Home » Products » Refrigeration Compressor » DANFOSS COMPRESSOR » MT Series » DANFOSS air conditioning compressor MTZ36 JG MTZ40 JH MTZ44 HJ MTZ50 HK MTZ56 HL MTZ64 HM MTZ72 HN MTZ80 HPl Air Refrigeration & Heat Exchange Part

DANFOSS air conditioning compressor MTM/MTZ 250 MTM/MTZ288 HVV MTM/MTZ 320 HWW HUU Model Air Refrigeration & Heat Exchange Part

DANFOSS air conditioning compressor MTZ36 JG MTZ40 JH MTZ44 HJ MTZ50 HK MTZ56 HL MTZ64 HM MTZ72 HN MTZ80 HPl Air Refrigeration & Heat Exchange Part

Name: DANFOSS air conditioning compressor MTZ36 JG MTZ40 JH MTZ44 HJ MTZ50 HK MTZ56 HL MTZ64 HM MTZ72 HN MTZ80 HPl Air Refrigeration & Heat Exchange Part
Brand: DANFOSS
Rating: 5.0 (28 reviews)

The MTZ series delivers environmentally conscious hermetic reciprocating compression engineered specifically for HFC refrigerant systems. It serves as the reliable power source across commercial HVAC, convenience store cold displays, medical process cooling, and small-to-medium chiller applications.

Model:
MTZ18 JA MTZ22 JC MTZ28 JE MTZ32 JF MTZ36 JG MTZ40 JH MTZ44 HJ MTZ50 HK MTZ56 HL MTZ64 HM MTZ72 HN MTZ80 HP MTZ100 HS MTZ125 HU MTZ144 HV MTZ160 HW MTM/MTZ200 HSS MTM/MTZ250 HUU MTM/MTZ288 HVV MTM/MTZ
Brand:
DANFOSS

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Product Description

I. Series Positioning

The Danfoss Maneurop® MTZ series is an environmentally friendly product line of hermetic reciprocating compressors optimized for HFC refrigerants. It shares the same mechanical platform as the MT series but is factory-charged with POE ester oil (160PZ), enabling full compatibility with various HFC refrigerants including R404A, R407C, R134a, R507A, and more. The MTZ series is positioned for medium-to-high-temperature refrigeration applications, with an evaporation temperature range of -25°C to +15°C. It is suitable for commercial air conditioning and HVAC, convenience store and discount store display cases, process cooling in medical settings, and small-to-medium chillers.

II. Full Series Parameter Comparison Table

No.	Model	Displacement (cm³)	Nominal HP	Cooling Capacity (W)	Input Power (kW)	COP	Compatible Refrigerants
1	MTZ18 JA	30.23	1.5	3,726 (R407C)	1.39	2.47	R134a/R404A/R407C, etc.
2	MTZ22 JC	38.12	1.8	4,777 (R407C)	1.81	2.64	Multi-refrigerant compatible
3	MTZ28 JE	48.06	2.3	6,137 (R407C)	2.35	—	Multi-refrigerant compatible
4	MTZ32 JF	53.86	2.5	6,941 (R407C)	2.67	2.60	Multi-refrigerant compatible
5	MTZ36 JG	60.47	3.0	7,994	3.12	—	R134a/R404A/R407, etc.
6	MTZ40 JH	67.89	3.5	9,128	3.61	2.53	Multi-refrigerant compatible
7	MTZ44 HJ	76.22	4.0	9,867 (R407C)	3.63	2.72	Multi-refrigerant compatible
8	MTZ50 HK	85.64	4.5	11,266	—	—	R134a/R404A/R407, etc.
9	MTZ56 HL	96.13	5.0	12,944	4.69	—	Multi-refrigerant compatible
10	MTZ64 HM	107.71	5.3	14,587	5.25	2.78	R134a/R404A/R407, etc.
11	MTZ72 HN	120.94	6.0	16,380	5.97	—	Multi-refrigerant compatible
12	MTZ80 HP	135.78	7.0	19,900 (R407C)	—	—	Multi-refrigerant compatible
13	MTZ100 HS	171.26	8.3	22,111	7.85	—	Multi-refrigerant compatible
14	MTZ125 HU	215.44	10.0	29,212	10.15	—	Multi-refrigerant compatible
15	MTZ144 HV	241.87	12.0	32,934	11.57	—	Multi-refrigerant compatible
16	MTZ160 HW	271.48	13.5	—	—	—	Multi-refrigerant compatible
17	MTM/MTZ200 HSS	—	15.0	46,807	15.97	2.93	Multi-refrigerant compatible
18	MTM/MTZ250 HUU	430.88	20.0	37,746	12.45	3.03	Multi-refrigerant compatible
19	MTM/MTZ288 HVV	—	22.0	46,773	15.49	3.02	Multi-refrigerant compatible
20	MTM/MTZ320	—	25.0	76,547	26.79	2.86	Multi-refrigerant compatible

Note: MTZ series compatible refrigerants include but are not limited to: R404A, R407C, R452A, R407A, R134a, R454C, R407F, R513A, R448A, R455A, R449A, etc.

