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Mountain Series CE Models 

Service Manual

 

PG 

20 

OF

 36

M0012.02  MAY 2017

An ongoing program of product improvement may 
require us to change specifications without notice. 

WOOD STONE CORPORATION

1801 W. Bakerview Rd.
Bellingham, WA 98226  USA

TOLL FREE

 800.988.8103

TEL

 360.650.1111

FAX

 360.650.1166

E-MAIL

 

[email protected]

woodstone-corp.com

GAS BURNER TROUBLESHOOTING

Symptom

Cause and/or Solution

INFRARED BURNER TROUBLESHOOTING

Many Wood Stone ovens are equipped with an underfloor infrared (IR) Burner� The IR Burner is designed to assist the Radiant Burner 
during start-up and during times of heavy usage� This is not the primary heat source for the oven� It is thermostatically controlled� The 
IR Burner’s Gas Valve and Pilot/Igniter are identical to those used on the Radiant Burner�

RFG-IR ovens

: IR Burner is not lighting� 

The display may be flashing “check”�

NOTE:

 You will not see flame at the black 

tubes on the front of the Burner�

CAUTION: 

Never attempt to light this 

Burner manually� To visually confirm that 
the Burner is lit, look through the gap 
next to the Pilot/Igniter�

Remember: 

The control will not allow 

the IR to light until after the rear 
(Radiant) Burner has lit� IR will then light 
only if the Hearth Temperature is below 
the Hearth Set Point�

Is the Radiant Burner running? If not, proceed first with Radiant Burner 
troubleshooting� (See previous pages of this manual�)

NOTE: 

On RFG-IR ovens, the IR Burner will not light until the Controller has 

verification that the Radiant Burner has lit� 
If the Radiant Burner is running, and the Controller is calling for IR heat, it will 
allow the IR Burner 90 seconds to light� If the Burner has not lit after this time, the 
Controller will flash “check”� Turn the oven OFF and then back on to reset�

1.

 

If the Radiant Burner is running, is the Controller calling for heat? (Hearth 
Temperature lower than Hearth Set Point)�

2.

 

Check for loose wire connections at the ICS Module and the Gas Valve� If the 
Controller is calling for the underfloor Burner to light the green light on the ICS 
Module should be lit�

If  Burner still does not light, proceed with the following:

3.

 

If there is spark determine if the Pilot is actually lighting� Look through the gap 
next to the Igniter to see if the Pilot is actually lighting, make sure flame rod is 
clean and that no debris is interfering with the flame�

 

If Pilot is lighting: 

Pilot flame should envelop 3/8 to 1/2" of the flame rod for 

the ICS Module to sense flame rectification� If the flame is not making good 
contact, the Pilot can be adjusted at the Gas Valve� Also, make sure that all 
Pilot Tube connections are tight, and that the flame rod is clean� Remove the 
cap screw next to the Pilot Tube to access the adjustment� If Burner still does 
not light (no rectification), check the Igniter for damage such as a cracked 
insulator� Replace Igniter if necessary�

 

If no gas is going to the Pilot: 

Make sure the Pilot orifice is not clogged�With 

the oven on and the Controller calling for underfloor heat check for 24 VAC 
at the Pilot Solenoid Terminals on the Gas Valve� If no voltage: Check wiring, 
replace ICS Module if necessary� If voltage is present but no gas is flowing to 
Pilot, replace the Gas Valve�

 

Continued on next page >

Содержание MOUNTAIN CE Series

Страница 1: ...CKANUT WS MS 4 RFG IR W CE MT ADAMS WS MS 5 RFG IR W CE MT BAKER WS MS 6 RFG IR W CE MT RAINIER WS MS 7 RFG IR W CE Service Manual Tel 1 360 650 1111 Fax 1 360 650 1166 www woodstone corp com WOOD STONE CORPORATION 1801 W Bakerview Rd Bellingham WA 98226 USA DOC NO M0012 02 REVISED May 2017 ...

Страница 2: ... corp com TABLE OF CONTENTS TABLE OF CONTENTS Cautions Warnings 3 Introduction 4 Wood Fired Ovens 5 Wood Electrical Diagram 6 Gas Fired Ovens 7 RFG Operation Sequence 8 RFG IR Operation Sequence 9 Gas Oven Components 10 Gas Oven Components 12 Controller Functions 13 Controller Troubleshooting 14 Gas Burner Troubleshooting 16 Common Repair Procedures 23 Gas Component Layout 25 RFG Wiring Diagram 26...

