Chiller VLH 704 to 1204 Air Cooled Water Chillers Heat Pump Engineering Data Manual 173 to 300 kW 200 to 337 kW
| VLH 704-1204
VLH 704-1204 | Key points Units with R410A refrigerant. As near azeotropic mixture it behaves like a homogeneous substance (reduced service problems in case of leakage or re-charge) with negligible temperature glide Units with EER values higher than 2.8 (energy efficiency class C) With except for the fans, all the versions keep the same configuration of the base units (same structure, electrical board, compressors and coils).
| VLH 704-1204 Specifications General description The VLH units have been designed to operate with HFC 410A refrigerant. Both compressors and heat exchangers (plate heat exchanger and coils) have been optimized for this refrigerant.
VLH 704-1204 | Conformity with standard The following applies to all the sizes and versions of VLH units: Fan Speed control The speed of fans is controlled in order to operate at a low ambient temperature.
| VLH 704-1204 Control HP and LP transducers (two for each circuit) Evaporator water inlet temperature sensor Evaporator water outlet temperature sensor (with an antifreeze function) Suction temperature sensor for EXV control Ambient air temperature sensor Coil temperature sensors Electronic control The units are supplied with the new microprocessor-based electronic control and management system ensuring the following functions: Management of the operation of compressors: a) Pow
VLH 704-1204 | The hydro kit with single pump is fitted inside the unit, whereas the one with double pump is fitted on the back of the unit. The water pump(s) is supplied with sound-proof box for VLH units in S version.
| VLH 704-1204 Refrigerant Flow Diagram - VLH Units AT A M A S S 12 A AT A M 12 ON ON 1 8 1 OIL EQUAL. G N H 11 9 S BT 5 EXV CONTROL S 9 B B S UNIT CONTROL UNIT CONTROL S H D 5 EXV CONTROL C 6 G 6 F 6 E 7 7 S 6 S 6 10 3 N 2 BT G 6 S G 5 5 2 D 8 OIL EQUAL.
VLH 704-1204 | Operating Limits - VLH Units Operating limits 704 VLH 704-904 Liquid outlet temperature Chiller 804 Max 904 Min Max Water outlet °C from +6 to +15 Brine outlet °C from -8 to +15 ∆T K Flow rate 1 Min Max from +3 to +8 l/h 19.017 50.711 22.360 59.627 24.607 65.618 Pressure drop 1 kPa 18,5 131,8 21,0 149,4 9,0 64,0 Max.
| VLH 704-1204 Correction Factors Fouling factors EVAPORATOR CONDENSER Fouling factor (m2.°C/kW) Cooling capacity factor Power input factor Fouling factor (m2.°C/kW) Cooling capacity factor Power input factor 0.044 1.000 1.000 0.044 1.000 1.000 0.088 0.987 0.995 0.088 0.987 1.023 0.176 0.964 0.985 0.176 0.955 1.068 0.352 0.915 0.962 0.352 0.910 1.135 Altitude factors Altitude (m) Cooling capacity factor Power input factor 0 1.000 1.000 600 0.987 1.010 1200 0.
VLH 704-1204 | Physical Data - VLH STD/HSE/HPF-STD versions VLH STD/HSE/HPF-STD models Nominal cooling capacity (1) kW Input power (1) kW 704 804 904 1004 1104 1204 173,2 197,1 226,4 246,3 273,1 299,9 66,1 72,2 82,6 86,7 99,7 114,0 2,62/D 2,73/C 2,74/C 2,84/C 2,74/C 2,63/D SEER (3) 3,63 3,55 3,35 3,50 3,53 3,43 hsc (3) 142 139 131 137 138 134 SEER HSE(3)(*) 3,95 3,83 3,65 3,80 3,78 3,68 EER/ Energy efficiency class (1) hsc HSE (3)(*) 155 150 143 149 14
