Luxor MB-42 Installation and Owner's Manual

Brand: Luxor

Model: MB-42

Type: Installation and Owner's Manual

Direct Vent Gas Fireplaces

Model MB-42

Canadian Fire Hearth Mfg

7075 Beatty Dr., Mission, B.C. Canada V2V-6C4

Installation and Owner’s Manual

PLEASE READ INSTRUCTIONS CAREFULLY BEFORE

INSTALLING AND OPERATING THE APPLIANCE

WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result

causing property damage, personal injury, or loss of life.

Installation and service must be performed by a qualified installer, service agency, or the gas supplier.

This appliance may be installed in a permanent home, and is suitable for bedroom or sitting room.

FOR YOUR SAFETY

DO NOT store or use gasoline or any other

flammable vapors or liquids within the vicinity

of this or any other appliance

IN THE EVENT THAT YOU SMELL GAS

Do not try to light any appliance

Do not touch electrical switches

Do not use any phone in your building

Call your gas supplier from a neighbor’s phone and

follow the gas supplier’s instructions

If you cannot reach the gas supplier, call the fire

department

PLEASE NOTE: This product has been manufactured using steel and screws. As a result, there are many sharp edges that can easily

cut exposed skin. It is highly recommended that you wear proper protective gloves while installing the unit, and during routine

cleaning or maintenance.

Installer: Please leave this manual with the customer

Customer: Please keep instructions for future reference

CONGRATULATIONS

Welcome to Our Luxor Gas Fireplace Family

We hope you’ve had an easy and enjoyable time choosing from our line of products, and we certainly appreciate your business.

Please take some time to read through the following information, and make sure to heed all of the warnings. Even though our

fireplaces are easy to install and simple to operate, they are still gas burning units with some inherent dangers if not careful.

Date Purchased:_____________________________

Dealer:__________________________________________________________________

Installer:________________________________________________________________

Phone:_________________________________ Serial Number:____________________

Pre-Start Up Checks

FOR YOUR SAFETY – Read before lighting

DO NOT: Use tools to operate controls. Use only your hand to push in and turn controls.

DO NOT: Abuse glass doors by striking or slamming shut.

DO NOT: Clean the appliance when hot.

DO NOT: Use this appliance if you smell gas.

DO NOT: Use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance

and replace any part of the control system and any gas control which has been under water.

GAS SUPPLY

ONLY PERSONS LICENSED TO WORK WITH GAS PIPING MAY MAKE THE NECESSARY GAS CONNECTION TO THIS

APPLIANCE. YOU ARE NOW READY TO HOOK UP THE GAS SUPPLY. BE SURE GAS PLUMBING INSTRUCTIONS

AND ALL PROVINCIAL AND LOCAL CODES ARE CAREFULLY FOLLOWED. USE APPROVED FLEXIBLE GAS

CONNECTIONS OR RIDGID PIPING, DEPENDING ON PROVINCIAL AND LOCAL CODES, TO ATTACH BURNER TO GAS

SUPPLY. BE SURE TO USE PROPER SIZE GAS SUPPLY LINE. CAREFULLY CHECK ALL CONNECTIONS FOR GAS

LEAKS WITH SOAP AND WATER SOLUTION.

EACH INSTALLATION MUST CONFORM TO ALL LOCAL, PROVINCIAL, AND NATIONAL CODES. REFER TO THE

NATIONAL FUEL GAS CODE, LOCAL ZONING AND CODE AUTHORITIES FOR DETAILS ON INSTALLATION

REQUIREMENTS.

This appliance is only for use with the Natural Gas and Propane

as indicated on the rating plate.

Note: The copy in the manual is for reference only. In the event of a discrepancy, the label on the unit is to be taken as the

latest version.

Table of Contents:

General Safety (Home Owner)

Fire Extinguisher: Every home should have

at least on fire extinguisher. An approved

Class A-B-C extinguisher should be

mounted on the wall near an exit and close

to the application, but not so close that

accessibility to the extinguisher could be

blocked by a fire. Your local Fire

Department can advise you concerning the

most appropriate location.

