Page 3 - SAVE THESE INSTRUCTIONS; Harman Stove Company; 52 Mountain House Road; Table of Contents; DO NOT INSTALL IN A MOBILE HOME.
3 PF100 Assembly 4 Venting 1 0 Installation 1 5 Operation 2 1 M a inte nance 2 9 Troubles hooting 3 4 Feeder Parts 3 5 Specifications 3 6 Wiring Diagram 3 7 Parts List & Options 3 8 Warranty 3 9 Testing Label 4 0 Quick Reference Start-Up 4 1 Please read this entire manual before you install and ...
Page 4 - Venting; Use 4” pellet vent pipe to vent your PF 100.; Be sure to use wall and ceiling pass through; ” pellet venting pipe ( also known as PL vent ) is; Clearances and Venting; NOTE:Use only 4” diameter type “L” or “PL”; Assembly
4 PF100 Venting Use 4” pellet vent pipe to vent your PF 100. A combustion blower is used to extract the com- bustion gases from the firebox. This creates a negativepressure in the firebox and a positive pressure in theventing system as shown in fig. 2. The longer the ventpipe and more elbows used in...
Page 5 - Filter Box; Assembling Filter Box; The cold air return filter box can be assembled; Fig. 4
5 PF100 Filter Box (Cold Air Return) This Edge TowardFurnace Assembling Filter Box The cold air return filter box can be assembled with the filter frame on either side or the back, pro-vided there is access to the combustion blower and fluearea. It is not recomended that the filter frame be installe...
Page 6 - Assembling Filter Box, Cont’d
6 PF100 3. Place the filter frame panel inside the bottom and inside the solid panel corner. See Fig. 6 for cornerdetail. Make sure that the filter opening is up.See Fig. 5Hold the filter panel to the solid panel with a Tek screwin the middle hole of the solid panel, and one in the bot-tom middle ho...
Page 8 - Blower Assembly; MUST
8 PF100 Mounting Screws Fig. 11 Fig. 13 Fig. 14 Fig. 12 Blower Assembly Install the blower mounting brackets on the blower as shown in Fig. 11. 1. Install ( 4) Tek screws on each side where shown in Fig. 11. Start with the two center screws. NOTE: There are two small holes in the discharge end of th...
Page 9 - Fig. 15; Baffle installation; Fig. 16; Upper heat
9 PF100 Firebrick Firebrick installation-required The firebrick is shipped in the ashpan. It will need to be placed on the brick shelf as shown in Fig. 15. Itcan be installed with either face to the fire. Hold thebrick longways and slide it down into the slot on theshelf. There is a stop at the rear...
Page 10 - Any exterior venting (vent pipe exposed to out-; combustible; NOTE: Read and follow all of the vent pipe; KEEP COMBUSTIBLES AWAY; CAUTION; DO NOT INSTALL IN SLEEPING ROOM; WARNING; NOTE: Use only 4” diameter type “L” or “PL”
10 PF100 The minimum vent configuration is a 90 o or Tee on a starter collar and a 24” length horizontal through an exterior wall. A cap or other bird screen on the endshould direct the flue gasses down and away from thestructure. See Fig. 18. The maximum horizontal length is 18 feet. The mini- mum ...
Page 11 - ig; ti
11 PF100 F ig . 1 9 V en ti n g C o n fi g u ra ti o n G ra p h Venting
Page 12 - other appliance must be a minimum of 48”.; with outside air installed, 6 feet; exterior combustibles such as mulch is 36” as measured
12 PF100 Requirements for Terminating the Venting WARNING: Venting terminals must not be recessed into a wall or siding. NOTE: Only PL vent pipe wall pass-throughs and fire stops should be used when venting through com-bustible materials. NOTE: Always take into consideration the effect the prevailin...
Page 13 - Venting and Clearances
13 PF100 Clearances to combustibles If installing the furnace in a room separated from the remaining living spaces, the minimum size of the room must be no smaller than 8’ x 8’. See Fig. 21. The reason for this is heat build-up and required space for service and normaloperation. This is the minimum ...
Page 14 - Chimneys taller than 20’ above the connection will re-; Fig. 23; (Only listed 4” pellet vent wall pass-throughs and fire stops; Fig. 25; Creosote - Formation and Need for Removal -; It Can Not; Venting and Installation
14 PF100 Chimneys taller than 20’ above the connection will re- quire a draft test to determine if the draft is too high. Note: The High Burn Draft should not exceed .85 IWC. Some form of a restrictor plate may be required at thetop of high chimneys to reduce the draft. See page 20 forthe Draft Test...
Page 15 - Outside Air; Cover and to the right of the feeder motor. The 2 3/4”; HRV; Fig. 29; Outside Air Inlet Pipe; Installation; Fig. 28; Outside Air Pipe Knockout
15 PF100 Outside Air Outside air is optional, although it may be required by some building codes. The benefit of outside air ishigher efficiency and reduced venting restrictions mainlynoticed in small and very tight houses. To install outside air, use 2 3/4”" I.D.galvinized steel flex pipe, part...
