hestan KRT365 User manual

EN
©2018 Hestan Commercial Corporation
1
EN
GAS CONVERSION KIT
Installation Instructions
Range/Rangetop
FOR SERVICE PERSONNEL ONLY
IMPORTANT - READ ALL INSTRUCTIONS BEFORE YOU BEGIN
THE INSTRUCTIONS HEREIN MUST ONLY BE PERFORMED BY A QUALIFIED SERVICE
TECHNICIAN. THE RANGE MUST BE COMPLETELY COOL AND THE GAS SOURCE MUST
BE SHUT OFF OR REMOVED BEFORE ATTEMPTING GAS CONVERSION.
Some parts inside your range have sharp edges. Care must be taken when handling the various
components to avoid personal injury. Wear gloves when handling.
TOOLS REQUIRED:
Work gloves
Safety glasses
Phillips screwdriver
Flat-blade screwdriver
Plastic or non-marring pry tool
Pipe wrench or large slip-joint pliers
Socket wrench with 8mm socket
Open end or combination wrenches (8, 10, 12, 14mm)
IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED
EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING
PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH.
Flammable Gas - disconnect all propane or natural gas supplies to this
unit before servicing.
Electrical Parts & Components – disconnect all power supplies before
servicing.
DANGER
If you smell gas:
1. Shut off gas to the appliance.
2. Extinguish any open flame.
3. Open windows and doors in the room.
4. If odor continues, keep away from the
appliance and immediately call your gas
supplier or your fire department.
DANGER
1. Do not store or use gasoline or
other flammable liquids or vapors
in the vicinity of this or any other
appliance.
2. An LP cylinder not connected for
use shall not be stored in the vicinity
of this or any other appliance.
READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE USING YOUR
RANGE TO REDUCE THE RISK OF FIRE, BURN HAZARD, OR OTHER INJURY.
KEEP THIS MANUAL FOR FUTURE REFERENCE.

©2018 Hestan Commercial Corporation
2
EN
DISASSEMBLY (KRT365 shown)
2. Insert a plastic or other non-marring tool to pry into the seam between the control panel and the
body in the approximate location shown. Apply light pressure to release the bottom edge of the
control panel from the ball retaining studs hidden inside. Repeat for other side. Swing out the
bottom edge to remove the panel, and set aside.
1. Remove the knobs, grates, burner caps and burner rings as shown below.
INSERT TOOL HERE

©2018 Hestan Commercial Corporation
3
EN
DISASSEMBLY (continued)
4. Slide the bullnose trim assembly forward as shown and set aside.
3. Remove the screws shown below to detach the bullnose trim assembly.
REMOVE
2 SCREWS
LEFT SIDE RIGHT SIDE
REMOVE
2 SCREWS
SLIDE FORWARD
5. Remove all screws around each burner
base which hold the burner bowl in
place.
REMOVE ALL SCREWS

©2018 Hestan Commercial Corporation
4
EN
7. Remove each LED board from unit as shown below. You do not have to disconnect each wire
connector - they can be left hanging in place.
DISASSEMBLY (continued)
6. Remove the burner bowl as shown below.
NOTE: CENTER BURNER IGNITER
WILL REMAIN ATTACHED TO BURNER
BOWL WHEN RAISED. DISCONNECT
THIS WIRE.
TILT UP BURNER BOWLABOUT
30 DEG. TO DETACH FROM REAR
ISLAND TRIM / RISER.
REMOVE LED BOARDS TO EXPOSE
VALVE ORIFICE ACCESS HOLES

©2018 Hestan Commercial Corporation
5
EN
ORIFICE LOCATIONS
8. Shown below is a typical burner layout. The dual-flow rear burners have 15500 BTU output, while
the dual-flow front burners are 23000 BTUs. The center single-flow burner (if equipped) has a 30000
BTU output (or 23000 on LP gas).
TYPICAL BURNER LAYOUT
(KRT365 SHOWN)
15.5k 15.5k
23k 23k
30k
The following pages describe how to replace the orifices in each burner type and each valve type. Do
one item at a time so as not to mix up orifices. All orifices must be fully seated and hand-tight to
reduce the chances of a gas leak. DO NOT USE any sealant, pipe dope, teflon tape, or anything else
on the orifice threads.
ABOUT HOSES: If you need to disconnect any hoses during this process, use caution to avoid
unnecessarily bending, twisting, or kinking any hoses. Hoses are stainless steel flex type which can
become brittle with age and can crack if handled roughly. Disconnect the fitting carefully where
necessary. You will perform a complete gas leakage test at the end of this procedure.

