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• <br /> KAER <br /> PER ANENTE <br /> Project <br /> Kaiser Permanente Everett <br /> Medical Clinic Expansion <br /> 2929 PINE STREET <br /> i EVERETT,WA 98201 <br /> AAV <br /> FM Prepared for <br /> HWS <br /> rs HWP-1 KAISER FOUNDATION <br /> AS-1 VFD HEALTH PLAN, INC. <br /> HWS <br /> N.C. <br /> D <br /> HWP-2 <br /> VFD <br /> TS TS � <br /> RV:SET AT 65 PSIG TS <br /> PRV:SET AT 50 PSIG D HWS <br /> BFP HWP-3 <br /> MAKE-UP WATER VFD , <br /> N.C. <br /> Hellmuth,Obata&Kassabaum,Inc. <br /> 1218 Third Avenue,Suite 1315 <br /> NAT GAS METER tNATGASTER NC ET-1 Seattle,WA 98101 USA <br /> t+1 206 493 1771 f+1 206 493 1778 <br /> All reproduction&intellectual property rights reserved <br /> 2019 <br /> In Association with <br /> DP <br /> LOW <br /> ortens°n <br /> WATER <br /> Contractor <br /> CUTOFF 10230 NE Points Drive,Suite 300 <br /> Kirkland,WA 98033 <br /> BUR-2 BLR-1 CF-1 COnXtech,Inc <br /> N.C. Structural Fabricator <br /> N.C. 6701 Kell Center Parkway,Suite 150 <br /> Pleasanton,CA 94566 <br /> N.C. <br /> KPFF Consulting Engineers <br /> RTU Civil t Structural Engineering <br /> BOILER MIN TERMINAL CAVNAV HEATING 1601Seat Fifth A venue Suite 1600 <br /> FLOW UNIT REHEAT COIL COIL <br /> 8101 <br /> BOILER BOILER BYPASS ( ') <br /> CONTROL FS CONTROL FS Me etti <br /> PANEL PANEL MEP+FP Engineering <br /> N.C. N.C. 2013 4th Avenue,Suite 200 <br /> Seat <br /> [Is WA 98121 <br /> Key Plan <br /> TS <br /> HWR 4 HWR <br /> HEATING WATER DIAGRAM <br /> HEATING WATER SYSTEM SEQUENCE OF OPERATION <br /> A. BOILERS:BUR-1 AND BUR-2. <br /> 1. THE SYSTEM SHALL START ON A LEAD/LAG SEQUENCE AND SHALL UTILIZE BOILER MANUFACTURER'S PROGRAMMED SEQUENCE TO ROTATE THE LEAD Professional Seals <br /> BOILER.THE LEAD SYSTEM SHALL BE ENABLED IF: <br /> i. THE OUTDOOR AIR TEMPERATURE IS LESS THAN A LOCKOUT TEMPERATURE OF 75'F(ADJ),AND <br /> ii. LOCKOUT TEMPERATURE POINT,HOT WATER SUPPLY TEMPERATURE SETPOINT AND PLANT ENABLE POINT SHALL BE WRITABLE AND ACCEPT �Q•OF g <br /> COMMAND FROM THE OPTIMIZATION SERVER. 4, <br /> 2. 1.BOILER THEH ISOLATION CONTROL INPUT/OUTPUT POINT SUMMARY e <br /> THE HOT WATER ISOLATION VALVE AT EACH BOILER SHALL OPEN ANYTIME THE BOILER IS CALLED TO RUN AND CLOSE WHEN A BOILER IS DISABLED. q may. <br /> 11 OVERRIDE OF THE ISOLATION VALVE AND VALVE POSITION STATUS MAY BE ACCOMPLISHED THROUGH THE BAS. <br /> 3. THE LEADILAG ROTATION SHALL BE MANAGED ON A RUNTIME BASIS BY LOCAL BOILER CONTROLLER.THE BOILER CONTROLLER SHALL SWITCH THE LEAD BOILER 248Ya fk <br /> EVERY 24 HOURS. 