TK 57196-11-IS Rev. A ©2023 Trane Technologies 1
Kit 401680
A Merv-7 filter is required to ensure proper efficacy of the air purification device over the course
of the product life. Please contact your Thermo King representative to identify the applicable
part number for your application.
Tools Required:
3/8” and 7/16” sockets, 3” extension and ratchet
7/16” open ended wrench
Laptop with CANDiag kit (Flash load firmware version 4.02.06 or later into both main modules is required.)
Installation Overview
It is recommended the entire installation instructions be reviewed prior to beginning the
installation.
NNoottee:: A short video showing the installation process can also be found hheerree.
AAPPSS IInnssttaallllaattiioonn – APS assembly installs directly onto the TK HVAC evaporator using the
existing hardware.
UUnniitt MMooddiiffiiccaattiioonnss – The two existing air filter clips will be removed from the front of the
evaporator and not reused. The return air temperature sensor will be relocated to the APS
frame. The existing sensor mounting bracket may need be bent slightly to allow for APS
harness clearance.
EElleeccttrriiccaall CCoonnnneeccttiioonnss – APS interface harness connects to the IntelligAIRE III controllers and
to a bus battery positive (+24VDC) and chassis ground (-) source.
SSyysstteemm PPrrooggrraammmmiinngg – The IntelligAIRE III controllers will need to be programmed to operate
the system.
Installation Instructions
Air Purification Solution (APS) for TE18 Series
Bus Units
2©2023 Trane Technologies TK 57196-11-IS Rev. A
Installation Procedures
Step 1 – Bus HVAC Component Removal
IImmppoorrttaanntt:: Disconnect power to the bus HVAC unit before proceeding.
1. Access evaporator via bus interior return air inlet grille. Remove filter from coil face (if
applicable).
2. Remove and discard the (2) filter clips.
NNoottee:: Carefully drill out only the rivet heads securing the filter clips. Drilling through the rivet
hole could damage the evaporator coil.
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3. Remove and retain only the (10) 1/4”–20 hardware shown.
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Continue to Step 2 – APS Installation
TK 57196-11-IS Rev. A ©2023 Trane Technologies 3
Step 2 – APS Installation
1. Remove (2) 1/4”-20 hardware securing control panel to APS frame. Place APS assembly onto
front of evaporator coil with harnesses facing up and control board facing out.
a. Align APS mounting holes with those on coil.
b. Reinstall (10) 1/4”–20 hardware and tighten to 6 ft-lbs (8.2 Nm).
c. Reinstall (2) 1/4”–20 hardware to secure control panel to APS frame. Tighten to 6 ft-lbs (8.2
Nm)
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NNoottee:: If the APS frame is not aligning with unit mounting holes, loosen the corner bolts of
the frame, align hardware, and retorque all hardware that was removed or loosened.
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Continue to Step 3 – Electrical Connections
4©2023 Trane Technologies TK 57196-11-IS Rev. A
Step 3 – APS Electrical Connections
1. RReellooccaattee SSeennssoorr::
a. Remove sensor from bracket and insert it into grommet on APS bracket as shown.
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NNoottee:: Early versions of the air temperature sensor bracket may need to be bent slightly if it
interferes with APS harness. A later version with adequate spacing is shown below.
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2. 44––PPiinn IInntteerrccoonnnneecctt HHaarrnneessss:
a. Locate 4–pin interconnect harness secured to APS harness.
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b. Unplug 4-pin connector from roadside controller and plug into mating connector on APS
interconnect harness.
c. Plug other end of interconnect harness into unit controller.
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6©2023 Trane Technologies TK 57196-11-IS Rev. A
3. 1188––PPiinn IInntteerrccoonnnneecctt HHaarrnneessss:
a. Locate 18–pin interconnect harness secured to APS harness.
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b. Unplug 18–pin connector from curbside controller and plug into mating connector on APS
interconnect harness.
c. Plug the other end of interconnect harness into unit.
