Rinnai CJ Series Split Type Wall Mounted Air Conditioner Installation Manual

Product Overview

Models:

• System: HSNCJ25B, HSNCJ35B, HSNCJ50B, HSNCJ70B
• Indoor: HINCJ25B, HINCJ35B, HINCJ50B, HINCJ70B
• Outdoor: HONCJ25B, HONCJ35B, HONCJ50B, HONCJ70B

Refrigerant: R32

Warnings and Important Information

Safety Precautions

DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in personal injury or death.

WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in personal injury or death.

CAUTION: Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury or damage to the appliance. It may also be used to alert against unsafe practices.

Regulatory Compliance

This appliance must be installed in accordance with:

• Manufacturer's Installation Instructions
• Current AS/NZS 3000, AS/NZS 5141
• Local Regulations and Municipal Building Codes including local OH&S requirements

This appliance must be installed, maintained, and removed ONLY by an Authorised Person.

For continued safety, installation and maintenance must follow the manufacturer's instructions.

This appliance uses R32 refrigerant.

Warning: This appliance is heavy; use two people or a mechanical lifting device. Improper lifting may result in serious injury.

Warning: Take care when opening or unpacking this appliance. Failure to do so may result in serious injury or product failure.

DO NOT modify the electrical wiring. If control power wiring is damaged, it must be replaced by an authorised person to prevent electric shock, fire, serious injury, or product failure.

DO NOT install the air conditioner on an unstable or non-level surface, or where there is a danger of it falling. This may result in death, serious injury, or product failure.

DO NOT install the outdoor unit where noise may cause nuisance.

DO NOT install the outdoor unit where it will be exposed to sea wind (salt spray), as this will reduce durability.

Mandatory Inspection Prior to Installation

IMPORTANT:

Immediately report any damage or discrepancies to the Supplier. Inspect the exterior for evidence of rough handling during shipment. Ensure the appliance is labelled correctly for the gas and electrical supply.

For safety and warranty purposes, appliances that may be damaged or incorrect MUST NOT be installed or operated. Installation of damaged or incorrect appliances may contravene local government regulations. Rinnai disclaims any liability or responsibility for the installation or operation of damaged or incorrect appliances.

Installation

Installation General

Contents Checklist

• Indoor unit x1
• Indoor unit support bracket x1
• Brass nut (small) x2
• Operation manual x1
• Remote controller x1
• Outdoor unit x1
• Brass nut (large) x2
• Installation manual x1
• Remote control wall bracket x1
• Rubber vibration damper x4
• Tape x1
• Energy label x1
• AAA battery x2
• Drain pipe x1
• Putty x1

Appliance Components

Indoor Unit Components:

1. Indoor unit air inlet.
2. Filter (located behind front access panel).
3. Manual ON/OFF (Auto) override button (located behind front access panel).
4. Indoor unit air outlet (with louvres for setting air flow direction).
5. Remote control.
6. Signal receiver window and temperature display (built into the front access panel).
7. Refrigerant pipes, electrical cable(s) (covered with binding tape).
8. Condensate drain hose (covered with binding tape).
9. Refrigerant entry (for service and installer use only).

Outdoor Unit Components:

10. Outdoor unit air inlet (on rear & left side of unit).
11. Outdoor unit air discharge and protective grille (on front of unit).

Diagram shows numbered components of the indoor and outdoor units.

Weights & Dimensions

Diagrams show dimensions A, B, C for indoor units and D, E, F, G, H, I for outdoor units, with corresponding measurements.

Location

Indoor Unit Location Requirements

• Locate away from heat or steam.
• Ensure accessibility for service and replacement.
• Ensure condensate can be drained away.
• Select a location for secure mounting.
• Maintain specified clearances.

Diagram illustrates minimum clearance distances around the indoor unit: 150mm (top, sides), 1000mm (front), 150mm (bottom).

Outdoor Unit Location Requirements

• Minimise exposure to direct sunlight and strong wind.
• Ensure secure mounting.
• Select a location where noise and airflow will not cause nuisance.
• Ensure no obstructions in the airflow path.
• Ensure accessibility for service and replacement.
• Keep animals and plants away from the air discharge.
• Maintain specified clearances.

Diagram illustrates minimum clearance distances around the outdoor unit: 100mm (sides), 300mm (rear), 600mm (front), 1000mm (top).

Pipe Length & Elevation Limits

The outdoor unit is supplied already charged for interconnecting pipe lengths of 2 metres up to 10 metres.

