Comfort Glow CGMFN Owner's manual

Brand: Comfort Glow

Model: CGMFN

Category: Fireplaces

Type: Owner's manual

This manual is also suitable for

For more information, visit www.desatech.com

WARNING: If the information in this manual is not fol-





         





— WHAT TO DO IF YOU SMELL GAS

 

• Do not touch any electrical switch; do not use any



 



 



 -



      



UNVENTED (VENT-FREE) GAS

MINI COMPACT FIREPLACE

OWNER’S OPERATION AND INSTALLATION MANUAL

MANUAL MODELS CGMFN AND CGMFP

REMOTE-READY MODELS VGMRN AND VGMRP





Base Accessory

www.desatech.com

119315-01C2

SAFETY INFORMATION

TABLE OF CONTENTS

Safety Information ............................................... 2

Local Codes......................................................... 4

Unpacking............................................................ 4

Product Identication ........................................... 5

Product Features ................................................. 5

Optional Remote Control Accessories ................. 5

Assembly ............................................................. 5

Air for Combustion and Ventilation ...................... 6

Installation ........................................................... 9

Operating Fireplace ........................................... 18

Inspecting Burners............................................. 23

Inspecting Burners............................................. 24

Cleaning and Maintenance ................................ 24

Troubleshooting ................................................. 25

Specications .................................................... 29

Wiring Diagram .................................................. 29

Service Hints ..................................................... 29

Technical Service............................................... 29

Replacement Parts ............................................ 29

Illustrated Parts Breakdown and Parts List........ 30

Accessories ....................................................... 34

  -

-

teration, service or main-

tenance can cause in-



Refer to this manual for

correct installation and

 

For assistance or addi-

tional information con-

   





WARNING: This is an

  -

    

from the room in which





and ventilation air must

Air

for Combustion and Ven-

tilation



-

stalled in an aftermarket,*

 

 

-







   

   

   







-



known to the State of California









   -

    

    

    

    -





www.desatech.com

119315-01C 3





 Early signs of

carbon monoxide poisoning resemble the u,

with headaches, dizziness or nausea. If you

have these signs, the replace may not be

working properly. Get fresh air at once! Have

replace serviced. Some people are more af-

fected by carbon monoxide than others. These

include pregnant women, people with heart or

lung disease or anemia, those under the inu-

ence of alcohol and those at high altitudes.

 Natural and

propane/LP gases are odorless. An odor-

making agent is added to the gas. The odor

helps you detect a gas leak. However, the

odor added to the gas can fade. Gas may be

present even though no odor exists.

Make certain you read and understand all

warnings. Keep this manual for reference. It

is your guide to safe and proper operation of

this replace.

    





-







WARNING: Do not allow fans







    

   



    







SAFETY INFORMATION

Continued

 

   





   -

    



away from hot surfaces to avoid

-







-

dren when they are in the room

    

hand-held remote accessory

  











    



    

-

-



1. 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.

2. Do not place propane/LP supply tank(s)

inside any structure. Locate propane/LP

supply tank(s) outdoors.

3. If you smell gas

• shut off gas supply

• 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 re department

www.desatech.com

119315-01C4

SAFETY INFORMATION

Continued

17. Operating replace above elevations of

4,500 feet could cause pilot outage.

18. Do not operate fireplace if any log is

broken. Do not operate replace if a log

is chipped (dime-sized or larger).

19. To prevent performance problems, do not

use propane/LP fuel tank of less than 100

lbs. capacity.

20. Provide adequate clearances around air

openings.

LOCAL CODES

Install and use replace with care. Follow all

local codes. In the absence of local codes,

use the latest edition of The National Fuel

Gas Code ANSI Z223.1/NFPA 54*.

*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

State of Massachusetts: The installa-

tion must be made by a licensed plumber

or gas tter in the Commonwealth of

Massachusetts.

Sellers of unvented propane or natural

gas-red supplemental room heaters

shall provide to each purchaser a copy of

527 CMR 30 upon sale of the unit.

Vent-free gas products are prohibited for

bedroom and bathroom installation in

the Commonwealth of Massachusetts.

UNPACKING

CAUTION: Do not remove data



   -



1. Remove replace and hood from carton.

Log is wrapped and inside replace. Do

not remove at this time.

2. Remove all protective packaging applied

to replace for shipment.

3. Make sure replace includes one hard-

ware packet.

