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Service Manual
MOUNTAIN SERIES
Commercial & Residential Stone Hearth Oven
Gas-Fired, Wood-Fired and
Gas/Wood Combination Models
MOUNTAIN SERIES WS-MS-(4, 5, 6, 7)
MOUNTAIN HOME WS-MH-(4, 5)
TRADITIONAL SERIES WS-TS-(5,6)
WOOD STONE CORPORATION
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
www.woodstone-corp.com
Toll Free 800.988.8103
Tel 360.650.1111
Fax 360.650.1166
DOC NO M0014.09
REVISED APRIL 2019
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Table of Contents
Troubleshooting
Related Manuals for Wood Stone MS-5
Summary of Contents for Wood Stone MS-5
- Page 1 Service Manual MOUNTAIN SERIES Commercial & Residential Stone Hearth Oven Gas-Fired, Wood-Fired and Gas/Wood Combination Models MOUNTAIN SERIES WS-MS-(4, 5, 6, 7) MOUNTAIN HOME WS-MH-(4, 5) TRADITIONAL SERIES WS-TS-(5,6) WOOD STONE CORPORATION Toll Free 800.988.8103 1801 W. Bakerview Rd. Tel 360.650.1111 Bellingham, WA 98226 USA Fax 360.650.1166...
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Page 2: Table Of Contents
TABLE OF CONTENTS Mountain Series Ovens � � � � � � � � � � � � � � � � � � � � � � � 3 Before You Begin��� � � � � � � � � � � � � � � � � � � � � � � � � � � 4 Product Overview �... -
Page 3: Mountain Series Ovens
MOUNTAIN SERIES OVENS Mountain Series Service Manual WOOD STONE OVEN SERVICE MANUAL FOR GAS-FIRED AND WOOD-FIRED MOUNTAIN SERIES OVENS FOR WS-MS-(4, 5, 6 AND 7) MODELS TS-(5, 6) MODELS ADDITIONAL COPIES AVAILABLE UPON REQUEST This manual is for use only by qualified service personnel. It is recommended that this oven be installed, maintained and serviced by qualified professionals. -
Page 4: Before You Begin
SERVICE DEPARTMENT AND WARRANTY INFORMATION If you have any questions please call the Wood Stone Service Dept� at 1-800-988-8103� Normal hours are 8 a�m� to 5p�m� Pacific Standard Time Monday through Friday� After hours and on weekends call and follow the instructions to leave a message on the emergency service voice mail�... -
Page 5: Product Overview
PRODUCT OVERVIEW Mountain Series Service Manual THE FOUR CATEGORIES OF THE MOUNTAIN SERIES OVENS -W MODELS Wood-only models use wood as the only heat source� See the Installation and Operation Manual for specific information regarding the burning of wood� RFG MODELS These models have a Radiant flame burner located at the rear or, optionally, on either side of the oven�... -
Page 6: Venting
OVEN VENTING The Wood Stone Mountain Series ovens may be installed under a hood, or direct connected� All ductwork must be constructed and installed to the specifications of a grease duct� If a hood is used it must be a Type 1 hood (grease-rated)� A power ventilator listed for restaurant exhaust applications must be provided�... -
Page 7: Wood-Fired Oven Overview
WOOD-FIRED OVEN OVERVIEW Mountain Series Service Manual WOOD-FIRED OVENS TEMPERATURE READOUT The only electrical components on the wood-fired ovens are in the Temperature Readout Display at the front of the oven� Be aware that these displays are often relocated to an area beside the oven to accomodate kitchen design requirements� The assembly is made up of three components: 1. -
Page 8: Wood Oven Troubleshooting
Some cracking of the oven refractory, especially hairline cracking, is completely normal and in no way degrades the performance of the oven� Any abnormal or extreme cracking (larger than 1/8 inch) should be brought to the attention of the Wood Stone Service Department�... -
Page 9: Electrical Diagram (Wood)
ELECTRICAL DIAGRAM (WOOD) Mountain Series Service Manual Solid Fuel Only 120 VAC Thermocouple Readout 12 VAC Yellow + Red - XFMR 110-120 VAC Type K 50-60Hz Thermocouple wired by others Probe DIAG #: WD051 Rev. 0 Bellingham, WA +1(360)650-1111 www.woodstone-corp.com... -
Page 10: Gas Oven Overview