| VLH 704-1204 Physical Data - VLH STD/HSE- L versions VLH STD/HSE-L models Nominal cooling capacity (1) kW Input power (1) kW EER/ Energy efficiency class (1) 704 804 904 1004 1104 1204 168,2 191,2 220,4 237,3 261,2 285,1 66,2 73,3 83,8 88,5 102,8 119,8 2,54/D 2,61/D 2,63/D 2,68/D 2,54/D 2,38/E 3,23 SEER (3) 3,0 3,0 3,1 3,28 3,3 hsc (3) 117 117 121 128 129 126 SEER HSE(3)(*) 3,95 3,83 3,65 3,8 3,78 3,68 hsc HSE (3)(*) 155 150 143 149 148 144 Nomi
VLH 704-1204 | Physical Data - VLH STD/HSE- S versions VLH STD/HSE-S models Nominal cooling capacity (1) kW Input power (1) kW 704 804 904 1004 1104 1204 164,3 185,2 214,5 230,4 253,3 276,1 69,0 76,2 86,1 90,7 106,9 124,9 2,38/E 2,43/E 2,49/E 2,54/D 2,37/E 2,21/F SEER (3) 3,63 3,55 3,35 3,5 3,53 3,43 hsc (3) 142 139 131 137 138 134 SEER HSE(3)(*) 3,95 3,83 3,65 3,8 3,78 3,68 EER/ Energy efficiency class (1) hsc HSE (3)(*) 155 150 143 149 148 144 Nomi
| VLH 704-1204 Physical Data - VLH HT versions VLH HT models Nominal cooling capacity (1) kW Input power (1) kW EER/ Energy efficiency class (1) SEER (3) hsc (3) 704 804 904 1004 1104 1204 175,6 199,7 229,5 250,1 276,5 305,6 58,4 64,4 73,2 76,8 89,9 102,8 2,64/D 2,75/D 2,74/D 2,85/D 2,73/D 2,67/D 3,23 3 3 3,1 3,28 3,3 117 117 121 128 129 126 Nominal heating capacity (2) kW 200,7 224,0 256,6 273,7 305,5 341,5 Input power (2) kW 60,6 63,5 71,4 79,3 91
VLH 704-1204 | Electrical Data - VLH STD Units Compressors @ 400 V / 3 ph / 50 Hz Models Power input Current at Power input at Current at max. at nominal nominal max. conditions conditions per Start up current conditions per conditions per per compressor compressor FLA LRA (A) compressor (kW) compressor (A) (kW) (A) Circuit 1 704 Circuit 2 Circuit 1 804 Circuit 2 Circuit 1 904 Circuit 2 Circuit 1 1004 Circuit 2 Circuit 1 1104 Circuit 2 Circuit 1 1204 Circuit 2 Power factor at nominal conditions 12.
| VLH 704-1204 Electrical Data - VLH STD Units (continued) Fans @ 400 V / 3 ph / 50 Hz VLH S models 704 804 904 1004 1104 3 3 4 4 4 4 kW 1.25 1.25 1.25 1.25 1.25 1.25 Number of fans Nominal power per fan Max. running current per fan Total fan power Total max. fan current 1204 A 2.3 2.3 2.3 2.3 2.3 2.3 kW 3.8 3.8 5.0 5.0 5.0 5.0 A 6.9 6.9 9.2 9.2 9.2 9.
VLH 704-1204 | Electrical Data - VLH HSE/HPF/HT Units Compressors @ 400 V / 3 ph / 50 Hz Models Power input Current at Power input at Current at max. at nominal nominal max.
| VLH 704-1204 Electrical Data - VLH HSE/HPF/HT Units (continued) Fans @ 400 V / 3 ph / 50 Hz VLH S models 704 804 904 1004 1104 3 3 4 4 4 4 kW 2.6 2.6 2.6 2.6 2.6 2.6 Number of fans Nominal power per fan Max. running current per fan 1204 A 4.1 4.1 4.1 4.1 4.1 4.1 kW 7.8 7.8 10.4 10.4 10.4 10.4 A 12.3 12.3 16.4 16.4 16.4 16.4 704 804 904 1004 1104 1204 Nominal power input kW 64.8 71.3 82.0 89.6 102.2 114.
VLH 704-1204 | Fan Data - HPF Version Sizes 704 804 904 1004 1104 1204 Fan static pressure [Pa] Fan rpm Service parameter Max speed (Vdc) 45 900 6.8 75 950 7.3 100* 1000 7.8 130 1050 8.3 160 1100 8.9 45 900 6.8 75 950 7.3 100* 1000 7.8 130 1050 8.3 160 1100 8.9 50 900 6.8 80 950 7.3 105* 1000 7.8 130 1050 8.3 160 1100 8.9 55 900 6.8 80 950 7.3 105* 1000 7.8 130 1050 8.3 160 1100 8.9 60 900 6.8 85 950 7.3 105* 1000 7.
| VLH 704-1204 Sound Levels - VLH Units VLH STD VLH L VLH S VLH HT (**) Frequency (Hz) 125 250 500 1000 2000 4000 8000 Sound Power dB(A) 704 87.0 86.0 94.0 88.0 82.0 67.0 55.0 93 61 804 87.0 86.0 94.0 88.0 82.0 67.0 55.0 93 61 904 88.0 87.0 95.0 89.0 83.0 68.0 56.0 94 62 1004 88.0 87.0 95.0 89.0 83.0 68.0 56.0 94 62 1104 89.0 88.0 96.0 90.0 84.0 69.0 57.0 95 63 1204 89.0 88.0 96.0 90.0 84.0 69.0 57.0 95 63 704 81.0 80.0 88.
