Harman Stove Company Hb 38 Dv Users Manual

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The Harman Built Serenity III

HB 38 DV

Installation & Operating Manual

“Ce manuel est disponible en Français sur demande”

SAFETY NOTICE

PLEASE READ THIS ENTIRE MANUAL BEFORE YOU INSTALL AND USE YOUR NEW ROOM HEATER. FAILURE TO

FOLLOW INSTRUCTIONS MAY RESULT IN PROPERTY DAMAGE, BODILY INJURY, OR EVEN DEATH.

FOR USE IN THE U.S. AND CANADA. SUITABLE FOR INSTALLATION IN MOBILE HOMES

IF THIS HARMAN STOVE IS NOT PROPERLY INSTALLED, A HOUSE FIRE MAY RESULT. FOR YOUR SAFETY, FOLLOW

INSTALLATION DIRECTIONS.

CONTACT LOCAL BUILDING OR FIRE OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION INSPECTION

REQUIREMENTS IN YOUR AREA.

CONTACT YOUR LOCAL AUTHORITY (SUCH AS MUNICIPAL BUILDING DEPARTMENT, FIRE DEPARTMENT, FIRE

PREVENTION BUREAU, ETC.) TO DETERMINE THE NEED FOR A PERMIT.

CETTE GUIDE D'UTILISATION EST DISPONIBLE EN FRANCAIS. CHEZ VOTRE CONCESSIONNAIRE DE HARMAN STOVE

COMPANY.

SAVE THESE INSTRUCTIONS.

WARNING: 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.

FOR YOUR SAFETY

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this

or any other appliance.

FOR YOUR SAFETY: WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Open windows.

• Extinguish any open flame.

• 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 gas installer, service agency,

or the gas supplier.

Table of Contents

Introduction 4

Safety Precautions 4

Operation 6

Specifications 8

Installation 12

Arch Face 15

Victorian Face 16

Venting 20

Damper Settings 24

Changing to LP 25

Log Placement 27

Option Installation

Thermostat 28

Remote Control 28

Remote Register Kit 29

Maintainence 35

Wiring Diagram 37

Trouble Shooting 41

Warranty 46

Manufactured by The

Harman Stove Company

352 Mountain House Rd.

Halifax PA 17032

M:PM 65-FILES\MANUALS\HBF\hb38dvR6.p65

Introduction

The Harman Serenity III Direct Vent Gas Fire-

place is a listed gas-fired direct vent room fireplace tested

by Intertek Testing Services/Warnock Hersey to ANSI

Z21.88-2002/ CSA2.33-M02. CAN-CGA-2.17-

M91.The installation of the Serenity III Direct Vent Gas

Fireplace must conform with local codes, or in the ab-

sence of local codes, with National Fuel Gas Code,

ANSI Z223.1 — latest edition and CAN 1 B1-149.1

and .2 Installation Code.

Also for use in mobile (manufactured) homes after

home is sited.

Mobile (manufactured) home installations must

adhere to current editions of Title 24 CFR, part 3280,

or CSA Z240.4.

CAUTION: This appliance must be vented to the

outside.

Installation and repair of the Serenity III Direct Vent

Gas Fireplace should be done by a qualified service per-

son. The appliance should be inspected before use and

at least annually by a qualified service person. More fre-

quent cleaning may be required due to excessive lint from

carpeting, bedding material, etc. It is imperative that

control compartments, burners, and circulating air pas-

sageways of the Serenity III be kept clean.

When operating your Harman Serenity III Gas Fire-

place, respect basic safety standards. Read these in-

structions carefully before you attempt to operate the

fireplace. Failure to do so may result in damage to prop-

erty or personal injury and may void the product war-

ranty.Consult with your local building code agency and

insurance representative before you begin your installa-

tion to ensure compliance with local codes, including the

need for permits and follow-up inspections.

Several issues must be addressed when selecting a

suitable location for your Serenity III Gas Fireplace. Ob-

serving required clearances to combustible materials, the

proximity to a safe chimney or venting system location,

and the accessibility of the gas and electrical supply must

all be considered. In addition, selecting a location that

takes advantage of the building's natural air flow is also

desirable to maximize the heating effectiveness of the

fireplace. In many cases, this is a central location within

the building.

Due to high temperatures, the Serenity III

Direct Vent Gas Fireplace should be located out

of traffic and away from furniture and draperies.

Children and adults should be alerted to the

hazards of high surface temperatures and should

stay away to avoid burns or clothing ignition.

Young children should be carefully supervised

when they are in the same room as the appliance.

Clothing or other flammable materials should

not be placed on or near the appliance.

Surveiller les enfants. Garder les vetements,

les meubles, lessence ou autres liquides a

vapeur inflammables lin de lappareil.

This appliance may be installed in an aftermar-

ket permanently located (mobile) home, where not

prohibited by local codes.

This appliance is only for use with the type(s)

of gas indicated on the rating plate. This appliance is

not convertible for use with other gases, unless a

certified kit is used.

Cet appareil peut etre installe dans un maison

prefabriquee (mobile) deja installee a demeure si les

reglements locaux le permettent.

Cet appareil doit etre utilise uniquement avec

les types de gas indiques sur la plaque signaletique.

Ne pas l utiliser avec d autres gas sauf si un kitde

conversion dertifie est installe.

Any safety screen or guard removed for servicing

an appliance must be replaced prior to operating

the appliance.

When the blower is off the air

gate is in the open position

which allows air to flow freely

through the air chamber and

up through the heat exchanger.

Air Gate Open

Air Gate Closed

When the blower is turned on,

the air pressure from the

blower forces the air gate to

seal the air chamber. This

forces all the air from the

blower to travel through the

heat exchanger producing

two to three times more air

than other brands of gas

fireplaces.

Blower Off

Blower On

Air Gate Blower System

Typically in gas fireplaces the blower (which

is usually an option) is placed to blow air up the

back of the firebox without any method to keep the

air pressure from being lost. This method allows air

to flow freely around the blower when the blower is

off but gives up a large percentage of the blowers

efficiency when it is on.

The Air Gate Blower System gives you the best

of both worlds.

200% To 300%

More Air

IMPORTANT FEATURE

OPERATION

Operation

HOW TO LIGHT THE FIRE

1. STOP! Read the safety information on the

front cover.

2. If using the optional thermostat, set thermostat

to the lowest setting.

