Patterson-Kelley P-K STORM ST-5000 Installation & Owner's Manual
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Patterson-Kelley P-K STORM ST-5000 Installation & Owner's Manual

Gas fired boiler w/ nuro™ control system natural gas
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P-K STORM
GAS FIRED BOILER
™
w/ NURO
CONTROL SYSTEM
™
Natural Gas
ST-2500, ST-3000, ST-3500, ST-4000,
ST-5000, & ST-6000
Part #
2691000273
C.S.A Design-Certified
Complies with ANSI Z21.13/CSA 4.9
Gas-Fired Low Pressure Steam and Hot Water Boilers
ASME Code, Section IV
C.S.A Design-Certified
Complies with ANSI Z21.13/CSA 4.9
Gas-Fired Low Pressure Steam and Hot Water Boilers
WARNING: If the information in these instructions is not followed
exactly, a fire or explosion may result causing property damage,
personal injury or death.
- Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS
 Do not try to light any appliance.
 Do not touch any electrical switch; do not use any phone in
your building.
 Immediately call your gas supplier from a neighbor's phone.
Follow the gas supplier's instructions.
 If you cannot reach your gas supplier, call the fire department.
- Installation and service must be performed by a qualified installer,
service agency or the gas supplier.
Model Number:
Serial Number:
Start-Up Date:
Patterson-Kelley
155 Burson Street
East Stroudsburg, PA 18301
Telephone: 570.476.7261
Toll Free: 877.728.5351
Fax: 570.476.724
www.pattersonkelley.com
The information in this manual is the property of Patterson-Kelley. The descriptions and specifications contained in this manual were in effect at the time
this manual was approved for publication. While Patterson-Kelley will continue to support earlier model boilers to within a reasonable time limit, we reserve
the right to discontinue models and replacement parts at any time or change specifications or design without notice and without incurring any obligation.
Released: December 8, 2021
Patterson-Kelley 2021: All Rights Reserved.
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Summary of Contents for Patterson-Kelley P-K STORM ST-5000

  • Page 1 Patterson-Kelley 2021: All Rights Reserved. The information in this manual is the property of Patterson-Kelley. The descriptions and specifications contained in this manual were in effect at the time this manual was approved for publication. While Patterson-Kelley will continue to support earlier model boilers to within a reasonable time limit, we reserve...
  • Page 2 P-K STORM Gas Fired Boiler Technical Service 1.877.728.5351 Safety General OTICE Each safety device must be ™ P-K STORM Boilers ST-2500, ST-3000, ST-3500, ST-4000, ST- maintained and checked per the 5000, and ST-6000 recommended schedule. Refer to ™ All P-K STORM Gas-Fired Boilers must be: Maintenance.
  • Page 3 If any of the provisions of this manual are not fully and completely understood, contact Patterson-Kelley Technical Service at 570.476.7261 or toll free at 877.728.5351. Hazard Warnings...
  • Page 4 CPVC, or other corrosion resistant piping for drainage. Collection and disposal must be in accordance with all applicable regulations. A condensate neutralization kit is available. Please contact your local Patterson-Kelley representative for more information. Burn, Fire and Explosion Hazards Burn, fire, and explosion hazards! Installation must be in strict conformance to all applicable codes and standards including NFPA 54, ANSI Z223.1 and CAN/CSA B.149.
  • Page 5 P-K STORM Gas Fired Boiler Technical Service 1.877.728.5351 Overfire Hazard! Possible fire and explosion from excess gas pressure. Make sure that gas inlet pressure does not exceed 14 inches W.C. Overfire Hazard! Possible fire and explosion. Possible malfunction of regulators and/or gas safety shut off/control valves.

  • Page 6: Table Of Contents

    Intake Duct Materials and Sizes ..................38 Category II Installations ....................38 Category IV Installations ....................39 Stainless Steel Venting ..................... 39 CPVC Vent System Installation..................39  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...
  • Page 7 Annually or 2500 Run Hours (Whichever Comes First) ............. 64 ................... 68 LEANING THE OMBUSTION HAMBER  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...
  • Page 8 APPENDIX A – MAINTENANCE LOG ....................114 APPENDIX B – BOILER ALTITUDE DERATE SCHEDULE ............. 115 APPENDIX C – WATER QUALITY STANDARDS QUALITY STANDARDS FOR HYDRONIC BOILERS IN MULTI-METAL SYSTEMS ................... 116  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.
  • Page 9 UPPLY ......................119 LECTRICAL OWER UPPLY .......................... 119 XHAUST ENTING ......................122 ROPYLENE LYCOL  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page viii...

