Blodgett KLT-12G User manual

IMPORTANT NOTES FOR INSTALLATION AND OPERATION

KLT-12G

GAS FIRED FLOOR MODEL TILTING KETTLE

INSTALLATION –OPERATION –MAINTENANCE

BLODGETT OVEN COMPANY

www.blodgett.com

44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone: (802) 658-6600 Fax: (802) 864-0183

S00073 Rev A (5/04)

It is recommended that this manual be read thoroughly and that all instructions be followed

carefully.

This is the safety alert symbol. It is used to alert you to potential personal

injury hazards. Obey all safety messages that follow this symbol to avoid

possible injury or death.

FOR YOUR SAFETY: Do not store or use gasoline or other flammable

vapors or liquids in the vicinity of this or any other appliance.

WARNING: Improper installation, operation, adjustment, alteration, service

or maintenance can cause property damage, injury or death. Read the

installation, operating and maintenance instructions thoroughly before

installing, operating or servicing this equipment.

PURCHASER: Instructions to be followed in the event that the operator of this

appliance smells gas must be posted in a prominent location. This information shall be

obtained by consulting the local gas supplier.

Do not obstruct the flow of combustion and ventilation air.

Keep the appliance area free and clear from combustibles.

Adequate clearances must be maintained for servicing and proper operation.

Do not attempt to operate this unit in the event of a power failure.

Intended for commercial use only. Not for household use.

This manual should be retained for future reference.

TABLE OF CONTENTS

DESCRIPTION PAGE

1.0 IMPORTANT NOTES FOR INSTALLATION AND OPERATION ..........................2

2.0 SERVICE CONNECTIONS .................................................................................4

3.0 INTRODUCTION .................................................................................................5

4.0 INSTALLATION INSTRUCTIONS ........................................................................6

5.0 OPERATING INSTRUCTIONS ............................................................................9

6.0 PERIODIC MAINTENANCE ..............................................................................11

7.0 TROUBLESHOOTING ......................................................................................14

APPENDIX A Material Safety Data Sheet .....................................................................15

2.0 SERVICE CONNECTIONS

3 [76]

4.75 [121]

23.75 [603]

25.388 [645]

17.25 [438]

5.5 [140]

11.25 [286]

15 [381]

7.75 [197]

MIN.

6 [152]

12.50 [317]

POUR PATH

6 [152]

23.88 [607]

32.88 [835]

55.75 [1416]

30 [762]

Ø16.75 [425]

I.D.

Ø20 [508]

15.88 [403]

FLANGED FOOT DETAIL

7/16" [11mm] HOLES

ON 3 [76] B.C.

EQUALLY SPACED

DIMENSIONS ARE IN INCHES [MM]

SERVICE CONNECTIONSMODEL

KLT-12G 43,000

BTU/HR. kW/HR.

12.6

Unless otherwise specified, Field Wire Electrical Connection to be 120

Volts, 60 Hz. single phase with grounding wire. Unit furnished with 6'

cord and 3 prong plug. Total max. amps 2.0.

GAS CONNECTION: Supply gas through 3/4" pipe.

NATURAL 6" - 14" W.C. (152mm - 355mm W.C.)

PROPANE 12" - 14" W.C. (305mm - 355mm W.C.)

Contact manufacturer for installation over 2,000 ft. elevation.

3.0 INTRODUCTION

DESCRIPTION

Model KLT-12G (12 gallon capacity) gas fired, self-contained, tilting kettle. The kettle has a jacket

of double-wall construction forming a sealed reservoir around the lower two-thirds of the kettle.

The reservoir is charged with distilled water. The kettle is equipped with a “clean lock” to hold

kettle in cooking position or tilted 105 degrees for ease of cleaning. The kettle is also equipped

with automatic ignition, low water cut off and tilt switch, which, when activated, shuts down the

burner.

BASIC FUNCTION

The kettle operates by generating steam in the kettle reservoir. The sequence of operation is as

follows:

1. Operator turns the power switch to the on position and sets the temperature control dial to the

desired setting.