GAS OVEN OVERVIEW Mountain Series Service Manual GAS OVENS - OPERATIONAL OVERVIEW AND COMPONENTS W-IR IR burner only Radiant burner only RFG-IR IR and Radiant burner WOOD STONE CORPORATION 800.988.8103 info@woodstone-corp.com M0014.09 APRIL 2019 TOLL FREE E-MAIL 360.650.1111 woodstone-corp.com 1801 W. Bakerview Rd. -
Page 11: Operational Overview (Gas)
Service Manual GAS-FIRED OVENS OPERATIONAL OVERVIEW Wood Stone manufactures three different model types of gas-fired ovens� RFG MODELS RFG models have a Radiant flame burner located at the rear or either side of the oven� This burner is designed to give the appearance of a wood-fire type flame�... -
Page 12: W-Ir
OPERATION SEQUENCE: W-IR Mountain Series Service Manual BURNER OPERATION SEQUENCE W-IR OVEN - TYPE 2 CONTROLLER Power on� Controller reads floor temperature from Thermocouple� Floor temperature above Floor temperature below Hearth Set Hearth Set Point– Point – Controller sends power to No action�... -
Page 13: Rfg
OPERATION SEQUENCE: RFG Mountain Series Service Manual BURNER OPERATION SEQUENCE RFG OVEN - ALL CONTROLLERS Power on� SV-2 valve powers Igniter and opens pilot valve� Pilot does not light– SV-2 times out�* Pilot lights� Touch-style Controllers will flash “chec”� SV-2 senses Pilot Flame, turns Igniter off–... -
Page 14: Rfg-Ir
OPERATION SEQUENCE: RFG-IR Mountain Series Service Manual BURNER OPERATION SEQUENCE RFG-IR-(W) OVEN - TYPE 2 CONTROLLER Power on� SV-2 valve powers Igniter and opens Pilot valve to Radiant (rear) burner� Pilot lights� Pilot does not light, SV-2 times out*� SV-2 senses Pilot Flame –... -
Page 15: Legacy
OPERATION SEQUENCE: LEGACY Mountain Series Service Manual BURNER OPERATION SEQUENCES RFG-IR OVEN - TYPE I CONTROLLER Power On SV-2 Powers Igniter– Temperature Controller Pilot Valve opens� and display� Floor Temperature Pilot lights� Pilot does not light– above Hearth Set SV-2 times out�* Point–... -
Page 16: Gas Oven Components
Mountain Series Service Manual GAS OVEN COMPONENTS The following is a list of the key electrical and gas components found in Wood Stone gas-fired ovens, accompanied by information about the individual parts� 24 VOLT TRANSFORMERS This is the power supply for all of the electrical components on the oven� Here are two... -
Page 17: Oven Controllers
FLOOR TEMP� The only difference is that the unit that reads “NCC” has programmable hysteresis parameters and the Wood Stone version has these locked� It is critical that the factory settings on the NCC model are not altered�... - Page 18 March of 2000, and on previously installed ovens that have been converted from wood- fired only (-W) to RFG gas by Wood Stone� Ovens built after March of 2000 use the Type 2 or Type 4 Controller� The function of this Controller is to turn the Radiant burner on or off, and to display the current floor temperature�...
- Page 19 OVEN CONTROLLERS Mountain Series Service Manual 8-FOOT RFG CONTROLLER This Controller differs slightly from the standard RFG Controller because this oven is equipped with three Radiant burners� It utilizes a larger box than the Controller described above� It does not have a power ON indicator light� The three lights across the top are indicators for each of the three burners�...
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Page 20: Gas System Components
This is what the operator uses to control the flame height of the Radiant burner only� It is not a shutoff Valve� Do not remove, or replace this Valve with anything but a Valve supplied by Wood Stone� Replacing this Valve with any part not supplied by Wood Stone could create a DANGEROUS operating condition�... - Page 21 GAS SYSTEM COMPONENTS Mountain Series Service Manual INFRARED BURNER ASSEMBLY This is the burner located beneath the floor of the oven� The tubes on the outside of the burner are used to supply air to the burner� You will not see flame in these tubes� DO NOT...
