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Watts PVi DigiTemp V85-1 Installation, Operation & Maintenance Manual
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Watts PVi DigiTemp V85-1 Installation, Operation & Maintenance Manual

Digital water tempering system
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Summary of Contents for Watts PVi DigiTemp V85-1

  • Page 1 •...
  • Page 2 WARNING Read this Manual BEFORE using this equipment. Failure to read and follow all safety and use information can result in death, serious personal injury, property damage, or damage to the equipment. Contact your PVI representative with any questions. Keep this Manual for future reference.
  • Page 3 LIMITED WARRANTY / LIMITATION OF REMEDY: What is covered? PVI warrants to the original purchaser only, that the product it manufactured when used as intended and instructed, is free from defects in materials or workmanship for five year warranty from date of shipment to the original purchaser. What is not covered? This Limited Warranty does not cover or is voided by (a) any product, components or parts not manufactured by PVI, (b) faulty or improper installation or unsuitable installation environment, (c) failure to follow instructions or warnings, (d) problems caused by...
  • Page 4 COMPUTER SYSTEM, NETWORK AND DATA DISCLAIMER: DigiTemp receives stores and displays data concerning your water distribution system, performs ™ functions based upon owner/user data input and selections, and can be remotely programmed and utilized with specified and compatible building automation systems. AS SUCH, PVI MAKES NO EXPRESS OF IMPLIED WARRANTY, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING COMPATIBILITY WITH OTHER TECHNOLOGIES, HARDWARE, SOFTWARE, NETWORK OR SYSTEMS, THE ACCURACY OR...

  • Page 5: Table Of Contents

    Table of Contents Introduction ..................2 Safety Information ................3 Understanding Safety Information ............3 Radio Frequency Warnings & Hazards ........... 3 DigiTemp™ Description & Specifications ..........4 Description of Controls & Functions ............9 Set up and Programming ..............20 Sanitization ...................

  • Page 6: Product Identification

    Attention Owners and Users ™ Thank you for purchasing the PVI DigiTemp . This equipment will provide safe and productive operation as long as it is installed, set up, used, and serviced in accordance with the instructions in this Manual and is properly maintained. Owners and users of this equipment have the responsibil- ity to make certain that this equipment is used properly and safely.

  • Page 7: Safety Information

    Important Safety Information Reading & Understanding the Manual • Learn how to properly and safely use WARNING the equipment BEFORE installing, set up, using, or servicing. TO AVOID DEATH, SERIOUS PERSONAL • Keep the Manual available for easy INJURY, PROPERTY access and future reference.

  • Page 8: Digitemp™ Description & Specifications

    DigiTemp Description and Specifications ™ The DigiTemp is electronic water mixing system providing user-directed control and monitoring of water ™ distribution systems. DigiTemp includes an electronic Control Module featuring a color touchscreen digital display to select desired outlet water temperature, an electronically actuated valve that mixes hot water with cold water, temperature sensors (plus a quick response temperature sensor), pressure sensors, check valves, and a recirculation pump to maintain the recirculation loop temperature (reducing wait time for tempered water to reach point-of-use fixtures, saving water and energy).
  • Page 9 DigiTemp Description and Specifications The DigiTemp ™ components Mixed Water Reirculation are shown below: Outlet Return Control Unit Recirculation Temperature and Pressure Sensors Mixed Outlet Temperature and Pressure Sensors Electronically Actuated Valve Hot Temperature and Cold Temperature and Pressure Sensors Pressure Sensors Cold Water...

  • Page 10: Technical Specifications

    DigiTemp Description and Specifications Specifications Maximum Operating Pressure ..........200psi (1378 kPa) Maximum Hot Water Temperature ..........200°F (93°C) Minimum Hot Water Supply Temp.** ....... 2°F (1°C) Above Set Point Hot Water Inlet Temperature Range ........ 120 – 180°F (49-82°C) Cold Water Inlet Temperature Range ........

