McQuay PFSB 103.1, Product Manual

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803 B – 04/11 D – pag. 11/24
Physical data PFS “B”
PFS Unit size 103.1 124.1 147.1 208.2 229.2 249.2
272.2
296.2
Cooling capacity (1) kW 369 445 521 734 816 895 976 1050
Power input (1) kW
65 78 90 130 143 155 168 180
COP (1)
5.7 5.7 5.8 5.7 5.7 5.8 5.8 5.8
McQuay Screw compressors No. 1 1 1 2 2 2 2 2
Refrigerant circuits No. 1 1 1 1 1 1 1 1
Min % of capacity reduction %
25,0 25,0 25,0 12,5 12,5 12,5 12,5 12,5
Refrigerant charge HFC 134a kg 130 165 180 200 215 230 274 290
Oil charge l 30 30 30 60 60 60 60 60
Evaporator
Evaporators / water volume
No./l 1/78 1/107 1/134 1/184 1/210 1/210 1/281 1/302
Max water operating pressure bar 10,5 10,5 10,5 10,5 10,5 10,5 10,5 10,5
Condenser
Condensers / water volume
No./l 1/83 1/111 1/133 1/181 1/199 1/243 1/243 1/263
Max water operating pressure bar 10,5 10,5 10,5 10,5 10,5 10,5 10,5 10,5
Weight and dimensions
Shipping weight
kg
3089 3370 3603 5546 5636 6007 6448 6598
Operating weight kg
3250 3588 3870 5911 6045 6460 6972 7163
Unit length (2) mm 3625 3860 3860 4145 4145 4145 4145 4145
Unit width mm 1551 1551 1551 1743 1743 1808 1910 1910
Unit height mm 2250 2250 2250 2300 2300 2300 2300 2300
Note: (1) Nominal cooling capacity and power input are based on: 12/7 °C entering/leaving evaporator water temperature;
30/35 °C entering/leaving condenser water temperature.
(2) Length includes modulating condenser water flow valve.
Electrical data PFS “B”
PFS unit size 103.1 124.1 147.1 208.2 229.2 249.2 272.2 296.2
Standard voltage (1) 400 V – 3Ph – 50 Hz
Nominal unit current (2) A 112 129 148 224 244 258 277 295
Max unit current (3) A
137 178 205 302 331 357 385 410
Max unit inrush current (4) A
367 367 367 535 550 561 575 588
Max unit current for wires sizing (5) A
142 183 210 307 336 362 390 415
Max short circuit holding current kA
25 25 25 25 25 25 25 25
Notes: (1) Allowed voltage tolerance ± 10%. Voltage unbalance between phases must be within ± 3%.
(2) Absorbed current referred to nominal condition: 12/7 °C entering/leaving evaporator water temperature; 30/35 °C
entering/leaving condenser water temperature.
(3) Absorbed current referred to the following conditions: 15/10 °C entering/leaving evaporator water temperature;
45/50°C entering/leaving condenser water temperature.
(4) Absorbed current of compressor n°1 at 75% + inrush current of the other compressor.
(5)
Compressors FLA (Full Load Ampere).