Trane CONQUEST CGAX Series User Manual

CG-SVX027E-GB
22
4 UNT-PRC002-GB
Technical Data
FWD 08 12 20 30 45
Power supply (V/Ph/Hz) 230/1/50
Capacities
Cooling capacity on water (1) (kW) 5,2 8,3 15 18,8 30,1
Heating capacity on water (2) (kW) 6,3 11,9 18,9 20,9 38,2
Fan motor (type) 2 x direct drive centrifugal
Fan power input (3) (kW) 0,23 0,46 0,65 1,04 1,51
Current amps (3) (A) 1,1 2,2 3,1 4,7 5,5
Start-up amps (A) 3,2 5,5 9,3 14,1 16,5
Air flow
minimum (m
3
/h) 490 980 1400 1800 2700
nominal (m
3
/h) 820 1650 2300 3000 4500
maximum (m
3
/h) 980 1970 2600 3600 5400
Main coil
Water entering/leaving connections (type) ISO R7 rotating female
(Dia) 3/4" 3/4" 1 1/2" 1 1/2" 1 1/2"
Electric heater (accessory for blower only)
Electric power supply (V/Ph/Hz) 230/1/50 230/1/50 or 400/3/50 400/3/50 400/3/50 400/3/50
Heating capacity (kW) 2/4 8 10 12 12
Hot water coil (accessory for blower only)
Heating capacity (4) (kW) 6,3 12 17,4 22,4 34,5
G2 filter (filter box accessory)
Quantity 2 2 2 2 2
Dimensions ( LxWxth) (mm) 386x221x8 486x271x8 586x321x8 586*421*8 586*621*8
G4 filter (filter box accessory)
Quantity - 2 2 2 2
Dimensions ( LxWxth) (mm) - 486x264x48 586x314x48 586*414*48 586*614*48
Condensate pump (accessory) (type) Centrifugal
Water flow - lift height (l/h - mm) 24 - 500
Not available for FWD30 and FWD45
Sound level (L/M/H speed)
Sound pressure level (5) (dB(A)) 36/40/43 38/41/44 46/50/53 47/52/57 47/52/58
Sound power level (5) (dB(A)) 46/50/53 48/51/54 56/60/63 57/62/67 57/62/68
Unit dimensions
Width x Depth (mm) 890 x 600 1090 x 710 1290 x 820 1290 x 970 1290 x 1090
Height (mm) 250 300 350 450 650
Shipped unit dimensions
Width x Depth (mm) 933 x 644 1133 x 754 1333 x 864 1333 x 1008 1333*1133
Height (mm) 260 310 360 460 660
Weight (kg) 32 46 61 76 118
Colour galvanised steel
Recommended fuse size
Unit alone (aM/gI) (A) 8/16 8/16 8/16 8/25 8/25
Unit with electric heater (gI) (A) 16 (2kW),25 (4kW) 40 (230V),3*16 (400V) 3*20 3*25 3*25
(1) Conditions: Water entering/leaving temperature: 7/12 °C, Air inlet temperature 27/19°C DB/WB - Nominal air flow
(2) Conditions: Water entering/leaving temperature: 50/45 °C, Air inlet temperature 20°C DB - Nominal air flow
(3) At high speed with nominal air flow.
(4) Water entering/leaving temperature 90/70 °C, air inlet temperature 20 °C DB, Nominal air flow.
(5) A rectangular glass wool duct 1m50 long is placed on the blower.The measurement is taken in the room containing the blower unit.
Heat exchanger operating limits:
FWD:
*water temperature: max 100° C
*absolute service pressure: min 1 bar/max 11 bars
Accessories - Hot water coil:
*water temperature: min. +2° C/max. 100° C
*absolute service pressure: min 1 bar/max 11 bars
Installation – Mechanical
Freeze Protection
If the unit is exposed to ambient temperatures below
0°C, the chilled water system must be protected from
freezing following one of the options shown below:
1. Heaters
a. Heaters can be factory-installed (option) on the
evaporator and water piping and will protect it from
freezing in ambient temperatures down to -18°C.
AND
b. Install, outside the unit, heat tape on all water piping,
pumps, and other components that may be damaged
if exposed to freezing temperatures. Heat tape must be
designed for low ambient temperature applications. Heat
tape selection should be based on the lowest expected
ambient temperature.
OR
2. Freeze inhibitor
a. Add a freeze inhibitor uid to the chilled water
system. The solution must be strong enough to provide
protection against ice formation at the lowest anticipated
ambient temperature.
Note: Use of a freeze inhibitor fluid reduces the cooling
capacity of the unit and must be considered in the
design of the system specifications.
3. Water pump
a: Chiller controller can start the pump to prevent
freezing. This function needs to be validated, pump has
to be controlled by the unit and water circuit valves
need to stay open at all times. This protection will be
efcient to protect the unit, if the water loop is reduced.
The installation of a bypass is advised.
If ambient temperatures below -18°C, the water circuit
must be protected against freezing.
Add a freeze inhibitor uid and activate the heat tape on
the unit; do not shut the unit down.
It is not recommended to drain the water circuit for the
following reasons:
1. The water circuit will rust and its lifetime could be
reduced.
2. Water will remain in the bottom of the plate heat
exchangers and freeze damage could occur.
Note: If water pump control is enabled form the chiller
controller, it will request start of customer pump during
ambient air temperatures below freezing.
CAUTION! When using freeze inhibitor, never ll the
system with pure glycol. Always ll the system with
diluted solution. Maximum concentration of glycol is
40%. Higher glycol concentration will damage pump
seal.
Note: Never fill high Glycol concentration at the pump
suction as there is a high risk to damage pump seal.
In case of winter water drainage for freeze protection, it
is compulsory to disconnect the evaporators heaters to
protect them from burning due to overheat.
Note: Water pump control and heater combination will
protect the evaporator down to any ambient temperature
provided power is available to the pump and the
controller. This option will NOT protect the evaporator
in the event of power failure to the chiller unless backup
power is supplied to the necessary components.
The warranty will be void, in case of freezing due to the
lack of use of either of these protections.
Low refrigeration temperature setpoint and antifreeze
setpoint on chiller controller
CAUTION! The chiller is provided with standard factory
settings. It can be necessary to modify the Low Pressure
saturation Temperature and the Antifreeze Setpoint
on the unit control. Based on the following examples,
it is necessary to modify on the chiller controller the
following settings:
• The LP saturation temperature (LRTC)
• The antifreeze setpoint (LWTC)
Examples:
For:
• 7°C, the LP setting must be -4°C where the antifreeze
setting shall be 2°C
• 2°C, the LP setting must be -9°C where the antifreeze
setting shall be -4°C
• -12°C, the LP setting must be -23°C where the
antifreeze setting shall be -17°C
Freeze protection with glycol
It is mandatory to use a freeze inhibitor for leaving
water setpoint less or equal to 5°C. On the glycol
recommended concentration gure, you must select
concentration on or above the curve. For example, for
-4°C brine temperature, a concentration of 25% ethylene
glycol is not sufcient. The concentration must be 28%
ethylene glycol or 33% propylene glycol.
Using glycol with hydraulic module
If the glycol brine percentage is not at the recommended
percentage (greyed area), corrosion inhibitor present
in the glycol may not be efcient enough. For instance,
a glycol concentration of 15% will provide freeze
protection to the unit down to -5°C, but it might generate
additional corrosion.

Trane CONQUEST CGAX Series Specifications

General

Brand	Trane
Model	CONQUEST CGAX Series
Category	Heat Pump
Language	English