  • Page 11: Installation

    Installation WARNING Failure to follow all installation requirements risks possible death, personal injury, property damage, and failure of the DigiTemp to perform as intended. ™ ™ • Installation of DigiTemp MUST be performed by qualified technicians, including licensed electricians and plumbers, following all manufacturer’s instructions, complying with all local, state, federal and other governmental requirements, and with all building and construction codes and standards.
  • Page 12 Control Unit Connections (interior) Actuator Motor Hot Supply Temperature Sensor (T4) Cold Supply Temperature Sensor (T3) Recirc Return Temperature Sensor (T2) Mixed Outlet Temperature Sensor (T1) Hot Pressure Sensor (P4) Cold Pressure Sensor (P3) Mixed Outlet Fast Recirc Pressure Temperature Sensor Sensor (P2) Mixed Outlet Recirc Return...

  • Page 13: Description Of Controls & Functions

    Description of Controls and Functions ™ The following sections generally outline and describe the controls and functions of the DigiTemp Control Module you will experience when using the digital display. See “Set Up and Programming” section of this Manual for use instructions. WARNING Always read the Manual and all product labels and follow all safety and other information.
  • Page 14 Description of Controls and Functions By touching the screen the user can access the "Home" screen, shown below. Home Screen Mixed Outlet Setpoint Field 1 Label 140 °F Field 1 Select Field 1 Value Mixed Outlet Temp Field 2 Label 140 °F Field 2 Select Field 2 Value...

  • Page 15: Programming Menu

    Description of Controls and Functions Also shown on the Home screen is the Pump Status Field (showing if pump is ON or OFF), and the icon to access the Programming menu. Touching the icon takes the user to the “Programming” Menu containing six function icons – “Unlock,”...

  • Page 16: Setup Function

    Description of Controls and Functions To set and enter a passcode and unlock the system, follow instructions in the “Set Up and Programming” section of this Manual. NOTICE icon on the Unlock function screen is deactivated until the user enters the correct passcode. icon will take you back to the Programming Menu.

  • Page 17: System Menu

    Description of Controls and Functions System Menu System BAS Setpoint Max 140 °F Mixed Out Setpoint 140 °F High Temp Alert 150 °F Pump Operation Auto Pump Head 0.0 psi Pump Min On/Off Time 1 min Return Target 130 °F Return Differential 10 °F Back...

  • Page 18: Network Menu

    Description of Controls and Functions Network Menu Network Network IP Configuration Auto IP Configuration Manual IP Address ---> MAC Address ---> Subnet Mask ---> Gateway Address ---> MAC Address ---> Back Down Enter Back Down Enter The Network Menu selections are generally described in the table below: Item Field Range Default...
  • Page 19 Description of Controls and Functions BAS Menu The BAS Menu selections are generally described in the table below: When Item Field Range Default Description Additional Info Displayed None = control runs in stand alone. BAC-IP = control is connected to a NONE <>...

  • Page 20: Monitor Function

    Description of Controls and Functions Monitor Function Touching the icon on the “Programming” Menu will allow access to the Monitor Function: System Monitor Current Error Mixed Outlet High 109 °F Mixed Outlet Low 91 °F Energy Used 0 MBtu Recirc Pump 0 hr Hot Inlet High 158 °F...
  • Page 21 Description of Controls and Functions Sanitize Function The Sanitization function produces high tempera- ture water at all point-of-use fixtures (faucets, sinks, tubs, showers, etc.). Only qualified and authorized personnel who fully understand the function's operation, output and risks, should use the Sanitization function, and only as part of and in compliance with, a thermal eradication pro- tocol safely and properly designed by the owner...
  • Page 22 Description of Controls and Functions Touching the icon on the “Programming” Menu will allow access to the sanitization Function: Sanitization Temperature 160 °F Time 30 min Mode Back Down Enter The Sanitization Function allows access to the following fields: Item Field Range Default When Displayed...
  • Page 23 Description of Controls and Functions Toolbox Function Touching the icon on the “Programming” Menu will allow access to the Toolbox Function: Toolbox Firmware J1245x Load Defaults Temperature Units °F Flow Units Energy Units MBtu Pressure Units Backlight 100 % Reset Back Down Enter...

