General Information; Unit Description; General Data - Trane Ascend ACS 140 Installation, Operation And Maintenance Manual

General Information

Unit Description

Ascend™ Model ACS units are scroll type, air-cooled,
liquid chillers, designed for installation outdoors. Each
unit has two independent refrigerant circuits, with two
or three compressors per circuit. The chillers are
packaged with an evaporator and condenser.
N N o o t t e e : : Each unit is a completely assembled, hermetic
-compressors packaged unit that is factory-piped,
wired, leak-tested, dehydrated, charged and
tested for proper control operations prior to
shipment. The chilled water inlet and outlet
openings are covered for shipment.
The chiller features Tracer® UC800 controls to monitor
the control variables that govern the operation of the
Table 1. General data (I-P)
Unit Size (tons)
Compressor Model
Quantity
Tonnage/ckt
Evaporator
Water storage
Min. flow
Max. flow
Water connection
Condenser
Quantity of coils
Coil length
Coil height
Tube width
Fins per foot
Fan
Quantity
Diameter
Airflow per fan
Power per motor
Motor RPM
Tip speed
General Unit
Refrigerant circuits
Capacity steps
Min ambient - low/wide
Min ambient - std/high
Refrig charge/ckt
Oil charge/ckt
Pump Package (Single Pump)
AC-SVX002D-EN
140
# 4
(a)
30+40
gal
17.4
(b) gpm
168
(b) gpm
504
in 4
# 8
in 75
in 49
in 1
fpf
276
# 8
in 36
cfm 11337
HP 3.0
rpm
820
ft/min
7728
# 2
21-43-
%
71-100
°F -20
°F 32
(a)
lb 63
(a) gal
3.2
chiller unit. Adaptive Control logic can correct these
variables, when necessary, to optimize operational
efficiencies, avoid chiller shutdown, and keep
producing chilled water. Each refrigerant circuit is
provided with filter, sight glass, electronic expansion
valve, and charging valves. The evaporator is a brazed
plate heat exchanger equipped with water drain and
vent connections in the water piping. The condenser is
an air-cooled slit or serpentine fin coil, arranged in a
transverse V layout.

General Data

160 180
4 6
40+40 30+30+30 30+30+40
17.4 17.4
192 216
576 648
4 4
8 10
75 75
49 49
1 1
276 276
8 10
36 36
11334 11336 11334
3.0 3.0
820 820
7728 7728
2 2
25-50- 17-33-50- 15-30-50-
75-100 67-83-100 65-80-100
-20 -20
32 32
72 81
3.2 4.8
200 215 230
6 6
30+40+40 40+40+40
17.4 17.4 21.6
240 258 276
720 774 828
4 4
10 12
75 75
49 49
1 1
276 276 276
10 12
36 36
11337 11335
3.0 3.0
820 820 820
7728 7728 7728
2 2
14-32-50- 17-33-50-
64-82-100 67-83-100
-20 -20
32 32
90 96.8 103.5
4.8 4.8
6
4
12
75
49
1
12
36
3.0
2
-20
32
4.8
9