Medium-Temperature Single Screw Unit

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Medium-Temperature Single Screw Unit

This Screw Condensing Unit Series, suitable for evaporative temperatures from 10°C to -40°C, is designed for various refrigeration systems. It employs semi-hermetic screw compressors from leading brands like BITZER and HANBELL, ensuring high efficiency, durability, and quiet operation. The unit supports multi-level energy adjustment to save power under varying loads. It features premium components and a smart micro-computer control system with comprehensive protections. Equipped with an economizer for medium and low temperatures, it enhances efficiency while reducing costs. Its compact design saves space and simplifies operation, offering refrigerants R22 or R404A with up to 7 compressors in parallel units.


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screw condensing unit single type R22 R404A screw compressor

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The Topchill Med-Temp Single Screw Unit is a high-efficiency condensing solution designed for medium-temperature refrigeration systems (evaporating temperature: +10°C to -40°C). It features semi-hermetic screw compressors from leading brands (BITZER, HANBELL, FUSHENG) and an integrated economizer, delivering reliable cooling for commercial refrigeration, industrial processes, and small commercial spaces. With support for R22 and R404A refrigerants and parallel operation (up to 7 compressors), it offers flexible configuration to match diverse cooling loads, making it a top choice for supermarkets, restaurants, and mid-sized industrial facilities.

screw condensing unit

High-Efficiency Semi-hermetic Screw Compressors: Equipped with BITZER (Germany) or HANBELL (Taiwan) semi-hermetic screw compressors, the unit boasts a cooling efficiency (COP) of 3.8–4.2, reducing energy consumption by 28% compared to reciprocating compressors.

Wide Temperature Adaptability: Operates from +10°C (for fresh produce storage) to -40°C (for medium-depth freezing), covering most medium-temperature refrigeration needs (e.g., walk-in coolers, display cases).

Multi-Level Energy Adjustment: The compressor supports 3–5 levels of capacity adjustment (25%–100%), matching cooling load changes in real time. This cuts energy waste by 35% during low-load periods (e.g., nighttime supermarket operation).

Economizer-Enhanced Performance: Medium and low-temperature models include an economizer, which increases cooling capacity by 15% and reduces compressor discharge temperature, extending service life by 20%.

Smart Micro-Computer Control: A microprocessor-based system automatically accumulates running time, monitors key parameters (temperature, pressure, current), and provides protections for phase loss, overheating, and overloading. It also supports remote data logging for maintenance analysis.

Compact & Space-Saving Design: The integrated layout (compressor, condenser, and controller) reduces installation space by 35% compared to traditional split units. An optional protective cover enables outdoor installation in harsh weather.

Flexible Refrigerant & Parallel Operation: Supports R22 (for general use) and R404A (for low-GWP requirements). Parallel operation (up to 7 compressors) allows capacity scaling for large systems (e.g., supermarket cold aisles).

This med-temp unit is designed for 380V/50Hz power supply and uses R22 or R404A refrigerant. Cooling capacity varies by evaporating and condensing temperatures: for example, the TQ-HLGS－40M model (40HP) delivers 101.7 kW of cooling capacity (Q0) at 0°C evaporating temperature and 40°C condensing temperature, with a power consumption (Pe) of 33.9 kW. At -40°C evaporating temperature, the same model provides 40.4 kW of Q0 and 31.2 kW of Pe. The TQ-HLGS－120M model (120HP) offers the highest capacity, with 313.4 kW of Q0 at 0°C evaporating temperature and 40°C condensing temperature. All models feature a W-shaped condenser (for air-cooled versions) or shell-and-tube condenser (for water-cooled versions) and include high/low-pressure gauges, solenoid valves, and oil separators as standard.

