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ACORN ENGINEERING FIELD SERVICE

TOLL FREE

 800-743-8259 • 

LOCAL

  626-855-4866 • 

FAX

 626-855-4863

INSTALLATION, OPERATIONS & MAINTENANCE MANUAL

®

MERIDIAN  3792

Part #: 9927-142-001

Please visit 

www.acorneng.com

for most current specifications.

A C O R N  E N G I N E E R I N G  C O M P A N Y

P. O .  B O X  3 5 2 7  •  C I T Y  O F  I N D U S T R Y,  C A  9 1 7 4 4  U . S . A .

T O L L  F R E E  8 0 0 - 4 8 8 - 8 9 9 9  : :  L O C A L  6 2 6 - 3 3 6 - 4 5 6 1

FA X  6 2 6 - 9 6 1 - 2 2 0 0  : :  w w w. a c o r n e n g . c o m 

A C O R N  E N G I N E E R I N G  C O M P A N Y

P. O .  B O X  3 5 2 7  •  C I T Y  O F  I N D U S T R Y,  C A  9 1 7 4 4  U . S . A .

T O L L  F R E E  8 0 0 - 4 8 8 - 8 9 9 9  : :  L O C A L  6 2 6 - 3 3 6 - 4 5 6 1

FA X  6 2 6 - 9 6 1 - 2 2 0 0  : :  w w w. a c o r n e n g . c o m 

TABLE OF CONTENTS

Accessibility Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Prior to Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Rough-Ins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 7

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 22
Cleaning and Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Components & Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 - 30
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 17
Piezo Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 - 20

REQUIRED ITEMS FOR INSTALLATION - NOT SUPPLIED

®

MERIDIAN  
MODEL 
3792

®

CORTERRA  
ADA-COMPLIANT
KURVE DUAL BASIN

?

7/16" Hex Wrench

?

Chalk Line

?

Hammer

?

Carpenters Level

?

1/2" NPS Supply Angle Stops And 1/2" NPS  

 

Supply Flex Hose(s)

?

1/4” Slotted Tip Screwdriver For Metering   

 

Adjustment 

?

Teflon Tape

?

Plumbers Putty

?

Fixture Wall Anchors and Anchoring Hardware 

 

(and Appropriate Tools) - For 3/8" Punching         

 

(13 Count) 

?

Driver For 1/4” Shank Bit - For Center Reject Bit 

Revised: 03/07/19

Summary of Contents for Meridian 3792

Page 1: ...FAX 626 961 2200 www acorneng com TABLE OF CONTENTS Accessibility Overview 3 Prior to Installation 2 Dimensional Data 4 Rough Ins 5 7 Troubleshooting 21 22 Cleaning and Maintenance 23 Components Repair Parts 24 30 Warranty Information 31 Installation 8 17 Piezo Adjustment 18 20 REQUIRED ITEMS FOR INSTALLATION NOT SUPPLIED MERIDIAN MODEL 3792 CORTERRA ADA COMPLIANT KURVE DUAL BASIN 7 16 Hex Wrench ...

Page 2: ...the possibility of leaks Industry standard wall backing for wall hung fixtures is required Installer provided wall anchors and wall anchoring hardware must be appropriate for wall construction and have a minimum pull out rating of 1000 lbs 453 6 kg Prior to installation supply lines must be flushed of all foreign material such as pipe dope chips or solder Debris or foreign material in water supply...

Page 3: ...AINTENANCE MANUAL MERIDIAN 3792 Please visit www acorneng com for most current specifications Page 3 of 31 Part 9927 142 001 ACCESSIBILITY OVERVIEW ADA ages 6 thru 12 ADA Adult 34 RIM MAX 4 9 121 2 21 21 183 4 27 MIN 21 121 2 4 31 RIM MAX 24 MIN 21 153 4 21 121 2 4 33 RIM MAX 29 MIN 21 173 4 9 9 OBC Revised 03 07 19 ...

Page 4: ...LOCAL 626 855 4866 FAX 626 855 4863 INSTALLATION OPERATIONS MAINTENANCE MANUAL MERIDIAN 3792 Please visit www acorneng com for most current specifications Page 4 of 31 DIMENSIONAL DATA 15 53 4 55 221 2 21 4 371 4 11 161 4 Part 9927 142 001 Revised 03 07 19 ...

