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Guspro BB-8416884 Operation & Maintenance Manual

Heat cleaning oven
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GUSPRO
.
INC
CHATHAM, ONTARIO
CANADA
HEAT CLEANING OVENS
OPERATIONS & MAINTENANCE MANUAL
OVENS WITH E BURNERS
2017_E_TYPE-HL.doc
24-Oct-2017

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  • Page 1 GUSPRO CHATHAM, ONTARIO CANADA HEAT CLEANING OVENS OPERATIONS & MAINTENANCE MANUAL OVENS WITH E BURNERS 2017_E_TYPE-HL.doc 24-Oct-2017...
  • Page 2 BB-8416884 MODEL NUMBER: ____________________ C-18004 SERIAL #: _________________ MANUFACTURED BY GUSPRO INC. 566 RIVERVIEW DRIVE CHATHAM, ONTARIO N7M 5J6 CANADA TELEPHONE: (519) 352-4550 FAX: (519) 352-7676 Website: www.guspro.com Email: Guspro@guspro.com 2017_E_TYPE-HL.doc 24-Oct-2017...
  • Page 3 NOTICE Both the main gas valve and the electric supply should be clearly marked or tagged. INSTALLATION This unit shall be installed in accordance with the National Fuel Gas Code ANSI Z223.1, The National Gas Installation Code CAN/CGA B149.1 or the Propane Installation Code CAN/CGA-B 149.2, as applicable.
  • Page 4 Ventilate area by opening windows and doors (if possible). Contact your local supplier or licensed installer. Notify Guspro Inc. FOR YOUR SAFETY Do not store or use gasoline or other flammable vapours or liquids in the vicinity of this or any other appliance.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS Page 1.0 - GUSPRO HEAT CLEANING OVEN .............. 1 Introduction ........................1 Design ..........................3 1.2.1 Introduction ......................3 1.2.2 Specifications ......................3 Burners ...........................5 Materials of Construction ....................5 Instrumentation and Control ..................5 Installation........................6 Air Permits ........................7 Local Codes ........................7 Safety Standards......................8 1.10...
  • Page 6 Water Supply .......................19 Receiving ........................20 Storage .........................21 Installation........................21 3.8.1 Introduction ......................21 3.8.2 Stack Installation ....................21 3.8.3 Procedure .......................22 4.0 - OPERATION ....................25 Introduction ........................25 4.1.1 Process Chamber ....................25 4.1.2 High Combustible Loads ..................25 4.1.3 Oxidizer Chamber ....................26 System Checks Prior To Start-Up ................26 Initial Start-Up ......................27 Curing Procedure ......................30 Operating Sequence .....................31...
  • Page 7 Adjustments .........................46 7.5.1 For Normal Loads ....................46 8.0 - GENERAL TROUBLE-SHOOTING ............. 46 Oven Will Not Start .....................46 Electrical System Check ....................47 Start Oven ........................47 Process Burner Fails To Purge ..................47 Oxidizer Burner Motor Fails To Start ................48 Oxidizer Burner Motor Starts But Flame Does Not Ignite ..........48 Electrode Arcs But Pilot Does Not Ignite ..............48 Pilot Fires But Will Not Stay Lit .................49 Pilot Lights But Main Burner Will Not Fire ..............49...
  • Page 8 LIST OF TABLES Table Page Summary of Loads That Can Be Processed ..............2 Summary of Loads That Cannot Be Processed ............3 Oven Design Information ..................4 Summary of Oxidizer Combustible Ratings ..............4 Minimum Suggested Stack Clearances ..............16 Firing Sequence .......................33 Summary of Maintenance Tips ................44 E-Burner Factory Air and Gas Flow Settings ............55 E-Burner Trouble Shooting Tips ................55 LIST OF FIGURES...

  • Page 9: Guspro Heat Cleaning Oven

    1.0 - GUSPRO HEAT CLEANING OVEN Introduction The Guspro heat-cleaning oven is state-of-the-art technology that enables heat cleaning of parts coated with grease, oil, paint, carbon, plastics and water scale. Materials that can be heat cleaned include steel, aluminum, and cast iron.

  • Page 10: Summary Of Loads That Can Be Processed

    • Eliminates use of expensive cleaning chemicals, waste slurry disposal costs and associated liability. The burners on the Guspro heat cleaning ovens are sized to ensure that heavy loads are brought to processing temperature fast. Depending on the oven model and site-specific loads, the powerful standard refractory-lined oxidizer can process up to 70 pounds of combustibles per hour once operating temperatures are reached.

  • Page 11: Design

    1.2.1 Introduction Guspro heat cleaning ovens are of the two stage controlled air design. The first stage is called the Process Chamber, while the second stage is called the Oxidizer Chamber. A separate burner(s) heats each chamber. The process chamber burner(s) is fires into an internal or external firebox.

  • Page 12: Oven Design Information

    Table 1.3 Oven Design Information Design Burner Rating Actual Inside Dim. Model Burner Model Load (BTU/hr) (Inches) PROCESS OXIDIZER PROCESS OXIDIZER GO-484072 3,000 500,000 750,000 GO-484084 3,000 500,000 750,000 GO-606060 4,000 750,000 750,000 GO-607272 4,000 750,000 750,000 GO-607284 4,000 750,000 750,000 GO-727272 5,000...

  • Page 13: Burners

    Materials of Construction All Guspro ovens are fabricated with hot rolled 7-gauge steel floors and 12-gauge steel wall and roof backed by a framework of 3" channel, tube and flat iron. All steel work is finished...

  • Page 14: Installation

    Risk Insurers (IRI) standards are available at extra cost where required by the purchaser or the insurance underwriter. Installation The Guspro heat-cleaning oven is completely piped, wired and tested at the factory to reduce installation costs to a minimum. Page 6 of 55 2017_E_TYPE-HL.doc...

  • Page 15: Air Permits

    However, operation of the oven will require an air permit from the local Air Pollution Control Authority. The process of securing a permit to construct or install process equipment like the Guspro oven usually requires that the purchaser fill out the applicable local forms and provide information about the process, the equipment and the location where the equipment is to be used.

  • Page 16: Safety Standards

    Guspro Inc. makes no guarantee with respect to motors, controls, or other apparatus of third party manufacture. The respective manufacturers usually guarantee these separately.

