMA
TYPE 4/4X
MAINTAINED
UNIT MUST BE 12" [300mm]
MINIMUM ABOVE FLOOR
FOR FILTER ACCESS
MOUNTING PLAN
UNIT
MOUNTING PLAN
M/TAB & CUTOUTS
TECHNICAL DATA*
Maximum Performance Approx.
Power Temperature ºF Watts/ºF Weight
Model Volts Amps Watts Enclosure Ambient (Air In) (lbs.)
KNHX38 115 3.00 340 160 -20 to 131 44 115
K2NHX38 230 2.10 440 160 -20 to 131 46 115
ACCESSORIES
AND OPTIONS
Filter Recoating Adhesive
Lifting Eyes
Low Airflow Detector
Other voltages and frequencies
Replacement Filters
Special materials or finishes
Special motors, line cords, or
connectors
Temperature Alarm
STANDARD FEATURES
Closed-Loop Near-Ambient Cooling
Epoxy-coated aluminum element
Filter
Gasketed Flanges
NEMA 4/4X Rating Maintained (UL50)
Stainless Steel Shell
UL Listed
PERFORMANCE*
Find additional information on this
model at kooltronic.com, or use the
Technical Documents QR code
below.
Technical
Documents
4000
130
3500
120
3000
110
2500
100
2000
1500
1000
Cooling Capacity (Watts)
500
0
40
50 60
KNHX38
Maximum enclosure
air temperature ºF
70 80 90 100 110 120 130
Ambient Temperature (ºF)
17.06
[433.3]
POWE
18.00
CORD
B
FILTER
A
3
2
1
4
18.56
[471.4]
TAB
M
[457.2]
FILTERED CONDENSER
1
AIR INLET (Ambient Air In)
CONDENSER OUTLET
2
(Warm Ambient Air Out)
WARM AIR RETURN FROM
3
ENCLOSURE
COOL AIR OUTLET
4
TO ENCLOSURE
17.06
[433.3]
18.00
[457.2]
B
A
POWER
CORD
[471.4]
2
18.56
3
4
1
H
TYP.
1.50
[38.1]
1.28
[32.5]
4.00
[101.6]
TYP.
UNIT
OUTLINE
0.38
[9.7]
1.50
[38.1]
18.56
[471.4]
3
17.75
[450.9]
4
5.19
[131.8]
TYP.
C
0.69
[17.5]
(K) .218
[5.5] DIA.
HOLES
A
1.78
[45.2]
2.88
[73.2]
D
E
TYP.
9.88
[251.0]
5.56
[141.2]
3.22
[81.8]
15.00
[381.0]
12.81
[325.4]
3
4
12.13
[308.1]
( J ) .312 [7.9]
DIA. HOLES
9.75
[247.7]
F
G
M/TAB
OUTLINE
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