Room Sensible Heat Ratio

[AastroGuru]

I understood how to draw RSHR line for cooling and dehumidification. But for system with sensible heating without any humidification how to calculate Heat loads?
In cooling and dehumidification, an SHR of 0.75 comes in third quadrant like this

(Sorry, please join asterisks to get the line)

_________________room cond
_______________*
____________*
__________*
_______*
____ *
coil leaving

In heating (heater alone), I need to plot SHR of 0.75. Whether it will be like this in opposite direction in 4th quadrant.

room cond
__*
____*
_______*
_________*
____________*
____________heater coil leaving

Thanks in advance.