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TK 57196-11-IS Rev. A ©2023 Trane Technologies 7
4. CCSSEENN WWiirree CCoonnnneeccttiioonn:
a. Locate single CCSSEENN wire with terminal pin on APS harness.
b. Unplug 24-pin connector from curbside controller.
c. Insert terminal pin into cavity 1144 of 24–pin connector until it locks in place.
d. Plug connector back into controller securely.
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8©2023 Trane Technologies TK 57196-11-IS Rev. A
5. AAPPSS GGrroouunndd WWiirree ((CCHH)) CCoonnnneeccttiioonn:
a. Attach CCHH wire with ring terminal to unit ground stud and torque nut to 48-53 in.- lb.
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6. AAPPSS PPoowweerr WWiirree ((22GG)) CCoonnnneeccttiioonn:
a. Attach fused 22GG wire onto power stud and torque nut to 31-35 in.-lb.
b. Close cover securely.
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7. Remove small bag of band wraps and bundle all wires away from the coil.
a. Install push in anchor band wraps that were left open for install purposes or were
removed to gain access to mounting hardware.
Continue to Step 4 – Setup Procedures
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Step 4 – Setup Procedures
NNoottee:: See the IntelligAIRE III Diagnostic Manual TTKK 5544665500 for detailed information on flash
loading and connecting using the CANDiag software.
1. Reconnect power to the bus HVAC.
2. Connect to TE18 diagnostic plug and open up CANDiag version 1.13.5 or higher.
3. Confirm unit has firmware version 4.02.06 or higher
4. Open Main Module ID 0
5. Navigate to the Setup Parameter tab. Read Data.
• Check ‘APS Fail Indicator’
This is an optional selection:
–If box is selected: the AC Fail Indicator lamp on the control panel will illuminate when
alarm code 084 is detected. This is the default setting.
–If box IS NOT selected: The AC Fail Indicator lamp on the control panel will not
illuminate when alarm code 084 is detected.
• Check ‘Cont Evap Blower’
• Change ‘Evap Max Speed’ and ‘Evap Max Speed H’ to ‘77’
• Change ‘Evap Med Speed’ to ‘43’
• Change ‘Evap Min Speed’ to ‘43’
• Send data
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10 ©2023 Trane Technologies TK 57196-11-IS Rev. A
6. Open Main Module ID 2
7. Navigate to the Setup Parameter tab. Read Data.
• Change ‘APS Panel Count’ to ‘5’
• Send Data
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TK 57196-11-IS Rev. A ©2023 Trane Technologies 11
APS System Operation
When the bus is started and the RUN signal becomes active, the air purification panels will
energize and the IntelligAIRE II or III controller (depending on unit) will wake up.
Figure 1. APS panels shown energized.
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The evaporator blowers will start automatically and operate in low speed unless being
commanded to a higher speed by the HVAC.
The air purification panels may be temporarily disabled (for example during service procedures,
flash loading, etc.) by using the service ON / OFF switch in the return air section.
Figure 2. APS Service Switch shown.
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IImmppoorrttaanntt:: The screen mesh of the air purification system must only be cleaned with a low
power vacuum equipped with a soft bristle dust brush attachment. Do not use liquids,
chemicals, cleaners, cleaning agents, compressed air, water, or a high power vacuum
to clean the mesh or damage may occur.
12 ©2023 Trane Technologies TK 57196-11-IS Rev. A
APS Diagnostics Procedures
NNoottee:: Your screen may be slightly different but the information displayed will be the same.
• The IntelligAIRE III controller monitors voltage and current to determine total power drawn
by the air purification system.
• If the air purification system power drops more than the threshold amount below the
expected power, an alarm code 084 is generated.
• This alarm code is also broadcast through the DM1 messaging on the vehicle J1939 network
and will light the AC Fail indicator at the driver panel if the AC Fail option is selected.
Figure 3. Alarm 084 – Air Purification System fault shown.
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Figure 4. TE18 Wiring Diagrams
RELEASED 24/Aug/2022 18:43:35 GMT
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