Procom Freestanding Electric Fireplace V50HYLC Service manual

FOR INSTALLERS AND SERVICE TECHNICIANS ONLY

GAS

FIREPLACE

SERVICE

MANUAL

Sherwood Industries Ltd. Duplication of this document is prohibited. All rights reserved.

August 2003 C-10100

This is a service guide designed by SHERWOOD INDUSTRIES LTD.

We hope this manual will assist you to identify and correct operational concerns you might experience in all ENVIROGAS appliances.

This service guide is designed for TRAINED SERVICE TECHNICIANS AND INSTALLERS.

This guide is NOT to be used by the homeowner.

If after reading this guide and following our recommendations and the problem still excists, please do-not hesitate to call our technical department.

Technical Division

SHERWOOD

TABLE OF CONTENTS PAGE

1) PILOT WILL NOT STAY LIGHT

A) IGNITION SYSTEM………………………………………………………. 1

B) IGNITION SYSTEM OK BUT PILOT WILL NOT LIGHT……………... 3

2) PILOT WILL NOT STAY LIT……………………………………………………… 7

3) MAIN BURNERS WILL NOT LIGHT…………………………………………….. 9

4) MAIN BURNERS WILL NOT STAY LIT…………………………………………. 11

5) SOOTING (ALL MODELS)…………………………………………………….…. 15

6) FLAME LIFTING

A) B-VENTED………………………………………………………………... 17

B) DIRECT VENTED………………………………………………………... 18

7) BLOWER OPERATION ………………………………………………………….. 19

8) ORIFICE SIZING CHART………………………………………………………… 20

9) STEP BY STEP SERVICE INSTRUCTIONS…………………………………… 21

10) GLOSSARY………………………………………………………………………. 23

SUGGESTED TOOLS LIST FOR SERVICING

GAS LEAK DETECTOR

MANOMETER

MULTIMETER

CORDLESS DRILL

WIRE STRIPPER/CRIMPER

WRENCHES, STANDARD AND METRIC

METAL SNIPS

JUMPER WIRES

NUMBERED DRILLS ((DMS))

Industries 2003

1(PILOT WILL NOT LIGHT

NO SPARK

A) IGNITION SYSTEM

Make sure that wires are not broken, frayed and that all connections are tight at both the piezo ignitor and electrode.

Make sure that ceramic on the electrode is not broken.

Carefully try to spin the porcelain.

Make sure a 1/8” (3.175mm) gap is maintained between electrode and pilot hood.

SEE PAGE 2 FIGURE 1.

Make sure the piezo ignitor is not loose.

Make sure piezo ignitor is working properly. Place a screwdriver next to ignitor, and press ignitor. If it sparks,

OK.

Replace with only manufactures parts

IF IT DOES, replace electrode.

Replace electrode.

Retighten hex nut on back of the ignitor and make sure bracket is secure on the valve.

IF IT FAILS, replace piezo ignitor.

Sherwood Industries Ltd. ENVIRO PAGE 1

3.175mm


B) PIEZO IGNITOR OK BUT PILOT WILL STILL NOT LIGHT

Make sure all gas lines have been connected with no leaks.

Make sure that the gas is

“ON” (NG) Natural gas and

(LP) Propane tanks are full.

Make sure the appliance service valve is in the “ON” position.


Test to make sure there is no air in the gas line.


Make sure that the valve has not reset itself.

(All valves have an interlock safety device.)

Make sure pilot injector is not clogged.

Correct if necessary, test for gas leaks in an approved manner.

Correct if necessary.

Turn service valve to the

“ON” position.

Use a match to see if air or gas comes from the pilot assembly.

Wait 60 seconds for the safety to reset itself.

Clean the pilot injector if necessary.


EXPLODED VIEW S.I.T PILOT ASSEMBLY

To remove pilot injector :

Remove the two screws that hold the pilot assembly to the burner control assembly.

Lift the assembly straight up being careful not to damage any components.

Using a 10 mm wrench undo the securing nut on pilot tubing and pull tubing down to access injector.

Being careful not to damage the ceramic spark electrode.

