cgan-technical-data

Air-Cooled Liquid
Chiller with integrated
hydraulic module
Cooling only: CGAN 200 - 250 - 300 -
400 - 450 - 490 - 500 - 600 - 700 - 800 -
900 - 925
Reversible: CXAN 200 - 250 - 300 -
400 - 450 - 490 - 500 - 600 - 700 -
800 - 900 - 925
CG-PRC010-E4

CG-PRC010-E4
©American Standard Inc. 2004

CG-PRC010-E4 3
Contents
Features 4
General data 6
Application considerations 15
Cooling performance - Standard version 17
Cooling performance - Super Quiet version 29
Heating performance - Standard version and
Super Quiet version 41
Water side performance 44

4CG-PRC010-E4
Features
• Available in several configurations:
- Standard or Super quiet
- With or without hydraulic module
- Hydraulic module with or
without buffer tank
• 1 refrigerant circuit (sizes 200 to
490), 2 circuits (sizes 500 to 900)
• R407C operating charge
• Scroll compressors
• Stainless steel brazed plate heat
exchanger
• Aluminium fin coil with copper
tubes
• Filter drier
• Thermostatic expansion valves
• High and low pressure cut-outs
• 4-way valve (CXAN)
• Liquid receiver (CXAN)
• Low noise fans
• Disconnect switch
• Water flow switch
• Winter-freeze protection through
pump activation if pump is
controlled by unit
• Draining valve
• Frame in galvanized steel coated
with powder polyester resin paint
(RAL 9002)
• Threaded ISO R7 connection
Control
• Microprocessor control module
with Control of leaving water
temperature.
• Control steps:
- 2 steps for single circuit
- 4 steps for double circuits
• Liquid crystal display indicating:
- leaving water temperature.
- main operating parameters
- codes of any faults
- unit status
• Control of operating parameters.
• Cold or hot water reset
• On/off Programming
• Anti-freeze protection of
evaporator.
• Control of defrosting (CXAN).
• Dry contacts for remote signal of
on/off and general fault.
• Inputs for external water setpoint
reset, auxiliary setpoint, remote
On/Off and Cooling/heating switch
Options
Hydraulic
5 versions available
• No hydraulic control
• With single pump contactors to
control a remote pump
• With double pump contactors to
control 2 remote double pumps
• With single pump integrated
hydraulic module
• With double pump hydraulic
module
Hydraulic module
• Single or double pump
• Balancing valve
• Expansion vessel
• Pressure relief valve set to 3.5 bar
• Water strainer
• Shut-off valve
• Drainage valve
• Pressure ports for gauge
connection
• Water pressure gauge
• Thermally insulated evaporator
and liquid line to reduce water
condensing or freezing
• Condensate collection and
drainage (below pump)
• Pump winter freeze protection
down to -18°C (the pump is
activated under an ambient
temperature setting)
Buffer tank (only available with
hydraulic module)
As a unique design the water tank is
located below the chiller which allow
to keep the same footprint and
increase the height of the unit of
only 400 mm. The tank is fully
insulated and is engineered for a
continuous flow.
Sizes 200 and 250 370 l.
Sizes 300 to 490 410 l.
Sizes 500 to 925 570 l.
The purpose of such device is to
increase the circuit inertia when
necessary, for example with short
water loops. A high circuit inertia
reduces the compressors cycling to
increase the compressors life span
and also smoothes the water
temperature for comfort or
demanding processes.

CG-PRC010-E4 5
Condenser
Fan control for low ambient
operation in cooling mode:
1 speed fan (+10°C)
2 speeds fans (-10°C)
Inverter fans (-18°C)
Super quiet version, Unit with
compressor sound insulated casing
(-5dB(A) average)
High External Static Pressure fans
(not available in super quiet)
80 Pa for sizes 200, 250, 300, 500,
600, 700
60 Pa for sizes 400, 450, 490, 800,
900, 925
Condenser fins
• Aluminum fins and copper tubes
(standard)
• Copper fins
• Aluminum fins with black epoxy
fin protection
• Coil protection grille (not suitable
for container shipment)
Electrical
• Phase reversal protection
• Soft starter to reduce starting
current (sizes 200 250 300 only not
available with inverter fans)
• Antifreeze protection to protect the
evaporator, hydraulic module and
buffer tank down to -10°C
Other
HP and LP pressure gauges,
pressure measurement can also be
done through the controller
(pressure transducers)
Any other request please contact
your local Trane Sales office
LonTalk® option
Description
The Lon interface uses an Echelon
FTT-10 transceiver, which is
approved to be used on the TP/FT-10
channel.
This channel is characterized by the
following main features:
• It consists of up to 64 nodes on a
single network segment
• Data rate: 78 125 kbps
• Maximum distance: 1400 meters
For futher detail, refer to the official
documentation LonWorks® FTT-10A
free topology transeiver user’s guide
and to the official LonWorks®
guidelines LonMark® layer 1-6
interoperability guidelines version
3.0. These documents and additional
information are available on the
internet site www.lonmark.org
The serial link uses the chiller
controller profile reference 8040.
The following orders can be sent to
the chiller(s) :
• Modify the chilled or hot water
temperature setpoint
• Start or stop the unit
• Switch from cooling to heating
mode on heat pump
The following information can be
read :
• Leaving chilled or hot water
temperature setpoint
• Water temperature at the inlet and
outlet of the evaporator
• Ambient air temperature
• Chiller in operation
• Alarm description:
Manual or auto reset fault
Ckt1 or ckt2 fan fault
Pump1 or pump 2 fault
Compressor A1 or B1 or A2 or
B2 fault
Features