4. Check replace for any shipping damage.

If replace is damaged, promptly inform

dealer where you bought replace.

4. This replace shall not be installed in a

bathroom.

5. Do not use this replace as a wood-burn-

ing replace. Use only the logs provided

with the replace.

6. Do not add extra logs or ornaments such

as pine cones, vermiculite or rock wool.

Using these added items can cause soot-

ing. Do not add lava rock around base.

Rock and debris could fall into the control

area of replace.

7. This replace is designed to be smokeless.

If logs ever appear to smoke, turn off re-

place and call a qualied service person.

Note: During initial operation, slight smok-

ing could occur due to log curing and re-

place burning manufacturing residues.

8. To prevent the creation of soot, follow the

instructions in Cleaning and Maintenance,

page 24.

9. Before using furniture polish, wax, carpet

cleaner or similar products, turn replace

off. If heated, the vapors from these prod-

ucts may create a white powder residue

within burner box or on adjacent walls or

furniture.

10. This replace needs fresh air ventilation to

run properly. This replace has an Oxygen

Depletion Sensing (ODS) safety shutoff

system. The ODS shuts down the re-

place if not enough fresh air is available.

See Air for Combustion and Ventilation,

page 6. If replace keeps shutting off, see

Troubleshooting, page 25.

11. Keep all air openings in front and at bottom

of heater clear and free of debris. This will

insure enough air for proper combustion.

12. Do not run replace

• where ammable liquids or vapors are

used or stored.

• under dusty conditions.

13. Do not use this replace to cook food or

burn paper or other objects.

14. Never place any objects in the replace

or on logs.

15. Do not use replace if any part has been

under water. Immediately call a qualied

service technician to inspect the room

replace and to replace any part of the

control system and any gas control which

has been under water.

16. Turn off fireplace and let cool before

servicing. Only a qualied service person

should service and repair replace.

www.desatech.com

119315-01C 5

PRODUCT

IDENTIFICATION

Piezo

Ignitor

Screen

Access

Door

Log

Control

Knob

Figure 1 - Vent-Free Mini Compact

Fireplace

PRODUCT FEATURES



This replace has a pilot with an Oxygen

Depletion Sensing (ODS) safety shutoff

system. The ODS/pilot is a required feature

for vent-free room replaces. The ODS/pilot

shuts off the replace if there is not enough

fresh air.

ELECTRONIC IGNITOR



This heater has an electronic ignitor to light

heater fuel supply.

OPTIONAL REMOTE

CONTROL ACCESSORIES



There are four optional remote controls that

can be purchased separately for Remote-

Ready Models only:

• wall switch

• hand-held ON/OFF remote

• wall thermostat

• hand-held thermostat remote

See Accessories, page 34.

ASSEMBLY

WARNING: Always have



-

 



-

    



    

   







Tools Required:

• Phillips screwdriver

• 5/16" hex wrench

• slotted screwdriver

• scissors

1. Remove two screws that hold replace

screen in place for shipping. These

screws are located near top of screen.

Discard screws. Lift replace screen up

and pull out to remove (see Figure 2, page

6). Set screen aside until installation has

been completed.

2. Remove all packaging from inside of unit.

3. Remove bubble wrap from logs and

discard.

Brick

Liners

Electronic

Ignitor

Screen

Access Door

Log

Control

Knob

Brick

Liners

Remote

Control

www.desatech.com

119315-01C6

Screen

Shoulder

Screw

Figure 3 - Assembling Hood

Figure 2 - Removing and Replacing

Screen

AIR FOR COMBUSTION

AND VENTILATION

   

-

    



-



-







Today’s homes are built more energy efcient

than ever. New materials, increased insulation

and new construction methods help reduce

heat loss in homes. Home owners weather

strip and caulk around windows and doors

to keep the cold air out and the warm air in.

During heating months, home owners want

their homes as airtight as possible.

While it is good to make your home energy

efcient, your home needs to breathe. Fresh

air must enter your home. All fuel-burning ap-

pliances need fresh air for proper combustion

and ventilation.

Exhaust fans, replaces, clothes dryers and

fuel burning appliances draw air from the

house to operate. You must provide adequate

fresh air for these appliances. This will insure

proper venting of vented fuel-burning appli-

ances.





The following are excerpts from National Fuel

Gas Code. ANSI Z223.1/NFPA 54, Section

5.3, Air for Combustion and Ventilation.

