Vulcan-Hart ICM24 Service Manual Download Page 4

— 4 —

SECTION I
SERVICE CHECKS AND ADJUSTMENTS

WARNING:

SHUT OFF GAS BEFORE SERVICING

VENTILATION CHECKS
Insure that adequate ventilation has been provided in accordance to all codes as stated on page 3 of this manual.

The vent for this appliance should be checked for restrictions every 6 months.

GAS SUPPLY CHECKS
If the gas supply piping is to be tested at a test pressure in excess of 

1

2

 psig(3.45Kpa), the appliance and its

individual shut-off valve must be disconnected from the supply line. If the gas supply piping system is to be tested
at a pressure equal to or less than 

1

2

 psig(3.45Kpa), the individual shut-off valve must be closed during testing.

REGULATOR VENT CHECK
1.

With a screwdriver pry the plastic vent plug form the top of the regulator. (See Fig. 1)

2.

Check vent for clogging of the breather vent screen. If screen is obstructed, clear the obstruction.

STORE LINE GAS PRESSURE CHECK
1.

Turn main gas line off.

2.

Tap the store line before the pressure regulator if a gas pressure tap and plug have not been supplied.

3.

Install a single pilot valve fitting or similar device that will allow a gas pressure gauge to be connected to
the store line.

4.

Connect the gas pressure gauge to the tapped valve device.

5.

Turn the store main gas on.

6.

Turn the unit gas on.

7.

Take the store pressure reading. Store pressure should be at least 6" W.C. for natural gas and 11" W.C.
for propane gas.

8.

If store pressure is not correct advise owner that the gas line pressure must be serviced for proper gas flow
before appliance service can be performed.

9.

If store pressure is correct, continue checking by performing the appliance gas line check.

APPLIANCE GAS LINE CHECK
1.

Turn appliance gas off.

2.

Remove the burner knobs.

3.

With a phillips head screwdriver remove (4) screws securing the front cover to the cheese melter.

4.

From the front right side of the appliance follow the gas pipe to the gas line pressure tap.

5.

Connect the gas meter to the line pressure tap.

6.

Reinstall the burner knob handle and turn the appliance gas on.

7.

Check the appliance pressure. Reading should be 5" W.C. for natural gas and 10" W.C. for propane gas.

PILOT LIGHTER TUBE CHECK
1.

Follow steps 1-3 under Removal of Pilot Lighter Tube.

2.

Check tube flame ports for blockage. If blockage is found, blow blockage out with water or air pressure
device. If these are not available try removing blockage with a small probing device. Do not force probe
device of a larger diameter through the port openings.

3.

If blockage cannot be removed, replace the lighter tube.

4.

To reinstall or replace lighter tube follow steps 1-3 under Removal of Pilot Lighter Tube in reverse order.

Summary of Contents for ICM24

Page 1: ...ERS MODEL NO ICM24 ML 52470 52476 ICM36 ML 52471 52477 ICM48 ML 52472 52478 ICM60 ML 52473 52479 ICM72 ML 52474 52480 SERVICE MANUAL MODEL ICM VULCAN HART COMPANY P O BOX 696 LOUISVILLE KY 40201 0696...

Page 2: ...N THE EVENT A GAS ODOR IS DETECTED SHUT DOWN UNITS AT MAIN SHUT OFF VALVE AND CONTACT THE LOCAL GAS COMPANY OR GAS SUPPLIER FOR SERVICE FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE...

Page 3: ...L This manual is dedicated to the servicing of the Vulcan Hart Co ICM24 36 48 60 and 72 Cheese Melter The manual is divided into 3 sections CHECKS AND ADJUSTMENTS REMOVAL OF SERVICE PARTS AND TROUBLE...

Page 4: ...ce 5 Turn the store main gas on 6 Turn the unit gas on 7 Take the store pressure reading Store pressure should be at least 6 W C for natural gas and 11 W C for propane gas 8 If store pressure is not c...

Page 5: ...ing compressed air or water through the hood orifice opening 7 Reinstall or replace the burner nozzle by reversing steps 1 3 above REGULATOR ADJUSTMENT 1 Follow steps 1 2 under Regulator Vent Check 2...

Page 6: ...ERVICING REMOVAL OF TOP 1 Push top back towards wall until the rear top mounting foot hits the stop angle Fig 2 Fig 2 2 Be sure that the top mounting foot has cleared the front top flange and lift the...

Page 7: ...the set screw in the valve knob and remove the knob 2 With a phillips head screwdriver remove 4 screws at each corner of the front panel and remove the panel Fig 4 Fig 4 3 With a 5 8 wrench disconnec...

Page 8: ...onnect the valve 5 Install new valve using pipe dope and reversing steps 1 4 REPLACEMENT OF PILOT ADJUSTMENT VALVE 1 Follow steps 1 and 2 under Removal of Burner Valve 2 Disconnect the compression nut...

Page 9: ...1 Follow steps 1 2 under Removal of Top 2 With a 7 16 wrench remove 2 nuts Figs 8 Figs 8 3 Lift the burner mounting bracket off the appliance Figs 8 4 Slide the burner towards the center of the applia...

Page 10: ...NER NOZZLE REPLACEMENT 1 To remove the burner nozzle follow steps 1 2 and 3 under Burner Nozzle Orifice Check Fig 10 Fig 10 2 Install new nozzle by reversing steps 1 2 and 3 under Burner Nozzle Orific...

Page 11: ...lighter tube to the mounting bracket assembly See Figs 11 2 Pull lighter tube off of the mounting bracket stud See Figs 11 3 Pull the lighter tube towards the center of the appliance off the orifice h...

Page 12: ...t level side to side B Burner is improperly installed Uneven heat front to back A Appliance not level front to back Dried out products A Melting time is too long or product is too close to the burner...

Reviews: