MAJESTIC 24VFSC DBX Vent Free Fireplace Systems Installation Guide

: July 4, 2024
: Majestic

Table of Contents

24VFSC DBX Vent Free Fireplace Systems
Specifications:
Product Usage Instructions:
Important Safety Information:
Installation:
Gas Connection:
Controls:
System Operation:
Final Installation:
- FAQ:
Q: What should I do if I smell gas when using the
Q: Can I install this fireplace in a bedroom?

24VFSC DBX Vent Free Fireplace Systems

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Specifications:

Model: MAJESTIC 24VFSC
Product Type: VFS, DBX Vent-Free Fireplace System
Fuel Type: Gas-fired heater
Ventilation: Unvented

Product Usage Instructions:

Important Safety Information:

Before using the appliance, carefully read and understand all
installation and operation instructions to prevent fire hazards and
ensure safety.

Installation:

Ensure proper combustion and ventilation air provisions. Refer
to Page 7 of the manual for detailed instructions on installation
requirements.

Gas Connection:

Securely connect the gas supply following the instructions
provided.
Check gas pressure to ensure proper functioning of the
fireplace.

Controls:

Depending on the model, use either manual control, thermostat
control, or milli-volt control as per your preference. Follow the
instructions for electrical wiring if using milli-volt control.

System Operation:

After installation, check the system’s operation to ensure
everything is functioning correctly. Follow the steps outlined in
the manual for system checks.

Final Installation:

Remove the screen if applicable.
Install the canopy properly.
Place logs and rock wool as instructed for optimal
performance.
Check flame appearance for both pilot and burner flames.

FAQ:

Q: What should I do if I smell gas when using the

fireplace?

A: If you smell gas, immediately turn off the gas supply, open
windows for ventilation, and contact a qualified technician.

Q: Can I install this fireplace in a bedroom?

A: It is not recommended to install vent-free fireplaces in
bedrooms due to ventilation requirements and safety concerns.

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VFS, DBX Vent-Free Fireplace Systems
Installation & Operating Instructions
Models: 24VFSC, 32VFSC, DBX24

WARNINGS
If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
Do not store or use gasoline or other flammable 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 fire department.
Installation and service must be performed by a qualified installer, service agency or the gas supplier.

This is an unvented gas-fired 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 7.
INSTALLER: Leave this manual with the appliance. CONSUMER: Retain this manual for future reference.

33D4051 1/11 Rev. 6

VFS & DBX Series Vent Free Fireplaces

CONTENTS

Thank you and congratulations on your purchase of a
Majestic Fireplace.
PLEASE READ THE INSTALLATION AND OPERATION INSTRUCTIONS BEFORE USING THE APPLIANCE! IMPORTANT: Read all instructions and warnings carefully before starting installation.
Failure to follow these instructions may result in a possible fire hazard and will void the warranty.
24VFSC and 32VFSC gas log appliances described in this manual feature the TRIPLE PLAY BURNER SYSTEM® technology producing a full random yellow flame, full depth ember bed and glowing logs.

Important Safety Information ……………………………… 3
Code Approval ……………………………………………………. 4
Product Features ………………………………………………… 5 Gas Pressures…………………………………………………. 5 Gas Specifications……………………………………………. 5 Ignition Controls ………………………………………………. 5 Pilot ……………………………………………………………….. 5 Thermal Generator …………………………………………… 5 Fireplace and Framing Dimensions…………………….. 6
Preinstallation Information ………………………………….. 7 What You Will Need………………………………………….. 7 General Fireplace Installation…………………………….. 7
Installation Information……………………………………….. 8 Fireplace Location ……………………………………………. 8 Clearances ……………………………………………………… 9 Fireplace Installation ………………………………………. 10 Secure Heater to Floor or Hearth ……………………… 11
Connect the Gas ……………………………………………….. 12
Checking Gas Pressure …………………………………….. 13 Manual Control ………………………………………………. 13 Thermostat Control…………………………………………. 13 Milli-Volt Control …………………………………………….. 13
Electrical Wiring (Milli-Volt) ……………………………….. 14 Connect Optional Wall Switch ………………………….. 14 Connect Remote Receiver ………………………………. 15 Check System Operation ………………………………… 15

Final Installation ……………………………………………….. 16 Screen Removal…………………………………………….. 16 Canopy Installation…………………………………………. 16 Log Placement ………………………………………………. 17 Rock Wool Placement …………………………………….. 18
Flame Appearance…………………………………………….. 19 Pilot Flame ……………………………………………………. 19 Burner Flame Appearance ………………………………. 0
Operating Instructions ………………………………………. 20 For Your Safety Read Before Lighting……………….. 1 Manual Control Lighting Instructions …………………. Thermostatic Control Lighting Instructions …………. 3 MilliVolt Control Lighting Instructions…………………. 4 Match Lighting Instructions………………………………. 5
Maintenance……………………………………………………… 25 Cleaning and Servicing …………………………………… 5
Troubleshooting ……………………………………………….. 26
Replacement Parts ……………………………………………. 27 Firebox …………………………………………………………. 7 4VFSC Millivolt & Manual Control Burner ……….. 8 3VFSC Millivolt Burner ………………………………….. 9 DBX4C T-Stat Burner ……………………………………. 30
Optional Accessories………………………………………… 31 Forced Air Kit…………………………………………………. 31 Optional Brick ………………………………………………… 3 Optional Trim …………………………………………………. 3 Trim Installation ……………………………………………… 33
Warranty …………………………………………………………… 35

33D4051

IMPORTANT SAFETY INFORMATION

VFS & DBX Series Vent Free Fireplaces

INSTALLER
Please leave these instructions with the appliance.

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.
· Do not allow fans to blow directly into the fireplace. Avoid any drafts that alter burner flame patterns.
· Do not use a blower insert, heat exchanger insert or other accessory, not approved for use with this heater where applicable.

1. Due to high temperatures, the appliance should be located out of traffic and away from furniture and draperies.
. Children and adults should be alerted to the hazard of high surface temperature and should stay away to avoid burns or clothing ignition.
3. Young children should be carefully supervised when they are in the same room with the appliance.
4. Do not place clothing or other flammable material on or near the appliance.
5. Any safety screen or guard removed for servicing an appliance, must be replaced prior to operating the heater.
6. Installation and repair should be done by a qualified service person.
7. To prevent malfunction and/or sooting, an unvented gas heater should be cleaned before use and at least annually by a professional service person. More frequent cleaning may be required due to excessive lint from carpeting, bedding materials, etc. It is imperative that control compartments, burners and circulating air passageways be kept clean.
8. CARBON MONOXIDE POISONING: Early signs of carbon monoxide poisoning are similar to the flu with headaches, dizziness and/or nausea. If you have these signs, obtain fresh air immediately. Have the heater serviced as it may not be operating properly.
9. The installation must conform with local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.l/NFPA54.
10. This unit complies with ANSI Z1.11. Unvented Heaters, latest edition.
11. Do not install the VFS model in a bathroom or bedroom. The DBX model may be installed in a bedroom, but not in a bathroom.
1. Correct installation of the ceramic fiber logs, proper location of the heater, and annual cleaning are necessary to avoid potential problems with sooting. Sooting,

