maximo - Aircotech

maximo new
air cooled liquid chillers with free-cooling system
91
RCGROUP SpA
cooling capacity
free-cooling
compressors
refrigerant
fan type
microprocessor
19,4 ÷ 185,0 kW
18,9 ÷ 179,0 kW
scroll
R410A
axial / plug-fan
MP.COM
C_GNR_0310

92
MAXIMO
air cooled liquid chillers with free-cooling system
VERSIONS:
maximo
MULTIPLICITY OF VERSIONS
AND COMPONENTS
The wide range of cooling capacity and the available
versions, make possible the use and the combination of
diverse components on the refrigeration and hydraulic
circuits in the MAXIMO Free-Cooling chillers range.
MAXIMO (R410A)
new
Cooling capacity 21,5 ÷ 307,0 kW
Free-cooling capacity 18,4 ÷ 172,0 kW
Free-cooling liquid chiller equipped with scroll
compressors and axial fans.
new
MAXIMO PF (R410A) Plug fan
Cooling capacity 21,0 ÷ 287,0 kW
Free-cooling capacity 17,0 ÷ 158,0 kW
Free-cooling liquid chiller equipped with scroll
compressors and Plug-fans.
The MAXIMO series is a type of liquid chillers equipped
with a built-in additional coil making Free Cooling using
the outdoor air as cooling media.
The free-cooling system installed on these chillers has
been designed and applied by RC GROUP for the first
time in the early 70’s and the today’s series is the result of
more than 40 years experience.
These chillers allow to achieve remarkable energy savings
when installed in cold and temperate climate zones.
MAXIMO PF
Units for installation indoor.
The Plug-fan allow the MAXIMO PF installation also
inside offices with ducted air intake/exhaustion.
The components completeness together with the wide
range of available optional accessories allow very quick
and easy installation operations; the units simply need
electrical and hydraulic connections.
C_GNR_0310
maRCGROUP SpA

MAXIMO
air cooled liquid chillers with free-cooling system
93
MAIN COMPONENTS
• Housing in epoxy painted galvanized steel
sheet.
• Scroll compressors
• Axial fans (MAXIMO)
• Plug fan with EC motor (MAXIMO PF)
• Welded plate evaporator
• Pump-Down stop system
• Proportional free-cooling system
• MP.COM microprocessor control
• Electrical box in separate compartment
• Main switch with door lock safety
MAIN OPTIONAL ACCESSORIES
• Pumping group
• Water tank
• LNO kit for noise reduction
• ELN kit for extreme noise reduction
• Partial heat reclaim
• Water flow safety switch
• Brine kit for glycol solution production with
temperatures down to -12°C.
• Serial port
• Optimizer system
• Glycol-free system
maximo PF
MAXIMO PF - Condenser air discharge
Remove a panel for the condenser air discharge
(as indicated in the picture)
ximo
RCGROUP SpA
C_GNR_0310

94
MAXIMO
air cooled liquid chillers with free-cooling system
TECHNICAL DATA AND NOMINAL PERFORMANCES
new
MAXIMO
single circuit / axial fans
MODEL
Size
Cooling capacity (1)
kW
Free-cooling capacity (2) kW
Compressors n.
Power input (1)
kW
Gas circuits n.
Weight
kg
Sound pressure (3) dB(A)
21 24 28 30 34 40 50 52 58
P1 S P1 S P1 S P1 S P1 S P1 S P1 S P2 S P2 S
C1 C1 C1 C1 C2 C2 C2 C2 C3
19,4 21,8 25,8 28,5 34,1 38,4 47,3 49,1 57,1
18,9 19,9 24,1 25,0 32,3 36,5 43,6 44,1 55,2
1 1 1 1 1 1 1 2 2
6,2 7,3 8,4 9,9 10,6 12,5 16,4 17,4 18,8
1 1 1 1 1 1 1 1 1
430 440 440 440 600 600 740 700 930
60,7 61,1 62,5 62,7 63,9 66,9 70,0 68,5 69,8
MODEL
Size
Cooling capacity (1)
kW
Free-cooling capacity (2) kW
Compressors n.
Power input (1)
kW
Gas circuits n.
Weight
kg
Sound pressure (3) dB(A)
62 65 76 98 124 158 180 197 230
P1 S P2 S P2 S P2 S P2 S P2 S P2 S P2 S P3 S
C3 C3 C3 C4 C4 C4 C5 C5 C5
60,8 64,2 73,6 95,5 117,0 151,0 174,0 187,0 214,0
57,7 60,2 66,7 84,9 100,0 115,0 135,0 141,0 152,0
1 2 2 2 2 2 2 2 3
20,3 21,4 25,6 32,3 41,8 55,1 60,8 70,3 87,4
1 1 1 1 1 1 1 1 1
970 940 1000 1470 1610 1660 2240 2220 2370
72,6 71,7 71,5 71,9 78,8 81,9 81,6 82,0 82,9
new
MAXIMO
double circuit / axial fans
MODEL
52 58 65 76 98 124 158 180 197 240
P2 D P2 D P2 D P2 D P2 D P2 D P2 D P2 D P2 D P4 D
Size
C2 C3 C3 C3 C4 C4 C4 C5 C5 C5
Cooling capacity (1)
kW 49,1 57,5 64,3 73,4 94,4 116,0 153,0 174,0 190,0 224,0
Free-cooling capacity (2) kW 44,1 55,3 60,2 66,6 84,5 99,9 116,0 135,0 142,0 154,0
Compressors n. 2 2 2 2 2 2 2 2 2 4
Power input (1)
kW 17,4 18,8 21,4 25,6 32,1 41,6 55,3 61,1 70,7 90,4
Gas circuits n. 2 2 2 2 2 2 2 2 2 2
Weight
kg 700 920 930 1000 1470 1610 1640 2210 2230 2510
Sound pressure (3) dB(A) 68,5 69,8 71,7 71,5 71,9 78,8 81,9 81,6 82,0 84,0
(1) Referred to chilled water temperature 12/7°C / 20% glycol and air to the condenser at 35°C
(2) Referred to water inlet temperature at 15°C / 20% glycol and outdoor temperature at 3°C
(3) Sound pressure 1m far in free field conditions according to ISO3744 norms
POWER SUPPLY: 400.3.50+N
C_GNR_0310
RCGROUP SpA

