Comet XRC-4501-OA User manual

COMET AG Herrengasse 10, CH-3175 Flamatt
Tel. [phone], www.comet-xray.com
XRC-4501-OA, Doc.-No. 50005551 Page 1 of 14
Industrial X-Ray
Cooler Manual XRC-4501-OA
4500 Watt oil to air cooler

COMET AG Herrengasse 10, CH-3175 Flamatt
Tel. [phone], www.comet-xray.com
XRC-4501-OA, Doc.-No. 50005551 Page 2 of 14
Document history
Version
Date
Author
Amendment(s)
Status
12/15/2008
S. Haferl
released
1.0
07/22/2010
M. Schmid
Layout / Structure
07/22/2010
S. Haferl
released
2.0
08/19/2010
M. Schmid
Outline drawing
3.0
10/28/2011
M. Schmid
Bypass installation
4.0
10/30/2012
R. Moser
Layout / Structure
5.0
07/01/2013
R. Moser
Update Chapter 3

COMET AG Herrengasse 10, CH-3175 Flamatt
Tel. [phone], www.comet-xray.com
XRC-4501-OA, Doc.-No. 50005551 Page 3 of 14
Contents
1Before you start 4
2Product Description 5
3Technical data 6
3.1 Physical dimensions 6
3.2 Performance data 6
3.3 Environmental specifications 6
3.4 Settings 6
3.5 Performance data and overview 7
4Installation 8
4.1 Thermostat 9
4.2 OMF Filter 9
5Maintenance 10
6Outline Drawing 11
7Circuit Diagrams 12
7.1 Electrical Diagram 12
7.2 Flow diagram 13
8Declaration of conformity 14
Industrial X-Ray

COMET AG Herrengasse 10, CH-3175 Flamatt
Tel. [phone], www.comet-xray.com
XRC-4501-OA, Doc.-No. 50005551 Page 4 of 14
1 Before you start
Read manual before setting into operation!
Coolant: Oil, Shell Diala S3 ZX-I
Power supply 230 V 50/60 Hz!
Run cooling unit always with correct coolant level otherwise cooling
capacity is reduced!
Clean filter regularly according to maintenance instructions,otherwise
damage of pump may occur!
Never operate cooling unit when ball cock is closed, otherwise dam-
age of pump may occur!
Only use cooling hoses with sufficient pressure resistance and with
resistance to used coolant!
Never operate damaged or leaking equipment!
Before starting any service work disconnect the cooling unit from the
mains.

COMET AG Herrengasse 10, CH-3175 Flamatt
Tel. [phone], www.comet-xray.com
XRC-4501-OA, Doc.-No. 50005551 Page 5 of 14
2 Product Description
The cooling aggregate XRC-4501-OA serves for cooling the oil circulation system. Oil circu-
lates in a circuit between the heat source and the cooling unit. The oil is re-cooled by means
of an air-cooled heat exchanger.
Cooling hoses are connected to the cooling unit using screwed connections (M26 x 1.5).
Oil inlet and oil outlet are identified with Oil In (red) and Oil Out (blue)
The flow monitor, with two adjustable switch selector heads, monitors the circulation quatity.
The oil outlet temperature is monitored by means of a thermostat. In case of oil temperature,
oil level or oil flow exceeding setted values, the safety circuit opens.
The cooling capacity depends on the ambient temperature. It has a value of 4500 W, with a
difference between oil outlet and ambient temperature of 11 °K.

COMET AG Herrengasse 10, CH-3175 Flamatt
Tel. [phone], www.comet-xray.com
XRC-4501-OA, Doc.-No. 50005551 Page 6 of 14
3 Technical data
3.1 Physical dimensions
Length: 770 mm
Width: 340 mm
Height: 535 mm
Weight 53 kg, without filling
Filling volume: 12.5 l, operation filling 7.2 l (6.3 kg)
3.2 Performance data
Cooling capacity: 4500 W (ΔT ≤ 11 °K)
Pump performance: > 14 l/min at < 8 bar (max. 25 l/min at 3.5 bar)
Mains connection: 230 V (-15% to +10%) 48 to 62 Hz
Input power: 0.785 kW (Pmax; 230 V; 50 Hz)
1.058 kW (Pmax; 230 V; 60 Hz)
Noise level: 65 dB(A) at 1 m distance
Airflow at 50Hz (60Hz): 2200 m3/h (2600 m3/h)
Safety class: IP 33
3.3 Environmental specifications
Operational temperature: -10°C…+ 40 °C
Storage temperature without oil: -25°C…+ 70 °C
Relative humidity: 20%...90% non condensing
3.4 Settings
Maximum forward pressure: 9.5 bar
Flow switch open: < 14.0 l/min
Flow switch close: > 15.5 l/min
Thermal switch open: > 50°C
Thermal switch close: < 47°C

COMET AG Herrengasse 10, CH-3175 Flamatt
Tel. [phone], www.comet-xray.com
XRC-4501-OA, Doc.-No. 50005551 Page 7 of 14
3.5 Performance data and overview
Cooling capacity in kW
Electrical connector
OIL OUT
OIL IN
Temperature difference: forward - ambient

COMET AG Herrengasse 10, CH-3175 Flamatt
Tel. [phone], www.comet-xray.com
XRC-4501-OA, Doc.-No. 50005551 Page 8 of 14
4 Installation
Install the device so that the air intake and exit are not covered (otherwise impairment of the
cooling capacity occurs). A minimum distance of 0.80 m must be kept free on the air outlet
side.
Remove covers from connection hose nipples (red and blue)
Connect cooling hoses. When tightening up the hose fittings, tighten the connections to
the aggregate with an open-ended wrench; likewise when loosening.
Establish electrical connection of the aggregate to the Comet generator power
module
Open back facing
Remove transport plugs and close off with ventilation plug (labeled OIL)
Open bypass
Let the system run for 10 minutes to vent air
Close bypass
If necessary, refill oil until level is
higher than black line of inspec-
tion glass
Close back facing

COMET AG Herrengasse 10, CH-3175 Flamatt
Tel. [phone], www.comet-xray.com
XRC-4501-OA, Doc.-No. 50005551 Page 9 of 14
4.1 Thermostat
Temperature increase: Rotate clockwise
Temperature decrease: Rotate anti-clockwise
Please note that the thermostat is factory adjusted and
sealed.
4.2 OMF Filter
We highly recommend using the OMF oil molecular filter unit with the XRC-4501
OA cooler.
We supply our bipolar XRS-Modules with OMF filter as a standard.
For detailed information please refer to the corresponding manual of
the OMF filter.

COMET AG Herrengasse 10, CH-3175 Flamatt
Tel. [phone], www.comet-xray.com
XRC-4501-OA, Doc.-No. 50005551 Page 10 of 14
5 Maintenance
The cooling capacity is significantly impaired by dirt accumulation of the cooling lamellae. The
heat exchangers are to be regularly examined for soiling (if required daily, approx. 1x weekly)
and, if necessary, cleaned.
■Remove back panel covering
■Remove any accumulated dirt from the heat exchanger, working towards the inlet
direction (if compressed air is available, blow out from inside to outside, otherwise use a
vacuum cleaner).
The cooling circuit is an open system. Evaporation of the refrigerant is therefore possible.
Check the filling level in the container regularly and refill
where appropriate.
■Check dirt filters in the suction pipe of the pumps and
clean if required
■Change oil filters
The filter should be changed corresponding to the red/green
differential pressure display. Check the display at every
maintenance interval and change if necessary.
Indication display
Early warning of
the filter status