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Installation/Owner's Manual
INSTALLER: Leave this manual with party responsible for use and operation.
OWNER: Retain this manual for future reference.
Contact your dealer with questions regarding installation, operation or service.
NOTICE: DO NOT discard this manual!
Models:
NBST27
cover
Monessen • NBST27-B Gas Log Set Owner's /Installation Manual • 4615-900 Rev. D • 01/2020
Appliance Setup, Care and Operation
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly
could result in serious injury, death, or
property damage.
• DO NOT store or use gasoline or other flam-
mable 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.
- Leave the building immediately.
- Immediately call your gas supplier from
a neighbor's phone. Follow the gas sup-
plier's instructions.
- If you cannot reach your gas supplier, call
the fire department.
• Installation and service must be performed
by a qualified installer, service agency, or the
gas supplier.
In the Commonwealth of Massachusetts installation must be
performed by a licensed plumber or gas fitter.
See appliance installation manual for additional
Commonwealth of Massachusetts requirements.
• DO NOT install this unit in a bedroom or
bathroom.
1
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Table of Contents
Related Manuals for Monessen Hearth NBST27NV-B
Summary of Contents for Monessen Hearth NBST27NV-B
- Page 1 Installation/Owner’s Manual Appliance Setup, Care and Operation INSTALLER: Leave this manual with party responsible for use and operation. OWNER: Retain this manual for future reference. Contact your dealer with questions regarding installation, operation or service. NOTICE: DO NOT discard this manual! WARNING: FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly...
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Page 2: Table Of Contents
Safety Alert Key: • DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury. • WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury. • CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. •... -
Page 3: Installation Standard Work Checklist
Installer: Model Dealer/Distributor Phone # (circle one): NBST27NV-B, NBST27PV-B Serial #: WARNING! Risk of Fire or Explosion! Failure to install appliance according to these instructions could lead to a fire or explosion. Gas Log Install Sections 2 and 4 (Pg. 5 & 20) ___________________________ Verified that the chimney has been cleaned. -
Page 4: Product Specific & Important Safety Information
NATURAL GAS: An external regulator is required to reduce supply pressure to a maximum of 10 ⁄ " w.c. on natural gas MODEL: NBST27NV-B, NBST27PV-B systems operating at higher pressure. LABORATORY: CSA PROPANE/LPG: An external regulator is required to reduce TYPE: Unvented Room Heater supply pressure to a maximum of 13"... -
Page 5: Getting Started
Getting Started A. Design and Installation Considerations C. Inspect Appliance and Components Installation MUST comply with local, regional, state and • Carefully remove the appliance and components from national codes and regulations. Consult insurance carrier, the packaging. local building inspector, fire officials or authorities having •... -
Page 6: Check Parts
D. Check Parts Verify contents to ensure you have received all parts. You should have the following: Models 21½” • Unvented gas log burner assembly • Three (3) bags of crushed volcanic rock • Installation/operating instructions • Two (2) anchoring brackets •... -
Page 7: Pilot/Ods
F. Pilot/ODS Placement in Fireplace with a Restrictive Barrier The following are guidelines for placing a gas log set in a The gas log heater is fitted with a specially designed safety fireplace that has a restrictive barrier along the bottom front pilot (ODS assembly) which senses the amount of oxygen opening of the fireplace. -
Page 8: Adequate Combustion Ventilation Air
G. Adequate Combustion Ventilation Air This heater shall not be installed in a confined space or Counter unusually tight construction unless provisions are provided Fireplace for adequate combustion and ventilation air. The National Fuel Gas Code, (ANSI Z223.1/NFPA54), defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 BTU per hour (4.8m per kw) of the aggregate input rating of all appliances installed in... -
Page 9: Clearances & Height Requirements
Clearances and Height Requirements Heat resistant material (minimum requirements) with WARNING no wooden mantel or other combustible projection: The dimensions shown in Figures 3.1 through To install the gas logs into a fireplace with no wooden 3.7 and defined in the fireplace manufacturer's mantel, shelf or other combustible projection above the instructions are minimum clearances to maintain fireplace opening, measure the heat resistant material... - Page 10 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, first measure the heat resis- 28" tant material shown in Figure 3.3, then refer to Table B. Heat Resistant Material 12"...
- Page 11 The gas log heater must be installed at least 3/4" above any combustible flooring material, such as carpeting or tile, which is closer than 14" to the base of the fireplace. The minimum distance must be maintained from the top surface of carpeting, tile, etc.
