Basement walls are defined just like a wall next to an un-heated space. Define the thermal properties and the temperature differential. Since most ground temperatures are around 50 F. use this as the temp for the un-heated space.
To define the basement walls you have to use slab below grade. When you do that more options will be shown for both floor and wall r-values. The basement wall construction is not as detailed as the typical wall construction that you would input into the library section in the program.
_______________________________________ Ground Level
| Basement 1 |
|________________| <---- What is this slab floor called?
| Basement 2 |
|________________| <---- This is slab-on-grade or -below-?
+ +
Besides, I'm trying to find the Carrier Handbook. Thanks!
Using HAP i would deal with your scenario in the following manner.
Basement 1 - shares a common floor / ceiling with Basement 2 and common floor / ceiling with Ground level.
I would treat Basement 1 floor and ceilings as partions, in fact i would treat all walls this way too, just choosing for floor tab (above conditioned space).
Basement 2 - shares a common floor / ceilgin with Basement 1 but has a slab below grade.
I would treat all the walls and the ceiling to basement 2 as partitions and enter the slab below grade details for this level into the floor tab.