Carrier ComfortPro 250ION User manual

Operator’s Manual
ComfortPro
250ION and 240EPS
Electric Auxiliary Power Unit
62-12077 Rev B
TM


Operator’s Manual
for
ComfortPro
Electric A/C System
250ION and 240EPS
© 2022Carrier Corporation ●Printed in USA April 2022
TM


Table of Contents
Introduction...................................................................................1
ComfortPro Electric Models..........................................................2
Unit Identification..........................................................................3
Safety ...........................................................................................4
Components.................................................................................7
Operation....................................................................................11
Password Protection...................................................................13
Setting the Time and Date..........................................................15
Temperature Units (°F OR °C) ...................................................15
Timer ..........................................................................................16
Temp Start..................................................................................19
Configurable Items .....................................................................22
Inside the System and Fuses.....................................................24
Maintenance Schedule...............................................................26
Pretrip Inspection........................................................................28
Specifications .............................................................................28


1 62-12077
1. Introduction
NOTICE
This manual covers the 250ION and 240EPS ComfortPro
system. The truck must be equipped with a minimum 240
Amp alternator.
This guide has been prepared for the operator of Carrier Transicold
ComfortPro Electric Auxiliary Power Units (APU). It contains basic
instructions for the operation of the APU, safety information, and,
troubleshooting tips. Please take the time to read the information contained
in this booklet and refer to it whenever you have a question about the
operation of the Carrier Transicold Comfort Pro Electric APU.
Your Comfort Pro Electric APU has been engineered to provide long, trouble-
free performance when it is properly operated and maintained. The checks
outlined in this guide will help to minimize over-the-road problems. In
addition, a comprehensive maintenance program will help to ensure that the
unit continues to operate reliably. Such a maintenance program will also help
to control operating costs, increase the APU’s working life, and improve
performance.
This guide is intended to be an introduction to your APU and to provide
general assistance when needed. More comprehensive information can be
found in the Comfort Pro Electric APU Operation and Service manual (62-
12063), which is available from your local Carrier Transicold dealer. When
having your unit serviced, be sure to specify genuine Carrier Transicold
replacement parts for the highest quality and best reliability.
At Carrier Transicold, we are continually working to improve the products that
we build for our customers. As a result, unit specifications may change
without notice.

62-12077 2
2. ComfortPro
Electric Models
250ION
Provides air conditioning and optional heating to the truck
cab. Powered by lithium ion batteries and an advanced
power management system the 250ION provides extended
runtime and reduced charge time.
240EPS
Features the same air conditioning and optional heating
features of the 250ION. Utilizes AGM batteries and standard
power management system.

3 62-12077
3. Unit Identification
Each unit is identified by a decal attached to the power unit frame inside the
upper access cover. This decal is on the horizontal part of the frame between
the lower access cover and compressor base. An additional decal is located
on the top cover of the Climate Control Unit (CCU). The decal identifies the
model and serial number of the unit, type of refrigerant, and refrigerant
charge.
If a concern arises, refer to the information on this decal, and make a note of
the model and serial numbers before calling for assistance. This is required
when you contact an authorized Carrier Transicold dealer so that they may
properly assist you.
Figure 1 240EPS - Battery Powered A/C System

62-12077 4
4. Safety
These safety alerts alone cannot eliminate hazards that can occur. Strict
compliance with these special instructions when performing the installation
and maintenance, plus common sense, are major accident prevention
measures.
WARNING
!
WARNING - warns against hazards or unsafe conditions
which COULD result in severe personal injury or death.
CAUTION
!
CAUTION - warns against potential hazard or unsafe
practices which could result in minor personal injury.
NOTICE
NOTICE - warns against potential product or property
damage.
4.1 Fuel / Batteries
Exercise extreme caution when working near fuel or fuel-filled equipment. Do
not operate equipment during fueling operations. Use eye protection when
working near batteries, which contain acid and can explode. Do not smoke or
use open flames near batteries.
WARNING
!
California Proposition 65 Warning: The APU and CCU
components of this product contain lead, a chemical
known to the State of California to cause cancer and birth
defects and other reproductive harm.

5 62-12077
4.2 Electrical
Electric shock can cause severe personal injury, burns, and death. Before
working on any unit, disconnect the truck batteries and the auxiliary batteries.
Use only approved materials and methods when working on the electrical
system, and follow local electrical codes. Never work on the APU system or
the electrical circuitry when the APU system is running. Never work with
electricity in wet conditions.
4.3 Toxic Substances
Fuel, oil, coolant, and refrigerant are toxic and in some cases, carcinogenic.
Wear eye and hand protection at all times. Remove contaminated clothing
immediately and wash contaminated skin. Do not breathe in vapors.
4.4 Moving, High Energy, and Hot Parts
Moving, high energy (e.g. batteries) and hot parts can cause severe injury
and/or death. Before servicing on any unit, shut it off and disconnect it from
the truck and auxiliary batteries. Do not start until protective covers have
been replaced. Also, loose parts and tools falling into machinery can cause
severe accidents. Always ensure bolts and clamps are correctly torqued and
secured. Inspect mechanical components periodically for damage, corrosion,
and proper torque.
4.5 Misuse
The ComfortPro Electric is designed to provide cooling and heating (if
equipped) for vehicles in normal on-road conditions.
• DO NOT open the APU enclosure when the APU is running.
Moving parts inside the APU can cause severe injury and/ or
death. DO NOT restart the APU until the covers have been
replaced.
• Danger from moving, high energy and high temperature parts. In
order to perform some troubleshooting or maintenance tips, you
will have to open access covers to the APU or remove
enclosures. Before doing so, shut off the ComfortPro Electric. Do
not place fingers or tools within the condenser fan area and
ensure no tools or other metal objects bridge the positive cables/
lugs to the negative cables/lugs or the frame. Also, be aware that
some components may still be too hot to touch if the system was
recently running.

