PlansTYPICAL WIRING DIAGRAM FOR EXHAUST FAN AND MAKE UP AIR SYSTEM
ELECTRICIAN:
1. THE TWO FAN MOTORS MUST BE WIRED TO OPERATE AT THE SAME TIME AND THAT
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THE EVAPORATIVE COOLER PADS SHOULD NOT OPERATE IN THE WINTER.
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2. IF THE EXHAUST FAN AND THE EVAPORATIVE COOLER ARE BOTH 2 SPEED THEY
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SHOULD BE WIRED TO OPERATE ON BOTH SPEEDS IF EITHER ONE IS R SINGLE SPEED,
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THE OTHER SHOULD BE WIRED ON THE HIGH SPEED IF IT IS 2 SPEED.
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3. NOTE THAT THE EXHAUST FAN IS REMOVED EVERY 6 MONTHS FOR CLEANING AND
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SHOULD BE ELECTRICALLY CONNECTED SO AS NOT TO REQUIRE THE REMOVAL OF
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THE WIRING TO REMOVE THE FAN. IE: 4' 0' MIN OF WATER TIGHT FLEX FROM THE FAN
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TO THE DISCONNECT LOCATED NEAR THE FAN/ CURB.
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4. SOME JURISDICTIONS REQUIRE A PROOFING SWITCH ON THE MAKE UP AIR TO
CONTROL THE EXHAUST FAN IF THE MAKE UP AIR CEASES TO OPERATE. IT IS THE
RESPONSIBILITY OF THE
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ELECTRICIAN TO DETERMINE THIS.
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5. A MAGNETIC SWITCH MAY BE REQUIRED TO OPERATE BOTH UNITS ON SEPARATE
BREAKERS.
6. THESE NOTES ARE FOR YOUR CONVENIENCE ONLY ONLY AND OTHER WAYS MAY
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BE REQUIRED TO ACCOMPLISH THE.OPERATION OF THESE UNITS. THIS IS ALSO THE
RESPONSIBILITY OF THE ELECTRICIAN.
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