Dunham-Bush ACDS, Installation, Operation & Maintanance Manual

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1.0 INTRODUCTION
1.1 PHYSICAL DATA
MODEL ACDS 010 020 030 040 050 060 070 080
NOMINAL CAPACITY TONS
10.0 20.9 26.9 41.3 53.2 62.0 71.1 81.4
NOMINAL POWER INPUT KW
10.9 22.5 28.0 45.8 56.8 68.9 80.4 90.7
COMPRESSOR
RPM
3500 3500 3500 3500 3500 3500 3500 3500
MIN. % UNIT CAPACITY REDUCTION
50% 50% 50% 25% 25% 25% 25% 25%
NO. OF REFRIGERANT CIRCUIT
1 1 1 2 2 2 2 2
EVAPORATOR
WATER CONNECTOR INCH[MM]
1.6 [41.3] 1.6 [41.3] 1.6 [41.3] 2.5[63.5] 2.5[63.5] 2.5[63.5] 2.5[63.5] 2.5[63.5]
NOM. WATER FLOW / PD
(GPM)/(FT IN WG) [m³/hr / kPa]
24.9/ 10.6
[5.7/ 31.7] 49.8/ 10.8
[11.3/ 32.3]
66.5/ 12.7
[15.1/ 38]
93.0/ 13.5
[21.1/ 40.4]
121.1/ 14.4
[27.5/ 43.0] 157.0/ 14.4
[35.7/ 43.0] 165.1/ 14.8
[37.5/ 44.2] 189/ 15.0
[42.9/ 44.8]
MIN/MAX. WATER FLOW (GPM)/[m³/hr]
23.0/ 73.0
[5.2/ 16.9] 42.0/ 131.0
[9.5/ 29.8]
53.0/ 161.0
[12.0/ 36.6] 72.0/ 216.0
[16.4/ 49.1] 90.0/ 272.0
[20.4/ 61.8]
116.0/ 351.0
[26.3/ 79.7]
121.0/ 363.0
[27.5/ 82.4]
136.0/ 410.0
[30.9/ 93.1]
MIN/MAX. WATER PD
(FT IN WG) / [kPa]
9.5/ 78.7
[28.4/ 235.2]
8.1/ 65.6
[24.2/ 196.1]
8.3/ 72.0
[24.8/ 215.2]
8.8/ 62.6
[26.3/ 187.1]
8.7/ 63.0
[26.0/ 188.3]
8.6/ 63.0
[25.7/ 188.3]
8.7/ 62.6
[26.0/ 187.1]
8.5/ 61.9
[25.4/ 185.0]
CONDENSER
COIL ROWS DEEP/ TOTAL FA FT²[M²]
3/
20.0[1.9]
3/
38.5[3.6]
4/
42.8[4.0]
3/
64.2[6.0]
3/
105.0[9.8]
4/
105.0[9.8]
4/
105.0[9.8]
4/
133.0[12.4]
TOTAL CFM
10150 20200 25000 38000 60300 54798 54798 71400
NO OF FAN
1 2 4 4 6 6 6 6
FAN DIA INCH[MM]
30.0[762] 30.0[762] 30.0[762] 30.0[762] 30.0[762] 30.0[762] 30.0[762] 31.5[800.0]
MOTOR HP (QTY)
1.5 (1) 1.5 (2) 1.5 (4) 1.5 (4) 1.5 (6) 1.5 (6) 1.5 (6) 2.0 (6)
FAN FLA , AMP (QTY)
2.7 (1) 2.7 (2) 2.7 (4) 2.7 (4) 2.7 (6) 2.7 (6) 2.7 (6) 3.4 (6)
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] 45 [7.2]
ELECTRICAL
NOM. VOLTAGE
460/3/60 460/3/60 460/3/60 460/3/60 460/3/60 460/3/60 460/3/60 460/3/60
RLA/COMPRESSOR (QTY), AMPS
12 (2) 21 (2) 26 (2) 21 (4) 26 (4) 26 (2)
36 (2) 36 (4) 36 (2)
46 (2)
UNIT MAX. INRUSH, AMPS
102 173 197 221 254 319 339 398
GENERAL
UNIT LENGTH INCH[MM]
58[1473] 96[2438] 98[2489] 98[2489] 142[3607] 142[3607] 142[3607] 148[3759]
UNIT WIDTH INCH[MM]
43[1092] 43[1092] 88[2235] 88[2235] 88[2235] 88[2235] 88[2235] 88[2235]
UNIT HEIGHT INCH[MM]
51[1295] 51[1295] 57[1448] 57[1448] 76[1930] 76[1930] 76[1930] 88[2235]
SHIPPING WEIGHT LB[KG]
929[421] 1503[682] 2350[1066] 2603[1181] 3950[1792] 4153[1884] 4364[1979] 4865[2207]
OPERATING WEIGHT LB[KG]
934[424] 1515[687] 2365[1073] 2629[1193] 3984[1807] 4193[1902] 4409[2000] 4918[2231]
OPERATING CHARGE R410A LB[KG]
26[12] 51[23] 77[35] 101[46] 128[58] 152[69] 179[81] 203[92]
Note: Nominal capacity is based on evaporator LFT 44°F and condenser ambient 95°F, actual capacity depends on the specified operating
conditions.