  • Page 17: Control And Safety Configuration

    2.0 - CONTROL AND SAFETY CONFIGURATION Introduction Figure 2.1 displays a schematic of the main control panel. Main Control Panel The central control panel includes the following features: • Two 1/8 DIN digital temperature controllers. One controller controls the burner(s) and the temperature in the process chamber.
  • Page 18 Figure 2.1 Main Control Panel with Electric Door Lock Option. Page 10 of 55 2017_E_TYPE-HL.doc 24-Oct-2017...

  • Page 19: Temperature Controllers

    The OTS system is activated by the process and oxidizer chamber temperature controllers on the main panel. 2.2.2 Cycle Timer All Guspro ovens are supplied with programmable ramp and soak microprocessor controllers and may not have a separate cycle timer. The microprocessor controls the cycle time. 2.2.3 Fault Light Red Fault lights located on the panel will indicate if either the process or oxidizer chamber burners has faulted out and gone into Reset mode.

  • Page 20: Reset Faults

    2.2.5 Reset Faults The Reset Faults push buttons are located on the flame safety modules. It is used to resume normal operation after either a Process or Oxidizer fault has been corrected. 2.2.6 OTS Test The OTS (Over Temperature Suppression) Test push-button is used to verify that the OTS spray misting system is functioning properly.

  • Page 21: Gas Burners

    Effective June 15, 1996 all oven models, irrespective of size, are equipped with an ETC-S high limit system. The ETC-S system shuts down the oven when the stack temperature exceeds a pre-set value (1850 F) depending on local codes. Once the ETC-S system trips open, the system cannot be re-started unless it is manually reset.

  • Page 22: Process Chamber Burner Configuration

    Combustion air is supplied at the burner by a manually set damper. Damper settings are calibrated at the factory and should not be adjusted unless Guspro Inc. has been consulted. Gas flow modulation is accomplished through a High-Low fire actuator valve which is cycled by the temperature controller to maintain set point.

  • Page 23: Flame Safety Controls

    Optional Controls Guspro ovens are built to CGA & AGA specifications. Operating and safety controls meet or exceed Federal and local codes. The purchaser should check with the insurance broker and the on-site policy regarding the installation of fuel fired equipment.

  • Page 24: Installation

    Guspro Inc. will furnish technical support material for submittal with the application forms (see Section 1.7). Guspro will also complete a technical inspection of the forms and supply independent test report data upon request. In some localities, building permits are required for installation of process equipment such as the Guspro heat-cleaning oven.

  • Page 25: Electrical Service

    • Provide fork truck or crane service to facilitate the installation of the oven and stack. • Arrange for utility connections for start-up and operation of the oven. 8. Guspro factory service representatives are available to supervise installation and start up at a daily rate, including per diem and travel expenses.

  • Page 26: Fuel Supply

    Fuel Supply Guspro ovens include complete manifold on the oven for single point fuel connection with either Natural Gas or Liquefied Propane Gas (LPG). Oil fired units are also available. Individual requirements for ovens burning these fuels are discussed below.

  • Page 27: Liquefied Propane Gas Service

    3.4.3 Oil Service Guspro Ovens may also be operated with diesel, #1 fuel oil or #2 fuel oil. When oil burners are supplied, the purchaser must supply an oil supply tank, with supply and return lines and proper oil filtration.

  • Page 28: Receiving

    Under the terms of the sale, shipment becomes the purchaser’s property when released by Guspro to the carrier. While Guspro is not responsible for loss or damage in transit, Guspro will assist in processing claims against the carrier when necessary.

  • Page 29: Storage

    48 hours after receipt. Guspro must always be notified when lost, short-shipments, or damages occur so that a record can be made. This will aid supply of replacement parts and preparation of repair or replacement cost estimates.

  • Page 30: Procedure

    Note: Gaskets are not required between the stack flanges. However, if sealant is available, it is recommended that a bead be placed on a flange face before each section is bolted together. A barometric damper is required if the stack height exceeds 27' (or 1.5 times the standard stack height).
  • Page 31 Figure 3.1 Assembly Instructions for Bolting Oxidizers. Page 23 of 55 2017_E_TYPE-HL.doc 24-Oct-2017...
  • Page 32 Figure 3.2 Stack Assembly for Ovens With Heavy Duty Oxidizers. Page 24 of 55 2017_E_TYPE-HL.doc 24-Oct-2017...

  • Page 33: Operation

    4.0 - OPERATION 4.1 Introduction As explained in previous sections, the Guspro Heat Cleaning Oven includes a process chamber, an integral thermal oxidizer, temperature controls for burners and air supply, and a water mist injection system. Both the process and oxidizer temperature controllers control the water mist injection system.

  • Page 34: Oxidizer Chamber

    temperature rise in the process and oxidizer chambers if not regulated. On loads that have a high combustible content, it may be necessary to program a ramp and soak temperature profile in the process chamber controller. Special temperature controllers are available to automatically implement these control strategies.

  • Page 35: Initial Start-Up

    Initial Start-Up This section describes the steps involved during the initial start-up procedure for a Guspro Heat Cleaning Oven after it has been connected to gas, electricity, water and the stack has been installed. A summary of factory gas and airflow settings is presented in Table 9.1. These are initial settings.
  • Page 36 Turn on the electrical power. Check the set-points parameters on the panel temperature controllers to ensure the proper settings. The process chamber set point should be set at 250 F, which corresponds to the first curing level. The process alarm (water mist) should be set at 50 F.
  • Page 37 Close the doors and cure the oven as per Section 4.4. Caution: Do not proceed further without curing the unit! After the cure cycle, shut off the power and open the panel door and remove the yellow jumper wire for the oxidizer preheat cycle. Close the panel door. Open the firing valve on the oxidizer burner.

  • Page 38: Curing Procedure

    Curing Procedure After installation, the oven must be cured. The curing procedure is described below. Note: Ovens with special requirements are tagged. Further, wood forms are left in the oxidizer for all ovens. These forms burn out during curing and may emit some smoke temporarily.

  • Page 39: Operating Sequence

    Operating Sequence The sequence of events that occur during normal operation of the oven is explained below. Further, the electrical component firing sequence is listed in Table 4.1 The wiring ladder diagram is included in the Appendix. The process chamber must be heated slowly and evenly without direct exposure to the flame.

