Trane CGAX/CXAX User Manual

CG-PRC026C-GB
5
Microchannel condensing coils on cooling-
only units
Conquest chillers are equipped with microchannel
condensing coils allowing excellent heat transfer and a
dramatic improvement of corrosion resistance versus
conventional tubes in fi ns coils. Microchannel coils are
100% aluminum, therefore avoiding galvanic corrosion
which can occur on conventional condensers made with
copper tubes and aluminum fi ns. Microchannel coils are
also well adapted for dirty environment thanks to their
small thickness and fi ns profi le.
Heat pump units coils
The condenser coil is made of aluminum fi ns
mechanically bonded to seamless copper tubing and
includes integral subcooling circuit. The coils are factory
leak tested at 5 Mpa. If the unit is to be installed in a
corrosive environment, aluminum fi ns can be pre-coated
with epoxy (optional), with minimum thickness of 8µm,
in order to withstand 1000 hours of salt spray test
according to ISO 9227.
Electronic Expansion Valve
Electronic expansion valve enables tight chilled water
temperature control and low superheat, resulting in
more effi cient full-load and part-load operation.
Application versatility
Extended operating map, allowing chiller operation in
multiple applications:
• Industrial/low temperature process cooling with
precise temperature control capability
• Optimal and reliable operation at high ambient
temperatures.
LWT = Leaving water temperature
Amb Air T = Ambient air temperature
A = Standard operating map
B = Low ambient operating map (Variable air fl ow control)
Minimum start-up/operation ambient based on a
2.22 m/s (5mph) wind across the condenser
Features and Benefi ts
Figure 4 - Microchannel condensing coils
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
-15 -10 -5 0 5 10 15 20 25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
-15 -10 -5 0 5 10 15 20 25
A
LWT (°C)
Amb Air T °C
B
AmbAir T °C
LWT (°C)
Figure 5 - Operating map- Cooling-only Model CGAX
Air condenser inlet
Slit fi ns and brazed contact
for improved heat transfer
and strength
Microchannels
for R410A
Air
condenser
outlet

Trane CGAX/CXAX Specifications

General

Brand	Trane
Model	CGAX/CXAX
Category	Air Compressor
Language	English