III. Full Series Detailed Analysis

Feature – Technical Characteristics

The MTZ series shares the same hermetic reciprocating mechanical platform as the MT series, adopting high-efficiency ring valves, high-torque motors, and a fully suction-gas cooled design, equipped with internal motor protection devices. Units are factory-charged with POE ester oil (160PZ), sealed with dry nitrogen protection gas, and feature Rotalock connections for easy installation and maintenance. The MTZ series covers a wide range of models from single-cylinder to eight-cylinder configurations, with displacements from 30.23 cm³ to 430.88 cm³, meeting full-scenario demands from small refrigeration to large industrial cooling.

Advantage – Technical Advantages

Broad Multi-Refrigerant Compatibility. The MTZ series is compatible with over ten refrigerants including R404A, R407C, R134a, R507A, R452A, R448A, and R449A, as well as A2L low-GWP refrigerants such as R454C and R455A. This characteristic allows a single compressor to adapt to multiple refrigerant schemes, significantly simplifying OEM inventory management and refrigerant transition costs. For markets undergoing environmental refrigerant transitions—from R22 to R404A/R407C, or from R404A to low-GWP refrigerants like R448A/R449A—the MTZ series provides a one-stop compatibility solution.
Direct Replacement for MTE Compressors. The MTZ series can be used not only in new systems but also as a direct replacement for Maneurop MTE compressors in legacy systems, without modifying piping or redesigning. For equipment upgrades and maintenance markets, this means minimal conversion cost and shortest downtime.
Comprehensive and Reliable Internal Motor Protection. Single-phase MTZ models use temperature/current dual-sensing bimetal protectors that monitor both main and start winding currents and winding temperatures. Three-phase MTZ models feature overcurrent/overheat protection at the star point, disconnecting all three phases simultaneously via bimetal elements, ensuring motor safety under various abnormal operating conditions.

Benefit – User Benefits

For Equipment Manufacturers: The MTZ series means one compressor model adapts to multiple refrigerant schemes, reducing R&D costs and inventory complexity while accelerating time-to-market.
For Refrigeration Contractors: The MTZ series means transitioning from R22 to HFC systems requires no change in compressor brand or installation method, reducing technical risk and training costs.
For End Users and Service Technicians: The MTZ series eliminates concerns about refrigerant compatibility during compressor replacement—as long as HP and connections match, MTZ can directly replace MTE compressors, drastically shortening downtime.
For Forward-Looking Projects: MTZ series support for low-GWP refrigerants such as R448A and R449A makes it a future-proof choice for meeting environmental regulations.

IV. Application Scenario Quick Selection Guide

Application Scenario	Recommended Model	HP	Key Advantage
Small cold storage, milk tanks, beverage coolers	MTZ18 JA – MTZ22 JC	1.5–1.8	Lightweight, multi-refrigerant compatible
Ice machines, small refrigeration display cases	MTZ28 JE – MTZ32 JF	2.3–2.5	R407C optimized, high cost-performance
Medium cold storage, food retail	MTZ36 JG – MTZ44 HJ	3.0–4.0	Twin-cylinder smoothness, liquid slug resistance
Medium cold storage, process cooling	MTZ50 HK – MTZ64 HM	4.5–5.3	Large displacement, low-GWP compatible
Large cold storage, food processing	MTZ72 HN – MTZ100 HS	6.0–8.3	Four-cylinder, full multi-refrigerant compatibility
Large industrial cooling, centralized cooling	MTZ125 HU – MTM/MTZ320	10–25	Ultra-large displacement, supports multi-unit parallel

Quick Selection Tips:

Choose MTZ series for HFC refrigerants; choose MT series for R22 systems. From MTZ18 JA (1.5 HP) to MTM/MTZ320 (25 HP): for low cooling demand, select 18–32; for medium demand, select 36–64; for high capacity, select 72–100; for ultra-high capacity, select 125–320.

V. Frequently Asked Questions

Q1: What refrigerant and lubricant does the MTZ series use?

The MTZ series is factory-charged with POE ester oil (160PZ) and is compatible with HFC refrigerants including R404A, R407C, R134a, R507A, R452A, R448A, R449A, as well as A2L low-GWP refrigerants such as R454C and R455A. Mineral oil must not be used, as it will cause lubrication failure.

Q2: Can the MTZ series replace the MT series?

Not directly. Both share identical mechanical structures; the only difference is factory lubricant—MT uses mineral oil (for R22), while MTZ uses POE ester oil (for HFC refrigerants). To interchange, the lubricant must be changed: replace mineral oil in MT with POE oil, or POE oil in MTZ with mineral oil.

Q3: What is the maximum working pressure of MTZ series compressors?

Maximum high-side working pressure is 29.4 bar; low-side is 22.6 bar (varies by model). Maximum test pressure: high-side 435 psi(g), low-side 362 psi(g).

Q4: What is the operating temperature range of the MTZ series?

Evaporation temperature range covers -25°C to +15°C. Minimum ambient operating temperature is -35°C; maximum is 50°C. The MTZ series is designed specifically for medium-to-high-temperature evaporation applications.

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