Thru Mount Thermoelectric Air Conditioners
MAA640T-48
MAA600T-12/24
The MAA640T-48 and the MAA600T-12/24 Thermoelectric
air conditioners are designed for electronic cabinets, refrig-
eration and environmental chambers. They can cool to 78˚F
below ambient or maintain ambient temperature while
removing up to 640 BTU/Hr (@ 77˚F ambient). These units
offer increased capacity within a compact design, making
them ideal where space is limited. Because there is no air
exchanged between the cabinet and the ambient, the
MAA640T-48 and MAA600T-12/24 are ideal for NEMA 12
environments. Optionally, a harsh environment version of
this series, suitable for maintaining NEMA 4X or IP54 rat-
ings is available. These air conditioners are virtually main-
tenance-free, with no filter to change, and can be mounted
in any orientation, offering design flexibility with solid-state
reliability.
Model MAA600T-24
Wiring Schematic (Power Connector)
Model Number Nomenclature
4
3
2
1
M A A ___ T
–
___ ___
X = Maintains NEMA 4X and IP54 ratings
Leave blank for standard NEMA12
Voltage: 12 = 12 VDC
24 = 24 VDC
Thru Mount
48 = 48 VDC
Capacity (BTU/Hr):
Ambient Side (Air)
Cabinet Side (Air)
MELCOR
640
600
(48 VDC)
(12/24 VDC)
Position
1
2
3
4
Description
TEC +
TEC
-
-
FAN +
FAN
Specifications:
Model:
Capacity
Input Voltage
Max. Ambient Temp.**
Current (Running)
Weight
Rating Maintained
Overall Dimensions
MAA600T-12
600 BTU/Hr (176 Watts)
12 VDC
140˚F / 60˚C
29.0 amps
16.3 lbs. (7.4 kg)
NEMA 12 or 4X / IP54
10” H x 7” W x 9.6” D
254mm x 178mm x 244mm
MAA600T-24
600 BTU/Hr (176 Watts)
24 VDC
140˚F / 60˚C
14.5 amps
16.3 lbs. (7.4 kg)
NEMA 12 or 4X / IP54
10” H x 7” W x 9.6” D
254mm x 178mm x 244mm
MAA640T-48
640 BTU/Hr (188 Watts)
48 VDC
140˚F / 60˚C
9.0 amps
16.3 lbs. (7.4 kg)
NEMA 12 or 4X / IP54
10” H x 7” W x 9.6” D
254mm x 178mm x 244mm
** Consult MELCOR for higher ambient temperature.
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1040 Spruce Street • Trenton, NJ 08648 • TEL: 609-393-4178 • FAX: 609-393-9461 • WEB: www.melcor.com • E-Mail: tecooler@melcor.com
Thru Mount Thermoelectric Air Conditioners
Performance Curves:
MAA640T-48
0
10
0
-10
-20
-30
-40
-50
0
100
200
300
400
500
Q Required (BTU/HR)
600
700
77˚F (25˚C)
Ambient
Q Required (Watts)
59
88
117
147
176
205
234
18
0
-18
29
Important:
The air conditioner performance curves
are dependent upon active
and passive heat loads. To calculate
passive cabinet heat gain, see the
instructions on pages 6 and 7.
For assistance contact MELCOR.
T (˚F)
T (˚C)
140˚F (60˚C)
Ambient
-36
-54
-72
-90
800
MAA600T-12/24
Q Required (Watts)
0
10
0
-10
-20
-30
-40
-50
0
100
200
300
400
500
Q Required (BTU/HR)
600
700
77˚F (25˚C)
Ambient
29
59
88
117
147
176
205
234
18
0
-18
Installation Cutout
T (˚C)
140˚F (60˚C)
Ambient
T (˚F)
-36
-54
-72
-90
800
T = Tmax Cabinet - Tmax Ambient
Dimensional Drawing
Inches (mm)
1040 Spruce Street • Trenton, NJ 08648 • TEL: 609-393-4178 • FAX: 609-393-9461 • WEB: www.melcor.com • E-Mail: tecooler@melcor.com
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