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Minneapolis
Solar Water Heating Package
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Minneapolis
Package consists of:
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30
Thermomax tubes
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One
MAZ 2-30 S Manifold with Slope Roof Racks
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One
3-Speed Super Brute Grundfos UP 15-58FC Pump
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One
USDT Controller
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One
4.4 Gallon High Temperature Extrol Expansion Tank
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| General
Information |
Closed Loop Solar Heating
Systems are suitable for areas with questionable water quality and all
climate conditions. The Closed Loop Solar Heating Systems are the
preferred option for extremely cold areas.
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| 1. Collector |
7. Check Valve |
12. Pressure
Relief Valve |
| 2. Collector
Sensor |
8. Hose Bibs for
Filling and Flushing |
13. Pressure
Gauge |
| 3. Manual Air
Valve |
9. Expansion
Tank |
14. Collector
Supply |
| 6. Collector
Return |
11. |
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| Operation |
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The USDT
Controller will switch on the pump when the
temperature at the collector sensor TC is higher than
the return temperature TR by at least the pre selected
amount.
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The pump
circulates a heat transfer fluid around the loop.
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Heat from the
collector is transferred to the storage tank through the heat
exchange coil.
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With the pump running,
if delta T is less than preset value, the pump will switch off.
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When a preset tank
temperature is reached at TMAX, the controller
can switch off the pump.
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The check valve (non-return
valve) prevents heat from the tank rising towards the collector
should the tank be warmer (e.g. at night).
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