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Refrigeration Maintenance
189
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).
Содержание 098203
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Страница 258: ...256 Wiring Diagram Page 1 of 2 RELEASED 19 Sep 2013...
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