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Use of this Equipment Information page will help you identify your equipment in the case that you need to notify the company. For this reason, this information should be filled out and kept on record. Equipment Information Model Number: Serial Number: Date Purchased: Dealer Name and Phone Number:...
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Chapter 9 Parts List ..........................75 VariFlame EDGE Controller Parts ....................75 Switch and Probe Parts ......................76 Gas Parts ..........................77 Motor and Blower Wheel Parts ....................78 GSI Group, LLC Limited Warranty ...................79 Pneg-2092 VariFlame Heater with Edge Connect...
Safety Precautions Topics Covered in this Chapter ▪ Safety Guidelines ▪ Cautionary Symbol Definitions ▪ Safety Precautions ▪ Safety Decals ▪ Safety Sign-off Sheet Safety Guidelines Safety guidelines are general-to-specific safety rules that must be followed at all times. This manual is written to help you understand safe operating procedures and problems that can be encountered by the operator and other personnel when using this equipment.
Chapter 1: Safety Precautions Cautionary Symbol Definitions Cautionary symbols appear in this manual and on product decals. The symbols alert the user of potential safety hazards, prohibited activities and mandatory actions. To help you recognize this information, we use the symbols that are defined below. Table 1-1 Description of the different cautionary symbols Symbol Description...
Chapter 1: Safety Precautions Safety Precautions Use Personal Protective Equipment • Use appropriate personal protective equipment: Respiratory Foot Protection Protection Protection Hearing Head Fall Protection Protection Protection Hand Protection • Wear clothing appropriate to the job. • Remove all jewelry. •...
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Chapter 1: Safety Precautions Follow Safety Instructions • Warning: If the information in the manual is not followed exactly, a fire or explosion can result, causing property damage, personal injury or loss of life. • Carefully read all safety messages in this manual and safety signs on your machine.
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Chapter 1: Safety Precautions Maintain Equipment and Work Area • Do not attempt maintenance or repairs on the heater unless you are competent to do so. Understand service procedures before doing work. • Use only genuine Cumberland/AP parts when maintaining the heater.
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Chapter 1: Safety Precautions Install and Operate Gas-Fired Equipment Properly • Gas-fired equipment should be installed by a qualified pipe fitter and must conform with local codes. • For Canada: The equipment shall be installed in accordance with the Natural Gas and Propane Installation Code, CSA B149.1, or the Propane Storage and Handling Code, CSA B149.2, or applicable provincial regulations, which should be carefully followed in all cases.
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Chapter 1: Safety Precautions Install and Operate Electrical Equipment Properly • The electrical connections and grounding of the appliance shall be in compliance with the National Electric Code ANSI/ NFPA 70 for the United States or the Canadian Electrical Code for Canada, as well as all local and state codes. •...
Chapter 1: Safety Precautions Safety Decals The safety decals on your equipment are safety indicators which must be carefully read and understood by all personnel involved in the installation, operation, service and maintenance of the equipment. Location Decal No. Decal Description Warning Electrical Hazard Inside door...
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Chapter 1: Safety Precautions Location Decal No. Decal Description On Door DC-2429 Caution Warning: Hot Surface On Door DC-2430 To replace a damaged or missing decal, contact us to receive a free replacement. GSI Decals 1004 E. Illinois St. Assumption, IL 62510 Tel: 1-217-226-4421 Pneg-2092 VariFlame Heater with Edge Connect...
Chapter 1: Safety Precautions Safety Sign-off Sheet Below is a sign-off sheet that can be used to verify that all personnel have read and understood the safety instructions. This sign-off sheet is provided for your convenience and personal record keeping. Date Employee Name Supervisor Name...
Specifications Topics Covered in this Chapter ▪ VariFlame vapor propane specifications ▪ VariFlame natural gas specifications VariFlame vapor propane specifications Maximum input 250,000 (BTUH) Minimum input 50,000 (BTUH) Ventilation air required to support combustion 1,050 (CFM) Inlet gas supply pressure maximum 13.5 in.
Chapter 2: Specifications VariFlame natural gas specifications Maximum input 250,000 (BTUH) Minimum input 50,000 (BTUH) Ventilation air required to support combustion 1,050 (CFM) Inlet gas supply pressure maximum 13.5 in. W.C. Inlet gas supply pressure minimum 7.0 in. W.C. Burner manifold pressure maximum 10.0 in.
