CMA DISHMACHINES H-1X Undercounter Dishwasher

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Installation/Operation Manual  

High Temperature  

Undercounter Dishwasher  

Model H-1X  

High Temperature Wash and Drain  

with built-in booster and Pumped  

Final Rinse  

Issue Date: Sept 23 2021  

Manual P/N  

For machines beginning with S/N W190688229 and above  

Printed in the USA  

CMA Dishmachines  

12700 Knott Avenue  

Garden Grove, CA 92841  

Toll-free: 1 (800) 854-6417  

VIEW FULL SCREEN PDF MANUAL

General	Details
Name	CMA DISHMACHINES H-1X Undercounter Dishwasher
Make	CMA Dishmachines
Language	English
Filetype	PDF (Download)
File size	1.97 MB

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• ALL DISHWASHER INSTRUCTIONS & USER MANUALS
• CMA Dishmachines

CMA DISHMACHINES H-1X Undercounter Dishwasher Overview

Summary of Contents

• Page 1: Installation/Operation Manual High temperature undercounter dishwasher Model H-1X High temperature wash and drain with built-in booster and pumped final rinse Issue date: Sept 23 2021 For machines beginning with S/N W190688229 and above
• Page 2: Product registration is available online. Connect to the internet to register your machine. Enter the provided URL to complete the registration process.
• Page 3: For future reference, record your dishwasher information in the box below. The model no., serial no., voltage, Hz and phase are needed to identify your machine and to answer questions. The machine data plate is located on the lower front panel. Please have this information ready if you call for service assistance.
• Page 4: Specifications are subject to change based on continual product improvement. Released first edition.
• Page 5: Revision history Installation Receiving Placement Water connection Drain connection Electrical connection Machine start-up Normal wash mode Cleaning the wash tank
• Page 6: Installation The installation of the dishwasher must be performed by qualified service personnel familiar with food service equipment. Problems due to improper installation are not covered by the Limited Warranty. The installation must comply with all local electrical, plumbing, health and safety codes or applicable requirements. Plumbing connections must be made before the electrical connections. Damage to water heaters will occur if the power is turned on without an adequate water supply. It is the installing plumber's responsibility to flush the incoming water line to remove debris before connecting to the machine. All models have a 6 ft. flexible hot water fill hose with a 3/4 female garden hose connector. A 1/2 or larger main incoming supply line must be installed to the dishwasher. A water hardness of 3 grains/gal (US) or less is recommended. The flowing incoming hot water supply must be between 25-95 psi and provide a minimum 140°F/66°C.
• Page 7: Installation The dishwasher will not drain correctly if it is connected to a disposer. The drain hose is looped and clamped and must not be changed. Altering the drain hose routing may result in the machine’s inability to drain or may cause the machine to siphon the water out of the machine.
• Page 8: Installation Drain connection Failure to follow the drain connection instructions may void the warranty. The machine is equipped with a 6ft. [2m] 5/8 I.D. drain hose. The maximum drain height connection must not exceed 3ft. [1m] and must be vented to prevent wash tank siphoning. The drain hose is located at the rear of the machine and is secured by two clamps. A 3/4 hose barb fitting is strapped to the drain. The maximum drain flow is 15 US gpm/12.4 imp gpm/60 lpm. Do not remove the clamps holding the drain hose to the back of the machine. Do not connect the dishwasher to a disposer. Do not reduce the size of the drain hose connection or use a domestic drain fitting. Do not allow the drain hose to kink.
• Page 9: Installation Building drain connection Install the drain hose to an 1-1/2 or larger WYE fitting. The building drain system must be properly vented. Connection to a TEE fitting will prevent the dishwasher from draining completely. Do connect the flexible drain hose to a vented WYE connection. Do not connect the flexible drain hose to a TEE fitting. Indirect drain connection A 1 (25.4mm) minimum air gap must be maintained between the outlet of the drain hose and the flood-level rim of the drain receptacle. Drain problems are often due to improper installation of the drain hose and may not be covered by the limited warranty.
• Page 10: Installation Electrical connection Connect power to the main terminal block The installation of the dishwasher must comply with all local electrical, plumbing, health and safety codes or in the absence of local codes, installed in accordance with the applicable requirements in the National Electrical Code, NFPA 70, Canadian Electrical Code (CEC), Part 1, CSA C22.1; and the Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations, NFPA 96. The electrical power must be a 2-wire plus ground supply. Check the data plate on the front of the dishwasher for the phase of the machine. Remove the lower access panel. The main terminal block has connections for L1, L2 and ground. Connect ground, then connect L1, L2 to 208-230 VAC. Do not connect power to L3. Main power connections are complete.
