Page 2 - TABLE OF CONTENTS
VHX SERIES STEAMERS F25154 (February 2004) Page 2 of 48 TABLE OF CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Installation, Operation and Cleaning . . . . . . . . . ....
Page 4 - GENERAL; INSTALLATION, OPERATION
VHX SERIES STEAMERS - GENERAL F25154 (February 2004) Page 4 of 48 GENERAL INSTALLATION, OPERATION AND CLEANING Refer to the Installation and Operation Manual forspecific instructions. INTRODUCTION Steam Cooking Convection cooking in pressure-less steamingcompartments will steam cook fresh foods or w...
Page 6 - TOOLS
VHX SERIES STEAMERS - COMPONENT FUNCTION F25154 (February 2004) Page 6 of 48 Electrical MODELS TOTAL KW AMPERAGE 1 PHASE 3 PHASE 208V 240V 208V 240V 480V VHX24E, VHX24E5, MHB24E 24 116 100 67 58 29 36 --- --- 100 87 44 42 --- --- 117 --- --- 48 --- --- --- 116 58 NOTES: 1. Amperage values in the tab...
Page 7 - REMOVAL AND REPLACEMENT OF PARTS; PRESSURE SWITCH CONTROL
VHX SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS F25154 (February 2004) Page 7 of 48 REMOVAL AND REPLACEMENT OF PARTS PRESSURE SWITCH CONTROL BOX COMPONENTS WARNING: DISCONNECT THE ELECTRICAL POWER TO THEMACHINE AND FOLLOW LOCKOUT /TAGOUT PROCEDURES. CAUTION: Certain components in this system ...
Page 9 - WATER LEVEL GAUGE
VHX SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS F25154 (February 2004) Page 9 of 48 LEFT SIDE VIEW SHOWN 4. To remove: A. Contactors. 1) Release catch at the base of contactor and remove from DIN rail. B. Relays. 1) Remove from socket. C. Relay Board. 1) Compress locking tab on the boardmount...
Page 10 - HEATING ELEMENTS
VHX SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS F25154 (February 2004) Page 10 of 48 B. Insert one end of glass tube into top gaugefitting then align opposite end of tube withbottom gauge fitting. C. Lower the glass tube into bottom gaugefitting then center the tube between top &bottom ga...
Page 11 - HEATING ELEMENT MOUNTING
VHX SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS F25154 (February 2004) Page 11 of 48 HEATING ELEMENT MOUNTING PLATE WARNING: DISCONNECT THE ELECTRICAL POWER TO THEMACHINE AND FOLLOW LOCKOUT /TAGOUT PROCEDURES. 1. Remove heating elements as outlined underHEATING ELEMENTS. 2. Loosen mounting ha...
Page 12 - BOILER ASSEMBLY
VHX SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS F25154 (February 2004) Page 12 of 48 RIGHT SIDE VIEW SHOWN LEFT SIDE VIEW SHOWN C. Position heating element mounting platewith mounting studs for the element coverat the top. NOTE: When installing heating element mounting plate , install and tig...
Page 14 - COOKING COMPARTMENT
VHX SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS F25154 (February 2004) Page 14 of 48 3. To install: A. On the two replacement descalers, stretchthe coiled wire (cathode) at the top toelongate the wire then form an open loop. B. Hang the descalers on the front horizontalsupport rod; one to the...
Page 16 - SERVICE PROCEDURES AND ADJUSTMENTS; BOILER
VHX SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS F25154 (February 2004) Page 16 of 48 SERVICE PROCEDURES AND ADJUSTMENTS WARNING: CERTAIN PROCEDURES IN THIS SECTION REQUIRES ELECTRICAL TEST OR MEASUREMENTS WHILE POWER IS APPLIED TO THE MACHINE. EXERCISE EXTREME CAUTION AT ALLTIMES. IF TEST PO...
Page 17 - WATER LEVEL CONTROLS
VHX SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS F25154 (February 2004) Page 17 of 48 1. Access the descalers (cathodic protectors) asoutlined in REMOVAL AND REPLACEMENTOF PARTS. 2. Inspect the two descalers hanging in boiler. NOTE: As descalers erode over time, the diameter decreases while t...