©2018 Hestan Commercial Corporation
6
EN
ORIFICE CHARTS
9. USE THIS CHART AS A GUIDE FOR REPLACING THE ORIFICES. SEE FOLLOWING PAGES FOR
REPLACEMENT INSTRUCTIONS FOR BURNERS AND VALVES.
NG LP NG LP NG LP NG LP NG LP
Front 23000 23000 046 055 073 078 065 073 080 087
Rear 15500 15500 052 058 073 078 065 073 080 087
Front 23000 23000 047 055 073 078 065 073 080 087
Rear 15500 15500 053 060 073 078 065 073 080 087
Front 23000 23000 049 056 074 079 065 073 080 087
Rear 15500 15500 054 062 074 079 065 073 080 087
H1
2000 - 5999 ft (600 - 1800m)
H2
6000 - 10000 ft (1800 - 3050m)
Sea Level - 1999 ft (600m)
BURNER
LOCATION
ALTITUDE
Dual Flow Burner
Main Orifice
023690-xxx
Dual Flow VALVE
Simmer Orifice
023701-xxx
Dual Flow Burner
Simmer Orifice
023698-xxx
Dual Flow VALVE
Low Orifice
023701-xxx
BURNER OUTPUT
(BTU/hr)

©2018 Hestan Commercial Corporation
7
EN
CHANGING BURNER ORIFICES
SIMMER ORIFICE
023698-XXX
MAIN ORIFICE
023690-XXX
.177 inch [4.5mm]
VENTURI /
AIR SHUTTER
THIS PORT TO
BE FULLY OPEN
DUAL-FLOW
BURNER BASE
ASSEMBLY NOTE: ALIGN VENTURI / SHUTTER WITH 2nd GROOVE.
DIMENSION SHOWN FOR REFERENCE ONLY.
LOCK
SCREW
10. The main BURNER orifice can be replaced without disconnecting the hose. The simmer orifice hose
must be disconnected to access the orifice inside. See the chart on pg. 6 to select the appropriate orifice for your gas type / altitude. The part numbers and identification (color / stamp) for the orifice are given in the tables above.
The detail view shows the appropriate venturi / air-shutter dimension. The dimension is shown for
reference only in case the lock screw was loosened, or the flame characteristics are not correct and need adjustment. If adjustment is needed, loosen the lock screw and adjust the air shutter in or out in very tiny increments, lock down the screw, replace all the components and check the flame again.

©2018 Hestan Commercial Corporation
8
EN
MAIN ORIFICE
(SEE P/N ABOVE)
AIR SHUTTER
SINGLE-FLOW
BURNER BASE
ASSEMBLY
X
LOCK
SCREW
ORIFICE
HOLDER
CHANGING BURNER ORIFICES (continued)
11. The main BURNER orifice can be replaced without disconnecting the hose, however care must be
taken when handling to avoid bending or kinking the hose. Loosen the lock screw to extract the
orifice holder from the main body. See the chart on pg. 6 to select the appropriate orifice size for
your gas type / altitude. The part number and identification for the orifice is given in the table above.
When reinstalling the orifice holder in the body, be sure to set the correct air shutter distance
(Dimension X), then tighten the lock screw. If later on, the flame characteristics require adjustment,
loosen the lock screw and adjust the air shutter in or out in very tiny increments, lock down the
screw, replace all the components and check the flame again.

©2018 Hestan Commercial Corporation
9
EN
12. Remove the valve orifices via the access holes in the bracket as shown below.
ACCESSING VALVE ORIFICES
SINGLE-FLOW
VALVE DUAL-FLOW VALVE
VALVE LOW
ORIFICE
VALVE
SIMMER
ORIFICE
VALVE LOW
ORIFICE

©2018 Hestan Commercial Corporation
10
EN
DUAL-FLOW
VALVE
NOTE: REMOVE AND REPLACE ONE ORIFICE
AT ATIME. MAKE SURE ORIFICE IS FULLY
TIGHTENED ON INSTALLATION.
VALVE LOW
ORIFICE
023701-XXX
VALVE SIMMER
ORIFICE
023701-XXX
CHANGING VALVE ORIFICES
13. Replace the VALVE orifices as shown below. See the chart on pg. 6 to select the appropriate orifice
size for your gas type / altitude. The part number and identification (color code) for the orifice is
given in the table below.

©2018 Hestan Commercial Corporation
11
EN
SINGLE-FLOW
VALVE
NOTE: REMOVE AND REPLACE ONE ORIFICE
AT ATIME. MAKE SURE ORIFICE IS FULLY
TIGHTENED ON INSTALLATION.
VALVE LOW
ORIFICE
023701-XXX
CHANGING VALVE ORIFICES (continued)
14. Replace the VALVE orifice as shown below. See the chart on pg. 6 to select the appropriate orifice
size for your gas type / altitude. The part number and identification (color code) for the orifice is
given in the table below.

©2018 Hestan Commercial Corporation
12
EN
CONVERTING THE REGULATOR
15. With access to the rear of the appliance, you can convert the gas type of the regulator by
following the instructions below (conversion from NG to LP gas is shown). This can be done
without removing the regulator.