  • Page 10: Introduction

    Failure to do so could result in system. Patterson-Kelley cannot be responsible for the personal injury or death. design or operation of such systems and a qualified engineer or contractor must be consulted.
  • Page 11 Technical Service 1.877.728.5351 PRECAUTIONS ASSOCIATED WITH HANDLING REFRACTORY LINING MATERIAL • This Patterson-Kelley product contains a Combustion Area lined with REFRACTORY CERAMIC FIBERS (RCFs) similar to many other devices produced in this industry. • RCFs have been identified by the International Agency for Research on Cancer (IARC) as possibly being carcinogenic to Humans.

  • Page 12: Purpose Of This Document

    If you have any questions on the information contained within, or do not fully and completely understand the content, please contact Patterson-Kelley Technical Service at 570.476.7261 or toll free at 877.728.5351.

  • Page 13: Site Preparation

    électrique de la pompe. Fermer plutôt le robinet d’admission de gaz à l’extérieur de l’appareil. service access, increasing the possibility of injury.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...

  • Page 14: Compliance With Codes

    (b) field installed gas cocks must be “T” handle type, (c) piping of condensate shall conform to the State Plumbing Code, and (d) refer to the Massachusetts Supplement for further details.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 15: Location Setup

    NOTE: Do NOT allow any rigging equipment to interfere with unit components as this can damage the unit  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.
  • Page 16 A variety of lifting equipment may be required to properly lift the unit using the channels. NOTE: Do NOT allow any lifting equipment to contact unit components as this can damage the unit  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 17: Foundation

    Anchor/Lag Bolts (REAR) NOTICE! The appliance may be installed on a combustible floor; however, the appliance must NEVER be installed on carpeting.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...

  • Page 18: Clearances

    ** 18” required on either the left or right side. *** 36” required for ST-5000 and ST-6000 Note: Failure to provide recommended service clearances may make it difficult to perform service on the boiler(s).  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 19: Inlet Air And Exhaust Venting Considerations

    Faulty vent installation can allow toxic fumes to be released into living areas. This may cause property damage, injury, or death.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...

  • Page 20: Category Ii/Iv Flue Gas Exhaust Vent Planning

    Vent installations shall be in accordance with NFPA 54/ANSI Z223.1, the National Fuel Gas Code, or CAN/ CSA-B149.1, the Natural Gas and Propane Installation Code, or applicable provisions of the local building codes.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.
  • Page 21 Category IV ST-5000 & ST-6000 (Exhaust Only) 220 °F (gross) 8.75% +0.01” to +1.0” W.C.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 10...

  • Page 22: Venting Materials For Flue/Exhaust Systems

    Vent from Heatfab or FasNSeal from DuraVent. When used, the same manufacturer's material must be used throughout the system. It is not permissible to use material from different manufacturers within the same system  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.
  • Page 23 NOTE 2: When this material is used for venting, it must be listed to either UL- 1738 or ULC-S636 (depending on the local requirements). Consult the local boiler codes for more information.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 24: Required Clearances

    Improper interconnection of venting systems may result in leakage of flue gases into occupied spaces.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...
  • Page 25 3.5. The appliance connector should incorporate provisions to drain condensate formed in the vent system. The connector should include an appropriate drain section (not provided).  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 26: Gas Piping Considerations

    The P-K STORM proper water conditions to remain efficient and function properly. For more information, refer to 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 this applies to the warranty of your heat exchanger.

  • Page 27: Appliance Connections (St-2500 & St-3000)

    Gas Fired Boiler Technical Service 1.877.728.5351 Appliance Connections (ST-2500 & ST-3000) All connections must be in compliance with national, state, and local code requirements.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...

  • Page 28: Appliance Connections (St-3500 & St-4000)

    Gas Fired Boiler Technical Service 1.877.728.5351 Appliance Connections (ST-3500 & ST-4000) All connections must be in compliance with national, state, and local code requirements.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...

  • Page 29: Appliance Connections (St-5000 & St-6000)

    Gas Fired Boiler Technical Service 1.877.728.5351 Appliance Connections (ST-5000 & ST-6000) All connections must be in compliance with national, state, and local code requirements.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...

