BLUERIDGE BMY9HH21CC S4 Ceiling Cassette Installation Guide
- September 30, 2024
- BLUERIDGE
Table of Contents
BLUERIDGE BMY9HH21CC S4 Ceiling Cassette
FAQs
- Q: What are the recommended clearances for the Ceiling Cassette installation?
- A: Maintain at least 39.4 inches of clearance on all four sides of the indoor unit. It is advised to install the unit 8-10 feet above the floor.
- Q: Can the Ceiling Cassette units be installed in pitched ceilings?
- A: No, these units are not suitable for pitched ceilings. They must be installed in drop ceilings or recessed into flat ceilings with specific joist spacing.
PREP FOR INSTALL
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Your indoor air handler has been pre-pressurized with nitrogen.
- Locate the copper tubes on the side of the indoor unit.
- Loosen the cap on either of the 2 copper tubes.
- You should hear a hissing noise, which is the release of this harmless gas.
- Allow all of the nitrogen to escape the line.
- Put the the cap back on securely, and repeat this process for the other connection.
- If you don’t hear a hissing noise when loosening the cap, please call us at 800.865.5931.
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These units are designed to be installed into drop ceilings or recessed into flat ceilings with joists that are 24 inches in the center (22.5 inches apart).
- Maintain at least 39.4 inches of clearance on all four sides of the indoor unit.
- It is recommended to install the indoor unit 8-10 feet above the floor.
- You must install this flat. They aren’t suitable for pitched ceilings. You must have accessible space above the air handler to install these units.
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Choose the location to place the outdoor unit.
- If used for heating, it is recommended to raise the outdoor unit to allow for proper drainage and keep it clear of expected snowfall (if applicable).
- Maintain listed clearances
INDOOR UNIT
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Carefully inspect the indoor unit. Make sure that no accessories are in the blower compartment.
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Key measurements.
- Note the spacing between where the threaded rod will connect to the indoor unit.
- You will need to mirror this spacing when suspending the threaded rod.
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Prepare the hanging support structure.
- Above where the indoor unit will be installed, you need to use uni strut or 2×4 lumber to create a solid, secure, level structure for the threaded rod to install into.
- Not all hanging hardware comes from the system.
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Measure the distance from the support structure to the ceiling and add 12 inches.
- Select 3/8 inch threaded rods that match the last measurement x4. This will allow for flexibility during the installation. It is common to cut the threaded rod to size using a hacksaw or sawzall.
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Hang the indoor unit. This is a 2 person job.
- The bottom of the indoor unit needs to be installed level, with a 0.9 inch gap between the bottom of the unit and the interior of the ceiling.
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Hang the indoor unit.
- Attach the hanger brackets to the threaded rods. Be sure to fix it securely by using a nut and washer from the upper and lower sides of the hanger bracket.
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Adjust the unit to the right position for installation.
- Verify you have the 0.9 inches from the bottom of the indoor unit to the interior of the ceiling.
- Ensure that the unit is level. Failure to do so can cause operational issues and condensation leaks.
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Drill a hole through the wall, maintaining a slight pitch downwards to aid outside drainage.
- Drilling a vertical hole and feeding the copper tubing, along with the 14/4 stranded wire, through the soffit is also a common installation practice for these models.
- The hole must be free of electrical wiring, plumbing, or other obstructions.
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Insert a wall sleeve through the wall with the flange facing the exterior. A wall sleeve isn’t typically needed if drilling a vertical hole into a soffit.
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Bundle the copper tubes and connection wires together, keeping the drain line on the bottom. Feed the bundle through the wall to the outside.
- Leave enough copper tubing and 14/4 stranded wire to easily connect to the indoor unit.
- Use PVC electrical tape to secure the bundle. Do so every 5 feet.
- The minimum copper tubing is 10 feet. If that length is longer than needed, reposition the outdoor unit or horizontally coil the refrigerant lines after connection.