• Page 11: Installation Electrical connection Connect power to the main terminal block Warning: Electrocution may occur when working on energized circuits. Disconnect power at main breaker or service disconnect switch; lock out and tag to indicate work is being performed on the circuit. Provide a 3 feet/1 meter service loop in the power supply cable to service the machine. Single phase power requirement The electrical power must be a 2-wire plus ground supply, hard wired to a dedicated, appropriately sized circuit breaker.
• Page 12: Installation Electrical connection Connect power to the main terminal block Remove the lower front dishwasher panel. Remove the retaining fastener from the main terminal block.
• Page 13: Installation Electrical connection Provide a 3 foot/1 meter service loop in the machine power supply cable. Route the power cable from machine rear to terminal block making sure the cable does not touch the booster tank. Connect the power cable to the terminal block bracket using a suitable strain relief connector. Connect the power wires according to the wiring diagram. A 30 / 76 cm service loop must be provided strain-relief knockout behind the unit for servicing. Thread the power cable through the middle slot in the dishwasher rear panel. Secure the cable to the terminal box using the proper strain relief. Connect the incoming power as shown at left. Two power wires plus an additional wire must be provided for machine ground.
• Page 14: Installation Booster fill procedure Follow the instructions to fill the booster tank prior to washing dishes. Do not turn the dishwasher power switch on. Turn the main water supply to the machine on. Turn the main breaker or disconnect power switch on. Press and hold the dishwasher start switch for three seconds to activate the fill solenoid. Continue to hold the start switch until water enters the wash tank. Release the start button. Booster pre-fill is complete.
• Page 15: Initial start-up Contact a local chemical supplier for detergent and rinse-aid chemicals. The detergent should be a non-chlorinated liquid detergent. The chemical dispensing pumps are adjusted by the chemical supplier. The dishwasher is equipped with a built-in detergent dispensing pump and rinse-aid dispensing pump. The pumps are located on the lower panel behind the lower-front access panel. Each pump is equipped with 6 feet [1.8 m] of pick-up supply tubing, a stiffener tube, and a strainer. A red label marked detergent is attached to the detergent pump inlet tubing. A blue label marked rinse-aid is attached to the rinse-aid pump inlet tubing. The detergent supply should be a non-chlorinated liquid detergent.
• Page 16: Installation Priming the chemical dispensing pumps is essential before operating the dishwasher and whenever the container is changed. The chemical dispensing pump supply lines must be primed for proper operation. Ensure the containers are full and the correct pick-up tubes are in their containers. Turn the dishwasher power switch ON to fill the machine with water. Push and hold the prime push button DOWN to the rinse-aid position for thirty seconds until detergent is observed entering the wash compartment. Release the push button after observing detergent flow. Open the dishwasher door and push and hold the prime push button UP to the detergent position until detergent is observed entering the wash compartment. Release the button after observing detergent flow. Inspect and replace the chemical dispensing pump squeeze tubes every six months.
• Page 17: Operation Normal wash mode Control panel In cycle LED light Start Push button Power switch Wait Final rinse cycle begins at the end of the wash cycle. The machine drains and refills with fresh hot water. Rinse sentry mode will extend wash cycle time if the final rinse temperature has not reached the required level.
• Page 18: Operation Loading dish racks Do not overload the dish rack. Load one dish rack into the machine at a time. Prescrap and rinse the wares before loading to remove large food particles. Load soiled wares into the dish rack. Place plates and glasses in a peg rack. Place cups and bowls in an optional flat bottom rack. Place utensils in a single layer in a flat-bottom rack. Slide one dish rack into the wash compartment ensuring wares do not interfere with the rotating spray arms.
• Page 19: Operation Loading dish racks Load pots and pans in a peg rack or optional flat-bottom rack. Load utensils in a single layer in a peg rack or an optional flat-bottom rack. Load cups and bowls in a peg rack or an optional flat-bottom rack. Never stack dish racks. Wash one dish rack at a time.