Page 16 - DO NOT STRIP THE WIRES; Wall Control Wiring; NOTE: The PF100 furnace Can Not be; Fig. 31
16 PF100 The Wall Control sends and receives it’s informa- tion from the control board through a 4 wire Datacom cable. There is a 100’ length of this cable supplied with the furnace. 100’ lengths of this cable can also be or- dered separately, part # 3-20-02583. Or any Datacomcable -CAT 3 - 2 twiste...
Page 17 - Installing Duct
17 PF100 The Harman PF100 may be connected to a gas or oil-fired central furnace or heat pump duct system. Priorto installation, determine whether all requirements forinstallation including all clearnaces can be met. The PF100 warm air supply and the cold air return must be installed in a parallel a...
Page 18 - Installing Duct/Air Conditioning
18 PF100 Adding Air Conditioning to the PF100 furnace. The PF100 furnace can be fitted with an air condi- tioning coil mounted in the supply air plenum. The Harman Stove Co. is not responsable for sizing,duct placement, or interconnections. However wehave made adding A/C to the furnace easier with t...
Page 19 - CONTROL switch. ( It doesn’t matter which wire is on; Fig. 35; Fig. 36
19 PF100 NOTE: KEEP THE FAN/LIMIT CONTROLI N S T R U C T I O N S W I T H T H E O W N E R SMANUAL FOR FUTURE REFERENCE. 1. The Fan Control must be placed in the discharge plenum approximately 11 inches above the discharge open-ing of the furnace as close to center as possible. Note: The best place is...
Page 20 - Installing Electrical Power:; mended that the draft meter have a scale of 0 to 1” WC.); Don’t forget to turn the control back to #4.; “Test”
20 PF100 Installing Electrical Power: To install power to the furnace first remove the cover on the circuit breaker junction box shown. Inside you will find the main terminal block.(See wir- ing diagram on page 36 for location of main terminal blockand proper power connections). In the bottom of the...
Page 21 - The Control; The control can be covered as shown above, or; Operation
21 PF100 Combustion Combustion Fan Control Hopper Lid Control Cover 3 Speed Switch Viewing Glass Outer Door Vent Pipe Heat Exchanger Outer Door Latches Filter Box Hopper The Control The control can be covered as shown above, or uncovered as shown at left. There is a pair of slots pro-vided for each ...
Page 22 - Temp dial; Mode S elector; Blinks
22 PF100 Power Light I n d i c a t e s p o we r t o t h econtrol, and is also used during “Test” to check the Low Fuel Sensor operation. Status Light Wi l l b e l i t i n e i t h e rautomatic or service modewhen pointer is not withino ff po sit i on b a nd ex c ep tafter normal shut down.Ita l so b ...
Page 23 - Wall Control; Wall Control calibration: The “Normal Setting” on; Low Fuel Sensor; turning the FEED ADJUSTER knob to “Test”. The; Type of Fuel
23 PF100 L OW F UEL 65 60 75 80 70 Temperature Dial Low Fuel Light Wall Control The wall control acts like a thermostat, however, what is actually going on is a thermister in the wall con-trol is sending temperature information back to the mi-cro processor on the furnace. This information is usedto ...
Page 24 - This resets the control in addition to turning it off.; Fill hopper; Starting A Fire Automatically; Fig. 46; Clean burnpot; This is usually a weekly maintenance procedure.
24 PF100 1. Turn Mode Selector to "OFF". This resets the control in addition to turning it off. 2. Fill hopper with pellets. When filling the hopper check for excessive fines inthe bottom of the hopper. Fines are small pieces of brokenpellets (sawdust). Fines do not flow easily and often bui...
Page 25 - If starting after an empty hopper, turn; This will purge pellets into; If this is your first fire or you are trying; Fl ip the Igniter Switch up; int o the; Turn the Temperature Dial; on the wall
25 PF100 4. If starting after an empty hopper, turn Feed Adjuster to "TEST" (for one 60 second cycle). This will purge pellets into the auger tube and also allow you to checkthe motors for operation. NOTE: The auger motor will not operate with the ash dooropen. L OW F UEL 65 60 75 80 70 5. T...
Page 26 - This will start the lighting process if the tempera-; with pellets and; Use pelletized wood only.; Store pellets in the manufacturer’s wrapping; Temp Dial Mode Selector
26 PF100 8. Turn the Temperature Dial on the furnace control to “NORMAL SETTING”. 9. Turn Mode Selector to “AUTOMATIC” This will start the lighting process if the tempera- ture at the wall control is less than the set temperatureon the dial. The PF100 is more than just an automatic ignition pellet f...