Page 5: ...e 5 of 31 Part 9927 142 001 ROUGH IN DIMENSIONS ADA Adult E D C B A 120VAC 60 Hz 3A Max GFCI Protected Electrical Receptacle 3 8 Diameter Mounting Holes For Anchoring Points 10 Places Supply Stub Outs with Stops for Valve 1 2 NPT Hot Cold Supply Inlets Waste Outlet for 1 1 2 O D P Trap Frame V Notch 241 2 34 DECK HEIGHT 24 25 3 6 4 197 8 273 8 287 8 327 8 23 TYP 19 15 TYP 211 2 TYP D A E B C H C R...

Page 6: ...1 Part 9927 142 001 ROUGH IN DIMENSIONS ADA AGES 6 THRU 12 YEARS E D C B A 120VAC 60 Hz 3A Max GFCI Protected Electrical Receptacle Waste Outlet for 1 1 2 O D P Trap 3 8 Diameter Mounting Holes For Anchoring Points 10 Places Supply Stub Outs with Stops for Valve 1 2 NPT Hot Cold Supply Inlets Frame V Notch 211 2 31 DECK HEIGHT 21 22 3 6 4 167 8 243 8 257 8 297 8 23 TYP 19 15 TYP 211 2 TYP D A E B ...

Page 7: ...1 Part 9927 142 001 ROUGH IN DIMENSIONS OBC ONTARIO BUILDING CODE E D C B A Frame V Notch 120VAC 60 Hz 3A Max GFCI Protected Electrical Receptacle Waste Outlet for 1 1 2 O D P Trap Supply Stub Outs with Stops for Valve 1 2 NPT Hot Cold Supply Inlets 3 8 Diameter Mounting Holes For Anchoring Points 10 Places 231 2 33 DECK HEIGHT 23 24 3 6 4 187 8 263 8 277 8 317 8 23 TYP 19 15 TYP 211 2 TYP D A E B...

Page 8: ...mbly from frame Anchor frame to wall using 3 8 mounting hardware by others See DETAIL A Place deck assembly on frame 2making sure angle engages behind frame joggle See DETAIL B Assemble underside of bowls to frame with 1 4 20 x 1 2 hex bolts 1 4 lock washers and 1 4 fender washers provided See DETAIL C Assemble deck support flanges to outside of frame using 1 4 20 x 1 hex bolts 1 4 lock washers an...

Page 9: ... waste assembly will require field cutting and fitting by the installer 141 4 81 4 6 4 Ref 221 2 Part 9927 142 001 Install grid strainer and close elbow to bowl 3using plumber s putty Á Rubber Gasket  Flat Fiber Washer à 1 1 2 16 UNI Rough Chrome Brass Jam Nut Ä 1 1 2 16 x 1 1 4 UNI Close Ell with 3 8 NPT Clean Out Plug À Grid Strainer w 1 1 2 16 UNE Threads Assemble continuous waste piping using...

Page 10: ...supply lines must be flushed supply connections the of all foreign material such Before making up the solder sand etc for MX TP Valve install valve using 1 4 Flat AWasher 1 4 Lock Washer and 1 4 20 Hex Nut provided Flush supply lines Connect installer 1 2 NPS supply hoses to valve supply lines Connect installer provided 1 2 NPS hose to valve for ST Single Temperature valves install valve assembly ...

Page 11: ...e Wall anchors and anchoring hardware for Ø3 8 mounting holes provided by installer 4 Turn on hot and cold water supplies If any leaks are observed hand tighten connections as necessary to stop leaks before proceeding 5 Turn on fixture and allow water to flow for 2 minutes Measure water temperature at outlet If water is not at desired temperature adjust as necessary 2 Connect hot and cold water to...

Page 12: ...to desired sensing distance See DETAIL B 3 Move hand in front of sensor to distance of 2 to 4 within 5 seconds and wait until red light flashes quickly 5 Hold hand at desired sensing distance until red light stops flashing and solenoid activates See DETAIL C DETAIL A DETAIL B DETAIL C Transformer must be plugged into a GFI protected circuit Fixture must be earth grounded per N E C or applicable co...

Page 13: ...remove access panel by removing 4 10 32 x 3 4 screws from front of fixture using allen head bit provided socket driver by others Replace access panel when finished SO BAT Sensor Operation Battery Powered SENSOR OPERATION CONNECTIONS BATTERY OP Acorn does not provide batteries for BAT units Each Pack requires 6 AA batteries Part 9927 142 001 Page 13 of 31 Revised 03 07 19 SO SENSOR PPZ PUSHBUTTON R...