3. Turn off electric power to the appliance.

4. Turn the ON-OFF/THERMOSTAT switch to

the OFF position.

5. Push in the gas control knob slightly and turn it

clockwise to "OFF." NOTE: THE KNOB

CANNOT BE TURNED FROM "PILOT" TO

"OFF" UNLESS IT IS PUSHED IN SLIGHTLY.

DO NOT FORCE IT.

6. Wait five (5) minutes to clear out any gas. If

you then smell gas, STOP! Follow "B" in the

safety information on the front cover. If you

don't smell gas, go to the next step.

7. Set the High-Low Regulator to High by turning

it fully counterclockwise.

8. Press in the gas control knob slightly and turn

counterclockwise to "PILOT."

9. Find the pilot by looking through the round

opening on the left end of the center log.

10. Push the control knob fully down and hold.

Immediately push the red piezo ignitor button to

light the pilot. It is normal to have to push the

red button several times before the pilot ignites.

Continue to hold the control knob in for about

one (1) minute after the pilot is lit. Release the

knob and it will pop back up. Pilot should

remain lit. If it goes out, repeat steps 5 through

•If the knob does not pop up when released, stop

and immediately call your service technician or

gas supplier.

•If the pilot will not stay lit after several tries,

turn the gas control knob to "OFF" and call your

service technician or gas supplier.

11. Turn the gas control knob counterclockwise to

"ON."

12. Place the ON-OFF/THERMOSTAT switch in

the ON position or in the THERMOSTAT

position if the optional thermostat is used.

13. Turn on the electric power to the heater.

14. Set the optional thermostat to the desired

Gas Control

High-Low

ON-OFF/

THERMOSTAT

Switch

Three Speed

Blower Switch

Piezo Ignitor

Button

Rear Burner

ON/OFF

Switch

PILOT

OPERATION

room temperature.

15. Set the High-Low Regulator to desired setting:

Turn fully counterclockwise for High and fully

clockwise for Low.

16. Press the rear burner switch to the “ON” or

“OFF” position as desired. This switch will

return to the center position after it is pressed.

This is normal as well as a faint click when

pressed. The main burner must be lit before the

rear burner will light. The rear burner may be

turned “ON” or “OFF” at any time.

NOTE: An odor, resulting from the initial heating

of new materials in your heater, is not unusual

during the first fire, and in most cases will

disappear after an hour or two.

HOW TO TURN OFF THE FIRE

1. If using optional thermostat, set thermostat to

the lowest position.

2. Turn off the electric power to the appliance.

3. Turn the ON-OFF/THERMOSTAT switch to

the OFF position.

4. Push in the gas control knob slightly and turn it

clockwise to “OFF.”

NOTE: The knob cannot be turned from “PILOT”

to “OFF” unless it is pushed in slightly. Do not

force it.

FLAME HEIGHT ADJUSTMENT

There are separate adjusters for the front and

rear burners. These adjusters can be accessed by

reaching to the left side of the control panel and to

the back of the unit. Turn the adjusters counterclock-

wise (up) to increase flame height and clockwise

(down) to decrease. See above left. Adjusting the

flames too high will cause them to have black tips

and cause sooting. Sooting can cause the glass to get

dirty.

Pilot Flames

If pilot flames are less than shown at left, use

pilot adjuster shown on page 36, to increase flames,

Warning: The unit and adjuster may be hot. Wear

gloves and arm protection if making adjustments

while in operation

Rear Burner

Adjuster Front Burner

Adjuster

Bottom rear view of burner module.

Normal Flame pattern. Note: Flames will vary in height and

position depending on the placement and the amount of

ember wool.

SPECIFICATIONS

Accordion Heat

Exchanger

Vent Collar

Brick

Blower

Battery

Pack Rear Burner

Switch Hi-Low Knob

On-Off-Pilot Knob

Ignitor

Blower Speed Switch

On-Off- Thermostat

Switch

Burner Module

Electrical Box

Glass Door

Top Standoffs

RATINGS NATURAL PROPANE NATURAL PROPANE

Input Rating (Btu/hr)(0-4500 ft.)(0-1375 m) 43500 43500 41500 41400

Min. Input Rating (Btu/hr)(0-4500 ft.)(0-1375 m) 23300 23800 22800 23400

Orifices (DMS)(front/rear)(0-4500 ft.)(0-1375 m) 31/51 52/59 32/51 52/60

Manifold Pressure (in w.c./kPa) 3.5/0.87 10.0/2.49 3.5/.087 10.0/2.49

Min. Manifold Pressure (in w.c./kPa) 1.7/0.42 6.3/1.6 1.7/0.42 6.3/1.55

Min. Inlet Pressure (in w.c./kPa) 5.0/1.25 11.0/2.74 5.0/1.25 11.0/2.74

Max. Output (Btu/hr)(0-4500 ft.)(0-1375 m) (Blower Off) 31500 32000 31000 31000

Max. Efficiency (Blower On) top vent 84.5%, rear vent 75%

Top Vent Rear Vent

SPECIFICATIONS

2. Clearance from top of ach to bottom of wood facing. 10 inches with optional arch hood

and 15 inches without arch hood

1. Clearance from top of glass to 7” mantel. 26 inches

Optional Arch Hood

This fireplace may be placed on a wood floor.

Hearth is not required in

front of the fireplace

MINIMUM CLEARANCES FROM COMBUSTIBLE CONSTRUCTION

Unit to floor 0 in.

Face to side wall 7 in.

Unit to top stand-offs 0 in.

Unit to side stand-offs 0 in.

Unit to rear stand-offs 0 in.

Top of Glass to 7” Mantel 26in.

Electrical Rating: 120 Volts, 60 Hs, >2.75 AMP

Must be

Noncombustible

SPECIFICATIONS

Rear Vent Corner

70”

Gas In

Elictrical

Hook-up

11”

SPECIFICATIONS

Corner

64”

Top Vent

Gas In

Elictrical

Hook-up

INSTALLATION

Only For Qualified Installers

Wonder Board

Wood Mantel

Tile

Arch Face

Drywall

Typical Tile Facing Sectional View

Installation Options

This section deals with basic installation of and

Arch face and a Victorian face. It does not describe

every possible way to install this fireplace. This is

why it is important to have a qualified installer do

the installation.

