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HearthStone Quality Home Heating Products Inc

                                          

STERLING Ht Gas-Fired Direct Vent heater                                        

22  

R

OUTINE 

M

AINTENANCE 

AND 

C

ARE 

 

 

The  Sterling requires  minimal  routine  maintenance 

and  care.  The unit should alway s  be  cool  and off 

when cleaned, or serviced. 

 

Once  a y ear  the unit an d  venting  system  should  be 

inspected  by  qualified service personnel to ensur e 

that they are clean, prevent the accu mulation of dust, 

lint and other debris, free  of obstruction, safe and in 

good working condition.  To clean the firebox, set the 

switch to the “OFF ” position, and turn  off the gas  at 

the gas control valve. 

 

When the unit is cool, remove the front cast and glass 

assembly  and carefully   remove  the decorative fiber 

log set taking care not to damage the logs or chip the 

enameled  cast  iron.    Clean the em ber  burner, and 

carefully  vacuum  the  entire  surface  of  the log set.   

Take care to thorou ghly vacuum the ports (holes) on 

the  top  of t he  ember  burner.  With   the  decorative 

fiber  logs o ut  of the fir ebox,  re-install the glass 

assembly  and  briefly  light the unit  according  to

 

lighting instructions

 described on

 Page 4

.  Check to 

ensure  a flame is burnin g  from each burner port.   

Check  the pilot.  The pil ot  flame  should  be large  

enough  to en gulf  the t hermocouple  and therm opile

.

  

Turn the unit off by setting the swit ch to 

“Off”

, and 

turning off the gas control  valve.  Allow the unit  to 

cool.

  

Check and clean any bur ner ports that are not  

burning,  or  not  burning  properly.   Clean the b urner 

ports  using  a  soft brush   or  vacuum  cleaner.  Adjust 

the  pilot flame height if necessa ry.    Complete  the 

cleaning  procedure by   carefully  placing the log set  

back in the firebox as described on in th e installation 

of log set on  page 17

.

  Close and refa sten the glass 

assembly  and front cast.   Turn  on the  gas,  light the 

unit and check for proper operation and correct fla me 

pattern.   

 

 

WARNING!  Do not use abrasives when 

cleaning the glass. 

 

 

Summary of Contents for Sterling-Ht 8532

Page 1: ... agency or gas supplier must perform installation and service In the Commonwealth of Massachusetts all installation of gas lines and gas fitting shall only be done by a licensed gas fitter or licensed plumber AVERTISSEMENT Assurez vous de bien suivre les instructions donné dans cette notice pour réduire au minimum le risque d incendie ou pour éviter tout dommage matéeriel toute blessure ou la mort...

Page 2: ...s and warranty claims if nece ssary Keep your original receipt in a saf e 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 Supplier Phone Read this Owner s Manual before installing or operating the STERLING heater Retain this manual for future reference SERVICE RECORD Date Who Performe...

Page 3: ...AND MAINTAINED BY QUALIFIED SERVICE PERSONNEL Verify the gas connections and venting systems with requirements of local regional or natio nal installation codes Qualified service personnel must inspect the gas heater before use and at least annually ALWAYS VENT TO THE OUTSIDE Never vent the gas heater to other rooms or buildings Do not con nect this gas appliance to a chimney flue serving a s epar...

Page 4: ...tion Clearances to combustibles must be maintained as specified in the Clearances To Co mbustibles section of this manual Due to high tem peratures the appliance should be located out of traffic an d away from furniture draperies clothing and other flammable materi als Children and adults should be al erted to the hazards of high surface temperatures and must stay away to avoid burns to skin or po...

Page 5: ...nds after the pilot is lit Release the knob and it will pop back out Pilot should remain lit If the pilot goes out repeat the operation If knob does not pop out when released stop 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 Turn gas cont...

Page 6: ...ct for Damage The Sterling is packaged by the m anufacturer to withstand normal shipment without dam age However damage can still occur during transit so take care to inspect for damage when unpacking and installing the unit If any damage or a missing part is detected immediately contact y our dealer Do not install or put into service a damaged or incomplete heater The unit should appear to be squ...