  • Page 24: Set Up And Programming

    Set up and Programming Turn on Power NOTICE Before beginning, make sure all ball valves are in the fully open position. Double valve (DV) system must be set up as individual system described in this section. 1. Turn DigiTemp™ power “ON” by turning on the main switch. 2.
  • Page 25 Set up and Programming Create a passcode NOTICE The DigiTemp™ comes programmed with a factory default passcode (1017). For added security, and to help prevent unauthorized access, it is recommended that you create a unique 4 digit passcode as outlined below. 1.
  • Page 26 Set up and Programming Unlock Back Clear Enter 4. Creating your own passcode: • To create your own passcode, enter the factory default passcode 1017 and press the icon in the lower right corner of the Unlock screen. • Enter a new 4-digit passcode and touch the icon (make sure to keep your new code in a secure place).
  • Page 27 Set up and Programming If you did not set up your own passcode, you can enter the factory default passcode 1017. 2. When the passcode is entered, you will be directed to the liability and responsibility acceptance screen: 3. You must touch the icon to proceed to the Programming Menu and to use system functions.
  • Page 28 Set up and Programming 4. When you touch the icon, you will access the Programming Menu, which will appear as: Programming LOCK SETUP MONITOR SANITIZE HOME TOOLBOX Selecting and adjusting the mixed outlet water temperature The next steps involve selecting or adjusting the mixed outlet water temperature –...
  • Page 29 Set up and Programming Programming LOCK SETUP MONITOR SANITIZE HOME TOOLBOX Touch the icon which will direct you to the Setup Menu which will appear as: Setup System Network Back...
  • Page 30 Set up and Programming Touch the icon which will direct you to the System Menu which will appear as: System BAS Setpoint Max 140 °F Mixed Out Setpoint 140 °F High Temp Alert 150 °F Pump Operation Auto Pump Head 0.0 psi Pump Min On/Off Time 1 min...
  • Page 31 Set up and Programming Using the icons, scroll through the System Menu and select: System BAS Setpoint Max 140 °F Mixed Out Setpoint 140 °F High Temp Alert 150 °F Pump Operation Auto Pump Head 0.0 psi Pump Min On/Off Time 1 min Return Target 130 °F...

  • Page 32: Home Screen

    Set up and Programming The owner or manager of the water distribution system is solely responsible for determining the safe and appropriate temperatures to protect people using, contacting or exposed to water or any parts of the water distribution system from scalding, burning, thermal shock or other hazards, and to control water-borne bacteria in the system.
  • Page 33 Set up and Programming If you are finished at this time, the system will return to a locked state if not touched for 60 seconds. Or, touch the icon twice to return to the “Programming” menu, then press 1. When the system is locked, the “Programming” menu will now display the icon, as shown below on left: System Locked...
  • Page 34 Set up and Programming Accessing other settings on the System Setup Menu 1. From the “Programming” Menu, touch the icon to go to the System Setup Menu: System BAS Setpoint Max 140 °F Mixed Out Setpoint 140 °F High Temp Alert 150 °F Pump Operation Auto...

  • Page 35: Sanitization

    Sanitization The Sanitization function produces high water temperatures and is intended ONLY for use as part of a user-directed, controlled and supervised thermal eradication protocol that has been safely and properly designed to help limit water-borne bacteria within the tempered water distribution system. The instructions contained in this Manual for the Sanitization function are not intended to be a thermal eradication protocol.
  • Page 36 Sanitization 1. On the Programming Menu Programming LOCK SETUP MONITOR SANITIZE HOME TOOLBOX Touch the icon, which will direct you to the responsibility and liability acceptance page:...
  • Page 37 Sanitization 2. You must touch the icon to proceed with the Sanitization function. ■ Touching the icon means you will be unable to utilize the Sanitization function and you will be returned to the “Programming” Menu page. ■ When you touch the icon, you will be directed to the Sanitization menu screen.
  • Page 38 Sanitization 5. Next, select the run time in minutes by first highlighting the TIME function on the Sanitization menu and touching Sanitization Temperature 160 °F Time 30 min Mode Back Down Enter 6. Using the select the desired Run Time. Sanitization WARNING BEFORE starting the Sanitization function, make sure...
  • Page 39 Sanitization 7. To engage/start the Sanitization function, select MODE on the Sanitization menu and touch NOTICE During first 60 seconds upon power up, mode setting does not appear. Sanitization Temperature 160 °F Time 30 min Mode Back Down Enter 8. Once in the MODE menu, toggle to the ON radio button and then select Sanitization Mode...