The Serenity III can be laid in stone, brick, or

other masonry products. For this purpose a special

template face ( part # 1-00-4238231 ) is available.

We also offer a line of Harman Built mantels,

mantel cabinets, and corner mantel cabinets.

Shown is the M2 Mantel Cabinet with marble

finish facing, raised marble finish hearth and a

gold plated Arch face with Arch hood.

INSTALLATION

Only For Qualified Installers

Placement

Here are some of the things that will effect the

exact placement of the fireplace.

1. Top or rear flue

2. Arch face or mantle face.

Arch face - Must decide on mantel and front

facing material.

3. Raised hearth, flat hearth or raised with no

hearth.

4. One, two or no remote duct kits.

5. Thermostat position.

6. Gas line hook-up is on the right side.

7. Electrical hook-up is on the left side.

This appliance must be electrically connected and

grounded in accordance with local codes or , in the

absense of local codes, with the current edition of

NFPA 70-National Electric Code or CSA C22.1-

Canadian Electrical Code.

This unit shall not be installed on carpet, vinyl

tile, or combustible material other than wood

INSTALLATION

Only For Qualified Installers

Noncombustible

Noncombustible material such as Dura-rock must be used

as facing on the front of the fireplace cabinet.

Ceramic tile, marble or other decorative noncombustible

material may be used in front of the Dura-rock. The total

thicknes for all layers of facing material may not exceed

one inch.

A one inch space under the front edge of the fireplace

allows room for hearth material. Hearth material that is

thicker must be compensated for by raising the fireplace the

proper amount.

1 inch thick

Installing fireplace in a wall with an arch face, ceramic tile facing,

and a face mantel.

INSTALLATION

Only For Qualified Installers

Latch Handles

Face Hooks

Slots for face hooks

Slots for face latches

Installing The Arch Face

To install the arch face, place the hooks on the

bottom rear of the face into the hook slots on the

fireplace. Next with the top latches handles in the

horizontal position push the face against the fire-

place and swing the latches straight down causing

them to enter the top face slots.

Removing The Arch Face

To remove the face, unlatch the top latches, tilt

the top of the face away from the fireplace and lift

the face out of the bottom slots.

INSTALLATION

Only For Qualified Installers

Assembling the Victorian Face

1. Position the mantel face down on the floor.

2. Place the left piller over the two studs on the

left side of the mantel. Install two washers and

nuts and tighten.

3. Place the left side of the breast plate into the

slots on the left pillar.

4. Place the Left hinge pin of the top grill door

into the round hole in the pillar.

5. Place the left hinge pin of the bottom grill door

into the round hole in the bottom of the pillar.

6. Place the right pillar over the studs on the right

side of the mantel face while simultaneously

placing right ends of the doors and breast plate

into their slots on the right pillar. Some assis-

tance is helpful.

7. Install any decorative panels at this time.

INSTALLATION

Only For Qualified Installers

Installing Fireplace To use

Victorian Face

When installing the fireplace to use the Victo-

rian Face the unit must be positioned back 1/2 inch

farther than with an arch face. A special drywall

bracket must be used to allow the drywall to extend

down far enough so the face will cover the drywall.

1. Install drywall bracket on top of the stand-offs

with two screws.

2. Place the fireplace into the framed opening so

the two ends of the drywall bracket rest against

the framing. This will position the face of the

fireplace 1/2 inch back from the face of the

framing.

3. Nail or screw the drywall bracket fast to the

framing.

4. Install and finish drywall as desired. Drywall

shall not extend below the drywall bracket on

the top and not closer to the fireplace cabinet

than the vertical wood framing on the sides.

Drywall Bracket

Nails

Drywall Bracket Drywall

Victorion Face

Standoff Drywall in Place

INSTALLATION

Only For Qualified Installers

Sealing Angle

Mounting Holes

Mounting The Victorian Face

1. Place fiberglass rope in sealing angle with angle

mounting bolts loose.

2. Place the face on the fireplace starting at the

bottom.

3. Slide the face into place and install the four

bolts as shown at left.

4. Slide the sealing angle against the fireplace and

tighten the mounting bolts.

Note: The face will have a one inch space under it

for hearth material. This must be considered

when planning the installation.

Complete Face Mounted

INSTALLATION

Only For Qualified Installers

Burn Only the Fuel for which the Heater is

Equipped

The Serenity III Direct Vent will burn either

natural gas or propane, but requires a change over

kit for propane. The label on the burner system mod-

ule indicates the fuel for which it is equipped. A sec-

ond label, (on the valve) also indicates the fuel type.

Making The Connection

The gas inlet is located on the bottom right side

of the fireplace. The inlet fitting is a 3/8" female

flare flexible pipe.

A separate gas shut-off valve and a 1/8" N.P.T.

plugged tapping should be installed immediately up-

stream of the connection to the appliance.

The Serenity III Direct Vent Gas Heater must

be disconnected from the gas supply piping during

any pressure testing of that system at pressures in

excess of 1/2 psig (3.5 kPa).

The Serenity III gas control valve must be in

the OFF position during any pressure testing of the

gas supply system at pressures equal to or less than

1/2 psig (3.5 kPa).

WARNING: To avoid pipe compounds from

entering into the gas train, apply compounds only

to male pipe threads and do not apply compound

to the first two threads.

CAUTION: TEST ALL JOINTS FOR LEAKS

BEFORE OPERATING.

Gas Pressure Requirements:

Correct gas pressure and the use of a properly

sized gas supply line are essential for the safe and

efficient performance of this appliance. Make sure

that the plumber or gas supplier checks the gas sup-

ply line and gas pressure at installation.

NOTE: Improper gas pressure can affect heater

performance, flame color, or cause pilot outage.

Natural Gas:

Maximum inlet pressure 7.0" w.c. (1.74 kPa)

Minimum inlet pressure 5.0" w.c. (1.25 kPa)

Gas manifold pressure 3.5" w.c. (0.87 kPa)

LPG Gas:

Maximum inlet pressure 13" w.c. (3.24 kPa)

Minimum inlet pressure 11" w.c. (2.74 kPa)

Gas manifold pressure 10" w.c. (2.49 kPa)

DO NOT USE THIS HEATER IF ANY PART

HAS BEEN UNDER WATER OR EXPOSED TO

MOISTURE CORROSION. IMMEDIATELY

CALL A QUALlFlED SERVICE TECHNICIAN TO

INSPECT THE HEATER AND REPLACE ANY

PART OF THE CONTROL SYSTEM AND ANY

GAS CONTROL WHICH HAS BEEN UNDER

WATER.

