R290 inverter monobloc cooling unit for cold rooms (+2°C) and deep-freeze rooms (-18°C), up to 12 m³ / 6 m³ | BYGY-010-QXD-RZPP

The BYGY-010-QXD-RZPP is a wall-mounted inverter monoblock cooling unit for small cooling and deep-freeze rooms. It is designed for both normal cold and deep cold applications and is therefore suitable for cold around +2 °C as well as low temperature applications around −18 °C - depending on room size and real operating conditions.

The system uses the natural refrigerant R290 and an integrated variable-speed compressor control to adapt the cooling capacity to the actual load. This improves temperature stability, reduces energy consumption and ensures quieter, more efficient operation in the partial load range. The control concept includes compressor frequency control, electronic expansion valve control, condenser and evaporator fan control, defrost control, pressure protection, exhaust gas temperature protection and error code output.

Since the complete cooling system is integrated in a compact housing, installation is significantly simplified. The unit is mounted directly through the cold room panel and only requires correct mounting, insulation and electrical connection.

Typical applications

• Cooling cabinets for fresh produce
• Freezer cabinets for frozen products
• Catering cold rooms< li="">
• Farm shop/farmshop cold rooms
• Catering cold rooms
• Small commercial walk-in cold rooms
• Laboratory cold rooms
•  

Use as refrigeration and deep-freeze system: This unit is suitable for both normal refrigeration and deep-freeze.

Practical guide values for room temperatures

• Cool room application: up to approx. 12 m³ at approx. +2 °C
• Deep-freeze application: up to approx. 6 m³ at approx. −18 °C

Correlation between evaporation temperature / room temperature

The technical specification defines an evaporation temperature range of −40 °C to −5 °C. In practice, the evaporation temperature is below room temperature. The following orientation can be used for technical application communication:

TeV approx. −5 °C to −10 °C → typical use for cooling rooms around 0 °C to +5 °C TeV approx. −20 °C to −25 °C → typical use for low temperatures around −18 °C TeV below −25 °C → relevant for shock/low temperature applications

These room temperatures are guide values and depend on product load, insulation, ambient temperature and door openings.

Technical overview

Parameter	Value
Model	BYGY-010-QXD-RZPP
Application	Small cooling and deep-freeze cranes
Coolant	R290
Compressor	Boyard JXSP150Z220
Technology	Variable frequency / inverter
Nominal power consumption	750 W
Mains supply	220 V / 50–60 Hz
Max. Operating current	5.5 A
Evaporation temperature range	−40 °C to −5 °C
Dimensions (L × W × H)	525 × 825 × 705 mm

Source specification: Boyard R290 Wall-Mounted Integrated Frequency Conversion Condensing Unit Specification.

Kälte power

Detailed cooling capacity according to specification sheet

In environment 32 °C and undercooling 0 °C, the data sheet for the BYGY-010-QXD-RZPP model shows the following cooling performance:

Evaporation temperature	Cooling capacity
−40 °C	500 W
−35 °C	630 W
−30 °C	755 W
−25 °C	900 W
−20 °C	1,045 W
−15 °C	1,400 W
−10 °C	1,750 W
−5 °C	1,900 W

Practical comparative values from series overview

• 1,840 W at Te −7 °C / Tc 32 °C
• 900 W at Te −25 °C / Tc 32 °C

Recommended room size

Application	Recommended room volume
Cold room at +2 °C	up to approx. 12 m³
Deep freeze room at −18 °C	up to approx. 6 m³

These values are based on the comparative technical overview of the wall-mounted series. The actual room size depends on insulation, ambient temperature, stored goods, door openings and cooling requirements.

 

Main components and control functions

Kältesystem

• Inverter compressor
• Vaporiser
• Vaporiser
• Electronic expansion valve
• Liquid injection valve
• 4-way valve
• Filter dryer
• Sight glass
• Pressure protection components

Control and protection

The control architecture comprises:

• Compressor frequency control
• Control of the electronic expansion valve
• Vaporiser fan control
• Vaporiser fan control
• Defrost control
• High and low pressure protection
• Sprinkler protection
• Exhaust gas temperature protection
• Current protection
• Output of error codes

The separate controller manual also documents:

Room temperature display Display of the evaporator fans Display of the operating frequency Setting the defrost parameters Alarm and error code functions

Defrosting

The unit supports heat and gas defrosting with additional electrical heating support. According to the specification:

• 4-way valve
• Defrost heating element: 500 W
• Defrost heating tape: 25 W/m, 3 m

The controller manual documents selectable defrost modes, including electric defrost, thermal defrost and air/wind defrost, whereby thermal defrost corresponds to hot gas defrost.

Installation

The unit is designed for wall-mounted installation through the refrigeration panel.

Installation requirements

• Panel thickness of the cold room must be at least 75 mm
• Gap between unit and panel must be filled with foam/foam material
• Sufficient clearance around the plastering area must be ensured
• Mounting and cut-out in the panel must follow the manufacturer's mounting drawing

Dimensions

• Length: 525 mm
• Width: 825 mm
• Height: 705 mm

Packaging dimensions

• 640 × 880 × 855 mm

Important note on the operating range (−10 °C to +43 °C)

The unit is designed for an ambient temperature range of −10 °C to +43 °C. The actual application range can be found in the specification and the controller manual.

Restriction of the intended use

This product is intended for:

• Small commercial refrigeration units
• Cooling and storage facilities for fresh produce
• Deep freezers
• Professional refrigeration applications

It is not presented as a classic household appliance, but as a commercial cold storage solution.

 

FAQ

Can the unit be used for both cold and deep-freeze rooms?

Yes. The unit is suitable for both cold and deep freeze. As a practical guide: up to 12 m³ at +2 °C and up to 6 m³ at −18 °C (depending on the design).

 

Which refrigerant is used?

The unit uses the natural refrigerant R290.

 

Is it an inverter unit?

Yes. The unit uses a speed-controlled compressor control (inverter).

 

Does the unit have an integrated controller?

Yes. The unit has an integrated controller concept with temperature control, defrost parameters, alarm and diagnostic functions.

 

How to install the unit

The unit is installed as a wall-mounted monobloc directly through the cold room panel. The panel thickness must be at least 75 mm and the remaining gap must be filled with insulating material.