Replace the injector and reinstall the pilot tubing, always to perform a gas leak test before lighting the pilot assembly.

The number on the side of the injector will determine the size. This number is in millimeters.

PILOT HEAD

THERMOPILE

PILOT INJECTOR

SPARK ELECTRODE

THERMOCOUPLE


3.5” wc BELOW 0

3.5” wc ABOVE 0

INLET GAS PRESSURE

7” wc (NG) NATURAL

GAS

NO PRESSURE 1.75” wc BELOW 0

1.75” wc ABOVE 0

OUTLET GAS PRESSURE

3.5 “ wc (NG) NATURAL

GAS

SUPPLY PRESSURES

NATURAL GAS PROPANE

50% TURN DOWN

33% TURN DOWN


190 mv DC

CHECKING THERMOPILE FOR PROPER VOLTAGE

Place the leads of the multimeter on the TP/TH and TP terminals on the valve as shown.

With the switch in the “ON” position, the readings should be approximately 190mV DC (this an average reading) or greater for proper Thermopile operation.

The main burners may not come ON if the readings are less than 145mV DC.

If a thermostat has been installed. Place the

ON/OFF/THERMO switch in the THERMO position; place the leads of the multimeter on the TP/TH and TH terminals on the valve or on the connections at the thermostat.

MV reading should be higher than 190 mV DC for proper valve operation.

THESE READINGS SHOULD BE CONSTANT WITH NO

FLUCTUATION.

2 to 6mv DC

THERMOCOUPLE

Sherwood Industries Ltd.

CHECKING

THERMOCOUPLE FOR

PROPER VOLTAGE

Place one lead from the multimeter on the thermocouple lead, and the other lead from the multimeter on the back of the valve where the blue wire is soldered to the valve.

These readings should be between 8 and 16mV DC.

If these readings are 2 to 6 mV DC, the Thermocouple should be replaced

When using a S.I.T EUROSIT 630 SERIES gas valve, place one lead from the multimeter on the thermocouple lead and the other lead into the adapter located on the back of the valve, there are two blue wire a inserted into this adapter.

ENVIRO PAGE 6

Make sure the gas pressure is correct for type of fuel you are using.


Make sure pilot flame is engulfing the top 3/8” of the thermocouple.


Make sure thermocouple connections on valve are tight.

DO NOT OVER TIGHTEN!!!

Make sure the thermocouple line has no kinks and is clean on both ends. Also check the thermocouple for damage.

Make sure the thermocouple has proper voltage (DC

VOLTAGE).

2) PILOT WILL NOT STAY

LIT

Use a manometer on the inlet side of the valve to measure gas pressure. Adjust inlet pressure or contact your gas supplier.

Thermocouple should be the same height as the pilot hood.

Adjust pilot as required.

Check for clogged pilot injector.

Thermocouple connections should be hand tight plu1/4 turn.

Clean thermocouple ends with Emery cloth or an abrasive sponge.

DO NOT USE A METAL FILE.

Replace if damaged.

Using a multimeter, insert adapter between valve and thermocouple, if the readings are less than 2 TO 6 mV DC, replace thermocouple.



S.I.T EUROSIT MODULATING 630 SERIES


3) MAIN BURNERS WILL

NOT LIGHT

Make sure gas valve knob is in the “ON” position.



Turn valve to the “ON” position.

Make sure that the “ON-OFF

THERMO” switch is in the

“ON” position.

Turn switch “ON”.

Make sure that the thermostat is “NOT” in the lowest position.

Turn thermostat “UP”.

Make sure that all control wires are not damaged, broken or frayed and that all wire connections are tight.

Replace damaged wires as necessary. Gently squeeze connectors with a pair of pliers and reinstall wires.

Make sure that the thermopile connections are tight on the valve.

Tighten the two screws on valve if necessary

“TP/TP-TH” terminals on valve.

Make sure millivolt readings from thermopile are within manufactures specifications. MAKE SURE

MILLIVOLT READINGS ARE

CONSTANT.


Sherwood Industries Ltd.

Continued on next page.

