Monessen Hearth NB24 Electrical Wiring Millivolt, Connecting Remote Receiver, Do not let wires

Models: NB18 NB24

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CONNECTING REMOTE RECEIVER

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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Monessen Hearth NB24 Electrical Wiring Millivolt, Connecting Remote Receiver, Do not let wires, touch grate or, burner