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CMA Dishmachines
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CMA-44
User Manual
25 pgs1.68 Mb0
Service Manual
35 pgs1.23 Mb0
Parts List
19 pgs2.07 Mb0
Part Manual
26 pgs2.64 Mb0
Table of contents
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CMA Dishmachines CMA-44 User Manual

www.cmadishmachines.com
Table of Contents
CMA-44
1. SPECIFICATIONS................................................................................................. 2
1.1. CMA-44.......................................................................................................................................... 2
2. GETTING STARTED............................................................................................ 3
2.1. Introduction to CMA-44................................................................................................................. 3
2.2. Receiving and Installation.............................................................................................................. 4
2.3. Receiving and Installation (Old Models)........................................................................................ 5
2.3.8.1. Chemical Dispensers .................................................................................................... 12
2.3.8.2. Hood Fan Motor ........................................................................................................... 12
2.4. Safety Tips for the CMA-44......................................................................................................... 13
3. OPERATION ........................................................................................................ 14
3.1. Initial Setup .................................................................................................................................. 14
3.2. Beginning Operation..................................................................................................................... 15
3.2.1.1. Low Temperature Applications.................................................................................... 16
3.3. Regular Service and Maintenance Checklist................................................................................ 17
3.4. Quick service guide...................................................................................................................... 19
3.5. Trouble Shooting.......................................................................................................................... 20
4. CMA-44 CUSTOMER NOTICE............................................................................ 21
5. ELECTRICAL DIAGRAM................................................................................. 23
6. ELECTRICAL DIAGRAM (OLD MODELS) .................................................. 24
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1. Specifications

1.1. CMA-44
WATER CONSUMPTION

CMA-44

L.T.
CMA-44
H.T.
PER RACK (FINAL RINSE) .8 GAL. .94 GAL. PER HOUR (FINAL RINSE) 192 GAL. 192 GAL.
CONVEYOR SPEED
FEET PER MINUTE 6.75 5.7
OPERATING CAPACITY
RACKS PER HOUR (NSF rated) 242 205
OPERATING TEMPERATURE
WASH (MIN) 140° - 150° F 150° - 160° F FINAL RINSE (MIN) 140° - 150° F 180° - 195° F WATER REQUIREMENTS INLET TEMPERATURE (MIN) 140° F 180° F WATER INLET SIZE FINAL RINSE SIZE
3/4”
1/2” DRAIN SIZE 2” FINAL RINSE PRESSURE
HOLDING TANK CAPACITY PUMP CAPACITY
20 PSI ± 5PSI
16 GAL.
(ALL PUMPS) 52 GPM (each) MOTORS WASH PUMP (2) 1 HP CONVEYOR 1/3 HP DIMENSIONS DEPTH 25-1/8” WIDTH 44” HEIGHT 55 -1/2”-56-1/2” STANDARD TABLE HEIGHT 32 ½” adjusts to 34” MAX CLEARANCE FOR DISHES 19” STRANDARD RACKS 19 ¾” x 19 ¾”
ELECTRICAL RATING
HEATER
VOLTS PHASE AMPS
208 1 64 240 1 71 208 3 36 240 3 40
10 kW
SHIPPING WEIGHT
APPROXIMATE
MODEL CMA-44 Installation & Operation Manual Rev. 2 .15 10/18/07 Page
600#
2