Page 27 - Lighting A Fire Manually; Fl ip the Ig niter Switc h D own; into t he
27 PF100 Lighting A Fire Manually Lighting the fire manually will not be necessary unless the igniter in the burnpot fails. Follow steps 1 through 5 of the instructions forautomatic lighting. 6. Fl ip the Ig niter Switc h D own into t he "MANUAL-LIGHT" position. See Fig. 55. 7. Open inner an...
Page 28 - Turn Mode Selector; to “SERVICE”; changed to the “AUTOMATIC”setting. If you change; Close The Doors
28 PF100 11. Turn Mode Selector to “SERVICE” This will start the combustion blower and allow the ESP to control the fire in relation to the Temp Dial set-ting 1 through 7. Once the fire is well established theTemp Dial can remain on any number setting desired,or changed to the “AUTOMATIC”setting. If...
Page 29 - don’t forget to turn the control back to the Wall Control; Cleaning the burnpot air chamber:; Fines cleanout cover; ALWAYS REMEMBER TO CLOSE; • Slide the cover off of the threaded stud.; Maintenance
29 PF100 Burnpot cleaning: The burnpot should be cleaned no less than once a week. For best operation the burnpot should be cleanedevery time the hopper is filled with pellets. The fire doesnot have to be out to scrape the burnpot although it isrecomended the furnace be on minimum burn at the timeof...
Page 30 - Ash Removal; Open Outer Ash Door; Disposal of Ashes; Close the
30 PF100 Ash Removal It is recommended to remove the ashes when the furnace is not in operation. This lessens the chances ofcoming in contact with hot surfaces. Ashes can be re-moved while in operation but, extra care must be taken. Open Outer Ash Door Lift the two latches shown in figure 63 and ope...
Page 31 - Cleaning the accordion heat exchanger/firebox:; /2”. This will release the baffle from the positioning
31 PF100 Cleaning the accordion heat exchanger/firebox: Before starting to clean the inside of the firebox area it is recomended that all of the baffling be removed.Start with the upper heat exchanger baffle. See Fig. 66.Push straight upward on the lower ash slide angle aprox. 1/2”. This will releas...
Page 32 - Combustion Blower Cleaning; MUST be OFF and COOL; The wire to the combustion blower doesn’t need; Thumb Screws; Sealing Overlap
32 PF100 Combustion Blower Cleaning Remove the combustion blower heat shield.There are two latches that hold the shield in place . See Fig. 69Flip the latches up and pull the shield away from thefurnace. It can not be fully removed, it can only be moveddown over the wire until it hangs on the juncti...
Page 33 - Cleaning the Tube heat exchangers:
33 PF100 Clean the flue outlet throat ( this is the hole that goes up into the flue pipe). See Fig. 72. Note: The ESP probe sensing tip extends into this same area. CARE MUST BE TAKEN NOT TO DAMAGE THE ESP PROBE DURING CLEAN- ING. Bending of the ESP probe will make it difficult toremove if it should...
Page 35 - Feeder Parts
Page 36 - Specifications
36 PF100 E le ct ri ca l 1 2 0 V A C 6 0 H z. co m b u st io n b lo w er 1 .4 A M P au g er m o to r .7 A M P ig n it o r el em en t 2 .3 A M P co n tr o l b o ar d . 0 5 A M P au x . au g er ( o p ti o n al ) . 7 A M P 1 0 0 0 C F M b lo w er ( s h ad e p o le ) 6 .5 A M P 1 5 0 0 C F M b lo w er (...
Page 37 - Wiring Diagram
37 PF100 Wiring Diagram R e d W h it e B lu e B lu e O ra n g e W h it e -O ra n g e B lu e W h it e -B lu e M A IN T E R M IN A L B L O C K C O N N E C T P O W E R H E R E ! (L O A D ) (L IN E ) (N E U T R A L ) Wiring Diagram
Page 38 - Parts List
38 PF100 Rubber Grommet (7.5’) Hopper lid gasket 0-88-00248 Igniter Element Assembly 1-10-06620 Burn Pot Weldment 1-10-73403 Exchanger Baffle-Top 2-00-73418 Exchanger Baffle-Bottom 2-00-73314 Arrow Scraper 2-00-773850 Flame Guide 3-00-08534 Flame Guide Insulator 3-44-35263 Thermister Probe 3-20-0074...
Page 39 - Warranty
39 PF100 HARMAN CENTRAL HEAT WARRANTY5 YEAR LIMITED WARRANTY (Residential) 1 YEAR LIMITED WARRANTY (Commercial) Harman Stove Company warrants its central heat products to be free from defects in material or workmanship, in normal use andservice, for a period of 5 years from the date of sales invoice...
Page 40 - Testing Label
Page 41 - Fe
T em p D ia l M od e S el ec to r 1 T u re M o d e S el ec to r to O F F . 2 U se s h a k er h a n d le t o c le a n t h e h ea t ex ch a n g er t u b es .* * 3 S cr a p e th e a ir h o le s in t h e b u rn p o t. * * 4 F il l t h e h o p p er w it h p el le ts . 5 T ur n Fe ed A dj us te r t o “T e...
