Destined use, intended and unintended uses
Keyfrost’s refrigerating equipment is classed as food and agricultural machinery (MACHINES DIRECTIVE 2006/42/EC), destined for the
treatment of food products.
The machine is designed for the conservation of foods and/or “fresh” products at temperatures indicated in annexes.
It has been designed to work in ambient temperatures from 0°C a +43°C (class T).
It has been designed to maintain a set temperature in a refrigerated cold room suitable for such uses.
The machine is not designed for use in cold rooms situated outside.
The machine is not designed for installation and use in an environment where there is risk of explosion.
Any use other than that permitted shall be considered improper, and in this case the Manufacturer will decline all liability.
The machine is not designed for the conservation of products, which produce corrosive substances.
Use of ultra-low GWP refrigerants
The new range of Keyfrost machines includes the use of brand new ultra-low GWP refrigerants. With a GWP of only 146, the R455A stands as the definitive solution for the future of commercial and industrial refrigeration for low and medium temperatures.
After several tests and studies based on the entire cold chain, it has been demonstrated that the TEWI of machines operating at R455A is also more favorable thanks to the coolant COP but also to the ease of management of machines that do not involve particular complications for the user compared to older machines at R404A.
Safety
The refrigerant used is composed of a slightly flammable azeotropic mixture (A2L according to ISO 817). However, the use of R455A is made safe (in compliance with the main safety regulations) thanks to the particular flammability properties of the refrigerant including:
a) Relatively high lower flammability limit of ’11.8% (LFL);
b) Relatively low upper flammability limit compared to the lower flammability limit 12.9% (UFL);
c) Minimum ignition energy greater than 1000 times that of propane;
d) Flame propagation speed less than 1.5cm/s.
Keyfrost monoblocks are designed, built and distributed according to the relevant current regulations and regulations.
In particular, the entire range respects, where relevant:
a) The maximum charge limit imposed on machines using A2L refrigerants according to EN 378-1, without having to take into account the reference volume, the type of application, the access class of the application and particular safety precautions due to the nature of the refrigerant itself;
b) Design of the refrigeration system according to EN 378;
c) The PED directive with maximum classification 2;
d) The F-GAS regulation;
e) The legislation on the electrical equipment of machines EN 60204-1
f) The Machinery Directive (2006/42/EC);
g) EC Regulation No. 765/2008;
Eco-friendly vision
The new Keyfrost machines are characterized by their eco-compatibility: from the design phase to the decommissioning phase of the machines.
● The design aims for energy efficiency.
● Production aims for minimal material waste.
● Thanks to protection and security devices,
the machine aims for maximum durability.
● Most of the machine was decommissioned
components are recoverable and recyclable.
Compact systems
The new machine range aims not only to limit waste but also to make thermodynamic systems as compact as possible without sacrificing efficiency and reliability. Compactness also ensures less use of coolant, thus limiting the impact of machines on our planet.
Wide choice of options
The machines can be customizable according to their intended use and a number of basic options are made available such as material treatment against corrosion, microport, water condensation, tropicalized versions, acoustic siren etc.
Split systems are supplied without refrigerant charge. Machines must be installed by qualified technical personnel
Following the main national and regional standards, R455A refrigerant is classified as A2L (slightly flammable) and as such has maximum permissible charge limits. Refer to EN 378 part 1 and/or local regulations. As an example, the graph showing the maximum charge of a system classified as Access Class II b is shown. Cibin srl does not assume responsibility for non-compliance with these limits.
