Honeywell SN0500 manual

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Table of contents for the manual

  • Page 1

    SN0500 / SN0501 REFRIGERANT GAS LEAK DETECTOR INSTALLATION / USER GUIDE Copyright © 2004 Honeywe ll Control Systems Ltd. All Rights Reserved EN1B-0014UK07 R0404[...]

  • Page 2

    GAS LEAK DETECTOR INSTALLATION & US ER GUIDE CONTENTS 1. INTRODUCTION .................................................................................................... 3 2. EXTERNAL CONNECTIONS ................................................................................. 3 3. POWER SUPPLY .................................................[...]

  • Page 3

    GAS LEAK DETECTOR INSTALLATION & US ER GUIDE 1. INTRODUCTION The Honeywell Refrigerant Gas Detection sensors, SN0500 (for refrigerant R404a) and SN0501 (for refrigerant R410) are used to detect the leakage of refrigerant g as and notify a monitoring system or provide a local indication (i.e. audible or visua l signal). Remedial action can then [...]

  • Page 4

    GAS LEAK DETECTOR INSTALLATION & US ER GUIDE 3. POWER SUPPLY The Power supply is connected at Con 1 (see Fig. 1) Green LED on - shows power connected. Pin 1 = 0V, Pin 2 = 12 to 24 VAC or 12 to 30VDC, Pin 3 = Earth. The 0V (pin 1) on the power supply terminal block (CON 1) can withstand 50V AC or DC with respect to the 0V (Pin 1) on the output t[...]

  • Page 5

    GAS LEAK DETECTOR INSTALLATION & US ER GUIDE 5. RELAY CONTACTS Note: If changing any jumper - power must be removed. There are two relays rated up to 1 Amp at 24V DC/AC. The status of the relays is jumper selectable. Relay 1 at Con 6. Low-level alarm. Yellow LED on when in alarm. Normally closed when JP4 link inserted, JP3 link removed, as show[...]

  • Page 6

    GAS LEAK DETECTOR INSTALLATION & US ER GUIDE 7. STANDARD DEFAULT SETTINGS Relay 1 Low-level relay set at 500 PPM, NO, Auto reset mode Relay 2 High-level relay set at 900 PPM, NO, Auto reset mode. Delays on both alarm outputs are 0 minutes (no delay). CON 1: Power Supply input Power on indicated by Green LED. Supply voltages to be either 12V to [...]

  • Page 7

    GAS LEAK DETECTOR INSTALLATION & US ER GUIDE 8. CONNECTIONS AT A GLANCE Connector Pin Description CON1 1 0V Supply Voltage. CON1 2 24V Supply Voltage. CON1 3 Earth. CON2 1 Display Connection – not used. CON2 2 Display Connection – not used. CON2 3 Display Connection – not used. CON2 4 Display Connection – not used. CON2 5 Display Connec[...]

  • Page 8

    Automation & Control Solutions Refrigeration Control Newhouse Industrial Estate Motherwell Lanarkshire ML1 5SB Phone: (44) 01698 481698 Fax: (44) 01698 481699 www.honeywell.com/refrigeration Subject to change without notice. EN1B-0014UK07 R1204[...]