- Page 12 Before installing the appliance: WARNING • Turn off gas supply to fireplace or firebox. Before installing in a solid fuel burning fireplace, • The chimney flue and firebox must be cleaned of Have the fireplace floor and chimney professionally soot, creosote, ashes and loose paint by a qualified cleaned to remove ashes, soot, creosote or other chimney cleaner.
- Page 13 Place and Secure Appliance WARNING 1. Center the gas log unit in the fireplace or firebox. Make You must secure the gas log heater to the fireplace certain the front feet of the grate sit inside the front floor. If not, the entire unit may move when you edge of the fireplace or firebox.
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Page 14: Gas Information
Gas Information 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 hydrogen sulfide limits, and where permitted by local The heater gas inlet connection is a female 3/8"... -
Page 15: Fuel Type
C. Fuel Type Note: Have the gas supply line installed in accordance with local codes, if any. If not, follow ANSI 223.1. Installation • This appliance is equipped for either natural or propane should be done by a qualified installer approved and/or gas. -
Page 16: Connect Optional Wall Switch Or Thermostat
F. Connect Optional Wall Switch or Label all wires prior to disconnection when Thermostat (vent free application only) servicing controls. Wiring errors can cause improper and dangerous operation. Verify 1. Use 18 awg, two-wire cable, 15 feet maximum length. proper operation after servicing. 2. -
Page 17: Connect Remote Receiver
1. Complete Millivolt System Check G. Connect Remote Receiver (“A” Reading - Thermostat contacts CLOSED - 1. Set remote receiver. See instructions included in Control Knob “ON” - Main burner should turn receiver kit. 2. Unplug the two terminals for the log switch from the a. -
Page 18: Rock Wool Placement
Before You Begin WARNING NBST27-B logs are sold separately. Do not handle these logs with your bare hands. Always wear gloves to pre- The positioning of the logs is critical to the safe and vent skin irritation from ceramic fibers. After handling clean operation of this heater. -
Page 19: Gas Log Sets
Gas Log Sets 3. Place log #3 on farthest right grate tine by aligning the WARNING ‘V’ notch in log with grate tine. The groove in the bot- tom of the log should sit on the filler bracket surround- • Gloves are recommended when handling logs to ing the pilot assembly. - Page 20 Continue on Side B, valve on right as you face the fireplace. 6. Place log #6 on pilot end of burner by aligning the ‘V’ notch in bottom of log with the filler bracket surround- ing the pilot. Place the rectangular notch in the bottom of the log onto the rectangular protrusion on the end of log #1.
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Page 21: Place The Decorative Rock
In normal operation at full rate after 15 minutes, the B. Place Decorative Rock following flame appearances should be observed: The volcanic rocks are shipped with your log set. The vol- Burner will have a random pattern of yellow flames as canic rocks may be placed around the unit on the floor of shown in Figure 5.12. -
Page 22: Owner's Manual
Owner’s Manual Care & Operation Owner’s Manual Care and Operation INSTALLER: Leave this manual with party responsible for use and operation. OWNER: Retain this manual for future reference. Contact your dealer with questions regarding installation, operation or service. NOTICE: DO NOT discard this manual! WARNING: FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly... -
Page 23: Congratulations
This appliance is for installation only in a solid-fuel Lakeville, MN 55044 burning masonry or UL 127 factory-built fireplace or in ITEM NO: NBST27NV-B a listed ventless firebox enclosure. It has been design GAS: Natural Gas certified for these installations. Exceptions: DO NOT Input Rating: Max. -
Page 24: Limited Lifetime Warranty
B. Limited Lifetime Warranty ► Hearth & Home Technologies LIMITED LIFETIME WARRANTY Hearth & Home Technologies, on behalf of its hearth brands (“HHT”), extends the following warranty for HHT gas, wood, pellet and electric hearth appliances that are purchased from an HHT authorized dealer. WARRANTY COVERAGE: HHT warrants to the original owner of the HHT appliance at the site of installa on, and to any transferee taking ownership of the appliance at the site of installa on within two years following the date of original purchase, that the HHT appliance will be free from... - Page 25 B. Limited Lifetime Warranty (continued) WARRANTY CONDITIONS: • This warranty only covers HHT appliances that are purchased through an HHT authorized dealer or distributor. A list of HHT authorized dealers is available on the HHT branded websites. • This warranty is only valid while the HHT appliance remains at the site of original installa� on. •...
