scm frigo’s co2 line - r744 brochure.pdf · scm frigo’s co2 line ... electronic regulation by...

scmfrigo.com CO2 Applications

SCM FRIGO’S CO2 line

SCM Frigo has developed the most comprehensive range of CO2 units in the market for commercial and industrial application, becoming LEADER on the European market:

• Low temperature compressor pack, with subcritical cycle.

• COMBI system (HFC - CO2), with cascade concept.

• Transcritical Booster system and Transcritical brine chillers.

• CO2 pump stations MT & LT.

UMCE LINE: LT packs with subcritical cycle

The UMCE line includes models with 2, 3 or 4 compressors in parallel, with cooling capacity from 5 to 260 kW @ -35°C/-5°C. Condensation with ethylene/propylene glycol or in alternative direct expansion with HFC and electronic expansion valve (EEV installed on the PHE condenser). Electronic regulation by controller PCO2 (Carel), AK PC (Danfoss) or XC1015 (Dixell). Bitzer or Dorin compressor range available. Predisposition for connecting a cooling system on the liquid receiver for protection against prolonged stops. Two versions available: STD version with MWP 45 bar in HP, 30 bar in LP. HP version with MWP 52 bar in HP, 30 bar in LP.

Unit Model Qo (-35/-5°C) Pe I max

Nc m3/h kW kW A

UMCE 2x007 BT 2 1,62 5,44 1,42 5,0

UMCE 2X010 BT 2 2,71 9,10 2,34 7,0

UMCE 2x020 BT 2 3,48 11,96 3,04 9,2

UMCE 2x030 BT 2 4,34 15,20 3,82 12,0

UMCE 3x020 BT 3 3,48 17,94 4,56 13,8

UMCE 3x030 BT 3 4,34 22,80 5,73 18,0

UMCE 3x035 BT 3 5,05 27,21 6,69 20,4

UMCE 3x040 BT 3 6,36 35,01 8,55 25,8

UMCE 3x050 BT 3 9,22 53,10 12,03 33,9

UMCE 3x070 BT 3 12,40 67,50 15,63 47,1

UMCE 3x090 BT 3 15,60 85,50 19,80 56,7

UMCE 3X100 BT 3 18,40 101,70 23,49 66,0

UMCE 3x120 BT 3 22,30 123,90 28,53 80,1

UMCE 3x150 BT 3 28,90 159,00 36,42 100,5

UMCE 4X050 BT 4 9,22 70,80 16,04 45,2

UMCE 4x070 BT 4 12,40 90,00 20,84 62,8

UMCE 4x090 BT 4 15,60 114,00 26,40 75,6

UMCE 4x100 BT 4 18,40 135,60 31,32 88,0

UMCE 4X120 BT 4 22,30 165,20 38,04 106,8

UMCE 4x150 BT 4 28,90 212,00 48,56 134,0

UMCE 4x200 BT 4 34,40 254,00 58,00 160,0

Complete range of CO2 std racks for low Temperature application


COMBI system with cascade concept

The Combi line consist in a complete packages for refrigeration with cascade concept operating with HFC for the MT side and CO2 for the MT and / or LT side. Electronic regulation by controller PCO3 (Carel) or AK PC (Danfoss).

There are 3 possible solutions in our STD range:

HFC MT pack (R134a/R407F/R404a) DX,

LT pack CO2 DX

MT Brine Chiller (-4/-8°C) with low HFC

charge, LT pack CO2 DX

MT CO2 pumping (critical charge HFC

pack), LT pack CO2 DX

Combi pack - R134a DX in MT(60 kW @-7°C/+45°C), CO2 pack DX in LT (27 kW @-35°C/-2°C)


Transcritical Booster systems Description

SCM Frigo has developed the booster line that consists of a combination of a Transcritical pack MWT MTDX and a subcritical pack UMCE BT connected in a common refrigerant circuit. To design the Transcritical Line SCM FRIGO SpA has involved the University of Padova.

Transcritical booster unit – indoor installation (200 kW LT - 60 kW MT @ -35°C/-10°C/35 °C/90bar)

Technical specifications

• Up to 8 medium temperature compressors in parallel

• Up to 4 low temperature compressors in parallel

• Bitzer or Dorin compressors range available.

