Harman Stove Company P68 User Manual

Installation & Operating Manual

P68 Pellet Stove Owners 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.

P68 Pellet Stove

Introduction

The Award-Winning P68 Pellet Stove has the widest BTU range available, giving you 0 to 68,000 BTU when you need it, automatically. The only thing you need to do is set your desired room temperature and fill the hopper. With the P68 you will notice even heat throughout your home and a level of convenience you never thought possible.

The P68 epitomizes the capability of Harman Pellet Stoves, taking advantage of Harman’s 20 years of

pellet stove design, technology and manufacturing. This 68,000 BTU stove has the highest output, smartest

controls, widest heating range, and minimal maintenance. The P68’s huge output is managed by a

microprocessor that senses the room temperature and the fire temperature with tiny thermistor probes and then determines the best feed rate. This improved and smarter control also has a diagnostic port for connecting an external display showing live working data for easier troubleshooting.

The platinum combination is Harman’s Patented Feeder & Burn Pot, and ESP Control which have been

developed to their highest state. These features work together to allow amazing heat output with different fuel quality, ash content and moisture.

Table of Contents

Assembly & Installation 4

Serial #:

This label is located on the back of the unit. Please copy the Serial Number for future reference.

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.

Installation 5 Venting 6 Automatic Operation 13 Manual Operation 16 ESP Control 18 Low Draft Voltage Adjustment 19 Room Sensor 20 Maintenance 21 Trouble Shooting 26 Feeder Parts 27 Specifications 27 Options 28 Wiring Diagram 29

Harman Stove Company

352 Mountain House Road

Halifax, PA 17032

Parts List 30 Warranty 31

P68 Pellet Stove

IMPORTANT NOTES

DO NOT INSTALL A FLUE DAMPER IN THE EXHAUST VENTING SYSTEM OF THIS UNIT.

DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE.

Mobile home installation should be done in accordance with the Manufactured Home and Safety Standard (HUD), CFR 3280, Part 24.

WARNING

DO NOT INSTALL IN SLEEPING ROOM

CAUTION

THE STRUCTURAL INTEGRITY OF THE

MOBILE HOME FLOOR, WALL, AND

CEILING/ROOF MUST BE MAINTAINED.

CAUTION

KEEP COMBUSTIBLE MATERIALS (SUCH

AS GRASS, LEAVES, ETC.) AT LEAST 3 FEET

AWAY FROM THE FLUE OUTLET ON THE

OUTSIDE OF THE BUILDING.

P68 Pellet Stove

Fig. 1

Assembly and Installation

Shipping Bolts Note: These same holes are used for securing the stove in mobile home installation.

Rear Cover

Panels

Unpacking

The P68 is bolted (1/4 x 1" hex head bolts) to the skid to prevent movement during shipping. To free the stove from the skid you must remove the hold-down bolts in the rear of the pedestal base.

Installing rear cover panels

The rear cover panels are removed from the stove to make it easier to get at the hold-down bolts. The rear cover panels are packed inside the hopper and should be installed on the stove as shown. It is recommended that the rear covers are installed after the unit is in place and the vent pipe is installed.

Firebrick

Install the firebrick vertically on the angle bracket above the burnpot.

Flame Guide

Install the cast iron flame guide on top of the burn pot. Make sure that the flame guide is fully seated on the vertical sides of the burn pot and that the back of the guide rests against the body of the stove. INSTALL EXHAUST VENT AT CLEARANCES SPECIFIED BY THE MANUFACTURER. Most pellet pipes require a minimum of 3" of clearance to combustible materials.

Door Handle Installation

1. Remove wood handle ( P.N. 4-30-00123 ), 6mm spring washer ( P.N. 3-31-08558 ) and socket head cap screw ¼-20 x 2-1/4" ( P.N. 3-30-3025202252 ) from hardware pack.

Wood Handle 3-40-00123

8mm Spring Washer 3-31-08558

SHCS 1/4-20 x 2-1/4 3-30-3025202252

Fig. 2

2. Install spring washer and wood handle onto socket head cap screw as shown in fig. 2 and thread onto latch on front door.

3. Tighten using a 3/16" hex key wrench.

P68 Pellet Stove

Installation

Installing

Place the stove on a noncombustible floor protector that extends a minimum of 6 inches to the front, 2 inches to the sides and flush with the rear of the hopper. See Fig. 6.The minimum floor protector material is 20 gauge sheet metal. Other floor protector materials are ceramic tile, stone, brick, etc.

