The Bosch Multi Split Set combines two indoor units with a single outdoor unit and delivers 5.3 kW of cooling and 5.6 kW of heating capacity. Each of the two indoor units is rated at 3.5 kW of cooling and 3.8 kW of heating capacity. The energy efficiency class is A++ for cooling and A+ for heating on the A+++ to D scale. Heating operation is rated down to an outdoor temperature of minus 15 °C. Each of the two indoor units is suitable as a guide for rooms measuring approximately 27 to 35 m²^*.

Performance and range of application

The Bosch CL5000M 53/2 E outdoor unit is rated at 5.3 kW of cooling and 5.6 kW of heating capacity. The two Bosch CL3000iU W 35 E indoor units are rated at 3.5 kW of cooling and 3.8 kW of heating capacity each. Cooling operation is rated for outdoor temperatures from minus 15 to plus 50 °C, and heating operation from minus 15 to plus 24 °C. The pipe connections on the outdoor unit have 1/4" on the liquid side and 3/8" on the gas side, per connection.

The stated area of approximately 27 to 35 m²^* per indoor unit is a guideline for standard room height and normal insulation standards, not a binding design. Which power class is right for your property depends on room height, insulation standards, window areas, shading, as well as the number of people and devices. With a multi split system, the two indoor units also share the capacity of the outdoor unit. An undersized system will run continuously at full load, while an oversized system will cycle and consume electricity unnecessarily. We can check the appropriate design for your property upon request.

* Guideline based on the cooling capacity specified by the manufacturer, with a standard room height of approximately 2.5 m, normal insulation standards, and average solar radiation. Different conditions on site, such as large window areas, sloped roofs, or a high number of people, may require a different power class. The binding design is carried out on a property-specific basis. For a professional design of your property, please contact us.

The most important advantages at a glance

• Two indoor units on one outdoor unit, meaning one outdoor unit and one set of wall penetrations instead of two.
• 5.3 kW cooling and 5.6 kW heating capacity at the outdoor unit, 3.5 kW and 3.8 kW at each indoor unit.
• Energy efficiency class A++ for cooling and A+ for heating on the A+++ to D scale, with SEER 6.1 and SCOP 4.0.
• Heating operation down to minus 15 °C, cooling operation up to plus 50 °C outdoor temperature.
• 22 dB(A) at the indoor unit on the lowest of the three settings.
• Indoor unit with a 200 mm installation depth at 802 mm wide and 8.7 kg.
• 40 m line length for the system, 25 m to a single indoor unit.

Functions in detail

Multi Split Principle

Two indoor units are connected to a single outdoor unit and share its capacity. The outdoor unit is rated at 5.3 kW cooling capacity, and the two indoor units at 3.5 kW each. The sum of the indoor units thus exceeds the capacity of the outdoor unit. This is intended with multi split systems: the design assumes that both indoor units do not continuously run at full load at the same time. If both run simultaneously, the outdoor unit distributes its capacity between the two refrigerant circuits.

For installation, this means: one outdoor unit, one location, one electrical supply. A separate line runs from each indoor unit to the outdoor unit, so two sets of lines are required.

Air quality and purification

• Air filter in each indoor unit
• Ionizer in each indoor unit

Operating modes

• Cooling operation from minus 15 to plus 50 °C outdoor temperature
• Heating operation from minus 15 to plus 24 °C outdoor temperature
• Three fan settings on the indoor unit

Control and comfort

• Two remote controls included, one for each indoor unit
• HomeCom Easy App, for which an additional module is required, which is not included in the delivery
• Air distribution in three directions, with automatic movement of the louvers
• Automatic setting of the air outlet on the indoor unit

Operational safety

• Corrosion protection on the outdoor unit
• Two separate refrigerant circuits, one for each indoor unit

Scope of delivery

Included in the standard scope:

• 1x Bosch CL5000M 53/2 E outdoor unit, 5.3 kW cooling capacity
• 2x Bosch CL3000iU W 35 E indoor unit, 3.5 kW cooling capacity each
• 2x remote control, one for each indoor unit

What you need additionally

• Pipes and installation material for two indoor units, not one
• Wall mount or floor console for the outdoor unit
• Additional module for the HomeCom Easy App, if you wish to operate the system via smartphone
• Condensate pump, depending on the installation situation
• Electrical supply and protection
• Installation and commissioning by a specialist company

Technical data

Indoor unit

Model	2x Bosch CL3000iU W 35 E
Cooling capacity per indoor unit	3.5 kW
Heating capacity per indoor unit	3.8 kW
Sound pressure level indoor unit	22 / 32 / 37 dB(A), low / medium / high
Dimensions indoor unit (WxHxD)	802 x 295 x 200 mm, 8.7 kg
Features	Air filter, ionizer, three fan settings, remote control