• Page 20: Operational display shows the machine's status throughout the cycle. When the power switch is turned ON, the system information screen will briefly show firmware version, parameter settings, and cycle counts. The machine is filling, and the wait light is illuminated. A progress bar indicates the fill time remaining. The red thermometer indicator shows the booster tank is heating, and the wait light remains illuminated. The wait light indicates the cycle is pending, and the progress bar shows remaining heat time. The booster heater has achieved temperature, and the blue thermometer bar shows the wash tank heat is active. The wait light is out, and READY indicates a cycle may begin. Ready indicates the machine will wash, with 155 °F showing the wash tank temperature.
• Page 21: Operation Sump fill level should be 1/4” to 3/8” below level of sump flange. The status indicator shows wash cycle progress. In-cycle light is illuminated. When the wash cycle is complete, the machine will drain all of the water and refill with fresh hot water. Display changes to red and indicates rinse temperature.
• Page 22: Operation Rinse sentry Autoclean drain When the machine is turned off, the AutoClean screen with the status indicator is shown. This takes approximately 2-1/2 minutes. When complete, open door to allow machine interior to air dry.
• Page 23: Cleaning the wash tank is crucial. Drain and clean the dishwasher every 2 hours of continuous operation, after each meal period, and at the end of the day. Remove the upper and lower spray arms and flush clean with water. Remove the scrap screen making sure food soils do not fall into the tank. Flush and back flush with clean water. Check the sump. Check the pump intake strainer. Do not scrub the interior with a metal pad. Check the heating element for lime buildup and remove. Wipe the exterior of the machine with a soft cloth and mild detergent.
• Page 24: Cleaning the spray arms involves unscrewing the retaining screw from the upper and lower interchangeable spray arms. Flush the spray arms clean in a sink, ensuring to flush the spray arm bearings. Use grooves to loosen the hub for cleaning. A paper clip can be used to clean nozzles. A coin or flat head driver can be used to flush the spray arm.
• Page 25: Cleaning the scrap screen and sump strainer involves several steps. Lift the scrap screen straight up and out of the machine to prevent food particles from falling into the tank sump. Flush the scrap screen in a remote sink, ensuring to back-flush both sides of the screen. Wipe the tank sump of water and debris. Carefully inspect the pump intake strainer, which is not removable but must be thoroughly cleaned before reinstalling the scrap screen. A clogged or restricted sump strainer will prevent the proper washing, rinsing, and draining of the machine. Wipe the exterior of the machine with a soft cloth and mild detergent. Do not spray the exterior with water or bleach. Leave the door open to aid in overnight drying.
• Page 26: Deliming Warning: Death or serious injury may result when deliming solution is mixed with sodium hypochlorite. Deliming solutions can cause severe irritation and possible chemical burns. Always wear protective clothing and goggles when handling chemicals. Follow the steps below to delime the dishwasher. Open the dishwasher door and remove the dish rack. Carefully add the deliming chemical to the wash tank in accordance with your chemical supplier's instructions. Check the deliming results after the cycle has ended. Run 4 empty cycles to ensure all deliming chemicals are flushed from the machine. Deliming is complete.
• Page 27: Maintenance schedules outline daily, weekly, semi-annual, and yearly tasks. Daily maintenance includes checking wash arm and rinse arm spray jets, cleaning the scrap screen and sump strainer, and ensuring the water supply is on. Weekly maintenance involves performing daily tasks, inspecting water lines for leaks, and ensuring the dishwasher is level. Semi-annual maintenance requires inspecting chemical dispensing pump tubing and flushing chemical tubing with hot water. Detergent squeeze tubes should be inspected or replaced every six months. Yearly maintenance involves contacting an authorized service agent for a preventive maintenance inspection. There are no lubrication points for this dishwasher.
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• Page 29: Parameter setting instructions Caution: Parameter changes must be made by qualified personnel only. Locate control board shown below. Wash temperature adjustment in cycle. The following parameters may be changed depending on model: 1. Detergent concentration 2. Rinse temp 3. Wash temp 4. Rinse aid 5. Fill time 6. Units (F-C) 7. Language (English - French) To change parameters: Push and hold the “Menu” button.
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