62-12077 6
• DO NOT start the APU when the enclosure cover is removed.
Operating with the cover off may result in injury and/or death.
• Once automatic functions are set the system could start at
anytime. Before servicing the unit be sure to disconnect the unit
from both the truck batteries and the auxiliary batteries to
prevent injury should the unit attempt to start while servicing. All
presets will remain once battery cable is reconnected.
• If you are not qualified to perform the specified check or the
required maintenance task, consult your dealer about servicing.
• DO NOT open the CCU enclosure. There are no operator-
serviceable parts inside.

7 62-12077
5. Components
The main components of the ComfortPro Electric are the Auxiliary Power
Unit (APU), the Climate Control Unit (CCU) and the Driver Control Panel
(DCP).
Figure 2 System Components
5.1 Auxiliary Power Unit (APU)
The APU is mounted on the truck’s frame rail. It consists of a compressor,
compressor controller, condenser fan, heat exchanger, and four batteries.
The APU’s batteries provide power to the system and are re-charged via the
truck’s alternator or the optional Shore Power kit.
WARNING
!
Do not open the APU enclosure when the APU is running
as moving parts inside the APU can cause severe injury
and/or death. Do not restart the APU until the covers have
been replaced.
Stand-Alone APU Installation
DULYHU&RQWURO3DQHO'&3
VHKLFOH)XHO7DQN
AX[LOLDU\3RZHU8QLW (APU)
TUXFN%DWWHU\
RHIULJHUDQW+RVHV
&OLPDWH&RQWURO8QLWCCU

62-12077 8
Figure 3 Climate Control Unit (CCU)
5.2 Climate Control Unit (CCU):
The CCU assembly consists of the following components:
• The CCU, which provides air conditioning to the sleeper cabin. This
unit is typically installed underneath the bunk.
• Three air ducts in the sleeper cabin, connected to the CCU.

9 62-12077
Figure 4 CCU Components
•Do not open the CCU enclosure. There are no operator-serviceable
parts inside.
• Ensure nothing is blocking airflow into the inlet filter face of the CCU
and that none of the ducts are damaged or kinked, otherwise HVAC
performance will be impacted.
CCU

62-12077 10
5.3 Driver Control Panel (DCP)
The DCP, which is mounted inside the sleeper cabin, controls the APU and
the CCU. The central panel on the DCP provides status information using
words and icons:
Figure 5 Driver Control Panel (DCP)
1. When visible, the A/C is cooling.
2. When visible, the A/C is running in maximum output mode.
3. Indicates the number of operating hours on the system.
4. Indicates the state of the APU.
• The APU is running in A/C, Heat or Fan Only mode
• The APU is off
5. Indicates that the battery voltage has reached its shutdown threshold. A
message that reads “LOW VOLTAGE” will appear with this symbol.
6. Indicates that Temp Start mode is enabled.
7. Indicates that Timer mode is enabled.
8. When visible, the heater system is heating (if equipped).
APU
ON/OFF
HVAC
OFF
ESC/
RESET
MENU
A/C FA N HEAT
HOURS
00000
MAX
APU
T1
2
1
43 5 6
8
7

11 62-12077
6. Operation
The HVAC system can be started manually from within the sleeper cabin
using the appropriate buttons on the DCP. If the A/C button is pressed, the
system will turn on and the compressor will cycle (automatically turn on and
off) to keep the sleeper cabin at the specified temperature. The A/C will
continue to operate until it is turned off or until the lower battery threshold
associated with A/C is reached. While in this A/C mode, the FAN button can
be pressed to cycle between FAN LOW, FAN MED and FAN HIGH speeds.
If a heater is installed and the “HEAT” button is pressed, the heater will turn
on and keep the sleeper cabin at the specified temperature. The heater will
continue to operate until you turn it off or until the lower battery threshold
associated with the heater is reached.
If both A/C and HEAT modes are off and the FAN button is pressed, the
system will run the fan at whatever speed is desired. By pressing the FAN
button again, it toggles between FAN OFF, FAN LOW, FAN MED and FAN
HIGH speeds. In all cases, the HVAC OFF or APU ON/OFF button can be
used to disable the mode.
6.1 A/C Operation
NOTE
The air conditioning function will not operate if the temperature
is lower than 65°F.
1. Press the AC button to activate the A/C. The A/C will turn on only if the tem-
perature is too high (to adjust the temperature, see below). When the A/C is
on, the A/C icon (
snowflake)
appears.
2. To set the temperature, press or the
◄
or
►
button when the A/C is
on.
The
notch on the temperature bar moves. The A/C compressor will automatically
turn on and off to maintain this temperature.
3. Press FAN to switch between low, medium and high fan speeds.
4. Press HVAC OFF to deactivate the A/C.
6.2 Setting Maximum A/C Output
To set Maximum Output, press and hold the A/C button for five seconds and
the word “MAX” will appear beside the snowflake. This will run the system at
maximum output for 30 minutes or until the setpoint temperature is reached.