  • Page 40: Firing Sequence

    Table 4.1 Firing Sequence System on TE1 (process controller) Energies and illuminates PV (process value) TE2 (oxidizer controller) and SV (set value) TE3 (process high temp controller) CR9 energizes (process high temp relay) TE4 (high temp safety controller) CR8 energizes (high temp safety relay) PBC 1 (7800 module process) Electronic circuits energized OBC 2 (7800 module oxidizer)
  • Page 41 Firing Sequence [Contd.] NOTE 1: When the temperature in the oxidizer chamber reaches the set point indicated on oxidizer chamber controller TE2, control output OUT1 will modulate the oxidizer burners Hi/Lo actuator OMV to maintain temperature at the set point value through to the end of the program on TE1.

  • Page 42: Operating Procedure

    Note: Some units are loaded with fork trucks and do not require cart track extensions. The following sequence of events occurs after the oven is turned on: • The process chamber is purged with air equal to four times the combined volume of the process chamber, oxidizer chamber and the stack.
  • Page 43 Standard controls -Verify the set points for both chambers. Ensure that the AL-1 setting in the process controller is 50 F, while the AL-1 setting in the oxidizer controller is 100 F. The AL-1 alarm activates the OTS water mist. Programmable controls - Check the temperature profile that has been entered.

  • Page 44: Precautions

    5.0 - PRECAUTIONS This section briefly discusses basic precautions that should be taken during oven operation. A comprehensive treatment of maintenance and trouble shooting procedures is presented in Sections 6-9. Loading Plugs or caps should be removed from jackets. Parts that have sealed water or liquids must not be processed.

  • Page 45: Parts

    8. A slow cool down rate can be achieved by keeping doors shut. Keeping the doors slightly open will accelerate cooling. The system switch should be left ON to monitor temperature during cooling. Parts Aluminum parts should always be processed below 600 F.

  • Page 46: General Maintenance

    This section presents an overview of maintenance procedures for various components of a Guspro Heat Cleaning Oven. It is recommended that maintenance inspections of the oven be carried out on a regular basis and that defective parts should be immediately replaced.

  • Page 47: Flame Scanner

    Note: Over tightening will crack the electrode porcelain. Test for ignition by either restarting the oven or pushing the Reset button. 6.2.3 U.V. Flame Scanner Check that the glass on the U.V. scanner is clean. This is a threaded connection and is easily removed if dirty.

  • Page 48: Automatic Gas Valve

    Disconnect the airflow tube and blow out clogged debris with compressed air if required. 6.2.8 Automatic Gas Valve The automatic gas valve (On-Off Fluid Power Actuator and Valve Body) is rated at 120V and is supplied as part of the E burner gas train. Note: These gas valves are not field repairable and have to be replaced if they leak or fail.

  • Page 49: Firebrick Soaps

    • Heat leakage would increase the oven heat up time and the ambient temperature. • Increase fuel consumption, thus increasing operating costs. • Reduce the life of the 12-gauge hot rolled steel oven wall. If a section of the wall insulation is so damaged, a patch of insulation should be installed to repair the wall.

  • Page 50: Ash Handling And Disposal

    Ash Handling and Disposal Ash, pigments, dirt or other residual inorganic material from the heat cleaning process should be removed periodically using an industrial strength vacuum. Ash accumulation will: • Cause an increase in heat up times in the process chamber, due to absorption of a portion of the chamber natural gas heat input by the ash.

  • Page 51: Summary Of Maintenance Tips

    2'' overlapped joints are backed by 2'' of 1200 F insulation. All Guspro ovens with either standard or safety doors are equipped with complete adjustment features. Safety doors have a door lock screw adjustment to compensate for pin wear on the lock. Both doors compensate for gasket compression with cam lock adjustments.

  • Page 52: Over Temperature Suppression System

    7.0 - OVER TEMPERATURE SUPPRESSION SYSTEM Introduction The OTS (Over Temperature Suppression) system injects a fine, cone-shaped water mist spray to handle virtually any over-temperature condition or ignition inside the heat-cleaning oven. Since the spray nozzles are made of stainless steel, they tend to gall and bind from the high temperature inside the oven.

  • Page 53: Testing

    This causes the normally closed solenoid valve on the water line to be energized, spraying water through the misting nozzles to cool the process chamber and oxidizer flue gases. This water spray action continues until the oxidizer temperature is reduced below the alarm setting.

  • Page 54: Adjustments

    Guspro Inc. or its factory representative should be contacted in regards to maintenance and repairs. The customer can perform the greater majority of repairs. In a few isolated instances, it may be necessary to retain the services of Guspro personnel or a local service company.

  • Page 55: Electrical System Check

    If the gauge does not indicate any pressure, open the main line supply valve. If the supply valve is open, check the supply regulator setting. b) Are all the manual gas valves on the oven manifold and valve trains open? Electrical System Check a) Turn on the electrical power on to the oven.

  • Page 56: Oxidizer Burner Motor Fails To Start

    Note: 1. Large units also have a backup process chamber OTS controller. 2. The process chamber burner motor will run long enough to purge four times the system volume before the oxidizer burner will fire. This will take between 1-15 minutes depending on the unit size.

  • Page 57: Pilot Fires But Will Not Stay Lit

    turn increases gas flow, while a counter-clockwise turn decreases the gas flow. • Is the pilot solenoid valve opening? It can usually be heard or felt as it opens. • Is the pilot pipe opening (orifice) plugged with dirt or corrosion? This is easily checked visually by loosening a single screw.

  • Page 58: Burner Cycles

    The E-Burner is a package type burner. The burner is manufactured by Guspro Inc. and has been CGA & AGA approved for use on Guspro Heat Cleaning Ovens. The burner is complete with motor and blower, ultraviolet flame safeguard controls, ignition transformer, spark electrode, pilot and firing valves.

  • Page 59: Ignition Sequence

    Ignition Sequence 1. Blower on-air switch closes. 2. Pilot ignition on (spark cuts off after pilot flame proves). 3. Pilot solenoid open - pilot flame proves - runs continuously while the burner is on. 4. UV scanner proves pilot in 4 seconds. If the flame does not prove, the burner will lockout. 5.
  • Page 60 Figure 9.1 Schematic of E-Burner. Page 52 of 55 2017_E_TYPE-HL.doc 24-Oct-2017...
  • Page 61 Figure 9.2 E-Burner Sequence of Operation. Page 53 of 55 2017_E_TYPE-HL.doc 24-Oct-2017...

