Washtech 2 Series User manual

CD 100 Series 2
RACK CONVEYOR DISHWASHER
OperatorManual

WARNING
Before installation and commissioning, you must read the safety instructions and
warnings carefully and all the warning labels attached to the equipment.
IMPORTANT
Failure to comply (even partially) with the instructions given in this manual will
invalidate the product warranty and relieves the manufacturer of any responsibility.
IMPORTANT
The alteration of machine operation, design or the replacement of parts not
approved by the manufacturer may void warranties and approvals.
We have checked that the contents of this document correspond to the model described. There may be
discrepancies nevertheless, and no guarantee can be given that they are completely identical. The information
contained in this document is reviewed regularly and any necessary changes will be included in the next
edition. We welcome suggestions for improvement.
Document subject to change without prior notice.
Information supplied in this manual is copyright. No part of this work may be reproduced or copied in any
form or by any means, electronic or mechanical without the express permission of the author / publisher.
!
!

Safety Instructions
WARNING
Equipment contains dangerous voltages and can be hazardous if installed or
operated incorrectly. Non-compliance with Warnings or failure to follow the
instructions contained in this manual can result in loss of life, severe personal
injury or serious damage to property.
Installation
Use qualified, skilled personnel
Follow installation instructions
Connect to correct voltage and supply current
Provide fully accessible Electrical Isolation Switch & water supply valves
Training and Supervision
Read and Understand the Operating instructions and train all staff
This appliance must not be operated by children or infirm persons
Machine panels must only be removed by suitably qualified and trained
personnel – internal hazards include live electrics and very hot surfaces
This appliance is not intended for use as a stepladder
Hot Surfaces
Some surfaces may be hot or very hot
Chemicals
Commercial dishwashing detergents are hazardous – handle with care
Read and follow the safety information found on the labels of detergent
containers and Material Safety Data Sheets
Use protective eyewear and clothing if decanting containers
Hot Water
Do not put hands in wash water which may be over 60°C and contain
hazardous caustic detergent
Rinse water can be over 90°C
Door safety switches are designed for emergency use only
Cleaning
Do not hose down the machine or splash water over the exterior
Watch for broken glass etc when cleaning the inside of the machine
Service/Repair
Under no circumstances the user should attempt to carry out repairs
All service/repair work must be carried out by qualified personnel only

Installation
WARNING
Installer must be suitably qualified and ensure compliance with all local codes and
standards including AS/NZS 3500.1.
Failure to comply even partially with installation instructions may void the
warranty.
Positioning
Unpack machine, check for damage and complete delivery. Install machine on
sound waterproof self-draining floor and use adjustable feet to level machine.
Allow room for detergent to one side of machine or in adjacent cupboard. 20litre
container requires about 450H x 250W x 350D, but smaller containers are available
from many suppliers.
Water Supply Hot water temperature 65°C ± 5°C
Connection 20 mm (3/4” BSP) male
Hot water consumption 300 litres per hour approximately
Backflow prevention DCV = Dual Check Valve fitted standard
Pressure 200-400 KPa = 30-60 Psi.
Above this range fit pressure limiter. Don’t use small diameter plastic supply lines
especially below this range when optional rinse booster pump may be required.
FLUSH supply line before connection. Poor quality supply or excessive water
hardness may affect performance or damage machine – filtration and/or softening
is recommended.
Waste 40 mm gravity drain – refer points B on installation diagram – run waste directly
behind the machine or through open base.
Power Machine requires 3 Phase, Neutral and Earth, 400/415V, 25A/ph, 50Hz,
permanent wiring via wall switch to point C on installation diagram. Wash pump
rotation must be checked after installation to ensure correct direction (causes
excessive noise and damage).
Ventilation
10 m³/min = 170 l/sec – refer points F on installation diagram – extraction via
connected ducts or overhead canopy.
Commissioning Procedure
Connect all services as above. Turn on water and switch on power. Close machine
door and switch machine on, machine will fill. When water sprays from rinse arms
inside machine, switch machine off at wall. Remove lower front panel and switch
commissioning switch by breaking label over same.
Installation Checklist
Complete attached Installation Checklist to ensure machine is installed and
running correctly, and operator is familiar with operating procedures.
Troubleshooting
If machine doesn’t fill after switching on power, check and ensure that hot water
supply tap is open, water supply pressure is not below specification and Dual
Check Valve is correctly installed (arrows on the dual check valve’s body specify
water flow direction).
!

