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Heating Boilers (B -1, B -2, B -3) a. Boilers shall be controlled by integral Lochinvar controls. b. Boiler shall maintain HWS setoint at aquastat Al, A2 & A3 respectively. HWS setpoint shall be reset based on outdoor temperatures (180 °F @ -20°F to 130° @ 70 °F). c. P -1, P -3 or P -5 boiler pumps shall run whenever associated boiler is firing. d. Upon a call for heating, zone control vlave shall open and associated heating system pump P -2, P -4 or P -6 shall start. e. Upon a call for domestic water heating, zone control valve shall open, heating system pump shall start and associated boiler HWS setpoint shall be ramped up to 170 °F (adj.). 2. Snowmelt Boiler (B4) a. Boiler shall be controlled by integral Lochinvar controls. b. Boiler shall maintain HWS setoint at aquastat A4 of 120 °F (adj.). c. P -7 boiler pump shall run whenever associated boiler is firing. d. Upon a call for snowmelting, snowmelt system pump P -8 shall start. e. Snowmelt system shall be controlled by a snow sensor. Contractor shall examine the existing system and determine if a snow sensor is present. If there is an existing snow sensor, contractor is to evaluate the existing condition and replace with new if necessary. If there is not an existing snow sensor, a new snow sensor shall be provided to control the new snowmelt system. Bid Alternate: 1. Provide add alternate (seperate line item) to replace all existing expansion tanks and air separators with new. i i o� (1) INCLUPE5 5E(;C?NUAKT t:5U1Lt_K r" Ir NOTES � 1 - HIGH ,4LTITUDI= KIT 2 - INTEGRAL CONTROLS 4 - 305P. PROPYLENE GLYCOL 5 - 501. PROPYLENE G LYCO L 3 - ASME RATED (H- STAMP) 6 - CONDENSATE NEUTRILIZER SYM. TYPE S.L. INPUT ALT O UTPUT FUEL DELTA` � a ELEC. MANUFACTURER EFF. WEIGHT NOTES (SERVES) DESCRIPTION MBH M15H T � 44 4 MODEL NO. 4 MODEL u } (LBS) ul 5 -1 STAIN STL. 150 109 NAT. 30 � �� � 120/1 LOCHIN e09-1 1, 2, 3, 4 (UNIT 1) CONDENSING GRUNDFOS 13 -1 BOILER PUMP GAS � 5 A K5N 150 P -1 S 11 5 -2 STAIN STL. 150 109 NAT. 30 � , �� 120/1 LOCNINVAR 90 0 129 (UNIT 2) C ONDENSING GRUNDFOS GRUNDFOS UNIT 1 5Y5TEM PUMP GAS 5 A K5N 150 1= -2 12 17 5-3 STAIN STL. 210 153 NAT. 30 �. �� 120/1 LOC NIN V AR 90�Q 15� 1, 2, 3 ` 4 (UNIT 3) CONDENSING GRUNDFOS 8 -2 80lLER PUMP GAS g 5 A K5N 210 P -3 S li 5-4 STAIN STL. 399 291 NAT. 30 �� �� 120/1 L.00HINVAR 130% 0ro 285 ' (SNOWMELT) CONDENSING GRUNDFOS UNIT 2 SYSTEM PUMP GAS 5A K5N 399 P -� l2 1� (1) INCLUPE5 5E(;C?NUAKT t:5U1Lt_K r" Ir EXISTING 50ILEIR FLUE CP,45 50 ILER RO LAYOQUT 1/2 " = 1' CODED NOTE: i RELOCATE EXISTING EXPANSION TANKS AND AIR SEPARATORS 50 THEY ARE NOT .45OVE BOILERS (TYP). t2 NEUTRALIZATION KIT (TYP.). (� 3 PV C COMfBU5TION AIR PIPE TO 5 01LER5 15 -1, 5-2 4 -3-3 O 4 114 PVC GOM5USTION AIR PIPE TO }OILER 5 -4 . 3 CPVC 501LER FLUE. PROVIDE MIN. P GLEARANCE TO COM5U6TI5LE5. RE: SCHEMATIC 'E' FOR CONTINUATION. 4 "0 CPVC 50 I LER FLUE. PROVI MIN. P CLEARAN TO C O MBUSTIBLES. RE- SCHEMATIC 'E' FOR CONTINUATION. BOILER VENT SHALL 5E PROPERLY 5UPP0RTED AND BE SLOPED A MIN. OF 1/4 PER FOOT SACK TO 501LER5. TO INSTALL FLUE /CA PIING WITH PROPER CLEARANCES AND 5LOPE, RELOCATION OF EXISTING SUPPLY FAN AND A550CIATED DUCTWORK MAY 5E REQUIRED. REMOVE EXISTING HOODS. REPAIR AS REQUIRED. 10 INSTALL NEW 24x12 GRILLE FOR PASSIVE MEGH. ROOM COOLING. INCLUDE MANUAL VOLUME DAMPER. UNIT 2 F-)EC< FLOOR COVER OPENING WITH BIRD SCREEN, BOILER FLUE SHALL EXTEND MIN. 2" BEYOND SURFACE OF SOFFIT. PROPOSED SOFFIT COVER OPENING WITH BIRD SCREEN. I' MIN, NOTES- 1. SEPARATION BETWEEN BOILER FLUE AND G.A. INTAKE MUST NOT EXCEED 15" FOR AN INDIVIDUAL BOILER. TERMINATE PER MANUFACTURER'S INSTALLATION INSTRUCTIONS. w nr � �► G.A. PIPES (TYP.) BOILER FLUES (TYP.) REUSE EXISTING AIR SCOOP WITH VENT. ? 11 r - 2 ^L -41 `U REUSE EXISTING— EXPANSION TANK. NOT E S: 1. ALL VALVES 4 APPURTENANCES ARE NOT SHOWN. PROVIDE AS REQUIRED FOR PROPER INSTALLATION AND MAINTENANCE, UNIT 1 50 IL.ER PIPING; &CHEMAT I C NO SCALE Al T lA CL05ELY SPACED TEES I' HOSE BIB TO EXISTING 8 -1 r� t/ f f 1 ROUTE 501LER CONDENSATE THROUGH A NEUTRALIZATION BASIN PRIOR TO DISCHARGE INTO FLOOR DRAIN WITH AIRGAP REUSE EXISTING AIR SCOOP WITH VENT. T l " -4 REUSE EXISTING— EXPANSION TANK. T CLOSELY SPACED A2 TEES HOSE BIB NOTES 1. ALL VALVES 4 APPURTENANCES ARE NOT SHOWN. PROVIDE AS REQUIRED FOR PROPER INSTALLATION AND MAINTENANCE. UN 1 1 2 Q0 I L. R P I P I I NSG ROUTE BOILER CONDENSATE THROUGH A NEUTRALIZATION 5CHEMAT (G E3A51N PRIOR TO D15C HARGE NO SCALE INTO FLOOR DRAIN WITH AIR U' r REUSE EXISTING AIR SCOOP WITH VENT. T1 /2 REUSE EXISTING — EXPANSION TANK. NOTES:. 