A confidential client had an existing -25º C cold storage facility with major temperature control issues. The facility experienced severe floor slab heaving due to a malfunction of the underfloor heating system. Precis was retained to renovate the area to correct the slab heating issues. Precis also replaced the configurable temperature units (CTUs) to provide a more robust cooling system with multiple levels of mechanical and electrical redundancy and the ability to operate in varying refrigeration or freezer modes to support the needs of the client’s business.
Precis provided full mechanical, electrical, plumbing, and fire protection engineering services for the implementation of a new refrigeration system that could accommodate varying temperature needs, ranging from -25º C to +5º C, and maximize system reliability and redundancy. The client will store over $500 million in finished vaccines at any given time. To ensure maximum system uptime, Precis designed a six-circuited refrigeration system that could maintain box operation under multiple mechanical or electrical power failure scenarios.
Precis also designed an innovative, efficient electrical underfloor heating system with two levels of redundancy. The new system included full emergency power backup and separate liquid nitrogen system containing six evaporators for -25º C backup.