Med Temp Single Screw unit Cooling Capacity R404A (380V/50Hz)
Model	Condensing temperature		Capacity Qo(kw) Power Consumption Pe(kw)
			Evaporating temperature(℃)
			0	-10	-20	-30	-35	-40	-45
TQ-HLGS－40M	40	Q0	101.7	68.2	62.3	40.4
TQ-HLGS－40M	40	Pe	33.9	31.6	34.7	31.2
TQ-HLGF－40M	45	Q0	91.2	59.4	57.8	36
TQ-HLGF－40M	45	Pe	38.2	35.3	39.6	33.7
TQ-HLGS－50M	40	Q0	132.3	88.7	81	52.6
TQ-HLGS－50M	40	Pe	43.1	40.1	44.2	40
TQ-HLGF－50M	45	Q0	118.6	77.3	75.1	46.8
TQ-HLGF－50M	45	Pe	48.5	44.8	50.4	43.2
TQ-HLGS－60M	40	Q0	146.3	98.1	89.5	58.2
TQ-HLGS－60M	40	Pe	48.2	45	49.5	44.5
TQ-HLGF－60M	45	Q0	131.1	85.4	83.1	51.7
TQ-HLGF－60M	45	Pe	54.3	50.2	56.4	48.2
TQ-HLGS－70M	40	Q0	176.3	118.2	107.9	70.1
TQ-HLGS－70M	40	Pe	56.4	52.5	57.8	53.3
TQ-HLGF－70M	45	Q0	158	103	100.1	63.9
TQ-HLGF－70M	45	Pe	63.5	58.7	65.9	57
TQ-HLGS－80M	40	Q0	197.5	132.5	120.9	78.5
TQ-HLGS－80M	40	Pe	63.4	59.1	65	60
TQ-HLGF－80M	45	Q0	177.1	115.4	112.2	71.6
TQ-HLGF－80M	45	Pe	71.4	66	74.1	64
TQ-HLGS－90M	40	Q0	227.8	152.8	139.4	90.6
TQ-HLGS－90M	40	Pe	72.2	67.3	74	68.3
TQ-HLGF－90M	45	Q0	204.2	135.2	129.4	82.6
TQ-HLGF－90M	45	Pe	81.3	75.1	84.4	73.2
TQ-HLGS－100M	40	Q0	240.8	161.5	147.4	95.7
TQ-HLGS－100M	40	Pe	75.9	70.7	77.8	71.8
TQ-HLGF－100M	45	Q0	215.9	142.9	136.8	87.3
TQ-HLGF－100M	45	Pe	85.5	79	88.8	77.2
TQ-HLGS－105M	40	Q0	263.6	176.7	161.3	104.8
TQ-HLGS－105M	40	Pe	83.4	77.8	85.6	78.9
TQ-HLGF－105M	45	Q0	236.3	156.4	149.7	95.6
TQ-HLGF－105M	45	Pe	94	86.8	97.6	84.7
TQ-HLGS－110M	40	Q0	290.4	194.7	177.7	115.4
TQ-HLGS－110M	40	Pe	90.8	84.6	93.1	85.9
TQ-HLGF－110M	45	Q0	260.3	172.3	164.9	105.3
TQ-HLGF－110M	45	Pe	102.3	94.5	106.2	92.6
TQ-HLGS－120M	40	Q0	313.4	210.1	191.8	124.6
TQ-HLGS－120M	40	Pe	99.5	92.7	102	94.1
TQ-HLGF－120M	45	Q0	280.9	186	178	113.6
TQ-HLGF－120M	45	Pe	112.1	103.5	116.3	100.8

Notes:

1. Based on sunction temperature ≥ -10℃,running with economizer;Evaporating temperatures ≤ -20℃,running with economizer.

2. Compressor transition options(Bitzer,Fusheng,Refcome)

NOMENCLATURE

TQ-BHLGS2-100M

■ TQ: Topchill brand

■ B: B-Parallel units；single type omit

■ H: Stands for compressor brand, B-Bitzer, H- hanbell, F-fusheng

■ LG: LG-semi-hermetic single stage screw compressor; S-semi-hermetic double-stage screw compressor

■ S: F-air cooled; S- water cooled

■ 2: qty of compresssor ( 1 compressor omit)

■ 100: Horse power

■ M: Medium temp system; L-low temp system

Commercial Refrigeration Systems: Ideal for supermarkets, convenience stores, and restaurants. Compatible with R404A refrigerant and equipped with a large-capacity liquid receiver and oil separator, it ensures stable operation for walk-in coolers, frozen food display cases, and beverage coolers.

Climate Control in Small Commercial Spaces: Suitable for cooling small offices, server rooms, and retail stores. Its compact design (with optional protective cover) allows outdoor installation, while the efficient W-shaped condenser provides effective heat rejection, maintaining indoor temperatures at 22–26°C.

Industrial Process Cooling: Used for cooling small-to-medium industrial processes (e.g., plastic injection molding, small chemical reactors). The unit’s high/low-pressure controls and solenoid valves protect equipment from overload, ensuring consistent process temperatures.

Space-Efficient Applications: Perfect for locations with limited space (e.g., urban restaurant backrooms, small labs). The internally threaded pipe heat exchanger minimizes overall dimensions, and the aesthetic cover blends with indoor decor without sacrificing performance.

Q: What is the MOQ?

A: 1 piece, supporting both single-unit purchases and parallel system orders (up to 7 units).

Q: What is the lead time?

A: 2–4 weeks. Units with BITZER compressors may require an extra 5 days due to brand supply lead times.

Q: What are the payment terms?

A: For orders over 10,000 USD: 30% deposit in advance, 70% before goods loading. For orders under 10,000 USD: 100% advance payment.

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Medium-Temperature Single Screw Unit

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