Страница 3: ...a under and around this appliance free and clear of any and all combustible materials WHEN THE OVEN IS NOT PROPERLY INSTALLED A FIRE MAY RESULT TO REDUCE RISK OF FIRE FOLLOW THE INSTALLATION INSTRUCTION A MAJOR CAUSE OF OVEN RELATED FIRES IS A FAILURE TO MAINTAIN REQUIRED CLEARANCES TO COMBUSTIBLE MATERIAL IT IS OF UTMOST IMPORTANCE THAT THIS OVEN BE INSTALLED ONLY IN ACCORDANCE WITH THESE INSTRUC...

Страница 4: ... in property damage injury or death Please read and understand all pertinent instructions before attempting to install or perform any kind of service on this equipment BE SAFE PRODUCT OVERVIEW There are three types of oven configuration available 1 Wood fired Wood is the heat source 2 RFG Heat source is one or more Radiant flame dome flame Burners 3 RFG IR formerly GG This model includes an additi...

Страница 5: ...replace temperature readout If 12 VAC is not present replace the transformer Display lights but readout is erratic or displays EEE Check that the Thermocouple connections on the readout Module are correct red to TC negative yellow to TC positive If the connections are good remove the Thermocouple wires from the display Jumper between TC and TC on the display the display should show the ambient tem...

Страница 6: ... change specifications without notice WOOD STONE CORPORATION 1801 W Bakerview Rd Bellingham WA 98226 USA TOLL FREE 800 988 8103 TEL 360 650 1111 FAX 360 650 1166 E MAIL info woodstone corp com woodstone corp com WOOD ELECTRICAL DIAGRAM WOOD OVEN ELECTRICAL DIAGRAM 120 VAC Wired by others European ovens are configured for 240 VAC ...

Страница 7: ...ally only activated during times of peak use and at the beginning of the day when the oven is first turned on BURNER FUNCTION Radiant Flame Burner The Radiant Burner located at the back of the oven is the main heat source for the oven and it runs continuously when the oven is turned on The control for this Burner is the Flame Height Control Knob located on the front of the oven left side There is ...

Страница 8: ... 8103 TEL 360 650 1111 FAX 360 650 1166 E MAIL info woodstone corp com woodstone corp com RFG OPERATION SEQUENCE BURNER OPERATION SEQUENCE RFG CE OVEN Pilot lights Power On ICS 2 ignition Module powers Igniter and opens Pilot valve Pilot does not light ICS 2 Module times out Controller will flash chec ICS 2 Module senses Pilot flame turns Igniter off SV2 opens Burner lights Dome Flame Light comes ...

Страница 9: ...ight ICS 2 Module times out ICS 2 senses Pilot flame Igniter off Dome Flame Indicator Lightcomes on SV2 opens Radiant Burner lights Radiant Burner remains on until oven is turned off IR If the floor temperature is above the Hearth Set Point then Controller does not power ICS 1 Module for underfloor Burner IR If the floor temperature is below the Hearth Set Point then Controller sends power to ICS ...

Страница 10: ...FG Both OFF The Transformer Plate is located beneath the oven in the front on the right hand side Mounted to the Transformer Plate are two Junction Boxes The larger Junction Box contains the 24 VAC transformer a Line Filter 1 A fuse for the incoming power 5 A fuse for the 24 VAC transformer output and a terminal strip for the incoming power connection Low voltage wiring for the oven is routed thro...

Страница 11: ... ICS Module for each Burner on the oven Each Module receives 24 VAC from the oven Control Board When the Module is powered it sends spark to the Igniter and powers the Pilot Solenoid on the Gas Valve When the Module senses flame rectification at the Pilot it stops sending spark to the Igniter and powers the Main Valve firing the Burner PILOT IGNITER ASSEMBLY The Pilot Igniter is used in conjunctio...

Страница 12: ...r of the center of the oven behind the IR Burner on an IR equipped oven It is embedded in the floor of the oven but is easily replaceable On all CE ovens the Thermocouple leads are covered with braided steel sheathing for EM and RF shielding SV 1 AND SV 2 WIRE HARNESSES These harnesses supply the voltage needed to activate and power their respective ICS Modules and Gas Valves They also send flame ...

Страница 13: ...R RFG AND WOOD ONLY MODELS CONTROLLER FUNCTIONS 1 360 650 1111 www woodstone corp com F C O I On Off button Press to turn oven ON OFF Hearth Set Point Display Indicates set point temperature of the Underfloor IR burner Hearth Temperature Display The floor hearth temperature will be displayed when the oven is turned on Sensor is embedded 25mm 1 below the hearth surface Display will read LO when the...