ENVIRO

Place leads of multimeter on the “TP/TH-TP” terminals on gas valve. If the readings are less than

145mV DC, replace

thermopile

PAGE 9

MAIN BURNERS WILL NOT LIGHT CON’T.

Check spill switch operation on B-vented models only


Check the “ON-OFF” switch and thermostat for proper operation.

Bypass spill switch with a jumper wire as shown. If the unit starts, replace the spill switch. DO NOT LEAVE BY

PASSED IN.

Use a jumper wire. If the unit starts, replace switch if necessary.

Make sure that the main burner orifices are not clogged or damaged.

Remove the top tray.

Remove orifice and clean.

Replace if damaged.


Make sure pilot flame engulfs the thermopile and does

“NOT” have a yellow luminous flame.


Make sure millivolt readings from thermopile are constant.

4) MAIN BURNERS WILL

NOT STAY LIT

Adjust pilot if necessary.

Check outlet gas pressure.

Check for clogged pilot injector or blocked air inlet.

Using a multimeter check thermopile. If not constant replace thermopile.

Make sure all wiring is not damaged or broken and all connections are tight.

B-VENTED MODELS

Check spill switch.

Check to make sure the vent is drafting properly.


By pas spill switch.

If unit starts, replace spill switch.

Check for spillage.

SEE PAGE 12.

Make sure all venting meets manufactures specifications as well as local gas and building code requirements.


Check chimney for blockage or restriction.




SAMPLE DIRECT VENT CHIMNEY INSTALLATIONS

ALL MODELS


SAMPLE B-VENTED CHIMNEY INSTALLATIONS

ALL MODELS

Sherwood Industries Ltd. ENVIRO

INSERT MODELS

MUST BE FULLY

LINED AND SEALED

PAGE 14

5) SOOTING

Make sure log placement is in the correct location.

Make sure there is sufficient air supply.

Check air shutter on the venturi tube for proper primary air adjustment.

SEE PAGE 16.

Make sure orifice matches that on the rating plate.

Make sure outlet (manifold) pressure is correct.

Correct to manufactures specifications.


Outside air supply may be required on B-vented models.

Increase primary air.

Open air shutter.


Use a manometer to check the gas pressure.


Make sure the unit has been derated for high altitude applications.

(if required)

Check to make sure that the vent is drafting properly.




IF THE AIR SHUTTER IS

OPENED WIDER, THE

FLAME COULD APPEAR

ALMOST ALL BLUE

WITH FLAME LIFTING

BEING THE END RESULT

IF OPENED TOO MUCH

WITH THE AIR SHUTTER

SET PROPERLY, THE

FLAME WILL SIT ON THE

BURNER PORT AND THE

FLAME PATTERN WILL

START AT THE BOTTOM

WITH A BLUE FLAME

THEN TURNING TO A

WHITE ALMOST

YELLOW FLAME WITH A

SLIGHT ORANGE EDGE

AS THE AIR SHUTTER

IS CLOSED, THE

FLAME COULD

APPEAR TALLER WITH

A VERY LAZY BLACK

ORANGE TIPPED

FLAME PRODUCING

CARBON (SOOT)


6) FLAME LIFTING

Check air shutter on the burner tube (venturi).

Make sure there are no leaks in the venting system.

A) B-VENTED MODELS

Adjust air shutter, by closing shutter.

DO NOT GO TOO FAR OR

THE UNIT WILL SOOT.

Seal venting if necessary.

Improper venting configuration.


Make sure that manifold

(outlet).

Pressure is correct.

Use a manometer to check gas pressure.



B) DIRECT VENT MODELS

Check air shutter on the burner tube (venturi).

Make sure there are no leaks in the venting system.

Make sure the unit is not recirculating flue products.

Make sure the gas pressure is correct for fuel being used.

Make sure the orifice size is the same as the rating plate.

Add a vent restrictor ring.

SEE OWNERS MANUAL.

Adjust air shutter.

Close until flame sits onto the burner ports.

Seal exhaust tube with high temperature silicone.

Also make sure that combustion air pipe is sealed.

Check flue for blockage or high wind situations.

Use a manometer to check gas outlet (manifold) pressure.



Only if necessary.