MAXIMO
air cooled liquid chillers with free-cooling system
95
TECHNICAL DATA AND NOMINAL PERFORMANCES
new
MAXIMO PF
single circuit / plug-fans
MODEL
Size
Cooling capacity (1)
kW
Free-cooling capacity (2) kW
Compressors n.
Power input (1)
kW
Gas circuits n.
Weight
kg
Sound pressure (3) dB(A)
22 24 28 32 36 42 53 67
P1 S P1 S P1 S P1 S P1 S P1 S P1 S P1 S
C1 C1 C1 C1 C1 C1 C2 C2
21,4 24,3 28,4 32,2 35,9 41,1 52,4 66,4
18,4 20,0 23,4 26,5 28,8 30,7 43,1 53,2
1 1 1 1 1 1 1 1
6,3 7,3 8,5 9,7 11,0 13,4 16,4 20,5
1 1 1 1 1 1 1 1
450 460 460 470 470 480 750 790
70,7 72,3 76,4 9,7 77,9 78,9 77,8 80,0
MODEL
Size
Cooling capacity (1)
kW
Free-cooling capacity (2) kW
Compressors n.
Power input (1)
kW
Gas circuits n.
Weight
kg
Sound pressure (3) dB(A)
55 62 71 85 107 135 170 195 220 250
P2 S P2 S P2 S P2 S P2 S P2 S P2 S P2 S P2 S P3 S
C2 C2 C2 C3 C3 C4 C4 C4 C5 C5
55,5 62,3 70,3 83,7 106,0 131,0 170,0 187,0 216,0 246,0
46,7 51,6 56,7 68,8 82,7 102,0 126,0 129,0 160,0 170,0
2 2 2 2 2 2 2 2 2 3
17,0 19,4 21,9 25,2 32,4 40,9 52,6 62,4 66,7 83,0
1 1 1 1 1 1 1 1 1 1
740 810 820 1050 1240 1690 1800 1850 2320 2490
76,4 70,3 72,6 76,5 81,3 74,1 77,6 77,6 77,6 77,9
new
MAXIMO PF
double circuit / plug-fans
MODEL
55 62 71 85 107 135 170 195 220 265 290
P2 D P2 D P2 D P2 D P2 D P2 D P2 D P2 D P2 D P4 D P4 D
Size
C2 C2 C2 C3 C3 C4 C4 C4 C5 C5 C5
Cooling capacity (1)
kW 55,6 62,7 70,3 83,5 104,0 129,0 168,0 190,0 220,0 261,0 285,0
Free-cooling capacity (2) kW 46,7 51,7 56,7 68,7 82,5 101,0 125,0 130,0 161,0 174,0 179,0
Compressors n. 2 2 2 2 2 2 2 2 2 4 4
Power input (1)
kW 17,0 19,5 21,9 25,2 32,7 40,7 52,3 62,8 67,1 84,2 102,0
Gas circuits n. 2 2 2 2 2 2 2 2 2 2 2
Weight
kg 740 810 820 1050 1240 1690 1780 1820 2330 2670 2720
Sound pressure (3) dB(A) 76,4 70,3 72,6 76,5 81,3 74,1 77,6 77,6 77,6 78,0 78,0
(1) Referred to chilled water temperature 12/7°C / 20% glycol and air to the condenser at 35°C
(2) Referred to water inlet temperature at 15°C / 20% glycol and outdoor temperature at 3°C
(3) Sound pressure 1m far in free field conditions according to ISO3744 norms
POWER SUPPLY: 400.3.50
RCGROUP SpA
C_GNR_0310

96
MAXIMO
air cooled liquid chillers with free-cooling system
dimensionS (mm)
MAXIMO
Size a b c
C1 1.250 1.010 1.950
C2 1.800 1.180 2.000
C3 2.600 1.340 2.000
C
C4 3.700 1.490 2.000
C5 4.950 1.500 2.040
A
B
MAXIMO PF
Size a b c
C1 1.250 1.010 1.950
C2 1.800 1.180 2.000
C3 2.600 1.340 2.000
C
C4 3.700 1.490 2.000
C5 4.950 1.500 2.040
B
A
C_GNR_0310
RCGROUP SpA