System Overview Topics Covered in this Chapter ▪ User Interface ▪ Typical Controller Connections ▪ Heater component functions ▪ Burner control module and sequence of operation ▪ Operation modes Pneg-2092 VariFlame Heater with Edge Connect...
Chapter 3: System Overview User Interface Description Item Press to go up in the menu or to increase a parameter value. Press to go down in the menu or to decrease a parameter value. Enter function in a menu or to edit a parameter. 24Vdc supply state Lock mode activation state EDGE Automation network state...
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Chapter 3: System Overview Figure 3-1 User Interface Flow Chart Pneg-2092 VariFlame Heater with Edge Connect...
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Chapter 3: System Overview Figure 3-2 User Interface Flow Chart Pneg-2092 VariFlame Heater with Edge Connect...
Chapter 3: System Overview Typical Controller Connections VariFlame heaters with EDGE Connect can be installed to existing controllers or to an EDGE controller. Figure 3-3 Controller connections using existing control Figure 3-4 Controller connections with EDGE Connect Pneg-2092 VariFlame Heater with Edge Connect...
Chapter 3: System Overview Heater component functions Figure 3-5 VariFlame Components 1 — Blower motor and wheel assembly 5 — Flame Probe 2 — High Limit Switch 6 — Control Board 3 — Air Proving Switch 7 — Throttle Valve 4 —...
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Chapter 3: System Overview state when the blower is on, the heater will go into lockout mode. Typical sources of air proving switch faults are dirty blower wheel, restricted inlet, restricted outlet, and a dirty air proving switch. Igniter (4) The igniter is a hot surface heating element used to initiate combustion.
Chapter 3: System Overview Burner control module and sequence of operation Figure 3-6 VariFlame Sequence of Operation Pneg-2092 VariFlame Heater with Edge Connect...
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Chapter 3: System Overview Power up and Initialization When you first turn on the VariFlame, it performs a self-check routine before starting up. If the following problems are detected, the controller goes into lockout mode: • A memory issue • AC frequency issue on the main sector •...
Chapter 3: System Overview Operation modes Variable input (0-10V or 4-20mA) mode In one of these modes, the VariFlame controller receives a 0-10V or 4-20mA signal from an external pro- portional controller indicating the opening percentage of the output valve. The input is linearly remapped to a percentage which is then sent to the valve.
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Chapter 3: System Overview Learning — Upon reception of an 'ON' signal, the module starts a learning cycle to determine start and stop temperatures if they are unknown. The learning cycle may occur for two different reasons: • The module is starting Legacy mode for the first time and has no idea what the start and stop tem- peratures are.
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Chapter 3: System Overview • The unit is powered off. Once rebooted, the module will continue operating with the previously con- figured operation mode. Should the operation mode's inputs still be inoperative, the module will fall back into failsafe. • You intentionally exit Failsafe mode from the user interface (by selecting a new operation mode). Should the new operation mode's inputs be inoperative, the module returns into Failsafe mode.
Installation Topics Covered in this Chapter ▪ Installing the air diverter ▪ Installing for recirculating operation (indoor) ▪ Pipe sizing guidelines ▪ Wiring Diagrams and Schematics Installing the air diverter Air diverters are shipped flat and can be bent to direct the heated air as it exits the heater. 1.
Chapter 4: Installation Figure 4-2 Installing the air diverter 2 — Air Diverter 3 — Loosen screws Installing for recirculating operation (indoor) Before You Begin • Make sure the heater location has a minimum clearance from combustibles of 12 in. from the top, bottom and sides of the heater.
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Chapter 4: Installation 7. Check all gas connections for leaks using a leak detector solution and repair any gas leak before placing the heater into service. 8. Install a sediment trap and a manual shut off valve to the heater’s gas inlet. 9.
Chapter 4: Installation Figure 4-4 Gas and Electrical Connections 1 — Sediment trap 4 — Vent to outside 7 — Regulator 9 — Heater 2 — Electrical cord 5 — Gas hose 8 — Shut-Off valve 10 — Air diverter 3 —...