  • Page 62: E-Burner Factory Air And Gas Flow Settings

    Table 9.1 E-Burner Factory Air and Gas Flow Settings Process Variable Setting Process burner air Adjust air damper to open approximately 1/4" - 3/8". Process burner flame protrusion Maximum 1" flicker from firebox ports. Oxidizer burner air Adjust air damper to open approximately 1/4" - 3/8". Oxidizer air port 1/3"...

  • Page 63: Appendix

    APPENDIX 2017_E_TYPE-HL.doc 24-Oct-2017...
  • Page 64 OMRON TEMPERATURE CONTROLLER SETTINGS - PROCESS The procedure shown below describes the programmable controller settings utilized during the assembling and testing of the Guspro heat cleaning ovens. A Guspro technician should be contacted if there is any deviation from the following procedure.
  • Page 65 OXIDIZER Omron Temperature Controller - Factory Settings Chamber Temperature Controller LED Setting ( (light) Oxidizer Chamber OUT1 Oxidizer Alarm 1 (OTS mist) F (deviation OUT 2 above set point) Oxidizer Alarm 2 Proof of temp SUB1 (1,400 Oxidizer Alarm 3 Not Used SUB2 Note: T...
  • Page 66 Stack High Temperature Safety Controller West 6700+ Series Changing Set Point Instructions Power up the West 6700+ controller Push and hold down scroll key and tap the up key OPTr / SLCT will display Tap the up arrow key, SETP / SLCT will display Tap the scroll key, Uloc will display Tap the up key to 10 Tap the scroll key SP value (1850) will display...
  • Page 70 E5CN-HT E5AN-HT E5EN-HT Digital Controllers User’s Manual Programmable Type Produced December 2010...
  • Page 71 Conventions Used in This Manual Meanings of Abbreviations The following abbreviations are used in parameter names, figures and in text explanations. These abbreviations mean the following: Symbol Term Process value Set point Set value Auto-tuning Heater burnout Heater short (See note 1.) Heater overcurrent Loop burnout alarm Engineering unit (See note 2.)
  • Page 72 How to Read Display Symbols The following tables show the correspondence between the symbols displayed on the displays and alphabet characters. The default is for 11-segment displays. a b c d e f g h i j k l m A B C D E F G H I J K L M n o p q r s t u v w x y z N O P Q R S T U V W X Y Z...
  • Page 73 Section 1-1 Names of Parts E5EN-HT Operation indicators No. 1 display Temperature unit Program Status No. 2 display Indicators No. 3 display Operation indicators Up Key Mode Key PF Key Run/Reset Key Infrared Communications Light Receiver Down Key Level Key 1-1-2 Explanation of Indicators No.
  • Page 74 Names of Parts Section 1-1 3. OUT1 (Control Output 1) Lit while the control output function assigned to control output 1 is ON. For a linear output, however, OFF only for a 0% output. With position-proportional models, OUT1 is lit while the "open" output is OUT2 (Control Output 2) Lit while the control output function assigned to control output 2 is ON.
  • Page 75 Section 1-1 Names of Parts 1-1-3 Using the Keys This section describes the basic functions of the front panel keys. PF (Function or Run/ This is a programmable function key. When it is pressed for at least 1 second, Reset) Key (E5AN-HT and the function set in the PF Setting parameter will operate.
  • Page 76 Setting Level Configuration and Key Operations Section 1-3 Setting Level Configuration and Key Operations Parameters are divided into groups, each called a level. Each of the set val- ues (setting items) in these levels is called a parameter. The parameters on the E5CN/AN/EN-HT are divided into the following 9 levels.
  • Page 77 Section 1-3 Setting Level Configuration and Key Operations Level Control in progress Control stopped Calibration level Can be set. Communications setting level Can be set. Of these levels, the initial setting level, communications setting level, advanced function setting level, and calibration level can be used only when control is stopped.
  • Page 78 Setting Level Configuration and Key Operations Section 1-3 Monitor/Setting Item Level • To switch to the monitor/setting item level, press the PF Key from the operation level, program setting level, adjustment level, or PID setting level. The contents set for monitor/setting items 1 to 5 can be displayed. You can move from the monitor/setting item level to the operation level or initial setting level.
  • Page 79 Section 1-4 Communications Function 1-3-1 Selecting Parameters • Within each level, the parameter is changed in order (or in reverse order) each time the M Key is pressed. (In the calibration level, however, param- eters cannot be changed in reverse order.) For details, refer to SECTION 5 Parameters.
  • Page 80 Section 1-4 Communications Function 3. Select the parameters as shown below by pressing the M Key. 4. Press the U or D Key to change the parameter setting. Protocol Setting psel u-no Communications Unit No. Communications Baud Rate Communications Data Length (See note.) sbit Communications Stop Bits...
  • Page 81 SECTION 3 Basic Operation This section describes the basic operation of the E5CN-H, E5AN-H, and E5EN-H Digital Controllers, including key operations to set parameters and descriptions of display elements based on specific control examples. Initial Setting Examples ......... Setting the Input Type .

  • Page 82: Initial Setting Examples

    Section 3-1 Initial Setting Examples Initial Setting Examples Initial hardware setup, including the sensor input type, alarm types, control periods, and other settings is done using parameter displays. The O and M Keys are used to switch between parameters, and the amount of time that you press the keys determines which parameter you move to.
  • Page 83 Section 3-1 Initial Setting Examples Example 1 (Models with Standard or Heating/Cooling Control) Setup Procedure Input type: 5 (K thermocouple, −200.0°C to 1,300.0°C) Power ON Power ON Control method: ON/OFF control If the power supply is Alarm type: 2 (upper limit) turned ON before the sensor is wired, Alarm value 1:...
  • Page 84 Section 3-1 Initial Setting Examples Example 2 (Models with Standard or Heating/Cooling Control) Setup Procedure 9 (T thermocouple, −200.0°C to 400.0°C) Input type: Power ON Power ON Control method: PID control PID constants found using auto-tuning (AT). If the power supply Alarm type: 2 upper limit is turned ON before...
  • Page 85 Section 3-1 Initial Setting Examples Example 3 (Models with Position-proportional Control) Input type: 5 (K thermocouple, −200.0°C to 1,300.0°C) Control method: Floating control (default) Setup Procedure Travel time: 45 s Power ON Power ON Set point Segment 3 Segment 1 Segment 2 Operation Level 100.0...