Page 7: ... wrench Phillips head screwdriver Other parts as required by local code Safety Glasses Gloves Stone Set AIR SUPPLY The Sterling Direct vent does not requi re additional installer provided ventilation STOVE DIMENSIONS CLEARANCES TO COMBUSTIBLES Always maintain clearances around the stove as shown in the Clearan ces to Com bustibles figures This allows for adequate ventilation Sterling Dimensions If...

Page 8: ...fices the same if you wish to burn at the lower 33 000 btus with the top exit kit Venting Exit Type Rear Exit 5 x8 Pipe Top Exit 4 x6 Pipe Gas Type NG LP NG LP Input rating Btu hr 0 2000ft 33 000 33 000 38 000 38 000 Maximum output Btu hr 0 2000ft 26 600 27 400 30 200 31 300 Minimum input rating Btu hr 13 600 11 900 13 900 11 600 Orifice size DMS 0 2000ft 43 52 55 63 38 51 53 63 Man pressure HI se...

Page 9: ...Hearthstone Quality Home Heating Products Inc STERLING Ht Model 8532 8 ...

Page 10: ...ent Cap Snorkel 36 Vinyl Siding Standoff 4 x 6 5 8 Round Ceiling Support Wall Thimble Covers Wall thimble If the vent air intake s ystem for any reason is disassembled it m ust be reinstalled per the instructions provided for in the initial installation Allowable Venting Configuration Graphs When determining the venting configuration you must consider the position of the termination cap There are ...

Page 11: ...himney Installation The use of an existing chimney as an air intake is not covered under the ANSI Z21 88 1998 CSA 2 33 M98 test methods and the resulting ITS WHI product certification The Code Authority Having Jurisdiction must be consulted prior to proceeding with this installation method 10 ...

Page 12: ...Hearthstone Quality Home Heating Products Inc STERLING Ht Model 8532 B Horizontal Terminations for 5 x 8 Pipe 11 ...

Page 13: ...Heating Products Inc STERLING Ht Model 8532 12 C Horizontal Terminations for 4 x 6 Pipe Requires the use of Top Exit Kit 95 60320 Note All top exit configurations require a minimum of a 24 section of pipe directly off the unit ...

Page 14: ...Hearthstone Quality Home Heating Products Inc STERLING Ht Model 8532 D Vertical Terminations Straight or 2 45O Elbows 4 x 6 Pipe Only 13 ...

Page 15: ...Hearthstone Quality Home Heating Products Inc STERLING Ht Model 8532 E Vertical Terminations 1 or 2 90O Elbows 4 x 6 Pipe 14 ...

Page 16: ...t to a top exit 4 x6 pipe a restrictor is supplied with the kit supplied with our restrictor e middle of the stove to position which corresponds to the ap propriate roximate locations of the settings 1 3 however it can be set in any position Ti ghten the screw in the desired setting Note These positions are based on lab results and can have some variance IF the vent air intake system is disassembl...

Page 17: ... which have holes in the side for acce ssing Do not remove these screws just loosen them Slide the side cover upward and remove The gas suppl y line connection is made to the Sterling s gas control valve located on the back of the unit in the lower right corner using a 3 8 NPT fitting The pipe must be sized to provide sufficient gas supply to meet the maximum demand of the unit The supply line mus...

Page 18: ...it in the firebox This log set is specifically designed to work with the provided em ber burner Do not use any other type of fiber logs wood logs or other materials in the firebox If the original log set is damaged or broken contact yo ur Hearthstone dealer for replacement The decorative fiber log s et will last a long tim e however they will break easily if subjected to rough or improper handling...

Page 19: ...he fire box Slide t he lower portion of the glass as sembly into the slots and push it flush against the firebox Rotate the clips into the locked position Re install the front cast by sliding the upper portion under the lip of the top and t ilting the bottom in flush with the glass assembly It should then slide downward and be snug in place Make sure t he glass assembly is properly secured to the ...

