Harsco Industrial SC-1500 Installation & Owner'S Manual Download Page 91

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P-K SONIC

Gas Fired Boiler

Technical Service 1.877.728.5351

Revised: June 2, 2017
Released: June 2, 2017



HARSCO Industrial, Patterson-Kelley 2017

1004905978 P-K SONIC NURO Installation and

Owners Manual (Rev F Jun-2017).docx

Page 82

Summary of Contents for SC-1500

Page 1: ...7 www harscopk com Released June 2 2017 INSTALLATION OWNER S MANUAL INSTALLATION OWNER S MANUAL INSTALLATION OWNER S MANUAL INSTALLATION OWNER S MANUAL INSTALLATION OWNER S MANUAL INSTALLATION OWNER S...

Page 2: ...es proper ventilation and lighting with a structure sufficiently strong and rigid to support the weight of the boiler all piping and accessories NOTICE Each safety device must be maintained and checke...

Page 3: ...ly and completely understood contact Harsco Industrial Patterson Kelley Technical Service at 570 476 7261 or toll free at 877 728 5351 Hazard Warnings Electrical Hazards Shock Hazard Properly Lockout...

Page 4: ...Fire and Explosion Hazards Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other gas fired appliance Burn hazard Possible hot surfaces Do not touch gas...

Page 5: ...D 11 3 INSTALLATION 11 3 1 OVERVIEW 11 3 2 APPLIANCE CONNECTIONS 11 Appliance Connections SC 1500 SC 2000 12 Appliance Connections SC 3000 SC 4000 12 3 3 ELECTRICAL CONNECTIONS 13 Power Requirements S...

Page 6: ...USTMENTS 41 Gas Pressure Adjustment 41 Manual Control Mode for High and Low Fire Adjustment 42 Adjusting High Fire 43 Adjusting Low Fire 43 Checking Flame Signal 43 3 12 INITIAL NURO CONTROL SETUP AND...

Page 7: ...ltage TB2 Terminal Block 64 7 2 WIRING DIAGRAMS 65 SC 1500 SC 2000 Natural Gas or Propane Gas 65 SC 1500 SC 2000 Dual Fuel 67 Wiring Diagram Power Box SC 3000 and SC 4000 Only 70 SC 3000 SC 4000 Contr...

Page 8: ...PENDIX B BOILER ALTITUDE DERATE SCHEDULE 98 APPENDIX C WATER QUALITY STANDARDS QUALITY STANDARDS FOR HYDRONIC BOILERS IN MULTI METAL SYSTEMS 99 APPENDIX D BEST PRACTICES FOR NEW RETROFIT SYSTEMS 100 A...

Page 9: ...system This boiler may be fully operational but because of poor circulation improper control or other site related characteristics not deliver heat to the desired location Additional equipment such a...

Page 10: ...not fully and completely understand the content please contact Harsco Industrial Patterson Kelley Technical Service at 570 476 7261 or toll free at 877 728 5351 1 2 Common Abbreviations Abbreviation D...

Page 11: ...are damaged or fail due to weather exposure are not covered by warranty The boiler is heavy and requires additional technicians to support and move the unit s during installation Use extreme caution...

Page 12: ...160 PSIG Maximum Allowable Design Temperature 210 F Hi Limit Setpoint 200 F Maximum Setpoint 185 F Installation of the boiler must conform to all the requirements of all national state and local code...

Page 13: ...st be level and upright to function properly There are six 9 16 holes in the base which may be used for 3 8 or 1 2 anchor bolts Once the boiler is installed on the foundation and furnished with anchor...

Page 14: ...of 24 or as specified in the vent manufacturer s listed installation instructions The boiler must be installed in a space large in comparison to the boiler as described in the National Fuel Gas Code N...

Page 15: ...ethods or materials can result in serious injury or death due to fire or asphyxiation Before connecting a boiler to a venting system it must be determined whether the boiler is to be installed in a co...

Page 16: ...l is certified for Category II or IV operation NOTE For Category II installations ensure the flue venting system is designed to maintain a slightly negative exhaust pressure between 0 01 W C and 0 05...

Page 17: ...from different manufacturers within the same system As per ANSI Z21 13b 2012 CSA 4 9b 2012 The use of cellular core PVC CPVC and Radel as venting materials is prohibited The use of external insulation...

