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b. Evaporator Section. The evaporator section
contains the evaporator coil, fan motor and fan,
control module and junction box, air filter, heating
elements and thermal expansion valve. When
cooling, air in the evaporator section is forced over
the evaporator coil by the evaporator fan which
lowers the temperature of the air before it is
distributed into the space to be conditioned. When
heating, air is circulated over the heating elements
and distributed by the evaporator fan. Evaporator
fan speed is controlled by a selector switch located
on control module.
c. Condenser Section. The condenser section
contains the hermetically sealed motor compressor,
condenser coil, condenser fan and motor, service
valves, filter dryer, equalizer solenoid valve, liquid
quench valve, pressure regulator valve, electrical
power connectors, and the necessary refrigerant.
T h e c o m p r e s s o r m e c h a n i c a l l y c o m p r e s s es
refrigerant vapor to a condensing condition and
discharges it into the condenser coil through the hot
gas line. Out-side air, drawn over the condenser coil
surface by the condenser fan, condenses the
refrigerant vapor to a liquid. The liquid then leaves
the condensing coil and returns to the thermal
expansion valve through the liquid line. Condenser
fan speed is controlled with a thermostatic switch
located on rear of unit. At ambient temperature of
100°F (±5° F) or above the condenser fan speed
will turn at high speed but at ambient temperature
below 100°F (±5° F) the condenser fan will turn at
low speed. Due to residual mass heat there will be a
delayed reaction time for this to happen when
ambient temperature drops below
t h e 1 00GF
change-over point.
1-5. Differences Between Models
a. This manual covers Trane Models MAC6H9-
115-1101-01, MAC6H9-230-1101-02, MAC6H9-
208-1101-03,
and
MAC4H-208-1101-04
air
conditioners. Each model is designed to operate on
a different set of incoming power current
characteristics.
The electrical characteristics for
each model are as follows:
(1)
MAC6H9-115-1101-01.
Single
phase,
50/60 hertz,
115
volts.
(2) MAC6H9-230-1101-02. Single phase,
50/60 hertz, 230 volts.
(3) MAC6H9-208-1101-03. Three phase,
50/60 hertz, 208 volts.
(4) MAC4H9-208-1101-04. Three phase, 400
hertz, 208 volts.
b. W here instructions and descriptions apply
only to specific models, the model numbers to
which the descriptions or instructions apply will be
specified. If no model number is specified, the
instructions or descriptions apply to all four
models.
1-6. Identification
a. Identification.
major identification
and Tabulated Data
Each air conditioner has one
plate mounted on the side of
the unit. The plate specifies nomenclature,
manufacturer, military part number BTU / HR,
phase, hertz, volts, serial number, contract number,
and shipping weight.
A manufacturers iden-
tification plate mounted just below the military
plate contains the manufacturer’s name and a d-
dress and the model and serial numbers.
b. Tabulated Data.
(1) Air conditioner (Model MAC6H9-115-
1101-01).
Nomenclature . . . . . . . . . . . .
Manufacturer . . . . . . . . . . . .
Capacity:
Cooling . . . . . . . . . . . . . . .
Heating . . . . . . . . . . . . . . .
Phase . . . . . . . . . . . . . . . . . . .
Hertz . . . . . . . . . . . . . . . . . . .
volts . . . . . . . . . . . . . . . . . . .
Air conditioner, horizontal,
compact
The Trane Company
9,000 BTU / HR (British
Thermal Units per hour)
7,000 BTU / HR
1
50 / 60
115
(2) Air conditioner (Model MA C6H9-230-
1101-02).
N o m e n c l a t u r e A i r c o n d i t i o n e r . h o r i z o n t a l,
compact
M a n u f a c t u r e r . . The Trane Company
Capacity:
Cooling.
.
9,000
BTU/HR
Heating . . . . . . . . . . . . . . .7,000 BTU /HR
Phase . . . . . . . . . . . . . .
Hertz . . . . . . . .
volts
(3) Air conditioner
1101-03).
N o m e n c l a t u r e . .
Manufacturer . . . . . . . . . . .
Capacity:
Cooling . . . . . . . . . . . .
Heating . . . . . . . . . . .
P h a s e .
. . .
H
e
r
t
z
.
volts . . . . . . . . . . . . . . . .
1
5 0 / 60
230
(Model MAC6H9-208-
Air conditioner, horizontal,
compact
The Trane Company
9,()()() BTU / HR
7,000 BTU / HR
3
5 0 / 6 0
208
(4) Air conditioner (Model MAC4H9-208-
1101-04).
Nomenclature
.
.
Manufacturer
.
.
Capacity:
Cooling. . . . . . .
H
e
a
t
i
n g
Phase.
3
Hertz
400
volts. .. . . . . . . 208
{5) Condenser fan motor (B2) and/or
evaporator fan motor (B3) (Model MAC6H9-115-
1101-01).
Manufacturer
.
.
Model
Air conditioner. horizontal,
compact
The Trane Company
9,000 BTU / HR
7.000 BTU / HR
IMC Magenetics Corp.
BC4520-1 (modified by
m a r k i n g " 9 7 4 0 3
13216E6140-1"
115
50 / 60
Volts
Hertz
1-5
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