UBC Frost Stream Freeze

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Overview

Function Description
Important Technical Specifications
Usage Features
Maintenance Features

This document provides operating instructions for UBC Group refrigerated showcases, specifically models within the "Frost Stream" series, which include "Freeze," "Prima," "Nix," "Victory," "Star," "Aurora," "Storm," "Legend," and "King" variants, as well as "Solid" versions with heat-insulating covers. These showcases are designed for storing frozen products.

Function Description

The refrigerated showcases are designed to maintain specific low temperatures for the storage of frozen goods. They feature a cooling system that uses R-290 (propane) as a refrigerant. The equipment can be controlled via either a mechanical thermostat or an Eliwell electronic temperature controller, depending on the model and desired temperature range. The internal temperature can be monitored through an optional display or an external/internal thermometer. Lids are provided to help maintain the required temperatures and prevent icing, and should be kept closed except during loading and unloading.

Important Technical Specifications

The "Frost Stream" series offers a range of models with varying external dimensions (WxHxD), volumes, and net weights. For example, the "Frost Stream" Freeze has dimensions of 800x910x640 mm, a volume of 202 liters, and a net weight of 47 kg. Larger models like the "Frost Stream" King measure 1640x910x640 mm, with a volume of 519 liters and a net weight of 76 kg. "Flat" models feature a flat glass lid, while "Solid" models have a heat-insulating cover.

The equipment operates within specific climate classes, which are indicated on the rating plate. Ambient temperature for correct operation should not be lower than +16°C and must not exceed the temperature specified for its climate class.

Temperature ranges vary by application:

Standard: -18°C to -23°C (Mechanical thermostat)
"Scooping": -12°C to -18°C (Mechanical thermostat)
Deep freezing: -30°C to -35°C (Electronic controller)

The rating plate, located on the back of the equipment, provides crucial technical data including:

Showcase name
Voltage (V)
Frequency (Hz)
Protection class (IR)
Maximum used power (W)
Climatic class
Net weight (kg)
Refrigerant mass (g)
Refrigerant type (R-290 propane)
Temperature class inside the showcase
Inventory number
Date of manufacture
Serial number
Country of manufacture and certification marks
Product conformity conditions

The equipment is manufactured in accordance with ISO 9001:2015, ISO 1400:2015, and ISO 45001:2018, IDT standards, and complies with EN 16901:2016, as well as EU directives on machines (2006/42/EU), electromagnetic compatibility (2014/30/EU), and low voltage equipment (2014/35/EU).

Usage Features

Installation: The equipment must be installed stably and horizontally. Ventilation holes (grids) must be kept clean, and the equipment should be placed in a well-ventilated area, maintaining a minimum distance of 100mm from walls and other equipment. Direct sunlight, high-temperature radiators, air conditioners, and ventilation ducts should be avoided to prevent increased internal temperatures. Rollers (if present) should be locked after installation. The equipment should only be connected to the electrical network at least one hour after installation, and only if the ambient temperature is at least +16°C.

Temperature Control: For models with a mechanical thermostat, the control knob is located on the side ventilation grill. Settings range from Level 1 (less cold) to Level 9 (coldest), with Level 6 typically being the factory setting. For Eliwell electronic controllers, buttons on the front panel allow for increasing/decreasing values, navigating menus, confirming settings, and accessing standby or programming modes. The "Enter" button is used to display and change the set temperature value.

Loading: Before loading, the internal temperature should be checked two hours after turning on the equipment, and the required storage temperature must be reached. Products should only be loaded up to the designated loading line mark in the middle of the equipment to ensure the specified storage temperature is maintained.

Safety:

Never connect damaged equipment to the mains.
Avoid using multiple outlet blocks or extension cords to prevent thermal overload.
Do not remove protective devices or covers.
Do not make technical changes to the equipment.
Damaged network cables must be replaced by an authorized service technician.
Disconnect the equipment from the network before working with the electrical or cooling system.
Use protective gloves when loading freezers to prevent frostbite and during cleaning due to sharp edges.
Refrigerant R-290 (propane) is extremely flammable. Ensure no ignition sources are nearby in case of leakage.
Liquid refrigerant can cause frostbite on skin.
Ventilation openings must not be covered.
Work with the cooling system circuit is only permitted in well-ventilated rooms by authorized service specialists.

Maintenance Features

Service: The condenser should be cleaned at least once a month. This involves dismantling the protective grilles to access the engine room, removing dust and fluff from the condenser surface, and then reinstalling the grilles. Failure to follow this recommendation may void the manufacturer's responsibility in case of a breakdown.

Defrosting and Cleaning: Defrosting is recommended when the frost layer exceeds 10 mm, as strong icing can reduce productivity and affect temperature readings.

Do not use heaters or sharp objects for defrosting, as this can damage the equipment.
Do not use hot steam, high-pressure, or high-temperature water, as this can damage electrical insulation, electronic parts, and the refrigerant circuit.
Thin layers of frost should be scraped off with the included plastic ice scraper.

Defrosting/Cleaning Process:

Move products to another freezer display.
Disconnect the power cable.
Open the lid for better defrosting.
Remove baskets or partitions.
Remove melted water.
Remove any remaining product.
Wash the equipment with manufacturer-recommended detergents and equipment.
Wipe the device dry.
Replace baskets or partitions.
Reconnect the power cable.
Wait for the required temperature to store products.
Store products again.

Recommended Cleaning Materials:

Detergents: Clean water, soap and water for heavy contamination.
Cleaning area: External and internal surfaces of the equipment, external and internal glass surfaces.
Cleaning supplies: Wet soft cotton fabric, damp absorbent cloth or sponge.
For drying: Wet soft cotton fabric.

Storage (Long-term): If taking the equipment out of operation for a long period:

Remove all goods.
Disconnect the power cable.
Open the lid, allow the equipment to warm to ambient temperature, and clean it.
Leave the lids open (about 2-4 cm) to prevent odors and spore formation.

Do not expose the equipment to direct sunlight with the lid closed during storage, as high internal temperatures can cause damage.

Disposal: Improper disposal harms the environment. The equipment must be disposed of according to national regulations and local disposal partner guidelines, not with household waste. Special attention should be paid to the safe disposal of refrigerant, insulating foam (polyurethane foam), compressor oil, and the power supply unit.

Troubleshooting: In case of malfunction, first check:

If the power cord is plugged into the outlet.
Presence of voltage in the outlet. If the temperature is too high, check:
Thermostat position.
How long the covers were open.
If warm product was stored/loaded.
If there were power outages. If the issue is not resolved, contact the service department and report the malfunction type. Untrained personnel should not perform work on the electrical or cooling system due to risks of electric shock and flammable gases.