Page 18: ...pment Direct Vent Sealed Combustion Systems Clearances The vent terminal shall be located at least 12 in from any air opening into a building The bottom of the vent terminal shall be at least 12 in ab...

Page 19: ...ft 300 mm above opening 6 in 15 cm for appliances 10 000 Btuh 3 kW 12 in 30 cm for appliances 10 000 Btuh 3 kW and 100 000 Btuh 30 kW 36 in 91 cm for appliances 100 000 Btuh 30 kW F Clearance to a mec...

Page 20: ...Industrial Patterson Kelley s Water Quality Standards for Hydronic Boilers in Multi Metal Systems in Appendix C Water Quality Standards Quality Standards for Hydronic Boilers in Multi Metal Systems as...

Page 21: ...ghts Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx Page 12 Appliance Connections SC 1500 SC 2000 All connections must be in compliance with national state and l...

Page 22: ...l service to the boiler must be installed and grounded in accordance with local codes or in the absence of such requirements in the U S with National Electrical Codes ANSI NFPA No 70 latest edition or...

Page 23: ...ate of the SC 3000 or SC 4000 boiler to determine the required electrical service 208 240VAC three phase 60 hertz 440 480VAC three phase 60 hertz The incoming three phase power for the SC 3000 SC 4000...

Page 24: ...rson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx Page 15 Do not over tighten the hot lead terminal screws Maximum tightening torque 13...

Page 25: ...ect the neutral lead of the 208 240VAC single phase 60Hz electrical service to the TB2 3 terminal Be sure to check the nameplate on the boiler before connecting the electrical supply NOTICE A dedicate...

Page 26: ...itch on a motorized air damper This circuit is energized with 120VAC so the contacts on the end limit switch must be rated for minimum 120VAC The appliance ships with a factory installed jumper across...

Page 27: ...safety devices such as damper limit switches control valve limit switches emergency stop buttons and low water cutoff devices This circuit is energized with 120VAC so the contacts on any auxiliary saf...

Page 28: ...uts A TB2 19 TB2 20 B TB2 17 TB2 18 C TB2 15 TB2 16 D TB2 13 TB2 14 The normally open contacts on these relays have a maximum voltage rating of 240VAC and maximum current capacity of 1 2 Amp Master Al...

Page 29: ...URO controls but generally closure of the Enable Disable circuit provides a call for heat to the boiler Opening this circuit prevents the boiler from running 4 20mA Analog Input TB1 3 and TB1 4 can be...

Page 30: ...rcuit resumes normal operation This circuit is energized by the boiler with a 5VDC potential so the contacts on the day night timer must be rated for minimum 5VDC 4 20mA Analog Output TB1 15 and TB1 1...

Page 31: ...hall communicate directly with the outdoors or through a vertical or horizontal duct that communicates to the outdoors Minimum free area of the opening is 1 square inch for each 3 000 Btu Hr 700 mm2 k...

Page 32: ...in Paragraph A C When combustion air is supplied by natural airflow into a space containing the type of appliance described in Paragraph B the cross sectional area of the opening shall not be less th...

Page 33: ...talling a 1 x 1 or larger bird screen on the exterior termination Ensure that the screen does not become blocked with snow ice insects etc The combustion air supply must be free from dust lint etc The...

Page 34: ...ustrial Patterson Kelley recommends and most installation codes require the use of motorized combustion air dampers with end limit switches installed in the combustion air intake ductwork upstream of...

Page 35: ...urced from the appliance itself All end limit switches must be rated for 120VAC External power supplies are required for Relay A Relay B Relay C and Relay D Because power is provided from an external...

Page 36: ...ley cannot be responsible for the effects such adverse conditions may have on the operation of the appliances Vertical vents are allowed to be terminated with a variety of ends including plain straigh...

Page 37: ...e for vent design parameters P K SONIC Boiler Model Draft Stack Temperature CO2 Natural Gas CO2 Propane Gas SC 1500 SC 2000 SC 3000 SC 4000 Category II 0 01 to 0 05 W C 220 F gross 9 2 10 4 SC 1500 SC...

Page 38: ...der to control the exhaust back pressure within the appliance and upstream of this damper The 0 04 W C in the common flue will also help make sure the exhaust gases from an online appliance does not b...

Page 39: ...inlet collar is 11 875 OD Fasten the air inlet duct to the collar with sheet metal screws at 90 angles and seal with aluminum tape or sealant Intake Duct Materials and Sizes The air intake duct can be...

