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Frequently Asked Questions

Quick answers about products, applications, selection, services, and ESCO.

Product Selection Support

Our engineers can help match the cooling system to your project load and site conditions.

Warranty Information

Review coverage, warranty periods, exclusions, conditions, and claim requirements.

Contact the Support Team

Share your project or equipment details and receive guidance on the next step.

FREQUENTLY ASKED QUESTIONS

Answers to common questions about LINGDU.

Can’t find what you’re looking for? Contact our team directly for project-specific guidance.
Still need help?
What does LINGDU offer?
LINGDU is a Hong Kong–based provider of premium HVAC and chiller systems. Our product range is organised into two series — the Premium Series and the Select Series — alongside a full range of services including chiller rental, maintenance, repair, and energy-efficiency programmes.
The Premium Series consists of high-end, fully certified chiller systems suited to demanding applications and projects with the highest performance requirements. The Select Series offers reliable, cost-effective systems for projects where dependable performance and strong value are the priority. Our team can help you choose the series best matched to your project.
LINGDU serves clients across the Asia-Pacific region, with products and services available in Hong Kong, Singapore, and Malaysia. Please contact our team to confirm availability for your specific location.
LINGDU supplies cooling solutions for a wide range of environments — from commercial buildings, office towers, hotels, and mixed-use developments, to data centres and industrial facilities where precise, uninterrupted cooling is essential.
Yes. Our engineers provide sizing and selection support to match the cooling system to the specific load and conditions of your site. Sharing details such as your building type, floor area, and cooling requirements allows us to recommend the most suitable solution.
Yes. LINGDU supports clients across the full lifecycle of a system — from sizing and selection through to commissioning and after-sales service — helping to keep your cooling systems running reliably over the long term.
Yes. Our maintenance and repair services are available for both LINGDU systems and chillers from other manufacturers.
Through our ESCO programme, LINGDU can upgrade a facility’s cooling system with zero upfront cost to the customer. The cost of the upgrade is recovered from the energy savings it generates, and ownership of the equipment transfers to the customer once those savings have covered the cost. Please see our Energy Service Company page for full details.
Simply contact our team with a brief description of your project or facility. An engineer will follow up to understand your requirements and prepare a tailored proposal.
PROJECT GUIDANCE

The right recommendation starts with the right project information.

Our engineers provide sizing and selection support to match the cooling system to the specific load and conditions of your site.
  • Building or facility type
  • Floor area
  • Cooling requirements
Discuss Your Project

WARRANTY

Clear coverage for your LINGDU cooling system.

LINGDU stands behind the quality and reliability of its HVAC and chiller systems. The warranty provides assurance that, under normal use and operating conditions, a LINGDU system will perform as intended.
WARRANTY PERIOD

Complete chiller unit

1 year from the date of installation

Air-bearing chiller compressor

Extended 3 years from the date of installation

WHAT IS COVERED
  • Improper use of the chiller
  • Incorrect installation
  • Inadequate or missed maintenance
  • Operation outside the system's specified conditions
  • Accidents
  • Modification or repair carried out without LINGDU's approval
  • Normal wear of consumable parts
WHAT IS COVERED
Within the applicable warranty period, LINGDU will repair or replace a component found to be defective in materials or workmanship under normal use and operating conditions. This applies to the complete chiller unit for one year, and to the compressor of air-bearing chillers for three years.
CONDITIONS
To keep the warranty valid, the system must be installed correctly, operated within its specified conditions, and maintained appropriately throughout the warranty period. LINGDU may request evidence of proper installation and maintenance when assessing a claim.

HOW TO MAKE A WARRANTY CLAIM

Provide these details when contacting LINGDU.

Contact LINGDU with these details and the team will advise on the next steps.

  • Product model
  • Product serial number
  • Installation date
  • Clear description of the fault
Start a Warranty Enquiry