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7.
Connect Temperature Sensor Leads
Connect temperature sensor leads as shown on page 20 and 26. Ensure the leads are protected from
sunlight. The sensors must be sealed in place with thermoplastic putty or silicon.
It is important that these leads are installed as specified. Failure to do so will lead to malfunction or lack of
hot water.
8.
Fill the System
Ensuring the power supply to the pump is off; turn on a hot water outlet tap(s). Remove the screw from the
pump to allow air to bleed out. Open the stop cock in the cold water mains supply line. The entire system will
fill with cold water. Once the pump is no longer bleeding air, replace the screw and continue to bleed the air
through the taps.
Turn off the hot tap at the sink when water flows freely without air bubbles or air bursts.
Air should be bled from the collectors by temporarily loosening a fitting at the outlet of each collector array.
9.
Adjust Pump Speed
Adjust the pump to the speed specified on page 13.
10. Check for Leaks
Check all connections for leakage and tighten if necessary. This is especially important for all fittings in
positions not easily accessed such as near the solar collectors. Operate the easing gear of both PTR and
ECV valve at the storage cylinders to ensure these valves are functional.
If leaks are detected the system must be drained and leaks repaired before the system is
refilled. If this is necessary, cover the solar collectors with packaging cardboard or a tarp to
prevent them from heating which could result in steam or hot water being discharged from
CAUTION
fittings
11. Power up the Controller
Power up the controller, which should be factory set to the desired operating parameters, and observe for any
unlikely immediate errors. An error at this point usually refers to something that has been missed during the
installation procedure. Refer to the separate manual supplied with the controller for more details.
12. Finishing the Installation
Ensure that the set temperature on the gas boosting is set to 60°C or above for a Demand Duo or 70°C or
above for a Manifold Pack.
Ensure that the delivered temperature of the water to the building complies with all relevant regulations.
Rinnai
11
INSTALLATION
DD FP Solar Pre Heat System OIM
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