  • Page 40: Cooling Down

    Sanitization The Sanitization Mode is now fully functional. Note: The HOME screen will indicate you are Sanitizing the water delivery system and indicate Mixed Outlet Temperature. Remaining: 29 min 59 sec SANITIZING Mixed Outlet Temp 160 °F PRGM Recirc Pump ON STOP 9.

  • Page 41: Tekmar ® Digitemp™ Bas Integration Manual

    PVI DigiTemp BAS Integration Manual Configuring the Control for BAS communication 1. Configure the control to communicate using the “User Interface-BAS Menu” information within this manual and/or the “BAS Integration Manual.” Introduction The DigiTemp™ is equipped with a 1069 Control Module designed and programed by tekmar Control Systems Ltd.
  • Page 42 PVI DigiTemp BAS Integration Manual As an additional safety check, once the box is open, confirm that the unit is de-energized by measuring the AC voltage across the “L” and “N” terminals (46 and 45 respectively) using the voltmeter. Alternatively, use a voltage detector to confirm that the unit is NOT energized.
  • Page 43 PVI DigiTemp BAS Integration Manual ® 4. If connecting the control to a BACnet IP supported BAS system simply run a CAT-5E or CAT-6 cable ® from the BACnet Network Switch and connect to the RJ45 Ethernet style jack on the board. NOTICE Cable length not to exceed 150 ft (45.7m) for CAT-5E, or 300 ft.
  • Page 44 PVI DigiTemp BAS Integration Manual 7. Once connected to the control close the enclosure and reconnect the power. BACnet and Modbus Settings in the Intellistation Control ® ® Module Menu When the unit powers up it displays the warning message shown below until 60 seconds has elapsed. After 60 seconds the control will automatically redirect to the “Home”...

  • Page 45: Building Automation

    PVI DigiTemp BAS Integration Manual Unlock the control by entering “1017” and selecting the icon. If the wrong code was entered select to try again. Note: the icon will only work if the correct code is entered. Once unlocked, the control automatically redirects to the “Programming” menu but this time the icon will appear as icon, indicating that the control is unlocked, and the other icons (SETUP,...
  • Page 46 PVI DigiTemp BAS Integration Manual BAS Type NONE BAC-IP BAC-MSTP MODBUS Down Depress the icons to scroll through the BAS types and depress the icon to configure the control to the highlighted type and return to the “Building Automation” menu. Note: depending on the "BAS Type"...
  • Page 47 PVI DigiTemp BAS Integration Manual BAS Menu When Item Field Range Default Description Additional Info Displayed None = control runs in stand alone. BAC-IP = control is connected to a NONE <> BACnet/IP system. BAC-IP <> Building Automation BAS Type NONE Always BAC-MSTP = control is connected to...

  • Page 48: Specific Settings

    PVI DigiTemp BAS Integration Manual Building Automation Building Automation Building Automation BAS Type BAC-IP BAS Type BAC-MSTP BAS Type MODBUS BACnet Device ID 0000000 BACnet Device ID 0000001 Modbus Address BAC-MSTP Address BACnet Port Modbus Data Type 47808 BACNet Baud Rate 9600 Register Foreign Dev Modbus Baud Rate...
  • Page 49 PVI DigiTemp BAS Integration Manual Building Automation BAS Type BAC-IP BACnet Device ID 0000001 BACnet Port 47808 Register Foreign Dev BBMD Time 00000 BBMD IP Address ---> BBMD Port 47808 Back Down Enter The “BBMD Time” and “BBMD Port” are adjusted similarly to the “BACnet Device ID.” The “BBMD IP Address”...
  • Page 50 PVI DigiTemp BAS Integration Manual The “Modbus Address” setting adjustment screen is shown below. Building Automation To adjust the “Modbus Address” either press anywhere on the slider bar and/ or use the arrow keys and then select to save the setting and return to the “Building Automation”...
  • Page 51 PVI DigiTemp BAS Integration Manual BACnet Protocol Implementation Statement (PICS) ® Vendor Name: PVI Industries, LLC. Vendor ID: 601 Product Name: DigiTemp Control Module Product Model Number: 1069-03 Application Software Version: J1269A BACnet Protocol Revision: 10 Product Description: The device is a mixing control designed to deliver tempered water to plumbing fixtures. The control uses a Proportional Integral (PI) logic to accurately maintain a target temperature by mixing a high temperature water source with a low temperature water source.