VLH 704-1204 | Cooling Capacities - VLH STD/HSE/HPF - STD Version Condenser entering air temperature (°C) VLH STD/HSE/ HPF models 704 STD 804 STD 904 STD 1004 STD 1104 STD 1204 STD Notes : LWT (°C) 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 25 30 32 35 40 44 46 Cooling Input Cooling Input Cooling Input Cooling Input Cooling Input Cooling Input Cooling Input capacity power capacity power capacity power capacity power cap
| VLH 704-1204 Heating Capacities - VLH STD/HSE/HPF - STD Version Ambient coil entering air temperature (°C) VLH STD/HSE/ HPF models LWT (°C) 704 STD -5 -3 0 152.4 42.1 160.4 42.2 173.3 42.4 196.0 43.0 206.0 43.3 221.9 43.7 251.4 44.4 150.4 49.5 159.8 47.3 172.3 47.4 194.0 48.0 203.6 48.3 218.9 48.7 247.0 49.5 40 148.6 55.5 158.2 53.0 171.5 53.1 192.2 53.8 201.4 54.0 215.9 54.5 242.6 55.3 45 147.0 62.4 156.4 59.5 169.5 59.8 190.6 60.3 199.2 60.
VLH 704-1204 | Cooling Capacities - VLH STD/HSE - L Version Condenser entering air temperature (°C) VLH STD/HSE models 704 L 804 L 904 L 1004 L 1104 L 1204 L Notes : LWT (°C) 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 25 30 32 35 40 44 Cooling capacity (kW) Input power (kW) Cooling capacity (kW) Input power (kW) Cooling capacity (kW) Input power (kW) Cooling capacity (kW) Input power (kW) Cooling capacity (kW) I
| VLH 704-1204 Heating Capacities - VLH STD/HSE - L Version Ambient coil entering air temperature (°C) VLH STD/HSE models 704 L LWT (°C) -5 -3 0 148.6 42.1 156.3 42.2 169.0 42.4 191.1 43.0 200.8 43.3 216.3 43.7 245.1 44.4 146.6 49.5 155.7 47.3 168.0 47.4 189.2 48.0 198.5 48.3 213.4 48.7 240.8 49.5 40 144.9 55.5 154.2 53.0 167.2 53.1 187.4 53.8 196.3 54.0 210.5 54.5 236.5 55.3 45 143.3 62.4 152.4 59.5 165.3 59.8 185.8 60.3 194.2 60.6 207.8 61.
VLH 704-1204 | Cooling Capacities - VLH STD/HSE - S Version Condenser entering air temperature (°C) VLH STD/HSE models 704 S 804 S 904 S 1004 S 1104 S 1204 S Notes : LWT (°C) 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 25 30 32 35 40 Cooling capacity (kW) Input power (kW) Cooling capacity (kW) Input power (kW) Cooling capacity (kW) Input power (kW) Cooling capacity (kW) Input power (kW) Cooling capacity (kW) Input
| VLH 704-1204 Heating Capacities - VLH STD/HSE - S Version Ambient coil entering air temperature (°C) VLH STD/HSE models 704 S LWT (°C) -5 -3 0 140.5 42.2 147.9 42.3 159.8 42.4 180.8 43.0 189.9 43.3 204.6 43.8 231.8 44.5 138.7 49.6 147.3 47.3 158.9 47.5 178.9 48.1 187.7 48.4 201.9 48.8 227.8 49.6 40 137.0 55.6 145.9 53.1 158.2 53.2 177.3 53.8 185.7 54.1 199.1 54.6 223.7 55.4 45 135.6 62.5 144.2 59.6 156.3 59.9 175.8 60.4 183.7 60.7 196.6 61.
VLH 704-1204 | Cooling Capacities - VLH HT Condenser entering air temperature (°C) VLH HT models 704 804 904 1004 1104 1204 Notes : LWT (°C) 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 5 6 7 8 9 10 12 15 25 30 32 35 40 44 46 Cooling Input Cooling Input Cooling Input Cooling Input Cooling Input Cooling Input Cooling Input capacity power capacity power capacity power capacity power capacity power capacity power capacity power (kW) (kW) (kW)
| VLH 704-1204 Heating Capacities - VLH HT Ambient coil entering air temperature (°C) VLH HT models 704 804 904 1004 1104 1204 Notes : LWT (°C) -5 -3 0 5 7 10 15 Heating Input Heating Input Heating Input Heating Input Heating Input Heating Input Heating Input capacity power capacity power capacity power capacity power capacity power capacity power capacity power (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 30 153.5 42.1 161.6 42.2 174.6 42.4 197.5 43.
