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Installer's Guide
CAUTION
!
SHARP EDGE HAZARD!
Failure to follow this caution could result in property
damage or personal injury.
Be careful of sharp edges on equipment or any cuts
made on sheet metal while installing or servicing.
CAUTION
!
COIL IS PRESSURIZED!
Coil is pressurized with approximately 8-12 psi dry air
and factory checked for leaks. Carefully release the
pressure by removing the rubber plug on the liquid line.
If no pressure is released, check for leaks.
Important: Installation of this unit shall be made in accordance
with the National Electric Code, NFPA No. 90A and 90B, and any
other local codes or utilities requirements.
Important: Cased coils do not require repositioning of the
refrigerant leak detection sensor for upflow or downflow
installations. Horizontal applications require sensor repositioning.
See conversion instructions section for details.
Note: This unit is a PARTIAL UNIT AIR CONDITIONER,
complying with PARTIAL UNIT requirements of Standard UL
60335-2-40/CSA 22.2 NO. 60335-2-40, and must only be
connected to other units that have been confirmed as complying
to corresponding PARTIAL UNIT requirements of this Standard.
Note: There is no declared maximum altitude for operating the
appliance.
Note: Charging of the refrigerating system shall be according to
the instructions provided by the manufacturer of the outdoor unit.
Note: Unit not to be used with oil drum type furnaces.
Note: Both the drain pans and the refrigerant detection sensor
installed on this unit are designed to be heat resistant to
temperatures produced by all Trane residential and American
Standard furnaces.
TABLE OF CONTENTS
General .................................................................................2
Application Information ......................................................2
Information on Servicing ....................................................2
Refrigerant Leak Detection System ...................................4
Recommendation ................................................................6
Furnace in Upflow Position ................................................6
Furnace in Downflow Position ...........................................6
Furnace in Horizontal Right Position ................................7
Furnace in Horizontal Left Position ...................................8
Maximum And Minimum Airflow Settings ........................9
Installing / Brazing Refrigerant Lines ..............................10
Pressure Test ....................................................................12
Vacuum Test ......................................................................12
Condensate Drain Piping ..................................................12
Cleaning the Coil ...............................................................12
Wiring - Communicating Systems .................................13
AHC Board Connections ...................................................13
Control Box Relocation (Optional) ...................................13
Flash Codes ......................................................................13
Wiring .................................................................................14
Field Wiring Diagrams ......................................................15
Outline Drawing .................................................................20
Troubleshooting Indoor TXV / Cooling Mode .................21
Checkout Procedures .......................................................22
2
A. GENERAL:
These coils are designed for use in combination with a heat
pump or cooling outdoor section using R-454B REFRIGERANT.
The 5TXC equipment has been evaluated in accordance with
the Code of Federal Regulations, Chapter XX, Part 3280 or the
equivalent. "Suitable for Mobile Home use" The height of the
Furnace, Coil and discharge duct work must be 7 ft. or less.
Inspect the coil for shipping damage. Notify the transportation
company immediately if the coil is damaged.
B. APPLICATION INFORMATION:
1.
FURNACE AND COIL
The coil MUST BE installed downstream (in the outlet air)
of the furnace.
2.
INDOOR UNIT AIRFLOW
Indoor unit must provide the required airflow for the heat
pump or cooling combinations approved for these coils.
Note: The manufacturer recommends installing ONLY A.H.R.I
approved, matched indoor and outdoor systems. Some of the
benefits of installing approved matched indoor and outdoor
split systems are maximum efficiency, optimum performance,
and the best overall system reliability.
IMPORTANT: Review your installation requirements. Check
the table on the outline drawings and note all dimensions
for your coil before beginning the installation.
Figure 1
C. INFORMATION ON SERVICING:
All replacement parts shall be in accordance with the
manufacturer's specifications.
Prior to Beginning Work
Prior to beginning work on systems containing flammable
refrigerants, safety checks are necessary to ensure that the
risk of ignition is minimized. For repair to the refrigerating
system, the following shall be completed prior to conducting
work on the system:
•
Work shall be undertaken under a controlled procedure
to minimize the risk of a flammable gas or vapor being
present while the work is being performed.
•
All maintenance staff and others working in the local area
shall be instructed on the nature of work being carried out.
Work in confined spaces shall be avoided.
18-AD47D1-1B-EN
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Troubleshooting