2. The red light comes on indicating the kettle is heating. The green “IGNITION” light comes on

indicating that the ignition and burner are active.

3. Once the kettle reaches the set temperature, the red “TEMPERATURE” light and the green

“IGNITION” light extinguish.

4. All kettles are supplied with sufficient water in the jacket. If for any reason the water level falls

below the required amount to operate the kettle, the burner shuts down and the amber light

comes on. See Adding Water in Service section.

5. The sight glass indicates the water level within the kettle jacket.

6. The relief valve is a safety feature which prevents the internal kettle pressure from exceeding

50 PSI. It should never be tampered with.

4.0 INSTALLATION INSTRUCTIONS

GENERAL

Gas installation to conform to local codes or in absence of local codes to the National Fuel Gas

Code - ANSI Z223.1 - latest edition. In Canada, installation to be according to CAN/CGA- B149.1

(NAT) or CAN/CGA-B149.2 (LP) installation codes as applicable.

1. The appliance and its individual shut-off valve must be disconnected from the gas supply piping

system during any pressure testing of that system at pressures greater than ½ psig (3.45 Kpa).

2. The appliance must be isolated from the gas supply piping system by closing its individual

manual shut off valve during any pressure testing of the gas supply piping system at test

pressures equal to or less than ½ psig (3.45 Kpa).

The installer must provide electrical grounding according to local codes, or in the absence of local

codes, with the National Electrical Code, ANSI/NFPA 70 - latest edition. In Canada installation

must be according to the C.S.A. C22.2 Canadian Electrical Code.

The electrical wiring diagram is located inside the right hand console of the appliance.

If applicable, the vent line from the gas appliance pressure regulator shall be installed to the

outdoors in accordance with the local codes or, in the absence of local codes, with the National

Fuel Gas Code, ANSI Z223.1, Natural Gas Installation Code, CAN/CGA-B149.1, or the Propane

Installation Code as applicable.

WARNING

ELECTRICAL GROUNDING INSTRUCTIONS

THIS APPLIANCE IS EQUIPPED WITH A THREE-PRONG (GROUNDING) PLUG FOR YOUR

PROTECTION AGAINST SHOCK HAZARD AND SHOULD BE PLUGGED DIRECTLY INTO A

PROPERLY GROUNDED THREE-PRONG RECEPTACLE. DO NOT CUT OR REMOVE THE

GROUNDING PRONG FROM THIS PLUG. (120 VOLT UNITS ONLY).

GAS CONNECTION

1. The Serial and Rating Plate on the unit indicates the type of gas your unit is equipped to burn.

DO NOT connect to any other gas type.

2. A 3/4" NPT line is provided at rear for the connection. The unit is equipped with an internal

pressure regulator which is set at 4" W.C. manifold pressure for Natural Gas and 10" W.C. for

Propane Gas. Use 1/8" pipe tap on the union elbow assembly located in the console for

checking pressure.

An adequate gas supply is imperative. Undersized or low pressure lines will restrict the volume of

gas required for satisfactory performance. A steady supply pressure, minimum 6" W.C. for natural

gas and minimum 12" W.C. for propane gas is recommended. With all units operating

simultaneously, the manifold pressure on all units should not show any appreciable drop.

Fluctuations of more than 25% on natural gas and 10% on propane gas will create problems,

affecting burner operation. Contact you gas company for correct supply line sizes.

Purge the supply line to clean out any dust, dirt or other foreign matter before connecting the line

to the unit. Use pipe joint compound which is suitable for use with L.P. on all threaded

connections.

Test pipe connections thoroughly for gas leaks.

USE SOAPY WATER ONLY FOR TESTING ON ALL GASES. NEVER USE AN OPEN FLAME TO

CHECK FOR GAS LEAKS.

ALL THE CONNECTIONS MUST BE CHECKED FOR LEAKS, AFTER THE UNIT HAS BEEN PUT IN

OPERATION.

INSTALLATION

1. Uncrate carefully. Report any hidden freight damage to the freight company immediately.

2. Ideally an exhaust system should be directly above the appliance to exhaust combustion

gases generated by the unit.