Страница 14: ... In addition to a bad Gas Valve wiring etc a Thermocouple that is grounding out can also cause the breaker to trip Note A power surge or brown out condition may also cause a fuse to fail Check for 24 VAC between the pink and the white wires at the terminal block on the oven Control Board inside the control box If 24 VAC is present make sure that the four nuts attaching the circuit board to the fac...

Страница 15: ...a Radiant flame to heat the oven s Hearth Temperature well above the Hearth Set Point if it is not managed correctly especially if the oven is not under much use at the time Contact your local distributor Temperature display scrambles and or is erratic oven intermittently blows fuses OR Display appears fine but the fuse blows instantly and or intermittently Thermocouple is shorting to ground There...

Страница 16: ...eight is adjustable by means of the Throttle Control Valve located on the front of the oven on the left side Burner does not light oven Controller is on no spark at the Burner Note On any call where the complaint is that the Radiant Burner will not light stay lit or is going out intermittently Wood Stone strongly recommends that the Radiant Burner be removed for inspection and cleaning The majorit...

Страница 17: ...e if it does not reset Symptom Cause and or Solution Continued from previous page Burner does not light oven Controller is on no spark at the Burner Note On any call where the complaint is that the Radiant Burner will not light stay lit or is going out intermittently Wood Stone strongly recommends that the Radiant Burner be removed for inspection and cleaning The majority of Radiant Burner problem...

Страница 18: ...as Valve Symptom Cause and or Solution Continued from previous page Burner does not light there is spark at the Burner Dome Flame Indicator Light on Controller is not lit 1 Verify that gas is going to the Burner using a manometer at the port below the Burner If no gas is present check for sufficient incoming gas pressure at the oven If incoming pressure is good check for 24 VAC at TH and TR termin...

Страница 19: ...drop is noted the gas supply to the oven is inadequate and needs to be increased 5 Excessive airflow from beneath the oven causing the Pilot flame to lift away from the flame rod Correct the airflow problem and make sure the Igniter Gasket is in place Ideally there should be no discernible draft below the oven 6 Defective Pilot Igniter replace If the Burner is still going out replace the Gas Contr...

Страница 20: ...lit If the Radiant Burner is running and the Controller is calling for IR heat it will allow the IR Burner 90 seconds to light If the Burner has not lit after this time the Controller will flash check Turn the oven OFF and then back on to reset 1 If the Radiant Burner is running is the Controller calling for heat Hearth Temperature lower than Hearth Set Point 2 Check for loose wire connections at ...

Страница 21: ...l strip on the back of the Control Board between the yellow and white wires If there is no voltage and Controller is on turn OFF power supplying the oven Disconnect the Thermocouple wires from the Control Board Terminal Strip Repower the oven turn the Controller back on Wait for the Radiant Burner to light If 24 VAC now present check remaining wiring Light on ICS Module is flashing Module has time...

Страница 22: ...A TOLL FREE 800 988 8103 TEL 360 650 1111 FAX 360 650 1166 E MAIL info woodstone corp com woodstone corp com GAS BURNER TROUBLESHOOTING INFRARED BURNER TROUBLESHOOTING CONTINUED Symptom Cause and or Solution Burner will not light or shuts OFF sometimes Igniter wire burned 1 Loose Pilot Tube tighten and replace Igniter 2 Inadequate oven venting or negative air pressure see the Venting section of th...

Страница 23: ...ed beneath the oven REMOVAL AND CLEANING OF RADIANT BURNER This procedure may be performed while the oven is hot We strongly recommend that the technician wear heat protective gloves and safety glasses goggles when removing the Burner 1 For Burner removal first turn the oven OFF Turn OFF the gas supply to the oven 2 Disconnect the Igniter wire from the ICS Module 3 Disconnect the Pilot Tube at the...

Страница 24: ...t nameplate beneath the oven THERMOCOUPLE REPLACEMENT 1 Disconnect the Thermocouple wires at the Junction Box located on the Transformer Plate below the oven These will be the red and yellow wires that have the brown sleeve Note Wood fired only The tc wires are connected directly to the temperature readout at the front of the oven 2 Cut the wire OFF at the base of the bad Thermocouple 3 Mark the T...

Страница 25: ...0 1166 E MAIL info woodstone corp com woodstone corp com GAS COMPONENT LAYOUT Pilot Igniter Radiant Burner assembly Pilot Tube Pilot Tube Throttle valve Burner Jets w Flame Retention Springs 3 4 gas connection SV 1 valve Control rod SV 2 valve Flexible gas pipe to Burner Flexible gas pipe to Burner Infrared Burner RFG IR MODELS PIPING LAYOUT Note Actual layouts may vary depending on the model and ...

Страница 26: ...am of product improvement may require us to change specifications without notice WOOD STONE CORPORATION 1801 W Bakerview Rd Bellingham WA 98226 USA TOLL FREE 800 988 8103 TEL 360 650 1111 FAX 360 650 1166 E MAIL info woodstone corp com woodstone corp com RFG WIRING DIAGRAM RFG CE MODEL 1A ...

Страница 27: ...11 www woodstone corp com Temperature Controller Control Panel Type 4 10 9 8 7 6 5 4 3 2 1 Thermo Couple Yellow Red Brown Pink White or Yellow Type 2 Controller CE DATE DIAG WD152 Rev 0 1 21 2014 Bellingham WA 1 360 650 1111 www woodstone corp com Thermo Couple Temperature Controller TB1 Control Panel Type 2 Filter Bead Red Yellow 2 red 5 orange P pink 8 white 4 brown 6 yellow TB4 R TB4 Y TB3 2 TB...

Страница 28: ...v 1 4 7 2014 Bellingham WA 1 360 650 1111 www woodstone corp com TB3 2 6 4 4 5 TB4 R Y 8 8 P J Box L N G GND XFMR 230 VAC 50 60 Hz wired by others fuse F2 2A H1 H1 H2 H1 X1 24 VAC X2 TB4 P Pink TB4 8 White fuse F1 5A GND 6EQ1 Filter Thermo Couple Temperature Controller TB1 Control Panel Type 2 Filter Bead Red Yellow 2 red 5 orange P pink 8 white 4 brown 6 yellow TB4 R TB4 Y TB3 2 TB3 5 TB4 P TB4 8...

Страница 29: ...rlay Type 3 Type 4 114 x 75mm 7000 0928 Gas Control Valve Invensys Robertshaw 70CE 0010 Ignition ICS Module Fenwall 70CE 0022 Igniter Spark to Pilot Natural Gas 70CE 0020 Igniter Spark to Pilot Propane 70CE 0020LP Ignition Module Backplate 50CE 0022 Igniter Gasket 7000 0777 Adapter 3 4 NPT to FBSPT 70CE 0012 Pressure Test Tap 70CE 0011 Ferrite Filter Hinged 70CE 0028 Ferrite Filter Bead 70CE 0029 ...

Страница 30: ...er Manifold pressures have been adjusted at the factory A variety of factors can influence these pressures so be sure to test the individual Burner Manifold pressures and adjust the valves as necessary to achieve the required pressures Factory specified Burner Manifold pressures for models equipped to burn Natural Gas NG NOTE RFG ovens are only equipped with the SV 2 valve RFG IR ovens are equippe...

Страница 31: ...s the following Wire the installation in such a way that incoming 230 VAC power to the oven is supplied only when the exhaust fan is turned on The easiest way to do this is for the same switch that turns on the exhaust fan to also turn on the power supplying the oven A qualified electrician should do this Do not attempt to wire into the oven control box or low voltage Junction Box ADDING TO OR ALT...

Страница 32: ...pressure inches water or mbar Note This pressure should not drop substantially and should remain at least 1 inch water column 2 49 mbar above the pressure for SV2 as noted on the data plate A large drop in pressure indicates an inadequate supply volume to the oven undersized piping shut OFF valves or fittings too long of a pipe run or a partially closed shut OFF 6 Check the pressure at the Radiant...

Страница 33: ...rness been lengthened by the installer in order to relocate the control Yes No 12A If so has the correct size and type of wire been used for the added sections Done 13 Check all electrical connections for tightness Yes No 14 Has any electrical connection other than incoming power been made to the oven electrical system Done 14A If yes call Wood Stone Done 15 Reconnect the power and check all contr...

Страница 34: ...ment 9 In coal fired oven configurations in the event any type of coal other than anthracite coal fuel has been used 10 Damage resulting from the use of chemical cleaning products in the oven as well as any damage from liquids or chemicals including water being poured or sprayed into the oven If any oral statements have been made regarding this appliance such statements do not constitute warrantie...

Страница 35: ...This page left intentionally blank PG 35 OF 36 M0012 02 MAY 2017 ...

Страница 36: ...Tel 1 360 650 1111 Fax 1 360 650 1166 www woodstone corp com WOOD STONE CORPORATION 1801 W Bakerview Rd Bellingham WA 98226 USA PG 36 OF 36 M0012 02 MAY 2017 ...

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