Natural Gas; Propane/Lpg; Specifi Cations; Ignition Controls - Martin VENT-FREE FIREPLACE SYSTEMS 33ISDG Installation And Operating Instructions Manual

Vent-free fireplace systems
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PRODUCT FEATURES

NATURAL GAS

Milli-Volt and T-Stat Pressure
Regulator Pressure Setting: 3.5" w.c.
Pilot Regulator: 3.5" w.c.
Gas Inlet Pressure: Max. 10 1/2" w. c.
Min. 5" w.c.
Model Number
33ISDNTG
33ISDNVG

PROPANE/LPG

Note: An external regulator is required to reduce supply pressure to a maximum of 13" w.c.
Milli-Volt and T-Stat Pressure
Regulator Pressure Setting: 10" w.c.
Gas Inlet Pressure: Max. 13" w.c.
Min. 11" w.c.
Model Number
33ISDPTG
33ISDPVG

IGNITION CONTROLS

Piezo ignitor allows ignition of the pilot without the use of matches or batteries.
Milli-Volt and T-Stat control has four (4) positions:
- All gas to the gas logs is shut off at the valve.
OFF
- Valve position to light/maintain a standing pilot.
IGN
- Valve position to turn ON/OFF log set with remote switch/thermostat.
ON
- Variable position to control flame height (heat output). Both front and rear burners are in operation
LOW/HI
to provide realistic glow and yellow flame.

PILOT

The gas log heater is fitted with a specially designed safety pilot light (ODS assembly) which senses the amount of oxygen
available 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 milli-volt gas log pilot is fitted with a milli-volt generator to provide power for remote activation.
6
SPECIFICATIONS
AND
Control
Millivolt
T-Stat
Control
Millivolt
T-Stat
Gas Rate
Max BTU/HR
28,000
28,000
Gas Rate
Max BTU/HR
28,000
28,000
Min BTU/HR
19,000
19,000
Min BTU/HR
23,000
23,000
23D8036

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