resulting from improper installation or operation, can settle on surfaces outside the fireplace. Refer to log placement instructions for proper installation.
13. Avoid any drafts that alter burner flame patterns. Do not allow fans to blow directly into fireplace. Do not place a blower inside burn area of firebox. Ceiling fans may create drafts that alter burner flame patterns. Sooting and improper burning will occur.
14. Caution: Candles, incense, oil lamps, etc. produce combustion byproducts including soot. Vent-free appliances will not filter or clean soot produced by these types of products. In addition, the smoke and/or aromatics (scents) may be reburnt in the vent-free appliance which can produce odors. It is recommended to minimize the use of candles, incense, etc. while the vent-free appliance is in operation.
15. This is an unvented gas-fired 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 8.
16. This heater shall not be installed in a room or space unless the required volume of indoor combustion air is provided by the method described in the National Fuel Gas Code, ANSI Z223.1/NFPA 54, the International Fuel Gas Code or applicable local codes.
17. Keep room area clear and free from combustible materials, gasoline and other flammable vapors and liquids.
18. Unvented gas heaters are a supplemental zone heater. They are not intended to be the primary heating appliance.
19. Unvented gas heaters emit moisture into the living area. In most homes of average construction, this does not pose a problem. In houses of extremely tight construction, additional mechanical ventilation is recommended.
0. During manufacturing, fabricating and shipping, various components of this appliance are treated with certain oils, films or bonding agents. These chemicals are not harmful but may produce annoying smoke and smells

33D4051

3

VFS & DBX Series Vent Free Fireplaces

IMPORTANT SAFETY INFORMATION

as they are burned off during the initial operation of the appliance; possibly causing headaches or eye or lung irritation. This is a normal and temporary occurrence.
The initial break-in operation should last two to three hours with the burner at the highest setting. Provide maximum ventilation by opening windows or doors to allow odors to dissipate. Any odors remaining after this initial break-in period will be slight and will disappear with continued use.
1. Input ratings are shown in BTU per hour and are for elevations up to ,000 feet. For elevations above ,000 feet, input ratings should be reduced 4 percent for each 1,000 feet above sea level. Refer to the National Fuel Gas Code.
. The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/ psig (3.5 kPa).
3. The appliance must be isolated from gas supply piping system by closing its equipment shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/ psig (3.5 kPa).
4. Do not use this room heater if any part has been under water. Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water.
5. Never burn solid fuels in a fireplace where a unvented room heater is installed.
6. Always have a fireplace screen in place when the appliance is in operation and, unless other provisions for combustion air are provided, the screen must have an opening(s) for induction of combustion air.

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.
CODES
Adhere to all local codes or, in their absence, the latest edition of THE NATIONAL FUEL GAS CODE ANSI Z3.1 or NFPA54 which can be obtained from:
American National Standards Institute, Inc. 1430 Broadway
New York, NY 10018
or
National Fire Protection Association, Inc. Batterymarch Park Quincy, MA 069

4

33D4051

PRODUCT FEATURES

VFS & DBX Series Vent Free Fireplaces

Fireplace Screen

Control Knob
Piezo Ignition

Figure 1 –

On/Off Switch

Unvented Gas Heater

(Control Access Door Shown Open)

FP507

This vent-free fireplace must be mounted on the floor or on the optional fireplace hearth.

OPERATION
This unvented gas heater requires no outside venting and burns cleanly with high heating efficiency.
This zero-clearance unvented gas heater can be installed against (or recessed into) any wall that is accessible to a gas line.

GAS PRESSURES

Control Regulator Pressure Pilot Regulator Max. Inlet Pressure Min. Inlet Pressure Regulator Pressure Max. Inlet Pressure Min. Inlet Pressure

Fuel Nat. Nat. Nat. Nat. LP LP LP

Manual & T-stat
4.0″ w.c. n/a
10.5″ w.c. 5.0″ w.c. 10.0″ w.c. 13.0″ w.c. 11.0″ w.c.

Millivolt 3.5″ w.c. 3.5″ w.c. 10.5″ w.c. 5″ w.c. 10.0″ w.c. 13.0″ w.c. 11.0″ w.c.

Gas Specifications

Model 4VFSNMC 4VFSPMC 4VFSNVC 4VFSPVC 3VFSNVC 3VFSPVC DBX4NTC DBX4PTC

Fuel Nat. LP Nat. LP Nat. LP Nat. LP

Control Manual Manual Millivolt Millivolt Millivolt Millivolt T-Stat T-Stat

Input BTU/hr

Max. Min.

,000 15,000

,000 17,000

6,000 0,000

10,000

—

10,000

—

NOTE: For LP models an external regulator is required to reduce supply pressure to a maximum of 13″ w.c.

IGNITION CONTROLS
Piezo ignitor allows ignition of the pilot without the use of matches or batteries.
Manual 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). Both front and rear burners are in operation to provide realistic glow and yellow flame.
Thermostat control has three (3) positions: OFF – All gas to the gas logs is shut off at the valve. IGN – Valve position to light/maintain a standing pilot.
LOW/HI – Variable position corresponding to desired temperature.
PILOT
The gas log heater is fitted with a specially designed safety pilot light 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.

33D4051

5

VFS & DBX Series Vent Free Fireplaces

S

R S

1/2″ or 5/8″

Q

Min. Rough

Opening

Height

N

Figure 2 Fireplace and Framing Dimensions

FIREPLACE and FRAMING DIMENSIONS

D

Min. Rough

L

Opening

Depth

P H

M O – Min. Rough Opening Width
J G

B I
A

C E
F K

Ref.

24VFSC/DBX24

A

4Zx” (6 mm)

B

Zx” (57 mm)

C

6Zx” (673 mm)

D

14″ (356 mm)

E

17″ (43 mm)

F

4B,” (118 mm)

G

4M,” (14 mm)

H

11M,” (30 mm)

I

1″ (5 mm)

J

10Zx” (67 mm)

K

9″ (9 mm)

L

13Z,” (333 mm)

M

1″ (533 mm)

Framing Dimensions

N

6Cv” (680 mm)

O

4Cv” (69 mm)

P

10Zx” (67 mm)

Q

4Zx” (1080 mm)

R

1″ (533 mm)

S

30″ (76 mm)

32VFSC 3″ (813 mm) 8Cv” (730 mm) 30″ (76 mm) 1Cv” (553 mm) 0Zv” (514 mm) 4Cv” (11 mm) 5″ (17 mm) 13C,” (340 mm) 1B,” (41 mm) 1″ (305 mm) 10B,” (70 mm) 17Zx” (445 mm) 7″ (686 mm)

30Zv” 3Zx” 1Zv” 53Cv” 6Cv” 38″

(768 mm) (86 mm) (311 mm) (136 mm) (680 mm) (965 mm)

6

33D4051

PREINSTALLATION INFORMATION

VFS & DBX Series Vent Free Fireplaces

WARNING WARNING

· Handle the gas log burner assembly by the grate only. Do not pick the unit up by the burners.
· Gloves are recommended when handling ceramic fiber logs to prevent skin irritation from loose fibers. Logs are fragile — handle with care.

GETTING STARTED

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 heater

· Trim kit

· Two () 90°-angle brackets · Ceramic fiber logs

· Installation/operating instructions

· Canopy and three (3) screws

· Two () anchoring screws · Four (4) black screws

Millivolt controlled heater designed to be operated with optional devices for ON/OFF functions.

