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Blinking / slow pulsing – MagentaBog'liq Fracsun ARES CS5 Install Manual, revABlinking / slow pulsing – Magenta
Upgrading firmware / Device OS.
varies
Figure 9-1: ARES external LED location
Installation Manual - ARES CS5 with cellular mode, rev.A
Page 10 of 16
10.0 Wash Extension Installation
10.1 Rinsing fluid
10.1.1 Fluid type
The wash extension can hold up to 16 gallons of rinsing fluid. The fluids list below are highly
recommended for high soiling accuracy. Under no circumstances should tap water be used. Tap water
contains minerals that will build up on the solar glass after each wash, affecting the irradiance
measurement and soiling accuracy.
• Distilled water
• Filtered water (RO + DI preferred) with a TDS (total dissolved solids) value of less than 20 ppm
10.1.2 Number of days
Each rinse uses roughly 5 ounces of water per spray, allowing for about 360 rinses. A future firmware update to
ARES devices will disable rinse events on rainy days, reducing the tank refill frequency.
10.1.3 Low tank alert
A liquid level sensor is installed inside the 16 gallon tank. When the sensor is triggered, a “low tank alert” is sent to
the Fracsun cloud and you will receive an update via Email and the Web Portal. You will have approximately 60 days
to refill the tank before it is completely dry. If rinsing does not occur, the soiling accuracy will be in jeopardy.
10.2 Where to install the Wash Extension
The Wash Extension needs to be installed on the ground (or roof) adjacent to the ARES hardware. The equipment
includes 8 feet of flex tube and communication cable for this purpose. Best practices include installing a service loop
along this length to prevent water from the system flowing against the connections to the enclosure.
10.2.1 Ground application using the bottom support
bracket
If installing into dirt, the threaded ground spikes will both lift the
Wash Extension above the ground and allow leveling of the unit. If
the ground is soft enough the bracket can be attached first and the
whole unit can be pressed into the ground and leveled while
assembled, from the top. If the soil is compact and difficult to drive
into, the bracket can be hammered into place and leveled before
placing the tank on top.
10.2.2 Roof application
For roof mounted systems, leave the mounting bracket off and place the Wash Extension directly on the roof thereby
spreading the weight more evenly. Use of slip sheets is recommended to prevent unwanted wear to the roof
membrane.
The net weight of the Wash Extension is 161 pounds when full and has a contact area of 1.92 ft
2
. The equates to a
structural roof dead load of 83.85 psf. This can be mitigated by partially filling the tank, though this will require more
refilling than the designed annual schedule. Always ensure that the loading capacity of the roof will meet the
demands of the Wash Extension.
Figure 10-1: Wash Extension bottom support
bracket and ground spikes
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