All spaces in homes fall into one of the three

following ventilation classications:

1. Unusually Tight Construction

2. Unconned Space

3. Conned Space

The information on pages 6 through 8 will help

you classify your space and provide adequate

ventilation.

4. Check installation of brick liners. Brick

liners are in four pieces: 2 sides, 1 back

and 1 top.

5. Place hood under top edge of rebox

opening. Use 3 screws from hardware kit

to mount hood to rebox (see Figure 3).

ASSEMBLY

Continued

Hood

Screw

Top Trim

Panel

www.desatech.com

119315-01C 7

The air that leaks around doors and windows

may provide enough fresh air for combus-

tion and ventilation. However, in buildings of

unusually tight construction, you must provide

additional fresh air.



construction where:

 -

    

      











and

 

and

      

     





    





If your home meets all of these three

    

   Ventilation Air From

Outdoors

If your home does not meet all of the

     Deter-

mining Fresh-Air Flow For Fireplace

Location



The National Fuel Gas Code, ANSI Z223.1/

NFPA 54 defines a confined space as a

space whose volume is less than 50 ft

per

1,000 Btu/hr (4.8 m

/kw) of the aggregate

input rating of all appliances installed in that

space and an unconned space as a space

whose volume is not less than 50 ft

per

1,000 Btu/hr (4.8 m

/kw) of the aggregate

input rating of all appliances installed in

that space. Rooms communicating directly

with the space in which the appliances are

installed*, through openings not furnished

with doors, are considered a part of the

unconned space.

* Adjoining rooms are communicating only if

there are doorless passageways or ventilation

grills between them.

AIR FOR COMBUSTION

AND VENTILATION

Continued

DETERMINING FRESH-AIR FLOW







Use this work sheet to determine if you have

a conned or unconned space.

 Includes the room in which you will install

replace plus any adjoining rooms with door-

less passageways or ventilation grills between

the rooms.

1. Determine the volume of the space (length

x width x height).

Length x Width x Height =__________cu. ft.

(volume of space)

Example: Space size 16 ft. (length) x 14 ft.

(width) x 8 ft. (ceiling height) = 1792 cu. ft.

(volume of space)

If additional ventilation to adjoining room

is supplied with grills or openings, add the

volume of these rooms to the total volume

of the space.

2. Multiply the space volume by 20 to determine

the maximum Btu/Hr the space can support.

_________(volume of space) x 20 = (Maxi-

mum Btu/Hr the space can support)

Example: 1792 cu. ft. (volume of space) x 20

= 35,840 (maximum Btu/Hr the space can

support)

3. Add the Btu/Hr of all fuel burning appliances

in the space.

Vent-free replace _________ Btu/Hr

Gas water heater* _________ Btu/Hr

Gas furnace _________ Btu/Hr

Vented gas heater _________ Btu/Hr

Gas replace logs _________ Btu/Hr

Other gas appliances* + _________ Btu/Hr

Total = _________ Btu/Hr

* Do not include direct-vent gas appliances.

Direct-vent draws combustion air from the

outdoors and vents to the outdoors.

Example:

Gas water heater _________ Btu/Hr

Vent-free replace + _________ Btu/Hr

Total = _________ Btu/Hr

4. Compare the maximum Btu/Hr the space

can support with the actual amount of Btu/Hr

used.

______ Btu/Hr (maximum the space can

support)

_______ Btu/Hr (actual amount of Btu/Hr used)

Example: 35,840 Btu/Hr (maximum the

space can support)

40,000 Btu/Hr (actual amount of

Btu/Hr used)

30,000

10,000

40,000

www.desatech.com

119315-01C8

The space in the example is a conned space

because the actual Btu/Hr used is more than the

maximum Btu/Hr the space can support. You

must provide additional fresh air. Your options

are as follows:

A. Rework worksheet, adding the space of an

adjoining room. If the extra space provides an

unconned space, remove door to adjoining

room or add ventilation grills between rooms.

See Ventilation Air From Inside Building.

B. Vent room directly to the outdoors. See

Ventilation Air From Outdoors.

C. Install a lower Btu/Hr replace, if lower Btu/Hr

size makes room unconned.

If the actual Btu/Hr used is less than the maximum

Btu/Hr the space can support, the space is an

unconned space. You will need no additional

fresh air ventilation.