  • Page 52: Binary Parameters

    PVI DigiTemp BAS Integration Manual BACnet Analog Parameters ® Analog Input Objects= AI Analog Value Object=AV Read=R Read/Write= R/W Analog Input Objects Object Data Name Description Read/ Units Range/ Type Write Value DHW Temp Mixed outlet temperature °F 50 to 180 DHW Recirc Temp Recirculation return temperature °F...

  • Page 53: Modbus ® Specifications

    PVI DigiTemp BAS Integration Manual Modbus Specifications ® Communication Protocol Modbus over RS485 Physical Layer RS485 Two-Wire plus Signal Ground Baud Rate 2400, 9600, 19200, 57.6k, 115k) (default 19200 bps) Recommended Cable 18 AWG Shielded Twisted-Pair (STP) Transmission Mode RTU or ACSII (default RTU) Maximum Cable Length Without terminating resistors - 115,000 baud -->...

  • Page 54: Modbus ® Parameters

    PVI DigiTemp BAS Integration Manual Modbus Parameters ® Read=R Read/Write=R/W System Status Register Register Parameter Name Read/Write Units Type Format Range DHW Target Max °F Input 50 to 180°F DHW Temp °F Input 50 to 220°F DHW Recirc Temp °F Input 50 to 220°F Hot Temp...

  • Page 55: Error Codes

    PVI DigiTemp BAS Integration Manual Error Codes Code Description NVM Error Faulty Mixed Outlet (T1) sensor Faulty Mixed Outlet (FT1) sensor Faulty Recirc Return (T2) sensor Faulty Cold Supply (T3) sensor Faulty Hot Supply (T4) sensor Faulty Mixed Outlet Pressure (P1) sensor Faulty Recirc Return Pressure (P2) sensor Faulty Cold Supply Pressure (P3) sensor Faulty Hot Supply Pressure (P4) sensor...

  • Page 56: Troubleshooting

    Troubleshooting Problem: Unstable control is observed at flow rates greater than the minimum rated flow Solution: Balancing Routine 1. The Balancing Routine is designed to give the software additional information regarding the normal operating balance of the system to eliminate the need for a balancing valve. 2.
  • Page 57 Troubleshooting 4. Once you are sure that the hose connection has a safe path to a drain, open the pump inlet hose connect (1) and ensure that the pump inlet isolation valve (2), the mixed outlet isolation valve (3), the hot inlet isolation valve (4), the cold inlet isolation valve (5), and the hose connection valve (6) are in the fully open position.
  • Page 58 Troubleshooting Problem: Outlet temperature is below set point temperature and/or the low temperature alarm has been activated Solution: 1. Depending on the heating plant plumbing and location, it may take several minutes for the hot water to reach the panel. Ensure that you have allowed enough time (5 minutes) for the system to come up to temperature.
  • Page 59 Troubleshooting b. Ensure that the hot water inlet isolation valve is in the fully Open (ON) position as shown below Open (ON) Closed (OFF) c. Check the hot water source set-point temperature and ensure that the hot supply line has no obstructions or closed valves restricting flow to the DigiTemp.
  • Page 60 Troubleshooting Toolbox Press the and then and the control will reset and begin a start up sequence. 5. Reset the control by opening and closing the circuit breaker switch and wait 60 seconds to resume normal operation. Always use proper precautions when accessing circuit breaker box. NOTICE If problem persists after conducting the above outlined problem solving procedures, contact PVI Customer Care at 800-433-5654.
  • Page 61 Troubleshooting Problem: Outlet temperature above set point Solution: 1. Ensure flow is above the minimum rated flow by opening the hot water valve on two to four fixtures being supplied with tempered water from the panel. 2. Ensure that the cold supply isolation valve is in the fully open position as shown below. Open (ON) Closed (OFF) 3.
  • Page 62 Troubleshooting 5. Unlock the control (see “Unlock the System” of this Manual for more detail) and then select the to navigate to the “Toolbox” menu shown below. Toolbox Load Defaults Temperature Units °F Flow Units Energy Units MBtu Pressure Units Backlight 100 % Reset...
  • Page 63 Troubleshooting Problem: If displays “---” Instead measured value. Solution: 1. A sensor is not connected or functioning properly. 2. Check the connection at the sensor and the connection within the control module. ™ 3. Disconnect all power and fully de-energize DigiTemp BEFORE opening the control module.
  • Page 64 Troubleshooting Toolbox Press the and then and the control will reset and begin a start up sequence. Note: Alternatively, the control can be reset by opening and closing the circuit breaker switch and wait- ing 60 seconds to resume normal operation. Always use proper precautions when accessing circuit breaker box.
  • Page 65 Troubleshooting Error Codes If the control detects a problem, an error will display on the Home screen and from within the “System Monitor” menu. To navigate to the System Monitor” menu press icon, unlock the control (see detailed Unlock instructions in this Manual for more information), and select from within the “Programming”...
  • Page 66 Troubleshooting Control Behavior Hierarchy Description Resolution during Error Condition Load defaults and/or power cycle NVM Error Do not operate any outputs the control Faulty Mixed Outlet Ensure that the T1 wiring is Do not operate any outputs (T1) sensor correct Faulty Mixed Outlet Ensure that the FT1 wiring is Do not operate any outputs,...