Page 14: ... 1 4 Min Ferrule Nut H Hand Operated 1 8 O D AIR TUBE 1 4 O D WATER LINE Leave a minimum 1 4 of polyethylene tubing through the Ferrule Nut on the pushbutton assembly This is necessary to ensure proper tubing connection Timing Screw To adjust timing turn timing screw HAND OPERATION CONNECTIONS Turn timing screw clockwise to increase timing Do not over tighten ferrule nuts Part 9927 142 001 Page 14...

Page 15: ...63 INSTALLATION OPERATIONS MAINTENANCE MANUAL MERIDIAN 3792 Please visit www acorneng com for most current specifications ACCESS PANEL INSTALLATION Install front and side access panels using 10 32 x 3 4 center reject hex head screws provided Part 9927 142 001 Page 15 of 31 Revised 03 07 19 ...

Page 16: ...t in soap dispensers Acorn Engineering Company recommends user maintenance personnel review MSDS reports of soap and possible corrosive additives noted WARNING Remove top cover from 1unit To remove cover use Allen head bit provided and unscrew 10 32 x 3 4 long vandal resistant fasteners shown Hex bit driver is installer provided Remove Corterra plug from 2top cover and soap access plug from bottom...

Page 17: ...t www acorneng com for most current specifications Optional KP Kick Plate Rough Ins Optional KP Kick Plate Installation Part 9927 142 001 Page 17 of 31 B A 171 2 TYP DIM A 11 DIM A DECK HEIGHT 15 34 14 1 2 33 13 1 2 31 Sink Mounting Frame Shown For Reference Ø1 4 x 3 8 Long Slots For Installer Provided Wall Anchors And Anchoring Hardware A B Revised 03 07 19 ...

Page 18: ...u are in the 1 sec timing mode and each time the button is pushed the LED will flash adding 1 sec to the total timing cycle To move on to the 5 sec timing mode pause and wait for the LED to flash 2 times now you are in the 5 sec timing mode Each time the button is pushed the LED will flash adding 5 sec to the total timing cycle Each timing mode 1 sec 5 sec or 20 sec timing mode can be sequenced up...

Page 19: ...ode immediately push the button 1 push equals 1 sec added to the total timing cycle Ÿ You are in the 5 sec timing mode immediately push the button 1 push equals 5 sec added to the total timing cycle Ÿ You are in the 20 sec timing mode immediately push the button 1 push equals 20 sec added to the total timing cycle Ÿ Pause and wait for the LED to flash 2 times Power down piezo button for 10 seconds...

Page 20: ...3 INSTALLATION OPERATIONS MAINTENANCE MANUAL Please visit www acorneng com for most current specifications BLACK RED BLACK SOLENOID CABLE RED POWER CABLE PROGRAMMING INDICATOR LED LIGHT TRANSPARENT EPOXY FILLING PIEZO PUSHBUTTON Page 20 of 31 Part 9927 142 001 MERIDIAN 3792 Revised 03 07 19 ...

Page 21: ...sensor Replace sensor Stops or water main closed Bad sensor to solenoid connection Debris or scale in solenoid assembly Remove solenoid pull out plunger and spring and clean with scale remover solution or pressurized air Debris or scale in diaphragm Remove diaphragm and clean Sensor flashes once when user s hands are within range Remove strainer and clean CONDITION FALSE TRIGGERING WATER FLOWS CON...

Page 22: ...e Replace servomotor seat Servomotor plate or diaphragm is obstructed Servomotor timer assembly is damaged Replace servomotor timer assembly Probable Cause Solution Valve riser tubing is crimped Straighten valve riser tubing Debris or scale in checkstop strainer Remove checkstop strainer and clean Blockage in valve flow control Remove blockage Low water pressure at supplies Increase water pressure...

Page 23: ...r should be disassembled and the parts thoroughly cleaned CARE AND CLEANING OF STAINLESS STEEL SURFACE RECOMMENDED CLEANING MATERIALS Sponge natural or artificial Nylon or other soft bristle material brush Soft cloth as used on automobile finishes IF SPOTS ARE STUBBORN OR IF YOU WISH TO TREAT A SCRATCH synthetic abrasive general purpose pads such as Scotch Brite are recommended Apply the stainless...

