Monessen Hearth EYF24, EYF18 Checking GAS Pressure, NPT Test Plug, Test Port OUT

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CHECKING GAS PRESSURE

WARNING WARNING

Connecting directly to an unregulated propane/LPG tank can cause an explosion.

The heater gas inlet connection is a 3/8" NPT at the valve. All units have the inlet connection on the right side, when you face the unit. To connect from the opposite side, route the pipe under the rear portion of the unit.

When tightening up the joint to the valve, hold the valve securely to prevent movement.

Test all gas joints from the gas meter to the heater valve for leaks using a gas analyzer or soap and water solution after com- pleting connection. DO NOT USE AN OPEN FLAME.

Check the gas pressure with the appliance burning and the control set to HIGH.

MANUAL CONTROL (Figure 14)

The pressure regulator is preset and locked to dis- courage tampering. If the pressure is not as specified, replace the regulator with the correct part from the parts list in this manual.

Remove 1/8" NPT plug, located on side of regulator body. Install fitting and tubing to pressure gauge. After taking pressure reading, reinstall test plug. Check for gas leaks.

MILLIVOLT CONTROL (Figure 15)

The valve regulator controls the burner pressure which should be checked at the pressure test point.

Turn captured screw counter clockwise two or thre turns and then place tubing to pressure gauge over test point (Use test point “OUT” closest to control knob). After taking pressure reading, be sure and turn captured screw clockwise firmly to re-seal. Do not over torque. Check for gas leaks.

NPT Test Plug

Figure 14 - Pressure Test Point Location

Manual Control

Test Port “OUT”

Figure 15 - Pressure Test Point Location

Millivolt Control

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Contents Unvented GAS LOG Heater or Vented Decorative Appliance What to do if YOU Smell GASContents Important Safety Information InstallerOwner Never connect unit to private What YOU will Need for Installation Getting StartedMake Sure YOU have Received ALL Parts Product Features and Specifications Natural GASPROPANE/LPG General Installation Information CodesAdequate Combustion and Ventilation AIR Counter Fireplace L1 = 151/2 Ft., L2 = 12 Ft., W = 12 Ft., H = 8 FtFireplace and Hearth Dimensions Placement in a Fireplace with a Restrictive Barrier Depth of fireplace/fireboxClearances and Height Requirements Sidewall and Ceiling ClearancesClearances and Height Requirements Minimum Mantel Clearance With Hood Floor Clearance Minimum Clearance above Combustible FlooringBefore Installing the Appliance Installing Vented ApplicationsBefore Fully Installing the Unit Damper Stop InstallationPlacing and Securing Appliance Installing Vented ApplicationAssembly Procedure Horizontal Grate Bar Hooks for Screw Middle Hole for AnchorConnecting the GAS Flexible Tube Manual Shutoff Gas Supply Inlet ValveChecking GAS Pressure NPT Test PlugTest Port OUT Electrical Wiring Millivolt Connecting Optional Wall Switch or ThermostatRequire 110 VAC to Operate Checking System Operation Connecting Optional Remote ReceiverFollow Instructions Supplied with the Remote Remote Receiver Velcro PadsPlacing the Decorative Rock LOG PlacementInstalling EYF24-F LOG Unit on Burner Top Left Log Front Log Top Right Log Main Log TabsInstalling EYF18-R LOG SET on Unit Rear Log Middle Log #2Top Log #4 Front Log #3 Front Top Right Log #4 Log #3 Installing EYF24-R or EYF30-R LOG SET on UnitRear Log #1 Middle Log Top Left Log #5Millivolt Control Flame AppearanceChecking the Pilot Flame Manual ControlChecking the Burner Flame Operating InstructionsOperating Instructions For Your Safety Read Before LightingPiezo Ignitor Switch Control KnobsManual Control Lighting Instructions To Turn OFF HeaterOn/Off Switch Piezo Hi/Lo Control On/Off/Pilot Control Millivolt Control Lighting InstructionsOperating Instructions and Cleaning and Servicing Cleaning and ServicingMatch Lighting Instructions Troubleshooting Observed Prob Possible Cause RemedyODS/pilot lights, but flame Illustrated Parts Breakdown Replacement Parts List Replacement Parts are Available Through Your RetailerEYF24-F EYF18-RCarbon Monoxide Detector Requirements Basic Warranty Lifetime WarrantyFive Year Warranty Mhsc
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EYF24, EYF18 specifications

The Monessen Hearth EYF24 and EYF18 represent a perfect blend of style, efficiency, and innovative technology in the world of vent-free gas fireplaces. Designed for homeowners who desire warmth and ambiance without the complexities of traditional fireplaces, these units stand out as reliable heating solutions.

The EYF24 and EYF18 are designed with a sleek and modern aesthetic, making them suitable for a variety of home decors. Their compact size allows for versatile installation options, making them ideal for both small spaces and larger living areas. With a focus on ease of use, both models come equipped with user-friendly controls, enabling homeowners to adjust the flame height and heat output effortlessly.

One of the standout features of these Monessen fireplaces is their vent-free technology. This allows the units to operate efficiently without the need for a chimney or flue, which means less installation cost and hassle. The design also facilitates greater flexibility in placement, as they can be installed in virtually any room. Whether you want to enhance a cozy den or add warmth to a larger gathering space, the EYF24 and EYF18 are adaptable to your needs.

Another notable characteristic is their high-efficiency rating. Both models utilize advanced burner technology that maximizes heat output while minimizing energy consumption. This capability not only ensures a comfortable indoor environment but also helps in reducing heating costs. The units are designed to generate realistic flames, creating an inviting ambiance that can be enjoyed year-round.

In terms of safety, Monessen has integrated several features into the EYF24 and EYF18. The oxygen depletion sensor (ODS) automatically shuts off the unit if oxygen levels fall below safe limits, providing peace of mind for homeowners. Additionally, the units are designed to operate quietly, allowing for an undisturbed living experience.

Customization options also abound with these models. Homeowners can select from a range of decorative media, including logs, stones, and glass, to personalize their fireplace's appearance. This flexibility ensures that each installation can be uniquely tailored to match individual tastes and home styles.

In conclusion, the Monessen Hearth EYF24 and EYF18 fireplaces are excellent choices for anyone seeking a stylish, efficient, and safe heating solution. With their modern design, vent-free technology, and user-friendly features, they offer an inviting and warm atmosphere that can enhance any home environment.
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