Dry Contacts Question for TP-PRHA
#1
Member
Thread Starter
Join Date: Apr 2009
Posts: 17
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Dry Contacts Question for TP-PRHA
I have a TP-PRHA controlling a Honywell TruSteam Humidifier (Carrier Advantage series Hybrid Oil/Heat Pump).
The installer was perplexed on how to install the Trusteam without adding a relay to avoid the dry contact voltage. So, he added the relay, and all works fine.
I see that Option 19 on the stat can be set to OFF which will keep any voltage from being pumped into the humidifier (and frying it) when turning it on/off.
My question is, do I lose anything by keeping the relay there rather than connecting it to the stat terminal, and turning off option 19?
The installer was perplexed on how to install the Trusteam without adding a relay to avoid the dry contact voltage. So, he added the relay, and all works fine.
I see that Option 19 on the stat can be set to OFF which will keep any voltage from being pumped into the humidifier (and frying it) when turning it on/off.
My question is, do I lose anything by keeping the relay there rather than connecting it to the stat terminal, and turning off option 19?
#2
You are fine with how it's wired up now, unless you have variable speed blower on your furnace, then I'd suggest to have it rewired, and then take advantage of the dehumid mode.
#4
Dehumid is for the summer month when the humidity is high in the home, it will slow down the blower speed to help remove the humidity from the air.
What model do you have on the furnace?
What model do you have on the furnace?
#6
ok, Got everything together, and we can leave how the humidifier is wired up.
This how I'd suggest it should be wired.
T-stat--------Furnace-------HP
Rh/Rc-----------R-------------R
C---------------C-------------C
W1-------------W------------W2
Y---------------Y/Y2------------Y
O---------------O-------------O
G---------------G
D1--------------DH (remove jumper between DH and R)
D2 (Add a jumper to R.
Then Option #19 to 2.
This how I'd suggest it should be wired.
T-stat--------Furnace-------HP
Rh/Rc-----------R-------------R
C---------------C-------------C
W1-------------W------------W2
Y---------------Y/Y2------------Y
O---------------O-------------O
G---------------G
D1--------------DH (remove jumper between DH and R)
D2 (Add a jumper to R.
Then Option #19 to 2.
#7
Member
Thread Starter
Join Date: Apr 2009
Posts: 17
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Jay11J, thank you so much for all your help.
I would like to say this new system is very complicated, but also has some incredible features. I am really glad I went with it.
Beer 4U2
I would like to say this new system is very complicated, but also has some incredible features. I am really glad I went with it.
Beer 4U2
#8
Yeah, it can be a complex system, but the variable speed is great!
I have two stage gas w/. variable speed blower and Love it.. I would never go back to a standard blower.
For kicks, I'd like to see what your dip switch settings are on the furnace board, and also all the option settings on the t-stat.
I have two stage gas w/. variable speed blower and Love it.. I would never go back to a standard blower.
For kicks, I'd like to see what your dip switch settings are on the furnace board, and also all the option settings on the t-stat.
#9
Member
Thread Starter
Join Date: Apr 2009
Posts: 17
Upvotes: 0
Received 0 Upvotes
on
0 Posts
If you tell me how to get to the furnace board, I will write them down.
For the stat - I can write those down too.
I am wondering if the upgrade to the memory card thing is worth it. I think it is $100, and if the internal battery ever goes bad, might be worth having a settings backup....
Thoughts?
For the stat - I can write those down too.
I am wondering if the upgrade to the memory card thing is worth it. I think it is $100, and if the internal battery ever goes bad, might be worth having a settings backup....
Thoughts?
#10
Member
Thread Starter
Join Date: Apr 2009
Posts: 17
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Here are the settings on the Stat:
Option Setting
Option 01 hh
Option 02 3
Option 03* F
Option 04 OF
Option 05 L
Option 06 ON
Option 07 OF
Option 08 OF
Option 09 30
Option 10 C
Option 11 2
Option 12 90
Option 13 0
Option 14 8
Option 15 OF
Option 16 4
Option 17 15
Option 18* 1
Option 19 OF
Option 20 0
Option 21* OF
Option 22
Option 23
Option 24* P
Option 25* 4
Option 26 54
Option 27 86
Option 28 OF
Option 29 OF
Option 30* OF
Option 31* ON
Option 32
Option 33 2P
Option 40 ON
Option 41 ON
Option 42 OF
Option 43 OF
Option 44 10
Option 99
Any glaring issues?
Option Setting
Option 01 hh
Option 02 3
Option 03* F
Option 04 OF
Option 05 L
Option 06 ON
Option 07 OF
Option 08 OF
Option 09 30
Option 10 C
Option 11 2
Option 12 90
Option 13 0
Option 14 8
Option 15 OF
Option 16 4
Option 17 15
Option 18* 1
Option 19 OF
Option 20 0
Option 21* OF
Option 22
Option 23
Option 24* P
Option 25* 4
Option 26 54
Option 27 86
Option 28 OF
Option 29 OF
Option 30* OF
Option 31* ON
Option 32
Option 33 2P
Option 40 ON
Option 41 ON
Option 42 OF
Option 43 OF
Option 44 10
Option 99
Any glaring issues?