· Hand held Remote with receiver · Wall T-stat with 0′ wire · Wall switch with 0′ wire · Hand held Thermostat Remote w/receiver

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 must have the following items available before proceeding with installation:

· External regulator (for propane/LPG only) · Manual shutoff valve · Piping which complies with local codes · Sediment trap · Phillips head screwdriver · Tee joint. · Pipe sealant approved for use with propane/LPG · Pipe wrench
(Resistant to sulfur compounds)

WARNING

Do not install the heater:
· Where curtains, furniture, clothing, or other flammable objects are less than 42″ from the front of the heater.
· In high traffic areas. · In windy or drafty areas.
In planning the installation for the fireplace it is necessary to determine where the unit is to be installed and whether optional accessories are desired. Gas supply piping should also be planned. The following steps represent the normal sequence of installation. Each installation is unique, however, and might require a different sequence. 1. Position fireplace in desired location. Refer to the Loca-
tion of Fireplace and Clearances and Height Requirements, and Firebox Framing sections found in this manual.
NOTE: Be sure all packing material has been removed from underside the unit.
. Install canopy and logs per instructions found in this manual. The canopy MUST be installed for safe operation of the unit.
3. Field wire main power supply to units with fan kit. Refer to the Electrical Section found in this manual. (Electrical connections should only be performed by an experienced, licensed certified tradesman).
4. Install optional ON/OFF kit on units with millivolt control. Refer to the installation instructions included with the kit and also refer to the Electrical Wiring section found in this manual.
5. Plumb gas line. Refer to the Connecting the Gas section found in this manual. (Gas connections should only be performed by an experienced, licensed/certified tradesman).
6. Complete finish wall material and/or surround.
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.

33D4051

7

VFS & DBX Series Vent Free Fireplaces

FIREPLACE INSTALLATION

FIREPLACE LOCATION
Carefully select the best location for installation of your unvented fireplace. The following factors should be taken into consideration.
· Clearance to side wall, ceiling, woodwork and window or other combustibles. Refer to “Clear-
ances” section on Page 10. Minimum clearances to combustibles must be maintained.
· Location must not be affected by drafts caused by kitchen exhaust fans, ceiling fans, return
air registers for forced air furnaces / air conditioners, windows or doors.
· Installation must provide adequate ventilation and combustion air. · DO NOT INSTALL THIS MODEL IN A BEDROOM OR BATHROOM. · Location should be out of high traffic areas and away from furniture and draperies due to
heat from firebox.
· Never obstruct the front opening of the unvented fireplace or restrict the flow of combustion
and ventilation air.
· Minimize modifications to existing construction. Refer to Figure 3 below for location sugges-
tions.
· Do not install in the vicinity where gasoline or other flammable liquids may be stored. The
unvented firebox must be kept clear and free from the combustible materials.

Figure 3 Possible Fireplace Locations

FP440

8

33D4051

FIREPLACE INSTALLATION

VFS & DBX Series Vent Free Fireplaces

Ensure that minimum clearances shown in Figures 4 and 5 are maintained. Left and right clearances are determined when facing the front of the firebox.
Follow these instructions carefully to ensure safe installation. Failure to follow these requirements may create a fire hazard.
Sidewall Clearances — The clearance from the inside of the appliance to any combustible adjacent wall should not be less than 9″ for the DBX4C/4VFSC and 3VFSC. Figure 4 Ceiling Clearance — The ceiling must be at least 4″ from the top of the firebox opening. Figure 4
Back Wall Clearance — The appliance may be placed against a combustible back wall.
Floor Clearance — The fireplace may be installed directly on a combustible floor or a raised platform of an appropriate height. Do not place fireplace on carpeting, vinyl, tile or other soft floor coverings. It may, however, be placed on flat wood, plywood, particle board or other hard surfaces. Be sure fireplace rests on a solid continuous floor or platform with appropriate framing for support and so that no cold air can enter from under the firebox.
Mantel clearances — The canopy supplied with the unit must be installed. If a combustible mantel is installed. It must meet the clearance requirements detailed in Figure 5.

42″ Minimum

9″ Minimum

12″
19″ 256O” 10″

Figure 4 Sidewall and Ceiling Clearances

FP441

FP508
Figure 5 Mantel Clearances

Canopy

WARNING

The dimensions shown in Figures 5 and 6 are minimum clearances to maintain in installing this heater. Left and right clearances are determined when facing the front of the heater.
Follow these instructions carefully to ensure safe installation. Failure to follow instructions exactly can create a fire hazard.

33D4051

9

VFS & DBX Series Vent Free Fireplaces

FIREPLACE INSTALLATION

If unit is to be “built in”, fireplace framing can be built before or after the appliance is set in place. BE SURE THAT ALL PACkING MATERIAL HAS BEEN REMOVED FROM THE UNDERSIDE OF THE UNIT PRIOR TO SETTING THE FIREBOX IN PLACE. Construct fireplace framing following Figure 2 on Page 6 for fireplace dimensions. The framing headers may rest directly on top of the firebox.
The fireplace may be installed directly on a combustible floor or a raised platform of an appropriate height. Do not place fireplace on carpeting, vinyl, tile or other soft floor coverings. It may, however, be placed on flat wood, plywood, particle board or other hard surfaces. Be sure fireplace rests on a solid continuous floor or platform with appropriate framing for support and so that no cold air can enter from under the firebox.
Anchor fireplace to the side framing members using nailing flanges.
The fireplace must be installed giving full consideration to the clearance and height requirements identified in this manual.

K

J

FP445
When finishing a custom cabinet, mantel or other built-in enclosure, the opening size to accommodate the fireplace with trim installed is as follows:

Ref. 24VFSC

J

6Cv”

(680 mm)

K

5″

(635 mm)

DBX24C 6Cv”
(680 mm) 5″
(635 mm)

32VFSC 31Zv”
(800 mm) 3ZCzn”
(833 mm)

Figure 6 Custom Cabinet

WARNING

1. Bend out the nailing flanges located on each side of the firebox.
. Slide the firebox into prepared framing or position firebox in its final position and frame later.
3. Level the firebox by checking the top edge of the firebox. Shim if necessary.
4. Anchor firebox to the side framing members using 8d nails or other suitable fasteners. Figure 7
5. The canopy must be installed for safe operation of the heater. Refer to Page 16 for canopy installation details.

Nail Sides Through Nailing Flanges

Figure 7 Nailing Flanges

FP509

10

33D4051

FIREPLACE INSTALLATION

VFS & DBX Series Vent Free Fireplaces

SECURING HEATER TO FLOOR OR HEARTH
NOTE: Clearance requirements as detailed in “CLEARANCES and HEIGHt REquIREmENtS” section on Page 15 of this manual, must be met before securing the heater in place.
To prevent movement, the heater must be secured to the floor or hearth.
1. Open the control access door and remove the screen. . Remove carton containing the four-log set. 3. To remove the grate and base assembly, take out two () screws as shown in Figure 8. 4. Lift grate and base assembly out of the firebox. 5. Secure the firebox with two anchoring screws (3/16″ x 1Zv” length) supplied with the fireplace
system. Figure 9
NOTE: If the unit is mounted on carpeting, tile or combustible material without the hearth, a metal or wooden base covering the entire width and depth of the base must be installed.

