Therma-Star 4042265 Oasis105 Supply and Return Duct Kit User Manual
- June 12, 2024
- Therma-Star
Table of Contents
Therma-Star 4042265 Oasis105 Supply and Return Duct Kit
Product Information
- Product Name: Duct Kit
- Part Number: 4042265
- Parts Included:
- Return Duct Plenum
- Supply Duct Plenum
- Magnetic Filter Door
- Packed Fasteners (x4)
- Tools Required:
- Portable Drill
- T25 Torx Driver
- 5/16 Hex Driver
Product Usage Instructions
Before Installation
CAUTION! Before installing the duct kit, disconnect the dehumidifier from
electrical power and disconnect any previously installed duct work.
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Step 1: Remove Filter Remove the filter by lifting it up and pulling it over the lip of the plastic base. Set the filter aside.
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Step 2: Loosen Screws on Top and Right Panel Using the T25 Torx Driver, unthread the #10-24 screws on the Top Panel (x2) halfway and on the Right Panel (x2) fully. Set aside the two screws from the right panel
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Step 3: Install Return Duct Plenum Slot the return duct plenum onto the dehumidifier by inserting the half-threaded screws into the keyed grooves (x2). Ensure the screws are fully pushed into the grooves.
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Step 4: Tighten Screws on Top and Right Panel Using the T25 Torx Driver, tighten the #10-24 screws on the Top Panel (x2) and Right Panel (x2) to securely fasten them.
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Step 5: Drill Fasteners on Return Duct Plenum Using the 5/16 Hex Driver, drill the packed fasteners (x2) through the bottom tabs of the return duct plenum into the plastic base. Ensure the screws are securely fastened. Note: Packed fasteners are self-drilling, so no pilot holes are needed.
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Step 6: Install Filter Slide the filter into the left slot of the return duct plenum. Ensure that the airflow arrow on the side of the filter points the dehumidifier. Make sure the filter is fully inserted into the slot.
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Step 7: Install Magnetic Filter Door
Slot the magnetic filter door into the gap between the filter and front panel. Ensure that the larger tab of the filter door is located on top. Also, ensure a seal between the filter door, return duct plenum, and front panel. -
Step 8: Loosen Screws on Top, Rear, and Left Panel Using the T25 Torx Driver, unthread the #10-24 screws on the Top Panel (x1), Rear Panel (x1), and Left Panel (x2) halfway.
-
Step 9: Install Supply Duct Plenum Slot the supply duct plenum onto the dehumidifier by inserting the half-threaded screws into the keyed grooves (x4). Ensure the screws are fully pushed into the grooves
-
Step 10: Tighten Screws on Top, Rear, and Left Panel Using the T25 Torx Driver, tighten the #10-24 screws on the Top Panel (x1), Rear Panel (x1), and Left Panel (x2) to securely fasten them.
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Step 11: Drill Fasteners on Supply Duct Plenum Using the 5/16 Hex Driver, drill the packed fasteners (x2) through the bottom holes of the supply duct plenum into the plastic base. Ensure the screws are securely fastened. Note: Packedfasteners are self-drilling, so no pilot holes are needed.
Parts Included
- Return Duct Plenum
- Supply Duct Plenum
- Magnetic Filter Door
- Packed Fasteners (x4)
Tools Required
- Portable Drill
- T25 Torx Driver
- 5/16″ Hex Driver
CAUTION! Before installing duct kit, disconnect dehumidifier from
electrical power and disconnect duct work if previously installed.
-
Step 1: Remove filter by lifting up and pulling over the lip of the plastic base. Set filter aside.
-
Step 2: Using T25 Torx Driver, unthread #10-24 screws on the Top Panel (x2) halfway and on the Right Panel (x2) fully. Set the two screws from the right panel aside.
-
Step 3: Install return duct plenum on the dehumidifier by slotting half-threaded screws in the keyed grooves (x2). Ensure screws are pushed all the way into the grooves.
-
Step 4: Using T25 Torx Driver, tighten #10-24 screws on the top panel (x2) and right panel (x2). Ensure screws are securely fastened.
-
Step 5: Locate packed fasteners. Using 5/16” Hex Driver, drill fasteners (x2) through bottom tabs of the return duct plenum into plastic base. Ensure screws are securely fastened.
Note : Packed fasteners are self-drilling. No need for pilot holes. -
Step 6: Install Filter by sliding into left slot of the return duct plenum. Ensure airflow arrow on side of the filter points towards the dehumidifier. Ensure filter is fully inserted into the slot.
-
Step 7: Install magnetic filter door by slotting into the gap between filter and front panel. Ensure larger tab of filter door is located on top. Ensure seal between filter door, return duct plenum, and front panel.
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Step 8: Using T25 Torx Driver, unthread #10-24 screws on the top panel (x1), rear panel (x1), and left panel (x2) halfway.
-
Step 9: Install supply duct plenum on the dehumidifier by slotting half-threaded screws in the keyed grooves (x4). Ensure screws are pushed all the way into the grooves.
-
Step 10: Using T25 Torx Driver, tighten #10-24 screws on the top panel (x1), rear panel (x1), and left panel (x2). Ensure screws are securely fastened.
-
Step 11 : Locate packed fasteners. Using 5/16” Hex Driver, drill Fasteners (x2) through bottom holes of the supply duct plenum into plastic base. Ensure screws are securely fastened.
Note : Packed fasteners are self-drilling. No need for pilot holes.
4201 Lien Rd Madison, WI 53704 • TOLL-FREE 1-800-533-7533 • www.thermastor.com • [email protected]