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Mitsubishi Heavy Outdoor Unit SRC35ZS-W2 – 3.5 kW Inverter, R32, for 1 Indoor Unit, approx. 35–40 m²

The Mitsubishi Heavy SRC35ZS-W2 is a compact and highly efficient single-split outdoor unit from the ZS series with 3.5 kW cooling capacity and 4.0 kW heating capacity, designed for rooms of approx. 35–40 m². The integrated DC inverter compressor ensures energy-efficient operation at class A++ (SEER 8.4 / SCOP 4.7) using the eco-friendly refrigerant R32 (GWP 675). Heating operates reliably down to −15 °C. Silent Mode from 44/45 dB(A). 

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Size chart
Women's clothing size
SizeXSSML
Euro 32/34 36 38 40
USA 0/2 4 6 8
Bust(in) 31-32 33 34 36
Bust(cm) 80.5-82.5 84.5 87 92
Waist(in) 24-25 26 27 29
Waist(cm) 62.5-64.5 66.5 69 74
Hips(in) 34-35 36 37 39
Hips(cm) 87.5-89.5 91.5 94 99
How To Measure Your Bust

With your arms relaxed at your sides, measure around the fullest part of your chest.

How To Measure Your Waist

Measure around the narrowest part of your natural waist, generally around the belly button. To ensure a comfortable fit, keep one finger between the measuring tape and your body.

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Description

Mitsubishi Heavy SRC35ZS-W2 – Outdoor Unit 3.5 kW for Single-Split Systems

The SRC35ZS-W2 is a compact and highly efficient inverter outdoor unit from Mitsubishi Heavy Industries' proven ZS series. With 3.5 kW cooling capacity, it is ideal for rooms of approx. 35–40 m² and provides energy-efficient year-round cooling and heating as an air-to-air heat pump – even at outdoor temperatures down to −15 °C.

Cooling Capacity ❄️
3.5 kW
Operating range 0.9–4.0 kW
Heating Capacity 🔥
4.0 kW
down to −15 °C outdoor temperature
Energy Efficiency ⚡
A++
SEER 8.4 / SCOP 4.7
Refrigerant 🌿
R32
GWP 675 | 0.78 kg

Maximum Efficiency Through DC Inverter Technology

The DC inverter compressor in the SRC35ZS-W2 continuously adjusts its speed to match actual demand. Rather than switching on and off repeatedly, the unit runs at the most energy-efficient level at all times — resulting in noticeably lower electricity costs, consistently comfortable room temperatures, and a significantly extended service life. In cooling mode, the SRC35ZS-W2 achieves efficiency class A++ (SEER 8.4) and in heating mode likewise A++ (SCOP 4.7).

Reliable Year-Round Operation – Down to −15 °C

The SRC35ZS-W2 is designed for heating operation down to −15 °C outdoor temperature. The integrated automatic defrost control and regulated DC fan motor ensure stable operation even in winter conditions. The switchable Silent Mode reduces the sound pressure level to 45/44 dB(A) — ideal for quiet evening hours or noise-sensitive environments.

Technical Highlights at a Glance

  • Cooling capacity: 3.5 kW (range 0.9–4.0 kW)
  • Heating capacity: 4.0 kW (range 0.9–5.0 kW)
  • Energy class cooling/heating: A++ / A++ (SEER 8.4 / SCOP 4.7)
  • Refrigerant: R32 (GWP 675), 0.78 kg pre-charged (up to 15 m)
  • Sound pressure level: 50/48 dB(A) | Silent Mode: 45/44 dB(A)
  • Heating operation range: −15 to +21 °C outdoor temperature
  • Dimensions (H×W×D): 540 × 842 × 290 mm | Weight: 34.5 kg
  • Power supply: 220–240 V / 1Ph / 50 Hz at outdoor unit

Single-Split System for One Indoor Unit

The SRC35ZS-W2 is designed as a single outdoor unit for exactly one compatible indoor unit — no indoor unit is included in the delivery. Compatible indoor units from the ZS series (e.g. wall unit SRK35ZS-WF with 3.5 kW and WiFi) are available separately. The electrical connection is 4-wire; power supply at the outdoor unit. Refrigerant lines are not included and must be sourced separately.

✓ Delivery Contents: Outdoor Unit Only

Indoor unit, refrigerant lines and installation material are not included and must be ordered separately. We are happy to advise on suitable combinations.

