Search: Posts Made By: dsomerv
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10-16-20, 06:56 AM
Replies: 14
Views: 312
Posted By dsomerv

presumably the cooking and water heating...

presumably the cooking and water heating component would be roughly what you use in the non-house-heating seasons - so , for example, if you took (6 months winter) minus (6 months summer) that'd be a...
10-15-20, 09:49 AM
Replies: 14
Views: 312
Posted By dsomerv

If you have records of your annual propane usage...

If you have records of your annual propane usage , you can make a pretty good estimate of your needs thus:

(gallons per heating season) * 27 (kwh per gallon of propane) * 0,80 (estimate of...
06-04-20, 06:47 PM
Replies: 2
Views: 269
Posted By dsomerv

Considering that WA has pretty much the lowest...

Considering that WA has pretty much the lowest electric rates in the US, $450/month would seem pretty high if it's mostly for electric heat so maybe your gas is costly or there's a lot of other...
12-07-19, 01:36 PM
Replies: 8
Views: 406
Posted By dsomerv

a quick internet search yielded NC propane...

a quick internet search yielded
NC propane ~$2.60 / gal , works out to 10 cents /kwh.
NC electric ~12 cents /kwh
close enough to call it a toss up or even favor electric considering conversion...
11-30-19, 10:13 AM
Replies: 8
Views: 406
Posted By dsomerv

what do Propane, electricity cost ? ...

what do Propane, electricity cost ? .

NC would seem to have the perfect climate for a heat pump - have you considered a...
11-05-19, 06:45 AM
Replies: 5
Views: 449
Posted By dsomerv

sorry - I had assumed that your York defrost...

sorry - I had assumed that your York defrost control would be similar to mine; but it appears not, though one wonders how the defrost logic works without knowing the ambient- I wouldn't want a...
11-03-19, 06:40 AM
Replies: 5
Views: 449
Posted By dsomerv

the ambient temperature sensor ... and is...

the ambient temperature sensor ...

and is the sensor you replaced the one on the liquid line ?
10-09-19, 10:42 AM
Replies: 2
Views: 240
Posted By dsomerv

just curious: - where do you live ? ...

just curious:

- where do you live ?
- why not get the fresh air inlet operating properly ? some outside air can be nice
- are others in the apartment building similarly afflicted ?
...
08-25-19, 02:24 PM
Replies: 14
Views: 503
Posted By dsomerv

Considering that Quebec-Hydro has very low-priced...

Considering that Quebec-Hydro has very low-priced electricity, the heat pump virtues don't matter much … so maybe 12000 btuh for air conditioning, about the equivalent of two modest window AC units,...
08-23-19, 04:59 PM
Replies: 14
Views: 503
Posted By dsomerv

You seem concerned with cooling - are you heating...

You seem concerned with cooling - are you heating too ? 12000 btu/hour is only a 1 ton unit - which won't do the heating job anywhere in Quebec I'd bet - unless your building is super insulated. ...
05-04-19, 09:10 AM
Replies: 4
Views: 1,333
Posted By dsomerv

The communicating interface is likely 4 wires: 2...

The communicating interface is likely 4 wires: 2 for signaling ( probably using the RS423 standard), 2 for 24V power to the defrost control board - if so, there'll be a 4pin connector on the control...
02-15-19, 08:42 AM
Replies: 9
Views: 592
Posted By dsomerv

You might check the thermostat to see what the...

You might check the thermostat to see what the temperature differential from off to on is and try a smaller difference. For example if the current difference is 2 degrees F, try 1.5 or 1 so that...
02-09-19, 10:12 AM
Replies: 9
Views: 592
Posted By dsomerv

If the existing thermostat is nothing special,...

If the existing thermostat is nothing special, you could replace it with one that has the periodic blower activation feature … or you could connect such a thermostat in parallel with the existing...
02-05-19, 11:16 AM
Replies: 9
Views: 590
Posted By dsomerv

-can you measure the voltage on the Y terminal of...

-can you measure the voltage on the Y terminal of the control board in the outdoor unit ?
- have you made any recent changes to the system (e,g, new thermostat)
- do you know the manufacturer and...
11-30-18, 02:10 PM
Replies: 5
Views: 558
Posted By dsomerv

Interesting thanks. You don't mention...

Interesting thanks.

You don't mention comfort ; at my house we lower the temperature 5 F (~2.5C) mainly because it's more to our liking to sleep in cool air, and don't mind paying for any...
08-06-18, 06:13 AM
Replies: 10
Views: 585
Posted By dsomerv

You could try jumping / bypassing the breaker to...

You could try jumping / bypassing the breaker to confirm that the breaker has failed ...
07-14-18, 03:45 AM
Replies: 3
Views: 531
Posted By dsomerv

when maintenance exceeds depreciation - replace

when maintenance exceeds depreciation - replace
06-22-18, 05:42 AM
Replies: 7
Views: 3,555
Posted By dsomerv

either the shutoff is due to real high pressure...

either the shutoff is due to real high pressure or bogus signal - some thoughts for troubleshooting:

- did you measure the pressure when the event occurs and know for sure that it is a high...
06-19-18, 08:01 AM
Replies: 14
Views: 986
Posted By dsomerv

If there's no Y1 at the outdoor unit then there...

If there's no Y1 at the outdoor unit then there should be no Outdoor fan/condenser running.
Is the contactor closed ? If not - yikes ?
If so, is the contactor being activated by the 24v wire...
06-19-18, 06:42 AM
Replies: 7
Views: 3,555
Posted By dsomerv

A few years ago I had a similar problem and it...

A few years ago I had a similar problem and it turned out to be the high pressure switch - specifically where the wire is connected right at the switch .
It was a broken wire which was connected...
06-16-18, 01:25 PM
Replies: 14
Views: 986
Posted By dsomerv

it sure sounds like a bad or mis-wired...

it sure sounds like a bad or mis-wired thermostat.
Have you or can you measure the voltages on the control wires at the outdoor unit and indoor unit when the misbehavior is happening.
04-12-18, 08:26 AM
Replies: 4
Views: 761
Posted By dsomerv

It depends ... If your environment offers clean...

It depends ...
If your environment offers clean air, the outside unit won't need periodic attention, and just an annual inside filter change;
On the other hand if you live where there's smog and...
04-10-18, 08:42 AM
Replies: 24
Views: 2,685
Posted By dsomerv

It seems clear that your heat pump is not , well,...

It seems clear that your heat pump is not , well, pumping enough heat. Whether you want to attribute the system ability to maintain but not reach set point to AUX is up to you, but it'd be easy to...
04-08-18, 07:41 AM
Replies: 24
Views: 2,685
Posted By dsomerv

AUX iliary heat is just that - it augments the...

AUX iliary heat is just that - it augments the heat pump when the heat pump alone, after running for a 'while' fails to meet setpoint or when the temperature difference between ambient and setpoint...
04-07-18, 10:17 AM
Replies: 24
Views: 2,685
Posted By dsomerv

Here's a scenario that could explain the...

Here's a scenario that could explain the symptoms:
-heat pump runs but doesn't satisfy the set point after 30 minutes (say)
- thermostat activates AUX heat because of the elapsed time or when...
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