  • Page 30: Electrical Connections

    208 VAC main voltage. Refer to Section 7.2.4 for proper wiring and configuration of the internal control transformer.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...
  • Page 31 Do not over-tighten the hot lead terminal screws. Maximum tightening torque = 13 in-lbs! NOTE: The hot lead terminals can accommodate maximum 10AWG wire. The ground terminal can accommodate maximum 8AWG wire.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 32: High Voltage (Tb2) Terminal Block

    120VAC. The appliance ships with a factory-installed jumper across Start Interlock #1 and Start Interlock #2 terminals. Remove the jumper(s) if using any auxiliary safety devices.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.
  • Page 33 NURO control. The normally-open contacts on this relay have a maximum voltage rating of 240VAC and maximum current capacity of 1/2 Amp.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 34: Low Voltage (Tb1) Terminal Block

    This analog signal can be used to change the boiler’s operating setpoint/firing rate. Spare Analog Input – TB1-5 and TB1-6 are reserved for future use.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.
  • Page 35 The wireless receiver should be installed at or near the boiler, and the wireless temperature sensor should be installed on the North face of the building and shielded from direct sunlight exposure.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 36: Combustion Air

    ST-5000 5000 10000 1668 1250 1250 2500 ST-6000 6000 12000 2002 1375 1375 3000  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 25...

  • Page 37: Air Inlet Requirements - Canada

    13.4 8,645 ST-4000 4,000,000 107,742 16.7 10,774 ST-5000 4,999,999 129,032 16.7 10,774 ST-6000 6,000,000  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 26...

  • Page 38: P-K Storm ™ Combustion Air Requirements

    For example, joints in PVC or CPVC piping must be cemented. For galvanized duct, wrap each joint and seam with adhesive aluminum tape or other sealant. Patterson-Kelley recommends installing 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.

  • Page 39: Motorized Combustion Air Dampers

     ST-5000 & ST-6000: +0.01” W.C. and +1.0” W.C. (Exhaust Only) Motorized Combustion Air Dampers 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 each appliance.
  • Page 40  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...

  • Page 41: Flue Gas / Exhaust Venting

    Vertical vents are allowed to be terminated with a variety of ends, including plain straight pipe, elbow, or vent tee. Horizontal vents must be terminated with an elbow or vent tee. Similarly, a bird screen with 1” x 1” openings is recommended for termination. Patterson-Kelley does not recommend using a vent rain cap of any type.
  • Page 42 Category IV ST-5000 & ST-6000 (Exhaust Only) 220 °F (gross) 8.75% +0.01” to +1.0” W.C.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 31...

  • Page 43: Vent Termination

    (2) feet above the highest part of any structure within ten (10) feet of the vent. This is illustrated in the following diagram. Additionally, the boiler vent shall terminate at least 3 ft. above a forced air inlet located within 10 ft.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 44: Venting For Multiple Boilers

    In addition, Patterson-Kelley also recommends the use of motorized combustion air dampers in the combustion air intake ductwork of each individual appliance. When an appliance is offline, its combustion air damper will remain closed which will also help prevent the backflow of flue gases from online appliances.

  • Page 45: Sealed Combustion/Direct Vent Systems

    This boiler may be installed with sidewall vent using room air. Exhaust Vent 36” Minimum 12” Minimum Air Inlet  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 34...
  • Page 46 ST-2500 – ST-4000: +0.01” W.C. and +0.4” W.C. (Exhaust Only)  ST-5000: +0.01” W.C. and +0.5” W.C. (Direct Vent / Sealed Combustion)  ST-5000: +0.01” W.C. and +1.0” W.C. (Exhaust Only)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...
  • Page 47  ST-5000 & ST-6000: +0.01” W.C. and +0.5” W.C. (Direct Vent / Sealed Combustion)  ST-5000 & ST-6000: +0.01” W.C. and +1.0” W.C. (Exhaust Only)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...
  • Page 48 When terminating on the same vertical axis, the air intake must use a 90° termination and the exhaust must have a 45° termination. Must be a minimum of 36”  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 49: Inlet Duct Connection To Boiler

    Category IV vent installations. 120VAC motorized dampers with end limit switches are available for purchase from Patterson-Kelley. Other damper motor voltages are acceptable, provided they do not exceed 120VAC. The Air Damper Interlock circuit for the end limit switch is always 120VAC which is sourced from the boiler itself.