Page 40: ...r information on installing condensate drains in the exhaust vent Table of Required Stainless Steel Vent Adapters and Category II Motorized Dampers Boiler Size Nom vent Size Stainless Vent Adapter Ven...

Page 41: ...ken to ensure that any and all integral gasketing is properly assembled and creates a gas and water tight seal Systems that require silicone caulking for gasketing should only be installed with silico...

Page 42: ...te a summer exhaust fan Close fireplace dampers 4 Place the appliance being inspected in operation Follow the lighting instructions Adjust the thermostat so that the appliance will operate continuousl...

Page 43: ...essure exceeds 14 W C a suitable additional intermediate gas pressure regulator of the lock up type must be provided to reduce the pressure to less than 14 W C Refer to the table below or the applianc...

Page 44: ...pproximate energy content of propane gas is 2 500 BTU cu Ft Pipe Capacity for Propane Gas Nominal Iron Pipe Size Inches Internal Diameter Inches Equivalent Pipe Length Maximum Capacity in MBH Propane...

Page 45: ...lable from Harsco Industrial Patterson Kelley The bottom rear connection to the boiler is the INLET and must be used for the return from the system The top rear connection to the boiler is the OUTLET...

Page 46: ...he SC 3000 and SC 4000 boilers for convenience Low Water Cut Off The boiler is furnished with a probe type low water cut off no field piping is required If the water level in the boiler drops below th...

Page 47: ...ic means to prevent gravity circulation of the boiler water during the cooling cycle 3 8 Water Quality The P K SONIC boiler s heat exchanger is made of two different stainless steel alloys The heat ex...

Page 48: ...the boiler on by generating a heat request The method for this will depend on your boiler configuration 2 During the pre purge cycle before ignition smoothly close the downstream manual isolation valv...

Page 49: ...rature Limit Test The boiler is furnished with a manual reset high temperature limit which features a probe installed near the boiler s outlet in order to measure the outgoing supply water temperature...

Page 50: ...f control valve combined into one valve assembly The valve functions in series with the variable speed combustion blower to supply the correct gas air mixture for optimum firing performance and effici...

Page 51: ...ning in Manual Control Firing Rate use the UP and DOWN arrows or the slider to force the boiler to operate at low fire high fire or anywhere in between To prevent the appliance from cycling off premat...

Page 52: ...he boiler and observe proper operating parameters for the system Set boiler to the Manual Control Firing Rate mode as described above and decrease the firing rate to 1 Once the boiler has reached low...

Page 53: ...lkthrough of the complete control setup please refer to the NURO Boiler Controller Advanced User s Guide Part Number is 1004905979 which is helpful for more complex installations For more complex boil...

Page 54: ...Supply Temperature Inlet Return Temperature Exhaust Temperature Firing Rate etc Pressing the Info button in the lower left corner will load the Information screen For the setup wizard press the Setti...

Page 55: ...e NURO control also allows the user to back track at any time by pressing PREVIOUS in the bottom left corner of the screen The Setup Wizard allows the user to assign functionality to the user configur...

Page 56: ...boiler into Standby through the NURO touchscreen user interface Refer to the boiler s manual or the NURO Advanced Users Guide for more information Once the boiler is in standby follow the steps below...

Page 57: ...C1500GG SC2000GG Natural Gas Train and Propane Gas Train Locations SC1500GG SC2000GG The dual fuel SONIC SC1500GG SC2000GG feature a two 1 1 2 gas valves cocks on the rear surface as shown below 1 1 2...

Page 58: ...shows the location of the Propane Gas LP Natural Gas NG selector switch for the P K SONIC SC1500GG SC2000GG SC3000GG and SC4000GG models To access this selector switch open the front door and look to...

Page 59: ...Gas Train and Propane Gas Train Locations SC3000GG SC4000GG The dual fuel SONIC SC3000GG SC4000GG feature one 2 gas valve cock for Natural Gas and 1 1 2 gas valve cock for Propane Gas on the rear sur...

Page 60: ...shows the location of the Propane Gas LP Natural Gas NG selector switch for the P K SONIC SC1500GG SC2000GG SC3000GG and SC4000GG models To access this selector switch open the front door and look to...

Page 61: ...which can be opened by pinching the clasp and swinging open to the left Factory Tests Safe lighting and other performance criteria were met with the gas manifold and control assembly provided on this...