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Page 22: Gas Oven Troubleshooting
GAS OVEN TROUBLESHOOTING Mountain Series Service Manual GAS OVEN TROUBLESHOOTING CONTROLLERS The Type 1 Controller is most easily identified by a large red button and a large green button on the face of the stainless steel Controller housing� In the center there will be a gray touch-pad that says “Temperature Controller”� You will also see either two or three indicator lights across the top�... - Page 23 GAS OVEN TROUBLESHOOTING Mountain Series Service Manual TYPE 1 CONTROLLER TROUBLESHOOTING Symptom Probable Cause and/or Solution Oven does not turn on� Display is blank and 1. Is incoming power turned off at breaker or wall switch etc? green power light is off� (Also see below) 2.
- Page 24 IR back onto the wiring� This needs to be corrected� 2. Operational Problem� Call Wood Stone� Product is cooking inconsistently, under Hysteresis settings on the Controller have been changed from the factory and/or over�...
- Page 25 GAS OVEN TROUBLESHOOTING Mountain Series Service Manual TYPE 2 (TOUCHPAD CONTROLLERS) TROUBLESHOOTING Type 2 Controllers have been in use as gas oven Controllers since mid-2000� There are no push button switches on the outside of this Controller� All versions of this Controller use a touch-pad (overlay) on the face of the Controller to operate the unit� It has power and flame indicator lights and a hearth temperature display�...
- Page 26 The IR burner is not running� flame� The radiant flame by itself can easily drive the oven temperature well above the Hearth Set Point if it is turned up too high� Call Wood Stone for operational assistance� RFG-IR OVEN: Controller is on, but...
- Page 27 Operational issue� Temperature in the oven is controlled using the Flame Height undercooking� Control Knob on the front of the oven� Flame height should be adjusted accordingly� Call Wood Stone for assistance� Installation and Operation Manuals can be found online at: www�woodstone-corp�com Display reads “LO”�...
- Page 28 These Controllers are found on ovens that are equipped with a Radiant burner only� This includes ovens that have been converted by Wood Stone from wood burning to gas� RFG ovens built after March 2000 utilize the Type 2 or Type 4 Controllers discussed previously in this manual�...
- Page 29 Pilot/Igniter Flame Rod OPERATIONAL OVERVIEW Flame Jet Wood Stone gas ovens utilize “smart” type Gas Valves� With these valves the ignition module circuitry Burner is incorporated into the valve itself—there is no Housing separate ignition module� Burner ignition is achieved via a hot surface (glow coil) to pilot ignition system�...
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Page 30: Burner Troubleshooting
BURNER TROUBLESHOOTING Mountain Series Service Manual Symptom Probable Cause and/or Solution Burner does not light, oven 1. Wire connections at the SV-2 Gas Valve are loose or unplugged. Verify that the Controller is on, and switch on MOLEX connectors for the SV-2 wire harness and the Igniter wires are securely the Gas Valve (SV-2) is in the ON plugged into the Gas Valve�... - Page 31 BURNER TROUBLESHOOTING Mountain Series Service Manual Symptom Probable Cause and/or Solution Burner does not light, there is a 1. Gas supply to the oven has been turned off. Check manual shutoffs, fire visible glow on one side of the suppression system resets etc�...
- Page 32 BURNER TROUBLESHOOTING Mountain Series Service Manual Symptom Probable Cause and/or Solution Burner goes out 1. Debris in the burner causing the pilot to lose rectification� Remove the burner and clean, intermittently� see the Common Repair Procedures section of this manual� Make sure the Igniter is not damaged and that the Flame Rod is clean�...
- Page 33 BURNER TROUBLESHOOTING Mountain Series Service Manual Symptom Probable Cause and/or Solution Burner doesn’t light or goes 1. Loose Pilot Tube—tighten and replace Igniter� out, and the Igniter wires are 2. Inadequate venting or negative air—see oven installation instructions� burned� 1. Check that throttle rod is not binding�...
