|
|
|
new ClimaterMaster 27. Curious if its operating properly.
Last Post 23 Feb 2010 04:20 PM by jml. 68 Replies.
|
Sort:
|
|
Prev Next |
You are not authorized to post a reply. |
|
|
|
jml
 New Member
 Posts:55
 |
| 17 Feb 2010 09:00 PM |
|
Rob:
I'm thinking that your thermostats are not likely the problem. If the geo units and the thermostats are keeping the house at 21 (not higher, not more than a degree or two lower), then they're likely working OK.
Your energy use may be just fine, or may really be too high -
there's really a couple of things we need to know. Your have 9 tons
worth of heat pumps - if your house really requires that much heat, I'd
guess a HE Nat Gas Furnace would have a monthly bill well above $250. Do you have a
"heat loss" calculation for the house from your geo installer showing the peak number of BTUs
required at a particular outside temperature design point?
The experts here can help if you give them the right info - there's some really knowledgeable people here. (Not me - I'm just a homeowner who's been lurking around this site and learning more about this subject than I would have ever imagined)
The water in and out temps are a good start, but don't quite tell us enough. A 3 degree difference between water-in and water-out temp might be ok for a unit running in first stage, but might seem on the low side for a unit running in second stage assuming that water flow stays constant
Climatemaster's manuals suggest that in 2nd stage, "normal" for your 6 ton unit is about 4 to 10 degree temp drop, depending on how many gpm are flowing through the unit. For your 3 ton unit when running in 2nd staqe, "normal" is a 4.5 to 10.9 degree temp drop. That's a pretty big spread.
What we really want to know here are these separate readings for each of your two units - water in, water out and air in, air out when running in stage 1 - water in, water out and air in, air out when running in stage 2
That's 16 temperature readings in total - just kick up or down the t'stat to get the unit into the right stage. You should be able to tell what stage the unit is in from the display on the t'stat, or the Y1 and Y2 LEDs inside the unit on the ECM board. Temps here should be measured right where the air enters and leaves the unit, and where the water enters and leaves the unit. An inexpensive digital meat thermometer will do nicely to gather these temps, if you want to do this yourself instead of bothering your installer. You may have P/T test ports installed on the water lines which are meant for measuring these temps. If not, tape the thermometer to the outside of the pipe where it enters or leaves the unit to get a fairly accurate reading.
From those temp readings, and your climatemaster manual (or the formula
HE (Btuh) = TD x GPM x 500), we can figure out if the "HE" (Heat of
Extraction) is within spec for each of your units.
It would also be good to know if you have any daytime or nighttime setbacks programmed into the thermostat, and to confirm whether all the breakers for the backup electric heat strips are off. If you've got a large nighttime setback and your heat strips are being used to bring the temperature back up each morning, that'll cost some money.
Others here with more knowledge than me can chime in on what I've missed (or overcomplicated) ...
|
|
|
|
|
geonorth
 New Member
 Posts:22
 |
| 17 Feb 2010 10:05 PM |
|
I can understand, I was pretty shocked with my electric bill. Good news is that it drops off a lot in the summer.
Here are my actual costs from 2009. They are very rough as some months they estimate the bills but perhaps the data will help:
Jan 144.77 (estimate not reflecting geo use) Feb 194.61 (estimate not reflecting geo use) Mar 577.75 April 729.96 May 508.96 June 116.71 (overcharged for May) July 247.26 August 265.06 Sept 214.36 Oct 317.26 Nov 230.08 Dec 183.29 (estimate) Jan 2010 $385.00
Electiricty total for 2009 = $3727.02 Electiricty total for 2008 = $2264.44
Difference = $1462.58.
Factors to consider: - ClimateMaster T27 6-Ton - Home: 3100 sqft main level, approx 2000 sqft second floor, approx 1500 sqft basement finished - Location close to Newmarket, Ontario - Electricity rose in price from 2008 to 2009. Not sure the exact amount but my guess is about 5%. - Oil Heating in 2008 was about $3600 - Includes switch to 80 gallon electric water heater, well insulated - Don't know if I agree with the R2000 comment - our home is extremely well insulated, I haven't seem this level of insulation in other homes, I guess that depends a lot on the builder - T-Stat at 68F low / 78F high - I have an electric aux heater but turn off the circuit breaker so no aux heat. we don't seem to need it - 2010 data will be better, 2009 data is all over the place with estimates, smart-meter changes etc
By May 2009 I was concerned and asked the installer to check my system re: efficiency. They said it was operating correctly. In terms of the unit we have no issues - quiet, comfortable, well installed etc.
