Vermont Castings NBST27 Installation And Operating Instructions Manual

Vermont Castings NBST27 Installation And Operating Instructions Manual

Vented/unvented gas log set

Advertisement

Vented/Unvented Gas Log Set
Installation and Operating Instructions
Models: NBST27
WARNING
If the information in this manual is not followed
exactly, a fi re or explosion may result causing
property damage, personal injury or loss of
life.
Do not store or use gasoline or other
fl ammable vapors and liquids in the
vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Immediately call your gas supplier from
a neighbor's phone. Follow the gas
supplier's instructions.
• If you cannot reach your gas supplier,
call the fi re department.
Installation and service must be
performed by a qualifi ed installer, service
agency or the gas supplier.
This appliance may be installed in
an aftermarket, permanently located,
manufactured (mobile) home, where not
prohibited by local codes.
This appliance is only for use with the type
of gas indicated on the rating plate. This
appliance is not convertible for use
with other gases.
This is an unvented gas-fi red heater. It uses
air (oxygen) from the room in which it is
installed. Provisions for adequate
combustion and ventilation air must be
provided. Refer to page 4.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
81D3032 10/15 Rev. 7

Advertisement

Table of Contents
loading

Summary of Contents for Vermont Castings NBST27

  • Page 1 Vented/Unvented Gas Log Set Installation and Operating Instructions Models: NBST27 WARNING If the information in this manual is not followed exactly, a fi re or explosion may result causing property damage, personal injury or loss of This appliance may be installed in life.
  • Page 2: Table Of Contents

    NBST27 Unvented Gas Log Set CONTENTS Gas and Valve Connection .......12 Important Safety Information ......3 Millivolt Valve Control........12 Codes .............4 Electrical Wiring (Millivolt) ........13 Features and Specifi cations .......5 Connecting Optional Wall Switch Check Parts ............5 or Thermostat ..........13 Items Needed for INstallation ......5 Connect Remote Receiver ......14...
  • Page 3: Important Safety Information

    NBST27 Unvented Gas Log Set IMPORTANT SAFETY INFORMATION INSTALLER OWNER Please leave these instructions with the appliance. Please retain these instructions for future reference. IMPORTANT: Read these instructions carefully before installing or trying to operate this vent-free gas heater. WARNING: •...
  • Page 4: Codes

    This gas is commonly known as wellhead gas. recommended. 20. During manufacturing, fabricating and shipping, various NBST27 is certifi ed to ANSI Z21.11.2 components of this appliance are treated with certain oils, fi lms or bonding agents. These chemicals are not...
  • Page 5: Features And Specifi Cations

    NBST27 Unvented Gas Log Set FEATURES AND SPECIFICATIONS CHECK PARTS: GAS PRESSURES Verify contents to ensure you have received all parts. You Natural Propane (LP) should have the following: Inlet Minimum 5.0" w.c. 11.0" w.c. • Unvented Gas Log Burner Assembly Inlet Maximum 10.5"...
  • Page 6: Fireplace And Hearth Dimensions

    *Any barrier greater than 3" placed in front of the gas log set is not The NBST27 unvented room heater is approved for installa- recommended by the manufacturer. tion into the following unvented fi reboxes: LSTF36, LPF36,...
  • Page 7: Clearances And Height Requirements

    CLEARANCE AND HEIGHT REQUIREMENTS NBST27 Unvented Gas Log Set Heat resistant material (minimum requirements) with WARNING no wooden mantel or other combustible projection: The dimensions shown in Figures 3 through 9 and To install the gas logs into a fi replace with no wooden defi...
  • Page 8 NBST27 Unvented Gas Log Set CLEARANCE AND HEIGHT REQUIREMENTS Heat resistant material (minimum requirements) with 10" or Less wooden mantel or other combustible projection: To install the heater with a wooden mantel, shelf or other combustible projection above, fi rst measure the heat resis- 28"...
  • Page 9: Floor Clearances

    FLOOR CLEARANCES NBST27 Unvented Gas Log Set The gas log heater must be installed at least 3/4" above any combustible fl ooring material, such as carpeting or tile, which is closer than 14" to the base of the fi replace.
  • Page 10: Fireplace Preparation

    NBST27 Unvented Gas Log Set FIREPLACE PREPARATION BEFORE INSTALLING THE APPLIANCE: WARNING • Turn off gas supply to fi replace or fi rebox. Before installing in a solid fuel burning fi replace, • The chimney fl ue and fi rebox must be cleaned of Have the fi...
  • Page 11: Place And Secure Appliance

    NBST27 Unvented Gas Log Set SECURE APPLIANCE WARNING WARNING The fi replace and gas logs function as a system. If You must secure the gas log heater to the fi replace the fi replace is spilling into the room (check with fl...
  • Page 12: Gas And Valve Connection

    NBST27 Unvented Gas Log Set GAS AND VALVE CONNECTION WARNING WARNING Connecting directly to an unregulated propane/ Use new black iron or steel pipe. Internally tinned LPG tank can cause an explosion. copper or copper tubing can be used per National Fuel Code, section 2.6.3, providing gas meets...
  • Page 13: Electrical Wiring (Millivolt)

