Zenith 3780 Digital Combination Locks Installation Guide

: August 3, 2024
: Zenith

Table of Contents

Zenith 3780 Digital Combination Locks
Fitting Instructions
Installation Guide – IMPORTANT NOTES
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Zenith 3780 Digital Combination Locks

Fitting Instructions

The Zenith Digital Combination Lock can be fitted to cupboards, cabinets and lockers etc as a direct replacement for existing cam locks or for the Lowe & Fletcher 3751 Digital Combination Lock. It can also be easily fitted to cupboards and cabinets that do not have an existing locking device.

Special Notes

Before installing the Zenith Digital Combination Lock, remove battery pull tab and familiarise yourself with the operation and programming.
Unless manufactured to special order, the lock is supplied in the “PRIVATE” operating mode.
In this mode, the user must enter a four-digit User Code to open it. The unit will re-lock itself after four seconds. The lock can be opened at any time using the Master Code.
Unless manufactured to special order, the default Master Code is 11 33 55 77 and the default User Code is 22 44.
These codes are common to all standard locks and it is veryimportant that you set your own personal Master and User Codes.
Your lock is not secure until you have changed the default Master Code and User Code.
Keep a safe record of your master code as it is not possible to make any programming changes without it.
Please see programming guide to set your own codes.

Installation Guide – IMPORTANT NOTES

The Zenith lock can be fitted with two or three screws. Always use the screw position “A” behind the logo button. Use either position “B” or “C” (or both if preferred).
Before drilling fixing holes, please ensure that the position of the Digital Combination Lock when fitted will allow clearance for selected cam to work.

REMOVE BATTERY PULL TAB BEFORE FIXING LOCK

A) New Installation

Step 1: Place template on door and mark TWO 4.5mm (3/16”) holes (refer to installation diagrams). Use hole position “A” and either of positions “B” & “C”. Mark ONE 16mm (5/8”) hole (position “D”).
Step 2: Drill both fixing holes and the 16mm clearance hole.
Step 3: Fit the Digital Combination Lock to the door by passing the spindle through the 16mm (5/8”) hole.
Step 4: Fit at least two fixing bolts to suit your door thickness.
Step 5: Tighten the upper and lower bolt.
Step 6: Select the cam which suits your door and frame and attach it to the square shaft at the end of the spindle using a M4 x 8 screw and domed spring washer.
Step 7: Now check the operation of the lock using the factory User Code 22 44.
Step 8: If the lock is functioning correctly, CHANGE THE DEFAULT MASTER CODE 11 33 55 77 and DEFAULT USER CODE 22 44 and program the lock using the programming and operating instructions enclosed.

B) Replacing existing cam lock with the 378- Digital Combination Lock

Step 1: Remove existing cam lock.
Step 2: Place installation template on door over hole left by cam lock (position “D”) and mark TWO 4.5mm (3/16”) holes (refer to installation diagrams). Use hole position “A” and either of positions “B” & “C”.
Step 3: Drill the two 4.5mm (3/16”) fixing holes.
Step 4: Continue installation from step 3 to 8, above.

C) Replacing existing L &F 3751 Digital Combination Lock with the 378- Digital Combination Lock

Step 1: Remove existing electronic lock.
Step 2: Place installation template on door over the 16mm (5/8”) hole left by digital lock in position “D” and the 4.5mm hole in position “A”. Mark ONE additional 4.5mm (3/16”) hole (refer to installation diagrams). Use either position “B” or “C”.
Step 3: Drill the 4.5mm (3/16”) fixing hole.
Step 4: Continue installation from step 3 to 8, above.

IMPORTANT NOTE
Before drilling fixing holes, please ensure that the position of the lock when fitted will allow clearance for the cam to function. Please check that template is correct size before use – copies can be distorted.

HOLES A, B & C DIAMETER 4.5 / 5.0mm
HOLE D DIAMETER 16.0 / 16.5mm
ALWAYS USE FIXING HOLE A AND USE EITHER FIXING HOLE B OR C

LOWE & FLETCHER LTD
Moorcroft Drive, Wednesbury, West Midlands, WS10 7DE, UK
Tel : +44 (0) 121 505 0400
Email:sales@lowe-and-fletcher.co.uk
www.lowe-and-fletcher.co.uk

LOWE & FLETCHER, INC.
650 Airport Place, Norton Shores, MI-49441, Michigan, USA
Tel: +1 (616) 994 0490
Email:sales@loweandfletcherinc.com
www.loweandfletcherinc.com

EURO-LOCKS SA NV
Rue de la Fontaine 8, 6600 Bastogne, Belgium
Tel : +32 61 212 261
Email:sales@euro-locks.be
www.euro-locks.be

EURO-LOCKS SA
1 Rue du Stade, 57730 Folschviller, France
Tel : +33 (0) 3 87 92 61 11
Email:euro-locks@euro-locks.fr
www.euro-locks.fr

EURO-LOCKS GMBH
Am Bruchwald 22, 66280 Sulzbach/Neuweiler, Germany
Tel : +49 (0) 6897 9072 0
Email:vertrieb@euro-locks.de
www.euro-locks.de

EURO-LOCKS SP. Z O.O.
ul. Pawła 29, 41-708 Ruda Śląska, Poland
Tel: +48 (32) 344-78-70, -82, -84
Email:sekretariat@euro-locks.pl
www.euro-locks.pl

39224214 – 378- Surface Mounted Zenith Installation Instructions V3 January 2024