#11
Here is the manual if you don't have one.
See page 19, Fig. 19, you'll see SW1 to SW4.
I am wondering if the upgrade to the memory card thing is worth it. I think it is $100, and if the internal battery ever goes bad, might be worth having a settings backup....
#12
Option 08 OF
Option 09 30
Option 12 90
Option 14 8
Option 16 4
Option 17 15
Option 19 OF
Option 22
Option 23
Option 23
22 and 23 should be OF
Option 43 OF
Option 44 10
#13
Member
Thread Starter
Join Date: Apr 2009
Posts: 17
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Ok, some questions:
First, can I buy you a beer somehow?
Second:
Option 9 at 20, Is this heat pump efficient under 30? I would think it goes into the defreeze cycle and becomes inefficient.
Option 12 - We set it and forget it
Option 14 - I have been "honing" this with a portable meter, I think 6 would be just right....
Options 22&23 are not available
Option 43 - Is this (electric heat staging) applicable to Hybrid heat?
Option 44 - Should be Off for hybrid, right?
First, can I buy you a beer somehow?
Second:
Option 9 at 20, Is this heat pump efficient under 30? I would think it goes into the defreeze cycle and becomes inefficient.
Option 12 - We set it and forget it
Option 14 - I have been "honing" this with a portable meter, I think 6 would be just right....
Options 22&23 are not available
Option 43 - Is this (electric heat staging) applicable to Hybrid heat?
Option 44 - Should be Off for hybrid, right?
#14
I'll pass on the bear.. Thanks for the offer tho.
No, you still got heat in the air.. Set it and try it out for next year.. If you find out that it can't keep up and oil is kicking in to help out often, then you can go up.
6 times an hour is too short of cycle, and you are not getting the full efficiency, and with the short run time nothing has a chance to warm up.
should be off, you don't have electric back up.
I reread it, and yes, it should be off.
Option 9 at 20, Is this heat pump efficient under 30? I would think it goes into the defreeze cycle and becomes inefficient.
Option 14 - I have been "honing" this with a portable meter, I think 6 would be just right....
Option 43 - Is this (electric heat staging) applicable to Hybrid heat?
Option 44 - Should be Off for hybrid, right?
#15
Member
Thread Starter
Join Date: Apr 2009
Posts: 17
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Can I use that feature to dehumidify in the summer, and keep the TruSteam hooked up to dehumidify in the winter (during heating)?
#16
Yes, I'm still here.
Wire T-stat's D1 to furnace's DH (remove jumper between DH and R on the furance.)
Add a jumper to R and D2 on t-stat.
Then Option #19 to 2.
you mean humidity for winter, not dehumid?
Wire T-stat's D1 to furnace's DH (remove jumper between DH and R on the furance.)
Add a jumper to R and D2 on t-stat.
Then Option #19 to 2.
you mean humidity for winter, not dehumid?
#17
Member
Thread Starter
Join Date: Apr 2009
Posts: 17
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Yes, humid for winter.
Thanks again!
Right now we are fighting AC problems, where the cfm of the variable speed blower doesn't seem to quite "crank up" if needed, and therefore it does not catch up. My installer came out, and modified some jumper setting that adds 25% cfm, so hopefully that works. Before it just never seemed to really blow out the cold air.
Anyhow, will keep you in tuned, as you have helped so much!
Thanks again!
Right now we are fighting AC problems, where the cfm of the variable speed blower doesn't seem to quite "crank up" if needed, and therefore it does not catch up. My installer came out, and modified some jumper setting that adds 25% cfm, so hopefully that works. Before it just never seemed to really blow out the cold air.
Anyhow, will keep you in tuned, as you have helped so much!
#19
Member
Thread Starter
Join Date: Apr 2009
Posts: 17
Upvotes: 0
Received 0 Upvotes
on
0 Posts
But wouldn't decreased air flow result in lack of cooling?
I think this is what he did to increase cfm's:
Table 11c—58VMR105 Size Dip Switch CFM
Adjustments in All Modes
Set 1/2 to ON/OFF
Created a jumper to add this 24VAC to DH?
From manual page 15 - "In cooling-Dehumidification mode, with no 24 VAC input to DH, the CFM is reduced by 15%"
So essentially, those two settings add 25% more cfm's.
Honestly though, from the settings on the stat, Option 42 is still set to OFF since I have not wired up the TruSteam like you said, so I am wondering if I will even see that additional 15%.....
I think this is what he did to increase cfm's:
Table 11c—58VMR105 Size Dip Switch CFM
Adjustments in All Modes
Set 1/2 to ON/OFF
Created a jumper to add this 24VAC to DH?
From manual page 15 - "In cooling-Dehumidification mode, with no 24 VAC input to DH, the CFM is reduced by 15%"
So essentially, those two settings add 25% more cfm's.
Honestly though, from the settings on the stat, Option 42 is still set to OFF since I have not wired up the TruSteam like you said, so I am wondering if I will even see that additional 15%.....