  • Page 50: Category Iv Installations

    ST2500-ST3000 910510CPVC 12” ST3500-ST4000 912512CPVC 14” ST5000-ST6000 912512CPVC* *Requires 14” to 12” reducer 2691000373  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 39...

  • Page 51: Polypropelene Vent System Installation

    ST2500-ST3000 ISSA1010 12” ST3500-ST4000 ISSA1212 14” ST5000-ST6000 ISSA1212* *Requires 14” to 12” reducer 2691000373  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 40...

  • Page 52: Condensate Drain, Trap & Disposal

    4. The condensate is slightly acidic (3-5 PH), however, local codes may require it to be neutralized prior to entering the drainage system. An optional, field installed, Condensate Neutralization System is available from Patterson-Kelley. 5. All piping from the condensate trap to the suitable drain must remain below the highest point (top of the condensate outlet pipe) on the properly attached condensate assembly.
  • Page 53 P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 42...

  • Page 54: Removing An Existing Boiler

    11 of the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CAN/CSA B149.1 Natural Gas and Propane Installation Code.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 55: Piping

    10 equivalent feet of length. Never connect vent piping that is smaller in size than the gas regulator’s vent port connection. This unit comes with a sediment trap (drip leg) already installed. Patterson-Kelley recommends a union connection ahead of the primary manual shutoff valve on the boiler. A gas piping schematic is shown above.

  • Page 56: Natural Gas Piping

    If using soap and water or a similar leak test method, make sure to clean off all moisture from the gas pipe fittings prior to placing the appliance into service.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 57: Boiler Water Piping

    EPDM Victaulic seals. prevent freezing in un-insulated spaces. Isolating valves must be installed in both the inlet and outlet water connections.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...
  • Page 58 All water connections should be in compliance with national, state, and local code requirements. Adapters from Victaulic to NPT are available from 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 and must be connected as the supply to the system.

  • Page 59: Boiler Water Piping (For Installer)

    The condensate is acidic (pH between 3.0 and 5.0) and may be corrosive to some building drain systems. A condensate neutralization system may be required and is available from Patterson-Kelley. If the condensate drainage system is exposed to freezing temperatures, it must be field heat traced. The boiler could generate up to one gallon of condensate per 100,000 BTU input.

  • Page 60: Water Quality

    “water quality”. For treatment can be found on our website www.pattersonkelley.com information, please refer to Patterson-Kelley Multi-Metal Systems Water Quality Standards as it Appendix C – Water Quality Standards Quality Standards for Hydronic Boilers in appears in Multi-Metal Systems as this applies to the warranty of your heat exchanger.

  • Page 61: Pre-Start Checklist

    The low water cut-out circuit board is located inside the boiler’s front door, toward the bottom left of the control panel and is identified with a label.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 62: Flow Switch Test

    NURO control. These manual reset high temperature limits are wired in series so if only one switch trips, it would result in the unit locking out.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 63: Gas Pressure Switch Tests

    10011: “High Gas Limit” will remain on the NURO display until the boiler is manually reset by pressing “Reset Control”. NOTE Make sure to re-open the downstream gas cock (inside the boiler) after a successful test.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 64: Fuel/Air Adjustments

    Natural Gas 7" W.C. 8.5 - 8.9 6.0 - 5.3 6.0 - 5.3 8.5 - 8.9  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...
  • Page 65 NOTICE! For high altitude adjustments (greater than 2,000 feet above sea level), see Appendix B – Boiler Altitude Derate Schedule at the end of this manual.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 66: Adjusting High Fire

    When the boiler is in standby, prepurge, or postpurge the flame signal should read 0V. During main flame, a strong flame signal should read between 8-30V.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 67: Pilot Burner Adjustments (St-6000 Only)

    (units = V) as measured by the ignition electrode/ionization probe. When the boiler is in standby, prepurge, or postpurge the flame signal should read 0V. During pilot flame operation, a strong flame signal should read between 1.5V and 2.5V  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 68: Initial Nuro Control Setup And Adjustment

    When the boiler or water heater is powered on, the NURO touchscreen will display an initial Startup Screen then the Local Representative screen. This shows the name, address and phone number of the local Patterson Kelley representative.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 69: Home Screen

    NOTE For more information on any value, please refer to the NURO Boiler Controller: Advanced User’s Guide, Part Number is 1004905979.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...