WARNING: If the area in which

     

    

     

    







in the National Fuel Gas Code,

ANSI Z223.1/NFPA 54 Section 5.3







This fresh air would come from an adjoining

unconfined space. When ventilating to an

adjoining unconned space, you must provide

two permanent openings: one within 12" of the

ceiling and one within 12" of the oor on the

wall connecting the two spaces (see options 1

and 2, Figure 4). You can also remove door into

adjoining room (see option 3, Figure 4). Follow

the National Fuel Gas Code, ANSI Z223.1/

NFPA 54, Section 5.3, Air for Combustion

and Ventilation for required size of ventilation

grills or ducts.



Provide extra fresh air by using ventilation

AIR FOR COMBUSTION

AND VENTILATION

Continued

grills or ducts. You must provide two perma-

nent openings: one within 12" of the ceiling

and one within 12" of the oor. Connect these

items directly to the outdoors or spaces open

to the outdoors. These spaces include attics

and crawl spaces. Follow the National Fuel

Gas Code, ANSI Z223.1/NFPA 54, Section

5.3, Air for Combustion and Ventilation for

required size of ventilation grills or ducts.

IMPORTANT: Do not provide openings for

inlet or outlet air into attic if attic has a thermo-

stat-controlled power vent. Heated air entering

the attic will activate the power vent.

Figure 4 - Ventilation Air from Inside

Building

Remove

Door into

Adjoining

Room,

Option 3

Ventilation Grills

Into Adjoining Room,

Option 2

12"

Ventilation

Grills

into

Adjoining

Room,

Option 1

Figure 5 - Ventilation Air from Outdoors

Outlet

Air

Ventilated

Attic

Outlet

Air

Inlet

Air

Inlet Air

Ventilated

Crawl Space

Crawl

Space

To Attic

www.desatech.com

119315-01C 9

INSTALLATION

NOTICE: This heater is intended

    





     -



















   



WARNING: Never install the



 

• in a recreational vehicle

• where curtains, furniture,

   



 



 

 

• in windy or drafty areas

-

    

currents move heat to wall sur-







    

    

 -



in the air exist, may discolor walls



IMPORTANT: Vent-free replaces add mois-

ture to the air. Although this is benecial,

installing replace in rooms without enough

ventilation air may cause mildew to form from

too much moisture. See Air for Combustion

and Ventilation, page 6.

Note: Your replace is designed to be used in

zero clearance installations. Wall or framing ma-

terial can be placed directly against any exterior

surface on the rear, sides or top of your replace,

except where standoff spacers are integrally at-

tached. If standoff spacers are attached to your

replace, these spacers can be placed directly

against wall or framing materials.

Note: When installing replace directly on

carpeting, tile or other combustible material,

other than wood ooring, the replace shall be

installed on a metal or wood panel extending

the full width and depth of the replace.

Use the dimensions shown for rough openings

to create the easiest installation (see Built-In

Fireplace Installation, page 10).



Use the correct gas type (natural or propane/

LP) for your unit. If your gas supply is not

correct, do not install replace. Call dealer

where you bought replace for proper type

replace.

   

-





INSTALLATION ITEMS

Before installing replace, make sure you

have the items listed below.

• external regulator (supplied by installer, for

propane/LP units only)

• piping (check local codes)

• sealant (resistant to propane/LP gas)

• equipment shutoff valve *

• test gauge connection*

• ground joint union

• sediment trap

• tee joint

• pipe wrench

* A CSA design-certied equipment shutoff

valve with 1/8" NPT tap is an acceptable al-

ternative to test gauge connection. Purchase

the optional CSA design-certied equipment

shutoff valve from your dealer. See Acces-

sories, page 34.

www.desatech.com

119315-01C10

INSTALLATION

Continued



WARNING: Maintain the

minimum clearances shown



   



     -

    



 -



-



    



If your replace is to be used with an optional

mantel, the installation instructions included

with your mantel shows an CSA approved

method of attaching the replace/mantel sys-

tem to a wall. IMPORTANT: Only use optional

cabinet or corner mantels specied in this

manual. Purchase the optional mantel from

your dealer (see Accessories, page 34).

If your replace is to be recessed into the wall,

see Built-In Fireplace Installation to secure

your replace into the wall.

CAUTION: If you install the



 



 



For convenience and efciency, install re-

place

• where there is easy access for operation,

inspection and service

• in coldest part of room





A. Clearances from the side of the replace

cabinet to any combustible material and

wall should follow diagram in Figure 6.

