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HearthStone Quality Home Heating Products, Inc.

                                                                       

MODENA 8140 Gas-Fired Direct-Vent                           

 

 

 

17

gases are heavier than air and will settle on the floor
If you smell gas immediately follow the What To Do 
If You Smell Gas!  
warning on the cover of this 
Manual.

 If you do not smell gas, proceed to the next 

step. 

5.

 

Turn gas control knob counter-clockwise to “PILOT”. 

6.

 

Push in the control knob all the way and hold in. 
Immediately light the pilot with the gas lighter (push in 
and “click” the piezoelectric spark igniter button 
several times until lit). Continue to hold the control 
knob in for about 20 seconds after the pilot is lit. 
Release the knob and it will pop back out. The pilot 
should remain lit.  If the pilot goes out, repeat the 
operation. 

 

 

If knob does not pop out when released, stop, shut 
off the gas supply to the heater and immediately call 
a qualified service technician or gas supplier. 

 

 

If the pilot will not stay lit after several tries, turn 
the gas control knob “OFF” and call a qualified 
service technician or gas supplier. 

 

7.

 

After the pilot lights, turn the gas control knob counter-
clockwise to “ON”. 

8.

 

If the ON/OFF/remote switch is set to “ON”, the stove 
should now light. If the remote (or thermostat) is 
installed, set the ON/OFF/ remote switch to “remote” 
and program the remote to “ON”. Then set the desired 
temperature. 

9.

 

Shut the gas control valve access door. 

10.

 

If “Remote” was selected, set remote to “ON” and set 
desired temperature setting. Normally, if Remote 
position was selected, the main burner is cycled on and 
off by the thermostat or the “on/off” switch located on 
the bottom of the thermostat body. 

 

NOTE: 

When pressing/clicking the piezoelectric spark 

ignition button to light the pilot, watch through the glass 
(front) of the unit. Click the igniter button until a flame is 
visible at the pilot. Once the pilot is lit, continue to press on 
the gas control knob for another 20 seconds, then release. 
Ascertain that the pilot is still lit by looking through the 
front door. If lit, then turn the gas control knob fully 
counter-clockwise to the “ON” position. If the pilot fails to 
light, or if it went out due to a premature release of the gas 
control knob while depressed in the “PILOT” position, wait 
60 seconds for the Interlock to release. Then repeat

 the 

lighting process as described in this section of the manual.

 

 

Once the pilot is lit, the gas control knob is been turned to 
the “ON” position, and the ON/OFF/Remote switch is 
turned to “ON”, the main burner should light immediately. 
If you would like to use the thermostat and it is installed, 
switch the ON/OFF/Remote switch to thermostat. Turn the 
remote transmitter to "ON" and set it to a higher position so 
that it "calls" for heat in order to light the main burner (i.e. 
turns the unit on). Note that the remote thermostat controls 
the on/off cycling of the main burner, but the pilot remains 

lit regardless of the remote thermostat setting. The only way 
to turn the pilot off is to turn the gas control knob fully 
clockwise to the “OFF” position. 

 

T

T

URN 

O

FF 

G

AS 

T

A

PPLIANCE

 

1.

 

Set the Remote thermostat to the “OFF” position or 
turn the ON/OFF/REMOTE switch to the “OFF” 
position. 

2.

 

If shutting the unit off for the non-heating season, turn 
the gas control knob fully clockwise to the “OFF” 
position. Do not force the knob to turn. 

 

A

IR 

S

HUTTER

 

The air shutter is used to regulate the air-to-gas combustion 
mixture, which in turn influences the size and color of the 
flames. The air shutter is factory set in the general location 
needed for Natural Gas (NG), however, if the unit is not 
burning as well as it should, then the air shutter may need 
adjusting. The air shutter may need adjustment once the 
unit has been installed to compensate for variations in 
supply line pressure, restriction plate position, altitude, fuel 
gas type conversions, and other variables. 

 

To determine if the air shutter needs adjustment, it is 
necessary to view the flame pattern with the variable output 
control knob at its highest setting. Allow the unit to operate 
for at least 10 minutes to allow the entire unit to reach 
temperature, and for the flame pattern to stabilize. 
Generally, the more air (open shutter) in the mixture, the 
bluer the flame. Less air (closed shutter) results in a more 
yellow flame, but too little air will result in incomplete 
combustion, low efficiency and a dirty burn. There are two 
simple guidelines to aid in determining the correct flame 
pattern: 

 

 

If the flame at the base of the stones is completely blue, 
the air shutter is possibly open too far; 

 

If the flame is dirty (sooty) or licks the top of the stove, 
the air shutter is possibly closed too far. 

 

Some conditions cannot be corrected through air shutter 
adjustment; an adjustment must be made to the gas supply 
pressure or by changing the restriction plate setting. 
Qualified service personnel must perform supply 
line/manifold gas line pressure adjustments and restrictor 
plate adjustments. Do not attempt to complete any part of 
the installation or adjustment of this unit unless technically 
qualified to do so. 

 

A

IR 

S

HUTTER 

A

DJUSTMENTS

 

The air shutter adjuster, located under the valve access 
door, at the lower front of the unit, is adjustable while the 
stove is burning. Under the burner assembly, but above the 
valve is the air shutter handle. It is a steel handle bent down 
for you to grasp. It uses a thumb screw to lock the shutter 
position once set correctly. 

This handle and screw will get 

very hot during operation

. Loosen the thumb screw and 

slide the shutter back and forth a couple of times to 
understand the “throw” of the shutter. Push the handle 

Summary of Contents for Hase-Modena 8140

Page 1: ...alified installer service agency or gas supplier must perform installation and service of this appliance In the Commonwealth of Massachusetts all installation of gas lines and gas fittings must be per...

