STIEBEL ELTRON SOL 25 PLUS - Manual (Page 32)

32 | SOL 25 PLUS WWW.STIEBEL-ELTRON-USA.COM
8.5 Start-up
Re-tighten all fittings prior to start-up.
Complete the Start-up report (Section 8.6) after the first Start-up.
Set the integral controller to “manual” mode to check whether all
required relays of the solar control unit are connected, according to
the controller’s operating instructions. Then set the control unit back
to “automatic” mode. The system should then start automatically,
subject to all starting conditions being met. If that is not the case,
check in Section 10.0, Troubleshooting, for a possible cause for this
fault. See that the solar system places no excessive temperature or
pressure on auxiliary system.
Have owner check the system daily to observe pressure,
temperature, and flow rate while the pump is on, and to look for
evidence of overflows from pressure relief valves. It is also wise to
continue checking for leaks periodically. Any deviation from normal
should prompt immediate corrective action by the installer.
8.6 Checklist for Start-up Of
Solar Installations
CAUTION: IT IS MANDATORY TO PERFORM THE WORK
IN COMPLIANCE WITH THE “SAFETY REGULATIONS FOR
WORK ON AND INVOLVING ROOFS“ AND THE INSTRUCTIONS
“SAFETY AND RESCUE HARNESSES“ PUBLISHED BY THE TRADE
ASSOCIATION. THESE ASSEMBLY AND OPERATING INSTRUCTIONS
AND THE ASSEMBLY AND OPERATING INSTRUCTIONS FOR THE SOM
CONTROLLER AND THE STORAGE SYSTEM ARE TO BE FOLLOWED
DILIGENTLY DURING THE ASSEMBLY WORK.
On the start-up of solar installations
provided with Stiebel Eltron Flat Plate
Collectors, the following checklist
should be reviewed to help ensure
successful completion of the installa-
tion.
Solar Circuit Yes No
Are the collectors installed in their mounting frames in the proper position and secured tightly (free of play) with the top and the bottom screws?
Has the installation of the pipework between the collectors and the pumping station been performed according to Stiebel Eltron installation
instructions?
Has all the pipework in the solar collector loop been hard-soldered?
Has all the pipework been insulated?
Is the pressure relief safety valve (87 psi) and the vent installed according to Stiebel Eltron installation instructions?
Was the pressure and leak test performed?
Is the solar loop filled using only the premixed 50% GRAS Propylene Glycol and deionized water heat-transfer medium?
Have labels been installed on all valves, tank and pipework?
Are the shut-off valves open, and is the check valve set (per pumping station assembly instructions)?
Is the collector temperature sensor mounted at the specified position at the outlet pipe of the collector(s) and electrically connected to the
controller?
Has the electrical wiring been performed in accordance with the Stiebel Eltron controller wiring diagram?
Is the solar controller set according to the assembly and operating instructions?
Has the test run of the circulation pump been performed? Checked for excessive/unusual noise? Checked for proper heat collection and storage
during insolation?
Hot Water Circuit Yes No
Has the solar storage system (tank) been installed to the domestic water pipes according to Stiebel Eltron instructions and all local regulations?
Has the temperature sensor in the solar storage system (tank) been mounted and electrically connected to the controller according to Stiebel
Eltron instructions and all local regulations?
Has the backup water heater (afterheating or reheating) been tested and properly installed for re-heating?
If so, specify the equipment connected and its temperature settings:
Is the SOM controller properly grounded electrically?
Was the lightning protection equipment connected by authorized skilled personnel?
Is the solar controller set according to the assembly and operating instructions?
Has the test run of the circulation pump been performed? Checked for excessive/unusual noise? Checked for proper heat collection and storage
during insolation?