Smoke Detectors & Carbon Monoxide

Detectors on each floor of your home to

ensure your safety. It should be located

away from the gas appliance and close to the

sleeping areas. Follow the detector’s

manufacturer’s placement installation and

maintenance instructions.

Page 1: Pre-Start Up

Page 2: General Safety & Index

Page 3: Specifications

Page 4: Framing & Clearances

Page 5: Vent Clearances

Page 6: Installing CFLK42 Cleanface Option

Page 7: Installing CFLK42T Tiless Front

Page 8: Installing CFLK42T Tiless Front

Page 9: Installing CFLK42T Tiless Front

Page 10: Venting Components

Page 11: Vertical Venting Guidelines

Page 12: Horizontal Venting Guidelines

Page 13: Exterior Venting Specifications

Page 14: Door Removal/Re-installation

Page 15: Electrical

Page 16: Planning

Page 17: Fan Installation

Page 18: Thermostat Installation

Page 19: Log Installation

Page 20: Lighting Instructions

Page 21: Replacement Parts List

Page 22: Final Checklist

Page 23: Troubleshooting

Page 24: Troubleshooting cont.

Page 25: Maintenance

Page 26: Warranty

Safety for the installer

Wear gloves and safety glasses for protection.

Exercise extreme caution when using ladders or when on roof tops.

Be aware of electrical wiring locations in walls and ceilings.

Use a back support for heavy lifting.

Vent safety

Venting must be installed according to local codes.

Electrical code

When installed, these appliances must be electrically grounded in accordance with local codes.

WARNING

•DO NOT burn ANY materials in this fireplace.

•All occupants of the home, especially children, should be alerted about the hazards of the high surface

temperature and the chance of severe burning or the possible ignition of clothing.

•Young children should be carefully supervised when they are in the same room as the appliance.

•Due to the high temperatures, the fireplace should be installed away from the furniture and draperies and out

of traffic areas.

•Nothing should ever be placed on or near the surface of the fireplace, including the top of the unit.

•Clothing or other flammable material should not be placed on or near the appliance.

•Make certain the control panel, burners, fans, and venting system are kept clean. Inspection of these systems

should be inspected annually by a qualified service technician.

•Any safety screen or guard removed for servicing the appliance must be replaced prior to operating the

appliance.

•The fireplace, under NO circumstances, should ever be modified.

•Do not operate the fireplace if damaged, or if the glass is cracked. Any repairs must be done by a certified

technician.

SPECIFICATIONS

Note: Always check appliance label for correct information.

MODEL: MB-42 Natural Gas Manifold Pressure

1.6-3.5in w.c. 6.0-10.0in w.c.

Min. Supply pressure 5.0in w.c. 11in w.c

for purpose of input adjustment

Max Supply pressure 11in w.c. 13in w.c.

Orifice size #40 #56

Nominal input rating 26,500 BTU/hr Heater Rated

High altitude (US) 0-2000ft / 0-610m

High altitude (Canada) 0-4500ft / 0-1370m

Primary Air Opening

Electrical Rating 115 volts 0.7 amp 60hz

Steady State Efficiency 54.42%

P.4.1 Annual Fireplace Efficiency 53.64%

Circulating fan (optional) Variable Speed

Vent System Direct Vent

Log Set Ceramic Fibre

Glass Tempered

Louvers (optional) Black, Stainless Steel

Clean Face Kit (optional) Black

Please Note: Only products supplied by the manufacturer may be used in the installation of this appliance.

The Luxor MB42 is a direct vent gas appliance utilizing an inclined vent for superior installation flexibility. It enables

either horizontal or vertical vent installation without labouring to convert over a dual type unit or having to purchase a

dedicated vent configuration.

Certification

The Model MB-42 is listed and certified for installation in the U.S.A. and Canada under the

following standards:

ANSI Z21.50/CSA 2.22.

The installation must conform with local codes or, in the absence of local codes, with the

National Fuel Gas and Propane Installation Code, ANSI Z223.1 / NFPA 54 in the US or the

Natural Gas and Propane Installation Code, CSA B149.1 in Canada.

Please contact Canadian Fire Hearth Manufacturing if you have any questions regarding the certification of this

appliance.

