HCM094T4 HCM109T4 HCM120T4 Series Scroll Refrigeration Compressor for HVAC Chiller Heat Pump

一、Product Overview

The HCM series includes three models: HCM094T4, HCM109T4, and HCM120T4. These are R22 high-temperature air conditioning and process cooling compressors specifically designed for 7.8 to 10 HP high-capacity commercial applications​ within the Danfoss H Series. Compared to the HLM series, the HCM series features larger displacement and higher single-unit cooling capacity, covering 23.06 kW to 29.13 kW. It is suitable for commercial central air conditioning, industrial cooling, and data center precision cooling systems that demand higher cooling concentration. All three models share the same housing platform, with unified installation dimensions and standardized interfaces, facilitating unit design iteration and after-sales replacement.

二、Model Specifications

Note: The above data represents rated values under 50Hz and R22 operating conditions. The entire series features an outer diameter of 184 mm, width of 232 mm, total height of 545 mm, suction pipe interface of 1 1/8 inch, discharge pipe interface of 7/8 inch, using ODF brazed connections. Maximum high-side working pressure is 31.1 bar, low-side 26.2 bar. Speed is 2900 rpm at 50Hz​ and 3500 rpm at 60Hz.

三、Technical Features

The HCM series adopts Danfoss' hermetic flexible scroll structure. The fixed and orbiting scroll plates are precision-machined to ensure stable meshing clearance and low compression loss. The compressor has a built-in overload protector​ that automatically disconnects the motor circuit under abnormal operating conditions. It is charged with alkylbenzene oil (160ABM), with an oil charge of 2.66 L, naturally matched with R22 refrigerant. The housing uses a high-strength casting process, with an outer diameter of 184 mm, making it compact. Interfaces adopt a standardized ODF brazing design, facilitating piping connections.

四、Core Advantages

1. High-Capacity Single-Unit Coverage, Reducing System Complexity.​ The HCM094T4 delivers a single-unit cooling capacity of 23,060 W, while the HCM120T4 reaches 29,130 W. In 7.8–10 HP systems, a single HCM unit can replace a parallel configuration of two smaller compressors, reducing brazed joints, electrical connections, and potential leakage points, thereby simplifying piping and electrical control system design.

2. High Energy Efficiency, Economical Operation.​ All three models achieve a COP of 3.39–3.43​ and an EER of 11.6–11.7 Btu/h/W. The HCM109T4 boasts the highest COP of 3.43​ in the series, meaning every 1 kW of electricity consumed produces 3.43 kW of cooling. Compared to traditional piston compressors, the energy efficiency improvement is significant, keeping long-term electricity costs controllable.

3. Built-in Multiple Protections, High Reliability.​ The entire series comes standard with a built-in overload protector, coordinated with system-level high/low-pressure protection interfaces (requires external pressure switch interlock). It automatically shuts down under abnormal conditions such as overheating, overloading, and abnormal high/low pressure, reducing risks of compressor burnout and shaft seizure.

4. Unified Housing, Easy Installation.​ All three models share the same 184 mm outer diameter, 232 mm width, 545 mm total height, and 44 kg net weight, with consistent mounting base and piping interface positions. The unified structure within the series and standardized parts facilitate unit iteration, selection, and after-sales maintenance.

五、Customer Benefits

For equipment manufacturers and engineering integrators, the HCM series, with its single-unit cooling output of 23–29 kW, helps simplify unit design, reduce the number of compressors and piping complexity, and lower assembly costs and potential leakage risks. The unified housing dimensions and interface standards allow a single outdoor unit housing to cover three cooling capacity levels from 7.8 HP to 10 HP, reducing R&D and testing costs. For end-users, the high energy efficiency of COP 3.39–3.43 and the built-in protection system mean controllable operating electricity costs and low downtime maintenance risks, making it suitable for commercial scenarios with high continuous operation requirements.

六、Application Scenarios

✅ Commercial central air conditioning units, air-cooled chiller units

✅ Constant temperature refrigeration systems for supermarkets, hotels, and office buildings

✅ Industrial process cooling, medium-to-large scale fresh-keeping cold storage refrigeration equipment

✅ Commercial heat pump units, constant temperature & humidity air conditioning equipment

✅ Precision cooling systems for data centers and communication base stations

七、Frequently Asked Questions (FAQ)

Q1: How to choose between the HCM series and the HLM series?

The HCM series has a displacement of 126–162.4 cm³/rev and a cooling capacity of 23.06–29.13 kW, suitable for 7.8–10 HP high-capacity centralized systems. The HLM series has a displacement of 93.1–110.9 cm³/rev and a cooling capacity of 16.88–19.89 kW, suitable for 5.7–6.8 HP light commercial systems. The housing dimensions of the two series are different; the HCM has a suction pipe of 1 1/8" and discharge pipe of 7/8", while the HLM has a suction pipe of 7/8" and discharge pipe of 1/2". They are not directly interchangeable. Selection should match cooling demand and piping specifications.

Q2: Can the HCM series be used for low-temperature freezing applications?

The HCM series is a high-temperature air conditioning dedicated platform. Its evaporating temperature range is suitable for air conditioning and process cooling; it is not recommended for low-temperature freezing (e.g., below -20°C). If a low-temperature freezing compressor is needed, please select the Danfoss MT/MTZ series​ or LLZ series.

Q3: How to match the electrical parameters of the HCM series?

The Locked Rotor Current (LRA) for the three models is 95 A, 110 A, and 140 A respectively, with Rated Load Amperage (RLA) of 13.5 A, 16.0 A, and 19.2 A. During selection, ensure that the capacity of the power supply lines, contactors, and protection switches meets the LRA requirements to avoid startup tripping.

Q4: What is the maintenance interval for HCM series compressors?

Under normal operating conditions, it is recommended to check the acid value and moisture of the refrigerant oil every 10,000 hours​ of operation, and replace the refrigerant oil and oil filter (if configured in the system) every 20,000 hours or 3 years. If the system experiences frequent high/low-pressure alarms or abnormal oil return, the inspection interval should be shortened.

Q5: What should be noted when selecting between 50Hz and 60Hz versions?

A single model is compatible with 50Hz and 60Hz​ dual-frequency power supplies. The speed is 2900 rpm at 50Hz and 3500 rpm at 60Hz, with cooling capacity varying with speed. During selection, the cooling parameters must be verified according to the power frequency of the target market; the 50Hz selection table should not be directly applied to 60Hz markets.

You need a compressor; we need a long-term partner.​ The entire HCM series is kept in regular stock, with tiered pricing for bulk purchases. Let the first cooperation start with one unit, and we will treat every subsequent unit as we do for our long-standing clients. Welcome to inquire.