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Chapter 4: Installation Figure 4-5 Example Piping System • Determine the HVR value for each pipe section of the system. No. Of Pipe Section HVR Calculation HVR Value Heaters BTUH BTUH 4 x 40,000 160,000 4 x 12 2 x 40,000 80,000 2 x 12 1 x 40,000...
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Chapter 4: Installation are in thousands of BTUH's). The next larger value of 72 (21) is read from the table, corresponding to 72,000 BTUH (21 kW). • Follow the row leftward until you reach the columns labeled 'Internal Diameter' and 'Nominal pipe size'.
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Chapter 4: Installation Table 4-3 Natural Gas (NG) (cont'd.) Maximum Capacity Of Pipe In Thousands Of BTU per Hour Nominal Internal Natural Gas (Methane) @ Pressure Drop Of 0.5 in w.c. (0.2 mbar) Iron Pipe Dia. Values listed are for 0.6 sp.gr. based on Heat Of Combustion of 1000 BTU/cu .ft Size, (IPS) Length Of Pipe, Feet (multiply ft by 0.3 to convert to meter)
Chapter 4: Installation Wiring Diagrams and Schematics Use the wiring diagrams and schematics to connect components to the VariFlame Edge controller. Make sure all power sources are disconnected and locked out before performing any maintenance to the equipment. DANGER Figure 4-6 Inside VariFlame Controller Pneg-2092 VariFlame Heater with Edge Connect...
Controller Settings Topics Covered in this Chapter ▪ The Main Screen ▪ Turning OFF the heater ▪ Setting the parameters for the heater ▪ Setting the parameters for a Variable Input Mode ▪ Setting the parameters for Standalone Mode ▪ Setting the parameters for Legacy Mode ▪...
Chapter 5: Controller Settings Turning OFF the heater You can turn off the heater using the VariFlame control. To turn off the heater: 1. On the controller, push the Up or Down button until the Operation Modes Menu appears, then push the Enter button.
Chapter 5: Controller Settings 1. On the controller, push either the Up or Down button until the Settings Menu appears, then push the Enter button. 2. Set the parameters to the desired temperatures using the UP, Down, and Enter buttons. Figure 5-3 Settings Menu Setting the parameters for a Variable Input Mode There are two Variable Input Modes, either a 0–10V or 4 –20mA.
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Chapter 5: Controller Settings Failsafe recovery — Defines how long the VariFlame should operate in failsafe mode before looking for a signal coming from the main controller. The period starts as soon as the failsafe mode is entered. At the end of the recovery period, VariFlame will stop and wait for a signal from the main controller.
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Chapter 5: Controller Settings Figure 5-4 Variable Operations (0–10V or 4–20mA) Pneg-2092 VariFlame Heater with Edge Connect...
Chapter 5: Controller Settings Setting the parameters for Standalone Mode You do not need a controller to use the VariFlame’s Standalone Mode. This mode accommodates one or two LED temperature probes. The heater will maintain the temperature set in the heater burner control unit (BCU) at the time of installation.
Chapter 5: Controller Settings Figure 5-5 Standalone Menu Setting the parameters for Legacy Mode The on/off signal from a legacy controller will trigger the heater. The VariFlame unit will synchronize the target temperature with the temperature set point used in the legacy control to maintain a consistent room temperature.
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Chapter 5: Controller Settings Failsafe recovery — Defines how long the VariFlame should operate in failsafe mode before looking for a signal coming from the main controller. The period starts as soon as the failsafe mode is entered. At the end of the recovery period, VariFlame will stop and wait for a signal from the main controller.
Chapter 5: Controller Settings Figure 5-6 Legacy Mode Enabling a second probe When using Standalone modes, each heater can connect to two temperature probes. You can access these settings through the Temperature Probe Menu. What You Should Know You have to cycle through all of the parameters and confirm any changes at the end of the cycle. The Parameters Submenu contains the following parameters: Second probe status —...
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Chapter 5: Controller Settings 3. Push the Up or Down button to choose enable or disable for a second probe, then push Enter to select. 4. Push the Up or Down button to enter the Probe Discard Offset. NOTE: The default offset is 5.0°. Pushing the up and down buttons modifies the offset in 0.1° incre- ments.
