| Item #: | 21-841 | Price: | $5,469.25 | |
| Ship Qty: | 1 EACH | Catalog Page: | 77 | |
| Ship Weight: | 102 lbs. | PC # | CHC-15-8507 |
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COMMERCIAL ELECTRIC POOL/SPA HEATER, 57 KW, 240 VOLT, 3 PHASE, PHS SERIES — Medium duty pool and spa heaters with built-in flow switch. Operating range: 20-80 gpm. Includes: Incoly heating elements, stainless tank, digital thermostat, manual reset hi-limit switch, flow switch, and element, flow and high temp "on" lights. 36 KW and higher units (PHS
Series) have 2" male NPT connections. UL listed for indoor/outdoor installation.
Electric Spa Heater Sizing: KW required = Gallonage x 8.3 lbs./gal. x TEMP rise (in °F/Hr.) / 3413
Electric Pool Heater Sizing: KW required = Surface Area x TEMP differential (°F) x 12 / 3413
Heat Loss Factor: For use in electrical pool heater sizing formula above. 12 = outdoor pool or 10 = indoor pool
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