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| | | Trac-Master CURRENT LIMITING SUBPANEL | | |
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| | | Two National Firms in Partnership To solve this problem, PacSun called on the expertise of their local Juno Lighting Group National Account Vice President, Michael Dwyer. Juno in turn partnered with California-based lighting control manufacturer, Lighting Control & Design. Working around the clock to meet a nearly impossible schedule, the two companies developed a sub-branch current limiting electrical panel to provide a practical, cost-effective code compliant solution to the problem. Juno and LC&D then worked closely with the California Energy Commission to get early acceptance to avoid delaying the store opening. | | |
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| | | New Current Limiting Panel Wins Instant CEC Approval According to Juno Trac Business Unit Manager Michael McCown: "The California Energy Commission originally agreed to allow us to do several test stores to prove out our concept of placing a current limiting panel between the main load center and the track lighting. After seeing the success of the first PacSun Riverside store, they immediately approved the sub-panel approach as a Title 24 compliant solution." | | |
| | | With. | | :he Trac-Master CURRENT LIMITING SUBPANEL | | |
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| | | | | | | | | | | r | | | | 0 0 — 20A | L [ | | | | \J u — 20A | | | | | | | | | | |
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| | | Branch Circuit Breaker Panel | | |
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| | | Track length determines wattage calculation | | |
| | | 64 ft of track = I I Installed costs and reduced layout flexibility) | | |
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| | | Short Track Segments | | |
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| | | Title 24 would have required PacSun stores to shorten track segments, as shown. Track sections would have been cut in the field, adding cost. More track sections would have required more wiring connections and eliminated lighting flexibility. | | |
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| | | Result Wattage Reduced by 75% According to Cory Meier of Ericksen, Ellison & Associates, PacSun's electrical engineering firm in St. Paul, MN: "The sub-branch current limiting electrical panel as proposed by Juno and LC&D met California Title 24 requirements and was able to reduce the wattage calculation to 8,000 watts - a reduction of over 75% -and retained the lighting flexibility that PacSun needed to accommodate frequent store changeovers." | | |
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| | | CURRENT LIMITING SUBPANEL | | |
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| | | | | | | | | | | | | | | r | | | | 0 0 — 20A Q 0 _ | | 6A | [ | | | | 20A | | 6A | | | | | | | | | | | | |
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| | | Trac-Master | | |
| | | Branch Circuit Breaker Panel | | |
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| | | VA (wattage) rating of the Trac-Master Current Limiting Subpanel supplementary breakers determines wattage calculation Same 100 ft of track: 6A @ 120V = 720W 6A® 120V = 720W | | |
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| | | | 1 mow tn | | | |
| | | Useful Track Lighting | | |
| | | total"! | |
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| | | With the Trac-Master Current Limiting Subpanel, lighting density is not calculated by linear track distance, but by the actual load size for each track. | | |
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