Electrical Terminals; All-Aluminum Condenser Coils; Oil Filter Housing Cover Plate; Fitting A New Oil Filter Element – Reassembly - Daikin Pathfinder AWV Series Installation, Operation And Maintenance Manual

Figure 76: Oil Filter Housing Cover Plate
Oil filter assembly components are:
• Oil Filter – 250mm
• Oil Filter Housing Cover
• O-Ring – 89.5x3
• O-Ring – 76.1x3.4
• (6) M8 Bolts
Disassembly Procedure
1. Unscrew and remove two hex head side cover bolts 180°
apart. Insert M8 guide studs into the vacant holes.
2. Remove remaining bolts and oil filter housing cover.
3. Pull the oil filter off of the spigot and withdraw the oil filter
from the housing and clean the housing.
4. Clean oil filter housing cover plate and all other
components.
Fitting a New Oil Filter Element – Reassembly
Before reassembly, remove any paint from joint faces. Inspect
parts individually for damage and ensure they are completely
clean before laying them out on a clean surface in a logical
order ready for reassembly.
Use fresh refrigerant oil to lubricate parts during reassembly.
1. Install new O-rings on the oil filter housing cover.
2. Insert new oil filter into the housing, ensuring the filter
sits tightly on the sealing spigot.
3. Replace the oil filter housing cover.
IOM 1242-2 • PATHFINDER MODEL AWV CHILLERS
®
4. Evacuate air and non-condensibles before valving
refrigerant back into the compressor.

Electrical Terminals

Electric equipment can cause electric shock which will cause
severe personal injury or death. Turn off, lock out and tag all
power before continuing with following service. Panels can
have more than one power source.
Periodically check electrical terminals for tightness and tighten
as required. Always use a backup wrench when tightening
electrical terminals.

All-Aluminum Condenser Coils

The condenser coils are an all-aluminum design including the
connections, microchannels, fins (an oven brazing process
brazes the fins to the microchannel flat tube), and headers
(see "Microchannel Coil Cross
the possibility of corrosion normally found between dissimilar
metals of standard coils.
During the condensing process, refrigerant in the coil passes
through the microchannel flat tubes, resulting in higher
efficiency heat transfer from the refrigerant to the airstream. In
the unlikely occurence of a coil leak, contact Daikin Applied to
receive a replacement coil module.
Figure 77: Microchannel Coil Cross Section
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