Thermo King 098916, Maintenance Manual

Page: 144 / 196

Refrigeration Maintenance
143
Condenser Coil Replacement
Condenser Coil Removal
Remove the condenser coil by performing the
following steps:
1. Recover the refrigerant charge from the unit.
2. Remove the condenser fan grille, condenser
fan blade and condenser fan shroud.
3. Remove condenser coil support brackets from
coil.
4. Unsolder coil inlet and liquid line
connections.
5. Support the coil and unbolt the condenser coil
mounting brackets. Slide coil from the unit.
Condenser Coil Installation
Install condenser coil by performing the following
steps:
1. Clean the tubes for soldering.
2. Slide the coil into the unit and install the bolts
in the mounting brackets.
3. Solder the inlet line and liquid line
connections.
NOTE: It’s strongly recommended that dry
nitrogen be used to purge the system during
any solder operations (see “Using
Pressurized Nitrogen” in this chapter).
4. Perform a controller pretrip test to verify
system operation. Check compressor oil level.
5. Pressurize the system and test for leaks (see
“Refrigerant Leak Test Procedure” in this
chapter). Repair leak if required.
6. Recover the leak test gas if no leaks were
found.
7. Evacuate the system (see “Evacuation and
Cleanup of the Refrigeration System” in this
chapter).
8. Replace the condenser coil support brackets,
condenser fan shroud and condenser fan grille.
9. Recharge the unit with R-404A (see
“Charging the System with Refrigerant” in
this chapter).