Getting Started; Product Features And Specifications; Gas Pressures; Gas Specifications - Vermont Castings NBST27 Installation Instructions Manual

GETTING STARTED - FEATURES and SPECIFICATIONS
Gloves are recommended when handling
ceramic fiber logs to prevent skin irritation
from loose fibers.
Logs are fragile - handle with care.
MAkE SURE YOU HAVE RECEIVED ALL
PARTS:
Check your packing list to verify that all listed parts have
been received. 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.
WHAT YOU WILL NEED 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
81D3032

GAS PRESSURES

Inlet Minimum
Inlet Maximum
Regulator Pressure
Pilot Regulator
*NOTE: An external regulator is required to reduce supply pres-
sure to a maximum of 13" w.c.

GAS SPECIFICATIONS

Model Fuel Control
NBST27NV Nat. Millivolt
NBST27PV LP Millivolt

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 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 fitted with a milli-volt (thermo-
pile) generator to provide power for remote activation.
If the area in which the heater may be
operated does not meet the required volume
for indoor combustion air, combustion and
ventilation air shall be provided by one
of the methods described in the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, the
International Fuel Gas Code or applicable
local codes.
NBST27 Unvented Gas Log Set
Natural *Propane (LP)
5.0" w.c. 11.0" w.c.
10.5" w.c. 13.0" w.c.
3.5" w.c. 10.0" w.c.
3.5" w.c. --
Gas Rate
Max.Input Min. Input
BTU/h BTU/h
39,000 26,000
39,000 30,000
5