  • Page 86: Setting The Input Type

    Section 3-2 Setting the Input Type Setting the Input Type The Controller supports 3 input types: platinum resistance thermometer, ther- mocouple, and analog inputs. Set the input type that matches the sensor that is used. 3-2-1 Input Type The following example shows how to set a K thermocouple for −20.0 to 500.0°C.
  • Page 87 Section 3-2 Setting the Input Type Input type Specifications Set value Input temperature setting range −50.0 to 200.0 (°C)/−50.0 to 200.0 (°F) Platinum resistance Pt100 thermometer Current input 4 to 20 mA Either of the following ranges, by scaling: −19999 to 32400 0 to 20 mA −1999.9 to 3240.0 Voltage input...

  • Page 88: Selecting The Temperature Unit

    Section 3-3 Selecting the Temperature Unit Selecting the Temperature Unit 3-3-1 Temperature Unit • Either °C or °F can be selected as the temperature unit. • Set the temperature unit in the Temperature Unit parameter of the initial setting level. The default is c (°C). The following example shows how to select °C as the temperature unit.

  • Page 89: Setting Output Specifications

    Section 3-5 Setting Output Specifications Setting Output Specifications The following table shows the parameters related to outputs. Each of the parameters is described in detail following the table. Parameter Standard Position- models proportional models ● Control Period (Heating) ● c-cp Control Period (Cooling) ●...

  • Page 90: Assigned Output Functions

    Section 3-5 Setting Output Specifications For example, when the process value (PV) is lower than the set point (SP) in a heating control system, the manipulated variable increases according to the difference between the PV and SP. Accordingly, reverse operation is used in a heating control system.
  • Page 91 Section 3-5 Setting Output Specifications Parameter name Symbol Initial status sub2 Auxiliary Output 2 Assignment Alarm 2 sub3 Auxiliary Output 3 Assignment Alarm 3 (E5AN/EN-H only) • Each output is automatically initialized as shown below by changing the control mode. Example: E5CN-HT Parameter name Symbol...
  • Page 92 Section 3-5 Setting Output Specifications 3. Press the U Key to set the parameter to h-c. Initial Setting Level Note The following output assignments do not need to be set because they 5-hc are set automatically by changing the control mode, but they are shown here as a reference for checking the assignments for each out- put.
  • Page 93 Section 3-5 Setting Output Specifications 14. Press the O Key for at least one second to move from the advanced Initial Setting Level function setting level to the initial setting level. Input Type in-t 15. Press the O Key for at least one second to move from the initial setting Operation Level level to the operation level.

  • Page 94: Setting Programs

    Section 3-6 Setting Programs Setting Programs 3-6-1 Outline of Program Functions • Up to 8 programs (patterns) can be created and each program can have up to 32 segments (steps). Program 7 (highest program number) Program 1 Program 0 point Segment 31 (highest segment Segment 1...

  • Page 95: Program Setting Example

    Section 3-6 Setting Programs • The setting range is END or 0 to No. of Segments Used −1. The default is END (segment setting completed). Setting the Segment Set • For step time programming, each segment has a Segment Set Point Points and Segment parameter and a Segment Time parameter.
  • Page 96 Section 3-6 Setting Programs 4. Press the M Key to select the Number of Segments Used parameter. s-no 5. Press the UD Keys to change the setting to 4. 6. Press the M Key to select the Display Segment Selection parameter. d.seg 7.

  • Page 97: Using On/Off Control

    Section 3-7 Using ON/OFF Control 27. Press the O Key three times to move from the program setting level to Operation Level the operation level. 30.0 50.0 Using ON/OFF Control In ON/OFF control, the control output turns OFF when the temperature being controlled reaches the preset set point.

  • Page 98: Settings

    Section 3-7 Using ON/OFF Control Reverse operation Dead band Hysteresis (heating) Hysteresis (cooling) Heating Cooling side side Set point Parameters Symbol Parameter: level Application s-hc Standard or Heating/Cooling: Initial setting level Specifying control method cntl PID ON/OFF: Initial setting level Specifying control method orev Direct/Reverse Operation: Initial setting level...

  • Page 99: Determining The Pid Constants (At Or Manual Settings)

    Section 3-8 Determining the PID Constants (AT or Manual Settings) Setting the Hysteresis ° Operating Procedure Set the hysteresis to 2.0 1. Press the O Key twice to move from the operation level to the adjustment Operation Level level. PV/SP 25.0 100.0 Adjustment Level...
  • Page 100 Section 3-8 Determining the PID Constants (AT or Manual Settings) • Auto-tuning will stop if the Run/Reset parameter is set to Reset and the Reset Operation parameter is set to stop control, or if you switch to man- ual operation. •...
  • Page 101 Section 3-8 Determining the PID Constants (AT or Manual Settings) AT Hysteresis The AT Hysteresis parameter sets the hysteresis when switching ON and OFF for the limit cycle operation during auto-tuning. Limit Cycle MV Amplitude The Limit Cycle MV Amplitude parameter sets the MV amplitude for limit cycle operation during auto-tuning.
  • Page 102 Section 3-8 Determining the PID Constants (AT or Manual Settings) 4. To return to the operation level, press the O Key. Operation Level 25.0 Note PID Constants When control characteristics are already known, PID constants can be set directly to adjust control. PID constants are set in the Proportional Band (P), Integral Time (I), and Derivative Time (D) parameters, according to the Dis- play PID Selection parameter setting in the PID setting level.

  • Page 103: Rt (Robust Tuning)

    Section 3-8 Determining the PID Constants (AT or Manual Settings) Temperature Temperature Much hunting occurs. Hunting is reduced. Set value Set value Time Time Start of control Start of control • When the temperature (PV) falls short of the set point for the PID con- stants when using auto-tuning in normal mode, executing auto-tuning in RT Mode tends to improve performance.

  • Page 104: Manual Setup

    Section 3-8 Determining the PID Constants (AT or Manual Settings) 5. Press the U Key to select on. off is the default. 6. To return to the initial setting level, press the O Key for at least one sec- Initial Setting Level ond.

  • Page 105: Alarm Outputs

    Alarm Outputs Section 3-9 8. Use the U and D Keys to set 45.0. 45.0 9. To return to the operation level, press the O Key. Note Proportional Action When PID constants I (integral time) and D (derivative time) are set to 0, con- trol is executed according to proportional action.

