Despite this, significant changes were introduced to the design after just 5 years, resulting in the most popular model in the Konstal 105Na family.

In 1995, Konstal produced its first tram with a low-floor section, the two-section model 112N, which was sold to Warsaw.

[5] During this time, trams in Gdańsk were in poor condition, both in terms of rolling stock and infrastructure.

The 114Na tram is distinguished primarily from its predecessor by the additional middle section, which houses a low floor.

The body is made of closed profiles and represents a structural development of the Konstal 112N tram.

The connection between the sections is made using double articulation, previously unused in Poland, allowing for quick uncoupling and coupling of the mechanical and electrical parts.

[1] The tram is equipped with five doors, each 1,300 mm wide, folding outwards, secured with a triple system to prevent passengers from being caught (sensitive edges, phototube, overload switch).

Initially, due to numerous breakdowns, the trams spent more time in the depot than on the tracks.

However, an expert analysis conducted at the Gdańsk University of Technology revealed that the 114Na trams, like all others in service at the time, were not suitable for operating on such a line profile.

[11] In 1999, Gdańsk purchased additional trams tailored to the needs of disabled people – the Konstal NGd99, which could safely operate on this line.

[11] During the initial period of operation, these trams were characterized by a high incidence of electrical system failures,[2] which prompted a modernization by the Municipal Transport Company in Łódź [pl] in 2000.

During this repair, the tram received front panels similar to those used in the Moderus Beta MF 01, sandboxes were built, seats were replaced, and LED displays were installed.

[17] In March 2016, Gdańsk Municipal Transport Company announced a tender for the modernization of the second tram,[18] similar in scope to the one carried out in 2012 by Modertrans.

During the overhaul, the focus was on the interior and electronics, aiming to preserve as much of the original appearance as possible, as the carrier plans for the tram to become a historic vehicle in the future.