Outdoor unit

Model	Bosch CL5000M 53/2 E
Cooling capacity	5.3 kW
Heating capacity	5.6 kW
Sound pressure level outdoor unit	54 dB(A)
Dimensions outdoor unit (WxHxD)	800 x 554 x 330 mm, 35.0 kg
Connections for indoor units	2

System

Energy efficiency class Cooling / Heating	A++ / A+, scale A+++ to D
SEER / SCOP	6.1 / 4.0
Pipe connections Liquid + Gas per connection	6.35 mm (1/4") + 9.52 mm (3/8")
Max. line length system	40 m
Max. line length per indoor unit	25 m
Max. height difference outdoor unit above indoor unit	10 m
Max. height difference outdoor unit below indoor unit	15 m
Max. height difference between the indoor units	10 m
Cooling operating range	-15 to +50 °C
Heating operating range	-15 to +24 °C
Power supply	220 to 240 V, 50 Hz, 1 phase
Control	2x remote control, HomeCom Easy App with additional module

Frequently Asked Questions

What cooling and heating capacity does the set deliver?

The set delivers 5.3 kW of cooling and 5.6 kW of heating capacity at the outdoor unit. Each of the two indoor units is rated at 3.5 kW of cooling and 3.8 kW of heating capacity. The energy efficiency class is A++ for cooling and A+ for heating on the A+++ to D scale, with a SEER of 6.1 and an SCOP of 4.0.

How do two indoor units on one outdoor unit work?

Two indoor units are connected to a single outdoor unit and share its capacity. The outdoor unit is rated at 5.3 kW cooling capacity, and the two indoor units at 3.5 kW each. The sum of the indoor units thus exceeds the capacity of the outdoor unit. This is intended with multi split systems: the design assumes that both indoor units do not continuously run at full load at the same time. If both run simultaneously, the outdoor unit distributes its capacity between the two refrigerant circuits.

What happens if both indoor units run at the same time?

Then the outdoor unit distributes its 5.3 kW cooling capacity between both indoor units. Each individual indoor unit can draw its rated 3.5 kW as long as the second one does not request full capacity at the same time. With staggered operation, such as the living room during the day and the bedroom in the evening, each indoor unit has the full capacity available. We can check which design is right for your two rooms upon request.

Can the indoor units be different sizes?

This set is delivered in the stated combination: two indoor units with 3.5 kW each. Another combination of indoor units is not part of this offer. Whether and in what combination other power classes are possible with this outdoor unit, we clarify on a property-specific basis upon request.

How many indoor units are included in the delivery?

Two. The delivery exclusively includes one Bosch CL5000M 53/2 E outdoor unit, two Bosch CL3000iU W 35 E indoor units, and two remote controls. Installation material, refrigerant lines, and mounting bracket are not included.

Is an installation set required for each indoor unit?

Yes. With a multi split system, a separate line runs from each indoor unit to the outdoor unit, so two sets of lines are required, not one. Both connections on the outdoor unit are rated at 1/4" on the liquid side and 3/8" on the gas side. Installation material is not included in this offer and is selected by the specialist company to suit the installation situation.

Can I control the system via an app?

Operation via smartphone is done through the HomeCom Easy App. For this, an additional module is required, which is not included in the delivery. We will provide you with the exact designation of the module upon request. Two remote controls are included, one for each indoor unit.

How far apart can the indoor and outdoor units be?

For the entire system, a line length of 40 m is stated, and 25 m for the distance to a single indoor unit. The height difference between the outdoor and indoor unit is stated as 10 m when the outdoor unit is higher, and 15 m when it is lower. Between the two indoor units, a height difference of 10 m is stated. The specialist company assesses the total distance on site.

Can I heat with the unit in winter?

Heating operation is rated for outdoor temperatures from minus 15 to plus 24 °C, and cooling operation from minus 15 to plus 50 °C. In heating operation, the system is in energy efficiency class A+ on the A+++ to D scale, with an SCOP of 4.0. Whether the system is sufficient as the sole heating for your rooms, we check upon request.

How loud is the unit?

For the indoor unit, three settings of 22, 32, and 37 dB(A) are stated. For the outdoor unit, 54 dB(A) is stated. We will provide you with the assignment of the values to cooling and heating operation upon request.

Can I install the air conditioner myself?

The installation and commissioning of a multi split air conditioner is carried out by a certified specialist company. Self-installation is not intended. The outdoor unit weighs 35.0 kg; the load-bearing capacity of the wall and the appropriate mounting bracket are assessed by the specialist company on site.