62-12077 12
6.3 FAN Only Operation
A FAN only mode exists and can be run when the A/C and HEAT modes are
both off. With the A/C and HEAT modes off, the FAN only mode can be
enabled by pressing the FAN button. Once in this mode, press the FAN
button to toggle between off, low, medium and high fan speeds.
Press HVAC OFF to disable this FAN only mode.
6.4 Heater Operation (if equipped)
Heating mode is available when an optional heater is installed and
connected to the ComfortPro Electric system.
NOTICE
When heater is present, there is a Preventive Maintenance
(PM) requirement for the heater to be run for at least 30
minutes every 30 days. A reminder message on the DCP
screen that states “PM 30 DAY EXP 30 MIN HEAT ON” will
appear 30 days after the heater was last run. Pressing ESC
closes the message temporarily, however it will keep
appearing until this PM is complete.
Turing the heater on and off:
1. Press HEAT to activate the heater. The heater will turn on only if the cabin
temperature is too low. When the heater is on, the HEAT will appear.
2. To set the temperature, press or the
◄
or
►
button when the heater is
on.
The notch on the temperature bar moves. The heater will automatically
turn on and off to maintain this temperature.
3. The air heater option contains its own circulation fan and therefore the FAN
button on the DCP is not required to circulate air, however, if additional air
circulation is desired, the FAN button can be utilized to adjust the fan
between off, low, medium and high states.
4. The engine coolant heater option requires the FAN be used to adjust the fan
speed between off, low, medium and high speeds (default is off).
5. Press HVAC OFF to deactivate the heater.

13 62-12077
7. Password Protection
• Adding a password to the DCP will protect one or more functions so that
only a person who knows the password can set the function.
•
On a newly installed DCP, the password will be 000 or 0000, meaning
that no password protection is in place
.
• To password-protect functions, first change the factory password (see
Set Up Password Protection
). All functions will now be password
protected. Password protection can then be removed from selected
functions, as desired (see
Protect Functions with a Password
).
• The password can be changed at any time, if necessary. Note that if you
change the password to 000 or 0000, you will remove password
protection from all functions.
• If the password is ever lost, contact your dealer to have the password
reset.
7.1 Set Up Password Protection
1. Press the
MENU
button.
2. Press the
◄
or
►
button until “
SET/CHANGE PASSWORD
” is displayed,
then press the
MENU
button. “
ENTER PASSWORD
” is displayed with three
blank squares, one for each digit in the password. The first digit flashes.
3. Press the
◄
or
►
button until the first number in the password is displayed.
For example, if your password is “432” press
►
until “4” shows, then press
the
MENU
button.
4. Repeat for each digit in the password.
5. Press the
MENU
button again after entering the last digit. “
NEW
PASSWORD
” is displayed.
6. Repeat the above steps to enter the new password. “
CONFIRM
” is
displayed.
7. Enter the new password again, then press the
MENU
button to exit this
function.
WARNING
!
Once automatic functions are set the system could start at
anytime. Before servicing the unit be sure to disconnect
the unit from the batteries to prevent injury should the unit
attempt to start while servicing. All presets will remain
once battery cable is reconnected.

62-12077 14
7.2 Protect Functions with a Password
1. Press the
MENU
button.
2. Press the
◄
or
►
button until “
PASSWORD PROTECT
” is displayed, then
press the
MENU
button.
If this menu does not appear, then you have not
changed from the factory password.
Change the password and then try
again. “
ENTER PASSWORD
” is displayed with three blank squares, one for
each digit in the password. The first square flashes.
3. Press the
◄
or
►
button until the first number in the password is displayed,
then press the
MENU
button.
4. Repeat for each digit in the password.
5. Press the
MENU
button again after entering the last digit. The first feature
that can be password protected is displayed with “
YES
” or “
NO
” (indicating
whether it is currently password protected).
6. Press the
◄
or
►
button to change the “
YES
” or “
NO
”.
7. Press the
MENU
button to move to the next feature. Or press the
◄
or
►
button to skip to the next feature.
7.3 Entering the Password
When setting up a function, you may be prompted to enter the password.
1. Press the
◄
or
►
button until the first number in the password is displayed,
then press the
MENU
button.
2. Repeat for each digit in the password.
3. Press the
MENU
button again after entering the last digit.
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1
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