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Page 34: Ir Burner Troubleshooting
Service Manual Many Wood Stone ovens are equipped with an Underfloor Infrared (IR) burner� This is not the primary heat source for the oven. The IR burner is designed to assist the Radiant burner or the wood fire during start-up and during times of heavy usage� It is thermostatically controlled�... - Page 35 Heat damage to IR burner valve, Remove IR burner and inspect for debris on burner� If there is a crack in oven burner does not light� deck above burner, patch from below using approved grout� Contact Wood Stone Service Department� W-IR, RFG-IR-W MODELS 1.
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Page 36: Common Repair Procedures
CHECKING BURNER GAS PRESSURES: Proper gas pressure settings and an adequate incoming gas supply are critically important for any gas fired Wood Stone oven to operate correctly� All burner gas pressure measurements should be taken at the port on the respective burner manifold� When taking a measurement of Radiant burner manifold pressure, make sure that the throttle valve is fully open (maximum flame height)�... - Page 37 COMMON REPAIR PROCEDURES Mountain Series Service Manual PILOT/IGNITER REPLACEMENT – INFRARED BURNER To replace the Pilot/Igniter assembly on an IR burner, first turn the oven off� Then remove the Pilot Tube from the Igniter–be careful not to lose the Pilot Orifice� Next remove the screw holding the Igniter in place� Slide the Igniter out of the burner� Install the new Igniter�...
- Page 38 COMMON REPAIR PROCEDURES Mountain Series Service Manual 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 Thermocouple wires are connected directly to the temperature readout at the front of the oven�...
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Page 39: Gas Component Diagrams
GAS COMPONENT DIAGRAMS Mountain Series Service Manual PIPING AND RADIANT BURNER OLD STYLE PIPING LAYOUT Burner Jets w/Flame Pilot/Igniter Retention Springs Thermocouple SV-2 Valve Throttle Valve Control Rod w/Cotter Key Pilot Tube Radiant Burner Assembly 3/4" Gas Connection Pressure Tap... - Page 40 GAS COMPONENT DIAGRAMS Mountain Series Service Manual RFG MODELS PIPING LAYOUT Note: Actual layouts may vary depending on the model and specific configuration of the unit� Throttle valve To Radiant burner Throttle Rod Extension SV-2 Gas Valve Flame Height Control Knob...
- Page 41 GAS COMPONENT DIAGRAMS Mountain Series Service Manual RFG-IR MODELS PIPING LAYOUT Note: Actual layouts may vary depending on the model and specific configuration of the unit� Model shown: MS-5-RFG-IR Burner jets w/Flame Retention Springs Pilot/Igniter Radiant Burner Assembly Flexible Gas Pipe to...
- Page 42 GAS COMPONENT DIAGRAMS Mountain Series Service Manual INFRARED BURNER Burner Tiles Venturi Tubes Burner Jets Pressure Tap Connection to Flex Piping SV-1 Gas Valve Pilot/Igniter Pilot Tubing WOOD STONE CORPORATION 800.988.8103 info@woodstone-corp.com M0014.09 APRIL 2019 TOLL FREE E-MAIL 360.650.1111 woodstone-corp.com 1801 W.
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Page 43: Electrical Diagrams
ELECTRICAL DIAGRAMS Mountain Series Service Manual 100/120 VAC W-IR, - TYPE 2 CONTROLLER IR Only (W-IR) Temperature Controller Control Panel Type 2 Thermo TB4-R Couple TB4-Y Yellow TB3-2 TB1-2 5 orange TB3-5 TB1-6 pink TB4-P Yellow TB1-4 white TB4-8 Brown... - Page 44 ELECTRICAL DIAGRAMS Mountain Series Service Manual 100-120 VAC RFG OVENS - TYPE 2 CONTROLLER Single RFG Temperature Controller Control Panel Type 2 Thermo TB4-R Couple TB4-Y Yellow TB3-2 TB1-2 5 orange TB3-5 TB1-6 pink TB4-P TB1-4 white TB4-8 4 brown...
- Page 45 ELECTRICAL DIAGRAMS Mountain Series Service Manual 220-240 VAC RFG OVENS - TYPE 2 CONTROLLER EXPORT MODELS ...
- Page 46 ELECTRICAL DIAGRAMS Mountain Series Service Manual RFG OVEN - TYPE 4 CONTROLLER WOOD STONE CORPORATION 800.988.8103 info@woodstone-corp.com M0014.09 APRIL 2019 TOLL FREE E-MAIL 360.650.1111 woodstone-corp.com 1801 W. Bakerview Rd. An ongoing program of product improvement may 360.650.1166 Bellingham, WA 98226 USA...
