Tag Archives: Aqua-Hot heat exchangers (H3-40)

2015/09/28 (M) Connected

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I was up at 8 AM, got dressed to work, gathered up the laundry, and started a load in the washer.  I was getting ready to grind the beans for our morning coffee when Linda got up.  She did not look at all well, having come down with what appeared to be a bad cold late last night.  But she’s a trooper and washed our breakfast berries, as she does most mornings, and got our granola ready.

Bus work notwithstanding my first task this morning was to figure out what had gone wrong with the thermostat in the main floor hallway of the house.  This is our “main” thermostat; it controls the heat to the living room, entry foyer, hallway, and kitchen/dining room.  It also controls the air-conditioning for the entire main floor of the house.  There is no air supply or return from the basement and the library has its own HVAC system.

I used my VOM to check the voltage at the secondary of the transformer on the furnace, at the input to each of the five motorized valves, and the voltage coming out and going to the five thermostats (four for space heating zones and one for domestic hot water).  Everything looked OK.  I pulled the main thermostat off of the base to check the wiring there.  I also got out the installation manual to make sure I knew what I was checking.

The wiring of the base plate matched the diagram for a 1H/1C-2T system, i.e., one heating system, one cooling system, and TWO transformers.  The manual was also very clear that the common wire had to come from the cooling system transformer.  The voltage from Rc to C was just under 15 volts when I expected it to be ~26V.  All of this pointed towards the air-handler.  I shut off the circuit breaker for the air-handler and reset it but that did not fix anything.  The evidence was confirming my suspicion that something happened while Rebecca was in the attic on Friday.  That meant I was going to have to go in the attic to figure out what it was.

Getting into the attic meant I had to empty the hall coat closet of all of its hanging contents and most of the stuff sitting on the floor and remove the wooden hanging rod, which fortunately lifts up and out easily.  I then had to lean a 6-foot step ladder against the back wall, climb up, and unscrew the 1/2″ piece of foam insulation that we use as a temporary cover until I can fabricate something more permanent (hopefully something that involves a self-storing ladder and hinged, spring-loaded door).

With the cover removed I was able to get my waist to about ceiling height, set my flashlight where I could reach it, and hoist myself up into the attic.  I do not have any permanent/switched lighting in the attic, but I plan to install some at some point.  What I should do is install a hatch in the hallway so I do not have to empty the closet to get into the attic, but that probably won’t happen.  I did this in our previous house and it made working in the attic much more convenient.  Flashlight in hand I crawled the 15+ feet over to the air-handler on plywood set across the roof trusses on a slope.  I was reminded than another attic project will be to rig up a walkway (crawlway) that is level and does not compress the insulation.  The insulation in this attic is a mess and needs to be straightened out, so that is another project for our “to do” list.  But I digress.

When I got to the air-handler I saw a surface mounted switch box on top of the unit partially obscured by one of the flexible ducts.  The switch was in the “Off” position so I flipped it to the “On” position.  I did not see a transformer so I presumed it was inside the enclosure.  I also presumed that Rebecca had either accidental moved the switch while checking/measuring the unit or had turned it off as a safety precaution and forgot to turn it back on.  It did not really matter as the result was the same either way.

I worked my way back to the hatch in the closet ceiling, lowered myself down onto the top of the step ladder, and climbed down.  The thermostat, which is on the wall across from the closet, now had information showing on the display.  The upside to all if this was that I now knew something about our HVAC system and Wi-Fi thermostat that I did not previously know, so at least I learned something in the process.

This thermostat is 7-day programmable model so I set the day and time and then went through the programmed values but could only access the settings for the cooling mode.  I activated the setup menu and walked through all of the settings, changing only one that had nothing to do with the programming.  I finally got out the user manual and saw that I had to select a mode in order to program its schedule.  I manually set temperatures for heating and cooling that would not cause those systems to come on and then programmed the times and temperature set points, four per day for each mode, for all seven days.

