PRODUCT FEATURES AND SPECIFICATIONS

NATURAL GAS

NOTE: An external regulator is required to reduce supply pressure to a maximum of 10 1/2" W.C. on natural gas systems operating at higher pressure.

MILLIVOLT

 

Model Number

Control

Gas Rate

Regulator Pressure Setting: 3.5" w.c.

Max BTU/Hr

Min BTU/Hr

NB18NV

Millivolt

28,000

19,000

Pilot Regulator:

3.5" w.c.

NB24NV

Millivolt

37,000

25,000

Gas Inlet Pressure:

Max 101/2" w.c.

 

 

 

 

Min. 5" w.c.

PROPANE/LPG

Note: An external regulator is required to reduce supply pressure to a maximum of 13" w.c.

MILLIVOLT

 

 

 

Gas Rate

Regulator Pressure Setting: 10" w.c

Model Number

Control

Max BTU/Hr

Min BTU/Hr

Gas Inlet Pressure:

Max. 13" w.c.

NB18PV

Millivolt

27,000

22,000

NB24PV

Millivolt

36,000

28,000

 

Min. 11" w.c.

 

 

 

 

 

IGNITION CONTROLS

Piezo ignitor allows ignition of the pilot without the use of matches or batteries.

Millivolt control has four (4) positions:

OFF

- All gas to the gas logs is shut off at the valve.

IGN

- Valve position to light/maintain a standing pilot.

ON

-

Valve position to turn ON/OFF log set with remote switch/thermostat.

LOW/HI

-

Variable position to control flame height (heat output).

PILOT/ODS

The gas log heater is fitted with a specially designed safety pilot (ODS assembly) which senses the amount of oxygen avail- able in the room and shuts the gas log heater off if the oxygen level begins to drop below a satisfactory level. The pilot can only be relit when adequate fresh air is available.

THERMAL GENERATOR

The millivolt gas log pilot is fitted with a Millivolt (thermopile) generator to provide power for remote activation.

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81D0107

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Monessen Hearth NB24, NB18 operating instructions Product Features and Specifications