You can search the 5 series installation manual. There is a LO (lockout) terminal on the ABC board. Manual says LO is turned ON during a lockout...
If possible, design the loop so you only need one pump. Make sure you use an efficient pump. Looks like the QT two pump single speed flow center...
You are right on the C vs N. I don't know how I messed that up. I hope you get your unit soon. The Symphony performance monitoring with the WiFi...
EDITED to correct comment on HX... If you're saying the unit they originally brought out was a NDV064K111CTL0DN, then it did have almost every...
What were the complete model numbers of what they delivered and what you were supposed to get?
No. I'd suggest you do an Internet search for the installation manuals and look up the procedure.
Sounds like the leaving air temp is too low, triggering the low temperature lockout. Increasing airflow will raise the DAT. With three zones, you...
The 7 Series does contribute to the problem, as discussed earlier in this thread. The "active dehumidification" mode unique to the 7 Series lowers...
I ended up placing a portable dehumidifier in my basement near the 7 Series and letting it drain into the condensate pump. That seems to have...
The default is 0.5F/0.5F/0.5F, which is where I leave mine. The differentials are cumulative, so with your settings, Stage 2 won't come on until...
A 7 Series with three zones seems like a better fit, since it can modulate capacities and airflow to better meet those loads. I have a zoned 4T 7...
The default differential is 0.5, so I would leave it at that and not worry about it.
There was a time period around when you bought your system where all HVAC manufacturers, GSHP and ASHP alike, were having failures of their copper...
A really good installer would eat the cost difference, since it was their error installing a system that was too small. Check your contract. Many...
Good luck. While he's there ask him to use the AID tool (or his installer Symphony web interface) to show you the water flow rate on the system as...
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