Screws Grate
Figure 8 Remove Grate
33D4051

FP515

Anchor Screws 3/16″ x 1Zv”
Figure 9 Secure Heater to Floor or Hearth

FP516

11

VFS & DBX Series Vent Free Fireplaces

FIREPLACE INSTALLATION

NOTICE: A qualified gas appliance installer must connect the heater to the gas supply. Consult all local codes.

WARNING

Use new black iron or steel pipe. Internally tinned 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 codes. Gas piping system must be sized to provide minimum inlet pressure (Listed on Data Plate) at the maximum flow rate (BTU/hr). Undue pressure loss will occur if the pipe is too small. A manual shutoff valve must be installed upstream of the appliance. Union tee and plugged 1/8″ NPT pressure tapping point should be installed upstream of the appliance. Figure 10 A sediment trap should be installed upstream to prevent moisture and contaminants from passing through the pipe to appliance controls and burners. Failure to do so could prevent the appliance from operating reliable. Figure 10

To Fireplace

Pipe Coupling

Stainless Flexible Tube

Pipe

Locations Pressure Tapping Point Installation

Figure 10 Gas Connection

Manual Shutoff Valve

Gas Supply Inlet

Sediment Trap

Tee Joint Pipe Nipple
Cap

3″ Min.
FP447

IMPORTANT: Loosen the pipe adapter on the flex tube before installing to the system piping.
Always use an external regulator for all propane/LPG heaters only, to reduce the supply tank pressure to a maximum of 13″ w.c. This is in addition to the internal regulator in the heater valve.

CHECk GAS TYPE: The gas supply must be the same as stated on the heater’s rating plate. If the gas supply is different, DO NOT INSTALL THE HEATER. Contact your dealer for the correct model.

WARNING

1

33D4051

FIREPLACE INSTALLATION

VFS & DBX Series Vent Free Fireplaces

When tightening the joint to the valve, hold the valve securely to prevent movement.
Test all gas joints from the gas meter to the heater valve for leaks using a gas analyzer or soap and water solution after completing connection. DO NOT USE AN OPEN FLAME. Check the gas pressure with the appliance burning and the control set to HIGH. Open control access door at bottom front of unit to find valve and regulator referred to below.

Do not use open flame to check for gas leaks.

Connecting directly to an unregulated propane/LP tank can cause an explosion.

WARNING WARNING

MANUAL CONTROL
Figure 11
The pressure regulator is preset and locked to discourage tampering. If the pressure is not as specified, replace the regulator with the correct part from the parts list in this manual.
Remove 1/8″ NPT plug, located on side of regulator body. Install fitting and tubing to pressure gauge. After taking pressure reading, reinstall test plug. Check for gas leaks.

Test Points FP510

Figure 12 Alternate Test Point Location for Thermostat control Units

NPT Test Plug

Figure 11 Pressure Test Point Location – Manual Control

FP499

THERMOSTAT CONTROL
Figure 12
Turn captured screw counter clockwise two or three turns and then place tubing to pressure gauge over test point (Use test point closest to control knob). After taking pressure reading, be sure and turn captured screw clockwise firmly to reseal. Do not over torque. Check for gas leaks.
MILLIVOLT CONTROL
Figure 13
The valve regulator controls the burner pressure which should be checked at the pressure test point.

Test Port ‘A’
Figure 13 Pressure Test Point Location – Millivolt Valve

FP511

Turn captured screw counter clockwise two or three turns and then place tubing to pressure gauge over test point. (Use test point “A” closest to gas inlet). After taking pressure reading, be sure and turn captured screw clockwise firmly to reseal. Do not over torque. Check for gas leaks.

33D4051

13

VFS & DBX Series Vent Free Fireplaces

Wall Switch

On/Off Switch
TH = 3 TP = 1 TP/TH =

ELECTRICAL INSTALLATION

On/Off Switch
ODS Pilot

Valve

ODS Pilot

Spade Terminal

Figure 14 Wiring Diagram

Switch

FP11

WARNING

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

Optional Wall Switch or Remote Receiver

CONNECTING OPTIONAL WALL SWITCH
1. Use 18 awg, two-wire cable, 15 feet maximum length. . At one end of the cable, connect both wires to the wall switch or thermostat. At the other end,
connect one wire to TP/TH and one wire to TH. The color of the wires does not matter.

14

33D4051

ELECTRICAL INSTALLATION

VFS & DBX Series Vent Free Fireplaces

CONNECT REMOTE RECEIVER
THESE INSTRUCTIONS SUPERCEDE THE SECTION ENTITLED “HEARTH MOUNT” IN THE MILLI- VOLT HAND-HELD REMOTE INSTRUCTIONS SUPPLIED WITH THE REMOTE. Figure 15
1. Remove bottom louvre door.
. Connect the remote connectors located in the unit.
3. Stick Velcro· pads with self-adhesive backing to bottom of remote receiver and to floor of compartment behind access panel.
4. Attach remote receiver to firebox with Velcro· pads. Control switch must face forward.
NOTE: Do not place remote in combustion chamber.

Velcro·

Remote Receiver

SKYTECH

OFF REMOTE

FIRREEMPLOATCEE

ON

Velcro·

Figure 15 Install Remote Receiver

FP51

CHECk SYSTEM OPERATION
The milli-volt system and individual components may be checked with a milli- volt meter having a 0-1000 mV range. Conduct each check shown in chart below by connection meter test leads to terminals as indicated.
A. COMPLETE MILLI-VOLT SYSTEM CHECk (“A” Reading – Thermostat contacts CLOSED – Control knob “ON” – Main burner should turn ON) a. If the reading is more than 100 milli-volts and the automatic valve still does not come on, replace the control.
b. If the closed circuit reading (“A” reading) is less than 100 millivolts, determine cause for low reading, proceed to Section B below.
B. Thermopile Output Reading Check (“B” Reading – Thermostat contacts OPEN – Main burner OFF) 1. Check gas pressure to the unit. If gas pressure is within minimum and maximum on data plate, then check pilot voltage, 35 millivolts minimum. If the minimum milli-volt reading is not obtainable, replace pilot.

Check Test A
B

To Test Complete System Thermopile

Connect Meter Leads to Terminals & 3
1 &

Switch or Thermostat
Contacts Closed

Meter Reading Should Be Closed

Open

33D4051

15

WARNING

VFS & DBX Series Vent Free Fireplaces
Do not operate the unit without the screen frame panel and canopy installed.
REMOVE SCREEN
1. Remove bottom louver. Figure 16 2. Removing fireplace screen frame panel by pushing
screen frame panel up and out. Figure 16 NOTE: Fireplace screen must be removed to access log box and to install canopy.

FINAL INSTALLATION
Canopy Fireplace Screen

Figure 16 –

Louvre

Remove Fireplace Screen Panel

FP513

INSTALL CANOPY
1. Push louvers up and out to remove top louver assembly.
. Align the black canopy with the holes in the top frame assembly. Figure 17
3. Install the three (3) screws (in owner’s manual packaging) which attach the canopy to the top frame assembly. Figure 17
4. Tighten all screws. Make sure the canopy is level and secure. Install top louver assembly.