Chapter 5: Controller Settings Testing the LED probes with blink mode The blink mode will allow you to perform a visual test of the LED temperature probes. 1. On the controller, push either the Up or Down button until the Temperature Probe Menu appears, then push the Enter button.
Chapter 5: Controller Settings Checking the System Status If a problem occurs with the system, a warning triangle will appear on the main screen. To get a descrip- tion of the error source, you can access the system status. To check the System Status: 1.
Startup and Operation Topics Covered in this Chapter ▪ Pre-startup inspections ▪ Emergency heater shutdown ▪ Normal heater shutdown ▪ Starting the heater ▪ Operating the burner ▪ Adjusting the heater output Pre-startup inspections • Look for any physical damage from shipping or installation that can cause the heater not to operate. •...
Chapter 6: Startup and Operation 4. Close the main gas supply valve. 5. Disconnect the main power supply. Starting the heater Before You Begin Make sure the heater has been installed properly by qualified gas and electrical service personnel. 1. Perform all pre-startup inspections. 2.
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Chapter 6: Startup and Operation Figure 6-1 Heater operation depending on output settings 1 — Heater kBtu output adjusted to high. 2 — Heater kBtu output adjusted to low. 3 — Heater kBtu output correctly adjusted. Turn off all power sources before performing any adjustments to equipment. Follow all safety procedures at all times.
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NOTES Pneg-2092 VariFlame Heater with Edge Connect...
Service and Maintenance Topics Covered in this Chapter ▪ Cleaning the heater ▪ Guidelines for checking gas pressure ▪ Checking the valve inlet pressure ▪ Checking the valve output pressure ▪ Replacing the motor and fan wheel ▪ Replacing the air proving switch ▪...
Chapter 7: Service and Maintenance • Close the fuel supply valve to the heater inlet. • Open the burner access panel and clean any dirt or debris from the gas control valve. What You Should Know Gas pressure entering the gas valve is Inlet Pressure. Gas pressure flowing out of the gas valve is Burner Manifold pressure.
Chapter 7: Service and Maintenance NOTE: Pressure test kit must read up to 15 in. w.c. 4. Turn the heater on. 5. Open the gas valve and read the gas pressure. 6. When testing is complete, reinstall the threaded plug into the outlet pressure tap of the valve. Failure to replace this plug can cause serious injury and death.
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Chapter 7: Service and Maintenance Figure 7-1 Control mounting bracket 1 — Control mounting bracket 2 — Fan housing 3 — Screw Figure 7-2 Motor and fan wheel 2 — Fan housing 3 — Screw 4 — Motor and fan assembly Pneg-2092 VariFlame Heater with Edge Connect...
Chapter 7: Service and Maintenance Replacing the air proving switch Before You Begin • Disconnect all power sources to the heater. • Turn off the gas supply. To remove the air proving switch: 1. Disconnect the two wires attached to the air proving switch. 2.
Chapter 7: Service and Maintenance Figure 7-4 Removing the air proving switch 2 — Mounting plate 6 — Bolt 3 — Air proving switch 7 — Nut 4 — Air proving mounting bracket Replacing the Temperature High Limit Switch Before You Begin •...
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Chapter 7: Service and Maintenance Figure 7-5 Temperature high limit switch bracket 1 — Loosen screw 4 — Air proving mounting bracket 2 — Mounting plate 5 — High limit switch 3 — Air proving switch Figure 7-6 Temperature high limit switch 1 —...
Chapter 7: Service and Maintenance Replacing the Flame Probe Before You Begin Both the igniter and flame probe can still be hot if the heater was in operation. Allow heater to cool completely before performing any maintenance. CAUTION • Disconnect all power sources to the heater. •...
Chapter 7: Service and Maintenance Replacing the Ignitor Before You Begin Both the igniter and flame probe can still be hot if the heater was in operation. Allow heater to cool completely before performing any maintenance. CAUTION • Disconnect all power sources to the heater. •...
Chapter 7: Service and Maintenance Figure 7-10 Ignitor 1 — Probe mounting bracket 3 — Ignitor 2 — Screw 4 — Flame sensor Replacing the control board Before You Begin • Disconnect all power sources to the heater. • Turn off the main gas supply. To remove the control board: 1.