VLH 704-1204 | Evaporator Water Pressure Drop Curves 150 1 2 6 5 100 90 4 80 70 3 Pressure drop (kPa) 60 50 40 30 1 Size 704 2 Size 804 3 Size 904 4 Size 1004 5 Size 1104 6 Size 1204 1 Size 704 2 Size 804 3 Size 904 4 Size 1004 5 Size 1104 6 Size 1204 20 10 10 20 30 40 50 60 70 80 90 100 Flow rate (x 1000 l/h) Desuperheater Water Pressure Drop Curves 6 4 100 90 3 80 5 1 70 2 60 50 Pressure drop (kPa) 40 30 20 Note : Flow rate refers to one conden
| VLH 704-1204 Total Heat Recovery Condenser Water Pressure Drop Curves 250 12 200 2 6 5 4 3 100 Pressure drop (kPa) 30 90 1 Size 704 80 2 Size 804 70 3 Size 904 60 4 Size 1004 5 Size 1104 6 Size 1204 50 40 30 20 15 15 20 30 40 50 60 Flow rate (x 1000 l/h) 70 80 90 100 150
VLH 704-1204 | Water Pump Curves Model VLH 704 Available pressure head (kPa) 400 350 300 250 200 150 100 B 50 0 15000 20000 25000 30000 A 35000 40000 45000 50000 Water flow (l/h) Curve A : High pressure Curve B : Low pressure Available pressure head (kPa) Model VLH 804 400 350 300 250 200 150 100 50 A B 0 15000 20000 25000 30000 35000 40000 45000 Water flow (l/h) Curve A : High pressure Curve B : Low pressure 50000 31
| VLH 704-1204 Water Pump Curves (continued) Model VLH 904-1004 Available pressure head (kPa) 400 350 300 250 200 A 150 100 50 B 0 25000 30000 35000 40000 45000 50000 55000 60000 Water flow (l/h) Curve A : High pressure Curve B : Low pressure Model VLH 1104-1204 400 Available pressure head (kPa) 32 350 300 250 A 200 150 100 B 50 0 25000 30000 35000 40000 45000 50000 55000 Water flow (l/h) Curve A : High pressure Curve B : Low pressure 60000
VLH 704-1204 | Hydronic Specification Pump technical data Low pressure High pressure APH [kPa] Power input [kW] FLA [A] VLH Q nom [m3/h] Pump model APH [kPa] Power input [kW] FLA [A] FHE 40-125/22 88 2.2 5.03 704 30.7 FHE 40-160/40 215 4 7.71 FHE 40-160/30 111 3 6.25 804 34.6 FHE 40-160/40 180 4 7.71 VLH Q nom [m3/h] Pump model 704 30.7 804 34.6 904 39.9 FHE 50-125/30 120 3 6.25 904 39.9 FHE 50-160/55 235 5.5 10.4 1004 43.7 FHE 50-125/30 100 3 6.
| VLH 704-1204 Dimensions - VLH 704 to 1204 3 fans Sizes 704-804 4 fans Sizes 904-1204 130 993 250 D C * H3 A 934 H1 240 H2 B 1985 LIFT 4300 495 L 576 (*) ---- with 2 pumps only.
VLH 704-1204 | Dimensions - VLH 704 to 1204 with optional on board hydro kit 3 fans Sizes 704-804 4 fans Sizes 904-1204 130 250 D 193 H1 A H2 934 L B 480 2578 LIFT 5255 1629 674 480 1044 1985 1985 1629 674 480 1100 Dimensions (mm) H1 904 - 1204 205 213 H2 960 990 L 1186 1208 704 - 804 904 - 1204 Water outlet "A" 2" 1/2 Male 3" Male Water inlet "B" (with pump) 2" 1/2 Male 3" Male Desuperheater in/out "D" 4 x 1" Male 4 x 1" Male (**) Maximum with desuperheaters 2300
| VLH 704-1204 Space Requirements Single unit applications 3000 mm 1500 mm A 1500 mm 1000 mm 1500 mm VIEW A Multi units applications WALL A A1 A2 1.5 m WALL A A1 A2 A3 1.5 m WALL D 2.0 m WALL B WALL D WALL B 1.0 m 1.
Tel. +39 0362 680 1 Fax +39 0362 680 693 info@systemair.it www.systemair.com Systemair · November 2021 · EDM VL410-S.5GB/11.21 As part of our ongoing product improvement programme, our products are subject to change without prior notice. Non contractual photos.
