SynC · Topic
These are the standards in the SynC Standards library that cover Filtration. Each one is a complete, plain-language specification: the scope it applies to, the requirements that govern it, and a structured equipment datasheet listing the values a project has to decide — ratings, materials, setpoints, and the standards each is verified against. All of it is free to read without an account and published under CC BY-SA 4.0.
A standard usually carries several topics, so most of the entries below also appear under neighbouring subjects. The topics each one carries are listed on its own page.
Packaged dedicated outdoor air systems (DOAS) that condition 100% outdoor air to satisfy the building's ventilation requirement independently of the spaces' sensible cooling and heating. Covers indoor and outdoor/rooftop units, the air-to-air energy recovery section (enthalpy wheel, fixed-plate, heat-pipe, or runaround loop), the deep-cooling and dehumidification section (integrated DX, air-source or water-source heat pump, or chilled water), the reheat method that controls leaving dewpoint and supply air temperature (hot-gas reheat, modulating reheat, wraparound heat pipe, or dehumidification wheel), the heating source, filtration, fans, casing, and the controls integration that coordinates the DOAS with the parallel sensible system it serves. Applicable to DOAS paired with variable refrigerant flow, fan coils, chilled beams, water-source heat pumps, or sensible-only rooftop units, in commercial, institutional, multifamily, and light-industrial buildings.
The ongoing chemical and physical water treatment program for HVAC water systems in commercial, institutional, and industrial buildings. Covers closed hydronic loops (heating hot water, chilled water, dual-temperature, water-source and ground-source heat pump loops, and inhibited-glycol loops), open recirculating condenser water systems served by cooling towers and evaporative condensers, and steam and condensate systems at or below 150 psig. Addresses make-up water characterization, corrosion and scale inhibitor chemistry, biocide programs, cycles of concentration and bleed control, chemical feed and controller equipment, side-stream filtration, sample ports and routine monitoring, corrosion coupon reading, the Legionella risk-management documentation required under ANSI/ASHRAE 188, the service contract that sustains the program, and seasonal lay-up.