Seventh Day Adventists
Seventh-Day Adventist School The hot water system at this school will be for kitchen usage. An 80 gallon thermosiphon system will be installed on the roof of the building adjacent to the kitchen and plumbed to a conventional electric water heater. The existing electric water heater will be replaced with a new 40 gallon electric water heater. |
| SYSTEM INFORMATION | |
|---|---|
| System type: | 80 Gallon Thermosiphon System |
| Number of systems: | 1 each |
| Collector: | 1 each flat-plate 4 x 10 (or 4 x 8) collector |
| Minimum FSEC Collector Intermediate Rating: | 27,300 Btu per day |
| Auxiliary water heater: | Replace existing water heater with new 40 gallon electric water heater. The thermosiphon system will not require an internal element. |
| Required tilt angle | ±18 Degrees. Mounted on flat roof. |
| SITE INFORMATION | |
|---|---|
| Location: | St. Croix |
| Solar access at roof mounting location | Unobstructed - Uninterrupted solar access |
| Solar orientation at roof mounting location | South |
| Roof material | Metal corrugated roof |
| Roof trusses | 4' on center trusses |
| Roof pitch | Flat |
| Roof condition | Suitable for installation |
| Access to attic | Not applicable. System will be installed on roof of building adjacent to kitchen building and plumbed outdoors on roof surface/building side/through concrete wall into kitchen building where water heater is located. |
| Distance from collector location to water heater | Horizontal - 25 feet Vertical - 10 feet |
| Location of water water heater | Large room adjacent to kitchen. |
| Existing water heater | Existing water heater will be replaced. |
| Water heater drain valve | Drain valve is accessible |
| Hot water outlet line from tank | 1/2" copper piping |
| Cold service line to tank | 1/2" copper piping |
| Cold service line to tank isolation valve | Valve is installed but needs to be replaced due to age in condition. |
| Water system | Cistern |
| SPECIAL CONDITIONS | |
|---|---|
| Water heater | Replace existing water heater. Provide local code acceptable conduit for electrical wiring to water heater. |
| Collector loop piping | Some piping from a previous solar system that was installed at this site remains. The installer could use certain portions to complete the installation. See photographs. |
| Monitoring equipment | A solar system BTU meter and water heater watthour meter will be installed at this site. |
Note: Please also see the general program specification requirements.
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