2930 MAPLE ST KAISER PERMANENTE 2025-05-12

KAISER PERMANENTE Site Prep #1 Electrical Service ASC & Clinic (HUB) March 18, 2020 Everett, WA Project No. 19.05002.00 B. DDC Analog Signal Wiring: Analog signal wiring for analog inputs and analog outputs shall be 18 AWG single or multiple twisted pair. Each pair greater than one shall be 100 percent shielded, and have 20 AWG drain wire. Exception is direct connect RTD wiring, which shall be 18 AWG minimum twisted pair, 100 percent shielded, and with 20 AWG drain wire. Each wire shall have insulation rated to 300 VAC. Cables shall have an overall aluminum -polyester or tinned -copper cable -shield tape, overall 20 AWG tinned copper cable drain wire, and overall cable insulation rated to 300 VAC. C. Plenum Cable: Plenum cable shall be UL approved for use only in accessible ceiling spaces. Plenum cable external to electrical raceway is permissible in the following locations: 1. DDC communication trunk serving application specific controllers within a building. 2. DDC system sensor wire installed above suspended accessible ceilings. 2.5 CONTROL COMPONENTS A. Actuators: Actuators shall have ISO 9001 quality certification and shall be UL Listed. Provide for all motor -operated dampers, valves, and AHU fan flow control device of sufficient size and type, matched to application and rated for maximum operating temperature/pressures conditions. 1. Electric or Electronic Actuators: Solid state positioner to stop automatically at end of travel. Complete with permanently lubricated gear train. Provide proportional, or 2-position (with adjustable SPDT auxiliary end -switch) actuators. Provide with spring return to normally -open or normally -closed on loss of control power. Power return type actuators shall not be acceptable. Modulating actuators shall be provided with position feedback signal corresponding to the actual valve position. All actuators shall be provided with visual position indicator. Substitution for 3-point floating type actuators suitable for pulse width modulation control in lieu of analog type actuators shall be permitted only for terminal units, [Unit Heaters][, ][Fan Coil Units][, ][Cabinet Heaters], [Finned Tube Radiation][, ][ and ][Convectors]. Use of non -analog type actuators for any other applications shall not be allowed without prior approval. [Provide position feedback for actuators as indicated in "DDC Point List".] 2. Manufacturers: a. TAMCO Series 1000. b. Ruskin CD-50. C. [Approved equal]. B. Control Valves: Valves shall have stainless steel stems and stuffing boxes with extended necks to clear the piping insulation. Valve bodies shall be designed for not less than 125 psig working pressure or 150 percent of the system operating pressure, whichever is greater. Valve leakage rating shall be 0.01 percent of rated Cv. Unless otherwise specified, bodies for valves 1-1/2 inches and smaller shall be brass or bronze, with threaded or union ends; bodies for 2 inch valves shall have threaded ends; and bodies for 2 inches to 3 inches shall be of brass, bronze or iron. Bodies for valves 2-1/2 inches and larger shall be provided with flanged -end connections. Valve Cv shall be within 100 to 125 percent of the calculated Cv. Valves shall provide effective control within pumping system total head pressure with a minimum of 100:1 turndown. Pressure drop not to exceed 5 psig at maximum flow rate for hydronic systems. 1. Two -Way Valves: Two-way modulating valves shall have equal -percentage characteristics. 2. Three -Way Valves: Three-way valves shall provide linear flow control with constant total flow throughout full plug travel. INSTRUMENTATION AND CONTROLS FOR HVAC 23 09 00 - 6