Page 20: ...ions sections of this manual the unit is ready to be lit for the first time Each unit is tested prior to shipment by the manufacturer so ignition should take place without failure However a number of small adjustments may be necessary to com pensate for variations in gas pressure altitude and other factors particular to each installation Prior to light ing the unit for the first time wait 5 minute...

Page 21: ...fected by a combination of heat output and the thermostat setting If your stove turns on and off too often try first reducing the burn cycle by turning the HI LOW knob on t he control valv e to a lower setting Using the variable output con trol the heat output of the unit can be reduced for mild fall and spring months or m aximized for the colder winter months This adjustm ent can be made by the h...

Page 22: ...g off all gas flow the pilot burner cannot be relit until the thermocouple has cooled allowing th e electromagnet to be released Approx 60 sec The gas control knob is designed to operate by hand Do not use any tools during this operation GAS CONVERSIONS All Sterling stoves are set up for use with Natural Gas when built However these uni ts are easily converted for use with LP and visa versa Th e i...

Page 23: ...et Take care to thorou ghly vacuum the ports holes on the top of t he ember burner With the decorative fiber logs o ut of the fir ebox re install the glass assembly and briefly light the unit according to lighting instructions described on Page 4 Check to ensure a flame is burnin g from each burner port Check the pilot The pil ot flame should be large enough to en gulf the t hermocouple and therm ...

Page 24: ...ram Sterling Ht DV Wiring Color KEY WIRING INSTRUCTIONS Caution Label all wires prior to disconnection when servi cing controls Wiring errors can cause improper and dangerous operation Verify proper operation a fter servicing Attention Au moment de l entretien des commandes étiquetez tous les fils avant le débranchement Des erreurs de câblage peuvent entraîun fonctionnement inadéquat et dangereux ...

Page 25: ...ATTERY IGINTOR BOX 0373 801 7210 105 IGNITOR SWITCH BATTERY OPER 5532 010 STG DV FIREBOX 7211 054 GAS MANIFOLD 5532 014 PILOT SHIELD 7211 136 ORIFICE PILOT LP 35mm CONVERT TOP 5532 015 INLET PLENUM 7211 214 AIR SHUTTER 5532 017 ORIFICE MOUNTING PLATE 7211 215 FIBER EMBER BURNER 5532 020 EXHAUST HEAT EXCHANGER 7211 216 BURNER INLET TUBE 5532 025 REAR TOP HEAT SHIELD 7211 316 GAS VALVE HIGH TURNDOWN...

Page 26: ...rohibited by local codes See owner s manual for details This appliance is not convertible for use with other gases unless a certified kit is used If the vent air intake system is disassembled for any reason reinstall per the instructions provided with the initial instructions This vented gas fireplace heater is not for use with air filters This appliance must be properly connected to a venting sys...

Page 27: ...g for off season summer pilot assembly may be dirty E Clean or replace the pilot assembly 2 Pilot will not stay lit after carefully following lighting instructions A Low or too high gas pressure A Check for proper inlet pressure for the gas being used B Faulty connections B Measure voltage between valve body and solder connection on the rear of the valve where the blue wire connects It should be n...

Page 28: ...ner does not come on replace the gas valve C Plugged burner orifice C Remove and check burner 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 of insufficient flame on thermopile A Adjust pilot flame size and assure that the flame is aimed directly at the thermopile B Insufficie...

Page 29: ...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 burner near the orifice usually creating a roaring noise like a blowtorch The problem is an imbalance of gas flow velocity and burning speed pattern A Excessive B Burner input underrated C Valve leak if flashback occurs with burner valve in off po...

Page 30: ...Form which is enclosed in the Stove warranty packet to the following address Hearthstone Quality Home Heating Products Inc Warranty Department 317 Stafford Avenue Morrisville VT 05661 8695 NOTE SENDING IN T HE SIGNED WARRANTY REGISTRATION FORM IS NOT A CONDITION OF WARRANTY COVERAGE OR HEARTHSTONE S PERFORMANCE ...

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