IMPORTANT:

Removal of refrigerant is necessary if pipe length is less than 2 metres. Additional refrigerant will be required for pipe lengths in excess of 10 metres. Removal or addition of refrigerant must be by best practice.

Diagrams show the relationship between the indoor and outdoor units, indicating pipe length (X) and height difference (Y).

Installation Procedure

Indoor Unit Installation

Wall Mounting Plate

The wall or structure must be capable of supporting the weight of the appliance and associated pipe-work.

Fix the mounting plate to the wall, ensuring it is level and firmly mounted with appropriate fixings.

CAUTION: DO NOT install the unit in a place where electrical wiring or conduits are located.

Diagram shows the wall mounting plate with dimensions A, B, C, D, E, and Ø70mm hole for wall penetration. A table provides specific dimensions for each model.

Wall Penetration

Drill a Ø70mm wall penetration through the wall with a 2° to 4° fall to the outside wall.

Diagram shows a cross-section of a wall with a hole drilled at a 2° to 4° angle, labelled "INSIDE" and "OUTSIDE".

Drain Pipe Installation

1. Connect the drain pipe to the drain hose outlet of the indoor unit.
2. Bind the joint with PVC insulation tape (not supplied).

Diagram shows the drain pipe connection to the indoor unit and the application of insulation tape.

Electrical Connections (Indoor Unit)

WARNING: Must be installed, maintained, and removed by authorised persons in accordance with AS/NZS 3000 and all other relevant local regulations and municipal building codes including OH&S requirements. Ensure electric wiring is installed properly. Improper installation may cause malfunction, fire, or electric shock.

The unit must be earthed following local electrical codes.

1. Open the front panel.
2. Remove the wiring cover.
3. Insert the electrical cable(s) through the bottom side at the back of the indoor unit.
4. Secure the cable onto the control board with the cable clip.
5. Connect the cables as shown on the drawing to the corresponding terminals (L, N, S).
6. Re-install the wiring cover.
7. Close the front panel.

Diagram shows the indoor unit's internal wiring access, cable clip, and terminal connections.

Wall Installation (Mounting the Indoor Unit)

1. Remove the two foam shipping blocks from the rear of the indoor unit.
2. Position the piping as shown on the drawing.
3. Tape the refrigerant pipes, electrical cable(s), and drain hose together. Ensure the water drain hose is located at the lowest side of the bundle.
4. Hang the mounting slots of the indoor unit on the upper portion of the mounting plate. Ensure that the hooks are properly seated on the plate.
5. Push the unit towards the wall, and hook the unit onto the lower fixing hook.

CAUTION: Ensure that there is no leakage from the drain pipe connection and that the drain pipe has a continuous fall to the outside. Ensure that all wall penetrations are sufficiently weatherproofed.

Diagram illustrates the process of mounting the indoor unit onto the wall bracket, showing the hooks engaging.

Outdoor Unit Installation

Electrical Connections (Outdoor Unit)

WARNING: Must be installed, maintained, and removed by authorised persons in accordance with AS/NZS 3000 and to all other relevant local regulations and municipal building codes including OH&S requirements. Ensure electric wiring is installed properly. Improper installation may cause malfunction, fire, or electric shock.

The unit must be earthed following local electrical codes.

1. Remove the wiring cover.
2. Secure the electrical cable(s) and power cable onto the control board with the cable clip.
3. Connect the cables as shown on the drawing below (To Mains Power, To Indoor Unit).
4. Re-install the wiring cover.

Diagram shows the outdoor unit's wiring cover, cable clip, and terminal connections for mains power and indoor unit communication.

DRED Connection (Optional)

This appliance is supplied with a DRED interface, providing two connection methods: a four-wire terminal connection or an RJ45 socket.

WARNING: Must be installed, maintained, and removed by authorised persons in accordance with AS/NZS 3000 and to all other relevant local regulations and municipal building codes including OH&S requirements. Ensure electric wiring is installed properly. Improper installation may cause malfunction, fire, or electric shock.

1. Remove the wiring cover.
2. Connect the power feed to the terminal block as shown on the drawing.
3. Connect the communication cable to the DRED interface using either the four-wire terminal connections or RJ45 socket provided.
4. Re-install the wiring cover.

Diagram shows the DRED interface connections, including terminal blocks (L, N, S) and an RJ45 socket, for connecting to power and the indoor unit.

Refrigerant Pipes

Flaring

IMPORTANT:

The main cause for refrigerant leakage is due to defects with the flaring work.

The installer must ensure that all piping used complies with both:

• AS/NZS 1571:1995 - Copper - Seamless tubes for air conditioning and refrigeration.
• AS/NZS 4041:2006 - Pressure piping.

