Monessen Hearth NB24, NB18 Connecting Remote Receiver, Checking System Operation

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ELECTRICAL WIRING (MILLIVOLT)

CONNECTING REMOTE RECEIVER

1.Set remote receiver. See instructions included in receiver kit.

2.Connect the two (2) 1/4" female connectors to the TP/TH and TH terminals on the control valve.

Remote

Wire

Connectors

 

 

 

NOTICE

 

Do not let wires

 

 

 

 

touch grate or

 

 

burner.

 

 

 

 

 

 

Remote

Wire

Connectors

Valve

Remote Receiver

Figure 18 - Installing Remote Receiver

Note: Heat reduces battery life. You can protect the receiver and extend battery life by mounting receiver in wall or other location outside the fireplace.

CHECKING SYSTEM OPERATION

The Millivolt system and individual com- ponents may be checked with a Millivolt meter having a 0-1000 mV range. Con- duct each check shown in chart below by connection meter test leads to terminals as indicated.

 

 

CONNECT

SWITCH OR

METER

CHECK

 

METER LEADS

THERMOSTAT

READING

TEST

TO TEST

TO TERMINALS

CONTACTS

SHOULD BE

A

COMPLETE

2 & 3

CLOSED

MINIMUM 175

SYSTEM

 

 

 

 

B

THERMOPILE

1 & 2

OPEN

MINIMUM 500

OUTPUT

 

 

 

 

A.COMPLETE MILLIVOLT SYSTEM CHECK

(“A” Reading - Thermostat contacts CLOSED - Control Knob “ON” - Main burner should turn ON)

a.If the reading is more than 175 Millivolts and the automatic valve still does not come on, replace the control.

b.If the closed circuit reading (“A” reading) is less than 175 Millivolts, determine cause for low reading, proceed to Section B below.

B.Thermopile Output Reading Check

(“B” Reading - Thermostat contacts OPEN - Main burner OFF)

1. Check gas pressure to the unit. If gas pressure is within minimum and maximum on data plate, then check pilot voltage, 500 Millivolts minimum. If the minimum Millivolt reading is not obtainable, replace pilot.

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81D0107

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Contents Read and Save These Instructions Model NB18, NB24What to do if YOU Smell GAS Contents Installer Important Safety InformationOwner Massachussetts Residents only Getting Started What YOU will Need for InstallationMake Sure YOU have Received ALL Parts Product Features and Specifications Codes General Installation InformationAdequate Combustion and Ventilation AIR BTU / Hr = Fireplace and Hearth Dimensions ModelPlacement in a Fireplace with a Restrictive Barrier Height of Restriction Minimum Depth of Fireplace/FireboxClearances and Height Requirements Sidewall and Ceiling ClearancesClearances and Height Requirements Measuring Heat Resistant Material for Mantel Minimum Mantel Clearance with No Hood -NB18 Mum of 10 at a minimum of 28 above the opening Floor Clearance Minimum Clearance above Combustible FlooringBefore Installing the Appliance Installing Vented ApplicationsBefore Fully Installing the Unit Damper Stop InstallationAssembly Procedure Installing Vented ApplicationsPlacing and Securing Appliance Connecting the GAS Flexible Tube Manual Shutoff Gas Supply Inlet ValveChecking GAS Pressure Millivolt Valve Control FigureConnecting Optional Wall Switch or Thermostat Electrical Wiring MillivoltATE Checking System Operation Connecting Remote ReceiverComplete Millivolt System Check LOG Placement Placing Rock WoolPlacing Log #3 Placing Flickering Embers EMBER, GRATE, and Rock InstallationCast Iron Grate Installation Placing the Decorative RockChecking the Pilot Flame Flame AppearanceMillivolt Control and Thermostat Control Checking the Burner Flame Operating InstructionsOperating Instructions What to do if YOU Smell GASTo Turn OFF GAS to Heater Operating Instructions and Cleaning and Servicing Cleaning and ServicingTroubleshooting Observed Problem Possible Cause RemedyODS/pilot lights, but flame Replacement Parts Burner AssemblyReplacement Parts List Accessories Sold SeparatelyBerkley OAK Refractory Logs Description Qty BO18-R BO18-F BO24-R BO24-F BO30-R BO30-FCarbon Monoxide Detector Requirements Special Requirements 81D0107 81D0107 Five Year Warranty Lifetime WarrantyBasic Warranty