ROVSUN Commercial Refrigeration - Upright Chiller & Freezer

General

This appliance features:

• Top brand fully enclosed compressor.
• Advanced refrigeration system with blower for better cold air circulation.
• High-density polyurethane overall foaming for energy saving.
• Fluorine-free and environmentally friendly refrigerant R290.
• Intended for commercial use or similar applications.

Note:

• Electric circuit diagrams and parameters on the product name plate are final if changed.
• Design may be improved without notice.
• If the supply cord is damaged, it must be replaced by the manufacturer, service agent, or similarly qualified persons to avoid a hazard.

WARNING: Refrigerant is facility burning of R290, please protect against fire. ⚠️

Structure and Parts

An exploded view illustration showing the various components of the upright chiller and freezer. Key parts include: cabinet (1), unit support plate (2), the unit guide (3), unit mounting plate (4), compressor (5), start capacitance of compressor (6), the condenser (7), the fan net (8), condensate fan (9), refrigerating compressor starting capacitance (10), water outlet fasteners (11), after the retainer (12), external water box (13), the evaporator (14), frost tube (15), in a water container (16), evaporation fan (17), fan mounting plate (18), wind shell (19), the decorative (20), doors (21), upper hinge (22), bottom hinge (23), the thermostat (24), on the cover plate (25), the lock (26), door gasket (27), castor (28), Jacob's ladder (29), k-shape clip (30), rack (31), capacitance fixing box (32), electrical box (33), circuit board (34), electrical lifted the lid (35), lamp (36), and junction box (37).

Meaning of crossed out wheeled dustbin:

Do not dispose of electrical appliances as unsorted municipal waste. Use separate collection facilities. Contact your local government for information regarding the collection systems available.

If electrical appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwater and get into the food chain, damaging your health and well-being.

When replacing old appliances with new ones, the retailer is legally obligated to take back your old appliance for disposal at least free of charge.

Safety Information

• Handle with care: Unplug the wall socket first. Never tilt it over 45 degrees during handling. ↘️ 45°
• Dry place: Always locate the refrigerator at a dry place. ❌
• Sufficient space: The distance from both sides and back of the refrigerator to the wall or other substance must not be less than 10cm. Insufficient space can decrease refrigeration capability due to poor air circulation. ? 10cm
• Well ventilation: Always locate the refrigerator at a place with fine ventilation. For the first use, wait for 2 hours after handling before plugging in the wall socket and starting it. ?
• Far from heat source: Never place the refrigerator directly under the sunshine. Never locate it nearby any heat source or heater to prevent reduced refrigeration capability. ☀️ ❌ ? ❌
• No heavy load: Never put any heavy load on the top of the refrigerator. ❌
• No hole making: Never make holes on the refrigerator or install other items on it. ❌
• Stable location: To avoid unexpected noise and vibration, unpack and locate the refrigerator on a flat and solid place. ⚖️

Circuit Diagram

Two electrical circuit diagrams are provided, illustrating the wiring and component connections for the refrigeration system. These diagrams show the flow of power and control signals to components such as the compressor, capacitors, thermostat, switches, and display.

Parameters

Principle of Refrigeration System

The principle of compression refrigeration involves four stages: compression, condensation, throttling, and vaporization.

• Compression: The compressor sucks in coolant vapor, which has absorbed heat from the evaporator. This process increases the pressure and temperature of the coolant gas.
• Condensation: The high-pressure, high-temperature gas is then sent to the condenser, where it dissipates heat to the surrounding air and liquefies.
• Throttling: The liquid coolant passes through a capillary tube (or expansion valve), which reduces its pressure and temperature.
• Vaporization: The low-pressure liquid coolant enters the evaporator, where it rapidly boils and vaporizes into gas as the pressure drops. This process absorbs heat from inside the refrigerator, thus cooling the interior.

The cycle repeats continuously to maintain the desired refrigeration temperature.

