Question 1

What are the core cooling efficiency and electrical performance specifications of the Haiwu CM Series Precision AC (HAIWU-AC-CM-SERIES)?

Accepted Answer

Engineered for high-density IT environments, the Haiwu CM Series delivers a rated cooling capacity of 45.0 kW to 75.0 kW with a Sensible Heat Ratio (SHR) exceeding 0.90–0.95. It operates on a three-phase five-wire 380VAC ± 15% (50Hz) grid with a rated input power of 18.5 kW. Utilizing eco-friendly R410A refrigerant, electronic expansion valves (EEV), and backward-curved EC centrifugal fans, it yields an internal airflow range of 12,000 to 18,000 m³/h. Under standard IT room conditions (24°C DB, 50% RH), it achieves an Energy Efficiency Ratio (COP) greater than 3.4, significantly lowering datacenter PUE.

Question 2

How does the Haiwu CM Series support airflow configuration, group networking, and multi-unit expansion in datacenter deployments?

Accepted Answer

With physical dimensions of 1980 × 1200 × 900 mm, the CM Series accommodates both underfloor downflow/top-return and front upflow distribution architectures. Equipped with an intelligent microcomputer touchscreen, it offers RS485 interfaces natively supporting Modbus-RTU and SNMP protocols for direct DCIM platform integration. For multi-unit clustering, up to 32 units can be interconnected via a CAN-bus teamwork network, providing automated lead-lag rotation, dynamic heat-load sharing, anti-competitive operation control (preventing simultaneous cooling/heating), and failover auto-switchover to support robust N+1 or 2N redundancy.

Question 3

What protection mechanisms and environmental tolerance features ensure the reliability of the CM Series under extreme conditions?

Accepted Answer

Certified to IP20 enclosure standards for telecom environments, the indoor unit operates reliably within -15°C to +45°C (with optional low-ambient condensing kits enabling outdoor cold starts down to -40°C). Electrical robustness includes a wide ±15% voltage tolerance, automatic phase sequence detection, and reverse-phase protection. It features dual high/low refrigerant pressure switches, discharge temperature limiters, thermal overload protection, and precise intake airflow sensors. Dual-float condensate level sensors trigger audio-visual interlocking alarms, while adaptive condensation control prevents coil freeze-ups during low-load operation.

Key specifications	Value
Rated Cooling Capacity	45.0 ~ 75.0 kW
Grid Power Supply System	380VAC ± 15% (three-phase five-wire 50Hz) VAC
Rated Input Power	18.5 kW
Refrigerant Type	R410A
Ingress Protection (IP Rating)	IP20 / standard protection for industrial equipment rooms
Internal Airflow Volume	12000 ~ 18000 m³/h
Operating Temperature	-15°C ~ +45°C
Physical Dimensions Spec	1980 × 1200 × 900 mm
Installation / Mounting Mode	Floor-standing vertical installation in large equipment rooms (downflow/upflow)
Communication Interface	RS485 Modbus + SNMP Ethernet network management card

Haiwu CM Series Datacenter Precision Air Conditioning System (40kW~70kW)

What this product is

What this product is

What problem it solves

Who and where it is for

Core advantages

Technical specifications

Applications

Telecommunication IDC hubs

Enterprise private cloud datacenters

Scientific compute server rooms

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