Keith showed up late morning while I was working.  We agreed to let the grass go for another week.  It has been dry and a little warm during the day for the last week and the grass has not grown much.  There is, however, a real possibility of rain latter today and into tomorrow.  Also, Phil is supposed to start tomorrow on the French drain and driveway work and with a little luck in the weather department may be done by next Monday.

With the thermostat issue resolved I turned my attention to the bus.  I thought about priming the walls but decided against it.  I would need to move the desk pedestals and bases, unscrew the sofa seat platform and move it on top of the pedestals, and then mask everything with painter’s plastic.  All of that was work that was much more easily and quickly accomplished with two people and Linda was sound asleep taking a nap that she obviously needed.

The other reason for not getting into the priming was that I have to take the bus to Chuck’s shop in Novi tomorrow morning to have the two lower windshields replaced.  That meant the bus had to be ready to move before the end of today and there were two things I had to do in that regard.  One was to reattach the desk pedestals to their bases and to the wall.  The other was to connect the loose ends of the two Aqua-Hot heater hoses together.  It had only just occurred to me that once I start the main engine the Aqua-Hot will heat up and the coolant will expand.  If these hoses are not connected the supply line will have coolant coming out of it and the return line will suck air into the system, neither of which would be good things.

I took care of the desk first.  I reattached each pedestal to its corresponding base using the existing screw holes.  I set the two assemblies in place with the connecting cover and then reattached each pedestal to the wall using the existing screw hole.  I thought about trimming down the temporary plywood top and reinstalling it but decided there was no point in doing that.  I cleaned up the rest of the interior making sure there were no loose items on counters or elsewhere that could fly around while the coach was moving.

The two bleeder valves were still clamped inside an old piece of heater hose that originally connected the two front heat-exchangers together with short stubs of hose on the other ends.  Working in the garage on our temporary workbench I unclamped and removed the hoses.  One of the valves was very badly corroded on one end and was not reusable.  The other one needed to be cleaned up but appeared to otherwise be serviceable.  Some of the inside of the hose was stuck to the metal of one of the pipe ends and was surprisingly difficult to remove.

I washed my hands, which were filthy, checked my e-mail, sent a message to Bill Gerrie, replied to an e-mail from Butch, took the dried laundry upstairs, folded it, and put it away.  Linda woke up while I was finishing the laundry and heated up some Amy’s mock chicken noodle soup for our lunch, which we had with sourdough pretzel nibblers and roasted red pepper hummus.  It was 2:30 PM by the time we finished lunch.  I called Josh Leach at Coach Supply Direct to see if he had followed up with Ferman Miller at Countertops Plus regarding our Corian tabletop.  I got his voice mail and left a message.  It felt like the day was slipping away and I had not done much but I had, in fact, accomplished quite a bit and all of it was stuff that needed doing.

I worked on this post for an hour and then completed the task of connecting the two heater hoses together.  I cut the ends of the old hoses off so I had clean material and square ends.  I slipped two band clamps over each hose and pushed them over the pipe ends of the bleeder valve.  They were very difficult to get on but I got them on far enough to put two clamps on each connection.  I did not turn the Aqua-Hot on as I would rather not refill these hoses with antifreeze at this time but I did start the main engine to air up the chassis and then let it run for 30 minutes to get it up to temperature.  It did not have any noticeable effect on the coolant in the Aqua-Hot in that short amount of time.

While the engine was running I closed the roof vents and made one last check that the interior was secure.  Once I shut the engine off I closed the various air valves, disconnected the batteries, locked up the coach, and was done working on/with the bus for the day.  I changed out of my work clothes and went to my office to edit blog posts from early August and get them ready to upload.

Linda called me up to dinner at 7 PM.  We had vegan cheeseburgers with leftover vegan potato salad and collard greens Cole slaw (inherently vegan).  It was yummy.  I went back to my office to edit more posts but got involved in e-mails from/to Bill Gerrie and Gary Hatt.  Gary sent me the BCM logo he is using for business cards and I spent over an hour trying to use Microsoft Publisher, and then Word, to layout a BCM business card that says “Freelance Author/Photographer.”  I did not care for the result and really want a card with the cover of the February 2013 issue as a full card photo.  The cover of that issue is our bus.