A schematic illustrating the refrigeration cycle. It shows a drying filter, capillary device, compressor, evaporator, and condenser. Arrows indicate the flow of refrigerant, labeled as high-pressure/high-temperature gas, low-pressure gas, and liquid, moving between these components.

Note:

• The murmur of water heard during operation is normal, as the coolant circulates.
• Condensation on the outside in wet seasons is also normal due to high humidity and can be wiped with a cloth.

Preparation and Power Supply

• Exclusive power socket: Use a dedicated 110-120V, 60Hz single-phase AC power outlet with a three-pin receptacle. ?
• No share on socket: Do not share the socket with other appliances to prevent overheating and fire hazards. ❌
• Protect cables: Never break or damage cables, as this can lead to current leakage and fire. ❌
• No water flushing: Never flush the refrigerator's surface with water, as it can cause current leakage. ❌
• Prevent from flammables and explosive: Do not store flammable or explosive substances (e.g., aerosol cans, ether, gasoline, alcohol) inside or near the refrigerator. ❌
• No spray: Do not spray flammables like paint or coatings near the refrigerator, as it can cause fire. ❌
• After power break: After a power interruption or unplugging, wait at least 5 minutes before plugging in and restarting the refrigerator. ⏱️ 5 minutes
• No medicine: Do not store medicine inside the refrigerator. ❌

Operation and Caution

Part 1:

1. Before use: Plug the refrigerator into an exclusive 110-120V socket. After the unit starts running, check for sufficient cold air at the air suction point before placing food inside.
2. Digital Temperature Controller:

   Image of a digital temperature controller display showing '-8.8'. Buttons are labeled SET, AUX, UP (arrow), DOWN (arrow), and DEF.

   • How to see the set point: Press and release the SET key once to display the target set point. The display will return to normal after about 5 seconds.
   • How to change the setpoint: Press and hold the SET key for over 2 seconds to enter set point adjustment mode. The set value will display, and the "F" LED will blink. Use the UP (▲) or DOWN (▼) arrows to adjust the value. Press the SET key again or wait 10 seconds to save the new set point.
   • How to start a manual defrost: Press and hold the DEF key for over 2 seconds to initiate a manual defrost cycle.
3. Cautions:
   • Minimize door opening time and frequency to maintain internal temperature.
   • Do not block the air suction and outlet vents to ensure proper air circulation and cooling.
   • Avoid overcrowding the refrigerator with food, as it affects cooling efficiency. Adjust rack height for optimal food storage.
   • Allow hot food to cool to room temperature before placing it inside.
   • In case of power outage, minimize door openings to keep the interior cold.
   • Only qualified service personnel should repair damaged power cables using special tools.
   • Do not touch the compressor to avoid burns.

Part 2:

This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction regarding its use by a person responsible for their safety. Children should be supervised to ensure they do not play with the appliance.

Do not store explosive substances, such as aerosol cans with flammable propellants, in this appliance.

During normal operation, the emission noise level does not exceed 70dB(A).

The maximum loading for shelves should not exceed 30kg.

The appliance has a climatic class of 4 and is suggested for use in ambient temperatures between 16°C and 32°C (60.8°F - 89.6°F).

To avoid damage or other problems, do not store corrosive food products in this appliance.

Maintenance

1. Notice:
   • Keep the refrigerator clean and perform regular maintenance.
   • Always unplug the power socket before performing maintenance.
   • Never use a damaged or loose plug/socket to prevent electric shock or short circuits.
   • Never flush the refrigerator with water. Avoid using alkali detergents, soap, gasoline, acetone, or brushes.
2. Clean outside: Use a soft cloth dampened with neutral detergent (like dish soap) to clean the exterior, then wipe dry with a soft cloth.
3. Clean inside: Remove racks and clean them with water.
4. Shut down refrigerator for a long time:
   • Remove all food and unplug the wall socket.
   • Clean the inside and outside thoroughly. Leave the door open for sufficient drying.
   • Glass parts break easily; keep them away from children.
   • Clean and dry the condensate tray.

Trouble Shooting

Contact a local service agent for assistance if simple troubleshooting does not resolve the problem.