  • Page 106: Alarm Types

    Alarm Outputs Section 3-9 • This section describes the Alarm Type, Alarm Value, Upper-limit Alarm and Lower-limit Alarm parameters. 3-9-1 Alarm Types Set value Alarm type Alarm output operation Function When alarm value X When alarm value X is positive is negative Alarm function OFF Output OFF...
  • Page 107 Section 3-9 Alarm Outputs Set value Alarm type Alarm output operation Function When alarm value X When alarm value X is positive is negative Remote SP absolute This alarm type turns ON the value upper limit (See alarm when the remote SP (RSP) note 6.) is higher than the alarm value (X).

  • Page 108: Alarm Values

    Alarm Outputs Section 3-9 3-9-2 Alarm Values • Alarm values are indicated by “X” in the table on the previous page. When the upper and lower limits are set independently, “H” is displayed for Alarm Lower Limit al1l upper limit values, and “L” is displayed for lower limit values. •...
  • Page 109 Section 3-9 Alarm Outputs 6. Press the M Key to select the Alarm Value 1 parameter. Alarm Value 1 al-1 7. Use the U Key to set 10.0. al-1 10.0 PV Change Rate Alarm The change width can be found for PV input values in any set period. Differ- ences with previous values in each set period are calculated, and an alarm is output if the result exceeds the alarm value.
  • Page 110 RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES Relay Modules INSTALLATION INSTRUCTIONS APPLICATION SPECIFICATIONS The RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D are Electrical Ratings (See Table 3): microprocessor-based integrated burner controls for Voltage and Frequency: automatically fired gas, oil, or combination fuel single burner RM7895/RM7896: 120 Vac (+10/-15%), 50/60 Hz (± 10%). applications.
  • Page 111 RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES RELAY MODULES Location WARNING Fire or Explosion Hazard. Humidity Can cause property damage, severe injury, or Install the relay module where the relative humidity never death. reaches the saturation point. The relay module is designed to Follow applicable safety requirements when installing operate in a maximum 85% relative humidity continuous, a control on a burner to prevent death or severe injury.
  • Page 112 RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES RELAY MODULES Wiring Subbase 1. For proper subbase wiring and sequence chart, refer to Fig. 2 and 3. 2. For remote wiring of the Keyboard Display Module, refer to the Specifications for the Keyboard Display Module WARNING (65-0090), Network Interface Unit (63-2278), Data ControlBus Module™...
  • Page 113 RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES RELAY MODULES Q7800 FOR DIRECT SPARK IGNITION (OIL OR GAS) IGNITION TRANSFORMER LINE VOLTAGE ALARM MAIN VALVE BURNER MOTOR (BLOWER) (L1) BURNER CONTROLLER/LIMITS LOCKOUT INTERLOCK (INCLUDING AIRFLOW SWITCH) INTERMITTENT PILOT/IGNITION MAIN FUEL VALVE(S) IGNITION MASTER FLAME DETECTOR SWITCH (HOT) TIMED...
  • Page 114 RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES RELAY MODULES Q7800 FOR DIRECT SPARK IGNITION (OIL OR GAS) IGNITION TRANSFORMER LINE VOLTAGE ALARM BURNER MOTOR MAIN VALVE (BLOWER) (L1) BURNER CONTROLLER/LIMITS LOCKOUT INTERLOCK (INCLUDING AIRFLOW SWITCH). 10 SEC. INTERRUPTED PILOT/IGNITION MAIN FUEL VALVE(S) DELAYED (2ND STAGE) IGNITION MAIN VALVE...
  • Page 115 RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES RELAY MODULES Table 1. Recommended Wire Sizes and Part Numbers. Application Recommended Wire Size Recommended Part Numbers Line voltage terminals. 14, 16 or 18 AWG copper conductor, 600 volt insulation, TTW60C, THW75C, THHN90C. moisture-resistant wire. Keyboard Display Module 22 AWG two-wire twisted pair with ground, or five-wire.
  • Page 116 RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES RELAY MODULES Table 3. Terminal Ratings. Ratings Terminal Number Description RM7895/RM7896 EC7895 Flame Sensor Ground — — Earth G — — Earth Ground L2(N) Line Voltage Common — — Alarm 120 Vac, 1A pilot duty. 220-240 Vac, 1A pilot duty. Burner Motor 120 Vac, 9.8A AFL, 58.8 ALR (inrush).
  • Page 117 RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES RELAY MODULES STATIC CHECKOUT Equipment Recommended 1. Voltmeter (1M ohm/volt minimum sensitivity) set on the 0 to 300 Vac scale. After checking all wiring, perform this checkout before 2. Two jumper wires, no. 14 wire, insulated, 12 in. installing the EC7895A,C/RM7895A,B,C,D/RM7896A,B,C,D (304.8 mm) long with insulated alligator clips at both on the subbase.
  • Page 118 RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES RELAY MODULES Table 6. Static Checkout. Test Relay Module Test If Operation is Abnormal, Number Model Jumpers Voltmeter Normal Operation Check Items Listed Below — 1. Ignition spark (if ignition 1. Watch for spark or listen for buzz. transformer is connected to 2.
  • Page 119 RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES RELAY MODULES WIRING SUBBASE RUN/TEST (C,D ONLY) SWITCH H O N E Y W E LL RELAY MODULE CONFIGURATION JUMPERS PURGE TIMER SEQUENCE STATUS LED PANEL POWE R RESET PILOT BUTTON FLAM E MAIN ALARM CAPTIVE RESE T MOUNTING DUST...
  • Page 120 RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES RELAY MODULES 5. MAIN FLAME ESTABLISHING PERIOD (MFEP) Standby (RM7895C,D) The EC7895A,C/RM7895A,B,C,D;RM7896A,B,C,D is ready a. Airflow lockout feature is enabled and the airflow to start an operating sequence when the operating control switch opens. input determines a call for heat is present. The burner switch, b.
