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T--298
1-1
SECTION 1
DESCRIPTION
1.1 INTRODUCTION
This manual contains service instructions and electrical
data for the AirV, Carrier Transport Air Conditioning’s
Recreational Vehicle air conditioning unit.
The AirV units are two piece systems, consisting of the
Upper Unit and the Ceiling unit. The Upper Unit contains
the refrigeration system while the Ceiling Unit contains
the c ontrols andvents. TheCeiling Units are availablein
a free--blow or ducted configuration.
The free--blow units (see Figure 1-2) deliver air to the
vehicle by means of front and rear end vents and one
downward vent (air shower). The vents may all be
opened or closed to direct air as desired. The f ront and
rear vents are fitted with motorized dampers that
oscillates to produce an “air--sweep” effect. These units
may be fitted with optional electric heat.
The duc ted units (see Figure 1-5 and Figure 1-6) deliver
air through ducting built in the vehicle ceiling. These
units are fitted with a 12 VDC microprocessor control
system, a display panel (PCB display) and a remote
controller. These units may be wired to provide
thermostatic control of the vehicle furnace.
Carrier’s AirV air conditioning models include cooling
only units, heating/cooling units, and heat pump units.
The cooling only units are available with free blow or
ducted air delivery. Cooling units with heat strips are
available for free blow only.
Operation of the AirV units iscontrolled automatically by
the temperature controller (thermostat), which
maintains the vehicle’ s interior temperature at the
desired set point. Free Blow, cool--only units are
available with a wall mounted thermostat.
Table 1-1 lists model numbers and descriptions of the
AirV units, and Table 1-2 lists additional support
manuals that are available.
1.2 SERIAL NUMBER IDENTIFICATION
Separate part numbers and serial numbers areprovided
for the upper and lower unit assemblies The numbers
may be found on a plate readable from inside the
vehicle, See Figure 1-7.
The first two numbers of the serial number , see
Figure 3-22, is the week the unitwas manufactured. For
example, 01 would designate the first week of the year
and 52 would designate the last week of the year.
The third and fourth numbers designate the year in
which the unit was manufactured. For example, 99
would represent the year 1999, 00 the year 2000, and
so on.
The letter Y and all t he numbers after i t designates the
unit serial number. Example: Y43210
A serial number of 1303Y12345 designates that the unit
was manufactured the 13th week of 2003 and the serial
number is Y12345.
MODEL No.
Part No.
VOLTS
ph
CAPACITY
AMPS
DATE OF Mfg
SERIAL No.
DESIGN PSIG HIGH 350 LO 150
oz
kg
RLA
FLA
R--22
USE CEILING ASSY/ANY
COMPRESSOR
FAN MOTOR
68RV14102A
99-- 00468--01
V
115
1
hz
60
13,500
Btu/h
3,955
W
13.5
A
05/03
1303Y12345
15.9
0.45
12.5
2.58
99-- 00469--01
Carrier
Air Conditioning
C
Division of Carrier Corporation
USE AMP20
TIME DELAY FUSE OR
CIRCUIT BREAKER
Figure 1-1 Model/Serial Number Plate (Typical)
1.3 DESIGN CHANGE DESCRIPTIONS
The following list provides a description of changes in
design and serial number breaks for those changes.
1400Y A diode was added to the Ducted Ceiling
assembly control board to stop DC ripple from the
converters,
2900Y Cover screw coating was changed in order to
eliminate corrosion.
3400Y The plastic shroud was modified to improve
drainage.
5100Y A new compressor and capacitor is introduced,
improving stability and increasing capacity.
1201Y The temperature sensor was moved to the grill
to improve temperature sensing during furnace mode,
2501Y The dual air sweep was added.
4501Y A switch was added to skip compressor
malfunction test.
4601Y Change in material was made in order to
strengthen the fan propeller.
4901Y The mounting bolt lengths were increased 3/4
inch.
4901Y The polar white ducted ceiling color was cut--in.
0703Y & 1903Y New style PCB -- Cool Mode -- Control
& Power Assembly (Fans shut off i n auto mode).
0803Y & 2603Y New style PCB -- Heat Pump -- Control
& Power Assembly (Fans shut off i n auto mode).
4204Y Minimum furnace setpoint loweredfrom 63°Fto
45°F.