Example: The face of a mantel, bookshelf,

etc. is made of combustible material and

protrudes 3

" from the wall. This com-

bustible material must be 4" from the side

of the replace opening (see Figure 6).

Clearances from the top of the replace

opening to the ceiling should not be less

than 36".

C. For mantel clearances, see Figure 9 on

page 12.

Figure 6 - Minimum Clearance for

Combustible to Wall

*Minimum 16" from Side Wall

Example

MINIMUM CLEARANCE TO

COMBUSTIBLE MATERIALS



Left and



Bottom and

Rear

Front

36" 6" 0" 36"



Built-in installation of this replace involves

installing replace into a framed-in enclosure.

This makes the front of replace ush with

wall. Fireplace face will extend past sides

and top of replace approximately 1". This will

cover the rough edges of the wall opening. If

installing a built-in mantel above the replace,

you must follow the clearances shown in Fig-

ure 9, page 12. To install the replace in this

manner, use the following instructions.

www.desatech.com

119315-01C 11

INSTALLATION

Continued

Actual Framing

Height 23

/4" 22

/4"

Front Width 19

/4" 17

/2"

Depth 8

/8" 8

/8"

Bottom 0" 0"

1. Frame in rough opening. Use dimensions

shown in Figure 7 for the rough opening.

If installing in a corner, use dimensions

shown in Figure 8 for the rough opening.

The height is 22

/4" which is the same as

the wall opening above.

2. Install gas piping to replace location. This

installation includes an approved exible

gas line (if allowed by local codes) after

the equipment shutoff valve. The exible

gas line must be the last item installed on

the gas piping.

3. If you have not assembled rebox, follow

instructions on page 6.

4. Carefully set replace in front of rough

opening with back of replace inside wall

opening.

5. Attach exible gas line to replace gas

regulator. See Connecting Fireplace to

Gas Supply, page 14.

6. Check all gas connections for leaks. See

Checking Gas Connections, page 15.

Figure 8 - Rough Opening for Installing

in Corner

Figure 7 - Rough Opening for Installing

in Wall

IMPORTANT: When nishing your rebox,

combustible materials such as wall board,

gypsum board, sheet rock, drywall, plywood,

etc. may be butted up next to the sides and

top edge of the rebox. Combustible materials

should never overlap the rebox front facing.

WARNING: Do not allow any







WARNING: Do not allow

  





WARNING: Never modify or

cover the louvered slots on the



Mantel Clearances for Built-In

Installation

If placing mantel above built-in replace, you

must meet minimum clearance between man-

tel shelf and top of replace opening.



    

   

    

    



   

   

   

minimum clearances shown in



NOTICE: If your installation

does not meet the minimum

    





 -



• remove the mantel

www.desatech.com

119315-01C12

INSTALLATION

Continued

Mantel Shelf

18"

3/4"

Note:

ll vertical

measurements

are from top of

fireplace

opening to

bottom of

mantel shelf. All

measurements

are in inches.

Figure 9 - Minimum Mantel Clearances

for Built-In Installation



Refer to instructions provided with the mantel

for assembly. Refer to the following instruc-

tions for system installation. Refer to instruc-

tions on page 6 for hood assembly.

1. Assemble cabinet mantel as shown in

accessory instruction sheet.

2. Place hearth base against wall at installation

location. Cut an access hole in hearth base

to run gas line to replace (see Figure 10).

Make sure to locate access hole so cabinet

mantel will cover it when installed. Note: You

can secure base to oor using wood screws.

Countersink screw heads and putty over.

3. Route exible gas line through access

hole in hearth base.

4. Center cabinet mantel on hearth base

(see Figure 11). Make sure mantel is ush

against wall and centered left to right on

base.

5. Use hardware provided with mantel ac-

cessory to attach mantel assembly to

base (see mantel instruction sheet).

6. Attach exible gas line to replace gas

regulator. See Connecting to Gas Supply,

page 13.

7. Check all gas connections for leaks. See

Checking Gas Connections, page 15.

8. Carefully insert fireplace into cabinet

mantel (see Figure 12). Be careful not to

scratch or damage hearth base or cabinet

mantel (see manual instruction sheet.

