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GAS LEAK DETECTOR INSTALLATION & USER 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 gas and notify a monitoring system or provide a local indication (i.e. audible or visual signal).
GAS LEAK DETECTOR INSTALLATION & USER GUIDE 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 shown on Fig.
GAS LEAK DETECTOR INSTALLATION & USER GUIDE Low-level relay set at 500 PPM, NO, Auto reset mode Relay 1 High-level relay set at 900 PPM, NO, Auto reset mode. Relay 2 Delays on both alarm outputs are 0 minutes (no delay). CON 1: Power Supply input Power on indicated by Green LED.