The horizontal loop made a huge mess of my yard. This was the worst part. If you have an established home and install a horizontal loop, IT WILL MAKE A HUGE MESS!! This was the most stressful part of the experience. In the end, the installer (who also did the excavation) came back to level everything and in time it should be more or less back to normal.
Hope this helps.
|
|
|
|
|
velcomrob
 New Member
 Posts:38
 |
| 17 Feb 2010 11:54 PM |
|
Hi!
thanks for all the replies.
ive tried all those changes on the tstat to see if it would make any difference.
im just really not sure if the geo running 24 hrs a day is normal. at night i cant really watch it to see what its doing but i assume its runnign constantly.
im only basing my information on what the installer and audit professional told me.
the installer told me based on a report i should be spending around $2500 a year for heating.
in the last 2.5 months ive spent close to that already.
$600 + $1000 + next one will be around $600 again as im watching KW's used.
in regards to BTU's I think i faguely remember they were around 140,000 BTUs for my home. ill see if i can get a heat loss report from my builder.
i was looking at some costs on my home prior to this one and i spent about $200 on heating and $140 on electricity. My home was 3700 sq ft not including the basement. basement area was finished. thats also why im alittle astonished and upset.
in regards to
Climatemaster's manuals suggest that in 2nd stage, "normal" for your 6 ton unit is about 4 to 10 degree temp drop, depending on how many gpm are flowing through the unit. For your 3 ton unit when running in 2nd staqe, "normal" is a 4.5 to 10.9 degree temp drop. That's a pretty big spread.
What we really want to know here are these separate readings for each of your two units - water in, water out and air in, air out when running in stage 1
Stage 2 is kicking in when there is a 2 degree difference.
stage 1 is usually whats running ALL the time 24 hrs a day.
the set temp would be 21 and current temp would be 21 but the system still runs. is that normal? |
|
|
|
|
velcomrob
 New Member
 Posts:38
 |
| 18 Feb 2010 12:15 AM |
|
i was just looking at my hydro one costs and thus far we've paid $2900 from 09/01/2009. thats for 5 months.
its a big difference from what my installer was telling me. $2500 for the year. i called him to call me back, waiting for his call to see what he has to say.
|
|
|
|
|
geome
 Advanced Member
 Posts:987
 |
| 18 Feb 2010 06:57 AM |
|
The experts here can tell you, based on your heat loss, if your system should be running as much as it does. Your installer may be able to provide you with printouts showing estimated running hours per year at different outdoor temperatures. I would also find out from your installer what your system design temperature is. Is this year colder than the previous year? Can you calculate the percent change, then adust your previous years kWh and gas used, then multiply this by the current utility rates to see what you may have spent without switching to geothermal? |
|
| Homeowner with WF Envision NDV038 (packaged) & NDZ026 (split), one 3000' 4 pipe closed horizontal ground loop, Prestige thermostats, desuperheaters, 85 gal. Marathon. |
|
|
jml
 New Member
 Posts:55
 |
| 18 Feb 2010 10:17 AM |
|
Posted By velcomrob on 17 Feb 2010 11:54 PM
stage 1 is usually whats running ALL the time 24 hrs a day.
the set temp would be 21 and current temp would be 21 but the system still runs. is that normal?
Nope, not normal, unless "smart recovery" is trying to bump up the house temp just before a programmed temp increase is supposed to kick in. When you say "the system still runs" do you mean that the fan is on 24 hours a day, or the compressor. When the current temp reaches the set point, the 24v Y1 signal from the thermostat to the unit should turn off, the Y1 LED on the board inside the unit should turn off, and the compressor should shut off. Normally you'd also want the fan to turn off at the same time, meaning that the 24v "G" signal from the thermostat should turn off, and the "G" LED on the board inside the unit should turn off. However, your thermostat has a configuration setting to keep the fan running even when the thermostat is off - called "intermittent fan" (look in the manual for the details). It is unlikely but possible that this feature could haven been accidentally configured to keep the fan running 24 hours a day. That'll add a bit to your electrical bill. Not a huge amount, but enough to notice. I am really serious about you taking actual temp readings of air in and out and water in and out on both units in both stages of operation if you want to know whether these units are really performing up to spec. We're looking to see an air temp delta in the 17 to 27 degree range and a water temp delta in the 4 to 10 degree range for each unit when running in 2nd stage (see the "Unit Operating Conditions" in the back of the Tranquility 27 installation manual). Anything outside that range could indicate a problem. |
|
|
|
|
docjenser
 Veteran Member
 Posts:1400
 |
| 18 Feb 2010 11:26 AM |
|
How much of your costs are geothermal related. You moved into a new house, and you now compare apples and oranges with your old house.