Side of Firebox

Figure 10 - Placing Hearth Base Against Wall

Hearth

Base

Electrical

Outlet

Pipe and Gas

Shutoff Valve

Figure 11 - Installing Cabinet Mantel onto

Hearth Base

Cabinet

Mantel

Hearth

Base

Figure 12 - Installing Fireplace into

Mantel Assembly

Cabinet

Mantel

Hearth Base

www.desatech.com

119315-01C 13

INSTALLATION

Continued



-



    





   -

-





WARNING: Never connect



   

    



IMPORTANT: For natural gas, check gas line

pressure before connecting replace to gas

line. Gas line pressure must be no greater

than 14" of water. If gas line pressure is higher,

heater regulator damage could occur.

-





   







For propane/LP units, the installer must supply

an external regulator. The external regulator

will reduce incoming gas pressure. You must

reduce incoming gas pressure to between

11" and 14" of water. If you do not reduce

incoming gas pressure, replace regulator

damage could occur. Install external regula-

tor with the vent pointing down as shown in

Figure 13. Pointing the vent down protects it

from freezing rain or sleet.

Propane/LP

Supply Tank

External Regulator

Figure 13 - External Regulator With Vent

Pointing Down

Vent Pointing Down

CAUTION: Use only new,

     -





     









Installation must include an equipment shutoff

valve, union and plugged 1/8" NPT tap. Locate

NPT tap within reach for test gauge hook up.

NPT tap must be upstream from heater (see

Figure 14, page 14).

IMPORTANT: Install equipment shutoff valve

in an accessible location. The equipment

shutoff valve is for turning on or shutting off

the gas to the appliance.

Check your building codes for any special

requirements for locating equipment shutoff

valve to replaces.

Apply pipe joint sealant lightly to male NPT

threads. This will prevent excess sealant from

going into pipe. Excess sealant in pipe could

result in clogged replace valves.

    





www.desatech.com

119315-01C14

INSTALLATION

Continued

We recommend that you install a sediment

trap in supply line as shown in Figure 14. Lo-

cate sediment trap where it is within reach for

cleaning. Install in piping system between fuel

supply and heater. Locate sediment trap where

trapped matter is not likely to freeze. A sediment

trap traps moisture and contaminants. This

keeps them from going into replace controls.

If sediment trap is not installed or is installed

wrong, replace may not run properly.

* Purchase the optional CSA design-certied

equipment shutoff valve from your dealer. See

Accessories, page 34.

Figure 14 - Gas Connection

CSA Design-

Certied Equipment

Shutoff Valve With

1/8" NPT Tap*

3" Minimum

Approved

Flexible Gas

Line

Pipe Nipple Cap Tee Joint



From External

Regulator (11"

W.C.** to 14"

W.C. Pressure)

NATURAL

From Gas Meter

(5" W.C.** to

10.5" W.C.

Pressure)

Sediment Trap





Installation Items Needed

• Phillips screwdriver

• sealant (resistant to propane/LP gas, not

provided)

   

    

   

-

 

    







Figure 15 - Attaching Flexible Gas Line

to Equipment Shutoff Valve

Flexible Gas Line

from Fireplace Gas

Regulator Provided

With Fireplace

To Gas Regulator

(Manual-Controlled

Models) or Control

Valve (Remote-

Ready Models)

Equipment

Shutoff Valve



To External

Regulator

NATURAL

To Gas Supply

1. Route exible gas line, included, from

fireplace control to equipment shutoff

valve through side or rear access holes

in outer casing (see Figure 1, page 5).

2. Apply pipe joint sealant lightly to male

threads of gas connector attached to

exible gas line/equipment shutoff valve

(see Figure 15).







   





    

   

     



3. Check all gas connections for leaks. See

Checking Gas Connections.

4. Feed exible gas line into replace base

area while replacing branch support. Make

sure the entire exible gas line is in replace

base area.

www.desatech.com

119315-01C 15

INSTALLATION

Continued





and connections, internal and

external to unit, for leaks after

 







a noncorrosive leak detection

-





CAUTION: Make sure exter-



  

   

under Connecting to Gas Sup-

ply









1. Disconnect appliance with its appliance

main gas valve (control valve) and equip-

ment shutoff valve from gas supply piping

system. Pressures in excess of 1/2 psig

will damage heater regulator.

2. Cap off open end of gas pipe where equip-

ment shutoff valve was connected.