Installation & Maintenance Checklist
CHECK OK / NOTES MAINTENANCE ITEM
Delivery Supplied complete no transit damage
Position Level and stable on sound, waterproof, self draining floor 
Benchwork secure with smooth rack path in and out
Water Isolator valve fitted accessible, all fittings sound, no leaks
DCVs fitted correct direction
Supply Temperature 65 ± 5°C 
Flow rate minimum 15 litres per minute 
Pressure 200-350kpa, limiter fitted if above this
range, booster fitted if below this range

Cold water if required pressure not above 350 kpa 
Hardness filter or softening if required,
excessive hardness or chlorides can
damage
Power Isolating switch fitted, functional and accessible
Supply as specified voltage, current, circuit breaker
Waste Connections 40 mm sound, no leaks 
Waste line 50mm 
Ventilation
Appropriate/not excessive
refer separate section in manual,
curtains fitted correctly

Commissioning
Commissioning switch
break seal and turn on (if fitted)
Pump Rotation CONFIRM CORRECT DIRECTION
as shown by arrow on pump
if necessary rotate supply phases
Chemicals – chemicals and chemical injectors to be supplied and adjusted by professional supplier
Product
nm
container no leaks primed concentration
Detergent 
Rinse Aid 

CHECK OK / NOTES MAINTENANCE ITEM
Amps Temp.C°
Elements Wash 65 
Rinse 80

Eco-Rinse 70 when fitted 
Drier 85 when fitted

Pumps Pre-wash n/a when fitted 
Wash n/a correct rotation 
Rinse n/a 
Eco-Rinse n/a when fitted 
Motors Drive n/a 
Drier fan n/a when fitted 
Electrical Safety test if required 
Water Wash system jets clear, baffles adjusted 
Rinse system arms fitted, jets clear
actuator and timer functional

Fill levels pressure switch settings 
Upstands water cascading correctly
Conveyor Drive system secure, chain OK, clutch effective 
Accessories fitted and functional
Noise sounds OK 
Controls Door switch/s functional 
Stop switch functional when fitted 
Performance Wash and rinse effective 
Operation Run several
racks
confirm correct and effective operation 
Operator Training – check Operator has copy of Operator Manual and is familiar with procedures
Manual confirmed Model
Start-up Serial No:
Pre-rinse and racking Owner
Machine operation Location
Shut down + Drain Technician
Clean Date
Check Signed

Operation
Description of Controls
Operating Instructions
Start up Fit drain upstand, wash pump filter, scrap trays and shut doors.
Turn wall and machine power switches on.
Power light glows red and machine fills automatically.
When machine is full, filling automatically stops.
Ready light glows amber when the machine is up to required temperature.
Operation Press Start button to operate machine.
Green Cycle light glows during an operation.
When Ready light is illuminated racks can be fed into the machine.
NOTE:
Conveyor will not operate unless amber Ready light is illuminated.
Shut down every night
Press Stop button. Turn machine and wall power switches off.
Remove scrap trays and rinse clean.
Remove drain upstand to drain tank.
Remove wash pump inlet filter and rinse clean.
Replace drain upstand, filter and scrap trays.

Performance
Hot Water Supply
An adequate supply of water at the correct temperature and pressure is essential
for effective operation of your machine. Refer Installation information for detail.
Water softening is recommended in hard water areas - especially for glasswashing.
Pre-rinsing Pre-scraping of dishes is required by Food Hygiene Regulations. The best method
is to pre-rinse with warm water with a Fisher Pre-rinse Unit - or alternatively by
scraping or dunking in water. Cutlery should be pre-soaked in warm water,
preferably containing cutlery pre-soak compound - refer your chemical supplier.
Racking Procedures
Do not overload racks or cutlery containers, minimise the overlap of crockery.
Cycle times are short and water consumption per cycle low - so there is no
advantage in overloading racks.
Cycle Times For multi-cycle machine use the longest cycle whenever possible. Note that water
consumption does not increase with longer cycles. Only switch to faster cycles
when it is necessary.
Detergent Use of correct type and quantity of detergent is essential to the performance of the
machine. Low foam specialty products are recommended. We strongly
recommend that you use a professional dishmachine chemical supplier - and will
be pleased to recommend a supplier in your region. Discuss with them the use of
cutlery pre soak solution, detergent and drying agent.
Drying Single tank commercial dishwashers do not have a drying cycle. However, the
machines do rinse at high temperatures which promote fast drying particularly
when drying agents are used. We recommend prompt removal of the rack from
the machine - leave the rack on the bench for 2 to 3 minutes before emptying.
This time will be reduced with correct use of drying agent (rinse fluid) which
reduces water surface tension and allows water to drain quickly from wash ware.
For advice on drying agents and injectors refer to your chemical supplier.
Daily CleaningIt is essential that the machine is drained and cleaned at the end of each day. Drain
the machine then remove, clean and replace filters as per the operating
instructions. Regularly check the wash and rinse jets and clean them if necessary –
refer Maintenance section.

Maintenance
Regular Cleaning
1. Remove upstand 1 to drain wash tank. Remove scrap trays 2 and wash pump
inlet filter 3. Clean them with water and a brush to clear grids.
2. Remove lower wash arms 4 – lift to unhook and then withdraw. Remove upper
wash arms 5 – push the catch 6 up and then withdraw. Remove rinse arms 7 and 8
– push the catch 9 up and withdraw. If necessary, remove the end cap screws 10
from the wash and rinse arms. Flush arms with water using a toothpick or
paperclip, if necessary, to clear jets.
Regular Servicing
Regular servicing of the dishwasher is essential to keep the machine in top working
condition and get the best performance results.
Please contact your Service Provider to organize regular servicing of the
dishwasher.