19 Apr 2025

Cairnhill Nine

Joven Water Heater Replacement: Joven JH56 to Joven JSH56 at Cairnhill Nine on 31 Jan 2025

A homeowner at Cairnhill Nine faced recurring issues with their Joven storage water heater. The model, a JH56, was no longer producing consistent hot water. After several interruptions, they contacted Homeone for expert help and a long-term fix.

Upon consultation, we identified that the water heater had reached the end of its lifespan. The customer opted for a new Joven water heater installation, upgrading to the JSH56 model. Homeone scheduled the replacement and planned a ceiling access modification to ensure full accessibility for both the new installation and future maintenance.

  • Project location

    Cairnhill Nine

  • Property type

    Condominium

Joven Water Heater Replacement .Condo. 00

Before

Replacement of a Joven JH56 water heater at Condo to resolve heater problems end of service life.

After

The Joven JSH56 has been newly installed to the existing solar water heater system, with all connecting pipework made of stainless steel. The installation includes a new stop valve, double check valve, drain pipe, electric bonding, and 2.5mm² wire, and a submission has been filed to PUB to ensure safety and compliance with PUB regulations. Additionally, Homeone offers a 1-year warranty on this installation, complementing the manufacturer's warranty, ensuring peace of mind and reliable service.

Joven Water Heater Replacement at Cairnhill Nine

Old Water Heater:

Joven JH56

 

Old Water Heater:

Joven JSH56

 

Site Findings

Our technician arrived on-site to evaluate the situation before the Joven water heater installation work began. We verified that the Joven JH56 unit was old and underperforming, with signs of wear and inconsistent heating response. Additionally, the original access panel was not usable—aircon piping had blocked direct access to the heater, making both removal and maintenance impossible through the current panel.

A proper assessment of plumbing and electrical connections was also carried out. Fortunately, the electrical circuit, bonding, and plumbing layout were in good condition and required only minor adjustments to support the new Joven JSH56 heater.

Proposed Solution

To address the homeowner’s hot water problems, we proposed a complete Joven water heater replacement, using the updated JSH56 model. This model matched the original capacity and mounting requirements while offering enhanced energy efficiency.

Additionally, our team proposed cutting a new access panel directly beneath the heater to bypass the obstructed aircon pipework. This change ensures proper accessibility for safe installation and ease of future servicing. All works would be handled by our trained team, supervised by a PUB licensed plumber to ensure compliance with local plumbing and electrical safety standards, meeting the expectations of a trusted Joven water heater installation process.

Work Scope for Joven Water Heater Replacement

1. Site Assessment and Pre-Check:

  • Inspected plumbing and electrical layout

  • Verified electrical bonding and drain pipe functionality

  • Confirmed heater model upgrade compatibility

2. Ceiling Access Panel Modification:

  • Cut open a new access panel due to the aircon pipe obstruction

  • Repositioned access directly below the heater for direct servicing

  • Prepped the ceiling for reinstatement post-installation

3. Removal of Existing Heater:

  • Dismounted the faulty Joven JH56 from ceiling mount

  • Disconnected all piping and electrical connections safely

  • Cleared installation area of corrosion and residue

4. Installation of New Heater – Joven JSH56:

  • Mounted new heater using high-strength ceiling brackets

  • Connected inlet and outlet with stainless steel flexible pipes

  • Rewired to existing circuit with safety insulation

  • Checked bonding and grounding as per PUB regulations

5. Testing and Commissioning:

  • Powered on unit and confirmed operational response

  • Monitored water heating, pressure, and leakage

  • Verified the drain pipe performance and safety valve operation

6. Final Clean-Up:

  • Cleared all packaging, debris, and removed the old unit

  • Cleaned work area and patched the ceiling panel area

7. Documentation and Handover:

  • Explained system usage and care to the homeowner

  • Submitted internal checklist and completed PUB compliance documentation under the supervision of a PUB licensed plumber

 

Conclusion

This Rheem water heater installation project at Cairnhill Nine involved the seamless replacement of a Joven JH56 with the updated JSH56 model. In addition to the technical installation, our team improved accessibility by modifying the ceiling access panel, ensuring future maintenance can be performed without obstruction.

Supervised by a PUB licensed plumber, every step of the project—from safety checks to testing—was carried out with precision and compliance. The homeowner now benefits from a reliable, efficient hot water system installed with care and long-term support in mind.

Property Name: Cairnhill Nine

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