7) BLOWER DIAGNOSIS

ALL MODELS

Check to make sure that the fan is plugged in.

Make sure the fan control knob is in the “ON” position.

Make sure the two wires are connected to the fan temperature sensor.

Make sure that the two wires are connected to the blower.

Make sure there are no broken, damaged or frayed wires.

Make sure that the fan sensor is secure and that it is not damaged.

Using a supply cord connected to the blower, plug the blower directly into wall outlet.

If the blower does not work, replace the blower.

By pass the fan temperature sensor with a jumper wire.

If the blower works, replace the fan temperature sensor

By pass the fan controller with a jumper wire.

If the blower does not work, replace the fan controller.

MAKE SURE THAT THE FAN SENSOR IS AT OPERATING

TEMPERATURE BEFORE TESTING THE FAN CONTROLLER.


ORIFICE SIZING

CHART

GAS PROPANE

DRILL# SIZE 3.5” 3.8” 10” 11”

70 .0280 1991 2074

69 .0292 2165 2256

5221 5476

5678 5956

68 .0310 2440 2542

1/32 .0313 2487 2591

67 .0320 2600 2709

66 .0330 2765 2881

6400 6713

6524 6843

6820 7153

7253 7607

65 .0350 3110 3240

64 .0360 3291 3429

63 .0370 3476 3622

62 .0380 3666 3820

8158 8557

8631 9053

9117 9563

9617 10087

3/64 .0469 5585 5819

1/16 .0625 9918 10334

52 .0635 10238 10667

51 .0670 11398 11876

50 .0700 12441 12962

49 .0730 13530 14097

48 .0760 14665 15279

5/64 .0781 15487 16136

47 .0785 15646 16302

46 .0810 16658 17356

45 .0820 17072 17787

44 .0860 18778 19565

43 .0890 20111 20954

42 .0935 22197 23127

3/32 .0938 22339 23275

41 .0960 23399 24379

40 .0980 24384 25406

39 .0995 25137 26190

38 .1015 26157 27253

37 .1040 27462 28613

36 .1065 28798 30005

7/64 .1094 30388 31661

35 .1100 30722 32009

26854 28167

29896 31357

32633 34228

35490 37225

38467 40347

40622 42608

41039 43045

43695 45831

44780 46969

49256 51663

52753 55331

58221 61067

58596 61460

61377 64377

63961 67087

65933 69156

68610 71964

72032 75553

75537 79229

79707 83603

80582 84522

82055 86066

STEP BY STEP SERVICE INSTRUCTIONS

These appliances do require to be serviced. Our best recommendation is that the appliance be serviced (1) once a year, maybe just before the heating season starts.

Annual service should and inspection should include:

⇒ Open the two side panels or remove the face frame from the appliance. Vacuum all areas around the convection blower making sure there are no obstructions near the convection blower or in the impeller fan blades.

⇒ EG-95 inserts and freestanding fireplaces convection blowers do require lubrication. Use lightweight oil 20 SAE, 3 in 1 oil, or sewing machine oil (2 drops only). Too much oil will contract dust and dirt, which could cause premature breakdown of the convection blower.

⇒ Check all wiring for loose connections and damage to any of the wires.

⇒ Check to make sure that the flue is connected and that the flue is not plugged and that it is free from obstructions.

⇒ Also check to make sure that the fresh air, if installed, is not clogged and that it is free from obstructions.

⇒ Open the glass door by undoing the ½” bolt on the right hand side of the appliance, swing the door all the way open and gently lift the door of the two pins on the left hand side of the appliance.

⇒ Carefully remove the log set from the firebox. NOTE: The edges of the logs become brittle with heat over time so they could be damaged when removing the logs. Remove the glowing ember material making sure not to drop any of the ember material, which could drop into air passages or drop on the pilot assembly.

⇒ Inspect the pilot assembly for build up on the Thermocouple and Thermopile; also make sure that the pilot assembly has not been damaged.

⇒ Vacuum all areas inside the firebox in and around the burner tray, control panel and surrounding areas.

⇒ Carefully replace the logs and glowing embers into the firebox making sure that the log and ember material are in the correct location (refer to the owner and operators manual).