9 Eq <br /> i. IF THE LEAD BOILER FAILS,THE LAG BOILER WILL RUN, EQUIPMENT LOCATION POINT NAME AI DI AO DO REMARKS 'CISTE 'G. <br /> 4. BOILER STAGING AND FIRE RATES SHALL BE OPTIMIZED BY LOCAL BOILER CONTROLLER TO CONTROL BOILER AT THE MOST EFFICIENT OPERATING POINTS.WHEN TONAL <br /> THE PEAK DEMAND LOADS REQUIRE TWO BOILERS TO OPERATE IN PARALLEL:START THE LEAD BOILER AT LOW FIRE AND UP TO 60%FIRING RATE,THEN START THE HEATING WATER START/STOP X <br /> SECOND BOILER.THE SYSTEM SHALL GO BACK TO SINGLE BOILER OPERATION WHEN FIRING RATE DROPS TO 40%. <br /> B. PUMPS:HWP-1,HWP-2,AND HWP-3. BILERS BASEMENT HWS TEMP X No. Description Data <br /> 1. PUMPS SHWP-2 AND HWP-3 SHALL MOSTLY OPERATE IN A LEADILAG FASHION,EXCEPT AT PEAK DEMAND WHEN THEY SHALL RUN IN PARALLEL.PUMP HWP-1 BeLR-1,BLR-2 SCHEMATIC DESIGN 2020/01/24 <br /> SHALL START FIRST TO MAINTAIN THE MINIMUM FLOW THROUGH THE BOILERS AS REQUIRED BY THE MANUFACTURE. HWR TEMP X DESIGN DEVELOPMENT 2 02 010 511 5 <br /> DESIGN DEVELOPMENT ADDENDUM 2020/06/08 <br /> 2. PUMPS SHALL BE ENABLED BASED ON THE BUILDING DEMAND AND IF THERE IS NO DEMAND ALL PUMPS SHALL BE OFF, BOILER STATUS X 50%CONTRACT DOCUMENTS 2020/07/31 <br /> 3. THE PUMP VFD WILL MODULATE TO MAINTAIN THE SYSTEM DIFFERENTIAL PRESSURE SETPOINT. 75%CONTRACT DOCUMENTS 2020/09/25 <br /> 4. WHEN THE SYSTEM IS ENABLED,THE LEAD PUMP STARTS FIRST,AND AFTER THE FLOW THROUGH THE BOILER IS PROVEN,THE BOILER SHALL ENABLE.WHEN THE GENERAL ALARM X PERMIT SET 2020/11/13 <br /> SYSTEM IS DISABLED,FIRST DISABLE THE BOILER,WHILE THE PUMP SHALL CONTINUE TO RUN,THEN TURN OFF THE PUMP. ISSUED FOR CONSTRUCTION 2021/03/19 <br /> 5. ON FAILURE OF THE LEAD PUMP,THE LAG PUMP SHALL RUN. LOW FLOW ALARM X <br /> 6. PUMP STAGING AND ROTATION SHALL BE MANAGED ON A RUNTIME BASIS BY LOCAL BOILER CONTROLLER.ALTERNATE LEADILAG OPERATION OF PUMPS BASED <br /> ON ACCUMULATED RUN TIME. HIGH TEMP ALARM X <br /> 7. PUMP STAGING SHALL BE CONTROLLED BY LOCAL BOILER CONTROLLER TO SYSTEM DIFFERENTIAL PRESSURE REQUIREMENTS. WHEN LEAD PUMP,DUE TO <br /> INCREASED FLOW,CANNOT MAINTAIN MINIMUM PRESSURE DIFFERENTIAL AS SENSED BY PRESSURE DIFFERENTIAL SENSOR(S),LAG PUMP SHALL START.STOP LAG HEATING WATER PUMPS START/STOP X <br /> PUMP WHEN LEAD PUMP CAN DELIVER REDUCED FLOW. HWP-1,HWP-2,HWP-3 BASEMENT <br /> STATUS X <br /> C. BOILER MINIMUM FLOW BYPASS VALVE.THE MINIMUM FLOW THROUGH THE BOILERS IS CONTROLLED BY A BYPASS VALVE.FLOW METER DOWNSTREAM OF <br /> THE BOILERS MAINTAINS VALVE OPEN TO PROVIDE MINIMUM OF 80 GPM TO THE BOILERS. VFD SPEED X <br /> D. HEATING WATER SUPPLY TEMPERATURE SETPOINT AND RESET <br /> 1. THE HEATING WATER SYSTEM SHALL OPERATE IN 130-110-F(ADJ)RANGE. <br /> 2. THE HEATING WATER SUPPLY TEMPERATURE SETPOINT SHALL BE RESET FROM THE OPTIMIZATION SERVER BY OVERRIDING THE LOCAL SETPOINT. BYPASS VALVE CONTROL X X <br /> CPS PRESSURE SENSOR X <br /> PUMPALARM X <br /> KIP Project No: CAP020407 <br /> HOK Project No: 19.05002.03 <br /> Sheet Title: <br /> HEATING WATER <br /> CONTROLS <br /> tL <br /> a <br /> CONTROLS — HEATING WATER gins or ie 30 x42 Do no scale this drawing M621 NONE Sheet Number <br /> M621 <br />