  • Page 70: Setup Wizard

    208-240 Three Less than 20 ST-6000 6,000,000 5825 5,820,000 440-480 Three Less than 20  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 59...

  • Page 71: Operations

    Safe lighting and other performance criteria were met with the gas manifold and control assembly provided on this boiler when the boiler underwent factory tests specified in ANSI Z21.13/CSA 4.9, latest edition. (See "Factory Firetest" label on the rear surface of the boiler).  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 72: Normal Lighting And Shut-Down Procedures

    See the image to the right for the locations of the Natural Gas valve.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 73: Maintenance

    REFRACTORY LINING MATERIAL main gas line and ensure all connections are tight. Use a leak • This Patterson-Kelley product contains a Combustion detector to check for leaks before Area lined with REFRACTORY CERAMIC FIBERS and after servicing any (RCFs) similar to many other devices produced in this component of the gas piping.

  • Page 74: Daily

    Combustion Setup and Adjustment combustion settings table in 3.11.2. If an adjustment to the combustion is necessary, call a qualified and knowledgeable installer or service agency that has been trained on the Patterson-Kelley appliance. Monthly 1.

  • Page 75: Annually Or 2500 Run Hours (Whichever Comes First)

    (570) 476-7247. 1. Inspect and clean the inlet screen (if applicable) of any accumulated dust or lint. If using an air filter, inspect and replace (if necessary). Patterson-Kelley suggests replacing air filters at least once per year. For the following points 2 through 4, refer to 5.2.
  • Page 76 (flame rod) if the spacing between the rods (after replacement) and the burner does not match factory recommendations please consult Patterson-Kelley for correct actions. Refer to the following images for proper factory spacing – dimensions are in millimeters...
  • Page 77 7. Examine the venting system. Refer to the vent manufacturer's instructions for requirements in addition to those listed below.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.
  • Page 78 It is recommended that a copy of this report is filed for future reference. 10. Perform a leak test of the gas valve in accordance with the gas valve manufacturer’s instructions.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 79: Cleaning The Combustion Chamber

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 5.2 Cleaning the Combustion Chamber Patterson-Kelley recommends cleaning the combustion chamber once annually using the following procedure: 1. Lockout/Tagout gas supply to the boiler. 2. Lockout/Tagout electrical power to the boiler. 3. Disconnect the condensate piping and install a temporary drain hose into the condensate trap/drain.
  • Page 80 9. Swing open the burner door/heat exchanger door to provide access to the inside of the heat exchanger. The burner does not need to be removed. Patterson-Kelley does not recommend removing the burner, though it may be removed to provide better access for cleaning the exchanger.
  • Page 81 Spray as much of the internal surface area as possible. Be very careful when cleaning to avoid spraying any of the electrical or control components. Water may cause a short circuit and damage circuitry.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.
  • Page 82 After several minutes of washing, turn off the hose and allow all the wash water to drain from the boiler. Patterson-Kelley recommends rinsing until the water draining from the condensate runs clear. Remove the temporary drain hose and reconnect the condensate assembly.

  • Page 83: After Repairs Or Maintenance

    Technical Service 1.877.728.5351 PRECAUTIONS ASSOCIATED WITH HANDLING REFRACTORY LINING MATERIAL • This Patterson-Kelley product contains a Combustion Area lined with REFRACTORY CERAMIC FIBERS (RCFs) similar to many other devices produced in this industry. • RCFs have been identified by the International Agency for Research on Cancer (IARC) as possibly being carcinogenic to Humans.

  • Page 84: Sequence Of Operations

    “POST PURGE TIME” timer has expired. 9. When the outlet water temperature is reduced by the load on the system, a heat request is generated. The operating sequence will recycle to Step 3.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 85: Troubleshooting

    Next, check for obstructions of the combustion air intake and/or exhaust (flue) piping. Next, check the hoses leading to the air switches are not kinked or obstructed. An error related to the air switch does not necessarily mean that the air switch is defective.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 86: Flame Failure

    If no blockages are found, it may be necessary to replace either the high exhaust back pressure switch or the Condensate Blockage System.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 87: Parts/Technical Support

    Technical Service 1.877.728.5351 6 Parts/Technical Support Spare parts and replacement parts can be ordered from Use of Non-Factory Authorized Patterson-Kelley by calling toll free (877) 728-5351. Reach replacement parts are not us by fax at (570) 476-7247. recommended for this equipment.