All pipework and fittings should be thoroughly examined for cleanliness and suitability for the system and refrigerant prior to assembling.

All unsealed tubing must be thoroughly inspected and, if necessary, cleaned before assembly to remove any copper residue and/or scale particles such as dirt or metal.

Metal filings must not be left in pipework after cutting as they can cause damage to the compressor (i.e. shaft seals, bearings, etc.).

Prior to assembly, refrigeration pipes must be clean and burr-free. They must not be crushed or kinked.

For flare connections, a suitable lubricant must be used between the back of the flare and the nut to avoid tearing the flare when tightening the nut.

Connecting Vapour / Liquid Pipes To Indoor & Outdoor Units

1. Align the centre of the pipes.
2. Sufficiently tighten the flare nut with fingers, then tighten with a spanner and torque wrench.

CAUTION: To prevent heat loss and wet floors due to dripping of condensation, both pipes must be properly insulated.

Diagram shows the connection of vapour and liquid pipes to the indoor and outdoor units, illustrating the use of a wrench and torque wrench on the flare nut.

CAUTION: Ensure the joint nut is tightened firmly to avoid leakage. Ensure that both the connections and the refrigerant pipes are wrapped with insulation material.

Air Purging & Leakage Test

WARNING: DO NOT mix any substance other than the specified refrigerant (R32) into the refrigerant system. When refrigerant gas leaks occur, ventilate the room immediately. R32, as well as other refrigerants, should always be recovered and never be released directly into the environment. Use a vacuum pump for R32 exclusively. Using the same vacuum pump for different refrigerants may damage the vacuum pump or the unit.

CAUTION: It is necessary to purge air and check for gas leakage after piping work is completed. If using additional refrigerant, perform air purging from the refrigerant pipes and indoor unit using a vacuum pump, then charge additional refrigerant. Use a hex socket (3/16") to operate the service valves. All refrigerant pipe joints to be tightened with a torque wrench at the specified torque.

Evacuation Vacuum Method / Leak Test

1. Remove the caps from the vapour valve, vapour valve service port and the liquid valve.
2. Connect charge hose from the low pressure gauge (manifold gauge set) to the vapour valve service port.
3. Open the low pressure gauge valve (manifold gauge set), turn on the vacuum pump and run for a minimum of 15 minutes.
4. Close low pressure gauge valve (manifold gauge set) and turn off vacuum pump.
5. Wait 2 minutes to allow pressure to stabilise, then check that the low pressure gauge is maintaining a pressure of -100 kPa (-76 cmHg).
6. Disconnect charge hose from the vapour valve service port and replace the vapour valve service port cap.
7. Open both the vapour and the liquid valves to charge the refrigerant system for test running.
8. Test run the system through both heating and cooling cycles and test for leaks.
9. Replace the vapour and liquid valve caps.

IMPORTANT: Both the vapour and liquid valve caps MUST BE on tight.

The system is now ready to run.

Diagram illustrates the evacuation process using a vacuum pump, manifold gauge set, and hoses connected to the unit's service valves.

Adding Refrigerant for Longer Line Length

Additional refrigerant for longer piping runs can be added either at the time of evacuation of the new installation or whilst the unit is operating. Refer to "Pipe Length & Elevation Limits" on page 8.

CAUTION: It is very easy to overcharge; take caution in charging refrigerant liquid and keep your eye on the scales to avoid overcharging the unit.

Take care not to discharge refrigerant into the atmosphere during installation, re-installation, repair or service.

Final Checklist

IMPORTANT: The checklist is ONLY to be completed by an Authorised Person.

If you have answered no to any of the above, you must check and correct before appliance hand-over to customer.

Contact Information

Rinnai Australia Pty Ltd

ABN 74 005 138 769 | AU45204

100 Atlantic Drive, Keysborough, Victoria 3173

P.O. Box 460, Braeside, Victoria 3195

Tel: (03) 9271 6625 | Fax: (03) 9271 6622

National Help Line Tel: 1300 555 545* Fax: 1300 555 655

Monday to Friday, 8:00 am to 5:00 pm EST.

*Cost of a local call higher from mobile or public phones.

For further information visit www.rinnai.com.au or email enquiry@rinnai.com.au

Rinnai has a Service and Spare Parts network with personnel who are fully trained and equipped to give the best service on your Rinnai appliance. If your appliance requires service, please call our National Help Line.

Rinnai recommends that this appliance be serviced every 3 years.

With our policy of continuous improvement, we reserve the right to change, or discontinue at any time, specifications or designs without notice.