Framing and Clearances

width 42

”

Back Width 34”

Depth

14”

36”tall

MB-42 Dimensions

Zero Corner

Clearance

Mantle clearances

*Unit to 3/4” trim is 8”

10”

6” mantle

10” mantle

¾” mantle

6”

8”

Note: Make sure that you allow for installation of any

wiring, such as the fan, remote control or wall switch

before applying finishing material.

The following diagram shows a typical framed installation.

All clearances must be adhered to. Combustible material

such as timber must not be placed any closer to the

appliance than the stand-offs allow.

Maintain required clearance around the vent pipe (see page

5).

Combustible material: Such as wood, compressed paper,

plant fibers, plastics or any material capable of igniting and

burning.

Appliance Finished Enclosure Dimensions

Corner installation Dimensions

Two sets of dimensions apply.

Standard Install A140cm/-55” B-100cm/39 ½”

Cleanface Install A-148cm/58 ½ B- 105cm/41¼”

Standard louver Unit Cleanface Cleanface Tileless

A Width of Across Opening 42.5" 42.5" 43.75"

B Height of Shelf from Appliance bottom 45" 55" 55"

C Appliance bottom to Non-combustible 36" 36" 35"

D Non-combustible panel height 9" 19" 20"

E Total depth of lintle (including wall board) 14" 16.5" 16.5"

F Termination center from appliance bottom 42" 42" 42"

8”

Non combustible

Clearance To Adjacent Sidewalls

The MB42 can be fitted with 0” Sidewall clearance in

either standard louvered or Cleanface installations. If

one of the Cleanface Surrounds is used framing

should be offset 2 ¼” to accommodate the addition

front width.

Inside framed size 11” X 11”for termination:

-use

CFH Part No. RV58, Weatherguard model

with 1” flange RVF58.

Please note: Wall thimble (Part No. WT58) must

be used for horizontal terminated installations.

Note: This fireplace does not require a hearth

extension and may sit directly on combustible

materials

Vent Clearances

Note: Make sure that you allow for installation of any

wiring such as the fan remote control or wall switch before

applying finishing material.

firestop

38"

the appliance m ust be left free of any

minimum

1" rear clearance

Enclosure space around and above

15.5"

0" if Non-combustible

such as brick or stone

Minimum termination op

10" x 10" inside to inside w

passin

throu

h combusti

exterior wall. Wall Thimble

(

Part # 942

)

must be used

obstruction.

if made of combustible

45"

min. Louvred unit

55" for Cleanface units

clearance to shelf

material

•The following diagram shows a typical framed installation.

All clearances must be adhered to. Combustible materials such

as timber must not be placed any closer to the appliance than

the stand-offs allow.

•Maintain required clearance around the vent pipe:

Horizontal -1” bottom, 1” sides, 2”top

Vertical – 1” around (with the exclusion through the firestop)

•Combustible material: Such as wood, compressed paper, plant

fibers, plastics or any material capable of igniting and burning,

whether flame proofed or not, plastered or un-plastered.

Use a firestop

whenever vent pass

through an overhead

floor or ceiling

Use a support box

on exposed vent

Use a roof flashing

and Storm Collar

whenever vent passes

through the roof

Corner Installation

For corner rigid vent installation two 30 degree Elbows are

required. Wall thickness exceeding 2” X 4” construction may

require an additional extension pipe.

Installation of Clean Face Kits Models CFLK42 & CFLK42T

self tapping screws in

pre-drilled holes.

The Optional CFLK-42 Cleanface surround must be

attached onto the MB42 Fireplace unit before

installation. Each CFLK42 includes 4 self tapping

screws which are used to secure the side panel to the

left and right faces of the MB42 as shown. As note

in the photo the larger horizontal panel is on the top

Once the CFLK42 or CFLK42T Tile front has been

attached and the unit installed into the new construction

A non combustible panel must be fastened above the

unit. Part No. CFLK42/TNBC

Non combustible panel is installed Here

Overlap side so it is flush

with the opening as shown.

Lip goes at the

top as shown.