Getting Started

2. Getting Started

2.1. Introduction to CMA-44

The CMA-44 is designed to give maximum cleaning in 44 inches. It represents the cleaning power of machines twice its length. The curtains incorporated in the machine minimize transfer from tank to tank during the wash and sanitizing procedures.
Energy costs for running the CMA-44 have been greatly reduced by the introduction of stage washing. This design allows the heavy food soil to be removed in the first station, which provides a relatively clean dish before it reaches the wash stage in the center tank.
The supply water to the CMA-44L must be a minimum of 140°F, while the CMA-44H requires two supply lines; one at a minimum water temperature of 180°F (for RINSE), and the other at a minimum temperature of 140° F (for FILL). Either model requires the supply water to be provided at 24-PSI (Pounds per Square Inch) minimum with 6 GPM (Gallons Per Minute) flow rate and 200 GPH (Gallons Per Hour) recovery rate. The pipe supplying the water must be 3/4”. The plumbing connection is located at the top back of the machine.
The CMA-44 features a scrap tray that may be emptied on a periodic basis without interruption of the flow of work and the manner in which the tank is filled ensures that the dishes are always rinsed with fresh water instead of re-circulated water. The CMA-44L is designed to deliver 0.8 gallons of fresh rinse water and the CMA-44H is designed to deliver 0.94 gallons of fresh rinse water for each rack. This water flows from the rinse and power wash tank into the pre-wash tank and then overflows into the scrap tray carrying debris with it, thereby providing a much cleaner environment for the wash and rinse cycles.
A single-phase CMA-44 is available for installations where the only power available is 208V­230V/1-PH.
There are also enhancements that can be chosen when desired such as an optional “Auto-Fill” function, optional Vent Hood Adaptors and other machine accessories such as stainless steel dishtables. Call (800) 854-6417 for more information.
This manual is structured to provide a complete reference guide to the CMA-44. It is presented in a manner that all users will be able to comprehend and use as an effective tool in supporting th e operation and maintenance of the dishmachine. The first section explains how the machine is packaged and what to look for when receiving the machine.
Instructions are provided in the manual explaining how to unpack the machine and then install and set up the machine for use. Requirements are given for plumbing, wiring, and space considerations. These attributes of the machine are always taken into consideration by our well- trained sales representatives prior to the order being placed. In the manual, additional installation guidance is given to ensure the machine can run at optimum conditions.
The
Operation Section of the manual may be used for instruction and procedures when required.
We make this portion of the manual easy to understand so that all levels of operators may be able to read and comprehend the operation of the machine. The function of the machine itself is mostly automatic and takes little training to put into full operation. The includes diagnostic considerations for the machine when problems occur.
We are committed to providing the best machines and customer service in the food industry and your feedback is welcome.
Operation Section also
MODEL CMA-44 Installation & Operation Manual Rev. 2 .15 10/18/07 Page
3
Getting Started

2.2. Receiving and Installation

When you receive your new CMA-44, complete the assembly by installing the scrap tray assembly with its overflow chute, the two wrapper shields and the curtain rods, which are shipped inside the machine. After the box has been removed from the machine, remove the left and right stainless steel wrapper shields and bolt them in place with the nuts and bolts provided. The wrapper shield with the extra curtain clamps mounts onto the dirty end of the machine. Next, mount the scrap tray assembly and overflow chute into position (see section
Assembly and Overflow Chute Installation).
All of the spray arms should be inserted and in place over the wash tank compartments. There are a total of four curtains used in the CMA-44; two are long- narrow, two are short- wide.
The two long-narrow curtains have shorter rods than the other two curtains. The short rods hold the curtains at the entrance and exit of the machine.
The sketch below lists curtain positions 1 through 4.
2.3.4 Scrap Tray
CMA-44
LONG-NARROW
CURTAIN
23
1
SHORT-
WIDE
CURTAINS
DISH FLOW
DISHMACHINE FRONT VIEW
4
LONG-NARROW CURTAIN
MODEL CMA-44 Installation & Operation Manual Rev. 2 .15 10/18/07 Page
4
Getting Started