I have a 120.000 BTU/h heating load with 70F outside and 0F degrees design temp in Buffalo NY. My gas bill was $4900 before Geo, now I am paying $2500 more in electricity/Year.
You having a 140.000 BTU/h load further north in Canada makes $2500/year look very good.
This winter is unusually cold this year, making a difference as well.
Wait until the shoulder season where you do not run the heat and see how much the base load of your house is in terms of electricity consumption.
So far your numbers seem right on target. |
|
| www.buffalogeothermalheating.com |
|
|
geonorth
 New Member
 Posts:22
 |
| 18 Feb 2010 11:27 AM |
|
I assume the $2500 is incremental cost on top of your normal electric usage. You need to extract your normal usage from your amount paid to compare. In my case my electric usage before geo was about $200/month. This would be $1000 of the $2500 to bring the total more in line with the installer.
|
|
|
|
|
velcomrob
 New Member
 Posts:38
 |
| 18 Feb 2010 12:04 PM |
|
Posted By geome on 18 Feb 2010 06:57 AM The experts here can tell you, based on your heat loss, if your system should be running as much as it does. Your installer may be able to provide you with printouts showing estimated running hours per year at different outdoor temperatures. I would also find out from your installer what your system design temperature is.
Is this year colder than the previous year? Can you calculate the percent change, then adust your previous years kWh and gas used, then multiply this by the current utility rates to see what you may have spent without switching to geothermal? hey there. our home is new we been in here since 09/2009. im basing my info from my previous home. heating our home prior to this a 3700 sq ft home using HE Furnace was around $130 to $160 in gas and that also included hot water tank. our electrical bill was around $130 to $150 So total max would be $300. Now we are in a home that's 1100 square feet bigger and we are paying double the costs. Doesnt seem right. We should be even below gas costs on top of that. |
|
|
|
|
velcomrob
 New Member
 Posts:38
 |
| 18 Feb 2010 12:05 PM |
|
Posted By geonorth on 18 Feb 2010 11:27 AM I assume the $2500 is incremental cost on top of your normal electric usage. You need to extract your normal usage from your amount paid to compare. In my case my electric usage before geo was about $200/month. This would be $1000 of the $2500 to bring the total more in line with the installer.
Yep its $2500 for heating alone. My electrical costs are everything. We even use less electricity then we did in our previous home. Our previoud home last year was about $130 average per month. So i assume max it can be is $180 to $200 with rising prices. |
|
|
|
|
velcomrob
 New Member
 Posts:38
 |
| 18 Feb 2010 12:08 PM |
|
Posted By docjenser on 18 Feb 2010 11:26 AM How much of your costs are geothermal related. You moved into a new house, and you now compare apples and oranges with your old house. I have a 120.000 BTU/h heating load with 70F outside and 0F degrees design temp in Buffalo NY. My gas bill was $4900 before Geo, now I am paying $2500 more in electricity/Year. You having a 140.000 BTU/h load further north in Canada makes $2500/year look very good. This winter is unusually cold this year, making a difference as well. Wait until the shoulder season where you do not run the heat and see how much the base load of your house is in terms of electricity consumption. So far your numbers seem right on target. this year our winter has been mild. |
|
|
|
|
velcomrob
 New Member
 Posts:38
 |
| 18 Feb 2010 12:10 PM |
|
Posted By jml on 18 Feb 2010 10:17 AM
Posted By velcomrob on 17 Feb 2010 11:54 PM
stage 1 is usually whats running ALL the time 24 hrs a day.
the set temp would be 21 and current temp would be 21 but the system still runs. is that normal? Nope, not normal, unless "smart recovery" is trying to bump up the house temp just before a programmed temp increase is supposed to kick in.