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Connect the copper tubes to the indoor unit.
- Remove caps from the line set connections on the air handler.
- Apply a couple of drops of Nylog sealant to the male side of the flare connection.
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Secure the copper tubing to the indoor unit.
- Use a standard wrench and a torque wrench to tighten to the specified foot-pounds of torque.
- Do not over-tighten
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Bend the copper tubes on the exterior of the wall towards the outdoor unit.
- Do not kink the line set.
- With lines larger than 3/8 inch OD, the use of a tubing bender is recommended.
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Expose the wiring connections.
- Remove the two screws holding the board cover. Then remove the cover.
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Key wire locations on the board.
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Feed the 14/4 stranded wire through the opening in the cabinet.
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Make the wire connections. You must use 14/4 stranded wire.
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Detach the intake grille. Slide the 2 hooks toward the middle of the grille.
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Install the decoration panel.
- Align the indicate
- An on the decoration panel to indicate A on the unit.
- Attach the decoration panel to the unit with the supplied screws as shown.
- Decoration panel
- Screws (M5) (supplied with the panel)
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Verify that there is no space between the unit body and the decoration panel. Failure to do so can lead to condensation issues.
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Mount the intake grille.
- Ensure that the grille is properly seated in the groove of the panel.
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Connect the 2 wires of the decoration panel to the main board of the unit. Leave the third wire detached.
- Reconnect the board cover.
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Close the intake grille, and close the 2 grille hooks.
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Connect the condensate drain line.
- Use 3/4 inch PVC Use the included short drain adapter. discard the long adapter.
- These models have a factory-installed condensate pump with a float switch designed to pump the water up to 18 inches vertically.
- After the up to 18 inches of rise, you must gravity drain. A minimum downward pitch of 1/4 inch per foot or greater is recommended.
- Seat the adapter as far on the drain connection as you can. Use the included metal clamp to secure the adapter.
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Connect the 3/4 inch PVC.
- Use PVC cement to attach the 3/4 inch PVC to the adapter and to assemble the drain.
- ELECTRICAL
- Any high-voltage electrical installation should be performed by an electrician or contractor.
- Make sure the electricity is off.
- Follow all local and national electrical codes.
- Always verify line and load lug locations on the disconnect prior to wiring.
- Wiring shown is based on load, line, line, load on the disconnect box.
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Using the correct size breaker and wire, run the power to the disconnect box mounted beside the outside unit.
- Connect the indoor unit to the outdoor unit.
- Connect the outdoor unit to the disconnect box with the electrical whip.
- See the next page for wiring diagrams
FOR 208/240 VOLT SYSTEM
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Connect the indoor unit to the outdoor unit.
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Connect the outdoor unit to the disconnect box.
- The wiring shown is based on load, line, line, load on the disconnect box.
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Remove caps from the outdoor unit.
- Use Nylog sealant, a wrench, and a torque wrench to connect the line sets to the outdoor unit.
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Remove the cap from the service port on the suction line and perform a pressure test to 300 – 350 psi from the outdoor unit. REFRIGERANT | OUTDOOR UNIT
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After creating the vacuum, close the valves to the vacuum pump.
- Add refrigerant if the line set used is more than 25 feet in length.
- Add 0.16 oz per foot past 25 if using 1/4 inch OD liquid lines (In 0.75, 1.0, and 1.5 ton models)
- Add 0.32 oz per foot past 25 if using 3/8 inch OD liquid lines (In 2.0 ton models)
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Open horizontal-facing valve caps.
- Use a 5mm allen wrench (hex key) to fully open the lower and then upper valve, releasing the refrigerant into the system.
- Replace caps over open valves.
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Power up and start the system.
- Please call 1.800.865.5931 if you have any questions before or during the installation process of your Blueridge Mini-Split System.
Because of the Blueridge promise for continuous product innovation and improvement, some specifications and instructions may change without notification. S4 Ceiling Cassette Mini Split for Heating & Cooling.