Gas Log Set Installation

5
NBST27 Unvented Gas Log Set
Monessen • NBST27 Gas Log Set Installation/Owner's Manual • 81D3032 • Rev A • 08/16
FEATURES AND SPECIFICATIONS
CHECK PARTS:
Verify contents to ensure you have received all parts. You
should have the following:
• Unvented Gas Log Burner Assembly
• Crushed Volcanic Rock, 3 bags
• Anchoring Screws, 2
• Ceramic Fiber Logs
• Rock wool
• Flickering Bright Embers, 1 bag
• On/Off Log Switch Assembly
• Installation/Operating Instructions
The following options may be used with the milli-volt con-
trolled heater. These options are not packaged with the
log set.
• Hand Held Remote with Receiver
• Wall Thermostat with 15' Wire
• Wall Switch with 15' Wire
• Hand held Thermostat Remote with Receiver
• Andirons
Carefully inspect the contents for shipping damage. If any
parts are missing or damaged, immediately inform the
dealer from whom you purchased the appliance. Do not
attempt to install any part of the appliance unless you
have all parts in good condition.
ITEMS NEEDED FOR INSTALLATION:
You should have the following items available before pro-
ceeding with installation:
• External regulator (for propane/LPG and 1/2 lb.
natural gas systems only)
• Piping which complies with local codes
• Sediment trap (recommended)
• Screwdriver
• Tee joint.
• Pipe sealant approved for use with propane/LPG
(Resistant to sulfur compounds)
• Drill with 5/32 masonry bit
• Pipe wrench or appropriate size crescent wrench
set
• Manual shutoff valve
Gloves are recommended when handling
ceramic ber logs to prevent skin irritation
from loose bers. Logs are fragile; handle
with care.
CAUTION
GAS PRESSURES
Natural Propane (LP)
Inlet Minimum 5.0" w.c. 11.0" w.c.
Inlet Maximum 10.5" w.c. 13.0" w.c.
Regulator Pressure
Setting
3.5" w.c. 11.0" w.c.
Pilot Regulator 3.5" w.c. n/a
NATURAL GAS: 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.
PROPANE/LPG: An external regulator is required to reduce
supply pressure to a maximum of 13" w.c.
IGNITION CONTROLS
The 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 ame height (heat
output).
PILOT/ODS
Thegaslogheateristtedwithaspeciallydesignedsafety
pilot (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millivoltgaslogpilotisttedwithamillivolt(thermopile)
generator to provide power for remote activation.
GAS SPECIFICATIONS
Gas Rate
Max. Input Min. Input
Model Fuel BTU/h BTU/h
NBST27NV Natural 39,000 26,000
NBST27PV LP 39,000 30,000