- Page 47 ELECTRICAL DIAGRAMS Mountain Series Service Manual RFG CONTROLLER - NON TOUCHPAD STYLE (USED ON PRE MARCH 2000 RFG OVENS AND SOME FIELD CONVERSIONS) WOOD STONE CORPORATION 800.988.8103 info@woodstone-corp.com M0014.09 APRIL 2019 TOLL FREE E-MAIL 360.650.1111 woodstone-corp.com 1801 W. Bakerview Rd.
- Page 48 ELECTRICAL DIAGRAMS Mountain Series Service Manual W-IR OVEN - TYPE 1 CONTROLLER WOOD STONE CORPORATION 800.988.8103 info@woodstone-corp.com M0014.09 APRIL 2019 TOLL FREE E-MAIL 360.650.1111 woodstone-corp.com 1801 W. Bakerview Rd. An ongoing program of product improvement may 360.650.1166 Bellingham, WA 98226 USA...
- Page 49 ELECTRICAL DIAGRAMS Mountain Series Service Manual RFG-IR OVEN TYPE 1 CONTROLLER WOOD STONE CORPORATION 800.988.8103 info@woodstone-corp.com M0014.09 APRIL 2019 TOLL FREE E-MAIL 360.650.1111 woodstone-corp.com 1801 W. Bakerview Rd. An ongoing program of product improvement may 360.650.1166 Bellingham, WA 98226 USA...
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Page 50: Parts List
PARTS LIST Mountain Series Service Manual PARTS LIST All information subject to change� Please contact Wood Stone to confirm part numbers and pricing� WOOD OVEN REPLACEMENT PARTS Description Part Number Complete Readout Assembly 120 VAC / Fahrenheit 002-900 Complete Readout Assembly 120 VAC / Celsius... - Page 51 PARTS LIST Mountain Series Service Manual GAS OVEN REPLACEMENT PARTS (CONTINUED) TYPE 1 CONTROLLER PARTS Description Part Number Fuse - 5 A for Type 1 Controller RP-7000-0711 Relay - for Type 1 Controller RP-7000-0721 ON Switch (green) for Type 1 Controller...
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Page 52: Gas Specifications
GAS CONNECTION Mountain Series ovens are equipped with a 3/4" NPT gas connection located at the rear left of the oven� Have a licensed gas installer provide the hook-up and test all fittings and pipe connections for leaks� Use approved gas leak detectors (soap solutions or equivalent) over and around the fittings and pipe connections�... - Page 53 227,000 142,000 85,000 If you are converting a Wood Stone oven from Propane to Natural Gas, or Natural Gas to Propane, CONTACT THE WOOD STONE SERVICE DEPARTMENT TO OBTAIN THE NECESSARY PARTS TO CARRY OUT THIS PROCEDURE! This procedure entails changing the Burner Jets, Pilot Orifices and Gas Valve Regulator Springs, and adjusting the Burner Manifold Pressures as specified for the new gas type�...
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Page 54: Electrical Specifications
BTU requirements of the oven� Burner gas pressures are preset at the factory� The electrical connection to the oven should be made by a licensed electrician� A Wood Stone representative may be available to visit the site to verify that the oven is functioning correctly and address any questions the customer may have�... -
Page 55: Technical Verification Checklist
The Initial Oven Start-Up (break in) procedure as found in the manual. (It is not necessary for the technician to be present for this procedure.) The Warranty and what is and is not covered. Call Wood Stone if you have any questions. Sales Order # FOR OFFICE USE ONLY Fax this form to Wood Stone within 24 hours of service to 360.650.1166... -
Page 56: Limited Warranty
LIMITATIONS OF LIABILITY In the event of warranty claim or otherwise, the sole obligation of Wood Stone shall be the repair and/or replacement, at the option of Wood Stone, of the appliance or component or part thereof� Such repair or replacement shall be at the expense of Wood Stone with the exception of travel over 100 miles or two hours, overtime, and holiday charges which shall be at the expense of the purchaser�...
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