3. Pressurize supply piping system by either

opening propane/LP supply tank valve

for propane/LP gas or opening main gas

valve located on or near gas meter for

natural gas or using compressed air.

4. Check all joints of gas supply piping system.

Apply noncorrosive leak detection uid to

all joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Reconnect fireplace and equipment

shutoff valve to gas supply. Check recon-

nected ttings for leaks.





1. Close equipment shutoff valve (see Fig-

ure 16).

2. Pressurize supply piping system by either

opening propane/LP supply tank valve

for propane/LP gas or opening main gas

valve located on or near gas meter for

natural gas or using compressed air.

3. Check all joints from gas meter to equip-

ment shutoff valve for natural gas or pro-

pane/LP supply to equipment shutoff valve

for propane/LP (see Figures 17 or 18).

Apply noncorrosive leak detection uid to

all joints. Bubbles forming show a leak.

4. Correct all leaks at once.

Figure 16 - Equipment Shutoff Valve

Open

Closed

Equipment

Shutoff Valve

Figure 17 - Checking Gas Joints

(Propane/LP Only)

Propane/LP

Supply Tank

Equipment

Shutoff Valve

Gas Valve

Equipment

Shutoff Valve

Gas

Meter

Figure 18 - Checking Gas Joints (Natural

Gas Only)

Gas Regulator or

Gas Control Valve

www.desatech.com

119315-01C16

INSTALLATION

Continued



CONNECTIONS

1. Open equipment shutoff valve (see Figure

16, page 15).

2. Open main gas valve located on or near

gas meter for natural gas or open pro-

pane/LP supply tank valve.

3. Make sure control knob of replace is in

the OFF position.

4. Check all joints from equipment shutoff

valve to gas regulator (Manual-Controlled

Models) or to gas control valve (Remote-

Ready Models) (see Figures 17 or 18,

page 15). Apply noncorrosive leak de-

tection uid to all joints. Bubbles forming

show a leak.

5. Correct all leaks at once.

6. Light replace (see Operating Fireplace,

page 18). Check all other internal joints

for leaks.

7. Turn off replace (see To Turn Off Gas to

Appliance, page 20 for Manual-Controlled

Models or page 21 for Remote-Ready

Models).



REMOTE CONTROL ACCESSORIES

Remote-Ready Models Only





1. Disconnect jumper wire from control valve

(see Figure 19).

2. Locate battery clip mounted on back of

receiver (see Figure 20).

3. Slide 9-volt battery (not included)

through clip.

4. Attach terminal wires to battery (see Fig-

ure 20).

Figure 21 - Installing Remote Receiver

Remote Receiver

Figure 19 - Disconnecting Wires From

Control Valve

Figure 20 - Attaching Battery to Receiver

Battery Clip

9-Volt

Battery

Receiver

Terminal

Wires

Control

Valve

Jumper

Wire

White Wire

to TPTH

Terminal on

Control Valve

Red Wire to TH Terminal on

Control Valve



Remote Control Unit

1. Remove battery cover on back of remote

control unit.

2. Attach terminal wires to the battery (not

included). Place battery into the battery

housing.

3. Replace battery cover onto remote control

unit.

Figure 22 - Installing Battery in Hand-

Held Remote Control Unit

9-Volt Battery

Battery

Housing

Battery Cover

Terminal

Wires

Remote Control Unit

5. Connect wires from remote receiver to

control valve as shown in Figure 21.

6. Install remote receiver unit onto remote

bracket using screws provided (see

Figure 21).

www.desatech.com

119315-01C 17

INSTALLATION

Continued







WARNING: Read and fol-

  







WARNING: Do not connect

this thermostat to any electrical





1. Disconnect jumper wire from control valve

(see Figure 23).

2. Connect one terminal of 25 ft. wire to

“TPTH” terminal on control valve (see

Figure 23).

3. Connect remaining wire terminal to the

“TH” terminal on the control valve. Make

sure that wire terminals are in the positions

on your unit as pictured in Figure 23.

4. Route the 25 ft. wire to a convenient loca-

tion to mount your thermostat (no outside

wall). IMPORTANT: The wire may be

shortened but must not be lengthened.

The thermostat should be mounted 54"

above the oor in a location where there

is good air circulation. Avoid heat sources

such as lamps, direct sunlight, replace

or heat and air conditioning ducts.

5. Gently remove the cover of the thermostat

from the base. Grasp the sides of the

cover rmly and pull to separate from the

base.