Page 62: ...necessary corrective action before proceeding 3 Set the desired high temperature limit and operating temperature The NURO controller will now begin the automatic firing sequence Normal Shut Down Proce...

Page 63: ...dgeable installer or service agency that has been trained on the Harsco Industrial Patterson Kelley appliance Lockout Tagout procedure must be employed when servicing this unit Failure to do so could...

Page 64: ...f a condensate neutralization kit is present open the lid and inspect the limestone rocks If they are absent or have been significantly worn away replace them with new limestone rocks Use high calcium...

Page 65: ...s necessary according to the Combustion Setup and Adjustment combustion settings table Refer to 3 11 2 It is recommended that a copy of this report is filed for future reference 12 Perform a leak test...

Page 66: ...ternal combustion chamber with pressurized water for several minutes Spray as much of the internal surface area as possible 15 Some SONIC boiler models feature two small washout ports between the uppe...

Page 67: ...he tightness of all bolted joints 6 4 After Repairs or Maintenance Following any major repairs or preventative maintenance follow the steps below before returning the boiler to service 1 Follow 3 9 an...

Page 68: ...n 4 seconds after the gas valves open elapsed time 7 seconds 6 After a successful ignition the fan is driven to low fire and the CH LOW FIRE HOLD TIME timer is started Once the LOW FIRE HOLD TIME time...

Page 69: ...ressure switch opens when there is or has been insufficient gas pressure available for proper operation of the boiler If an external gas supply shut off valve is closed for any reason a low gas condit...

Page 70: ...ion Check that the ignition electrode ignition wire and gas valve are functioning properly Check that the direct spark ignition is visible through the flame observation port during the trial for ignit...

Page 71: ...available by calling or visit the Harsco Industrial Patterson Kelley website www harscopk com When ordering replacement parts please have the model number and serial number of your boiler available T...

Page 72: ...OG OUTPUT 4 20mA Analog Output Tracks Boiler Firing Rate 100 Firing Rate 20mA 1 Firing Rate 4mA 15 4 20mA ANALOG OUTPUT 14 NIGHT SETBACK Contact Closure Enables Night Setback Operation Open Circuit Di...

Page 73: ...oltage 1 2Amp Max Current 20 17 RELAY B 19 16 RELAY C User Configurable Normally Open Dry Contact C 240VAC Max Voltage 1 2Amp Max Current 18 15 RELAY C 17 14 RELAY D User Configurable Normally Open Dr...

Page 74: ...5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx Page 65 7 2 Wiri...

Page 75: ...ler Technical Service 1 877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F...

Page 76: ...Service 1 877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 doc...

Page 77: ...ler Technical Service 1 877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F...

Page 78: ...ler Technical Service 1 877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F...

Page 79: ...77 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx Page 70 Wi...

Page 80: ...00 Control Transformer Diagrams SC 3000 SC 4000 208 VAC Three Phase 60 Hertz SC 3000 SC 4000 220 240 VAC Three Phase 60 Hertz Before making any electrical connections to the boiler verify that the con...

Page 81: ...877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx Page 72 S...

Page 82: ...877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx Page 73 S...

Page 83: ...ler Technical Service 1 877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F...

Page 84: ...ervice 1 877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx...

Page 85: ...ler Technical Service 1 877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F...

Page 86: ...ler Technical Service 1 877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F...

Page 87: ...877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx Page 78 S...

Page 88: ...ler Technical Service 1 877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F...

Page 89: ...ervice 1 877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx...

Page 90: ...ler Technical Service 1 877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F...

Page 91: ...ler Technical Service 1 877 728 5351 Revised June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F...

Page 92: ...ved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx Page 83 7 3 Boiler Parts Identification SC 1500 SC 2000 Main Boiler Assembly SC 1500 SC 2000 Mark Description Mark Desc...

Page 93: ...Manual Rev F Jun 2017 docx Page 84 NURO Control Panel SC 1500 SC 2000 Mark Description Mark Description 1 Push to Test LWCO Button 7 NURO Touchscreen Assembly 2 Manual Reset Hi Temp Limit 8 Clear Pla...

Page 94: ...xchanger Assembly SC 1500 SC 2000 Mark Description Mark Description 1 Flow Switch 9 Condensate Trap 2 Outlet Coupling 3 Victaulic 10 High Exhaust Pressure Switch Port 3 Relief Valve Port 11 Heat Excha...