⇒ Inspect the door gaskets to make sure that it is not cracked broken or frayed. Place the door assembly back on the two pins on the left side of the appliance, close the door and tighten the

½” bolt on the right hand side, make sure that the gasket is fully sealed (pay special

attention to the corners of the bay window). Visually check for a small gap, if there is a gap, open the door and fluff the gasket up a little, reinstall the glass and re inspect the gasket to make sure it has sealed.

⇒ Relight the appliance, before you turn the gas control knob to the “ON” position, do a millivolt reading from the thermopile. Turn the gas control knob to the “ON” position, before the main burners are turned “ON” do another millivolt reading at the thermopile to make sure there is no change.


⇒ Turn the switch to the “ON” position; check the millivolt readings at the thermopile make sure that the readings meet manufacters specifications. Turn the unit “OFF”.

⇒ Install a manometer on the inlet side of the gas valve marked (E), re light the appliance make sure that the inlet pressure meets the manufactures specifications.

⇒ Shut the unit “OFF” once again and do an outlet (manifold) pressure test. Relight the appliance and make sure the outlet (manifold) pressure is within manufactures specifications.

⇒ FINALLY, check to make sure that the unit is venting properly by placing a match in the dilution air outlet or in the draft tube on insert models. If the match is blown out then there is some sort of restriction. Correct if necessary.

CLEANING THE APPLIANCE

Only use a very soft cloth an a non abrasive cleaner, DO NOT use any alcohol’s, mineral spirits, gasoline’s or abrasive cleaners.

⇒ When cleaning the glass there could be some stubborn material left on the glass, DO NOT use a scraper or abrasive cleaning agents on the glass because this could scratch the glass which in turn will make he glass weak at the point of the scratch. There is a glass cleaner that is specially designed for gas fireplaces, which can be purchased at your local dealer.


10) GLOSSARY

B-VENTED SYSTEM

A venting system using only approved double wall pipe and approved B-vent components. This system also uses room air for proper venting action through the dilution air inlet mounted on the back of the unit.

CONTINUITY TEST

By using a multimeter set on OHMS, is determined if the circuit is complete, or continuous (no break in the circuit).

DIRECT VENT SYSTEM

A venting system sealed from the structure for both the exhaust gases and fresh air supply.

ELECTRODE (ignition)

Receives spark from the piezo ignitor to light the pilot.

IGNITOR (piezo)

A component used to create an electrical spark to the electrode to light the pilot.

IMPINGEMENT

When flame comes in contact with physical components. Impingement can cause incomplete combustion resulting in carbon monoxide production as well as soot.

MANOMETER

Instrument used to measure gas pressure.

MILLIVOLT

One –one thousands (1/1000) of a volt (.001mV DC)

MULTIMETER

Instrument used to measure Volts. Amps, Ohms, (Volts DC, AC)

ORIFICE

A component that controls gas flow through the burners.

PILOT INJECTOR

A component that directs gas flow through the pilot assembly.

PRESSURE REGULATOR

A device used to maintain downstream gas pressure.

RATING PLATE

A plate in the appliance which shows all certifications and what type of fuel and what the appliance is rated for (example: BTU’s, gas type, serial#, etc.).

SOOTING

Carbon build up produced by incomplete combustion of the fuel being used.

SPILLAGE

When flue products do not properly exit the structure through the venting system.

SPILL SWITCH

A temperature sensitive switch designed to shut the appliance off in the case of improper venting action.

THERMOCOUPLE

A device used to generate power with heat from the pilot, up to 25mV DC.

THERMOPILE

A device used to generate power with heat from the pilot, up to 750mV DC.

VENTURI

Where gas and air are mixed before entering the burner tube.


Procom Freestanding Electric Fireplace V50HYLC Service manual

FOR INSTALLERS AND SERVICE TECHNICIANS ONLY

GAS

FIREPLACE

SERVICE

MANUAL

190 mv DC

5) SOOTING

6) FLAME LIFTING

B) DIRECT VENT MODELS

7) BLOWER DIAGNOSIS

ALL MODELS

ORIFICE SIZING

CHART

10) GLOSSARY

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