Pipe Length Schedule 40 Pipe Tubing, Type L

(Feet) Inside Diameter Outside Diameter

N.G. L.P. N.G. L.P.

0-10 1/2" 3/8" 1/2" 3/8"

1.3 cm 1.0 cm 1.3 cm 1.0 cm

10-40 1/2" 1/2" 5/8" 1/2"

1.3 cm 1.3 cm 1.6 cm 1.3 cm

40-100 1/2" 1/2" 3/4" 1/2"

1.3 cm 1.3 cm 1.6 cm 1.3 cm

100-150 3/4" 1/2" 7/8" 3/4"

2.0 cm 1.3 cm 2.3 cm 2.0 cm

RECOMMENDED GAS PIPE DIAMETER

NOTE: NEVER USE PLASTIC PIPE. CHECK TO CONFIRM

WHETHER YOUR LOCAL CODES ALLOW COPPER

TUBING OR GALVANIZED PIPE.

VENTING

Only For Qualified Installers

6-5/8 x 4 8” x 5” Description

n/a 1208 6” Pipe Length

908B 1208B 6” Pipe Length, Black

n/a 1207 9” Pipe Length

907B 1207B 9” Pipe Length, Black

906 1206 12” Pipe Length

906B 1206B 12” Pipe Length, Black

904 1204 24” Pipe Length

904B 1204B 24” Pipe Length, Black

903 1203 36” Pipe Length

903B 1203B 36” Pipe Length, Black

902 1202 48” Pipe Length

902B 1202B 48” Pipe Length, Black

n/a 1211 11” to 14-5/8” Pipe, Adjustable

911B 1211B 11” to 14-5/8” Pipe, Adjustable, Black

n/a 1217 17” to 24” Pipe, Adjustable

945 1245 45o Elbow

945B 1245B 34o Elbow, Black

990 1290 90o Elbow

990B 1290B 90o Elbow, Black

940 1240 Rnd Support Box/Wall Thimble Cover

941 1241 Cathedral Ceiling Support Box

943 1243 Flashing, 0/12 to 6/12 Roof Pitch

943S 1243S Flashing, 7/12 to 12/12 Roof Pitch

953 1253 Storm Collar

963 1263 Ceiling Firestop

988 1288 Wall Strap

981 1281 Snorkel Termination (36”)

982 1282 Snorkel Termination (14”)

984 1284 Horizontal Square Termination

980 1280 Vertical Termination

991 1291 Vertical Termination, High Wind

950 1250 Vinyl Siding Standoff

1222D (Only available from Harman) 8” x 5” to 6 5/8” x 4” Adaptor

Part Numbers for SimpsonDura-Vent Pipe and Fittings

Use Only Approved Venting

This appliance has been tested and is listed for installation with Simpson Duravent GS venting com-

ponents. The Simpson Duravent GS warranty will be voided, and serious fire, health, or other safety

hazards may result from any of the following actions:

• Installation of any damaged Duravent GS component.

• Unauthorized modification of the Duravent GS System.

• Installation of any component part not manufactured or approved by Simpson Duravent.

• Installation other than as instructed by Simpson Duravent and the appliance manufacturer.

Consult your local building codes before beginning the installation, and follow the manufacturer's

instructions exactly. The Simpson Duravent GS venting components listed below are approved for use

with the Serenity Direct Vent Gas Fireplace.

VENTING

Only For Qualified Installers

Maximum of four 450 elbows allowed.

Subtract three feet of total horizontal pipe

length for each of the 3rd and 4th 450 elbows

used.

Maximum of two 900 elbows allowed.

Subtract five feet of total horizontal pipe

length for second elbow.

Venting with 8” x 5” Pipe

A combination of one 900 elbow and two 450

elbows is allowed.

Subtract three feet of total horizontal pipe

length for each 450 elbow used.

Vent termination must remain

within the shaded area regardless of

configuration.

This appliance must not be

connected to a chimney flue

serving a separate solid fuel

burning appliance.

Maximum horizontal rear

vent run is 24 inches.

Vertical venting of the

rear vent model is not

approved. Never used

6 5/8” x 4” pipe for rear

vent.

Rear Vent Model

VENTING

Only For Qualified Installers

Maximum of four 450 elbows allowed.

Subtract three feet of total horizontal pipe

length for the 3rd and 4th 450 elbow used.

Maximum of two 900 elbows allowed.

Subtract five feet of total horizontal pipe

length for second elbow.

Venting with 6 5/8” x 4” Pipe

A combination of one 900 elbow and two 450

elbows is allowed.

Subtract three feet of total horizontal pipe

length for each 450 elbow used.

Vent termination must remain

within the shaded area regardless of

configuration.

Use Adaptor (Part No. 1222D )

to reduce to 6 5/8 x 4 vent pipe.

For the Serenity Direct Vent Fireplace, the vent/

air intake termination clearances above the high side

of an angled roof are as follows:

Roof Pitch Feet Meters

Flat to 6/12 1 0.3

7/12 to 9/12 2 0.6

10/12 to 12/124 1.2

13/12 to 16/126 1.8

17/12 to 21/128 2.4

VENTING

Only For Qualified Installers

Requirements for Terminating the Venting

WARNING: Venting terminals must not be recessed

into a wall or siding.

In addition, the following must be observed:

A. The clearance above grade, or a veranda,

porch, deck or balcony must be a minimum of 12" (30

cm).1

B. The clearance to a window or door that may be

opened must be a minimum of 12" (30 cm).1

C. A 12" (30 cm) clearance to a permanently closed

window is recommended to prevent condensation on

the window.

D. The vertical clearance to a ventilated soffit lo-

cated above the terminal within a horizontal distance of

2 feet (60 cm) from the center-line of the terminal must

be a minimum of 18" (46 cm).

E. The clearance to an unventilated soffit must be

a minimum of 12" (30 cm).

F. The clearance to an outside corner is 11" from

center of pipe.

G. The clearance to an inside corner is 12" (30

cm). H. A vent must not be installed within 3 feet (90

cm) above a meter/regulator assembly when measured

from the horizontal center-line of the regulator.