Page 2: ...Keep your original receipt in a safe place as proof of purchase Serial Number Fuel type check one Natural Gas Liquid Propane Sold by Phone Date of Purchase Installed by Phone Date of Installation Gas...

Page 3: ...e providing years of quality performance WARNING ENSURE ONLY AN NFI CERTIFIED SERVICE TECHNICIAN INSTALLS AND REPAIRS THIS APPLIANCE A QUALIFIED SERVICE TECHNICIAN MUST INSPECT THE APPLIANCE BEFORE US...

Page 4: ...g and flammable material Certified for use by Board of State Examiners of Plumbers and Gasfitters 100 Cambridge Street Room 1511 Boston Massachusetts 02202 SPECIFICATIONS LISTED AS Gas Fired Direct Ve...

Page 5: ...If you note continuous condensation on the window glass or dripping water from any part of the unit or venting system chimney immediately discontinue operation of the unit and contact qualified servi...

Page 6: ...kits and components are supplied separately Failure to use the venting components specified by Hearthstone QHHP Inc will void your warranty and could result in inefficient or unsafe operating conditio...

Page 7: ...ll as full access for periodic cleaning and servicing Caution These clearances represent minimum distances in all cases which through testing in an independent laboratory to ANSI and CSA standards wil...

Page 8: ...e Heating Products Inc Modena Model 8140 8 1 rear clearance to combustible Minimum12 pipe section Wall pass through Termination cap 90 degree elbow Minimum 24 pipe section Figure 3 Minimum Vent Config...

Page 9: ...HearthStone Quality Home Heating Products Inc Modena Model 8140 9 Acceptable Direct Vent TERMINATION Cap locations Figure 4 Termination Location Clearances...

Page 10: ...nt configurations Controlling the draft also changes the aesthetics of the flame The restriction plate consists of a rotating shutter in the flue connector This shutter is attached to a rod that protr...

Page 11: ...HearthStone Quality Home Heating Products Inc Modena Model 8140 11 NOTE These positions are based on lab results and can have some variance Figure 7 Venting Configurations Restriction Settings...

Page 12: ...nnector Co Axial to Co Linear Appliance Connect Masonry approved not to exceed 16 measured from the stove top MINIMUM VENT KIT Vent connector Provided with unit 24 Straight 90 degree elbow 12 Straight...

Page 13: ...REMOTE THERMOSTAT PLACEMENT Place the thermostat transmitter in the same room or living space as the unit Since the transmitter is the device measuring the temperature you will want to keep it off th...

Page 14: ...flexible line to avoid undue mechanical load on the valve and to ease thread alignment but refer to local codes CAUTION Check Gas Type GAS SUPPLY Isolate the Modena from the gas supply piping system b...

Page 15: ...r assistance INSTALLATION OF THE FIRE STONE SET Follow the order of the following photos in order to install the stone set Stone set shown in white for better view actual stones will be dark gray 1 In...

Page 16: ...l all around the appliance area for gas Be sure to smell next to the floor because some gases LP are heavier than air and will settle on the floor If you do not smell gas after this five minute period...

Page 17: ...in order to light the main burner i e turns the unit on Note that the remote thermostat controls the on off cycling of the main burner but the pilot remains lit regardless of the remote thermostat se...

Page 18: ...AME THERMOPILE PILOT CLIP Figure 11 Pilot assembly WARNING The control has an interlock device If the stove was lit it will not relight immediately After shutting off all gas flow the pilot burner can...

Page 19: ...1 2 minutes without the stone set in place Turn the unit off by setting the thermostat to OFF and turning the gas control valve off Allow the unit to cool Check and clean any burner ports that are not...

Page 20: ...t of anti seize compound in each one 8 Place the gasketed new glass frame onto the door 9 Important Center the glass and ensure that the edges of the glass are parallel with the edges of the opening 1...

Page 21: ...m is disassembled for any reason re install per the instructions provided in the venting section of this manual being sure to reassemble and reseal the venting properly PARTS LIST Part Part Name 7211...

Page 22: ...rear plate up tight to the wall Using the three screws provided screw the steel plate to the wall Once the screws are in place and the stove is in its proper location use the provided allen wrench to...

Page 23: ...ire insulation If properly connected and no spark replace igniter E Clean or replace the pilot assembly 2 Pilot will not stay lit after carefully following lighting instructions A Low or too high gas...

Page 24: ...orifice clean or replace Note do not use any metal cleaning device as this may damage the orifice 4 Pilot and burner come on but go out after some warm up A Inconsistent or insufficient flame on therm...

Page 25: ...2 Clear obstructions B3 Clear obstructions C If gas pressures are correct and the flames stay the same adjust the air shutter for a proper burn 9 Burner flashback Air gas mixture ignites inside the bu...

Page 26: ...ir intake system is disassem b led for any reason r einstall per the instru ctions provided with the initial instructions This ven ted gas fi replace heater is not for use witha ir filte rs This appli...

Page 27: ...third 3rd anniversary of the Purchase Date 5 year limited warranty Hearthstone warrants the following parts of the Stove against the following occurrences that result from defects in material or work...

Page 28: ...TATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU THE WARRANTIES CONTAINED IN THIS DOCUMENT EXTEND ONLY TO THE ORIGINAL PURCHASER OF THE...

Page 29: ...29 NOTES...

Page 30: ...30 NOTES...

Page 31: ...31 NOTES...

Page 32: ...lt for front door 1 Once the door is removed place it carefully aside you now have access to the glass frame 2 Remove the 12 mounting screws see figure 17 that attach the frame and glass to the firebo...

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