    ELECTRICAL WIRING — MILLIVOLT NBST27 Unvented Gas Log Set CONNECTING OPTIONAL WALL SWITCH WARNING OR THERMOSTAT Label all wires prior to disconnection when servic- 1. Use 18 awg, two-wire cable, 15 feet maximum length. ing controls. Wiring errors can cause improper and 2.
  • Page 14: Connect Remote Receiver

    NBST27 Unvented Gas Log Set ELECTRICAL WIRING — MILLIVOLT CONNECT REMOTE RECEIVER A. Complete Millivolt System Check (“A” Reading - Thermostat contacts CLOSED - Control 1. Set remote receiver. Refer to instructions included in knob “ON” - Main burner should turn ON) the receiver kit.
  • Page 15: Log Placement

    LOG PLACEMENT NBST27 Unvented Gas Log Set DO NOT sprinkle volcanic rock on the logs, WARNING around the pilot, or on or near burners. This The positioning of the logs is critical to the safe and may cause sooting. Place volcanic rock only clean operation of this heater.
  • Page 16 NBST27 Unvented Gas Log Set LOG PLACEMENT 3. Place log #3 on farthest right grate tine by aligning the Continue on Side B, valve on right as you face the ‘V’ notch in log with grate tine. The groove in the bot- fi...
  • Page 17: Flame Appearance

    FLAME APPEARANCE NBST27 Unvented Gas Log Set FLAME APPEARANCE Flames from the pilot, front and rear burner should be visually checked as soon as the heater is installed. In addition, periodically check the fl ames visually during operation. CHECK THE PILOT FLAME The pilot fl...
  • Page 18: Operating Instructions

    NBST27 Unvented Gas Log Set OPERATING INSTRUCTIONS OPERATING INSTRUCTIONS The initial break-in operation should last four hours with the burner at the highest setting. Provide maximum ventilation Avoid any drafts that alter burner fl ame patterns. Do by opening windows or doors to allow odors to dissipate.
  • Page 19: Millivolt Control Lighting Instructions

    NBST27 Unvented Gas Log Set OPERATING INSTRUCTIONS MILLIVOLT CONTROL LIGHTING INSTRUCTIONS 1. STOP! Read the safety information label. 2. Make sure the manual shutoff valve is fully open. 3. This gas log set is equipped with an ignition device (piezo) which automatically lights the pilot. If piezo ignitor does not light the pilot, refer to instructions for Match Lighting Instructions, Page 22.
  • Page 20: Match Lighting Instructions

    NBST27 Unvented Gas Log Set MAINTENANCE MATCH LIGHTING INSTRUCTIONS 1. Remove any items necessary for easy access to the pilot (for example: logs, screens, etc.). 2. Follow appropriate lighting instructions found previously. Instead of pushing and releasing the piezo button, light a match and hold the fl ame to the end of the pilot and ignite the pilot.
  • Page 21: Troubleshooting

    NBST27 Unvented Gas Log Set TROUBLESHOOTING WARNING Turn off heater and allow to cool before cleaning. Disconnect electrical power before cleaning or servicing. NOTE: All troubleshooting items are listed in order of operation. PROBLEM POSSIBLE CAUSE SOLUTION Ignitor electrode positioned wrong.
  • Page 22 NBST27 Unvented Gas Log Set TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION Control knob not fully pressed in. Press in control knob fully. After ODS/pilot lights, keep control knob Control knob not pressed in long enough. pressed in for 30 seconds. Manual shutoff valve not fully open.
  • Page 23: Replacement Parts

    NBST27 Unvented Gas Log Set REPLACEMENT PARTS REF. DESCRIPTION QTY. NBST27NV NBST27PV Complete Log Set 81D3051 81D3051 Log #1 81D3034 81D3034 Log #2 81D3035 81D3035 Log #3 81D3036 81D3036 Log #4 81D3037 81D3037 Log #5 81D3038 81D3038 Log #6 81D3039...
  • Page 24: Accessories

    NBST27 Unvented Gas Log Set ACCESSORIES DESCRIPTION PART NUMBER Flex Connector Flexcon 30 Wall Switch and Wire MVWS Wall Thermostat Kit On/Off Remote RCB, RCMT, TLM, WMTD Thermostat Remote RCST, RCT, TLT, WWTD Remote Receiver Cover Ember RRCE Remote Receiver Cover Metal...
  • Page 25: Requirements In Massachusetts

    MASSACHUSETTS RESIDENTS ONLY NBST27 Unvented Gas Log Set Please read and follow these special requirements NOTE REGARDING VENTED PRODUCTS 2. Approved Carbon Monoxide Detectors. Each carbon This product must be installed by a licensed plumber or monoxide detector as required in accordance with the above gas fi...
  • Page 26: Warranty

    Vermont Castings Group in the appliance are found to be defective in materials or workmanship, Vermont Castings Group will, at its option, replace or repair the defective components at no charge to the original owner. Vermont Castings Group will also pay for reasonable labor costs incurred in replacing or repairing such components for a period of two years from the date of installation.

Table of Contents