I. The clearance to service regulator vent outlet

must be a minimum of 6 feet (1.8 m).1

J. The clearance to a non-mechanical air supply

inlet to the building or the combustion air inlet to any

other appliance must be a minimum of 12 inches (30

cm).1

K. The clearance to a mechanical air supply inlet

must be a minimum of 6 feet (1.8 m).1

L. The clearance above a paved sidewalk or a

paved driveway located on public property must be a

minimum of 7 feet (2.1 m).1,2

M. The clearance under a veranda, porch, deck

or balcony must be a minimum of 12 inches (30 cm).1,3

1As specified in CAN 1 B1-149 Installation Codes

(current edition). Note: Local codes or regulations may

require different clearances.

2A vent shall not terminate directly above a side-

walk or paved driveway which is located between two

single family dwellings and serves both dwellings.

3Only permitted if veranda, porch, deck, or bal-

cony is fully open on a minimum of 2 sides beneath the

floor.

= Vent terminal = Air supply inlet

Fixed

Closed

Openable

Openable Fixed

Closed

Inside

Corner

Det ail

= Area where terminal is not permitted

VENTING

Only For Qualified Installers

Natural Gas Propane

6 feet 2 1/2 1 to 4

12 feet 2 1/2 to 4 1 to 4

24 feet 1 to 2 1 to 4

36 feet 1 2 to 4

Natural Gas Propane

12 feet 1 to 4 1 to 4

24 feet 1 to 4 1 to 4

36 feet 1 to 4 1 to 4

Range Of Approved Damper Settings

For 8” X 5” Vent

Range Of Approved Damper Settings

For 6 5/8” X 4” Vent

A vent damper is provided on top vent models

to allow fine tuning of the draft. Too little draft will

cause flames to be too long with black tips and too

much draft will cause flames to be short and blue.

To adjust the damper, burn the unit on high with

both burners for 10 minutes or more. Adjust the vent

damper to a position in the ranges listed below that

produces the most desirable flame pattern. Note: 1

is less draft and 4 is maximum draft.

Damper Settings

Top Vent Only

Maximum Draft

Minimum Draft

Vent damper in the

number “4” position

INSTALLATION

Only For Qualified Installers

Changing to LP

Remove pilot tower

with a 7/16” wrench.

Replace Natural Gas

orifice with LP

orifice.

Remove screw

Remove Air

Deflector

Remove Orifice

Cover

Remove Screw

Remove

Flame Bridge

Lift up on front of burner/grate/

screen assembly and then slide

left about 1/2”. The assembly can

then be removed.

Remove Rear Burner by

sliding to the left.

Top Vent LP Kit Part No. 1-00-08770

Rear Vent LP Kit Part No. 1-00-08771

LP Orifice Box Cover

LP Conversion label

LP Pilot Orifice

LP Front Orifice #52

LP Rear Orifice.

#60 Rear Flue,

#59 Top Flue.

LP Valve

Conversion

Module

LP Conversion

Instructions

These kits are only for use in the Serenity series fireplaces.

Note: The difference between the top and rear LP kit is the

size of the rear orifice (#59 for top and #60 for rear).

LP Conversion Kit

INSTALLATION

Only For Qualified Installers

Remove Orifices with a 1/2” wrench

or deep well socket. The larger

orifice always goes to the front.

Remove three screws to change knob assembly. Install LP

knob assembly in place of the NG assembly. Be sure screws

are tight.

Replace Orifices with the proper

size shown in the Orifice Chart.

Vent Natural Propane

Top

Rear

Front Rear RearFront

31 51

32 51

52 59

52 60

Orifice Chart

Remove two screws and place

Control Panel to the left.

Read instructions packed with LP Change-over Kit.

Place conversion sticker (provided in Kit) on bottom of

valve. This is to permanently mark the valve that it has been

converted to LP. This label is important in the event that the

valve is ever removed and mixed in with other valves.

Mark the proper box on the control panel with a permanent

marker. Note: If no conversion is made, the box for the

proper fuel must still be marked.

Note: The higher the orifice number the smaller hole in the

tip. For example, a number 52 oifice has a larger hole than

a number 60 orifice.

INSTALLATION

Only For Qualified Installers

Rear Log

Front Log

Top Log

Side Log

Rear Log Pins

Front Log Pin

Locate two holes in bottom of rear log. Place the rear log

down over the two pins to locate the log. Place the front log down over the pin shown above. The

front of the log should be parallel with the grate bar.

Place the side log as shown with the notch in the log behind

the angled grate bar. Find the two holes in the bottom of the top log. Place the

log down over the pins on top of the front and rear logs.

Log Placement

INSTALLATION (Options)

Only For Qualified Installers

Connecting the

Optional Thermostat

If the optional thermostat is used, it must be

plugged into the terminal strip located in the lower

left front corner of the heater.

When installing a millivolt control system, use

only a special low resistance thermostat. DO NOT

USE A REGULAR HEATING THERMOSTAT.

Be sure that all electrical connections are clean,

free from corrosion, and tight. Inspect connections

periodically to confirm that no corrosion has built

up over time.

When properly installed and maintained, a mil-

livolt control system should give many years of

trouble-free service.

It is important to use wire of a gauge proper

for the length of the wire:

RECOMMENDED WIRE GAUGES

Maximum Wire

Length Gauge

100' 14

60' 16

40' 18

25' 20

15' 22

Thermostat

Remote Control

The front button on the remote control can be

used to turn the front burner on and off. The rear

button is used to turn the rear burner on and off.

This remote uses the ultrasonic control method

and does not need to be pointed directly at the fire-

place.

A hand held sending unit, receiving unit, mount-

ing bracket and all wiring are included when you

order the remote control.

Installation instructions are packed with remote

kit.

Front Burner

Button

Rear Burner

Button

INSTALLATION (Options)

Only For Qualified Installers

Optional Remote Register Kit

Wall Kit

Includes wall register and wall mounting brack-

ets for the blower box.

Flex Pipe

Automatic Damper

Assembly

6” Round to 3” x 10”

Transition

Remote Register Box

With Blower

Speed Control

3” x 10” Duct

( not part of kit )

Includes remote register box with

blower, speed control, two 8 foot sec-

tions of 6” flex pipe, 6” round to 3” x

10” transition, and automatic damper

assembly.