  • Page 88: Terminal Block Assignments

    4-20mA ANALOG INPUT [+] ENABLE / DISABLE Contact Closure Enables Comfort Heat Operation ENABLE / DISABLE Open Circuit Disables Comfort Heat Operation  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...

  • Page 89: Terminal Block Assignments - High Voltage (Tb2) Terminal Block

    START INTERLOCK #2 External Interlock Circuit #2 (In Series w/ #1) START INTERLOCK #2 NOTE: On the ST-6000 there is NO Start Interlock #2.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...

  • Page 90: Wiring Diagrams

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 6.2 Wiring Diagrams ST-2500-ST-4000 Natural Gas 208-240 Volt  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...
  • Page 91 P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 80...

  • Page 92: St-5000 Natural Gas 208-240 Volt

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 ST-5000 Natural Gas 208-240 Volt  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 81...
  • Page 93 P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 82...

  • Page 94: St-2500-St-4000 Natural Gas 480 Volt

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 ST-2500-ST-4000 Natural Gas 480 Volt  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 83...
  • Page 95 P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 84...

  • Page 96: St-5000 Natural Gas 480 Volt

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 ST-5000 Natural Gas 480 Volt  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 85...
  • Page 97 P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 86...

  • Page 98: St-6000 Natural Gas 240 Volt

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 ST-6000 Natural Gas 240 Volt  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 87...
  • Page 99 P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 88...

  • Page 100: St-6000 Natural Gas 480 Volt

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 ST-6000 Natural Gas 480 Volt  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 89...
  • Page 101 P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 90...

  • Page 102: Control Transformer Diagrams

    Gas Fired Boiler Technical Service 1.877.728.5351 Control Transformer Diagrams 208 VAC, Three Phase, 60 Hz (ST-2500-ST-4000) 220-240 VAC, Three Phase, 60 Hz (ST-2500-ST-4000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...
  • Page 103 Gas Fired Boiler Technical Service 1.877.728.5351 ST-5000 & ST-6000 220-240 VAC, Three Phase, 60 Hz ST-2500-ST-4000 440-480 VAC, Three Phase, 60 Hz  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...
  • Page 104 220-240V, three phase, 60Hz  440-480V, three phase, 60Hz Improper configuration of the control transformer could result in serious injury or death.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...

  • Page 105: Boiler Parts Identification

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 6.3 Boiler Parts Identification Main Boiler Assembly (ST-2500 & ST-3000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx...

  • Page 106: Main Boiler Assembly (St-3500 & St-4000)

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Main Boiler Assembly (ST-3500 & ST-4000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 95...

  • Page 107: Main Boiler Assembly (St-5000)

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Main Boiler Assembly (ST-5000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 96...

  • Page 108: Main Boiler Assembly (St-6000)

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Main Boiler Assembly (ST-6000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 97...

  • Page 109: Control Panel (St-2500-St-4000)

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Control Panel (ST-2500-ST-4000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 98...

  • Page 110: Control Panel (St-5000)

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Control Panel (ST-5000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 99...

  • Page 111: Control Panel (St-6000)

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Control Panel (ST-6000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 100...

  • Page 112: Heat Exchanger Assembly St-2500 & St-3000

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Heat Exchanger Assembly ST-2500 & ST-3000  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 101...

  • Page 113: Heat Exchanger Assembly St-3500 & St-4000

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Heat Exchanger Assembly ST-3500 & ST-4000  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 102...

  • Page 114: Heat Exchanger Assembly St-5000 & St-6000

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Heat Exchanger Assembly ST-5000 & ST-6000  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 103...

  • Page 115: Natural Gas Train (St-2500-St-4000)

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Natural Gas Train (ST-2500-ST-4000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 104...

  • Page 116: Natural Gas Train (St-5000)

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Natural Gas Train (ST-5000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 105...

  • Page 117: Natural Gas Train (St-6000)

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Natural Gas Train (ST-6000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 106...

  • Page 118: Burner/Blower Assembly 240V (St-2500-St-4000)

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Burner/Blower Assembly 240V (ST-2500-ST-4000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 107...