1. ALL VALVES 4 APPURTENANCES ARE NOT SHOWN. PROVIDE AS REQUIRED FOR PROPER INSTALLATION AND MAINTENANCE. LIMIT 3 501LER PIPIN NO SCALE IM 1 ROUTE BOILER CONDENSATE THROUGH A NEUTRALIZATION BASIN PRIOR TO DISCHARGE INTO FLOOR DRAIN WITH AIRGAP REUSE EXISTING AIR CLOSELY SPACED SCOOP WITH VENT. A4 TEES r 0/2' 2" 1 11 HOSE BIB REUSE EXISTING — EXPANSION TANK. W 501 LER FLUE TE RMINATION S NO SCALE NOT 5: 1. ALL VALVES 4 APPURTENANCES ARE NOT 5 -4 SHOWN. PROVIDE AS REQUIRED FOR PROPER INSTALLATION AND MAINTENANCE. 1/2 fl &NOWMELT &Y6TEM ROUTE BOILER CONDENSATE THROUGH A NEUTRALIZATION SO E S, PIPING 6CHEMATIG BASIN PRIOR TO DISCHARGE NO SCALE INTO FLOOR DRAIN WITH AIRGAP CLOSELY SPACED A3 r TEES T 11/ 1 HOSE BIB w W Z z w 3 r z O N il! z w r f- O D A N Z A� A O }- IL ft ff LU to A v � a z R as U_ ( V ru lu a w� u1 z Uj W lu zw u1 a W = IaC t- w i1� Q 1L tK IL OZ� �v w IL �- wff - 3 H d � Z di Z O w (L > w w Cj0 W W CY Wz� zz� �W U UJ v ACCESSORIES/ NOTES W Q � a SYM. GPM TDH HP VOLT/PH MANUFACTURER DESCRIPTION 4 MODEL NO. u } ul GRUNDFOS 13 -1 BOILER PUMP 3 P -1 S 11 1/25 11511 UPS I5 -58F GRUNDFOS GRUNDFOS UNIT 1 5Y5TEM PUMP 1= -2 12 17 1 / ro 115/1 UPS 2G - GRUNDFOS 8 -2 80lLER PUMP 3 P -3 S li 1125 115/1 UPS I5 -58F GRUNDFOS UNIT 2 SYSTEM PUMP 2 P -� l2 1� 1 /(0 115 /1 UPS 2ro -99F GRUNDFOS 5 BOILER PUMP 2 P -5 11 18 1/� 115/1 UPS 2ro-99F GRUNDF05 UNIT 3 SYSTEM PUMP 2 P -� It 13 1 /ro 11511 UP5 2�a -99F GRUNDFOS B-`� BOILER PUMP 3 P - 21 14 1 /ro 115/1 UP5 2ro -99F GRUNDFOS SNOWMELT PUMP 2 P -S 2i 25 3/� 115/1 UP5 50 -80F EXISTING 50ILEIR FLUE CP,45 50 ILER RO LAYOQUT 1/2 " = 1' CODED NOTE: i RELOCATE EXISTING EXPANSION TANKS AND AIR SEPARATORS 50 THEY ARE NOT .45OVE BOILERS (TYP). t2 NEUTRALIZATION KIT (TYP.). (� 3 PV C COMfBU5TION AIR PIPE TO 5 01LER5 15 -1, 5-2 4 -3-3 O 4 114 PVC GOM5USTION AIR PIPE TO }OILER 5 -4 . 3 CPVC 501LER FLUE. PROVIDE MIN. P GLEARANCE TO COM5U6TI5LE5. RE: SCHEMATIC 'E' FOR CONTINUATION. 4 "0 CPVC 50 I LER FLUE. PROVI MIN. P CLEARAN TO C O MBUSTIBLES. RE- SCHEMATIC 'E' FOR CONTINUATION. BOILER VENT SHALL 5E PROPERLY 5UPP0RTED AND BE SLOPED A MIN. OF 1/4 PER FOOT SACK TO 501LER5. TO INSTALL FLUE /CA PIING WITH PROPER CLEARANCES AND 5LOPE, RELOCATION OF EXISTING SUPPLY FAN AND A550CIATED DUCTWORK MAY 5E REQUIRED. REMOVE EXISTING HOODS. REPAIR AS REQUIRED. 