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Caleffi SolarCon Storage Tank - 50 Gallon Tank - NAS20053
- Single Lower Coil - Electric Element Boost
Product ID • NAS200530000
Overview
The Caleffi solar water heater NAS20053 50 Gallon Tank has one internal coil and a backup electric heating element. A heating medium is passed through the solar panels and internal coil as long as there is an adequate temperature difference between the heating medium and stored water in the tank. The internal coil is located as close to the bottom to facilitate the transfer of heat even at lower solar panel temperatures.
During periods of water flow through the water heater. hot water is drawn from the top of the heater and cold water comes into the bottom of the tank (by a dip tube or bottom inlet). On the NAS20053 single coil tank, if the hot water demand should exceed the solar heat input or there is an insufficient temperature difference between the heating medium and stored water, the heating element thermostat will activate the electrical heating element for backup heat.
Manuals & Docs
Technical Specs
Caleffi SolarCon Storage Tank - 50 Gallons NAS20053 Tech and Specs
- Lower Hot Water Coil
- Yes
- Electric Element Boost (Backup)
- Yes
- Actual Tank Volume Amount
- 45 gallons
- Tank materials
- Porcelain coated steel
- Tank insulation
- 2 Inches non-CFC foam
- Tank external cover
- Powder-coated steel (20-24 ga.)
- Insulation thermal conductivity
- R16
- Anode rods
- 2 each magnesium
- Internal heat exchaner coil (lower)
- 1-1/2 inches by 30 feet
- Connections
- 3/4 Inch NPT
- Maximum working pressure
- 150 psi
- Testing pressure
- 300 psi
- Temperature and pressure relief valve
- 210°F / 150 psi max
- Maximum tank temperature
- 180 Degree F
- Recommended maximum delivery hot water temperature
- 120 °F
- Power requirements (electric element)
- 240 VAC
- Power consumption (electric element)
- 4.5 KW
- Coil Volume Solar / Boiler
- 2.3 gallons
- Coil Surface Area Solar / Boiler
- 11.78 (sq feet)
- Coil Friction Loss Solar / Boiler
- .50 (feet of head)
- First Hour Rating
- 91 gallons
- Recovery Rate Solar & Backup
- 51 gallon per hour
- Standby by loss
- 1.1 F Degree per hour
- Agency approval
- UL listed
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