  • Page 119: Burner/Blower Assembly 480V (St-2500-St-4000)

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Burner/Blower Assembly 480V (ST-2500-ST-4000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 108...

  • Page 120: Burner/Blower Assembly 240V (St-5000 & St-6000)

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Burner/Blower Assembly 240V (ST-5000 & ST-6000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 109...

  • Page 121: Burner/Blower Assembly 480V (St-5000 & St-6000)

    P-K Storm Gas Fired Boiler Technical Service 1.877.728.5351 Burner/Blower Assembly 480V (ST-5000 & ST-6000)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 110...

  • Page 122: K Storm Specific Limited Warranty

    Last Updated 12/12/2016 Subject to the terms and conditions herein and the Terms and Conditions of Sale (as defined herein), Patterson-Kelley (“Seller”) warrants to the purchaser of the product (“Buyer”) that the heat exchanger and burner are free of defects in material and workmanship, when...
  • Page 123 No sales representative, agent, or employee of Seller or any reseller in the chain of sale of the product is authorized to make any modification, extension, or addition to this Specific Limited Warranty, unless agreed to in writing by Seller.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 124: Boiler Fire-Test Report

    (Print Name) A copy must be returned within 30 days of startup to Patterson-Kelley A copy must be returned within 30 days of startup to Harsco Industrial Patterson-Kelley Patterson-Kelley • 155 Burson Street • E. Stroudsburg, PA 18301 Harsco Industrial Patterson-Kelley • 155 Burson Street • E. Stroudsburg, PA 18301 P) 570-476-7261 F) 570-476-7247 pkchtsupport@spx.com...

  • Page 125: Appendix A - Maintenance Log

    Appendix A – Maintenance Log Hi Fire / Stack Date Action Low Fire Temp  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 114...

  • Page 126: Appendix B - Boiler Altitude Derate Schedule

    Although the appliance’s capacity is reduced due to the lower air density, the combustion tuning should follow the standard combustion guidelines of 3.11. Tune the combustion for the same O and CO levels as discussed in 3.11.2.  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved.

  • Page 127: Appendix C - Water Quality Standards Quality Standards For Hydronic Boilers In Multi-Metal Systems

    Gas Fired Boiler Technical Service 1.877.728.5351 Appendix C – Water Quality Standards Quality Standards for Hydronic Boilers in Multi-Metal Systems Patterson-Kelley boilers are designed to be incorporated into any multi-metal hydronic heating system. All multi-metal hydronic systems require that attention be paid to water treatment.

  • Page 128: Appendix D - Best Practices For New & Retrofit Systems

    This strainer is not intended to remove fine particulate matter from the boiler system which will be discussed later in this appendix. 4. Patterson-Kelley recommends installing a water meter on the cold water fill piping. The intention of this device is to periodically monitor the amount of fresh water introduced into the system piping.
  • Page 129 (blended) sample. 11. Within the first three months after startup, Patterson-Kelley recommends collecting a follow-up water sample from the hydronic system. This should be compared to the initial startup sample in order to determine any changes in pH, Alkalinity, conductivity, etc.

  • Page 130: Appendix E - Installation And Quick Reference

    Maximum Inlet Pressure = 14.0” W.C. NOTE: Patterson-Kelley recommends installing an individual lock-up type gas regulator in the gas supply piping to each boiler. For installations where one master lock-up type gas pressure regulator will service multiple boilers, Patterson-Kelley recommends contacting the local regulator representative for application assistance specifying the appropriate lock-up type regulator and gas pipe sizing.
  • Page 131 60 °F Switch Switch Switch Switch Minimum Flow Low Fire Setting) Setting) Setting) Setting)  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 120...
  • Page 132 194 GPM (Flow Switch Minimum Flow Ignition 60 °F Setting) Setting Minimum Flow Low Fire  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 121...

  • Page 133: Propylene Glycol Flow

    51.3 ft 658 GPM 73.9 ft 576 GPM 56.7 ft 692 GPM 81.6 ft  Patterson-Kelley 2021 Revised: December 8, 2021 2691000273 P-K Storm ST2500-ST6000 All Rights Reserved. Released: December 8, 2021 Installation and Owners Manual Rev C.docx Page 122...

This manual is also suitable for:

P-k storm st-3000P-k storm st-3500P-k storm st-4000P-k storm st-2500P-k storm st-6000

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