Comet XRC-3001-WA User manual

COMET AG
Herrengasse 10, CH
-
3175 Flamatt
Tel. [phone], www.comet-xray-com
X C-3001-WA, Doc.-No. 50005550 Page 1 of 13
Industrial X-Ray
Cooler Manual XRC-3001-WA
3000 Watt water to air cooler

COMET AG
Herrengasse 10, CH
-
3175 Flamatt
Tel. [phone], www.comet-xray.com
X C-3001-WA, Doc.-No. 50005550 Page 2 of 13
Document history
Version Date Author Amendment(s) Status
12/15/2008 St. Haferl released
1.0 07/22/2010 M. Schmid Layout / Structure
07/22/2010 St. Haferl released
2.0 05/18/2011 M. Schmid Technical Details
.0 10/ 0/2012 R. Moser Storage temperature
4.0 07/01/201 R. Moser Update Chapter
5.0 01/12/2015 M. Schmid New electrical drawing

COMET AG
Herrengasse 10, CH
-
3175 Flamatt
Tel. [phone], www.comet-xray.com
X C-3001-WA, Doc.-No. 50005550 Page 3 of 13
Contents
1 Before you start 4
2 Product Description 5
Technical data 6
.1 Physical dimensions 6
.2 Performance data 6
. Environmental specifications 6
.4 Settings 6
.5 Performance data and overview 7
4 Installation 8
4.1 Antifreeze concentration 8
5 Maintenance 9
6 Outline Drawing 10
7 Circuit Diagrams 11
7.1 Electrical diagram 11
7.2 Block diagram 12
9. Declaration of conformity 1
Industrial X-Ray

COMET AG
Herrengasse 10, CH
-
3175 Flamatt
Tel. [phone], www.comet-xray.com
X C
-
3001
-
WA,
Doc.
-
No. 50005550
Page
4
of
13
1 Before you start
 Read the manual before setting into operation!
 Coolant: Water or water-glycol mixture (max. 1:1 water - glycol
 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, other-
wise 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
X C-3001-WA, Doc.-No. 50005550 Page 5 of 13
2 Product Description
The cooling unit XRC- 001-WA is designed for the cooling of a water circuit. The
coolant can be water or a mixture of water and antifreeze (water-glycol). Water circu-
lates between the cooling unit and the heat source. The water is re-cooled by an air-
cooled heat exchanger.
The system pressure is limited by a bypass valve.
Cooling hoses are connected to the cooling unit via Walther couplings.
Coolant inlet and outlet are marked with the labels:
Inlet:
O
↓
; Outlet:
O
↑
The water flow is monitored by an adjustable flow switch, the water temperature by a
thermal switch. The contacts of the flow switch and the thermal switch are available
as potential free signals on the internal terminal block: safety circuit. Both contacts
are connected in series as one common error signal on the external Cannon con-
nector. The contact is open when:
 The water flow is below the minimal set value
 The temperature of the coolant is higher than the maximal set value

COMET AG
Herrengasse 10, CH
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3175 Flamatt
Tel. [phone], www.comet-xray.com
X C-3001-WA, Doc.-No. 50005550 Page 6 of 13
3 Technical data
3.1 Physical dimensions
Length: 483 mm
Width: 406 mm
Height: 481 mm
Weight: 38.5 kg without filling
Coolant capacit : 4.0 l
3.2 Performance data
Cooling capacit : 3000 W (∆T ≤ 11 °K)
Flow rate: ≥ 5.4 l / min at 4 bar
Mains voltage: 230 V + 10% - 15% 48 - 62 Hz
Current consumption: ≤ 2.6 A
Noise level: 55 dB(A) (50 Hz) distance 1m in an direction
59 dB(A) (60 Hz) distance 1 m in an direction
Airflow at 50Hz (60Hz): 2200 m
3
/h (2600 m
3
/h)
Safet class: IP 33
3.3 Environmental specifications
Operational temperature: -10°C...+ 40°C
(use antifreeze if ambient temperature is below 10°C)
Storage temperature: -25°C...+ 70°C (store with antifreeze)
Air humidit : 20%...90% non condensing
3.4 Settings
∗
Maximum forward pressure: 6.7 bar
Flow switch open: < 4.0 l/min
Flow switch close: > 4.2 l/min
Thermal switch open: > 50°C
Thermal switch close: < 45°C
∗
This setting value is optimized for our XRS modules

