Vulcan-Hart VL3GAS, VL3GMS, VL2GMS, VL2GAS, VL2GSS, VL3GSS Boiler Assembly, High Limit Thermostat

VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS

BOILER ASSEMBLY HIGH LIMIT THERMOSTAT

WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN CIRCUIT BOX. PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIRCUIT IS BEING SERVICED.

WARNING: SHUT OFF THE GAS BEFORE SERVICING THE UNIT.

WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH A SOAP AND WATER SOLUTION (BUBBLES). DO NOT USE AN OPEN FLAME.

1.Blow down the boiler and allow to cool, if necessary.

2.Ensure that all utilities to the steamer are off and disconnected. Drain any excess water from the boiler.

3.Disconnect the steam supply line, power leads and drain lines from the cooking compartment top to the boiler base.

4.Disconnect all plumbing connections and power leads from the components inside the control boxes that would obstruct the removal of the boiler through the front of the base, then remove those control boxes.

5.Disconnect the remaining plumbing and electrical connections from the boiler to the controls.

6.Remove the screws holding the flue and flue collector to the base.

7.Remove the anchor screws holding the boiler to the frame. Slide the boiler forward. The burner box, anchored only by the boiler, must be prevented from sliding forward with the boiler.

8.Reverse procedure to install a new boiler and check for leaks and proper operation.

WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN CIRCUIT BOX. PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIRCUIT IS BEING SERVICED.

1.Open the cabinet base doors.

2.Electric models only - for gas models proceed to step 3.

A.Newer Models - are not equipped with a hi limit thermostat but rely on the Hi limit pressure switch instead.

B.Older Models - the high limit thermostat is located behind the contactor box cover. On electric boilers with two heating elements, the thermostat is connected to one of the heating element lugs. On electric boilers with four heating elements, the thermostat is located on an aluminum plate between the center pair of elements at the top of the elements. Remove the thermostat lead wires and mounting nuts, replace thermostat and check for proper operation.

3.Gas Models only.

A.Remove the thermostat cover which is located on the front of the boiler. Disconnect the thermostat lead wires and remove the nuts securing the high limit thermostat to the boiler surface.

4.Reverse procedure to install and check for proper operation.

Page 18 of 88