Floor Kit

Includes floor register and floor mounting

bracket for blower box.

Floor Register

Floor

Mounting

Bracket

Wall Mounting

Brackets

Wall Register

INSTALLATION (Options)

Only For Qualified Installers

Optional Wall Register Kit

The Serenity is designed for use with one or

two register kits. Each kit can have twenty feet of

duct between the fireplace and the register box. The

registers can be mounted one floor above or below

the fireplace. The register kits are designed to be

installed in the house before wall coverings such as

drywall are installed. 3”x10” duct is to be used in-

side walls that are too narrow for the six inch flex

duct. Never use a wall cavity as a duct. Doing so

can dry out the wood and lower the kindling tem-

perature as well as cause warping.

Installing Damper Assembly

1. Remove the top cover on the side that you are

installing the damper assembly.

2. Cut the yellow insulation around the edge of the

opening. Discard the cutout.

3. Remove bottom cover by removing the screw in

the angle at the bottom of the hole. After the

screw is removed, remove the white insulation

and the angle. Lift the bottom cover up through

the hole. Note: The cover must be turned the

proper direction.

4. Locate the six tabs at the bottom of the damper

hole. These tabs are to go on the inside of the

damper barrel for the purpose of location.

5. Position the damper assembly over the hole

with the part of the damper that lifts up facing

the rear. Lower the damper assembly into the

hole in the top. Be sure that the six tabs are

inside the damper assembly. This can be

checked by opening the damper and looking

down inside to verify that all six tabs are on the

inside.

6. Secure the assembly with the four screws that

came out of the cover.

INSTALLATION (Options)

Only For Qualified Installers

Blower Box

Blower

Assembly

Box Cover

Install blower box between wall studs as shown. Run 3” x

10” duct to blower box and secure. Do not use the wall

cavity as a duct.

Run wires to blower as shown in wiring diagram on page

36. Mount blower assembly in box as shown. Test blower.

Note: Blower will not run until fireplace is hot.

Mount blower cover as shown .

Install and finish drywall as desired.

Mount register after drywall and painting are finished.

Install wall mounting brackets to side of blower box with

three screws.

Wall Mounting Brackets

Blower Cover

INSTALLATION (Options)

Only For Qualified Installers

Floor Register

Blower Cover

Speed Control

Blower Mount

Blower Assembly

Blower Box

Floor Mounting

Bracket

Speed Control

Access Door

Floor Register Installation

The difference between the wall register and

floor register is the register itself and the mounting

brackets. The wall register mounts on the wall with

two screws. The floor register mounts in the floor

and is held in place by gravity. The floor register has

a small door to access the blower speed control.

INSTALLATION (Options)

Only For Qualified Installers

Installing the Floor Register

The blower box mounting bracket

is designed to allow mounting into an

existing floor. However, it is easier to in-

stall all components at the time of house

construction. The mounting bracket as-

sumes that floor joists are on 16” cen-

ters. The mounting bracket has break-off

tabs that are to be left on only if the floor

joists are too far apart to be reached with-

out them. To break off the tabs simply

bend them back and forth until they

break. The following instructions are for

installing in an existing floor.

1. Cut a 71/2 x 137/8 hole in the floor at

the proper location. The hole must

be perpendicular to the floor joists.

2. Place the mounting bracket in the

hole as shown. The tapered end of

the bracket must be opposite to the

side where the air will enter the

blower box.

3. Place the blower box with blower

assembly removed, down into the

bracket, angling it as shown. Slide

the blower box down into the

bracket as far as needed to tilt it

level. Then slide the box in position

and attach the duct work (not

shown). Install the box mounting

screws.

4. Insert the electrical wires for the

blower into the box through one of

the two holes provided.

5. Using wire nuts, connect the wires to

the motor and speed control as

shown on the wiring diagram.

Mounting Screws

Breakoff Tabs

Tilt Blower Box

INSTALLATION (Options)

Only For Qualified Installers

Speed Control

Knob

Blower Assembly Ready to Install.

Blower Assembly Installed.

Under Floor View

6. Place the blower assembly into the blower box.

You may need to tilt the assembly to get it

through the opening in the blower box. Make

sure the wires do not get pinched.

7. Install finished flooring, carpet, tile, etc.

8. Install register by sliding it down into the

opening. Make sure the speed control door is

over the speed control. The register is designed

to allow for a variation in floor thickness.

9. Turn on electrical power and test.

Operation:

Note: A temperature switch on the fireplace will

not allow the register blower to start if the

fireplace is not warm enough to blow hot air.

This same switch will turn the blower off, if

the fireplace is turned off and cools.

1. Open the speed control door and turn the blower

on to the desired speed. Turning the blower on,

opens the damper in the top of the fireplace and

allows hot air to flow.

2. Close the speed control door.

MAINTENANCE

Latches

Removing the Glass Front

If the fireplace has an arch face, remove the face

as described on page 11.

If the fireplace has a Victorian face, open the

bottom and top doors.

Lift the latches shown above and tilt the glass

out at the top and lift it out of the groove at the bot-

tom. Handle the glass with care.

Replacing the Gasket

The Serenity uses part no. 3-44-00539 fiber-

glass gasket in the front door. Should it ever need

replacement, use only the proper replacement gas-

ket that is available from your Harman dealer. To

replace the gasket, follow this procedure.

1. Lay glass front face down.

2. Bend four tab up far enough to remove the

glass.

3. Remove old gasket.

4. Install new gasket around glass.

5. Place glass back in frame.

6. Bend tabs to secure glass. Not too tight.

7. Reinstall glass door by placing the flange on the

bottom of the door into the groove on the

bottom of the fireplace opening. Next lift the

latches and push the door against the unit. Pull

the spring loaded latches front until the tabs

drops into the slots on the door frame

Cleaning the Glass

The glass may be cleaned with ordinary house-

hold glass cleaner and a soft cloth or paper towel.

WARNING: Never clean the glass when it is

hot. Do not use abrasive cleaners on the glass.

Inspecting the Venting

An inspection of both the inner and outer pipes

of the venting system should be made during the

annual service appointment. They must have no

blockage and be in good repair. The vent

manufacturer's instructions may provide specific

suggestions or details on vent inspection. Any sec-

tions that are taken apart for the inspection must be

reassembled and sealed as required.