• Hermetic compressor *
• A2L system
• Semi-hermetic compressor *
• Anti-vibration compressor brackets
• Vibration-cushioned suction and discharge piping of the
compressor
• Crankcase resistance
• Air condensation
• Sound-absorbing body coating
• Galvanized powder coated sheet steel body
• Evaporator body of aluminium-magnesium alloy
• Evaporator of copper pipes and aluminium fins
• Condenser of copper pipes and aluminium fins
• Automatic restarting low pressure switch
• Automatic restarting high pressure switch
• Axial fan
• Safety valve *
• Condenser fans protection
• Thermic compressor protection
• Thermic compressor protection with motor protection *
• Electronic expansion valve
• FGT 800 electronic control board
• Condenser fan control 0-10*
• Dehydrator filter
• Liquid gas solenoid valve
• Liquid receiver
• Sight glass
• Suction pipe stop cock
• Liquid gas pipe stop cock
• Automatic electric defrosting
• Compressor stop in idling
• High and low pressure ¼” pipe plugs
• Condensation outlet resistor (only for low temperature models)
• Main disconnector
• Cold room ceiling light
• Ambient temperature probe
• Defrosting end temperature probe
• Condensation control temperature probe
• Connecting cable for door micro switch to turn off the system and
to turn on the light at door opening
• Transformer
• Digital display with temperature indicator at one decimal
• On/Off switch
• Cold room light switch
• Running state display: cold – defrosting – evaporator fans – alarm
status
• Programming keys
• Alarm display
• Manual defrosting key
• High temperature alarm
• Low temperature alarm
• High temperature alarm dirty condenser
• Low temperature alarm condenser
• Open door alarm
• High pressure alarm
• Low pressure alarm
• Defrosting end alarm because of time-out
• Alarm ambient temperature probe defect
• Alarm defrosting end temperature probe defect
• Alarm condensation control temperature probe defect
• Timer emergency running in case of these events:
– Ambient temperature probe defect
– Defrosting end temperature probe defect
– Condensation control temperature probe defect
– Cold room door open (if there is door micro switch)
• Installation possibility of a second remote control as slave
• Pre-set connection for Frigotel supervision
Micro door
Water condensation with liquid receiver. Pressure-static regulator valve.
Attacks from ½”
Different voltage
Tropicalized version
Speed controller fans condenser
Heated electrical panel
Machine stop voltage monitor in case of incorrect power supply
Long distance option for keyboard control at a distance greater than 15 meters
Acoustic siren equipped with flashing to display the alarm status
Electrical panel for management and rotation
of two machines on the same cell
Additional remote command to use as a slave
Electronic module for connection to the Frigotel supervision system
Evaporator with cataphoresis painting
Capacitor with cataphoresis painting
Soundproof version
KS R455A N 50Hz
| Code | Model | Power supply | Capacity Watt | Technical sheet (Register for download) |
|---|---|---|---|---|
| 111108700 | KS 07NE G1 | 230/1/50 | 816 | |
| 111108701 | KS 11NE G1 | 230/1/50 | 1323 | |
| 111108702 | KS 13NE G1 | 230/1/50 | 1562 | |
| 111108703 | KS 21NE G1 | 230/1/50 | 1701 | |
| 111108704 | KS 24NE G1 | 230/1/50 | 2089 | |
| 111108712 | KS 24NE G1 | 400/3/50 | 2635 | |
| 111108705 | KS 32NE G1 | 400/3/50 | 3716 | |
| 111108706 | KS 35NE G1 | 400/3/50 | 3625 | |
| 111108707 | KS 49NE G1 | 400/3/50 | 4005 | |
| 111108708 | KS 61NS G1 | 400/3/50 | 5824 | |
| 111108712 | KS 88NS G1 | 400/3/50 | 2635 | |
| 111108710 | KS 100NS G1 | 400/3/50 | 9623 | |
| 111108711 | KS 130NS G1 | 400/3/50 | 11694 |
N= * :Te= -10°C ; Tcond= + 40°C
B= * : Te= -30°C / Tcond= +40°C
KS MULTIGAS B 50Hz
| Code | Model | Power supply | Capacity Watt | Technical sheet (Register for download) |
|---|---|---|---|---|
| 111108720 | KS 07BE G1 | 230/1/50 | 761 | |
| 111108721 | KS 09BE G1 | 230/1/50 | 999 | |
| 111108722 | KS 14BE G1 | 230/1/50 | 1442 | |
| 111108723 | KS 14BE G1 | 400/3/50 | 1458 | |
| 111108724 | KS 18BE G1 | 230/1/50 | 2151 | |
| 111108725 | KS 18BE G1 | 400/3/50 | 2101 | |
| 111108726 | KS 27BE G1 | 400/3/50 | 2203 | |
| 111108727 | KS 39BS G1 | 400/3/50 | 3327 | |
| 111108728 | KS 48 BS G1 | 400/3/50 | 4711 | |
| 111108729 | KS 57BS G1 | 400/3/50 | 5355 | |
| 111108730 | KS 80BS G1 | 400/3/50 | 7816 | |
| 111108731 | KS 110BS G1 | 400/3/50 | 9470 |
N= * :Te= -10°C ; Tcond= + 40°C
B= * : Te= -30°C / Tcond= +40°C