  • Page 67: Replacement Part Numbers

    Replacement Part Numbers Replacement Part # Description 143391 1 ½ Inch, 3-way valve (model V85) 143392 2 Inch, 3-way valve (model V135) 143393 Valve actuator 143394 Pressure sensor with wire (P) 143395 High-speed temperature sensor with wire (FT) 143397 Controller 143396 Temperature sensor with wire (T) Scheduled Testing, Inspection and Maintenance...

  • Page 68: Maintenance

    Scheduled Testing, Inspection and Maintenance Maintenance ■ Actuator and/or Valve Removal NOTICE Valves and actuators are not field serviceable. They must be removed and replaced. Tools Required: • 10mm and " sockets, elbow and torque wrench. Not required if replacing both valve and actuator •...
  • Page 69 Scheduled Testing, Inspection and Maintenance 1. Once de-energized and disconnected, the display will become inactive and the control box can be opened. As an additional safety check, once the box is open, confirm that the unit is de-energized by measuring the AC voltage across the “L”...
  • Page 70 Scheduled Testing, Inspection and Maintenance Actuator Armature Clamping Nut Support Plate Bolts Valve Replacement ■ 1. Once de-energized the display will become inactive. 2. If removing only the valve use Step 4 from the “Actuator Removal” 3. Disconnect the pressure sensor (P1) and outlet sensor (FT1). Using a wrench remove the redundant temperature (T1) from the pipe fitting.
  • Page 71 Scheduled Testing, Inspection and Maintenance Electronically Controlled Valve Mixed Outlet Temperature and Pressure Sensors Unions 5. If replacing the valve remove the NPT couplers, union fittings, and actuator mounting plate from the old valve and transfer them to the replacement valve for reinstallation. 6.
  • Page 72 Scheduled Testing, Inspection and Maintenance 1. The actuator armature must be positioned in the un-powered rest position. Marked "Correct" in the picture below Actuator Correct Incorrect Incorrect 2. To adjust the armature position, depress the actuator manual override button (see below) and turn the armature to the “Correct”...
  • Page 73 Scheduled Testing, Inspection and Maintenance Valve Outlet Correct Incorrect Incorrect 4. Once both the actuator and valve have been aligned “correctly” the actuator can be reinstalled onto the valve by sliding actuator over the valve stem until the actuator sits tight against the actuator sup- port plate with the actuator positioned vertically as shown below.
  • Page 74 Scheduled Testing, Inspection and Maintenance 5. Using the " wrench, install the support plate bolts (see below) until snug. Ensure that the support plate bolts are sufficiently loose to allow for some very slight movement between the support plate and the actuator. This play will allow the actuator to find the proper position when the armature clamping nut is tightened down.
  • Page 75 Scheduled Testing, Inspection and Maintenance 8. Run the control wires up to the control along the same path as when removed. 9. Cut wires to an appropriate length and strip to allow for installation into the terminal blocks. 10. Wire to terminal blocks as follows: 1.
  • Page 76 DigiTemp ™ Digital Water Tempering System PVI Industries, LLC Fort Worth, Texas www.PVI.com PV8712 10.27.2023 © 2023 PVI Industries, LLC...

This manual is also suitable for:

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