⚠ Important: Certified Installer Required

Installation and commissioning must be carried out exclusively by a certified refrigeration engineer (EU Regulation 2024/573). Please provide proof of a certified installer at the time of purchase.

Interested in the SRC35ZS-W2?

Ask us about matching indoor units, installation accessories and certified installer recommendations in your area.

Frequently Asked Questions (FAQ)

What room size is the SRC35ZS-W2 suitable for?

With 3.5 kW cooling capacity, the SRC35ZS-W2 is designed for rooms of approx. 35–40 m². Actual suitability depends on ceiling height, insulation, sun exposure and usage profile. A precise assessment should be carried out by a qualified installer.

Which indoor units are compatible?

The SRC35ZS-W2 is designed for compatible indoor units from the ZS series by Mitsubishi Heavy, e.g. wall unit SRK35ZS-WF (3.5 kW, with WiFi). Please check the current compatibility list from Mitsubishi Heavy Industries or contact us directly before purchase.

What refrigerant does the unit use?

The SRC35ZS-W2 uses refrigerant R32 with a GWP value of 675 — significantly more climate-friendly than the older R410A. The unit comes pre-charged with 0.78 kg R32, covering pipe lengths up to 15 m.

How quiet is the outdoor unit in operation?

During normal operation, the sound pressure level is 50 dB(A) (cooling) and 48 dB(A) (heating). With Silent Mode activated, levels drop to 45 and 44 dB(A) respectively. Silent Mode can be activated on a timer via the indoor unit remote control.

Is the unit suitable for winter heating?

Yes. The SRC35ZS-W2 is designed for heating down to −15 °C outdoor temperature. The automatic defrost control ensures reliable operation even in frosty conditions.

Is the unit eligible for BAFA or KfW subsidies?

The SRC35ZS-W2 is generally eligible for BAFA/KfW subsidies and is SG Ready capable — the latter with the optional network service adapter SC-BIKN2-E as an accessory. The specific subsidy conditions must be verified on a case-by-case basis by an energy consultant or professional installer.

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Product Details
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Data sheet

Brand
Mitsubishi Heavy
Manufacturer
Mitsubishi Heavy Industries
Model
SRC35ZS-W2
Article Number / Reference
SRC35ZS-W2
Product Series
ZS-Serie
Product Type
Außengerät Single-Split
Gas Line Connection
1 x 3/8" (9,52 mm)
Device Type
Außengerät
Mounting Type
Außenwand / Dach / Terrasse
Recommended Room Size (m²)
ca. 35–40 m²
Cooling Capacity (kW)
3,5 kW
Cooling Capacity Min (kW)
0,9 kW
Energy Efficiency Class Heating
A++
SEER
8,4
SCOP
4,7
Refrigerant
R32
Pre-Filled Refrigerant Charge (kg)
0,78 kg
GWP Value
675
Liquid Line Connection
1 x 1/4" (6,35 mm)
Maximum Pipe Length (m)
20 m
Maximum Height Difference (m)
10 m
Pre-Filled Pipe Length (m)
15 m
Outdoor Unit Sound Pressure Level (dB(A))
50 / 48 dB(A)
Indoor Unit Sound Power Level (dB(A))
61 / 61 dB(A)
Silent Mode Sound Pressure Level (dB(A))
45 / 44 dB(A)
Outdoor Unit Dimensions H×W×D (mm)
540 x 842 x 290 mm
Outdoor Unit Weight (kg)
34,5 kg
Night Mode / Silent Mode
Ja, zeitgesteuert via Fernbedienung
Operating Temperature Heating (°C)
-15 bis +21 °C
System Type
Single-Split
Application Area
Wohnung / Büro / Gewerbe
Colour
Weiß / Silbergrau
Scope of Delivery
Nur Außengerät (kein Innengerät, keine Leitungen)
Number of Connectable Indoor Units
1
Compatible Indoor Units
SRK35ZS-WF (3,5 kW Wandgerät, WiFi)
Cooling Capacity Max (kW)
4,0 kW
Heating Capacity (kW)
4,0 kW
Heating Capacity Min (kW)
0,9 kW
Energy Efficiency Class Cooling
A++
Power Supply
220–240 V / 1Ph / 50 Hz
Power Input Cooling (kW)
0,89 kW (0,17–1,24 kW)
Power Input Heating (kW)
0,94 kW (0,19–1,45 kW)
Circuit Breaker (A)
16 A

Specific References

MPN
SRC35ZS-W2
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