Remove Chiller Vents and Thumb Nuts
- Remove both side chiller vent panels.
- Unscrew all 6 thumb nuts securing the rear panel:
- 3 on the left vent
- 3 on the right vent
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Remove Rear Cover
- Grab the rear cover by the vent openings and slowly pull and wiggle the rear cover free.
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Disconnect Water Filter Assembly
- Wrap the hex bolt driver in a towel or rag to protect the plastic nut from damage.
- Locate the notched corner of the plastic nut securing the water filter housing and align the wrapped hex bolt driver with the notch.
- Loosen the Plastic Nut by using a rubber mallet or hammer and GENTLY TAP the end of the wrapped driver
- 🚨 Apply soft, controlled strikes — go slow and steady to avoid cracking the plastic
- Once the nut is loose enough, finish unthreading it by hand.
- Use one hand to support the bottom of the water filter housing as the nut is removed.
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Disconnect Electrical Components
- Disconnect all electrical components by unscrewing the threads and pulling.
- The LED wire should be moved to the back of the chiller and set aside.
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Remove E-Box Mounting Nuts
- Cut 2 zip ties securing the power cord to the frame near the electrical box.
- Using an 8mm hex driver, remove the 4 mounting nuts securing the e-box to the tub.
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Move E-box Behind TH-1 Manifold
- After removing the 4 mounting nuts, gently lower the e-box from its mounted position.
- Pull the TH-1 manifold forward slightly to create room behind it.
- Carefully move the e-box behind the TH-1 manifold.
- Once positioned, allow the e-box to rest securely behind the TH-1 manifold against the tub basin.
🚨Make sure the UI ribbon cable and other wires do not snag or catch on any components. |
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Disconnect Ribbon Cable From UI
- Locate the ribbon cable connected to the back of the UI.
- Push the wing tabs on the ribbon cable connector apart—one up and one down—to release the cable.
- Gently remove the ribbon cable from the UI.
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Remove E-Box
- Cut zip ties that are securing the electrical box to the frame of the tub if needed.
- Move the electrical box back to the top of the chiller cabinet on the mounting nuts.
- Push the TH-1 manifold back until it is against the basin of the tub.
- Tilt the e-box towards you, slowly and carefully slide the e-box out of the chiller cabinet between the top of the fan and the bottom of the tub.
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Insert New E-box & Maneuver To Behind The Water Thermistor
- Slowly and carefully slide the E-box between the top of the fan and the bottom of the tub
- Place E-box on mounting screws
- Slide TH-1 manifold forward up against the condenser fan
- Slowly and carefully slide the E-box behind the TH-1 manifold up against the tub basin.
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Connect Ribbon Cable to UI
- Retrieve the UI ribbon cable from the electrical box.
- Position the ribbon cable so that the red stripe is facing down.
- Insert the cable into the connector on the back of the UI.
- Once the cable is fully inserted, secure it in place by closing the wing tabs around the ribbon cable.
- Double-check that the connection is snug and properly aligned.
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Mount & Secure E-box
- Carefully lift and maneuver the e-box back onto the mounting bolts at the top of the chiller cabinet.
- Align the e-box with the bolt pattern on the frame and gently seat it into position.
- Hand-thread all four 10mm mounting nuts onto the bolts to hold the e-box in place.
- Once all nuts are hand-tightened, use a hex driver to securely tighten each one.
- Confirm the e-box is firmly mounted and does not move or wobble
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Zip Tie E-box Power Cord
- Zip tie the power cord near the e-box where the original ties were cut.
- If you previously cut zip ties on the opposite side of the chiller, route the power cord back along the same path.
- Run the power cord over the top of the fan to keep it clear of all moving parts and components.
- Use additional zip ties as needed to ensure the cord is secure and snug along the frame.
- Confirm that the cord is fully supported and not in contact with any sharp edges or moving parts.
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Reconnect Electrical Components
- Plug in all electrical connectors to their labeled receptacles.
- Identify each component by the labels on the wires
- Ensure all components are secured screwed and pushed in.
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Reconnect Water Filter Assembly
- Lift the water filter housing and align it with the threaded post on the tub.
- 🚨 Ensure the two nodes on top of water filter housing line of with two cutouts where the water filter housing mounts to the tub.
- Begin threading the plastic nut onto the post by hand, ensuring it is not cross-threaded.
- Once the nut is hand-tight, wrap a towel or rag around a hex bolt driver to protect the plastic.
- Place the wrapped driver against one of the nut’s notches and gently tap with a rubber mallet to snug it into place.
- Apply light, controlled taps until the nut is fully tightened and the water filter housing is secure.
- Ensure the housing is firmly seated and does not move or shift when lightly pushed.
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Tighten Water Filter Housing Unions
- Locate the TH-1 manifold union on the right side of the water filter housing.
- Hand-tighten the union to ensure a secure, leak-free connection.
- Locate the Flow Meter manifold union on the back side of the water filter housing.
- Hand-tighten this union as well until it is snug.
⚠️ Do not use tools to tighten—hand-tightening is sufficient and helps prevent damage to the fittings. |
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Test for Leaks
⚠️ Warning: The chiller fan is exposed during testing. Keep hands, tools, and loose items away from the fan to avoid injury or equipment damage.
- Plug in the Plunge and press the “Reset” button on the GFCI plug to power it on.
- Set temperature to 50 degrees so pump powers on 100%.
- Allow the Plunge to run and observe the chiller plumbing union connections.
- Carefully inspect all union fittings for any signs of leaking while the system is running.
- If a leak is found, pause the system and recheck that the union is properly seated and hand-tightened.
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Power Down Plunge
- Pause the chiller by pressing the pause button on the UI.
- ⚠️ Powering down the Plunge while it's in a cooling cycle can damage the chiller.
- Once the chiller is in idle mode press the test button on the GFCI outlet to power down the Plunge.
- Unplug the GFCI outlet from the outlet.
🚨 Important: Do not power down the Plunge before pausing the chiller. Powering down the Plunge while it is in a cooling cycle can damage the chiller. |
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Install Rear Cover & Chiller Vents
- Slide the rear cover into place.
- Install all 6 thumb nuts (3 per side).
- Reinstall left and right vent panels.
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