Carrier Air 4 Life Manual

9T-- 326
UNITOPERATION
2.1 OPERATING INSTRUCTIONS
Before attempting to operate thesystem, power mustbe available
from the vehicle battery. If the engine is not running, start the
engine. Most systems willnot operate unless asignal is received
to the controller from the vehicle ignition.
Carrier Transport AirConditioning system’s can be supplied with
two different type manual controls. the Standard Manual Control
and the Florida Control
1 2 3
45
1 Control Panel Housing
2 Nameplate (Switch
Mounting)
3...

10 T-- 326 There will be some applications where the switch mounting plate,
thermostat and fan speed switch are mounted in the drivers area
without the control panel housing.
On other applications the vehicle manufacturer (OEM) will supply
different type controls for the air conditioningsystem. Refer to OEM
technical manual for operating instructions.
2.2.1 Fan Speed Switch (three speed or variable)
Turning this switch clockwise will energize the evaporator and
condenser fan motors. The compressor clutch...

11T-- 326 Move the ON/OFF switch to the ON position. A green light will
illuminate indicating that the controller has power. At the same time
the evaporator fans will operate in either Low, Medium or High
speed, depending on the Fan Speed switch location.
1
2
3
4
5
1FacePlate
2 Green Light
3 Rocker Switch, 2 Position, ON/OFF
4 Rocker Switch, 3 Position, LOW-- MED-- HIGH
5 Thermostat Control (Potentiometer)
Figure 2-2 Switch Assembly (TEMPCON)
2.3.2 Fan Speed Switch -- 3 Speed
The evaporator fan speeds...

12 T-- 326
Fuse
3Amp In-- Line
Fuse &
Holder
Fuse
Cover
Figure 2-3 In--Line Fuse & Holder (3 Amp)
2.3.4 In -- line Fuse
The controller is protected by a 3 Amp ATO type in-- line fuse
(Figure 2-3). To replace the fuse do the following:
a. Make sure ignition power is off.
b. Grasp fuse cover at finger grips and lift off cover.
c. Remove fuse and check if fuse is defective.
d. Replace if needed.
e. Push fuse cover back on to in-- line holder.
f. Restore ignition power and place ON/OFF switch to ON.
2.4...

13T-- 326
SYSTEMMAINTENANCE
3.1MAINTENANCESCHEDULE
SYSTEMOPERATIONONOFFOPERATION
a. Daily Maintenance
XX
XPre-- trip inspection -- after starting. (Refer to para-
graph 2.4)
Check tension and condition of drive belts.
b. Weekly Maintenance
X
XPerform daily inspection
Check condenser, evaporator coils and return air
filters for cleanliness
c. Monthly Maintenance
X
X
X
X
X
XPerform weekly inspection
Clean or replace Evaporator return air filters
Inspect Condenser coil fins -- Clean when neces-
sary
Inspect...

14 T-- 326SYSTEM
OPERATION(Continued)ONOFFOPERATION(Continued)
e. Semi--Annual Inspection and Maintenance
X
X
X
X
X
X
X
Check system pressures.
Check refrigerant in sight glass.
Check element in the the sight glass. (Green is dry
-- Yellow is wet)
Inspect condenser fan blades.
Open bus heater valves (In winter).
Close bus heater valves (In spring).
Remove or install optional condenser winter guard
kit.
f. Annual Inspection and Maintenance
X
X
X
X
XInspect electrical panel and terminals. Clean if
needed...

Index 1
INDEX
C
Clutch -- Electro-- Magnetic, 4
Compressor, 4
Condenser, 4
Control Panel -- Florida, 10
Control Panel -- Standard, 9
E
Evaporator, 5
F
Filter/Dryer, 5
Fuse, In-- Line, 12
I
Introduction, 1
M
Maintenance Schedule, 13
Max System, 4
Model Tag, 6
O
Operating Instructions, 9
P
Pre-- Trip Inspection, 12
R
Refrigerant, 3, 6
Resistor, 5
S
Safety, 3
Sensor -- Return Air, 4
Serial Tag, 6
Split System, 4
Stand-- Alone System, 4
Switch -- Fan Speed, 10, 11
Switch -- ON/OFF, 10
Switch -- Pressure, 6...

Index 2
INDEX(CONTINUED)
U
Unit Information, 4
Unit Operation, 9
V
Valve -- Expansion/Block, 5
W
Warranty/Service, 14
What Is Air Conditioning, 4 

©2005 Carrier CorporationDPrinted in U. S. A. 0605A member of the United Technologies Corporation family. Stock symbol UTX
Carrier Transport Air Conditioning
50 Grumbacher Road
York PA 17402 U.S A
Tel: 1 --800 --673 --2431
Fax: 1 --717 --764 --0401
Carrier Transicold Division,
Carrier Corporation
Transport Air Conditioning Group
P.O. Box 4805
Syracuse, N.Y. 13221 U.S A
www.carrier.transicold.com