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).
Remedial action can then be taken to stop and replace the lost gas.
2. EXTERNAL CONNECTIONS
All external connections are made to the motherboard through a cable gland. A cable tie should be fitted within 20mm of the cable gland inside the enclosure. The connectors will accept wire of
Note: Earth connection must be made when using the vented metal enclosure or Exd enclosure. The safety of this equipment is dependent on the integrity of the power supply and the earthing of the enclosure.
On power up the sensor may take some time (minutes up to hours) to fully normalize. You can monitor this by checking the
Figure 1. External Connections
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