Function Grades & Plans
Choose a function grade and payment plan to suit your equipment and goals.
Function grades
and payment plans
* Automated control is common to all grades. HVAC is offered in the energy saving & DR grade only. DR requires a separate contract.
Payment plans
- Upfront cost
- With upfront cost / Full-Flat
(¥0 upfront) - DR-revenue discount
- With / Without
- Use of subsidies
- With / Without
Choose from 8 options
Common payment terms
Common to all options: the Full-Flat plan includes equipment, installation and construction costs in the monthly fee. Fees are billed annually in advance, starting the month after construction begins. Minimum terms are set to match subsidy programmes and DR contracts. Fees may be reviewed about once a year based on prices, interest rates, electricity regulations, DR performance and other factors. Upfront, monthly and option costs are quoted individually.
* Best-effort service. IoT equipment is on loan; normal failures are repaired free during the warranty period.
Reliability
& security
Behaviour on failure
Layered redundancy and security support stable operation, with insurance for the remaining risk.
① Communication loss ② Our cloud outage ③ Our device failure — operation suited to the equipment’s specifications supports continued cooling and HVAC. Measures include standalone IoT operation during communication loss and reversion to existing controls if our device stops. Detected faults are reported to registered contacts.
Automatic alerts
Temperature and system anomalies are detected automatically, 24/7, with automated email and phone alerts.
Standalone IoT operation
The on-site IoT unit continues operating even if communication is lost.
Return to existing controls
If our device stops, the system is designed to revert to existing controls. Switchover procedures depend on the equipment.
Dual communication lines
For sites with high availability requirements, we propose primary and backup lines through a custom design.
Insurance coverage
Liability insurance up to ¥1 billion per year and cyber insurance of ¥100 million.
JC-STAR ★1
conformity label

- Registration No.
- 2026069900002498
- Valid until
- 1 June 2028
- Product:
- Intelligent IoT DR System (Box-G)
Not on your corporate network
Communication runs over LTE, without connecting to your network.
Vulnerability disclosure policy
Dedicated reporting contact
On-site operation comes first
Equipment control-panel operation overrides automatic control.
* Reversion depends on the existing equipment. If it does not switch over, please switch manually. * The service is provided on a best-effort basis; redundancy does not guarantee uninterrupted or error-free operation. * Dual communication lines are a custom design for high-availability sites and are not standard. * Amounts are insurance coverage limits, not the scope or cap of our liability. Damage to the refrigeration equipment itself is excluded. * JC-STAR ★1 is based on self-assessment against its conformity checklist and applies only to the product and model above. * As of September 2026. Details are governed by the Terms of Use and Explanation of the Basics of Greenphard’s Services.