When you say "the system still runs" do you mean that the fan is on 24 hours a day, or the compressor. When the current temp reaches the set point, the 24v Y1 signal from the thermostat to the unit should turn off, the Y1 LED on the board inside the unit should turn off, and the compressor should shut off. Normally you'd also want the fan to turn off at the same time, meaning that the 24v "G" signal from the thermostat should turn off, and the "G" LED on the board inside the unit should turn off. However, your thermostat has a configuration setting to keep the fan running even when the thermostat is off - called "intermittent fan" (look in the manual for the details). It is unlikely but possible that this feature could haven been accidentally configured to keep the fan running 24 hours a day. That'll add a bit to your electrical bill. Not a huge amount, but enough to notice.
I am really serious about you taking actual temp readings of air in and out and water in and out on both units in both stages of operation if you want to know whether these units are really performing up to spec. We're looking to see an air temp delta in the 17 to 27 degree range and a water temp delta in the 4 to 10 degree range for each unit when running in 2nd stage (see the "Unit Operating Conditions" in the back of the Tranquility 27 installation manual). Anything outside that range could indicate a problem.
Sorry. What I meant was our compressor is always running. The fan is set to AUTO. What would cause the compressor to always run? I can see what the indoor temp is at from the tstat and it matches what we want it to be at yet the compressor will still run on Stage 1 continously. i will be taking measures for what you need. i was trying to find my meat tester but no luck. ill have to buy a digital one today. |
|
|
|
|
jml
 New Member
 Posts:55
 |
| 18 Feb 2010 12:44 PM |
|
Posted By velcomrob on 18 Feb 2010 12:10 PM
What would cause the compressor to always run? I can see what the indoor temp is at from the tstat and it matches what we want it to be at yet the compressor will still run on Stage 1 continously.
The compressor will only run when a 24v signal is present on the Y1 terminal at the unit. This is indicated by the green Y1 LED on the ECM board inside the unit. It may be useful to get out a voltmeter and check the voltage between the Y1 terminal and the C terminal when the set point has been reached and the unit has not shut off. One would think that if the unit is running continuously and the outside temperature is fairly mild, the temp would go up and up well beyond 21 C. Does this happen, or does it max out at 21? Do both the 3 ton and 6 ton units do this, or just one of them? (presumably each unit has its own thermostat). |
|
|
|
|
velcomrob
 New Member
 Posts:38
 |
| 18 Feb 2010 01:57 PM |
|
right now its -2C outside.
i never really saw how far itll drop with turning heat off.
We usually keep it as 21C. Sometimes we put it up to 22C and then Heat2 will kick in until it reaches 22 then Heat1 will kick it and run forever.
i have a volt meter at my office which im going to bring with me to test that.
|
|
|
|
|
docjenser
 Veteran Member
 Posts:1400
 |
| 19 Feb 2010 12:21 AM |
|
this year our winter has been mild.
Can you define mild? You are about 100 northwest from us (Buffalo, NY) and we had one of the coldest winters so far, not in terms of peak low temps, but it was constantly below average, giving us many heating degree days.
You description of you house with 3 tons upstairs and 6 tons downstairs might suggest that the downstairs unit run constantly to heat the lower floor, but also provides heat for the upper floor. Do you have a relatively open floor plan? That way it would be surprising that the lower unit runs on 1st stage for a long period of time. again, with our load (140.000 BTU/h) it sounds reasonable to me from a distance.
|
|
| www.buffalogeothermalheating.com |
|
|
velcomrob
 New Member
 Posts:38
 |
| 19 Feb 2010 12:42 AM |
|
hi sorry for late reply.
my installer replied and will be coming next week to take a look.
our floor plan is not that open. there is one stairs leading upstairs and thats about it. the unit upstairs runs constantly as well.
i define mild as in we didnt have that much snow this year and temps were usually above -10 meanwhile last year it was MUCH colder -20 -30.
i also noticed sometihng else weird. when i came home the tstat was running in stage1 mode and the temp on the screen showed "21" as current temp indoors, but i have another meter sitting above my tstat and it showwed 22.5 in the room. so i turned off the HEAT mode and then turned it back on, the tstat had the proper room temp after i reset it. what would cause that?