Page 24: ...urrent specifications 1 4 Lock Washer 0337 050 000 0331 005 000 1 4 Flat Washer COMPONENTS REPAIR PARTS Description Part No Diagram MOUNTING HARDWARE 1 4 20 UNC x 1 Hex Head Cap Screw 0206 002 000 0206 004 000 1 4 20 UNC x 1 2 Hex Head Cap Screw 1 4 Fender Washer 0331 031 000 10 32 UNF x 3 4 Center Reject Hex Socket Head Screw 0152 006 000 Part 9927 142 001 Page 24 of 31 Revised 03 07 19 ...

Page 25: ...om for most current specifications Part 9927 142 001 Page 25 of 31 1 4 20 Hex Nut 0302 005 000 Allen Head Bit With Center Reject 0296 025 199 4970 008 001 Waste Assembly Elbow Grid Strainer 4926 062 001 Description Part No COMBINED WASTE ASSEMBLY Diagram COMPONENTS REPAIR PARTS PUSHBUTTONS Pushbutton Assembly 2566 050 001 Revised 03 07 19 Blank Piezo Pushbutton 0709 067 001 ...

Page 26: ...MANUAL MERIDIAN 3792 Please visit www acorneng com for most current specifications COMPONENTS REPAIR PARTS Description Part No ENCLOSURES Diagram 6214 040 001 Kick Plate Assembly Page 26 of 31 6214 054 199 Front Cover Plate Right Hand Cover Plate 6214 053 299 Left Hand Cover Plate 6214 052 299 Part 9927 142 001 Revised 03 07 19 ...

Page 27: ...7 142 001 Page 27 of 31 COMPONENTS REPAIR PARTS ELECTRONIC HARDWARE Description Nozzle Assembly 6214 005 001 2998 055 199 9 VDC Plug In Transformer 0711 410 001 9 VDC Solenoid 2563 326 001 Part No SPOUT ASSEMBLIES Diagram And Soap Filler Spanner Key For Spout Aerator Sensor Assembly 2562 373 001 Revised 03 07 19 0710 358 001 Battery Pak Mounting Bracket 6155 013 199 9 VDC Battery Pak Assy 6 AA Bat...

Page 28: ...t specifications Description Corterra Plug Contact factory for color selection 6214 109 101 6213 129 000 Soap Filler Assembly 6214 004 001 Soap Tank Drain Adapater 6214 012 199 Soap Dispenser Assembly 6214 009 001 COMPONENTS REPAIR PARTS Part No DV SOAP OPTION Diagram MERIDIAN 3792 Part 9927 142 001 Access Plug Soap Tank 1 Gal Capacity 6214 006 001 Page 28 of 31 Revised 03 07 19 ...

Page 29: ...MPONENTS REPAIR PARTS Description Part No VALVE Diagram Optional 2 Station Hand Operated Single Temp Metering Valve Assembly Optional 2 Station 9VDC Solenoid Single Temp Valve Assembly Optional T P 2 Station Hand Operated ASSE 1070 Mixing Valve Assembly 2598 202 001 T P 2 Station 9VDC Solenoid ASSE 1070 Mixing Valve Assembly 2598 232 001 Part 9927 142 001 2598 302 001 2598 332 001 Page 29 of 31 Re...

Page 30: ... 07 19 81 2 67 8 2 3 4 5 6 VALVE SHOWN FOR REFERENCE ONLY 1 ITEM PART NUMBER DESCRIPTION 1 4224 150 001 Valve Mounting Adapter Assembly 2 4224 150 199 MTXP Mounting Channel 3 0124 005 000 10 x 1 2 Hex Head Type A 4 0331 005 000 1 4 Stainless Steel Flat Washer 5 0337 050 000 1 4 Stainless Steel Helical Lock Washer 6 0302 005 000 1 4 20 UNC Stainless Steel Hex Nut NOTE Valve Mounting Adapter is ONLY...

Page 31: ...e period after receipt of the product Where claims for defects are made the defective part or parts shall be delivered to the company prepaid at City of Industry California for inspection Acorn will not be liable for the cost of repairs alterations or replacement or for any expense connected therewith made by the owner or his agents except upon written authority from the Acorn City of Industry off...

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