As the core placement area for cold storage units, machine room space planning and maintenance access reservation are directly related to the feasibility of later operation and maintenance. To save space costs in the early stage, if the compressor room space is inadequate or sufficient maintenance access is not reserved during design, it may seem to maximize space utilization, but in fact, it will make later maintenance difficult to carry out. Minor faults will escalate into major issues due to delayed handling, which instead increases operation and maintenance costs and shutdown risks.

          A narrow machine room directly restricts maintenance operations. Insufficient space around the unit prevents normal use of maintenance tools, making basic work such as component disassembly, cleaning, and calibration difficult to implement. Meanwhile, a narrow space is prone to disorderly arrangement of pipelines, which further occupies operational space, increases the risk of collision and misoperation during maintenance, and may cause secondary faults.

           Lack of maintenance access breaks the maintenance loop. Without standardized maintenance access, maintenance personnel cannot safely reach key parts of the unit, forcing work such as condenser cleaning, compressor inspection, and pipeline leakage detection to be suspended. Long-term accumulation of minor faults accelerates the aging of unit components, reduces operational stability, and ultimately leads to unscheduled shutdowns, affecting the normal operation of the cold storage.

           Scientific machine room space planning must balance practicality and operation and maintenance: reserve sufficient redundant space according to unit size to ensure at least a standard maintenance operation distance around the unit; independently plan a through-type maintenance access, with width and height suitable for the passage of maintenance tools and personnel; reasonably arrange the positions of pipelines and units to avoid occupying operational space, while reserving room for later expansion and renovation.

           Machine room space planning is by no means "just enough to fit the unit", but a prerequisite for long-term operational sustainability. Reserving sufficient space and maintenance access in the early stage, although occupying part of the site, can ensure the smooth progress of maintenance work, timely resolve potential faults, extend the service life of the unit, and clear operational obstacles for the stable operation of the cold storage