Place the stove away from combustible walls at least as far as shown in Figures 3,4 and 5. Please note the difference in side wall clearance with and without side shields.

Note that the clearances shown are minimum for safety but do not leave much room for access when cleaning or servicing. Please take this into account when placing the stove.

Connect the power cord to a 120 V.A.C. 60Hz grounded receptacle. (A surge protector is recommended to protect the circuit board.) If the voltage entering your home is below 116 volts your stove may not work properly. Also be sure that the polarity of the outlet that the stove is plugged into is correct.

Prior to installing the flue pipe, connect a draft meter. (The draft meter must have a minimum range of 0-.5.)Record the first reading. Connect flue pipe to stove and be sure all doors and windows in the home are closed. Record the second draft reading_______. If the second reading is more than .05" lower than the first reading, check for possible restrictions or the need for outside air (see page 8). For more information on the draft test procedure, refer to Page 19.

Mobile Home Installation

When installing this unit in a mobile home several requirements must be followed:

1. The unit must be bolted to the floor. This can be done with 1/4" lag screws through the 2 holes in the base plate.

2. The unit must also be connected to outside air. See page 8.

3. Floor protection and clearances must be followed as shown.

4. Unit must be grounded to the metal frame of the mobile home.

CAUTION: This appliance must be vented to the outside.

Due to high temperatures, the stove should be placed 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 to skin and/or clothing.

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

Clothing and other flammable materials should not be placed on or near this unit.

Installation and repair of this Harman stove should be done by a qualified service person. We recommend that the stove be inspected before use and at least annually by a qualified service person. Periodic cleaning is required throughout the heating season and at the end of each winter for the stove to work efficiently. See cleaning instructions on page 21.

P68 Pellet Stove

9"-13"

9" With Side Shields 13" Without Side Shields

Floor Protection must be 2 inches to each side, 6 inches to the front, and 0 inches to the back of the stove. Floor Protector minimum: 25" wide x 33" deep.

33" minimum

Fig. 3

14"

Fig. 4

20"

Fig. 5

25" minimum

(even with hopper)

Fig. 6

Venting

Requirements for Terminating the Venting

WARNING: Venting terminals must not be re-

cessed into a wall or siding.

NOTE: Only PL vent pipe wall pass-throughs and fire stops should be used when venting through combustible materials.

NOTE: Always take into consideration the effects of the prevailing wind direction or other wind currents that may cause flyash and/or smoke when placing the termination vent.

In addition, the following must be observed:

A. The clearance above grade must be a minimum of 18".

B. The clearance to a window or door that may be opened must be a minimum of 48" to the side, 48" below the window/door, and 12" above the window/door.

( with outside air installed, 18” )

C. A 12" clearance to a permanently closed window is recommended to prevent condensation on the window.

D. The vertical clearance to a ventilated soffit located 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".

E. The clearance to an unventilated soffit must be a minimum of 12".

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

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

H. A vent must not be installed within 3 feet (90 cm) above a gas meter/regulator assembly when measured from the horizontal center-line of the regu-

lator.

I. The clearance to service regulator vent outlet

must be a minimum of 6 feet.

J. The clearance to a non-mechanical air sup-

ply inlet to the building or the combustion air inlet to

any other appliance must be a minimum of 48”.

K. The clearance to a mechanical air supply

inlet must be a minimum of 10 feet.

(with outside air installed, 6 feet )

L. The clearance above a paved sidewalk or a paved driveway located on public property must be a minimum of 7 feet.

M. The clearance under a veranda, porch, deck

or balcony must be a minimum of 12 inches.

1,2

1,3

NOTE: The clearance to vegetation and other

exterior combustibles such as mulch is 36” as measured from the center of the outlet or cap. This 36”

radius continues to grade or a minimum of 7 feet below the outlet.

Certain Canadian and or Local codes or regu-

lations may require different clearances.

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

Only permitted if veranda, porch, deck, or balcony is fully open on a minimum of 2 sides beneath the floor.

NOTE: Where passage through a wall, or partition of combustible construction is desired, the installation shall conform to CAN/CSA-B365. (if in Canada)

= Vent terminal

Fixed

Closed

Openable

= Air supply inlet

Inside Corner

Detail

Fixed

Closed

= Area where terminal is not permitted

P68 Pellet Stove

Venting

IMPORTANT NOTICE

Pellet Vent Pipe or PL Vent Pipe Must Be Used.

