  We study a pulsating variable post-AGB star V534 Lyr = HD172324 based on five
high resolution spectra (R = 60 000) obtained with the NES echelle spectrograph
of the 6--meter Russian telescope (BTA) in 2010 and 2013. Using the atmosphere
modeling method and the Kurucz model set, we obtained the effective temperature
T$_{\rm eff}$ = 10500 K, surface gravity log g = 2.5, and microturbulent
velocity ${\rm \xi_t}$=4.0 km/s. The underabundance of the iron group elements
${\rm [Met/H]_{\odot} = -0.50}$ was detected. This fact in combination with
high spatial velocity indicates that V534 Lyr does not belong to the disk
population. The radial velocity gradient in the V534 Lyr atmosphere is minimum:
differential shifts of lines are close to measurement errors The spectral class
A0 Iab corresponds to the distance to V534 Lyr, d$\approx$6 kpc.
