Dunham-Bush ACDS, Installation, Operation & Maintanance Manual

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1.0 INTRODUCTION
MODEL ACDS 090 100 120 135 150 165 180
NOMINAL CAPACITY TONS
89.8 100.8 108.4 125.4 138.5 153.0 163.7
NOMINAL POWER INPUT KW
103.7 108.7 118.7 130.8 150.0 160.4 176.5
COMPRESSOR
RPM
3500 3500 3500 3500 3500 3500 3500
MIN. % UNIT CAPACITY REDUCTION
25% 25% 25% 16.7% 16.7% 16.7% 16.7%
NO. OF REFRIGERANT CIRCUIT
2 2 2 2 2 2 2
EVAPORATOR
WATER CONNECTOR INCH[MM]
2.5[63.5] 2.5[63.5] 2.5[63.5] 3.0[76.2] 3.0[76.2] 3.0[76.2] 3.0[76.2]
NOM. WATER FLOW / PD
(GPM) /(FT IN WG) [m³/hr / kPa]
206.8/ 15.2
[47.0/ 45.4] 230.2/ 15.4
[52.3/ 46.0] 272.0/ 15.8
[61.8/ 47.2] 351.2/ 15.2
[79.8/ 45.4] 345.9/ 14.8
[78.6/ 44.2] 404.6/ 17.5
[91.9/ 52.3] 414.5/ 14.8
[94.1/ 44.2]
MIN/MAX. WATER FLOW (GPM)/[m³/hr]
147.0/ 443.0
[33.4/ 100.6] 161.0/ 484.0
[36.6/ 109.9] 185.0/ 551.0
[42.0/ 125.1] 210.0/ 400.0
[47.7/ 90.8]
210.0/ 400.0
[47.7/ 90.8]
250.0/ 450.0
[56.8/ 102.2] 270.0/ 480.0
[61.3/ 109.0]
MIN/MAX. WATER PD
(FT IN WG) / [kPa]
8.4/ 61.2
[25.1/ 182.9]
8.3/ 60.0
[24.8/ 179.3]
8.0/ 57.5
[23.9/ 171.9]
5.1/ 30.0
[15.2/ 89.7]
5.1/ 30.0
[15.2/ 89.7]
5.1/ 30.0
[15.2/ 89.7]
5.1/ 30.0
[15.2/ 89.7]
CONDENSER
COIL ROWS DEEP/ TOTAL FA FT²[M²]
4/
133.0[12.4]
4/
177.3[16.5]
4/
177.3[16.5]
4/
235.6[21.9]
4/
235.6[21.9]
4/
282.6[26.3]
4/
282.6[26.3]
TOTAL CFM
71400 96960 95200 124140 122850 147420 147420
NO OF FAN
6 8 8 10 10 12 12
FAN DIA INCH[MM]
31.5[800.0] 31.5[800.0] 31.5[800.0] 31.5[800.0] 31.5[800.0] 31.5[800.0] 31.5[800.0]
MOTOR HP (QTY)
2.0 (6) 2.0 (8) 2.0 (8) 2.0 (10) 2.0 (10) 2.0 (12) 2.0 (12)
FAN FLA , AMP (QTY)
3.4 (6) 3.4 (8) 3.4 (8) 3.4 (10) 3.4 (10) 3.4 (12) 3.4 (12)
MIN. OPERATING AMBIENT °F[°C]
45 [7.2] 45 [7.2] 45 [7.2] 45 [7.2] 45 [7.2] 45 [7.2] 45 [7.2]
ELECTRICAL
NOM. VOLTAGE
460/3/60 460/3/60 460/3/60 460/3/60 460/3/60 460/3/60 460/3/60
RLA/COMPRESSOR (QTY), AMPS
46 (4) 46 (2)
56 (2) 56 (4) 36 (3)
46 (3) 46 (6) 46 (3)
56 (3) 56 (6)
UNIT MAX. INRUSH, AMPS
418 495 515 494 524 611 641
GENERAL
UNIT LENGTH INCH[MM]
148[3759] 189[4801] 189[4801] 225.5[5728] 225.5[5728] 267.5[6795] 267.5[6795]
UNIT WIDTH INCH[MM]
88[2235] 88[2235] 88[2235] 88[2235] 88[2235] 88[2235] 88[2235]
UNIT HEIGHT INCH[MM]
88[2235] 88[2235] 88[2235] 93[2362] 93[2362] 93[2362] 93[2362]
SHIPPING WEIGHT LB[KG]
5231[2373] 6196[2811] 6309[2862] 7336[3328] 7888[3578] 9120[4137] 9844[4465]
OPERATING WEIGHT LB[KG]
5290[2400] 6264[2841] 6383[2895] 7454[3381] 8005[3631] 9251[4196] 10007[4539]
OPERATING CHARGE R410A LB[KG]
229[104] 254[115] 304[138] 342[155] 381[173] 419[190] 456[207]
Note: Nominal capacity is based on evaporator LFT 44°F and condenser ambient 95°F, actual capacity depends on the specified operating
conditions.