I came upstairs a little after 10 PM and watched the end of NCIS Los Angeles with Linda.  She did some online research and concluded that she did not have a cold but is suffering from an allergic reaction to something.  She went straight to sleep while I played a few games on my iPad before turning out the lights.

 

2015/09/22 (T) Bench Work

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Linda scraps the old wallpaper off below the passenger side living room window.

Linda scraps the old wallpaper off below the passenger side living room window.

We were up at 7:30 AM and had fresh grapefruit and cinnamon raisin toast for breakfast.  We turned the fireplace on and drank our coffee in the living room.  After taking care of a few chores we got to work on the bus.  Linda started stripping the old wallpaper while I finished soldering two 45 degree copper street elbows.  I then got my tools out and gathered up supplies I needed to disconnect the fan-coil heat exchangers and heater hoses.

I started by trying to connect a 1/2″ i.d. clear vinyl tube to the drain stub on the Aqua-Hot.  The stub points straight down, is approximately 3/4″ long, and the open end is about 3/4″ above the base.  There is a hole in the base of the unit at that point, provided by Aqua-Hot for a drain line, but Royale Coach installed one of the CruiseAir condenser units directly beneath the Aqua-Hot and did bother to provide a hole in the shelf or make alternate arrangements for draining the unit.  I could not get the vinyl tube over the stub and with a limited amount of time to spend on this minor annoyance moved to Plan B.

We have had a large stainless steel photo processing tray, approximately 2′ X 3′, for years.  Today we used it to catch antifreeze and protect the new floor.  Linda got some scrap towels and we put them under all of the edges of the tray.  I then set the heat exchangers on pieces of 2×4 in the tray to keep them up out of the antifreeze.  Linda held the heater hoses as I undid each of the band clamps in turn and worked them loose from the exchangers.  We emptied the coolant from the exchangers and hoses into the tray, wiped off the heat exchangers, took them outside, and set them in the driveway.

The two fan-coil heat exchangers in the photo tray ready to have the coolant hoses disconnected.

The two fan-coil heat exchangers in the photo tray ready to have the coolant hoses disconnected.

We made sure the hose that connected the two units was drained, wiped it off, and took it outside.  This hose has bleeder valves at each end that I will have to remove as I need to reuse one of them.  We drained the two remaining hoses as best we could and put the open ends in the metal photo tray.  I bought a bucket yesterday with a gasketed lid that has a built in spout.  I picked the band clamps and pieces of 2x4out of the antifreeze and put them in the bucket.  We then carefully poured the antifreeze from the tray into the bucket and put the lid on.  We carried the tray outside and set it in the driveway and then took the bucket outside.

Linda took a break from stripping wallpaper and went to the bank to deposit proceeds from the recent rally.  There wasn’t anything else I could do in the coach and I turned my attention to cleaning up the work surface in the garage.  I took the two desk bases to the garage and started working on the installation of the grates and heat exchangers.  I had not worked through the details of this in advance so I had to figure them out now.  I started with the left base, which has an angled front.

The coolant hoses with the heat exchangers removed. We were able to contain the coolant in the tray and not get any on the new floor tiles.

The coolant hoses with the heat exchangers removed. We were able to contain the coolant in the tray and not get any on the new floor tiles.

The heat exchangers needed to be spaced up 1/2″ off the floor to better align with the openings in the sides so I cut pieces of 1/2″ plywood to put under them.  The exchangers have two holes on the bottom front edge that were probably created by Royale to mount them.  Actually, it appears that Royale mounted them upside down, presumably to position the coolant connections where they needed them.  I say they were upside down because I discovered labels on the “bottom” indicating they were made by “Vantage Products, Exclusive U. S. Distributor of Primus Hydronic Heating Products.”  I designed the desk bases so that the exchangers would mount the same way Royale had them.  As such they will remain “upside down” but it will not affect their operation.

My plan was to put 3/8″ wide by 1/4″ thick dense foam self-stick weather stripping around the edge of the discharge side of the exchangers to seal them to the base and reduce vibration noise due to the fans.  I cut the 1/2″ plywood large enough to provide room for mounting brackets to attach the plywood inserts to the base in locations that I could reach with the heat exchangers in place.  The exchangers had to be screwed to the plywood before it was set in place inside the base since the grates blocked access to the two mounting holes.

The two fan-coil heat exchangers that will go in the bases under the two desk pedestals.

The two fan-coil heat exchangers that will go in the bases under the two desk pedestals.

By now it was mid-afternoon Keith showed up and mowed the grass so I took a little time out from my work to chat with him.  When I returned to the makeshift workshop in our garage I cut the brass-colored decorative aluminum grates to size and secured them on the inside of the base using small screws.  I also wanted to add a layer of the plastic gutter mesh I bought yesterday.  After cutting the first piece to size I decided to use double stick tape.  The only tape I had was 3M Extreme Duty Mounting Tape so I drove to Lowe’s to get something more appropriate.  I found a 1″ wide clear tape and decided to try it.

Half inch wide tape would have been better so I tried cutting the 1″ tape in half lengthwise.  I removed the discharge grate, applied the tape to the edges on the back side, and pressed the plastic mesh into it being careful to keep it as straight as possible.  I then screwed the whole assembly on the inside of the base.  The screws did not like going through the tape or the mesh so I was quickly disabused of this assembly process and decided to use the tape as it came off the roll.

For the air intake grate I first screwed the metal sheet to the inside of the base.  I then applied shorter pieces of tape around the edges in-between the screw heads.  I carefully positioned the pre-cut plastic mesh, peeled the protective layer off of the tape, and stretched/pressed the mesh in place.

I needed to clean the 3/4″ copper inlet and outlet pipes on the heat exchanger so I got Linda to help me at this point.  She held the heat exchanger as I used a strip of plumber’s sandpaper to remove heater hose rubber that had stuck to the pipe.

Because of the grates on the air openings in the base I positioned the plywood spacer and then marked/drilled the holes for the mounting brackets.  I set the exchanger in place, made several alignment marks, removed the exchanger, and took out the plywood.  I attached the brackets to the inside of the base and then attached the weather stripping to the front of the exchanger case.  I positioned the case and Linda held it while I secured it with two screws.  I slipped the plywood/exchanger assembly back into the bottom of the base and Linda pulled it tight to the front while I secured the brackets to it.  One base done, one base to go.

Keith was done mowing about this time and stopped to see what we were up to and pick up his check.  He normally mows our property on Monday morning but had some service issues with his truck that put him back a day.  He had some string trimming to finish and our dinner was ready so he went back to work and we went inside to eat.  Dinner was salad and Whole Wheat ABC Pasta Veggie Soup.  The soup was a North Bay Trading Company mix that Linda got at Whole Foods.  She added kale and tomatoes to make a very tasty and nutritious dish.

After dinner I was closing up the bus for the evening and noticed that the two large MCD shades in the living room had come loose from their front mounting brackets.  This undoubtedly happened Sunday on Hacker Road as we returned from the rally in Elkhart, Indiana.  Linda helped me move one of the desk pedestals on the sofa so I could get to the shade on the driver’s side of the coach.  Once I could get to it the mounting rail snapped into the clip fairly easily but I will have to figure out why it popped out in the first place and make adjustments if needed/possible.

I checked e-mail and replied at length to one from Gary at BCM.  We then settled in to watch the season opener of NCIS and NCIS New Orleans (NCISNOLA) followed by several shows on CreateTV (PBS).  I multi-tasked, working on blog posts at the same time.

My work yesterday and today was not as physical as what we have been doing for most of the summer so it did not feel like I had done much but the evidence suggested otherwise.  These seemingly small tasks often have a lot of steps that have to be done carefully in the right order and take time to do.  There was also a certain amount real-time problem-solving and a trip to the store in the middle of the work.  I hope to finish the other base tomorrow, get both of them back in the coach, and get them plumbed with the new heater hose.  That may have to wait a day or so, however, as Linda needs to finish stripping the wallpaper in the area behind the desk and we need to hang the new paper before re-installing the desk.  There is a definite order to this work that cannot be circumvented.

 

2015/09/21 (M) Back to Bus Work

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We were up a little after 8 AM.  I showered while Linda prepared our breakfast fruit–blueberries, raspberries, and peaches–to go with our granola.  I made a pot of coffee, using up the Costa Rican half-caff, and then sat down to eat.  After breakfast we sat in the living room enjoying our coffee to the warmth and glow of the fireplace while Linda downloaded and installed iOS 9 on her iPad.  The download was 740 MB so I waited until the installation was done on her machine to start it on mine.

When we finally got to work our first task was to unload all of the wood from the car and store it in the garage.  My next task was to call Ferman Miller at Countertops Plus in Shipshewana, Indiana to make sure he got my message on Friday with the dimensions for the Corian top table.  I got his voice mail again and left another message.  I then called Josh at Coach Supply Direct to bring him up to date, got his voice mail, and left a message.

Linda planned to get a few things at Whole Foods Market as she needed to drive to Ann Arbor anyway to pick up our wallpaper from Delux Draperies and Wallcoverings.  While she took care of that I started figuring out what parts I needed to reconfigure the heating system.  Before making a run to the store I found all of my plumbing tools and supplies.  I got 20 feet of heater hose and 10 band clamps from O’Reilly’s and various copper fittings from Lowe’s.  I also got a drain hose and a clean bucket to catch/hold antifreeze.

Back home I removed the seat and back cushions from the sofa and stacked them on the chairs.  I removed the temporary plywood top from the desk and stored it in the garage.  I then uninstalled the desk pedestals from the wall and from their bases.  There wasn’t much else I could do without Linda’s help, so her return soon thereafter was timely.  We had a light lunch and then moved the pedestals to the sofa.  That left the bases free for me to work with.  I still did not have all of the parts I needed to install the fan-coil heat exchangers in the bases.  I also needed to remove the heater hoses in order to mount the heat exchangers and replace the hoses with different lengths and angled fittings.

As I was contemplating all of that I got a call from Chuck Spera.  He was in the process of setting up an appointment to have the lower windshields replaced on both of our rigs and wanted to make sure I was still interested and check my availability.  He called back a little while later to let me know we were set for next week Tuesday in the morning.

I then got a call from Joe Cannarozzi.  Joe has done a lot of work on our bus over the last five years, especially the chassis.  He called to confirm that I still wanted him to stop at our place on his way back to Chicago around Halloween and discuss what I needed done.  Yes, I did, and what I needed was routine maintenance; lube, oil, filter(s), brakes, and possibly axle hub seals.

When we first started working with Joe he had an active, full-time mobile bus repair business, specializing in Prevost chassis service.  The last couple of years he has worked a regular gig in upstate New York from April through October.  He still services a few buses, like ours, starting in the north in the late fall and working his way to Florida for the winter where he tries to get to the Keys and take 4 to 6 weeks off before working his way back up to New York in the spring.  When we wrapped up the call I texted Chuck to let him know that Joe would be coming this way.

I called Ferman again and this time he answered the phone.  He had gotten my two previous messages and I was correct that there was not enough material in the large sheet of Corian to make the table.  He had not had a chance to check his stock to see if he had any more of the Sandstone.  I mentioned that Josh had another vendor with a 30″ by 40″ piece.  Ferman indicated that if he doesn’t have another piece he would be willing to work with that piece if Josh got it.  I called Josh and he answered this time so I walked him through the current status.  He called the other vendor and called me back.  The piece is 30″ by 48″ and he was willing to sell it for $175.  Josh and I agreed to give Ferman a couple of days to check his stock before pursuing it.

Linda was working at her desk on a proposal for the bakery and preparing a bank deposit for our GLCC chapter.  I went to the garage and began soldering 3/4″ copper plumbing fittings.  I need to route the 3/4″ rubber heater hose around corners that were too sharp to just bend the hose so the copper fittings will take care of that.

Linda called me to dinner at 6 PM.  We had a nice salad, vegan Italian sausage with onions, and Brussels sprouts as a side.  A small glass of Moscato made a nice accompaniment.  After dinner I checked my e-mail and took care of the cats’ liter tray.  I then drove to Lowe’s for two more 45 degree street elbows.  On the drive home I talked to Mike (W8HX) on the South Lyon 2m repeater.  We discussed getting me back up our tower sometime in the next 9 days if my work on the bus progressed to the point where I could afford the time.  We went to bed early enough to watch a few TV programs and then fell asleep.

 

2015/09/09 (W) Move In Day

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We had a slow start to our morning.  I was up at 7:30 AM, finished loading the dishwasher, and made a cup of organic English Breakfast tea.  I fed the cats and then settled in to continue reading Oystein Ore’s Number Theory and Its History.  Jasper wanted attention and sat on my lap until Linda got up at 8:30 AM.  I made a cup of tea for her and brewed a second cup for me.

Linda developed a sore throat yesterday and did not feel like working last night so we deferred final cleanup of the grout on the new floor tiles in the bus until this morning.  She was obviously still not feeling well and was tired from not having slept well last night but she was willing to help with cleaning the grout reside off of the new tiles.  Before jumping into that task, however, we stripped the bed so I could launder the sheets and pillow cases.  We needed a mop for the floor cleaning so Linda went to Meijer’s and got one and picked up some blue Scotch Brite sponge pads.  While she was gone I went to the garage, smoothed the top surface of the return air shelf for the built-in sofa with 4/0 steel wool, and applied a second coat of polyurethane.  I had just enough to finish it.  I then started preparing for the tile cleaning.

I filled two 5-gallon pails half full of warm water and added 1-1/2 capfuls of Armstrong Once & Done concentrate.  The other pail was clean water for rinsing.  Cleaning the grout residue off of the tiles in the bus involved lightly scrubbing along and across the grout lines as well as the center of each tile.  I then went over the area with the square edged sponge side of the pad.  I went on to the next set of tiles while Linda trailed along behind mopping the area.  It took us a couple of hours to do the entire floor.

Part of the kitchen and living room floor after being cleaned as viewed from the hallway looking towards the built-in sofa.

Part of the kitchen and living room floor after being cleaned as viewed from the hallway looking towards the built-in sofa.

We moved all eight pieces of the built-in sofa into the bus and set them in place.  They all fit nicely and I was especially pleased that the vertical front panel, which is walnut veneered plywood, would not have to be trimmed.

We needed to strip the wallpaper behind the sofa but could do that later.  We also needed to strip the wallpaper behind the desk and really needed to do that before installing the desk.  Ideally we would have the new wallpaper installed too but we do not have it in our possession yet.  Linda also wants/needs to get back to work on cleaning/waxing the woodwork as we wanted that done before we put the drawers back in the cabinets.  She was very tired by this point, however, and took a much needed nap.

The built-in sofa with the plywood seat raised to reveal the plenum/support boxes on both ends and the center shelf that forms the air return duct for the OTR HVAC. The empty space will be used for storage.

The built-in sofa with the plywood seat raised to reveal the plenum/support boxes on both ends and the center shelf that forms the air return duct for the OTR HVAC. The empty space will be used for storage.

I had some electrical things to take care of before we could assembly and secure the desk so I worked on those.  There was a 120V AC duplex outlet in a metal box on the wall where the left desk pedestal will go.  There was also a flexible plastic split loom conduit with 11 wires in it that ran from the panel next to the passenger seat to the four switches in the triangular panel and to the first of two door chimes.  This conduit was originally on the floor behind the furniture where it could not be seen but was now very visible and something needed to be done with it.  I started with the AC outlet.