Figure 17 Install Canopy

Screws

Canopy

FP514

16

33D4051

LOG PLACEMENT

VFS & DBX Series Vent Free Fireplaces

WARNING

Before you begin — This unit is supplied with six (6) ceramic fiber logs. Do not handle these logs with your bare hands. Always wear gloves to prevent skin irritation from ceramic fibers. After handling the logs, wash your hands gently with soap and water to remove any traces of fibers.
The positioning of the logs is critical to the safe and clean operation of this heater. Sooting and other problems may result if the logs are not properly and firmly positioned in the appliance. Never add additional logs or embellishments such as pine cones, vermiculite or rock wool to the heater. Only use the logs and TPB-RW (rock wool) supplied with the unit.
Failure to position the parts in accordance with diagrams below or to use only parts specifically approved for this heater may result in property damage or personal injury.

CAUTION

DO NOT sprinkle volcanic rock on the logs or around the pilot or the main burner. This may cause sooting. Only place volcanic rock on the floor of the fireplace.
During initial operation of the new heater, burning logs will give off a paper burning smell and orange flames will be present. Simply open the windows for a few hours to vent the odor.

24VFSC LOG PLACEMENT
Figure 18
1. Install the rear log (#3) on back of burner. . Install the right log (#1) on burner pins on right side of
burner. 3. Install the left log (#) on burner pins on left side of
burner.

Left Log #

Right Log #1

Rear Log #3

33D4051

Burner Pins
Figure 18 24VFSC Log Placement

Burner Pins
LG699
17

VFS & DBX Series Vent Free FireLplOacGes PLACEMENT

32VFSC LOG PLACEMENT

Rear Log #3

Figure 19
1. Install front right log (#1) on two pins on right side of burner.

Left Middle Log #5

. Install left front log (#) on two pins on left side of burner.

3. Install back log (#3) on back of burner.

4. Install right middle log (#4) on two pins on burner. Rest Left Front

right end of right middle log on the right front log.

Log #

5. Install left middle log (#5) on two pins on burner. Rest

left end of left middle log on left front log.

Pins

Figure 19 32VFSC Log Placement
Pins

Right Middle Log #4 Right Front Log #1
Pins

DBX24C LOG PLACEMENT
Install one-piece log on two burner pins. Figure 20
One-piece Log
Burner Pin

Burner Pin Figure 20 24BDXC Log Placement
18

LG701

WARNING

LG700
Pins
PLACE ROCk WOOL
24VFSC and 32VFSC MODELS After installing logs, pull apart dime-size pieces of rock wool. Sprinkle rock wool evenly over burner ports. Wash hands after installing rock wool. Itching may occur.
Dime Sized Rockwool Pieces Figure 21 Place Rockwool 24VFSC/32VFSC
· Use only rock wool provided with log set.
· Do not add additional rock wool. · Place rock wool on burner ports only. · keep air gap between rear log and
burner clean. 33D4051

FLAME APPEARANCE

VFS & DBX Series Vent Free Fireplaces

Flames from the pilot, front and rear burner should be visually checked as soon as the heater is installed. In addition, periodically check the flames visually during operation.
CHECk THE PILOT FLAME
The pilot flame must always be present when the heater is in operation. It should just touch the top of the thermocouple tip for natural. Refer to Figures 22 & 23 for correct pilot flame. If the pilot flame does not touch the thermocouple, then the main burner cannot function reliably. Refer to Figures 22 & 23 for incorrect shape of pilot flame.
MILLI-VOLT CONTROL

Thermocouple for Natural Gas

Thermocouple for LP
Correct Pilot Flame Appearance Figure 22 Millivolt Control Pilot Flame Appearance

FP7

Thermocouple for LP
Incorrect Pilot Flame Appearance

FP73

MANUAL & HI/LO CONTROL

Thermocouple for Natural Gas

Thermocouple for LP

Thermocouple for Natural Gas

Thermocouple for LP

Correct Pilot Flame Appearance Figure 23 Manual & Hi/Lo Control Pilot Flame Appearance
33D4051

Incorrect Pilot Flame Appearance

FP50

19

VFS & DBX Series Vent Free Fireplaces
CHECkING BURNER FLAME
24VFSC and 32VFSC MODELS In normal operation at full rate after 15 minutes, the following flame appearances should be observed: Burner will have a random pattern of yellow flames. Figures 24 and 25. There should be glowing embers in front of burner.
DBX24C MODEL In normal operation at full rate after 15 minutes, the following flame appearances should be observed:
The flames inside the one-piece log may be yellow. The flames should extend approximately ” – 4″ above the log. Figure 26
NOTE: The front flames and embers will be an opaque orange color during the burn off time.

FLAME APPEARANCE

Figure 24 24VFSC Log Flame Appearance

LG703

2″ – 4″

Figure 25 32VFSC Log Flame Appearance

LG704

Figure 26 DBX24C Log Flame Appearance

OPERATING INSTRUCTIONS
Avoid any drafts that alter burner flame patterns. Do not allow fans to blow directly into the fireplace. Do not place a blower inside the burn area of the firebox. Ceiling fans may create drafts that alter flame patterns. Sooting and improper burning will result.
During manufacturing, fabricating and shipping, various components of this appliance are treated with certain oils, films or bonding agents. These chemicals are not harmful, but may produce annoying smoke and smells as they are burned off during the initial operation of the appliance, possibly causing headaches or eye or lung irritation. this is a normal and temporary occurrence.
The initial break-in operation should last two to three hours with the burner at the highest setting. Provide maximum ventilation by opening windows or doors to allow odors to dissipate. Any odors remaining after this initial break-in will be slight and will disappear with continued use.
This appliance must not be used with glass doors in the closed position. This can lead to pilot outages and severe sooting outside the fireplace.
0

LG705

33D4051

OPERATING INSTRUCTIONS

VFS & DBX Series Vent Free Fireplaces

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 automatically lights the pilot. If piezo is not working properly, refer to match Lighting Instructions, Page 25.
B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS: · Do not attempt to light any appliance. · Do not touch any electric 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 fire department.
C. Use only your hand to push in, or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, don’t try to repair it. Call a qualified service technician. Force or attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part of it has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control that has been under water.

Control Knob Piezo Ignitor

Figure 27 VFSC/DBXC Controls

On/Off Switch

FP407

33D4051

1

VFS & DBX Series Vent Free Fireplaces

OPERATING INSTRUCTIONS

MANUAL CONTROL LIGHTING INSTRUCTIONS

1. STOP! Read the safety information.

. Make sure the manual shutoff valve is fully open.

3. This heater is equipped with an ignition device (piezo) which automatically

lights the pilot.

Rotate

4. Refer to Page 21, Figure 22 for the location of the piezo ignitor and control

knob. Push in gas control knob slightly and turn control knob clockwise

to the OFF position. NOTE: Knob cannot be turned to OFF unless knob is pushed in slightly. Do

not force.

5. Wait 5 minutes to clear out any gas. Then smell for gas, including near the Figure 28 –

floor. If you smell gas STOP! Follow the instructions under “What to Do if You Smell Gas”, Page 21. If you do not smell gas, go to the next step.

IGN Position

6. From OFF position, push in gas control knob slightly and turn counterclock-

wise

to the IGN position. Figure 28. Push in and hold control knob for 5

seconds. NOTE: If you are running the heater for the first time, it will be necessary to

Rotate

press in the control knob for 30 seconds to allow air to bleed out of the gas

piping.

7. With the control knob pushed in, push and release the piezo ignitor button to

light the ODS pilot. The pilot is located on the left side of the heater, behind

the middle log and in front of the back log. If piezo ignitor does not light the pilot, refer to “Match Lighting Instructions”, Page 25.