COMET AG
Herrengasse 10, CH
-
3175 Flamatt
Tel. [phone], www.comet-xray.com
X C
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Doc.
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13
3.5 Performance data and overview
Temperature difference forward
-
ambient
Cooling capacity (in Watt)
Water Drain
Water Outlet
Electrical Connection
Water Inlet
Filler Cap

COMET AG
Herrengasse 10, CH
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X C-3001-WA, Doc.-No. 50005550 Page 8 of 13
4 Installation
 The cooling unit must be positioned upright with sufficient clearance for air circulation
(minimum clearance of 0,5m from the ventilation grid)
 Connect the hoses on the cooling unit, respect the flow direction The maximum hose
length is 20m provided that the cooler and the heat source are on the same level. If
there is a height difference between both, it is shorter.
 If the unit is exposed to ambient temperature below 0°C, prepare about 4.0 l of water
mixed to Glycol according to the concentration table below.
 Open the lid and fill the cooling unit with the cooling mixture (about 4.0 l)
Notice:
The liquid level must be always above the fins, otherwise the cooling capacity will be
reduced !
 Switch on the unit (main switch on the control unit of the X-ray generator). Let the
cooling unit run for about 10 minutes to de-aerate the water circuit then check the
level and refill if required.
 Close the lid
 Connect the electrical cable to the X-ray generator, at the rear of the power unit
4.1 Antifreeze concentration
It is essential that the correct antifreeze mix is added. The recommended antifreeze
product is Ethylenglycol. See the table below for your guidance. Consult your anti-
freeze supplier for Ethylenglycol.
Concentration by volume (%) Approximate freezing point
(ºC)
20 -9
25
-
2
30 - 5
50 -25

COMET AG
Herrengasse 10, CH
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X C-3001-WA, Doc.-No. 50005550 Page 9 of 13
5 Maintenance
Regularly check the water level and refill if necessary.
Heat exchanger
In order to achieve the maximum cooling capacity, keep the heat exchanger of the
cooling unit clean. Regularly check it and if necessary clean it:
Proceed as following:
 Disconnect cooling unit from the mains
 Remove complete cover
 Remove dust by forcing it out in the opposite direction from which it entered. If
compressed air is available, direct the air against the inside of the heat exchanger
 Mount cover
Pump
About ever 6 months check the filter of the pump for clean condition, if necessar more often.
For this proceed as following:
Note: If the filter is not in clean condition damage of pump and motor may occur!
Proceed as following:
 Disconnect cooling unit from the mains
 Remove cover
 Close ball cock
 Unscrew filter cap
(24 mm nut)
ote: Some water will run out of
pump. Collect the water with suitable vessel!
 Clean filter if necessary or replace filter
 Insert filter and mount cap
 Open ball cock
Attention: Never operate cooling unit when ball cock is closed,
otherwise damage of pump may occur!
 Mount cover
 Run cooling unit to deaerate cooling circuit (see Setting to work)
 Check water level and refill if necessary
Placing out of operation/Service/Repair
 Disconnect cooling unit from the mains
 Remove hoses
 Remove cap and drain of coolant, collect with suitable vessel
 Mount cap



COMET AG
Herrengasse 10, CH
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3175 Flamatt
Tel. [phone], www.comet-xray.com
X C-3001-WA, Doc.-No. 50005550 Page 10 of 13
6 Outline Drawing

COMET AG
Herrengasse 10, CH
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3175 Flamatt
Tel. [phone], www.comet-xray.com
X C-3001-WA, Doc.-No. 50005550 Page 11 of 13
7 Circuit Diagrams
7.1 Electrical diagram
Attention: The cooler has to be fused when used as a stand alone unit with 4A, slow
blow type. The default plug is a Cannon plug.

COMET AG
Herrengasse 10, CH
-
3175 Flamatt
Tel. [phone], www.comet-xray.com
X C
-
3001
-
WA,
Doc.
-
No. 50005550
Page
12
of
13
7.2 Block diagram

COMET AG
Herrengasse 10, CH
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3175 Flamatt
Tel. [phone], www.comet-xray.com
X C-3001-WA, Doc.-No. 50005550 Page 13 of 13
. Declaration of conformity