Cleaning the Log Set and Firebox

During the annual inspection and maintenance

appointment, the service person should clean dust,

lint, and any light accumulation from the logs and

the firebox area. An extra-soft brush should be used

on the logs as they are extremely fragile; a vacuum

cleaner may be used on the firebox. If at any time

the logs cannot be removed or installed without forc-

ing, the cause must be found. The logs must never

be forced.

A qualified service person recommended by

your Harman dealer should conduct an annual in-

spection and maintenance of your fireplace, its vent-

ing, and the installation to keep it running safely and

efficiently. The following procedures should be per-

formed only by a qualified service person. The gas

supply should be turned off whenever a maintenance

procedure is performed.

If the glass front, side doors, or front access

door are removed for servicing, they must be re-

placed prior to operating the fireplace.

Slot

WARNING: DO NOT OPERATE THIS

APPLIANCE WITH TH GLASS FRONT

REMOVED, CRACKED OR BROKEN.

REPLACEMENT OF GLASS SHOULD BE

DONE BY A LICENSED OR QUALIFIED

SERVICE PERSON. NEVER USE

SUBSTITUTE MATERIALS.

DO NOT STRIKE OR SLAM GLASS

MAINTENANCE

Air In

Air Out

The flow of combustion and ventilation air

must not be obstructed

Oil Holes

Cleaning the Burners

To clean the burners the face, glass front, and

logs must be removed. Remove the front burner as-

sembly and rear burner as described on page 22. Re-

move the front burner from the assembly by loosen-

ing the clamping plate on the bottom.

With both burners removed, inspect all the hole

to make sure they are unobstructed. Use a small drill

or wire to clean any obstructed holes. Remove any

rust or other buildup that may have accumulated.

Replace burners in reverse order.

Lubrication

The Serenity Fireplace does not require lubri-

cation other than the blower. One or two drops of

light oil may be put in the two oil holes on the blower

motor. This is not critical and should only be done

every year or two. Too much oil is worse than no

oil.

Air Flow

It is essential the air flows freely into the bot-

tom grill and out of the top grill. Do not place ob-

jects in front of the grills.

Check blower annually for buildup caused by

dust and pet hair.

MAINTENANCE

CAUTION: Label all wires prior to disconnection when servicing

controls. Wiring errors can cause improper and dangerous operation.

Verify proper operation after servicing.

Attention: Au moment de l’ entretien des commandes, etiquetez

tous les fils avant le debranchement Des erreurs de cablage peuvent

entraium fonctionnement inadequat et dangereux.

Homologue Pour Le Canada

Do not remove or cover this label.

Not for use with solid fuel. Not for use with air filters

Ne doit pas etre utilise avec un combustible solide.

Also for use in mobile (manufactured) homes after home is sited.

Tested to ANSI Z21.88-2002, CSA2.33-M02. CAN-CGA-2.17-M91

For use with natural gas and propane. A conversion kit, as sup-

plied by the manufacturer, shall be used to convert this room

heater to the alternate fuel.

Pour utilisation, avec le gaz naturel et le propane. Une trousse

de conversion fournie par le fabricant doit etre utilisee pour passer

d’un combustible a l’autre.

Listed Direct Vent Gas Fireplace Heater

Radiateur Ventile

Model: Serenity III HB 38DV

WHI #

RATINGS NATURAL PROPANE NATURAL PROPANE

Input Rating (Btu/hr)(0-4500 ft.)(0-1375 m) 43500 43500 41500 41400

Min. Input Rating (Btu/hr)(0-4500 ft.)(0-1375 m) 23300 23800 22800 23400

Orifices (DMS)(front/rear)(0-4500 ft.)(0-1375 m) 31/51 52/59 32/51 52/60

Manifold Pressure (in w.c./kPa) 3.5/0.87 10.0/2.49 3.5/.087 10.0/2.49

Min. Manifold Pressure (in w.c./kPa) 1.7/0.42 6.3/1.6 1.7/0.42 6.3/1.55

Min. Inlet Pressure (in w.c./kPa) 5.0/1.25 11.0/2.74 5.0/1.25 11.0/2.74

Max. Output (Btu/hr)(0-4500 ft.)(0-1375 m) (Blower Off) 31500 32000 31000 31000

Max. Efficiency (Blower On) top vent 84.5%, rear vent 75%

A LABEL ON THE BURNER SYSTEM MODULE

STATES THE FUEL FOR WHICH THE HEATER IS

EQUIPPED.

MINIMUM CLEARANCES FROM COMBUSTIBLE CONSTRUC-

TION

Unit to floor 0 in.

Face to side wall 7 in.

Unit to top stand-offs 0 in.

Unit to side stand-offs 0 in.

Unit to rear stand-offs 0 in.

Top of Glass to 7” Mantel 26in.

Electrical Rating: 120 Volts, 60 Hs, >2.75 AMP

Manufactured by Harman Stove Company

352 Mountain House Road, Halifax, PA 17032

TOP VENT REAR VENT

One or two optional register kits (Part No. 1-00-08802) may

be used with this appliance.

MAINTENANCE

3-40-08774 ELBOW W/#32 HOOD/REAR FRONT NG 1

3-40-08776 WOOL 1

3-40-08777 NUGGETS 1

3-40-08782 REAR BURNER TUBE 1

3-40-08783 FRONT BURNER TUBE 1

3-40-08787 8" INNER FLUE COLLAR 1

3-40-08788 8" OUTER FLUE COLLAR 1

3-40-08795 SOLENOID 1

3-40-08906 THERMOCOUPLE 1

3-40-196326 19-5/8 X 32-5/8 GLASS 1

3-40-820628 NG VALVE 1

3-40-907202 VALVE CONVERSION-LP 1

3-40-971157 .014 ORIFICE FOR LP PILOT 1

3-44-00539 TADPOLE GASKET FOR GLASS 9'

3-44-08405 AIR DROP GASKET 1

3-44-08714 EXPLOSION GASKET 2

3-44-08786 FLUE COLLAR GASKET 1

Replacement Parts

TROUBLE SHOOTING

Only For Qualified Installers

Manifold Pressure

10 inches Inlet Pressure 11

to 13 inches

Manifold Pressure

3.5 inches Inlet Pressure

5 to 7 inches

Natural Gas

Propane

Pilot Adjuster

TROUBLE SHOOTING

Only For Qualified Installers

Look through hole in end of

log to see if a spark jumps

from the ignitor electrode to

the pilot when the ignitor

button is pushed.