Chapter 7: Service and Maintenance Figure 7-11 Control Board Cover 7 — Screw 8 — Control cover Figure 7-12 Control Board 7 — Screw 8 — Control board Replacing the gas valve Before You Begin Pneg-2092 VariFlame Heater with Edge Connect...
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Chapter 7: Service and Maintenance Turn off all gas supply before performing any maintenance on the gas supply lines. Failure to follow these instructions can result in bodily injury or death. WARNING • Disconnect all power sources to the heater. •...
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Chapter 7: Service and Maintenance Figure 7-13 Remove supply valve 3 — Supply line 6 — Gas valve Figure 7-14 Gas valve removal 6 — Gas valve Pneg-2092 VariFlame Heater with Edge Connect...
Troubleshooting Topics Covered in this Chapter ▪ Troubleshooting ▪ LED meanings Troubleshooting Problem Solution The VariFlame controller Verify if the controller is powered up does not communicate on Verify if there are activities on the bus communication by looking at the activities of the EDGE network the LEDs: AUTO-RX, AUTO-TX, SAFE-RX, SAFE-TX.
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Chapter 8: Troubleshooting Error type Description 24VAC Failure Cause : BCM failed to detect AC network transition for more than 100ms at run time Solution : Power cycle the VariFlame AC Frequency Not Cause : BCM was not able to detect and measure AC frequency at startup Detected Solution : Power cycle the VariFlame Air Valve Shorted Pins...
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Chapter 8: Troubleshooting wiring for open circuit. Verify sail switch continuity with a multimeter by closing it manually No Airflow Detected Cause : sail switch did not close in the 4 seconds following the power up of the blower Solution : Verify that the fan motor is able to start. Verify wiring to the fan’s motor. Verify that nothing prevents sail switch to go to close position.
Chapter 8: Troubleshooting Watchdog reboot Cause: an internal unexpected reset occurs Solution : Power cycle the VariFlame. Winding down failure Cause : sail switch did not went off in the 4 seconds following the power off of the Solution: Verify that the fan motor is able to stop. Verify wiring to the fan’s motor. Verify that nothing prevents sail switch to go to open position.
Parts List Topics Covered in this Chapter ▪ VariFlame EDGE Controller Parts ▪ Switch and Probe Parts ▪ Gas Parts ▪ Motor and Blower Wheel Parts VariFlame EDGE Controller Parts Figure 9-1 VariFlame EDGE Controller Parts Item Part Description VF3-1055 VariFlame Variable Rate Replacement Display VF3-1054 VariFlame Variable Rate Replacement Heater Control Board...
Chapter 9: Parts List Switch and Probe Parts Figure 9-2 Switch and Probe Parts Item Part Description 3001-1740 Switch Micro with Sail Lever V3l 3005-0111 TSTAT TDISC 60T15 310D Airstream VF3-1025 VariFlame Variable Rate Heater Control VF1-3004 Hot Surface Igniter Assembly VF1-3002 Flame probe assembly Pneg-2092 VariFlame Heater with Edge Connect...
Chapter 9: Parts List Gas Parts Figure 9-3 Gas Parts Item Part Description VF3-1022 (LP) Gas Valve, VariFlame Variable Rate, LP VF3-1023 (NG) Gas Valve, VariFlame Variable Rate, NG VF3-1013 Ball Valve, 1/4 Mnpt x 1/4 Fnpt, Compact VF2-3009 (LP) VariFlame Orifice, Propane VF2-3010 (NG) X VariFlame Orifice, Natural Gas...
Chapter 9: Parts List Motor and Blower Wheel Parts Figure 9-4 Motor and Blower Wheel Parts Item Part Description 20-5099D Motor, 1/3HP, 1 Ph, 120V, 60 Hz / C225m 20-5011X Wheel, Blower / Large - C225m 50 Hz Pneg-2092 VariFlame Heater with Edge Connect...
Chapter 9: Parts List GSI Group, LLC Limited Warranty The GSI Group, LLC (“GSI”) warrants products which it manufactures to be free of defects in materials and workmanship under normal usage and conditions for a period of 12 months after sale to the original end-user or if a foreign sale, 14 months from arrival at port of discharge, whichever is earlier.
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