Mechanical Specifications - Trane CGAD020C Manual

30
Mechanical
Especifications
Evaporators
Shell & Tube evaporators are designed
according to the ASME standard for pres-
sure vessels, without internal combustion,
and are factory tested with 225 psig at
refrigerant side (tubes) and 150 psig at
water side (casing). The evaporator casing
is made of carbon steel and the covers are
made of cast iron.
Carbon Steel
Mirror
Condensers
Coil-type condensers are built with alumi-
num fins model Wavy-3B, 3/8"-OD
internally-rifled copper tubes, mechanically
expanded in the fins, and galvanized steel
structure, and are equipped with an inte-
gral sub-cooler. After manufacturing,
condensers are tested with a pressure
of 30 kgf/cm2 (425 psig).30 kgf/cm2
(425 psig).
Air Flow
Fan
Fig. 22- Condenser Air Flow
The copper tubes are internally-rifled,
seamless tubes, mounted and
mechanically expanded in carbon steel
mirrors to avoid refrigerant leaks. In order
to avoid tube vibration problems and
maintain the crossed drainage of evapora-
tor water, traverse baffle plates are
mounted along the evaporator.
Thermal insulation of the assembly is
provided by 16-mm rubber sheets.
Plastic Baffle Plates
Fig. 27 - Shell & Tube Evaporator
Refrigerating lines
Trane CGAD Air-Cooled Liquid Chillers are
equipped with the following refrigerating
lines:
M odel
020
025
030
040
050
060
070
Evaporator
080
Coils
090
100
120
150
Internally-Rifled
Copper Tube
Water Flow
Suction Discharge Liquid
1 5/8" 1 3/8" 7/8"
2 1/8" 1 3/8" 7/8"
2 1/8" 1 3/8" 7/8"
2 x 1 5/8" 2 x 1 3/8" 2 x 7/8"
2 x 2 5/8" 2 x 1 3/8" 2 x 7/8"
2 x 2 5/8" 2 x 1 3/8" 2 x 7/8"
2 x 2 5/8" 2 x 1 3/8" 2 x 1 1/8"
2 x 2 5/8" 2 x 1 3/8" 2 x 1 1/8"
2 x 2 5/8" 2 x 1 3/8" 2 x 1 1/8"
2 5/8" 1 5/8" 1 1/8"
2 5/8" 1 5/8" 1 1/8"
3 1/8" 2 1/8" 1 1/8"
CG-PRC002A-EN