  • Page 121 RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES RELAY MODULES SETTINGS AND ADJUSTMENTS 1. The EC7895C, RM7895C,D, RM7896C,D has a delayed main valve that is energized once the RUN Selectable Site-Configurable Jumpers period is entered. 2. The relay module is now in RUN and remains in RUN The relay module has three site-configurable jumper options, until the controller input, terminal 6, opens, indicating see Fig.
  • Page 122 Bulletin 700-HR General Purpose Relays and Timing Relays Bulletin 700-HR • Dial Timing Relay • 5 A Contact Rating • 16 Programmable Timing Ranges • 100…240V AC Multi-Voltage Input • 24V AC/DC Dual Voltage Input • Tube Base Pin Style Terminals •...
  • Page 123 Bulletin 700-HR General Purpose Relays and Timing Relays Product Selection ➊ ➊ ➊ ➊ Bulletin 700-HR, -HRM, -HRC Multi-Function Multi-Range Dial Timing Relay with Pin Style Terminations Timing Timing Input Cat. No. Mode Range Voltage ON-Delay 11-Pin Terminations OFF-Delay 700-HR52TU24 ➋ 24V AC/DC 0.05 s.…60 h One Shot...
  • Page 124 Bulletin 700-HR General Purpose Relays and Timing Relays Accessories Description Pkg. Qty. Cat. No. Screw Terminal Tube Base Sockets — Panel or DIN Rail Mounting Guarded Terminal Construction 8-pin for use with DPDT Bulletin 700-HA relays, -HX digital timing relays, -HT 700-HN100 (ON-Delay) and -HRM, -HRC and -HV (Repeat Cycle) timing relays.
  • Page 125 Bulletin 700-HR General Purpose Relays and Timing Relays Accessories, Continued Description Pkg. Qty. Cat. No. Frame Adapter 700-HN130 For flush or door mounting of Bulletin 700-HR, -HRM and -HRC timing relays. Cat. No. 700-HN130 Protective Cover Helps prevent tampering of timing and mode settings. Provides a degree of 700-HN132 protection against water and dirt from entering the front of the relay.
  • Page 126 Bulletin 700-HR General Purpose Relays and Timing Relays Specifications ➊ ➊ ➊ ➊ Bulletin 700-HR, -HRM/-HRC Electrical Ratings Pilot Duty Rating ➋ NEMA C300 Rated Thermal Current (I 250V IEC, Rated Insulation Voltage (Ui) 300V UL/CSA Inductive Make Break 120V AC 15 A 1.5 A Contacts...
  • Page 127 Bulletin 700-HR General Purpose Relays and Timing Relays Specifications, Continued International Bulletin 700-HR, -HRM, -HRC USA/Canada 12 14 21 32 34 11 22 24 31 (G)(R) (G)(R) (G)(R) (G)(R) 12 14 21 32 34 12 14 21 32 34 11 22 24 31 11 22 24 31 (G)(R) (G)(R)
  • Page 128 Bulletin 700-HR General Purpose Relays and Timing Relays Timing Charts Bulletin 700-HR, -HRC, and -HRM Dial Timing Relay (T = Time Range 0.05 s…60 h) Bulletin 700-HR On-Delay (PO): Input power must be applied continuously. When a start T _ t signal is applied the timing cycle begins.
  • Page 129 Bulletin 700-HR General Purpose Relays and Timing Relays Approximate Dimensions Dimensions are shown in millimeters (inches). Dimensions are not intended for manufacturing purposes. 81.5 (3-7/32) 52.3 (19/32) (2-1/16) Power Mode (1-25/32) (1-57/64) Range Unit (1-25/32) (1/4) Cat. No. 700-HR…/-HRM…/-HRC… (1-57/64 Panel Cutout Cat.
  • Page 130 Low/High/Off • General Purpose & Watertight SERIES Hydramotor Actuator ® AH4E For use with V710 Gas Valve Body General Description The AH4E Hydramotors are three-position push-type, self- contained, electrohydraulic linear actuators featuring dual internal control valves for repeatable positioning. The low- fire position is factory set at the stroke midpoint, but can be field adjustable to any position between 15% and 100% of stroke.
  • Page 131 SERIES AH4E Specifications Catalog Number Applications 120V/60Hz, 110V/50Hz 240V/60Hz, 220V/50Hz On-Off Slow Opening (26 seconds Max) (Watertight) Standard AH4E102A AH4E104A Proof of closure AH4E102S AH4E104S On-Off Slow Opening (26 seconds Max) (General Purpose) Standard AH4E202A AH4E204A Proof of closure AH4E202S AH4E204S On-Off Fast Opening (14 seconds Max) (Watertight) Standard...
  • Page 134 2-Way Normally Closed SERIES V710(B) Valve Body V710(B) Pipe Sizes 3/4" to 3" NPT General Description These 2-way normally closed valve bodies are designed for on/off control of commecial or industrial gas burners. The V710(B) is designed exclusively for use with the AH(E) Hydramotor actuator.
  • Page 135 SERIES V710(B) Specifications (English units) Operating Pressure Fluid Differential (psi) Temp.˚F Catalog Numbers Flow Pipe Orifice Quick Opening Approx. Capacity Size Size Flow Capacity Quick w/Valve Seal Const. Shipping /hr x Btu/hr. x (ins.) (ins.) Factor Min. Max. Min. Max. Opening Trim Overtravel Trim Ref.
  • Page 136 SERIES V710(B) Dimensions inches (mm) Const. Ref. ins. 3.48 1.46 5.39 ins. 6.09 3.83 1.89 6.32 ins. 7.80 5.28 2.38 7.94 ins. 13.88 7.40 Const. Ref. 1-3 1/8" NPT [25] DOWNSTREAM PIPE PLUG 2 PLACES 1/8" NPT UPSTREAM PIPE PLUG 2 PLACES FLOW Flange Adapters...
  • Page 137 TWO WAY - NORMALLY CLOSED V710 Valve Body V710 SERIES Pipe Sizes 3/4” to 3” NPT, 4” Flange General Description Linear w/Valve Seal Overtravel Trim: (Suffix V25) These 2 way normally closed globe For applications where both type valve bodies are designed valve seal overtravel and flow for on/off or proportional control of control are required.
  • Page 138 Trim Types Quick Opening with Quick Opening Trim Linear with Linear Trim Valve Seal Overtravel Trim (Standard) Valve Seal Overtravel Trim Suffix “V15” Suffix “V22” Suffix “V25” Dimensions - inches Shipping Dimensions (inches) 3/4” - 3” NPT Weight Pipe (lbs) 5.78 1.95 2.64...
  • Page 139 Low Pressure Direct Acting Gas Shutoff Valves SERIES K3A4 3/8" to 1" NPT Features • 2 way Normally Closed operation. • Die-cast aluminum bodies. • For positive shutoff on pilot or main gas lines of commercial and industrial gas burners. •...
