Carrier T--298 service manual Section Description, Introduction, Serial Number Identification

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 controls and vents. The Ceiling Units are available in 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 front 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 ducted 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 is controlled 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 are provided 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 unit was 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 the numbers after it 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.	68RV14102A
	Part No.	99-00468-01
	VOLTS		115	V
Carrier	ph	1	hz	60
Air Conditioning			13,500	Btu/h
C	CAPACITY
Division of Carrier Corporation			3,955	W
USE 20 AMP	AMPS		13.5	A
TIME DELAY FUSE OR	DATE OF Mfg		05/03
CIRCUIT BREAKER
	SERIAL No.	1303Y12345

DESIGN PSIG HIGH 350 LO 150

	R--22	oz	15.9
		kg	0.45
COMPRESSOR		RLA	12.5
FAN MOTOR		FLA	2.58
USE CEILING ASSY/ANY		99-00469-01

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 in auto mode).

0803Y & 2603Y New style PCB -- Heat Pump -- Control & Power Assembly (Fans shut off in auto mode).

4204Y Minimum furnace setpoint lowered from 63°F to 45°F.

1-1 T--298