Equipment installation conditions must be specified in the tender documents
Installation conditions must be clearly defined in MEP equipment tenders: foundation requirements (dimensions, elevation, reserved opening locations and loads), space requirements (maintenance space, hoisting access, operating face dimensions), utility connection requirements (voltage, frequency, capacity, water supply pressure, flow rate, pipe diameter), ventilation and heat dissipation requirements, and smoke exhaust and drainage requirements. The tender documents shall provide equipment foundation drawings and installation condition tables. Suppliers shall submit an installation condition confirmation letter confirming compliance with the requirements or proposing adjustment recommendations.
Pipe connection and electrical wiring requirements
The tender documents shall specify technical requirements for pipe connections and electrical wiring. Piping: connection locations and dimensions, connection method (flange or welding), flange standard (GB/HG/ANSI) and pressure rating, compensation measures (expansion joint requirements), insulation requirements. Electrical: main power supply requirements (voltage, number of phases, frequency, rated current, starting method), control power supply requirements, signal interface requirements (BAS communication protocol BACnet/Modbus, monitoring point list), grounding requirements (TN-S or TN-C), cable requirements.
Technical management of commissioning and trial operation
The tender documents shall specify technical requirements for commissioning and trial operation. Standalone commissioning requirements (2-hour no-load trial operation without abnormalities, parameter testing during load trial operation), system integrated commissioning requirements (interlocked commissioning with upstream and downstream equipment and piping, control logic verification), performance testing requirements (test methods and acceptance criteria for key performance indicators). Commissioning management requirements: commissioning plan preparation, personnel qualifications, commissioning records and commissioning sign-off.
Equipment protection requirements during construction
The tender documents shall specify protection requirements for equipment after arrival during the construction period. Storage protection (storage environment temperature, humidity, dust and rain protection), handling protection (safety requirements, prohibition of impact and tilting), installation process protection (control cabinet dust protection, pipe connection sealing), finished product protection (covering with protective film, setting warning signs). Division of protection responsibilities: from delivery to completion of installation, the construction contractor is responsible; from completion of installation to final acceptance, the general contractor is responsible.