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4025350/6
Installation and Maintenance Instructions
LC2300
>100%
IM-P402-72 AB Issue 6
Printed in the UK
LC2300
Level Controller
>50%
<0%
1. General
safety information
2. General
product information
3. Installation
4. Setting up the
controller
5. Wiring diagrams
6. Commissioning
7. Maintenance
8. Fault finding
IM-P402-72
AB Issue 6
© Copyright 2003
1
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Related Manuals for Spirax Sarco LC2300
Summary of Contents for Spirax Sarco LC2300
- Page 1 4025350/6 IM-P402-72 AB Issue 6 LC2300 Level Controller Installation and Maintenance Instructions 1. General safety information LC2300 2. General product information 3. Installation >50% 4. Setting up the controller >100% <0% 5. Wiring diagrams 6. Commissioning 7. Maintenance 8. Fault finding...
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Page 2: General Safety Information
1. General safety information Your attention is drawn to the Safety Information leaflet, IM-GCM-10, as well as to any National or local regulations. Safe operation of the product depends on it being properly installed, commissioned and maintained by a qualified person in compliance with the operating instructions. It is essential to comply with general installation and safety instructions for pipeline and plant construction, as well as to make proper use of tools and safety equipment. -
Page 3: General Product Information
The LC2300 can also be used with any two-wire 4 - 20 mA transmitter, for example for pressure, temperature, or level control using a pressure or differential pressure transmitter. - Page 4 Technical data Maximum ambient temperature 55°C (131°F) Minimum ambient temperature 0°C (32°F) Pollution degree Overvoltage catagory Indoor use only Altitude 2 000 m (6 561.5 ft) Maximum relative humidity 80% for temperatures up to 31°C (87.8°F) Humidity decreasing linearly to 50% relative humidity at 40°C (104°F). Protection rating IP40 230 V setting...
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Page 5: Installation
The controller must be installed in a suitable industrial control panel or fireproof enclosure to provide impact and environmental protection (pollution degree 2). Spirax Sarco can provide suitable plastic or metal enclosures (for the standard controller only). -
Page 6: Setting Up The Controller
4. Setting up the controller 4.1 Setting up the controller Fig. 2 The controller is supplied set up as follows: 230V mains supply. Capacitance probe input (voltage). Reducing output with increasing input. 4 - 20mA output. Transformer Wave filter position 1 (minimum damping). 4.2 To change the mains supply voltage: Unplug the controller from its base. - Page 7 4.7 Wave filter - Switches 7 and 8 This feature averages the signal over a longer period for conditions where waves and high turbulence may otherwise cause continuous oscillation of the output signal, giving over-frequent valve movement. The unit is supplied set to Filter 1 position, the least damped response, with Switches 7 and 8 OFF.
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Page 8: Wiring Diagrams
Ensure that the screen is connected to the earth terminal of the PA20 and to the common terminal of the controller. Ensure the common terminal of the controller is not internally earthed. (All Spirax Sarco boiler controls are internally isolated from earth). - Page 9 This earth terminal is internally connected to the PA20 body and earthed by the LP20 probe. Do not connect this earth terminal or LC2300 terminal 20 to other earths. Ensure resistance from probe body to pipework /boiler shell is less than 1 W. Fig. 4...
- Page 10 5.3 Wiring diagram UL version PA20 preamplifier and LP20 capacitance probe (see PA20 and LP20 Installation and Maintenance Instructions) LC2300 controller Termination Screen Brown 11 IN 1 Orange Common Black See CAUTION in Section 5.1. See PA20 Installation and Maintenance Instructions...
- Page 11 Connect wiring as shown in the Figures 8, 9 and 10. Note: As an example, terminal numbers and switch positions of a second LC2300 are shown. Wiring connections for other Spirax Sarco controllers/ transmitters are different, and are given in the individual Installation and Maintenance Instructions.
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Page 12: Maintenance
6. Commissioning In order to simplify the description these instructions refer to boiler water level control applications (fill control). The set point is in the middle of the control band of a proportional controller. The modulating control valve will be approximately half open when the level is at the set point, will be fully open when the level is at the bottom of the proportional band, and fully closed when the level is at the top of the band.
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