Catching moments of collecting cool air after sunset

After we had finished installing roof collection panels, air path pipes, air handing unit, system sensors and other related hardware and plumbing parts, we test run the system on daily basis. In the beginning we had problems to run the system in summer night cool air intake mode. After adjusting the system settings and the exterior temperature sensor location, we have successfully run the set C system in the mode.

Beside the blue color on the bottom left corner of the display panel, the true indicator showing the system is working in summer night cool air intake mode is this: the temperature inside the collection panels are LOWER than both the exterior and interior temperatures as a result of the collection panels’ capability of releasing heat further as the cool air is being collected. See two photos of set C’s display on two August 16 and 22: Continue reading “Catching moments of collecting cool air after sunset”

Test running CRE solar HVAC system for set C

After making all electrical connections involving three system built-in solar panels, air handling control board, exterior and air collection temperature sensors (room temperature sensor is built inside the display panel), WiFi setup and connecting the heat exchanging coil in the air handling unit to a water tank, we test run the system in both the summer hot water production mode and the inside air circulation mode with a photo taken for each mode below. Note that the color on the bottom left corner of the system control and display panel changes after switching to a different mode… Continue reading “Test running CRE solar HVAC system for set C”

Install System Solar Panels for Sets A and C, Install Top Covers and BIPV Panels for Set C

In fact the job was done on July 22, 2018 but only to have time to post about it today. See the following pictures and captions for the whole procedure…

First we installed system solar panels for both sets A and C – two panels for each set to power the running of air handling box’s fan and control unit and one for set C to power a DC pump:

System solar panels for set A: two for running the system and one to power DC pump

Continue reading “Install System Solar Panels for Sets A and C, Install Top Covers and BIPV Panels for Set C”

Attending Solar Canada 2018 after finishing installation of heat collector panels

Attending Solar Canada 2018

After finishing installing heat collector panels for both set A and set C (see two pictures for each finished set), one of our installation team could attend the Solar Canada 2018 expo in Calgary – this expo typically hold in Toronto and this year 2018 is the fist time in Calgary and next year 2019 also in Calgary.

set C panels with one row of BIPV panels

Did not see many new and major improvements, for example no solar highway panels, no solar roof shingles, no portable solar products, but there were a few things that worth mentioning… Continue reading “Attending Solar Canada 2018 after finishing installation of heat collector panels”

Solar Green Energy Saving Reno Day 109 at 727 Cassiar Crescent Demo House

It has been long since last update and a lot has been accomplished!

Drywall boarding, mudding, ceiling stippling, wall painting, shelving and door casing, shower booth/toilet/vanity installation etc. have been completed for the second floor, where most reno work takes place. What is left for this floor is hardwood installation, which will be carried out after installing Japan’s OM Solar system.

The plumbing and electrical wiring for the lower level kitchen are done. Hole drilling to let the air pass easily through ceiling joists in mechanical room is done for the most part. Wood strips to support bottled water are nailed in some areas. Ceiling needs to be dropped down and sealed with foam boards and drywall to support at least one person to craw into the heat storage and exchange space formed this way.

Majority products from OM Solar Japan have arrived. For this reason, paths built with plywood are being placed in attic so that the OM handling box and ducts can be installed.

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Front view of this solar heat demo house
727 cassiar cres
Back view from ground – UBC living lab entrance
Overall layout for the entire conversion
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Cross section showing the heat storage area

Solar Green Energy Saving Reno Day 45 at 727 Cassiar Crescent Demo House

Today is the drywall day. Because the second floor will be turned into three legal suites, a lot of fire rated drywalls need to be installed. In fact, this whole week can be called the drywall week!

727-cassiar-cres-front
Front view of this solar heat demo house
727 cassiar cres
Back view from ground – UBC living lab entrance
Overall layout for the entire conversion
727-cassiar-cres-cross-section
Cross section showing the heat storage area

Construction Site Signs Up for Both the Front and the Back of 727 Cassiar Crescent Solar Reno

Thanks to Tim and Frank at Stacy Screen Print, we had our reno construction site sign made for visitors coming to our OM Solar demo house at 727 Cassiar Crescent. Here is the design before print:

And here is one of the two signs after print and being brought back to the house:

Then we first installed one site sign at the back of the house last weekend. We found a concrete wall that is perfect to anchor two 4×4 posts to. See a picture and video below for this job:

Then we installed the other sign in the front of the house. We found a good spot on the lawn with a big tree stump over there. Due to double cuts made when they cut the tree down, the taller part could be used as a good side support – two 1/2″ holes drilled into it so that a central post could be anchored to it twice.

Once two more posts are buried and anchored onto the back of the sign, the whole thing becomes firm and solid. See these two photos for the finished sign: