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Plumbing / Re: Portage and Main ML30 install
« on: October 24, 2013, 06:50:52 AM »
I'm going to run one pump for this system on one loop. A Taco 009 from boiler to 20 plate exchanger into water heater tank, (mixing valve on outlet), then run to first floor water to air exchanger in crawl space air handler, then to second floor water to air heat exchanger in attic, then back to stove.
Will also plumb a water supply into this loop below the height of the water level in the boiler when full. Hoping this will make it easier to top off the system when necessary and purge air in the loop when I fill it initially.
Unless I hear compelling evidence that I am screwing up, this is what I'm going with.
I plan on monitoring the supply and return temps.
Will also plumb a water supply into this loop below the height of the water level in the boiler when full. Hoping this will make it easier to top off the system when necessary and purge air in the loop when I fill it initially.
Unless I hear compelling evidence that I am screwing up, this is what I'm going with.
I plan on monitoring the supply and return temps.
2
Plumbing / Re: Portage and Main ML30 install
« on: October 21, 2013, 11:25:58 AM »
I currently have a 2 zone heat pump system in the house. The first floor air handler is located in the crawl space with vents in the floor. The second floor air handler is located in the attic with vents in the ceiling. I am working with a system that was installed by the previous owner. The boiler was not part of the sale of the house but the water to air heat exchangers are there with 3/4" pex loops/water lines for each floor. There is no provision for domestic hot water (I believe the previous boiler was setup with an internal coil in the water jacket of the boiler for DHW.)
So at this time I have 4 pex lines undergound run to the boiler I purchased and not connected. One supply and one return for each of the heat exchangers for each floor. I would love to be able to run this system on one pump/one loop but not sure that I can due to the 3/4" line size.
I assume I will have to tap into one of the heat loops to incorporate the DHW. I also assume this would be better in the first floor loop since heat rises and the demand would be less for the first floor?
Twin thermostats are there on each floor - one for heat pump operation and one for the boiler heat system.
To add to the confusion, I may install an auxillary heater in the attached garage to increase the heat demand of the boiler (less idle time/corrosion possibility).
I'm trying to adapt to what I have already. Thanks!
So at this time I have 4 pex lines undergound run to the boiler I purchased and not connected. One supply and one return for each of the heat exchangers for each floor. I would love to be able to run this system on one pump/one loop but not sure that I can due to the 3/4" line size.
I assume I will have to tap into one of the heat loops to incorporate the DHW. I also assume this would be better in the first floor loop since heat rises and the demand would be less for the first floor?
Twin thermostats are there on each floor - one for heat pump operation and one for the boiler heat system.
To add to the confusion, I may install an auxillary heater in the attached garage to increase the heat demand of the boiler (less idle time/corrosion possibility).
I'm trying to adapt to what I have already. Thanks!
3
Plumbing / Re: Portage and Main ML30 install
« on: October 21, 2013, 09:08:52 AM »
Thanks to Slimjim for helping me thus far! I actually have more sq footage to heat than I thought and have a plan to make certain that I have adequate load on the ML30 and will monitor its performance in my application.
I have a sketch of my current setup and would like advice on plumbing, pumps to use, etc. I prefer to mount the pumps in my crawlspace.
Thanks in advance for the help.
I have a sketch of my current setup and would like advice on plumbing, pumps to use, etc. I prefer to mount the pumps in my crawlspace.
Thanks in advance for the help.
4
Plumbing / Re: Portage and Main ML30 install
« on: October 15, 2013, 10:44:29 AM »
SlimJim PM sent
5
Plumbing / Portage and Main ML30 install
« on: October 15, 2013, 10:24:30 AM »
Great forum! First post.
The house we bought had an OWB of unknown manufacture. 2 story with a crawlspace. Built in 2006, well insulated and 2146 sq ft. Two heat pump system with an air handler in the crawlspace and one in the attic for the second story. Water to Air heat exchanger installed in each air handler. No provision for domestic hot water and I will need to figure out how to get it properly. Also 700 sq ft attached garage under a bonus room that is heated and cooled. Dual thermostats already installed in the house - one for the heat pumps and one for the OWB.
I purchased a new P & M ML30 and would like assistance choosing the correct components for installation on what was left of the previous plumbing. I'm working with 2 loops of 3/4" pex (I know, wish it was 1" but working with what I have) one for each hx. 20A 120V service existing at the stove but need to hook it up.
The stove is placed on the existing pad with no connections at this point. I would like to do this the right way or at least the best way I can working with what I have. I know you need to know the run distance for the pex and number of fittings also. I will get that info this evening. I like the idea of temp gauges on the returns. I'm in Virginia. So I guess I need to know:
1. What pumps to use? Best way to install them exactly?
2. How to best setup for domestic hot water? Bypass loop for hot water in the summer option? Use a plate exchanger on the 1st floor loop for domestic hot water?
3. What other info do I need to provide?
Thanks in advance for the help! I'm looking forward to getting up and running.
The house we bought had an OWB of unknown manufacture. 2 story with a crawlspace. Built in 2006, well insulated and 2146 sq ft. Two heat pump system with an air handler in the crawlspace and one in the attic for the second story. Water to Air heat exchanger installed in each air handler. No provision for domestic hot water and I will need to figure out how to get it properly. Also 700 sq ft attached garage under a bonus room that is heated and cooled. Dual thermostats already installed in the house - one for the heat pumps and one for the OWB.
I purchased a new P & M ML30 and would like assistance choosing the correct components for installation on what was left of the previous plumbing. I'm working with 2 loops of 3/4" pex (I know, wish it was 1" but working with what I have) one for each hx. 20A 120V service existing at the stove but need to hook it up.
The stove is placed on the existing pad with no connections at this point. I would like to do this the right way or at least the best way I can working with what I have. I know you need to know the run distance for the pex and number of fittings also. I will get that info this evening. I like the idea of temp gauges on the returns. I'm in Virginia. So I guess I need to know:
1. What pumps to use? Best way to install them exactly?
2. How to best setup for domestic hot water? Bypass loop for hot water in the summer option? Use a plate exchanger on the 1st floor loop for domestic hot water?
3. What other info do I need to provide?
Thanks in advance for the help! I'm looking forward to getting up and running.
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