©2018 Hestan Commercial Corporation
13
EN
LEAK TESTING & ADJUSTMENT
16. At this point, all conversion components should be installed and any hoses removed previously
have been returned and tightened. Before replacing the various sheetmetal parts, a complete leak
check must be performed on all gas-carrying components. Begin by temporarily supporting the
center burner (if equipped) with a small block of wood as shown below.
Also return all the burner rings and caps to the other burners (see image on next page).
GAS SUPPLY
The local gas authority or supplier should be consulted at the installation planning stage in order to
establish the availability of an adequate supply of gas (NG or LP). If it is a new installation, have the
gas authorities or supplier check the meter size and piping to assure that the unit is supplied with the
necessary amount of gas supply and pressure to operate the unit(s).
Gas connections should be made by a qualified plumber, or your professional appliance service
technician.
All fixed (non-mobile) appliances must be fitted with an accessible upstream gas shutoff valve as a means
of isolating the appliance for emergency shut off and for servicing. This valve was described in the
appliance Installation Manual.
Make certain new piping and connections have been made in a clean manner and have been purged so
that piping compound, chips, etc. will not clog regulators, valves, orifices, or burners.
IF THE INFORMATION BELOW IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT
CAUSING PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH.
LEAK TESTING
GENERAL
A complete gas tightness check must be performed of all gas-carrying components due to possible
movement during installation, or excessive pressure unknowingly being applied to parts of the unit.
BEFORE TESTING
• DO NOT SMOKE while leak testing.
• Never leak test with an open flame.
• Make a soap solution of one part liquid detergent and one part water for leak testing purposes.
• Apply the solution to the gas fittings by using a spray bottle, a brush or small sponge.

©2018 Hestan Commercial Corporation
14
EN
LEAK TESTING & ADJUSTMENT (continued)
• For LP units, always check with a full LP cylinder.
• Check for adequate inlet gas pressure - 7” w.c. for Natural gas, 11” w.c. for LP gas.
Gas pressure from the regulator must be 5” w.c. for Natural gas and 10” w.c. for LP gas.
TO TEST
• Make sure all control valves are in the “OFF” position.
• Apply the soap solution described above to all fittings, flex hoses, etc.
• Turn the gas supply on.
• CHECK ALL CONNECTIONS! Check from the supply line, up to and including the manifold pipe
assembly, regulator, etc. Check ALL the hoses from end to end. Bending of the hoses may have
resulted in small cracks in the hoses which must be found. Apply the soapy solution liberally to
detect any leaks. If hoses are cracked, you will need to replace them.
• Soap bubbles will appear where a leak is present. If a leak is present, immediately turn off gas
supply, tighten any leaking fittings, turn the gas supply back on, and recheck.
• If you cannot stop a gas leak, turn off the gas supply and call the dealer where you purchased your
appliance.
• DO NOT USE THE APPLIANCE UNTIL ALL CONNECTIONS HAVE BEEN CHECKED AND DO
NOT LEAK!
Once the leak check is done and there are no leaks, proceed to re-install all the sheetmetal parts, LED
boards, etc. that were previously removed. Don’t forget to re-connect the ignition wire for the center
burner (if equipped). Restore the electrical power to the unit. Turn the gas shut-off valve to the open
position.
NOTICE
All the control knobs must be in the OFF position to prevent unintended operation at power up.

©2018 Hestan Commercial Corporation
15
EN
LEAK TESTING & ADJUSTMENT (continued)
Return all the burner rings and caps as shown below. Ensure the sealed burner heads are properly
installed and seated on the burner base as shown below. There are notches on the burner base and
cross ring to help with alignment. The outer burner head features a long slot on the top of the head
which aligns with the spark igniter. Assembly of the single-flow burner head is similar.
Verify ignition at each burner. Igniter will make a clicking sound until the flame lights within 4
seconds, then the clicking will stop. Check flame characteristics at each burner per the descriptions
below. Flames should be stable and not dance or lift off the burner ports. Flame may need to burn
for a few minutes to purge the gas lines of impurities. These appear as intermittent orange tips or
even tiny sparks in the flame. This is normal and the flame will eventually stabilize like those shown
in the image below.
If after a few minutes the flames continue to burn mostly yellow, verify that the burner head is
properly installed on the base, then retest. Use caution when handling the burner heads. They can
be very hot.
Turn down the control knob to the simmer setting to check function.
Check each burner individually, then check they operate satisfactorily with other burners on.
Light blue flame - Natural gas normal flame
Light blue flame with yellow tips - LP gas normal flame
Yellow flame - Needs adjustment
LABEL
After conversion, the label provided in the kit must
be attached to the unit. For the range, affix in the
upper right corner as shown. For the rangetop, affix
underneath the unit next to the existing rating label.
The qualified service technician will fill in the Gas Type,
Manifold Pressure, and BTU Rates for each burner type
(per the chart on pg. 6). The technician should sign and
date the label as well.
BURNER
RING
BURNER
HEAD
BURNER
BASE
IGNITER
INNER
BURNER
HEAD
OUTER
BURNER
HEAD
BEAUTY
RING
CROSS
RING
BURNER
BASE
DUAL FLOW
BURNER
SINGLE FLOW
BURNER

Hestan Commercial Corporation
3375 E. La Palma Ave.
Anaheim, CA 92806
[phone]
RETAIN THIS MANUAL FOR FUTURE REFERENCE
©2018 Hestan Commercial Corporation P/N 023730 REV A