Finishing Cover is set in place at completion of installation

Installation for Cleanface CFLK42T Tileless front

Please note that the top of the

frame is the panel with the

folding metal end tabs

1) Align frame so that the

inside flanges slide

into the chassis off the

fireplace opening. The

metal tabs on the

bottom of the flanges

are for the purpose of

fastening the bottom

as shown in the

illustration. A tapping

screw is required for

each side.

3) Once the frame is secured on the fireplace the top

end tabs need to be folded up 90 degrees. A pair of

pliers will be required.

4) After the Assembly is set in place the eight (8)

wood screws are used to secure the unit to the wood

framing. A non combustible panel must be

fastened above the unit.

2) Frame top is secured to the fireplace with three

tapping screws. The holes for the screws are

accessed through the three 5/8” round opening.

5) After completion of Installation the Control Compartment cover must be installed.

Place the two end hooks on the locating tabs of the Fireplace chassis as pictured

Venting Components

WARNING: This gas appliance must not be connected to a chimney flue serving a separate solid-fuel burning

appliance.

Before unit installation provisions for adequate combustion and ventilation

must be made.

Component List for Rigid Pipe installations using

Simpson DuraVent© products.

Please Note: Flex Pipe requirements are

UL, ULC rated comprises of 2 X .005 wall

thickness of type 3003 Aluminum or

better. MB-42 utilizes 8” and 5”

diameters.

Simpson DuraVent

*58DVA-E30 30

° elbow (vertical)

*58DVA-E60 60° elbow (horizontal)

*58DVA-06 6” length of pipe

*58DVA-09 9” length of pipe

*58DVA-012 12” length of pipe

*58DVA-024 24” length of pipe

*58DVA-036 36” length of pipe

*58DVA-048 48” length of pipe

58DVA-HC Horizontal Square termination Cap

58DVA-E45

45° elbow

58DVA-E90 90° elbow

58DVA-WFS Wall Firestop

58DVA-FS Ceiling Firestop

58DVA-F6 Roof Flashing 0-6/12 pitch

58DVA-SC Storm Collar

58DVA-VCH High Wind Vertical Termination

58DVA-WS Wall Strap

Seal all the venting and air intake pipe joints properly sealed to avoid any leaks of flue products into the living

space. This includes the joint between the fireplace and the air inlet / vent pipe and the joint between air inlet /

vent pipe and the termination. Only products designed for fireplace installations should be used for sealing.

MB42 Venting Vertical Termination

Special Note for all Rigid Pipe Vent installations

Depending on the configuration starting at the rear of the fireplace either a 60

° or 30° elbow will be required to allow proper

alignment of subsequent piping:

*60° required for horizontal direction first

*30° required for vertical direction first

IMPORTANT

Installations requiring a vertical vent run in excess of 8 feet require a vent restrictor supplied with the unit. This is a 8” metal ring

with holes which must be installed into the air portion of the coaxial vent. It should be inserted into the unit prior to final venting

installation. When installing a maximum vertical run combined with the maximum horizontal run

Vent Restrictors p/n MBR42-3 & MBR42-6

Venting configuration can utilize a maximum of 4-90°

or 4-45° elbows

Maximum vertical is 36 feet. Maximum vertical for LP

is 20ft. Vents from 10-20ft require p/n MBR42-LP

Maximum horizontal is 20 feet.

36 ft. max.

24 ft.

12 ft.

0 ft

0 ft 20 ft.ma

3 hole intake

restrictor for

12 feet or

higher vertical

LP fuel from 6’ to a

max of 21’ requires

exhaust restrictor

MB42RLP

• Horizontal venting runs will require non-

combustible supports such as metal

strapping. Generally every six feet is

preferable.

• All Rigid vent sections and elbows utilize

twist lock type joints. The addition of two

or three sheet metal screws to each joint is

recommended to ensure connection

integrity.

2 feet maximum horizontal venting

when utilizing zero (0) vertical rise.

Seal all the venting and air intake pipe (or flex) joints properly to avoid any leaks of flue products into the living space. This includes

the joint between the fireplace and the air inlet / vent pipe and the joint between air inlet / vent pipe and the termination. Only

products designed for fireplace installations should be used for sealing.

MB42 Venting Horizontal Termination

Special Note for all the Rigid Pipe Vent installations

Depending on the configuration starting at the rear of the fireplace either a 60

° or 30° elbow will be required to allow proper

alignment of subsequent piping:

60° required for horizontal direction first

30° required for vertical direction first

IMPORTANT

Installations requiring a vertical vent run in excess of 8 feet require a vent restrictor supplied with the unit. This is a 8 inch metal ring

with three round holes which must be installed into the air portion of the coaxial vent. It should be inserted into the unit prior to final

venting installation. When installing a maximum vertical run combined with the maximum horizontal run.

Vent Restrictors p/n MBR42-3 & MBR42-6

36 ft. max.

24ft

12 ft

0 ft

20ft max.

Seal all the venting and air intake

pipe (or flex) joints properly to

avoid any leaks of flue products into

the living space. This includes the

joint between the fireplace and the

air inlet / vent pipe and the joint

between air inlet / vent pipe and the

termination. Only products

designed for fireplace installations

should be used for sealing.

A four (4) foot minimum vertical

rise must be installed to utilize the

maximum twenty (20) foot

horizontal run

Max 2 feet with no vertical rise

with NG. A ratio of 2

horizontal feet for

every one foot vertical is the

optimum vent ratio.

Venting configuration can utilize a maximum of 4-90

° or 4-45° elbows. Maximum vertical is 36 feet. Maximum horizontal is 20 feet.

Venting Continued

QUALIFIED INSTALLERS ONLY

When planning an installation it will be necessary to select the proper length of vent pipe for the particular requirements. It is important to not that,

when passing Simpson Duravent pipe through a wall thimble (p/n 942) maybe required in Canada. Check local codes. Flex pipe installations require

Mill-Pac sealant on exhaust joints. Flex pipe joints must be secured with screw fasteners in addition to sealant adhesives.

Letter CDN Installation US Installation Description

A 30cm 12” Clearance above grade, verandah, porch, deck, or balcony.

B 15cm 6” Clearance from window or door that may be opened.

C 32cm* 12.5” * Clearance from permanently closed window (to prevent condensation)

D 32cm 12.5 Vertical clearance to ventilated soffit located above the terminated

within a horizontal distance of 2 feet (60cm) from the center line of

terminal.

E 47cm* 18.5”* Clearance to unventilated soffit.

F 32cm* 12.5* Clearance to outside corner.

G 32cm* 12.5* Clearance to inside corner.

H 91cm within a height of

4.5m above the

meter/regulator

assembly

3’ within a height of 15’

above the meter/regulator

assembly.*

Clearance to each side of center line extended above meter/regulator

assembly.

I 91cm 3’* Radial clearance around service regulator vent outlet.

J 30cm 9” Clearance to non-mechanical air supply inlet to building, or the

combustion air inlet to any other appliance.

K 1.83m 3’ above if within 10’

horizontally.

Clearance to mechanical air supply inlet.

L 2.13mt 7’*t Clearance above paved sidewalk or paved driveway located on public

property.

M 30cm + 12” + Clearance under verandah, porch, deck, or balcony.

1 In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.

2 In accordance with the current ANSI 2223.1 NFPA 54, National Fuel Gas Code.

* These Numbers are only estimates. Clearances are in accordance with local installation codes and the requirements of the gas supplier.

f A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and it serves both

dwellings.

+ Permitted only if verandah, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.

NOTE: Venting terminals shall not be recessed into walls or siding.

Door Removing and Installing

WARNING: Do not abuse the appliance’s glass by striking, slamming or similar trauma. Do not use the appliance with the

door removed, glass panel cracked or broken. Only use tempered glass approved for use with this appliance. Do not use

substitute materials. Replacement of the panel should only be carried out by a licensed qualified service person.

