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Table 1B — 40RUA Physical Data, SI — Cooling Units
LEGEND
UNIT 40RUA* 252830
NOMINAL CAPACITY (kW) 70 87 105
OPERATING WEIGHT (kg)
Base Unit with TXV 331 477 482
Plenum 102 148 148
FANS
Qty...Diam. (mm) 2...381 2...457 2...457
Nominal Airflow (L/s) 3775 4119 5663
Airflow Range (L/s) 2831 – 4719 3539 – 5899 4247 – 7079
Nominal Motor kW (Standard Motor)
208/230-3-60 and 460-3-60 3.73 5.60 7.46
575-3-60 3.73 5.60 7.46
Motor Speed (r/s)
208/230-3-60 and 460-3-60 29.1 29.1 29.1
575-3-60 29.1 29.3 29.3
REFRIGERANT R-410A
Operating charge (kg)
(approx per circuit)
†
1.59 2.04 2.27
DIRECT-EXPANSION COIL Enhanced Copper Tubes, Aluminum Sine-Wave Fins
Max Working Pressure (kPag) 3102
Face Area (sq m) 1.85 2.30 2.77
No. of Splits 222
No. of Circuits per Split 18 20 24
Split Type...Percentage Face...50/50
Fins/m 670 591 591
PIPING CONNECTIONS,
Quantity...Size (in.)
DX Coil — Suction (ODF) 2...1
1
/
8
2...1
3
/
8
2...1
3
/
8
DX Coil — Liquid Refrigerant (ODF) 2...
5
/
8
Steam Coil, In (MPT) 1...2
1
/
2
Steam Coil, Out (MPT) 1...
1
/
2
Hot Water Coil, In (MPT) 1...2
Hot Water Coil, Out (MPT) 1...2
Condensate (PVC) 1...1
1
/
4
ODM/1 IDF
FILTERS Throwaway — Factory Supplied
Quantity...Size (mm.)
4...406 x 508 x 51
4...406 x 610 x 51
4...508 x 610 x 51
4...508 x 635 x 51
Access Location Either Side
STEAM COIL
‡
Max Working Pressure (kPag at 126°C) 138
Total Face Area (sq m) 1.24 1.39 1.39
Rows...Fins/m 1...394 1...394 1...394
HOT WATER COIL
‡
Max Working Pressure (kPag) 1034
Total Face Area (sq m) 1.24 1.39 1.39
Rows...Fins/m 2...335 2...335 2...335
Water Volume
(L) 52.6 54.1
(m
3
) 0.052 0.054
DX — Direct Expansion
TXV — Thermostatic Expansion Valve
†
Units are shipped without refrigerant charge.
‡
Field installed accessory only.