Page 20 - temporarily; BOILER FILL AND COLD WATER
VHX SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS F25154 (February 2004) Page 20 of 48 HIGH LIMIT PRESSURE SWITCH ADJUSTMENT NOTE: Before the high limit pressure switch can be adjusted, the cycling pressure switch must be temporarily removed from the boiler control circuit. This allows the boi...
Page 21 - COLD WATER CONDENSER
VHX SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS F25154 (February 2004) Page 21 of 48 3. To check boiler fill valve: A. Verify 120VAC to solenoid valve coil. B. If voltage is correct but valve is not opening(little or no water flow), turn power switchoff and disconnect power to machine. 1) Re...
Page 24 - ELECTRICAL OPERATION; COMPONENT FUNCTION; CABINET BASE BOILER CONTROLS
VHX SERIES STEAMER - ELECTRICAL OPERATION F25154 (February 2004) Page 24 of 48 ELECTRICAL OPERATION COMPONENT FUNCTION CABINET BASE BOILER CONTROLS Power Switch . . . . . . . . . . . . . . . . Controls 120VAC to the boiler control circuit. Reset Switch (Manual) . . . . . . . . . Resets the low water...
Page 25 - COOKING COMPARTMENT CONTROLS
VHX SERIES STEAMER - ELECTRICAL OPERATION F25154 (February 2004) Page 25 of 48 Supply Voltage Transformer . . . . Provides 120VAC to the boiler control and cooking compartment control circuits. Cycling Contactors B & D . . . . . . Supplies line voltage to one side of heating elements thru cyclin...
Page 26 - COMPONENT LOCATIONS
VHX SERIES STEAMER - ELECTRICAL OPERATION F25154 (February 2004) Page 26 of 48 COMPONENT LOCATIONS Boiler Base Controls
Page 31 - RELAY BOARD
VHX SERIES STEAMER - ELECTRICAL OPERATION F25154 (February 2004) Page 31 of 48 RELAY BOARD Layout, Legend & Diagnostic Test Points The relay board provides a centralized location for wire harness connections and power transfer through boardrelays (K1-K4) to the other steamer controls. Also, prov...
Page 33 - SEQUENCE OF OPERATION
VHX SERIES STEAMER - ELECTRICAL OPERATION F25154 (February 2004) Page 33 of 48 SEQUENCE OF OPERATION Refer to schematic diagram AI1385 for the electricalsequence of operation. Initial Fill and Preheat 1. Conditions. A. Boiler connected to correct supply voltageand is properly grounded. 1) Supply vol...
Page 36 - SCHEMATICS
VHX SERIES STEAMER - ELECTRICAL OPERATION F25154 (February 2004) Page 36 of 48 SCHEMATICS Boiler Base Controls
Page 38 - WIRING DIAGRAMS
VHX SERIES STEAMER - ELECTRICAL OPERATION F25154 (February 2004) Page 38 of 48 WIRING DIAGRAMS Boiler Base Controls
Page 42 - TROUBLESHOOTING; BOILER BASE CONTROLS
VHX SERIES STEAMER - TROUBLESHOOTING F25154 (February 2004) Page 42 of 48 TROUBLESHOOTING BOILER BASE CONTROLS SYMPTOM POSSIBLE CAUSES Steamer does not operate, low water lightand high pressure lights not lit. 1. Main circuit breaker off; or control circuit fuse F1 or F2 open. 2. Supply voltage inco...
Page 46 - – NOTES –
VHX SERIES STEAMER F25154 (February 2004) Page 46 of 48 – NOTES –
Page 48 - CONDENSED SPARE PARTS LIST
VHX SERIES STEAMER - CONDENSED SPARE PARTS LIST F25154 (February 2004) Printed in U.S.A. CONDENSED SPARE PARTS LIST VHX24E, VHX24E5, MHB24E BOILER BASE PART NUMBER DESCRIPTION NOTES 855051-1 Element, 9kw 208V 855051-2 Element, 9kw 240V 855051-3 Element, 9kw 480V 855051-4 Element, 10.5kw 208V 855051-...