|
|
|
|
|
geome
 Advanced Member
 Posts:987
 |
| 19 Feb 2010 07:14 AM |
|
If you have a Honeywell thermostat: "Why does the thermostat temperature not match my temperature thermometer in my home? Answer: Honeywell digital thermostats are designed to display the room temperature in a way similar to how people sense temperature. This means the thermostat takes into account not just the ambient air temperature but also the radiant temperature of objects in the room (i.e., wall and furniture). Room thermometers often only read ambient air temperature so they will not match the thermostat reading. Also, Honeywell thermostats do round in the display to the nearest whole number (half number in Celsius) and to the temperature setting. For example, if you have the thermostat set to 72 degrees the system will turn on and off but the inside reading on the thermostat never changes from 72. The actual temperature did fall to 71 or up to 73 and that is what turned on the heating or cooling but the thermostat display will stay at 70 to avoid jumping up and down constantly. Applies to model numbers: T8411,CT3600,T8400,RTH7600,VisionPRO,RTH2510,RTH6400,RTH2300,RTH7500,T8601D,RTH5100,TH6220,TH2110,TH8320,TH8110,TH6320,RTH3100,CT3500,TH1110,THX9321,TH1210,CT2400,TH3110,T8001,T8600D,Prestige,T8624,TH8321,T8011,RTH6300,CT3300,Chronotherm IV,TH4110,CT2800,T8024,TH3210,TH2210,CT8602,RTH8500,FocusPRO,RTH2410,RTH7400,CT3200,T8000,PC8900,RTH2520,YTH9421,T8602D,TH4210,RTH2310,T8611M,T8611G,TH6110,Chronotherm IV Plus,RTH110,T8401 Some other interesting stuff: On my Heat Pump Thermostat, my backup heat turns on when I move the temperature higher. Why? Answer: The thermostat takes the temperature override as a need to reach the new temperature setting right away. It will run the backup heat only as long as necessary to reach new temperature setting. Applies to model numbers: VisionPRO,RTH3100,THX9321,Chronotherm IV Plus,PC8900,RTH7400,TH8320,RTH7600,TH9421,RTH8500,T8411,TH8321,RTH7500,Prestige,YTH9421,T8611,F Stage two of heat or cool turns on right away when I move the temperature higher or lower. Why? Answer: The thermostat takes the temperature override as a need to reach the new temperature setting right away. It will run the second or third stage only as long as necessary to reach new temperature setting. Applies to model numbers: Chronotherm IV,TH8321,T8401,TH9421,TH6110,TH3210,TH8110,PC8900,TH4210,RTH6300,T8400,T8411,RTH7400,TH8320,Chronotherm IV Plus,Prestige,T8611M,CT8602,T8601D,YTH9421,FocusPRO,T8001,TH2210,CT3500,TH6220,T8602D,RTH7500,T |
|
| Homeowner with WF Envision NDV038 (packaged) & NDZ026 (split), one 3000' 4 pipe closed horizontal ground loop, Prestige thermostats, desuperheaters, 85 gal. Marathon. |
|
|
velcomrob
 New Member
 Posts:38
 |
| 19 Feb 2010 09:43 PM |
|
thanks for the information however im using a ClimateMaster ATP32 tstat.
i think i finally solved the problem.
what I did was increase my offset temp by 1 and increased ANTICIPATOR to 7
today the tstat reached 22 and shut off right after.
could it be a miracle. im crossing my fingers.
|
|
|
|
|
velcomrob
 New Member
 Posts:38
 |
| 20 Feb 2010 01:42 AM |
|
I have aonther question.
is it worse to for example set my temp to 19 at night on my lower level and then back to 22 when we wake up?
my installer was saying its better to keep a steady temp all the time.
is this true? |
|
|
|
|
decafdrinker
 Basic Member
 Posts:420
 |
| 20 Feb 2010 07:26 AM |
|
You've asked a dangerous question. Search the board for "setbacks" (if you dare). There's probably nothing more controversial than what to set the thermostat at at night!
|
|
|
|
|
| You are not authorized to post a reply. |
|
Active Forums 4.1
 |
Membership: |
 |
Latest:
croccohvacusa |
 |
New Today:
0 |
 |
New Yesterday:
0 |
 |
Overall:
35027 |
 |
People Online: |
 |
Visitors:
169 |
 |
Members:
0 |
 |
Total:
169 |
|
|
|