Window Removal

1) Remove bottom and top louvers in louvered model or cover plate on Cleanface type install which ever is applicable

2) Door latch mechanisms located on the lower edge of the glass door are pulled forward then moved down

3) Holding the lower edge of the door frame pull out the door assembly 5-6” then lift up to slide the frame off the two retaining

tabs located at the top of the Fire Box Enclosure

Step#2 Releasing Door Latch

Step #3 Lifting the Glass Door Assembly

from Locator Tab

Window Re-Installation

To Re-install the Glass Door Assembly it is simply a reversal of the removal procedure. Hold the Door assembly at about a 45° angle

and line up the two top slots located on the frame top edge onto the two retaining tabs (shown in illustration). Once in the grooves, the

door should simply close down into place. If the assembly is not aligned well some adjustment to the left or the right may be required

to permit proper closure. DO NOT FORCE ASSEMBLY! When Door assembly is aligned pull latch mechanism forward and up to

secure door.

Retainin

Tab for securin

Door Assembl

Electrical

Applicable when installed.

WARNNG

Electrical Grounding Instructions

This appliance is equipped with a three pronged (grounding) plug for your protection against

shock hazard and should be plugged directly into a properly grounded three prong receptacle. Do

not cut or remove the grounding prong from this plug.

Resistor Adjustable

Thermal disk (close on rise)

Fan Motor

L1(BK)

L2 (W)

Electrical Schematic

This appliance, when installed, must be electrically grounded in accordance with local codes or, in the absence of local codes, with the

National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.1.

CAUTION: Label all wires prior to disconnection when servicing controls.

Wiring errors can cause improper and dangerous operation.

VERIFY PROPER OPERATION AFTER SERVICING

Planning

The recommended order of installation is as follows:

1 – Familiarize yourself with this manual.

2 – Check the minimum installation dimensions and vent installation.

3 – Check your local installation codes.

4 – Check you have the parts and components necessary to complete the installation.

5 – Check the gas and electrical supplies are ready.

6 – Prepare opening (remove any loose materials)

7 – Install Venting

8 – Install base unit and connect vent

9 – Connect gas and electrical supplies.

10 – Install operational components and prepared for first test fire

11 – Check to verify adequate accessibility clearance for service & proper operation

12 – Check operation of unit

13 – Take time to explain operation to customer (most call backs are caused by the customer not understanding the operation of the

unit.)

Existing Gas Supply

Before interrupting the existing gas supply it is recommended that the following be checked.

Shut down all gas appliances and carry out a pressure test to ensure there are no leaks in the system.

Before connecting the appliance to the gas supply line, double check that the appliance you have purchased is designed for the gas

type you are using. The gas type markings are located on the certification label and also on the appliance’s gas valve.

Check the gas pressure immediately upstream to ensure you will be able to supply the minimum inlet pressure for the appliance.

Check your pipe sizing to ensure sufficient volume will be supplied to the appliance.

Gas Supply Installation

Provide adequate clearance for the proper installation and checking of the gas connection.

Have your gas supplier or a qualified gas fitter run a gas supply line into the gas fireplace. The line must be properly sized and fitted

according to the installation codes. Upstream of the appliance supply connection, the fitter shall provide an easily accessible manual

shut-off valve.

The gas supply pipe should enter the appliance case through the opening at the right side. The supply pipe should be connected to the

appliance gas inlet pipe situated at the right side of the control unit. Supply line connection to the inlet pipe is 3/8 NPT.

Use only new black iron or steel pipes or copper tubing if acceptable – check local codes.

Note that in the USA copper tubing must be internally tinned for protection against sulfur compounds.

Unions in gas should be of ground joint type. Sealant used must be resistant to the action of all gas constituents including LP gas.

Sealant should be applied lightly to male threads to ensure excess sealant does not enter gas lines.

Pressure testing the supply line for leaks

The appliance and its individual shut-off valve must be disconnected from the gas supply piping system during any pressure testing of

the system at test pressures in excess of ½ psig (3.4kPa). The appliance must be isolated from the gas supply piping system by closing

its individual manual shut-off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than

½ psig (3.5kPa). Failure to do so will damage the appliance’s gas valve. Such damage is not covered by the manufacturer’s warranty.

When testing for leaks:

Make sure that the appliance is turned off.

Open the manual shut-off valve.

Test for leaks by applying a liquid detergent or soap solution to all ball joints. Bubbles forming indicate a gas leak.