6. Feed the electrical wires through the rect-

angular slots on each side of the base (see

Figure 24).

WARNING: Do not con-







7. Connect one bare wire end to each termi-

nal (“W” and “R”) of the thermostat base

(see Figure 25).

Figure 23 - Connecting Wire Terminals

One terminal

of 25 ft. wire

Control

Valve

Jumper Wire

8. Install the base onto the wall with the

provided screws.

9. Move the temperature adjustment back

and forth to insure the bimetal is free from

restrictions.

10. Replace the cover onto the base. (Upon

installation, the thermostat must be al-

lowed to stabilize at room temperature

for a minimum of 30 minutes for proper

operation).

11. Set switch on replace to Auto position.

12. Set the temperature adjustment to the

desired setting. This thermostat has been

electronically calibrated at the factory. No

adjustment or leveling is necessary.

Figure 24 - Back View of Thermostat

Base

Feed wires through rectangular slots

Figure 25 - Thermostat Base Terminals

“W” and “R”

Terminal “W”

Terminal “R”

www.desatech.com

119315-01C18





WARNING: Read and fol-

  







WARNING: Do not connect

this switch to any electrical





1. Connect one terminal of 25 ft. wire to

“TPTH” terminal on control valve (see

Figure 23, page 17).

2. Connect remaining wire terminal to the

“TH” terminal on the control valve. Make

sure that wire terminals are in the posi-

tions on your unit as pictured in Figure

23, page 17. If wires are not “crossed”

the thermostat will not work.

3. Route the 25 ft. wire to a convenient loca-

tion to mount your wall switch (no outside

walls).

WARNING: Do not connect

     

-



IMPORTANT: The wire may be shortened but

must not be lengthened.

4. Connect one bare wire end to each of the

terminals of the provided wall switch.

5. Install the wall switch and cover in the

wall.

INSTALLING LOG SET AND SCREEN

1. Remove log packaging material and discard

packaging. Gently place log over the burner

(see Figure 26). Do not allow log to contact

ame. If ame contacts log, soot will be

created.

2. Reattach screen by placing the notches

in the screen frame over the shoulder

screws and pushing down.

INSTALLATION

Continued

Log

Shoulder Screw

Screen

Figure 26 - Installing Log and Screen

OPERATING FIREPLACE

MANUAL-CONTROLLED

MODELS

FOR YOUR SAFETY

READ BEFORE LIGHTING

WARNING: If you do not fol-

low these instructions exactly,

     

-



 

     

    



     









WHAT TO DO IF YOU SMELL GAS



• Do not touch any electric switch; do



    









 





-







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119315-01C 19

OFF

PILOT

OPERATING FIREPLACE

Continued

    











LIGHTING

INSTRUCTIONS



    

    

   -



   -

    

-



    

  





    



     



  to



 

     



Follow “B” in the safety information,





    







Note:

      















 





-



Note:

Troubleshooting-



   

  

Manual Lighting

Procedure

       

     



Note:





     



    

     



CAUTION: Do not try to ad-





Figure 27 - Control Knob In The OFF

Position

Piezo Ignitor

Control Knob

Figure 28 - Natural Gas Pilot

Thermocouple

Ignitor Electrode

Pilot Burner

Thermocouple

Ignitor

Electrode

Pilot

Burner

Figure 29 - Propane/LP Gas Pilot

www.desatech.com

119315-01C20

OPERATING FIREPLACE

Continued

      

 to



TO TURN OFF GAS



  to



     



MANUAL LIGHTING



 Light-

ing Instructions

      





       

     

    

 Lighting Instruc-

tions

REMOTE-READY MODELS

FOR YOUR SAFETY

READ BEFORE LIGHTING

WARNING: If you do not fol-

low these instructions exactly,

     

-



 

-



     









WHAT TO DO IF YOU SMELL GAS



• Do not touch any electric switch; do



    









 





-







    











LIGHTING

INSTRUCTIONS





-









   





WARNING: Burner will come

on automatically within one min-

ute when control valve is in the



 



 



 -

wise      



Figure 30 - Control Knob and Ignitor

Button Location (Shown as Supplied

- No Control Options)

Control Knob

Electronic Ignitor

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Comfort Glow CGMFN Owner's manual

Brand: Comfort Glow

Model: CGMFN

Category: Fireplaces

Type: Owner's manual

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