3. The appliance is intended for use on noncombustible floors. The minimum clearance from

combustible and noncombustible floor construction is 0" on right side, 0" on left side and 6"

(152 mm) from the back of the flue chimney.

4. Appliance location must allow air supply to unit and obstruction free clearance for air opening

into the combustion chamber.

5. Set the appliance in place and level using spirit level. Level left to right and front to back.

6. Mark hole locations on the floor through the anchoring holes provided in the flanged adjustable

feet.

7. Remove the appliance from installation position and drill holes in locations marked on the floor.

(See installation diagram on Page 4). Insert proper anchoring devices. (Not supplied).

8. Place appliance back in the installation position and re-level left to right and front to back.

9. Bolt and anchor appliance securely to the floor.

10. Seal bolts and flanged feet with silastic or equivalent compound.

11. Make service connections as indicated.

12. The pressure relief valve is located at the left rear of the unit. This area should be kept clear

and should not be in an area where operators will normally stand. The elbow on the relief

valve should be turned toward the floor. 3/4" diameter pipe may be used to extend to the floor,

but must not be piped directly to a drain. It must be vented to the atmosphere.

13. Check the pressure gauge on the front panel before operating. The reading should be in the

green vacuum zone (below 0 PSI). See “Re-establishing Vacuum” section under Service

Instructions.

5.0 OPERATING INSTRUCTIONS

FRONT PANEL CONTROLS:

Power Switch

This switch turns the main power to the unit on and off. It must be turned on to heat the kettle.

It should be turned off when the kettle will not be in use for long periods.

Thermostat

Selects the desired internal kettle operating temperature. It also turns on the temperature

light (red) and ignition light (green).

Temperature Pilot Light (Red)

When the kettle has reached set temperature, temperature light (red) will go off.

Ignition Pilot Light (Green)

Comes on with temperature light (red) and indicates ignition has occurred. Should it not come

on with temperature light, this would indicate failed ignition or burnt out light.

Low Water Light (Amber)

All kettles are supplied with sufficient water in the pressurized jacket. If at any time the water

level falls below that required for proper operation, the kettle will not heat and this light will

come on. See “Adding Water” section of service instructions.

Pressure Gauge

The pressure gauge indicates the internal operating pressure of the kettle.

Sight Glass

The sight glass indicates the water level within the kettle jacket.

Pressure Relief Valve

The pressure relief valve is a safety device which prevents the internal kettle pressure from

exceeding 50 psi. It should never be tampered with.

TILTING INSTRUCTIONS

Your kettle has the standard “Clean Lock” feature and may not be tilted without disengaging the tilt

knob located on the console at the top left. This feature locks the kettle in the upright position and

also allows the operator to lock the kettle at 105 degrees for ease of cleaning. Follow these steps

to tilt kettle:

1. Pull out the tilt knob at the top left of console.

2. Using kettle tilt handle, pull kettle forward to desired angle of pour or until kettle locks at 105

degrees. The tilt knob can be released after the kettle has been tilted approximately 10

degrees.

3. Kettle will lock in position at 105 degrees and may be tilted further by pulling the tilt lock knob a

second time allowing the kettle to tilt the full distance.

4. To return the kettle to the upright position, pull out the tilt lock knob and tilt the kettle upward

until it locks in the upright position. The kettle should not move in either direction once in the

upright position.

LIGHTING

1. Ensure the kettle is in the upright position.

2. Open the manual gas shut off valve located at the back of the right-hand console when facing

the front of the unit.

3. Set the thermostat dial in off position. Turn the power switch on.

4. Set the thermostat to desired setting. If ignition light does not stay on, turn off thermostat. Wait

5 minutes and repeat the lighting procedure.

SHUT DOWN

1. Turn thermostat dial to “OFF” position.

2. Turn power switch to “OFF” position.

3. Close manual gas shut-off valve.

NOTICE

IF THE GAS SUPPLY IS INTERRUPTED DURING OPERATION, A FIVE MINUTE PERIOD OF

COMPLETE SHUT OFF OF GAS SUPPLY IS REQUIRED BEFORE RESTARTING.

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