Correct any leak detected immediately.

Never use an open flame to check for leaks.

The pressure test point locations are built in to the regulator that controls the burner manifold pressure. The correct pressure range is

shown in the table in the specification section of this manual. The pressure check should be made with the burner lit.

See lighting instruction section for full operating details.

Optional Fan Kit Installation

fan kit p/n FK-SG

Each kit contains:

-Fan assembly with mounting gasket

-Grounded electrical harness

-Rheostat & thermal switch

Caution: The appliance contains many sharp edges. Make sure to wear proper gloves.

NOTE: fan install in clean face

1. Shut off any electrical to the unit if applicable.

2. Remove lower louver grills:

-remove 2 fasteners

-lift up and remove from lower valve compartment.

3. Make sure the wire terminals are secured to the fan assembly.

4. Carefully slide fan assembly in from left side of valve compartment behind gas valve assembly.

5. Position fan at the rear of the unit wall. Attached magnets will secure it in place

6. Secure thermal switch into the support provision located at the bottom of the firebox.

7. Install fan speed adjustment knob with wires facing down. Attach lock nut & control knob.

8. When the final installation check is complete, insert three pronged plug into the receptacle provided at the left side of the

unit.

9. Do a final quick inspection and restore to operation.

Thermostat Installation (Not permitted in US installations)

Thermostat or wall switch installation

The burner control switch is located in the centre of the control department opening. For your convenience, the unit can also be

operated by a thermostat or a wall switch control. Millivolt thermostats are available from any authorized CFHMfg dealer. Please

note, bedroom installations require the use of a wall thermostat. Mount the thermostat or switch in the desired location and run “two

conductor thermostat wires” to the heater’s lower right hand corner, close to the gas supply line.

Note: The thermostat or wall switch MUST be rated for millivolt use.

Minimize splicing in all millivolt wiring and solder all unavoidable splices.

Thermostat Wire Information

AWG mm ft. m

22 0.6 10 3.0

20 0.8 25 7.6

18 1.0 40 12.2

16 1.3 64 19.5

14 1.6 100 30.5

Flame Quality Adjustment

Air adjustment tab is located just above the valve, which is attached to the valve tray. This venture adjustment allows for fine tuning

of the flame characteristics which may vary due to climate, altitude, and venting differences.

Thermopile

Pilot Flame

Igniter Electrode

Thermocoupl

WARNING: Incorrect adjustment of flame can lead to improper combustion which can be a safety

hazard.

Flame Types

1. Blue at the base and light

orange above. Medium

height (ideal)

2. Mostly blue with little or no

orange. Short height (too

much air)

3. Mostly yellow with little or

no blue. Long stringy flame

(no air) May result in carbon

deposits on logs & glass

Adjustment

None

Pull Out

Push In

Pilot Checks: A periodic check of the pilot and burner flames should be made. Check after the fire has been on for at least 30 minutes.

The pilot flame must cover the tip of the thermocouple and thermopile probes. If the pilot flame does not sufficiently cover the probes

it can be adjusted using the pilot adjustment screws found on the front of the gas valve. The main burner flame pattern will vary from

appliance to appliance depending on the type of installation and climatic conditions.

Log Installation

Step#1

Inspect and make certain that none of the fire holes or the pilot

are blocked before installing the log set. CAUTION: Logs are

brittle and easily damaged.

If desired distribute vermiculite and ember fibre on the burner

surface. Place it near and around the flame holes, but avoid

blocking the flame holes.

Place large log segment as shown. Left side on the burner, right

side on the rear shelf with the locating device attached.

The two small segments are placed at the front of the burner top

as illustrated. The segment with two reliefs is meant for the right

hand side to support the small “Y” log. The other log places on

the left.

The small “Y” log is placed on the right side. The large rear log

and the smaller front log have flat relief areas where the small

“Y” log will rest as shown in picture.

The last step is to place in the two remaining log pieces to

complete the set.

Step#2

Step#3

Step#4

Step#5

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Luxor MB-42 Installation and Owner's Manual

Luxor MB-42 Installation and Owner's Manual

Luxor MB-42 Installation and Owner's Manual

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