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Summary of Contents for S&S Northern Merlin PM2+
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Page 1: User Guide
Merlin PM2+ User Guide Gas Safety Products Merlin PM2+ Dual Current Monitor User Guide Please read this guide carefully and retain for future use. Rev: 2 05-19... -
Page 2: Table Of Contents
Merlin PM2+ User Guide Table of contents General Information ..................3 Panel Mounting ......................3 Circuit Board Terminals ..................4 POWER ........................... 4 FAN 1 & FAN 2 LIVE – Current monitoring ..............4 How to setup the current monitors ..............5 Setting the minimum &... -
Page 3: General Information
Merlin PM2+ User Guide General Information The Merlin PM2+ Current Monitor is a duel fan current monitor and is to be used in conjunction with the Merlin systems: the unit can be used as an alternative to an air pressure differential switch. -
Page 4: Circuit Board Terminals
Merlin PM2+ User Guide Circuit Board Terminals POWER A 12v DC electrical supply should be supplied using the [+ - 12/24 VDC Power]. FAN 1 & FAN 2 LIVE – Current monitoring Located at the bottom of the main circuit board there are two terminals for fan current monitoring, and these are marked up as [FAN 1 LIVE IN / OUT] &... -
Page 5: How To Setup The Current Monitors
Merlin PM2+ User Guide How to setup the current monitors Setting the minimum & maximum fan current. Turn Fan 1 (F1) switch to ON position. The LCD screen will show Fan 1 current. ! - means Fan1 has not yet been calibrated. ... -
Page 6: Specification
Merlin PM2+ User Guide Repeat to adjust HIGH threshold as follows 10. To change the high threshold, press and hold F1 and F2 HIGH buttons together 11. The LCD screen will display ‘Offset H F1 10%’ 12. Select different thresholds by pressing the F1 HIGH button 13. -
Page 7: Pm2+ Wiring Diagram
Merlin PM2+ User Guide PM2+ Wiring Diagram 1. FAN 1 IN / OUT MAX 18AMPS 2. FAN 1 NO/NC VOLT FREE OUTPUT to Merlin panel PD SWITCH terminal. 3. POWER IN 12-24 VDC 4. FAN 2 NO/NC VOLT FREE OUTPUT to Merlin panel PD SWITCH terminal. 5. -
Page 8: Manufacturer's Warranty
Merlin PM2+ User Guide Manufacturer’s Warranty 3 Year Limited Warranty Warranty coverage: The manufacturer warrants to the original consumer purchaser, that this product will be free of defects in material and workmanship for a period of three (3) years from date of purchase. The manufacturer’s liability hereunder is limited to replacement of the product with repaired product at the discretion of the manufacture.
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