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Page 26: Important Safety & Operating Information
Important Safety and Operating Information A. Appliance Safety Clear Space WARNING! DO NOT place combustible objects in front WARNING! DO NOT operate gas log set before read- of the fireplace. High temperatures may start a fire. See ing and understanding operating instructions. Failure Figure 7.1. - Page 27 Important Safety and Operating Information (continued) OWNER Please retain these instructions for future reference. WARNING • Any change to this heater or its controls can be dangerous. • Improper installation or use of the heater can cause serious injury or death from fire, burns, explosion or carbon monoxide poisoning.
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Page 28: General Operating Parts
B. General Operating Parts 20. Input ratings are shown in BTU per hour and are for elevations up to 4,500 feet. For elevations above 4,500 Figure 7.2 references the general operating parts of the each 1,000 feet above sea level. Refer to the National appliance and the section of this manual in which they are Fuel Gas Code. -
Page 29: Application Certification
A. Appliance Certification B. BTU Specifications Maximum Minimum Models Input Input Orifice MODEL: NBST27-NV/PV-B BTU/h BTU/h LABORATORY: CSA NBST27NV-B (0-4500 FT) 39,000 26,000 TYPE: Unvented Room Heater NBST27PV-B (0-4500 FT) 39,000 30,000 STANDARD: ANSI Z21.11.2-2016 (Unvented Application) ANSI Z21.60-2012/CSA2.26-2012 (Vented Application) This product is listed to ANSI standards for “Unvented... -
Page 30: Lighting Instructions
Lighting Instructions FOR YOUR SAFETY READ BEFORE LIGHTING WARNING If you do not follow these instruction exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance is equipped with a piezo ignition device which lights the pilot. If piezo is not working properly see Match Lighting Instructions. - Page 31 Lighting Instructions (continued) 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 32 Lighting Instructions (continued) 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 flame to the end of the pilot and ignite the pilot. 3.
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Page 33: Maintenance & Service
Maintenance and Service C. Burner Ignition and Operation Any safety screen removed for servicing must be replaced prior to operating the unvented room heater. Frequency: Annually When properly maintained, your fireplace will give you By: Qualified Service Technician many years of trouble-free service. Contact your dealer Tools needed: Protective gloves, vacuum cleaner, whisk to answer questions regarding proper operation, trouble- broom, flashlight, voltmeter, indexed drill bit set, and a... -
Page 34: Cleaning & Servicing
D. Cleaning and Servicing Annual inspection and cleaning by your dealer or qualified service technician is recommended to pre- vent malfunction and/or sooting. WARNING Turn off heater and allow to cool before cleaning. Remove logs, handling carefully by holding gently at each end. -
Page 35: Troubleshooting
Troubleshooting WARNING Turn appliance OFF and allow to cool before servicing. Only a qualified service person should service and repair the heater. MILLIVOLT CONTROL SYSTEM NOTE: All troubleshooting items are listed in order of operation. PROBLEM POSSIBLE CAUSE SOLUTION Ignitor electrode positioned wrong. Replace ignitor. - Page 36 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. Fully open manual shutoff valve.
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Page 37: Service Parts & Accessories
Service Parts A. Service Parts NBST27NV-B, NBST27PV-B Service Parts Natural Blaze Beginning Manufacturing Date: Jun 2018 27” See-Through Hearth Kit Ending Manufacturing Date: Active IMPORTANT: THIS IS DATED INFORMATION . Parts must be ordered from a dealer or Stocked Hearth and Home Technologies does not sell directly to consumers distributor. - Page 38 NBST27-F Service Parts Natural Blaze Beginning Manufacturing Date: Jun 2018 27” See-Through Log Set Ending Manufacturing Date: Active IMPORTANT: THIS IS DATED INFORMATION . Parts must be ordered from a dealer or Stocked Hearth and Home Technologies does not sell directly to consumers distributor.
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Page 39: Accessories
B. 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 RRCM Log Switch with Wires ELSK Universal Andirons UAI9... - Page 40 MASSACHUSETTS RESIDENTS ONLY 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 fitter when installed within the Commonwealth of provisions shall comply with NFPA 720 and be ANSI/UL 2034 Massachusetts.
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Page 41: Contact Information
C. Contact Information Monessen, a brand of Hearth & Home Technologies 7571 215 Street West, Lakeville, MN 55044 www.monessenhearth.com Please contact your dealer with any questions or concerns. For the location of your nearest dealer, please visit www.monessenhearth.com - NOTES - ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________...
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