Page 95: ...wer Assembly SC 1500 SC 2000 Mark Description Mark Description 1 Stainless Steel Mesh Burner 9 Blower Transition Piece 2 External Upstream Gas Cock 10 Combustion Blower Fan 3 Gas Piping Supports 11 Bu...

Page 96: ...Blower SC 1500 SC 2000 Mark Description Mark Description 1 Stainless Steel Mesh Burner 9 Blower Transition Piece 2 External Upstream Gas Cock 10 Combustion Blower Fan 3 Gas Piping Supports 11 Burner...

Page 97: ...05978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx Page 88 7 4 Boiler Parts Identification SC 3000 SC 4000 Main Boiler Assembly SC 3000 SC 4000 Mark Description Mark Description 1...

Page 98: ...Manual Rev F Jun 2017 docx Page 89 NURO Control Panel SC 3000 SC 4000 Mark Description Mark Description 1 Push to Test LWCO Button 7 NURO Touchscreen Assembly 2 Manual Reset Hi Temp Limit 8 Clear Pla...

Page 99: ...2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx Page 90 Main Power Box SC 3000 SC 4000 Mark Description Mark Description 1 20A Three Phase Breake...

Page 100: ...escription Mark Description 1 Flow Switch 10 High Exhaust Pressure Switch Port 2 Outlet Coupling 4 Victaulic 11 Section VIII Economizer 3 ASME Section VIII Relief Valve 150 12 Interconnecting Elbows 4...

Page 101: ...Train Burner Blower Assembly SC 3000 SC 4000 Mark Description Mark Description 1 Stainless Steel Mesh Burner 8 High Gas Pressure Switch 2 External Upstream Gas Cock 9 Blower Transition Piece 3 Gas Pi...

Page 102: ...Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx Page 93 Propane Gas Train SC 3000 SC 4000 Mark Description Mark Description 1 External Upstream Gas Cock 5 Intern...

Page 103: ...nated facility for repairs of any products or party alleged defective shall in all events be at Buyer s sole risk and cost This warranty applies only if the original installer and Seller Attention Har...

Page 104: ...rty resulting in whole or in part from any modification or alteration Buyer makes to any product sold hereunder and N Design defects where Seller has complied with Buyer s design specifications III PR...

Page 105: ..._ Volts or uA Efficiency _____ _____ Comb Air Pres intake _____ w c _____ w c Lockup Static Gas pressure Gas pressure drop ignition _____ 2 Water Inlet temperature _____ F 3 Water Outlet temperature _...

Page 106: ...sed June 2 2017 Released June 2 2017 HARSCO Industrial Patterson Kelley 2017 All Rights Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx Page 97 Appendix A Mainten...

Page 107: ...98 Appendix B Boiler Altitude Derate Schedule For installations over 2 000 ft elevations a derate schedule is applied The boiler input rating must be reduced by 4 per 1 000 ft which is illustrated in...

Page 108: ...should not exceed more than 10 of the system volume per year and meter readings should be recorded at least monthly to ensure system losses are minimized and corrective actions shall be taken when nee...

Page 109: ...onitor the amount of fresh water introduced into the system piping It can also be used to establish a rough estimate of the total system volume during the initial fill In general the annual amount of...

Page 110: ...iler systems is the presence of suspended and dissolved solids These are typically a result of deteriorating piping fittings or legacy boiler s heat exchangers Patterson Kelley recommends installing a...

Page 111: ...which describe the power supply requirements Provide an appropriate power feed to the boiler with overcurrent protection Boiler Model Power Supply Requirements SC 1500 SC 2000 240V 208 240VAC single...

Page 112: ...ghts Reserved 1004905978 P K SONIC NURO Installation and Owners Manual Rev F Jun 2017 docx Page 103 Appliance Connections SC 1500 SC 2000 All connections must be in compliance with national state and...

Page 113: ...tion is useful to help size an appropriate circulation pump Keep in mind this pressure drop represents the boiler only additional consideration is needed for any connecting piping valves strainers cou...

Page 114: ...opylene Glycol mixtures Model SC 1500 SC 2000 SC 3000 SC 4000 Mixture Flow Pressure Flow Pressure Flow Pressure Flow Pressure 0 145 GPM 20 5 ft 192 GPM 35 ft 285 GPM 17 5 ft 384 GPM 32 ft 10 147 GPM 2...

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