Venting

A combustion blower is used to extract the combustion gases from the firebox. This causes a negative pressure in the firebox and a positive pressure in the venting system as shown in Fig. 7. The longer the vent pipe and more elbows used in the system, the greater the flow resistance. Because of these facts we recommend using as few elbows as possible and 15 feet or less of vent pipe. The maximum horizontal run should not exceed 48". If more than 15 feet of pipe is needed, the interior diameter should be increased from 3" to 4" because a larger pipe causes less flow resistance. Be sure to use ap-

proved pellet vent pipe wall and ceiling passthrough fittings to go through combustible walls and ceilings. The use of a starting collar is not al-

ways necessary. The first piece of pipe should be fastened securely with at least 2 fasteners to the flue collar of the stove. If a starting collar is used to attach the venting system to the stove, the starting

collar must be sealed to the stove with high temp silicone caulking.

= Positive Static Pressure = Negative Static Pressure

Fig. 7

Vent Pipe

Pellet venting pipe ( also known as PL vent ) is constructed of two layers with air space between the layers. This air space acts as an insulator and reduces the outside surface temperature to allow a clearance to combustibles of only 3 inches. The sections of pipe lock together to form an air tight seal in most cases. However, in some cases a perfect seal is not achieved. For this reason and the fact that the P68 operates with a positive vent pressure

we specify that the joints also be sealed with silicone. Aluminum tape can also be used for any

joint that is 1 ft. or more from the outlet of the stove.

We cannot emphasize enough, the importance of sealing every seam and joint in the venting system which is inside the home. Even the smallest pin hole can leak and when it does you will smell wood smoke or a creosote smell in the room. If this occurs check for leaks. Leaks are easiest to see during start-up. Alternatively you can use a smoke pellet to leak test the venting before lighting your first fire.

P68 Pellet Stove

Inlet Cover part# 1-10-08542

Outside air flex pipe goes here.

Flex pipe part# 2-00-08543 (3') 1-00-08543 (25')

Venting

Outside Air

Here are four benefits of outside air:

1. Having air introduced from outside the living area boosts overall efficiency.

2. It eliminates draft problems that can occur in tight homes.

3. It reduces smoke spillage in the event of a power failure.

4. It allows your vent termination to be as close as 18" from windows or doors.

Outside air is optional except in mobile homes and where building codes require. The benefit of outside air is mainly noticed in small, very tight, houses.

To install outside air use 2 3/8" I.D. non-combustible flex pipe. There is a break-away hole on the rear panel of the P68 stove which must be removed before connecting the flex pipe. The pipe should be run outside and terminate to the side or below the vent pipe outlet so the flue outlet is more than 12" from the inlet cover. The maximum length run of this pipe is 15 feet. If a longer run is needed the size must be increased to 3". Inlet cover part number 110-08542 should be used to keep birds, rodents, etc.out of the pipe.

HRV

When installing in a house with a Heat Reclaiming Ventilation System (HRV) be sure the system is balanced and is not creating a negative pressure in the house.

P68 Pellet Stove

Venting

3 ft.

to combustibles

Combustibles

allowed

beyond 3 ft.

#1 Preferred method

This method provides excellent venting for normal operation and allows the stove to be installed closest to the wall. Two inches from the wall is safe; however, four inches allows better access to remove the rear panel. The vertical portion of the vent should be three to five feet high. This vertical section will help provide natural draft in the event of a power failure. Note: Do not place joints within wall pass-

throughs.

Fig. 8

Fig. 9

3 ft.

to combustibles

3 ft.

to combustibles

3 ft.

to combustibles

Combustibles

allowed

beyond 3 ft.

#2 Preferred method

This method also provides excellent venting for normal operation but requires the stove to be installed farther from the wall. The vertical portion of the vent should be three to five feet high and at least three inches from a combustible wall. This vertical section will provide natural draft in the event of a power failure.

If the stove is installed below grade be sure the

ve nt te

outlet must also be 1 foot from the house/building.

throughs.

rmination is at least 18" above grade. The

Note: Do not place joints within wall pass-

CAUTION

Keep combustible materials (such as grass,

leaves, etc.) at least 3 feet away from the flue

outlet on the outside of the building.

12" min. wall to outlet

P68 Pellet Stove

36" min

clearance to any

combustible

material

+ 22 hidden pages