Monessen Hearth DLX18, GLX28 Thermostatic Control Lighting Instructions, Rotation of Control Knob

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Operate unit at higher setting until desired room temperature is achieved.
At the desired temperature, slowly turn the knob clockwise and stop rotating when flame disappears.
Thermostat is now set to maintain the current room temperature. As the room temperature decreases, the thermostat valve will open to ignite the front and rear burner.
When the temperature reaches its set point (knob position), the thermostat valve will again shut off the front and rear burner.
This is the normal cycle of the heater.

OPERATING INSTRUCTIONS

THERMOSTATIC CONTROL LIGHTING INSTRUCTIONS

1.STOP! Read the safety information .

2.Make sure the manual shutoff valve is fully open.

3.This heater is equipped with an ignition device (piezo) which automatically lights the pilot.

4.Refer to Figure 28, page 26 for the location of the piezo ignitor and control knob. Turn control knob clock-

wise to the OFF position.

5.Wait 5 minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow safety instructions under “WHAT TO DO IF YOU SMELL GAS”, page 26. If you do not smell gas, go to the next step.

6.Turn the gas control knob counterclockwise to the IGN position. See Figure 33. Push in and hold control knob for 5 seconds.

7.With the control knob pushed in and held, push and release the piezo ignitor button to light the ODS pilot. The pilot is located on the right side of the heater, behind the front log and in front of the main burner. If piezo ignitor does not light the pilot, refer to “MATCH LIGHTING INSTRUCTIONS”, page 30.

8.Hold the control knob in for an additional 10 seconds to prevent the ODS pilot from shutting off the gas while the thermocouple is warming up.

9.Release the control knob.

•If the knob does not pop out when released, stop and immediately call your service technician or gas supplier.

•If the ODS pilot will not stay lit after several tries, push and turn the control knob clockwise to OFF. Release and wait 15 seconds. Repeat steps 6 through 9.

10.Turn control knob to any position between LOW and HIGH. The knob position controls the thermostat temperature. Refer to Figure 33.

11.The heater is now in proper operation. The following procedure should be used to achieve thermostatic control of the desired room temperature.

Rotate

a.

b.

c.

d.

e.

Figure 33 - Rotation of Control Knob

WARNING

WWARNING

f.

Wait 30 seconds before readjusting the heater when the control knob has been turned down to a lower setting.

TO TURN OFF GAS TO HEATER

1.Turn control knob clockwise to OFF position to completely shut off the heater.

2.If applicable: Turn off all electric power to the heater.

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Contents Read and Save These Instructions Models DLX18/GLX18 DLX24/GLX24 DLX28/GLX28What to do if YOU Smell GAS Contents Installer Important Safety InformationOwner From Getting Started Make Sure YOU have Received ALL PartsNatural GAS Product Features and SpecificationsPropane / LPG General Installation Information CodesAdequate Combustion and Ventilation AIR OFF IGN LOW/HIBTU/HR = L1 + L2 Ft x W Ft x H Ft x Fireplace and Hearth Dimensions Placement in a Fireplace with a Restrictive Barrier Height of Restriction Minimum Depth of Fireplace/FireboxClearances and Height Requirements Sidewall & Ceiling ClearancesClearances and Height Requirements Clearances and Height Requirments Measuring Heat Resistant Material for MantelMinimum Mantel Clearance with No Hood DLX/GLX Minimum Mantel Clearance with No Hood DLX/GLX 24 Floor Clearance Minimum Clearance above Combustible FlooringInstalling Vented Applications Before Fully Installing the UnitBefore Installing the Appliance Damper Stop InstallationAssembly Procedure Installing Vented ApplicationsPlacing and Securing Appliance Connecting the GAS Gas ConnectionChecking GAS Pressure Manual Control FigureElectrical Wiring MILLI-VOLT Connecting Optional Wall Switch or ThermostatChecking System Operation Connecting Remote ReceiverComplete Millivolt System Check LOG Placement Proper Sequence Oflog InstallationFlame Appearance Checking the Pilot FlameMILLI-VOLT Control Manual Control and Thermostat ControlChecking the Burner Flame Operating InstructionsOperating Instructions For Your Safety Read Before LightingWhat to do if YOU Smell GAS Manual Control Lighting Instructions To Turn OFF GAS to HeaterThermostatic Control Lighting Instructions Rotation of Control KnobMILLI-VOLT Control Lighting Instructions PilotMatch Lighting Instructions Cleaning and Servicing Replacement Parts List DLX/GLX DLX/GLX 24/28LX Golden Oak Logs LX Aged Split Logs LX Weathered Oak Logs LX Chestnut Oak Logs Troubleshooting Observed Problem Possible Cause RemedyOne or both burners do not light 14D2099 14D2099 Five Year Warranty Lifetime WarrantyBasic Warranty

DLX18, GLX28, GLX18, GLX24, DLX28 specifications

Monessen Hearth is renowned for its innovative and aesthetically pleasing gas fireplaces, and models like the DLX28, GLX24, GLX18, GLX28, and DLX18 embody this excellence. These fireplaces are designed to elevate the ambiance of any space while providing reliable heating and energy efficiency.

The DLX series, including the DLX28 and DLX18, showcases a blend of traditional craftsmanship with modern performance. These models focus on user-friendly features, such as an easy-to-use remote control and touchscreen controls that allow homeowners to adjust settings with ease. The realistic flame presentation, enhanced by the vibrant, hand-painted log sets, offers a lifelike fire experience. The DLX series also prioritizes efficiency, with high AFUE ratings ensuring minimal energy waste.

In contrast, the GLX series, featuring the GLX24 and GLX28, is perfect for those looking to create a contemporary living space. These fireplaces provide a sleek aesthetic with clean lines and minimalistic designs, making them an ideal fit for modern interiors. The GLX models incorporate advanced technologies such as a glass ember bed and multiple flame height adjustments, providing a customizable ambiance tailored to any moment. Additionally, they offer the option of a direct vent installation, ensuring optimal ventilation while maintaining efficiency.

The GLX18 complements smaller spaces without sacrificing style or performance, making it ideal for compact homes or apartments. Like its larger counterparts, it utilizes advanced safety features, including a built-in oxygen depletion sensor for added peace of mind.

All Monessen Hearth fireplaces are equipped with robust safety systems, ensuring optimal performance and security for homeowners. These models are also designed for versatility, allowing them to be installed in various settings, from traditional brick fireplaces to contemporary wall-mounted configurations.

In summary, the Monessen Hearth DLX28, GLX24, GLX18, GLX28, and DLX18 fireplaces represent the pinnacle of comfort and technology, offering stylish designs, user-friendly features, and energy-efficient performance. Whether you prefer a classic or modern aesthetic, Monessen Hearth has a model to fit your unique style and heating needs, making them an excellent choice for any home.
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