Garland H280 Instructions Manual

H280-series valve overheat / relocation kit

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H280-series Valve Overheat / Relocation Kit Instructions: RC Ovens

This kit is for a convection RC, 36" oven only. For a Standard 36" oven, use Kit #4522559

Installation Prerequisites:



RC Oven, Piezoelectric Ignition



U-Burner with no welded bracket

Tools Needed:



Wrenches



Small Hacksaw (for extension installation if required)



Screwdrivers (Robertson, Flat), long and short



Riveter



Electrical Tape

Parts:

Part #

1415703

Baso Safety Valve

7/16" x 10" Flex Tube

4522554

Pre-bent 3/16" Tubing

4522558

3/16" Union

076050-89

M231

1/4IN X 3/16IN CC COMP Nut

M126

1/4IN TO 3/16IN SLEEVE - Ferrule

7/16cc – 3/8 NPT Straight Connector

1095499

4522557

Valve Bracket

F60

#10 x 5/8 Sheet Metal Screw

M123

7/16IN C.C. COMPRESSION - Nut (for Flex Tube end)

M122

7/16IN C.C. BALL SLEEVE - Ferrule (for Flex Tube end)

F312

LOCK NUT-10-24 K-LOCK - Nut (for Baso Valve)

F587

BOLT # 10-24 x 2-1/4 SL - Bolt (for Baso Valve)

4522556

Redesigned Kick Panel

4522201

Welded Bracket Oven Burner

F32

#10-24 x ½ Pan HD Type F Screw (For Pilot Bracket)

070239-10

RC Pilot Natural Gas

078239-11

RC Pilot Propane

¼" Tubing Ferrule

M124

¼" Comp. Nut

M125

1415000

Robertshaw Thermocouple

¼" x 12" Flex Tube

4521446

4523367

MANUAL-HIGH HEAT KIT-RC

G7227-1

Lighting Instructions

M121

Rivet

03/09/09

Instructions for Applying Kit #4523368

Description

P/N 4523367

Quantity

Page 1

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Summary of Contents for Garland H280