Check ignitor wire and

connections from piezo ignitor

to ignitor ceramic at pilot.

Reconnect or replace

Ignitor wire.

Yes

No Bad

Bad

Yes

Turn on gas valve

Is gas turned "on"?

Yes

Purge gas line to stove

No Replenish supply

Bad

Replace Pirzo Ignitor

Check Piezi Ignitor to make

sure the small wire on the

mounting flange is grounded.

Clean paint or rust

from around

mounting hole.

Replace

Check pilot orfice and

pilot line for blockage.

Is there gas in tank

(LP) or line (NG)

Check Ignitor Ceramic for

cracks

Pilot does not light

after many tries

TROUBLE SHOOTING

Only For Qualified Installers

Good

Check Milivolt output of

thermocouple. Should

be 10 or more MV.

Check inlet pressure Bad

Adjust pilot adjustment to

achieve proper flame.

Replace Thermocouple

Bad

Replace Valve

Pilot does not stay lit

Check size of pilot flames Bad

Correct inlet pressure

Good

TROUBLE SHOOTING

Only For Qualified Installers

Main Burner will

not light (with valve

in "on" position)

Is Pilot lit no Light pilot

Yes

Check Thermopile

voltage at terminals

marked TP on valve.

Should be approximately

200 mv with switch "on"

and approximately 400

mv with switch "off".

too low Replace Thermopile

Check switch, wires, and

wiring connectors. Correct problem

Replace valve

bad

TROUBLE SHOOTING

Only For Qualified Installers

Good

Check rear burner

switch

Check batteries Bad

Repair any loose

connections.

Replace switch

Bad

Replace solinoid

Check wire connections Bad

Install new batteries

Good

Rear burner does not light

Do you hear a click sound

when you move the rear

burner switch back and

forth from “off” to “on”.

Yes

Check rear orifice for

blockage

LIFE

TIME





Harman Built Fireplaces warrants its products to be free from defects in material or workmanship, in normal use and

service, for a period of 6 years from the date of sales invoice and for mechanical and electrical failures, in normal use and

service, for a period of 3 years from the date of sales invoice.

If defective in material or workmanship, during the warranty period, Harman Built Fireplaces will, at its option, repair or

replace the product as described below.

The firebox and heat exchanger have a lifetime warranty.

The warranty above constitutes the entire warranty with respect to Harman Built Fireplaces products. HARMAN

BUILT FIREPLACES MAKES NO OTHER WARRANTY, EXPRESSED OR IMPLIED, INCLUDING “ANY”

WARRANTY OF MERCHANTABILITY, OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. No

employee, agent, dealer, or other person is authorized to give any warranty on behalf of Harman Built Fireplaces. This

warranty does not apply if the product has been altered in any way after leaving the factory. Harman Built Fireplaces and its

agents assume no liability for “resultant damages of any kind” arising from the use of its products. In addition, the manufac-

turer and its warranty administrator shall be held free and harmless from liability from damage to property related to the

operation, proper or improper, of the equipment.

THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE

HEREOF.

THESE WARRANTIES APPLY only if the device is installed and operated as recommended in the owner’s manual.

THESE WARRANTIES WILL NOT APPLY if abuse, accident, improper installation, negligence, or use beyond rated

capacity causes damage.

HOW TO MAKE A CLAIM - Any claim under this warranty should be made to the dealer from whom this appliance

was purchased. Then contact is made with manufacturer, giving the model and serial numbers, the date of purchase, your

dealer’s name and address, plus a simple explanation of the nature of the defect. Extra costs such as mileage and overtime

are not covered. Nuisance calls are not covered by these warranties.

THIS WARRANTY IS LIMITED TO DEFECTIVE PARTS - REPAIR AND/OR REPLACEMENT AT

HARMAN BUILT FIREPLACES’ OPTION AND EXCLUDES ANY INCIDENTAL AND CONSEQUENTIAL

DAMAGES CONNECTED THEREWITH.

WARRANTY EXCLUSIONS: Failure due, but not limited to, fire, lightning, acts of God, power failures and/or surges,

rust, corrosion and venting problems are not covered. Damage and/or repairs to cabinets and all exterior components,

including but not limited to, remote controls, filters, fuses, knobs, glass, gaskets, door packing, fire brick or tile, ceramic logs

sets, paint, batteries or battery back-up and related duct work are not covered. Additional or unusual utility bills incurred due

to any malfunction or defect in equipment and the labor cost of gaining access to or removal of a unit that requires special tools

or equipment are not covered. Maintenance needed to keep the unit in “good operating condition” is not covered. This

includes, but is not limited to, cleaning, adjustment of customer controls and customer education. Labor, materials, expenses

and/or equipment needed to comply with law and/or regulations set forth by any governmental agencies are not covered.

This Warranty provides specific legal rights and the consumer may have other rights that vary from state to state.

In the event of change in ownership, the remaining portion of this warranty may be transferred to the new owner by

sending the new owner information and a transfer fee of $25.00 US to Harman Built Fireplaces.

PLEASE READ THE LITERATURE BY THE MANUFACTURER FOR THE VARIOUS ACCESSORY

DEVICES. THE MANUFACTURER WARRANTS THESE ACCESSORY DEVICES, NOT HARMAN BUILT

FIREPLACES OR THEIR WARRANTY ADMINISTRATOR. FURTHERMORE, THESE ACCESSORY DEVICES

MUST BE INSTALLED AND USED ACCORDING TO THE RECOMMENDATIONS OF THE MANUFAC-

TURER.

REMEDIES - The remedies set forth herein are exclusive and the liability of seller with respect to any contract or sale

or anything done in connection therewith, whether in Contract, in tort, under any warranty, or otherwise, shall not, except as

herein expressly provided, exceed the price of the equipment or part of which such liability is based.

CLARIFY - The above represents the complete warranty, which is given in connection with fireplaces, manufactured

by Harman Built Fireplaces. No other commitments, verbal or otherwise, shall apply except by a written addendum to this

warranty.

Harman Stove Company Hb 38 Dv Users Manual

HB 38 DV 75a8ebfd-f4ea-4b74-a827-9b3687145daf

HB 38 DV to the manual 75a8ebfd-f4ea-4b74-a827-9b3687145daf

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