• Possibility to install leading compressor under the inverter (for both MT and LT)

• Optimized COP of the unit by using dedicated pack and valves controllers

• Heat recovery management

• Possibility to have closed frame for outdoor installations

• Safety condensing unit for back up

• PS HP 120 bar; PS MP 45 bar; PS LPMT 40 bar ; PS LPLT 30 bar (STD VERSION)

• PS HP 120 bar; PS MP 60 bar; PS LPMT 52 bar ; PS LPLT 30 bar (HIGH PRESSURE VERSION)


Advantages

• Zero environmental impact

• High COP (depending on average yearly ambient temperature)

• Possibility to find the best technical solution in SMKT applications due to the high number of possible

combinations

Transcritical booster line (Bitzer)


Outdoor STD Booster plant

Transcritical pack and Transcritical Chiller

Technical specifications

• Up to 8 compressors in parallel. • Bitzer or Dorin compressors range available. • Possibility to install leading compressor under the inverter (for both MT and LT) • Optimized COP of the unit by using dedicated pack and valve controller • Heat recovery management • Possibility to have closed frame for outdoor installations PHE for Heat recover as optional. • PHE evaporator for Chiller application. • Safety condensing unit for back up • PS HP 120 bar; PS MP 45 bar; PS LPMT 40 bar ; PS LPLT 30 bar (STD VERSION) • PS HP 120 bar; PS MP 60 bar; PS LPMT 52 bar ; PS LPLT 30 bar (HIGH PRESSURE

VERSION)

CO2 Transcritical MT unit (410 kW @-6°C/30 °C/ 80 bar)


CO2 pumping stations

SCM FRIGO SpA. has developed a full range of CO2 pumping stations, to be coupled with HFC, CO2 or NH3

units that include MT applications, LT applications and Blast Freezers.

Technical specifications MT CO2 pump station

• Capacity range from 30kW up to 350kW

• Insulated CO2 vessel with internal volume up to 1200 lt

• Double CO2 pump, 1 running and 1 std by, automatic rotation

• Max and minimum level control, possibility to have continuous control

• MWP (HP/LP) 40 bar / 30 bar (special execution on request)

• Optional emergency condensing unit for back up

MT pump stations can be combined with CO2, NH3 or HFC MT unit. As an option they can be built with

subcritical compressor pack on the same frame for LT DX users.

CO2 pump station MT (220 kW @-5°C) integrated with direct expansion LT CO2 unit (50kW @-35°C)


Technical specifications LT CO2 pump station

• Capacity range from 20kW up to 260kW

• Insulated CO2 vessel with internal volume up to 2300 lt

• Double CO2 pump, 1 running and 1 std by, automatic rotation

• Max and minimum level control, possibility to have continuous control

• MWP (HP/LP) 40 bar / 30 bar (special execution on request)

• Optional emergency condensing unit for prolonged stops

Advantages:

High efficiency of heat exchange thanks to excellent thermal properties of CO2 and to flooded evaporators

• Smaller pipes diameter (lower costs) with respect to HFC or Glycol

• Safety in case of power shortage (keeping cool the liquid receiver keeps under control the whole

installation)

LTpump station (2300 liter CO2 tank @ -35°C)


CO2 LT unit (330 kW @-35°C/-3°C)

CO2 Pumps


CO2 References

SCM Frigo has more than 300 Transcritical plants running with booster system concept.

They are in Denmark (NETTO, FØTEX, COOP), in UK (Sainsbury’s) and also in Sweden (NETTO, COOP, IKA maxi), France, Belgium, Luxembourg (Delahize), Estonia.

Outdoor STD Booster with GAS COOLER - supermarket (UK)

Indoor CO2 Booster Supermarket –Denmark - Sweeden Indoor CO2 booster Supermarket - Norway

Furthermore SCM has more than 300 Subcritical plants and approx 50 CO2 pumping stations running. Especially in Denmark (NETTO), in Sweden (ICA & COOP), France (LECLERC, BRAKE, SUPER U), Belgium

(Delahize), Norway (ICA MAXI, REMA 1000, COOP), Luxembourg (Delahize), Austria, Estonia.

Indoor cascade R134a/CO2 Supermarket-France Indoor cascade R407F/CO2 pump MT/ dx LT - France


scmfrigo.com REV 06/2012

scm frigo’s co2 line - r744 brochure.pdf · scm frigo’s co2 line ... electronic regulation by...

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