Page 1 H280-series Valve Overheat / Relocation Kit Instructions: RC Ovens Instructions for Applying Kit #4523368 This kit is for a convection RC, 36” oven only. For a Standard 36” oven, use Kit #4522559 Installation Prerequisites:  RC Oven, Piezoelectric Ignition ...
Page 2 2) Remove Safety Valve  The following steps will apply for a Baso Valve: 1) Unscrew 11/16” compression nut on oven orifice fitting. 2) Unscrew 11/16” compression nut on 11/16” elbow on Valve Main Burner Gas Inlet.  Elbow itself should still be connected to Main Gas Inlet but detached from valve.
Page 3 Left: Before removal, location of screws shown by arrows 4) Remove Door Springs  Once the springs are removed, the oven door will be free to fall. Use a strong tape to keep the oven door closed for safety purposes. ...
Page 4  Pry upward with the screwdriver. While holding this position, unhook the oven door hinge link.  Use flat head screwdriver to pry spring from bell crank assembly. Remove spring. 03/09/09 Unhooked oven door hinge link Prying spring from bell crank assembly...
Page 5 Microswitch bracket held to oven frame by two screws indicated by the arrows  Follow the same steps as before, using the screwdriver to pry the bell crank assembly upwards to unhook the oven door hinge link, then pry the spring loose from the bell crank assembly. 03/09/09...
Page 6 5) Remove Orifice Bracket  After removing the igniter bracket, the orifice bracket will be held in place by a single screw directly above the orifice. Note that with the removal of the igniter bracket, the orifice bracket is held down by a single screw 03/09/09 as shown by the arrow P/N 4523367...
Page 7 6) Install Extension Fitting (if applicable)  If pilot gas tube going into the valve already has an extension piece (short piece of tubing plus 3/16” brass fitting), unscrew the shorter piece of tubing and proceed to Step 13. Otherwise, follow these steps to install the proper fitting. ...
Page 8 Right: Right side front shield, location of screws shown by arrows 8) Remove Burner  Burner is not screwed down to oven floor and can be removed by gently sliding it out.  This burner will not be reinstalled. Left: Lower oven cavity after removal of front shields...
Page 9 9) Unscrew Pilot Bracket from Oven Floor  The bracket is held down to the oven floor using two screws. This bracket will not be reinstalled. Left: Pilot assembly with bracket mounted to oven floor Right: Pilot assembly with bracket removed 10) Detach Igniter and Bracket from Pilot Assembly ...
Page 10 11) Assemble New Pilot Assembly  A colored line on the top of the pilot indicates the type of fuel used. A BLACK line is used on a natural gas pilot, whereas a RED line is used on a propane pilot. Ensure the proper pilot is used.
Page 11  Reattach original igniter Connection of taped ignition wire end to original igniter  Attach flex tube to pilot assembly  Unscrew the nut on the end of the selected pilot to release the nut, the ferrule and the orifice. Install the nut and the ferrule on one end of the flex tube. ...
Page 12  Attach new Robertshaw thermocouple to pilot assembly  Push the thermocouple all the way into its slot on the pilot. Left: Wrong installation. Thermocouple not pushed all the way through socket. Right: Correct installation. Thermocouple pushed all the way through socket. 12) Attach New Pilot Assembly to Welded Bracket on New Burner ...
Page 13 Ensure that the bracket at the tip of the burner locks onto the bracket attached to the oven floor. No screws are necessary for this procedure.  The burner may not stand up perfectly by itself. The installation of the oven orifice later will correct this problem. New burner and pilot assembly installed 14) Reinstall Both Front Shields ...
Page 14 15) Reinstall Orifice Bracket  Refer to Step 5 for orifice bracket connections  Make sure that the orifice is inserted straight into the burner and not at an angle Orifice inserted straight into burner opening 03/09/09 P/N 4523367 Page 14...
Page 15 Left: Setup screwdriver at end of spring underneath hook on bell crank assembly Right: Screwdriver pried upward, locks spring into place  Pry the bell crank assembly upward to hook on the oven door hinge link. This is the same as the uninstalling procedure in Step 4 ...
Page 16 17) Reinstall Igniter Bracket Refer to Step 3 for igniter bracket connections 18) Attach Main Burner Gas Line Flex Tubes onto Valve  Two brass fittings (Part 7, Assembly Drawing) should already be installed on the Main Burner gas inlet and outlet on the Baso valve. Otherwise, they are included in the kit separately for service personnel assembly.
Page 17 The fitting on the Main Burner Gas Inlet needs to be turned 180 from its original position, with the opening facing the right side of the oven. Loosen the nut, twist the fitting, and ensure that the nut is tightened properly once it is facing the right direction.
Page 18 20) Install New Pilot Gas Tube  If a new 3/16” fitting (Part 4, Assembly Drawing) was installed on the pilot gas tube (Part 3, Assembly Drawing), unscrew the nut on the free end of the fitting to release the nut and the ferrule.
Page 19 21) Connect Remaining Tubes and Thermocouple  The free end of each 7/16” flex tube from the valve should be fitted with a 7/16” nut (Part 10, Assembly Drawing) and 7/16” ferrule (Part 11, Assembly Drawing).  Connect the 7/16” flex tube and the thermocouple. Tighten all connections. ...
Page 20  Unscrew the two screws holding the orifice bracket and the piezoelectric lighter to the lower oven frame. Unscrew the left screw on the right side bell crank assembly bracket.  Slip the bracket (Part 8, Assembly Drawing) underneath the valve assembly such that the taller face is flush up against the lower oven frame.
Page 21 24) Attach Valve Onto Bracket  The valve is attached to the bracket using the bolt and nut provided (Part 13 and Part 12, Assembly Drawing). Insert the bolt into the hole through the valve and align it with the small hole on the back of the bracket.
Page 22 The new kick plate is designed to hook onto existing screws on the oven frame. Look for the original hooking screws used for the original kick plate. Original hooking screw on oven frame. Look for a similar screw on the other side of the oven ...
Page 23 Installation Complete Installation Complete – Kick Plate Off Installation Complete – Kick Plate On 03/09/09 P/N 4523367 Page 23...

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4523368