10 INSTALL NEW 24x12 GRILLE FOR PASSIVE MEGH. ROOM COOLING. INCLUDE MANUAL VOLUME DAMPER. UNIT 2 F-)EC< FLOOR COVER OPENING WITH BIRD SCREEN, BOILER FLUE SHALL EXTEND MIN. 2" BEYOND SURFACE OF SOFFIT. PROPOSED SOFFIT COVER OPENING WITH BIRD SCREEN. I' MIN, NOTES- 1. SEPARATION BETWEEN BOILER FLUE AND G.A. INTAKE MUST NOT EXCEED 15" FOR AN INDIVIDUAL BOILER. TERMINATE PER MANUFACTURER'S INSTALLATION INSTRUCTIONS. w nr � �► G.A. PIPES (TYP.) BOILER FLUES (TYP.) REUSE EXISTING AIR SCOOP WITH VENT. ? 11 r - 2 ^L -41 `U REUSE EXISTING— EXPANSION TANK. NOT E S: 1. ALL VALVES 4 APPURTENANCES ARE NOT SHOWN. PROVIDE AS REQUIRED FOR PROPER INSTALLATION AND MAINTENANCE, UNIT 1 50 IL.ER PIPING; &CHEMAT I C NO SCALE Al T lA CL05ELY SPACED TEES I' HOSE BIB TO EXISTING 8 -1 r� t/ f f 1 ROUTE 501LER CONDENSATE THROUGH A NEUTRALIZATION BASIN PRIOR TO DISCHARGE INTO FLOOR DRAIN WITH AIRGAP REUSE EXISTING AIR SCOOP WITH VENT. T l " -4 REUSE EXISTING— EXPANSION TANK. T CLOSELY SPACED A2 TEES HOSE BIB NOTES 1. ALL VALVES 4 APPURTENANCES ARE NOT SHOWN. PROVIDE AS REQUIRED FOR PROPER INSTALLATION AND MAINTENANCE. UN 1 1 2 Q0 I L. R P I P I I NSG ROUTE BOILER CONDENSATE THROUGH A NEUTRALIZATION 5CHEMAT (G E3A51N PRIOR TO D15C HARGE NO SCALE INTO FLOOR DRAIN WITH AIR U' r REUSE EXISTING AIR SCOOP WITH VENT. T1 /2 REUSE EXISTING — EXPANSION TANK. NOTES:. 1. ALL VALVES 4 APPURTENANCES ARE NOT SHOWN. PROVIDE AS REQUIRED FOR PROPER INSTALLATION AND MAINTENANCE. LIMIT 3 501LER PIPIN NO SCALE IM 1 ROUTE BOILER CONDENSATE THROUGH A NEUTRALIZATION BASIN PRIOR TO DISCHARGE INTO FLOOR DRAIN WITH AIRGAP REUSE EXISTING AIR CLOSELY SPACED SCOOP WITH VENT. A4 TEES r 0/2' 2" 1 11 HOSE BIB REUSE EXISTING — EXPANSION TANK. W 501 LER FLUE TE RMINATION S NO SCALE NOT 5: 1. ALL VALVES 4 APPURTENANCES ARE NOT 5 -4 SHOWN. PROVIDE AS REQUIRED FOR PROPER INSTALLATION AND MAINTENANCE. 1/2 fl &NOWMELT &Y6TEM ROUTE BOILER CONDENSATE THROUGH A NEUTRALIZATION SO E S, PIPING 6CHEMATIG BASIN PRIOR TO DISCHARGE NO SCALE INTO FLOOR DRAIN WITH AIRGAP CLOSELY SPACED A3 r TEES T 11/ 1 HOSE BIB w W Z z w 3 r z O N il! z w r f- O D A N Z A� A O }- IL ft ff LU to A v � a z R as U_ ( V ru lu a w� u1 z Uj W lu zw u1 a W = IaC t- w i1� Q 1L tK IL OZ� �v w IL �- wff - 3 H d � Z di Z O w (L > w w Cj0 W W CY Wz� zz� �W U UJ v