  • Page 140 SERIES K3A4 Specifications Operating Pressure Differential Capacity Catalog Number (psi) Watt Rating/ Pipe Orifice Class of Coil Size Size Flow 24 V 110-120 V 220-240 V Constr. Insulation (ins.) (ins.) Factor Btu/hr Min. Max. 60 Hz. 50-60 Hz. 50-60 Hz. Ref.
  • Page 141 High Pressure Pilot Operated Gas Shutoff Valves SERIES K3A6 3/4" to 1 " NPT Features • 2 way Normally Closed operation. • Die-cast aluminum bodies. • For positive shutoff on pilot or main gas lines of commercial and industrial gas burners. •...
  • Page 142 SERIES K3A6 Specifications Operating Pressure Differential Fluid & Ambient Capacity (psi) Temperature ˚F Catalog Number Watt Rating/ Pipe Orifice Class of Coil Size Size Flow 24 V 110-120 V 220-240 V Constr. Insulation (ins.) (ins.) Factor Btu/hr Min. Max. Min. Max.
  • Page 143 OPERATION Service Notice Normally Closed: Valve is closed when solenoid is Except for coil replacement, the Series K3A6 and K3A7 are de-energized; open when energized. not repairable. When any performance problems are detected during routine inspection, replace valve immediately. Note: No minimum operating pressure differential required. DESCRIPTION INSTALLATION Series K3A6 and K3A7 valves are 2-way normally closed...
  • Page 144 Preventive Maintenance S Prepare and follow a routine inspection schedule based on the media, environment, and frequency of use. This should include periodic internal and external leakage checks. S Keep the medium flowing through the valve as free from dirt and foreign material as possible. S While in service, the valve should be operated at least once Wiring a month to ensure proper opening and closing.
  • Page 145 4. Shut off the upstream manual gas cock and de-energize valve. Remove the plug from the leak test tap or downstream pressure tap in the valve body. Connect leak test equipment with the test petcock in the closed position (Figure 3). 5.
  • Page 146 ORDERING INFORMATION FOR COIL REPLACEMENT When ordering coils, specify valve catalog number, voltage and coil number, if possible. Troubleshooting Chart Solenoid coil short, or wrong voltage. Check coil voltage. Replace solenoid coil. Valve operation is sluggish Damaged plunger assembly. Replace valve. Dirt or other foreign matter restricting Replace valve and install strainer operation of valve.
  • Page 147 Direct Acting Pilot Gas Shutoff Valves ® SERIES SV311 1/8" to 3/8" NPT Features • 2 way normally closed operation. • For gas pilot control of commercial and industrial gas burners. • Direct lift with resilient soft seating for tight shut-off. •...
  • Page 148 ® SERIES SV311 Specifications Operating Pressure Differential Capacity Catalog Number (psi) Watt Rating/ Pipe Orifice Class of Coil Size Size Flow 24 V 110-120 V 220-240 V Constr. Insulation (ins.) (ins.) Factor Btu/hr Min. Max. 60 Hz. 50-60 Hz. 50-60 Hz. Ref.
  • Page 149 Express Catalog 8210 General Service Solenoid Valves Pilot Operated • Brass or Stainless Steel Bodies F e a t u r e s • Wide range of sizes • High Flow Valves for liquid, and air/inert gas service. • Industrial applications include: - Car wash - Laundry equipment - Air compressors...
  • Page 150 Express Catalog 8262 General Service Solenoid Valves Direct Acting • Brass or Stainless Steel Bodies F e a t u r e s • Reliable, proven design. • Small poppet valves for tight shutoff. • Mountable in any position. • Brass body construction for general atmospheres; Stainless Steel for corrosive atmospheres.
  • Page 151 Gas Appliance Pressure Regulators Straight-Thru-Flow Design RV52, RV53, RV61, RV81, RV91, RV111, and RV131 1/2", 3/4", 1", 1¼", 1½", 2", 2½", 3" & 4" design certified Maximum Pressure EMERGENCY EXPOSURE LIMITS (Maxitrol Tested) GAS CONTAINMENT EXPOSURE LIMITS* AMBIENT TEMPERATURE LIMITS S-T-F Series GASES:...
  • Page 152 Straight-Thru-Flow Design RV52, RV53, RV61, RV81, series RV91, RV111, and RV131 FEATURES • • • • • BENEFITS • • • • • ® Teflon is a registered trademark of DuPont Corporation. NOTE: All Maxitrol appliance regulators should be installed in accordance with Maxitrol’s “Safety Warning”...
  • Page 153 Capacities and Pressure Drop CAPACITIES—expressed in CFH (m /h)—0.64 sp gr gas P„q……‡„qÂ8„‚ ¤u€itq…‰iÂyhg„ Gpqx 5A5 ÂÂH‡yhq„Âg€p ÂPu‚qÂSu’q    !  "  #  $  %  &  ' "  Â  "#  #   "...
  • Page 154 Dimensions and Spring Ranges RV81 & 91 RV52 & 53 RV61 DIMENSIONS*—inches (millimeters) RV111 Model & Call-Outs Vent Swing Illustration Radius Number 1/8" 3.25 1.25 RV52 (91) (124) (81) (83) (32) 1/8" 3.75 RV53 (99) (132) (95) (99) (33) 1/8" RV61 (122) (164)
  • Page 155 BULLETIN MS-2032 - 8/00 Gas Appliance Pressure Regulators Rubber Seat Poppet Models...
  • Page 156 MAXIMUM INLET PRESSURE: RV/CV Series— RV12, RV20, RV47, RV47A, RV48 & CV47, CV47A ... 1/2 psi (34 mbar) RV12, RV20, RV47, RV48, RV20L ......2 psi (140 mbar) and CV47 EMERGENCY EXPOSURE LIMITS: RV12, RV20, RV47, RV47A, RV48...
  • Page 157 Specifications RV47, 47A RV12 CV47, 47A RV20 RV48 *Dimensions are maximums and are to be used only as an aid in designing clearance for the valve. Actual production dimensions may vary somewhat from those shown. DIMENSIONS*: inches (milimeters) Call-Outs Swing Radius Model Vent Tap...
  • Page 158 SPRING SELECTION CHART — inches water column (millibars) Standard Model Other Springs Available Spring 2.8” to 5.2” RV12 (6.9 to 13) 2.8” to 5.2” RV20 (6.9 to 13) CV47 2.8” to 5.2” RV47 (6.9 to 13) 3.0” to 6.0” RV48 (7.5 to 15) CAPACITY CHART —...

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