Figure 29 HIGH Position

8. Hold the control knob in for an additional 10 seconds to prevent the ODS pilot

from shutting off the gas while the thermocouple is warming up.

9. Release the control knob.

· If the knob does not pop out when released, stop and immediately call your service technician or gas supplier.

Rotate

· If the ODS pilot will not stay lit after several tries, push and turn the gas

control knob clockwise

to OFF and wait 15 seconds. Repeat steps 6

through 9.

10. Push in control knob and turn counterclockwise

to the HIGH setting. At

this location the control knob will pop out when positioned correctly. The knob can now be positioned at any position between HIGH and LOW. Figures 29 and 30

Figure 30 LOW Position

Push Push

Wait 30 seconds before readjusting the heater when the control knob has been turned down to a lower setting.

WARNING

TO TURN OFF GAS TO HEATER

1. Turn control knob clockwise

to OFF position to completely shut off the heater.

. If applicable: Turn off all electric power to the heater.

33D4051

OPERATING INSTRUCTIONS

VFS & DBX Series Vent Free Fireplaces

THERMOSTATIC CONTROL LIGHTING INSTRUCTIONS

1. STOP! Read the safety information .

. Make sure the manual shutoff valve is fully open.

3. This heater is equipped with an ignition device (piezo) which automatically lights the pilot. 4. Refer to Page 21, Figure 27 for the location of the piezo ignitor and control knob. Turn control knob

clockwise

to the OFF position.

5. Wait 5 minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow safety instructions under What to do if You Smell Gas, Page 22. If you do not smell gas, go to

the next step. 6. Turn the gas control knob counterclockwise

to the IGN position. Figure 31. Push in and hold

control knob for 5 seconds.

7. With the control knob pushed in and held, push and release the piezo ignitor button to light the ODS

pilot. The pilot is located on the right side of the heater, behind the front log and in front of the burner. If piezo ignitor does not light the pilot, see match Lighting Instructions, Page 25.

8. Hold the control knob in for an additional 10 seconds to prevent the ODS pilot from shutting off the gas

while the thermocouple is warming up.

9. Release the control knob.

· If the knob does not pop out when released, stop and immediately call your service technician or

gas supplier.

· If the ODS pilot will not stay lit after several tries, push and turn the control knob clockwise

to OFF. Release and wait 15 seconds. Repeat steps 6 through 9.

10. Turn control knob to any position between LOW and HIGH. The knob position controls the thermostat temperature. Figure 31

11. The heater is now in proper operation. The following procedure should be used to achieve thermostatic

control of the desired room temperature.

Figure 31 Control Knob

a. Operate unit at higher setting until desired room temperature is achieved.
b. At the desired temperature, slowly turn the knob clockwise and stop rotating when flame disappears.
c. Thermostat is now set to maintain the current room temperature. d. As the room temperature decreases, the thermostat valve will open to
ignite the front and rear burner. e. When the temperature reaches its set point (knob position), the thermo-
stat valve will again shut off the burner. f. This is the normal cycle of the heater.

TO TURN OFF GAS TO HEATER

1. Turn control knob clockwise

to OFF position to completely shut off the heater.

. If applicable: Turn off all electric power to the heater.

33D4051

3

VFS & DBX Series Vent Free Fireplaces

OPERATING INSTRUCTIONS

MILLI-VOLT CONTROL LIGHTING INSTRUCTIONS

1. STOP! Read the safety information label.

. 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 25.

4. Turn gas control knob clockwise switch to OFF position.

to the OFF position, set thermostat to lowest setting and turn ON/OFF

5. Wait (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow What to Do if You Smell Gas, Page 21. If you don’t smell gas, go to next step.

6. From OFF position, turn the gas control knob counterclockwise

to IGN position. Push in control

knob for 5 seconds. NOTE: If you are running the heater for the first time, it will be necessary to

press in the control knob for 30 seconds to allow air to bleed out of the gas piping.

7. With the control knob pushed in, push in and release the piezo ignitor button to light the pilot.

8. Continue pushing the control knob in for a further 60 seconds to prevent the flame detector from shutting off the gas while the probe is warming up. Release the control knob.

9. Turn gas control knob counterclockwise

to the ON position.

10. After the pilot has been lit for one minute, the burners can be turned on. Turn the ON/OFF switch to ON position or adjust thermostat to desired setting.
11. If the gas logs will not operate, follow the instructions to turn Off Gas to Heater below and call your service technician or gas supplier.

Figure 32 Pilot

FP75

Figure 33 Control Knobs

FP518

Figure 34 Piezo

FP519

TO TURN OFF GAS TO HEATER

1. Turn control knob clockwise

to OFF position to completely shut off the heater.

. If applicable: Turn ON/OFF switch to OFF position and/or set thermostat (if present) to lowest setting.

3. If applicable: Turn off all electric power to the heater.

4

33D4051

OPERATING INSTRUCTIONS and MAINTENANCE

VFS & DBX Series Vent Free Fireplaces

MATCH LIGHTING INSTRUCTIONS

1. Remove any items necessary for easy access to the pilot (for example: logs, screens, etc.).
. 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. After control knob has been released and pilot stays lit, reinstall any items that were removed for pilot access.
4. Call a qualified service technician for repair or replacement of the piezo ignitor.

CLEANING AND SERVICING
Annual inspection and cleaning by your dealer or qualified service technician is recommended to prevent malfunction and/or sooting.
Remove fireplace screen. Carefully lower screen from mounting lugs and set aside during cleaning. See instruction manual for installation of screen. DO NOT OPERATE THE UNIT WITH THE SCREEN REMOVED.
Remove logs, handling carefully by holding gently at each end. Gloves are recommended to prevent skin irritation from ceramic fibers. If skin becomes irritated, wash gently with soap and water. See manual for correct log placement.
PERIODIC CLEANING – Refer to the parts diagram for location of items discussed below.
· Do not use cleaning fluid to clean logs or any part of heater. · Brush logs with soft bristle brush or vacuum with brush attachment. · Vacuum loose particles and dust from the front and rear burner, control and piezo covers and
grate weldment.
· Inspect and clean burner. Remove lint or particles with vacuum, brush or pipe cleaners. · External case should be dusted and wiped with a wet soapy cloth.
ANNUAL CLEANING/INSPECTION – Refer to the parts diagram for location of items discussed below.
· Inspect and clean all burner ports. · Inspect ODS pilot for operation and accumulation of lint at air intake holes. · Verify flame pattern and log placement for proper operation. · Verify smooth and responsive ignition of burner.

33D4051

5

WARNING

VFS & DBX Series Vent Free Fireplaces

TROUBLESHOOTING

If the gas quality is bad, your pilot may not stay lit, the burners may produce soot and the heater may backfire when lit. If the gas quality or pressure is low, contact your local gas supplier immediately.

OBSERVED PROBLEM
ODS/pilot lights, but flame goes out when control knob is released.

POSSIBLE CAUSE

REMEDY

1. Control knob not fully pressed in.

1. Press in control knob fully.

. Control knob not pressed in long . After ODS/pilot lights, keep control

enough.

knob pressed in for 30 seconds.

3. Manual shutoff valve not fully open.

3. Fully open manual shutoff valve.

4. Thermocouple connection loose at control 4. Hand tighten thermocouple connec-

valve.

tion until snug, then tighten 1/4 turn

more.

