Monessen Hearth MJ27NR, MJ27PR Checking GAS Pressure, Millivolt Valve Control Figure

Page 20

CHECKING GAS PRESSURE

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. On all control type units, the inlet connection is on the right side of unit. To connect from the opposite side, route the pipe around the back 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 solu- tion after completing connection. DO NOT USE AN OPEN FLAME.

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

Test Port “OUT”

Millivolt Valve 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 three
	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	FP2008
	turn captured screw clockwise firmly to re-seal. Do	FP2008
	turn captured screw clockwise firmly to re-seal. Do
	not over torque. Check for gas leaks.	Figure 15 - Pressure Test Point Location
		Figure 15 - Pressure Test Point Location
		Millivolt Control

20

86D0024

Image 20

Contents Models MJ27NR, MJ27PR Natural Gas or Liquid Propane Control Type Millivolt Hi/LowContents Important Safety Information InstallerOwner Gas Code, Ansi Z223.l/NFPA54Known as wellhead gas Never connect unit to private nonUtility gas wells. This gas is commonly Make sure you have received all parts What you will need for installationGetting Started Product Features and Specifications General Installation Information CodesAmerican National Standards Institute, Inc National Fire Protection Association, IncBTU / hr = Fireplace and Hearth Dimensions Minimum Hearth DimensionPlacement in a fireplace with a restrictive barrier Height of Restriction Minimum Depth of Fireplace/FireboxClearances and Height Requirements Sidewall and Ceiling ClearancesMeasurement MJ27 Requirements for Safe InstallationHeat Resistant Heat Resistant Requirements for Safe Installation with Wood Mantel, Shelf or Other Combustible Projection12 min Is an example of an unsafe mantel instal Floor Clearance Minimum Clearance above Combustible FlooringBefore installing in a solid fuel burning Paint by a qualified chimney cleanerInstalling Vented Applications Fireplace PreparationPlacing and Securing Appliance Installing Vented ApplicationsAssembly procedure Connecting the GAS Gas ConnectionChecking GAS Pressure Millivolt Valve Control FigureElectrical Wiring Millivolt AteConnecting Remote Receiver Do not allow wiresBurner To touch grate orLOG Placement Install Log #8 Install Log #4 Place Flickering Embers Place Flickering Bright EmbersAndiron and rock installation ANDIRON InstallationAssembly Instructions Placing the decorative rockFlame Appearance Checking the pilot flameChecking the Burner Flame Operating InstructionsOperating Instructions What to do if YOU Smell GASTo Turn OFF GAS to Heater Operating Instructions / Cleaning and Servicing Cleaning and ServicingTroubleshooting Servicing. Only a qualified service personShould service and repair the heater Turn appliance OFF and allow to cool beforeGoes out when control Replacement parts Description QtyDescription Qty MJ27 Replacement Parts listLogs Please Read and Follow These 86D0024 Lifetime Warranty Five Year WarrantyBasic Warranty If Warranty Service is NeededMhsc