2.3. Receiving and Installation (Old Models)

When you receive your new CMA-44, complete the assembly by installing the scrap tray assembly with its overflow chute, the two wrapper shields and the curtain rods, which are shipped inside the machine. After the box has been removed from the machine, remove the left and right stainless steel wrapper shields and bolt them in place with the nuts and bolts provided. The wrapper shield with the extra curtain clamps mounts onto the dirty end of the machine. Next, mount the scrap tray assembly and overflow chute into position (see section
Assembly and Overflow Chute Installation).
All of the spray arms should be inserted and in place over the wash tank compartments. There are a total of seven curtains used in the CMA-44; two are long-narrow, four are long-wide
and one is short. The two long-narrow curtains and the one short curtain have shorter rods than the other four (long-wide) curtains. The short rods hold the curtains at the entrance and exit of the machine.
The sketch below lists curtain positions 1 through 6. In this case, it represents a flow from left-to­right. Reverse the sequence for right-to-left machines. If the dish flow is from left-to-right, the proper sequence for the placement of the curtains would be: long-narrow curtain in the first position; short curtain in the second position; two short-wide curtains in the third position; two short-wide curtains in the fourth position; and a long-narrow curtain in the sixth position. The only curtain change to reverse the flow of dishes is the short curtain at position #2 is changed to position #5.
2.3.4 Scrap Tray
LONG-NARROW
CURTAIN
SHORT CURTAIN
12
CMA-44
34
56
SHORT-
WIDE
CURTAINS
LONG-NARROW CURTAIN
DISH FLOW
DISHMACHINE FRONT VIEW
MODEL CMA-44 Installation & Operation Manual Rev. 2 .15 10/18/07 Page
5
Getting Started
2.3.1. Electrical*
A 3-phase 208-240 volt AC, 60 Hz dedicated circuit should be used to supply electrical energy to the CMA-44 dishwasher (see specification sheet page 2). Connect the wire that has the highest voltage (stinger lead) to the main contactor’s power terminal L2. Power lead wires (L1, L2 and L3) used for the CMA-44 at installation must comply with all local and State electrical codes.

2.3.2. Plumbing*

The water supply connection is made with a ½” hot water line to the water supply inlet on the top of the machine. The water supplied to the machine must be a minimum of 140° F for the CMA­44L and a minimum of 180° F for the CMA-44H.
NOTE: The High Temp machine (CMA-44H) comes with two water supply line connections. One
is for the final rinse at 180° F and the other is to fill the machine—this water will be heated to the appropriate temperature by the wash tank heater. (See specification sheet on page 2).
There are two 2” drain connections to be made. One connection is made at either end of the horizontal drainpipe coming from the wash tank and the other connection is made at the scrap tray drain. (Instructions for installing the scrap tray assembly are provided in section
Tray Assembly and Overflow Chute Installation
.) One of the ends of the horizontal drainpipe has a cap on it – simply move the cap to the other end if it’s currently on the end needed for the drain connection.

2.3.3. Installation Notes

1. Tables must slant into the machine for proper drainage (for each 28" of table length a drop of at least ¾” in table height is recommended). See
Figure 2.3.3a.
2.3.4 Scrap
FRESH WATER
L
S
E
L
B
A
T
TO SCRAP
ACCUMULATOR
PREWASH WASH/RINSE
DISH FLOW
Figure 2.3.3a
See also installation instructions on new style CMA-44 conveyor (Section 4. Customer Notice)
2. The scrap tray assembly is placed inside the machine for shipping. Follow the instructions provided in section
Installation
3.
Figure 2.3.3b shows the different settings available on the conveyor cam.
*
Electrical and plumbing connections must be made by a qualified person who will comply with all
available Federal, State, and Local Health, Electrical, Plumbing and Safety codes
to properly attach the scrap tray assembly to the dishmachine.
2.3.4 Scrap Tray Assembly and Overflow Chute
T
N
A
MODEL CMA-44 Installation & Operation Manual Rev. 2 .15 10/18/07 Page
6
Getting Started
(
(
)
)
)
P/N 13505.12
205 RACKS
CMA-44H)
242 RACKS
CMA-44L)
P/N 13505.10
205 RACKS (CMA-44H
OLD Models
B
A
167 RACKS (M-1
C
242 RACKS (CMA-44L
Figure 2.3.3b
4. On a 3-phase machine the water pump motors are also 3-phase a nd, depending on which terminal each phase is connected to, the motor can rotate in either direction. Check the direction of rotation by removing the dust cap on the back of the motor. The motors must turn clockwise looking at the shaft from the back of each motor. To change the direction of rotation, switch any two power lead wires at the motor.
5. The machine must be running to set the pressure regulator. While the machine is in the FINAL RINSE CYCLE, adjust the pressure regulator to 20 PSI. See section
3.1.3 Rinse Pressure Regulator for detailed instructions.
MODEL CMA-44 Installation & Operation Manual Rev. 2 .15 10/18/07 Page
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