5. Pilot flame not touching thermocouple, 5a.Contact local gas company.

which allows thermocouple to cool, caus- 5b.Clean pilot with vacuum cleaner.

ing pilot flame to go out. This problem could

be caused by either low gas pressure, or a

dirty or partially clogged ODS/pilot.

6. Thermocouple damaged.

6. Replace thermocouple.

7. Control valve damaged.

7. Replace control valve.

Burner does not light after ODS/ 1. Burner orifice is clogged.

pilot is lit.

. Burner orifice diameter is too small.

3. Inlet gas pressure is too low.

1. Clean orifice. . Replace burner orifice. 3. Contact qualified service person.

Burner backfires during com- 1. Manifold pressure is too low.

bustion.

. Burner orifice is clogged.

Slight smoke or odor during 1. Burner orifice is clogged or damaged.

initial operation.

. Burner is damaged.

3. Gas regulator defective.

1. Contact local gas company. . Clean burner or replace burner ori-
fice. 1. Clean burner or replace burner ori-
fice. . Replace burner. 3. Replace gas regulator.

Logs appear to smoke after initial operation.

1. Vapors from paint or curing process of logs. 1. Problem will stop after a few hours

of operation. Run the heater with

the damper open if you have one,

or open a window for the first few

hours.

. Vapors or smoke continue after heater . Log heater is intended to be smoke-

has run with damper or window open for less. Turn OFF heater and call quali-

several hours.

fied service person.

Heater produces a whistling noise when burner is lit.

1. Turning control knob to HIGH position 1. Turn control knob to LOW position

when burner is cold.

and let warm up for a minute.

. Air in gas line.

. Operate burner until air is removed

from line. Have gas line checked by

local gas company.

3. Dirty or partially clogged burner orifices. 3. Clean burner or replace burner ori-

fice.

No gas to pilot.

1. LP-regulator shut down due to inlet pres- 1. Verify LP tank regulator is installed

sure too high.

and set at 11″ to 13″ w.c.

. Replace regulator on heater.

6

33D4051

REPLACEMENT PARTS

VFS & DBX Series Vent Free Fireplaces

1

3

4

5 2
6

VFSC/DBXC Firebox Parts

Ref. Description

Qty.

1. Canopy

1

. Screen Assy.

1

3. Left Firebrick (Optional)

1

4. Center Firebirck (Optional)

1

5. Right Firebrick (Optional)

1

6. Blower (Optional)

1

24VFSC 33D4000 33D4501 33D4033 33D403 33D4034 BLO4T

DBX24C 33D4000 33D4501 33D4033 33D403 33D4034 BLO4TB

32VFSC 33D5000 33D5501 33D503 33D5031 33D5033
BLOT

WARNING

33D4051

Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or personal injury.
7

VFS & DBX Series Vent Free Fireplaces
1

REPLACEMENT PARTS

14 16

3
15 5
4

10 13

13

10

12 11

5

24VFSC MILLIVOLT & MANUAL CONTROL BURNER PARTS

Ref. Description

24VFSC Millivolt

Qty.

Natural

Propane

1. Burner/Grate Assy.

1

33D4043

. Injector

1

59D006

33D4046

3. Venturi

1

58D0454

33D4058

4. Control Knob

1

—

5. Millivolt Valve

1

14D0467

14D0468

5. Manual Control Valve

1

—

6. Pressure Valve Regulator

1

14D0469

—

7. Burner to Valve Tube

1

33D4511

8. Tube Fitting, 3/8 x 5/16

1

11V0313

9. Regulator Valve Tube, 5/16

1

—

10. ODS Pilot Valve Tube, 3/16

1

49D0050

11. Piezo Ignitor

1

14D0503

1. Peizo Wire

1

00K063

13. ODS Pilot Assy.

1

14D0473

14D0477

14. Left Log #1

1

33D4040

15. Right Log #

1

33D4041

16. Rear Log #3

1

33D4039

17. Tube Nut, 3/16 (not shown)

1

—

18. Tube Ferrule, 3/16 (not shown) 1

—

19. Tube Nut, 5/16 (not shown)

1

00K0917

0. Tube Nut, 5/16 (not shown)

3

—

1. Tube Ferrule, 5/16 (not shown) 1

00K0918

. Tube Ferrule, 5/16 (not shown) 3

—

3. Flex Tube w/Fittings (not shown) 1

0H00

4. 8 Grams Rock Wool Bag

1

(not shown)

58D0443

8

2 7
9 8
6

24VFSC Manual

Natural

Propane

33D4043

59D006

33D4046

58D0454

33D4058

18D0603

—

30D001

30D00

4D0305

4D0306

33D4513

11V0313

33D451

49D0050

14D0503

00K063

6D59

14D0476

33D4040

33D4041

33D4039

00F0077

00F0078

—

00K0917

—

00K0918

0H00

58D0443

33D4051

REPLACEMENT PARTS
1 3

11 10
4
4

9 9

5

10

8

6

32VFSC MILLIVOLT BURNER PARTS

Ref. Description

Qty.

1. Burner/Grate Assy.

1

. Injector

1

3. Venturi

1

4. ODS Pilot Assy.

1

5. Millivolt Valve

1

6. Pressure Valve Regulator

1

7. Burner to Valve Tube

1

8. Tube Fitting 3/8 x 5/16

1

9. ODS Pilot Valve Tube, 3/16

1

10. Peizo Ignitor

1

11. Piezo Wire

1

1. Right Front Log #1

1

13. Left Front Log #

1

14. Rear Log #3

1

15. Right Middle Log #4

1

16. Left Middle Log #5

1

17. Tube Nut, 5/16 (not shown)

1

18. Tube Ferrule, 5/16 (not shown)

1

19. Flex Tube w/Fittings (not shown)

1

0. 17 Grams Rock Wool Bag (not shown)

1

VFS & DBX Series Vent Free Fireplaces
14

15 16

2

13 7

12

32VFSC Millivolt

Natural

Propane

33D5050

33D5040

33D5039

58D0454

33D4058

14D0473

14D0477

14D0467

14D0468

14D0469

—

33D5511

11V0313

49D0050

14D0503

00K063

33D504

33D5043

33D5044

33D5045

33D5046

00K0917

00K0918

0H00

70D0039

WARNING

33D4051

Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or personal injury.
9

VFS & DBX Series Vent Free Fireplaces
2 8
1
7 9
3 4

5

DBX24C T-STAT BURNER PARTS

Ref. Description

Qty.