I shut off the power to the AC outlet, tested it to make sure it was off, unwired the receptacle, unscrewed the box from the wall, and got the wires out of it.  I reenergized the circuit and verified which wire pair was the line (source, supply) and which was the load (power was fed from this box to another outlet by the passenger seat).  I was thinking about where to relocate the box so I would have power available under the center of the desk when I realized I had not made any provision in the design of the desk for getting power to that location.  I sat and thought about that for a while but an obvious solution did not present itself so I worked on the other wiring.

I made a diagram of the connections to the four switches so I could remove the wires and be able to put them back in the right place if needed.  All of the connections were spade lugs, male on the switch and female on the wire ends, so they were easy to remove.  The two switches with the most wiring originally controlled a motorized drawer and a motorized table.  The two DC power supply wires also had spade lugs as did the cabling from the switches to the motor connectors so I was able to remove all of that wiring and set it aside after labeling it to match my diagram.

The two wires from the doorbell switch also ran through the flexible plastic conduit to the first door chime.  Another pair of wires was spliced into the first pair and ran back to the bedroom where a second door chime was installed at the junction of the HVAC duct and dresser cabinet.  I cut all the wires at the splice, labeled the pair from the switch, and wrapped the end of each wire.  I wrapped the wires for the front chime around the box.  I then determined that I could pull the wires for the bedroom chime from the bedroom end, after disconnecting them from the chime, and remove them along with the chime box.  I coiled and taped the wires and set them aside with the box.

I now had all of the extra wires out of the way but still did not have a good solution to my electrical issues.  Two of the four switches were still functional, so the switches needed to be installed somewhere, but it was not obvious to me where they could/should go or how to mount them.  I also had two AC cables to relocate.  I decided to go inside and work at my desk.

When Linda got up she wasn’t feeling any better but she was at least somewhat rested.  We had simple, easy, but tasty meal of vegan riblets and corn-on-the-cob for dinner.  I was anxious to see how the desk was going to fit so we moved the nine pieces from the library into the bus.  It was getting near sunset by this time and we had a few moments of spectacular color before the world turned to gray and faded into night.

I folded the two AC cables down so they would be out of the way temporarily (they were still de-energized).  We set the two bases in approximately the right locations and put the two pedestal boxes on top of them.  I need to install a panel to cover the vertical mirror tiles before permanently installing the desk so I left an appropriate space for now.  I need to make a decision about the panel, however, so I can give Jarel the final dimensions for the HVAC duct / wiring chase cover.  With everything snugged up we put the drawers back in the right pedestal and sat on the sofa contemplating the new look and functionality of our bus.

I was also contemplating how I might “force” the pieces into alignment.  My first thought is to use metal or wood plates attached to the back/underside of the two pedestals to position the knee space connector piece.  I will probably also put a piece of 1×1 or a metal angle bracket on the wall to hold the back edge of the connector shelf as it will have a heavy UPS on it along with a NAS.

The installation of the new custom walnut desk may be temporary in that I may not be able to get the fan-coil heat exchangers for the Aqua-Hot hydronic heating system installed until after the upcoming GLCC rally.  I need to attach some sort of screen material to the back of the air inlet and outlet openings.  I also need to install new pieces of heater hose of the correct length and rig up some things to help get the hoses around tight corners.  This, however, will require draining and then opening some of the coolant lines.

Linda was surprised both by how big the desk is but also by how much extra room she will have in the kitchen.  I think that speaks to the inefficiency/inappropriateness of what was there before.  We were discussing the problem of getting AC electrical power to the wall area between the pedestals when the solution presented itself.  There is space at the inside rear of the right pedestal box so I can bring AC wiring from the chase through the bottom of the box, up the inside the left rear corner, and out through a hole just below the counter top and wire it to an outlet strip.  It will be completely invisible unless you get down on the floor and look up in the knee space of the desk.  It will also be conveniently located just below the notch in the center back of the countertop where power and data cables will drop through.

Linda went off to bed a little earlier than normal as she has to go to the bakery tomorrow.  I went back to my office to deal with computer updates, e-mails, and off-loading photos from my camera to my computer and the NAS units.