1. Burner

1

. Injector

1

3. ODS Pilot Valve Tube, 3/16

1

4. ODS Pilot Assy.

1

5. T-Stat Control Valve

1

6. Pressure Valve Regulator

1

7. Peizo Wire

1

8. Burner Valve Tube, 1/4

1

9. Piezo Ignitor

1

10. Front Log #1

1

11. Tube Nut, 1/4 (not shown)

1

1. Tube Ferrule, 1/4 (not shown)

1

13. NPT Tube Fitting, 3/8 x 1/ (not shown) 1

14. Flex Tube w/Fittings (not shown)

1

15. Modulating Screw (Min. Flow) (not shown) 1

16. NPT Tube Fitting, 3/8 x 1/4 (not shown) 1

30

REPLACEMENT PARTS

10 6

DBX24C T-Stat

Natural

Propane

33D0070

33D0071

18D053

33D081

49D0050

6D59

14D0476

11V0701

4D0305

4D0306

00K063

33D4053

18D040

33D504

00F0079

00F0080

18D0310

0H00

97057

11V031

33D4051

OPTIONAL ACCESSORIES

VFS & DBX Series Vent Free Fireplaces

FORCED AIR kIT If you are installing the forced air kit (Models BLO4-T, BLO4-TB or BLOT), see the installation instructions provided with the kit for electrical wiring requirements or the blower installation section.
Model 4VFSC uses blower model BLO4T. Model 3VFSC uses blower model BLOT. Model DBX4C uses blower model BLO4TB.
The firebox must be connected to main power supply at time of firebox installation. The blower must be installed prior to the installation of the unvented heater. The electrical connections must be made before the firebox is framed and enclosed in the finished walls.
BRASS LOUVERS
Optional brass louvers may be installed in place of the factory installed black louvers. See installation instructions provided with the brass louvers.
FIREBRICkS
Optional firebrick kits can be installed. See installation instructions provided with kit or Page 32.

Electrical connections should only be performed by a qualified, licensed electrician, main power must be off when connecting to main electrical power supply or performing service.

CAUTION

33D4051

31

VFS & DBX Series Vent Free Fireplaces
INSTALLING OPTIONAL FIREBRICk PANELS
1. Remove optional firebrick panels from packaging. Check that you have the following:
· 3 firebrick panels · two () retainer brackets · two () black screws
If any part or parts are missing, contact dealer where you bought fireplace. . Turn off fireplace and allow to cool. 3. Remove fireplace screen, Page 16, Figure 16 and logs. 4. Place rear firebrick panel on back wall of firebox. Set bottom of panel behind the bracket tabs of the grate. Figure 35 5. Place one of the side firebrick panels in cabinet. Line up the hole in the retainer clip with the hole inside the firebox. Using Phillips screwdriver, attach the retainer bracket to inside of firebox. Figure 36 6. Repeat step five for the other firebrick side panel.
Rear Firebrick Panel

OPTIONAL ACCESSORIES
Hole
Retainer Clip

Side Firebrick

Panel

Screw

Figure 36 Install Side Firebrick Panel

FP51

BLACk TRIM INSTALLATION
24VFSC/DBX24C
1. Remove black trim from protective packaging. Remove four (4) black screws and two () 90° angle trim brackets from owner’s manual packaging.
. Lay trim on floor and match corners of side trims to top trim. Figure 37

Figure 35 –

Bracket Tabs

Install Back Firebrick Panel

3

FP50

FP5

Figure 37 Match and Join Corners of Black Trim with Trim Brackets

To Separate Trim

FP53
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OPTIONAL ACCESSORIES
3. Use one 90° angle trim bracket to join the corner of one piece of side trim to the corner of the top trim piece. Figure 37. A rubber hammer or handle of a claw hammer will help secure the corners.
4. Repeat for other side. NOTE: If you do not attach the trim at the correct corners, use a hammer and screwdriver to tap on the one end of the 90° angle bracket. This will separate the two pieces of trim. Figure 38
5. Place assembled black trim on front of heater. Using four (4) black screws, secure black trim to sides of heater. Figure 38

VFS & DBX Series Vent Free Fireplaces

45° Angled Corners
Back of Trim Assembly
Figure 39 Align Corners of Trim Pieces

FP55

Bracket

Bracket Screws

Black Trim

FP54

Holes for Black Screws
Black Screw Figure 38 Attach Assembled Trim to Fireplace
BLACk TRIM INSTALLATION
32VFSC
1. Remove trim from protective packaging. Be careful not to scratch the trim. Remove two () 90° angled mounting brackets and two () 90° angled shims.
. Lay trim face down on the floor. Line up the 45°-angled corners of the top trim with the 45°-angled corners of the side trims. NOTE: Both ends of the top piece of trim are mitered. Figure 39
3. Slide one (1) 90° angled bracket (with attached screws) and one (1) 90° angled shim in the outside corner slot where the top and side trims meet. Figure 40

Outside Corner Slot

Shim Figure 40 Secure Corners

No Spaces Where Corners Join
Ensure Corners are Flush

FP56

4. Hold the corners together securely. Tighten screws on bracket with flat head screwdriver. Make sure the corners are flush and there are no spaces. Do not over tighten screws. Figure 40
5. Repeat for other side trim.
6. Slide assembled trim over the top and down the sides of the fireplace. Flush trim with front of fireplace as shown in Figure 41.
7. Align holes in assembled trim with holes in side of fireplace. Using a Phillips screwdriver, attach trim with four (4) screws provided — two for each side of fireplace. Tighten snuggly. Figure 42

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VFS & DBX Series Vent Free Fireplaces

Assembled Trim

OPTIONAL ACCESSORIES

Trim Flush with Front of Fireplace
Figure 41 Slide Assembled Trim Over Top of Heater

FP57

Screws
Figure 42 Secure Trim to Fireplace 34

Screw

Holes

FP58

Screw

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LIMITED LIFETIME WARRANTVYFSP&ODBLXICSerYies Vent Free Fireplaces
LIFETIME WARRANTY The following components are warranted for life to the original owner, subject to proof of purchase: Firebox, Combustion Chamber, Heat Exchanger, Grate and Stainless Steel Burners.
FIVE YEAR WARRANTY The following components are warranted for 5 years to the original owner, subject of proof of purchase: Ceramic Fiber Logs, Catalytic Filter and Aluminized Burners.
BASIC WARRANTY
MHSC warrants the components and materials in your gas appliance to be free from manufacturing and material defects for a period of one year from date of installation. After installation, if any of the components manufactured by MHSC in the appliance are found to be defective in materials or workmanship, MHSC will, at its option, replace or repair the defective components at no charge to the original owner. MHSC will also pay for reasonable labor costs incurred in replacing or repairing such components for a period of one year from the date of installation. Any products presented for warranty repair must be accompanied by a dated proof of purchase.
This Limited Warranty will be void if the appliance is not installed by a qualified installer in accordance with the installation instructions. The Limited Lifetime Warranty will also be void if the appliance is not operated and maintained according to the operating instructions supplied with the appliance, and does not extend to (1) firebox/burner assembly damage by accident, neglect, misuse, abuse, alteration, negligence of others, including the installation thereof by unqualified installers, () the costs of removal, reinstallation or transportation of defective parts on the appliance, or (3) incidental or consequential damage. All service work must be performed by an authorized service representative.
This warranty is expressly in lieu of other warranties, express or implied, including the warranty of merchantability of fitness for purpose and of all other obligations or liabilities. MHSC does not assume for it any other obligations or liability in connection with the sale or use of the appliance. In states that do not allow limitations on how long an implied warranty lasts, or do not allow exclusion of indirect damages, those limitations of exclusions may not apply to you. You may also have additional rights not covered in this Limited Warranty.
MHSC reserves the right to investigate any and all claims against the Limited Warranty and decide upon method of settlement.
IF WARRANTY SERVICE IS NEEDED…
1. Contact your supplier. Make sure you have your warranty, your sales receipt and the model/ serial number of your MHSC product.
. DO NOT ATTEMPT TO DO ANY SERVICE WORK YOURSELF.

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MHSC
149 Cleveland Drive · Paris, Kentucky 40361 www.mhsc.com