Summary of Contents for Nyle MD Series
- Page 1 MD-SERIES Modular Heat Pump Dehydrator USER MANUAL w w w . n y l e d e h y d r a t o r s . c o m...
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Page 2: Table Of Contents
Table of Contents Introduction ....................1 General Information . - Page 3 Lubricating Motors ..................16 Refrigerant System Information .
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Page 4: Introduction
Please note that only trained and qualified service personnel should perform installation, repairs, or service on Nyle dehydrators. When performing installation, repair, or service on the unit, observe precautions in the manual, tags, and labels attached to the unit. Follow all other safety precautions that may apply. -
Page 5: Model Information
Model Information Dimensions ( ft +in ) ( ft +in ) ( ft +in ) MD-110 13’ 4” 15’ 0” 12’ 0” MD-120 13’ 4” 29’ 0” 12’ 0” MD-130 13’ 4” 43’ 0” 12’ 0” MD-140 13’ 4” 57’ 0” 12’... -
Page 6: Refrigeration Diagram
TITLE FD60 Piping Diagram - With External Condenser CUSTOMER 12 Stevens Road Brewer, Maine 04412 Tel: 1-207-989-4335 Int'l: 1-800-777-6953 Fax: 1-207-989-1101 Email: info@nyle.com DRAWN BY DWG FILE NAME JAMES D'AMICO 2016-05-09 - FD60 Piping Diagram - With External Condenser TITLE... -
Page 7: Pre-Installation
Pre-Installation Installation Chamber Installation IMPORTANT: Please read this entire manual before installation. Be sure to follow all installation steps. Failure to conform to these instructions may decrease dehydrator performance and cause Follow the chamber manufacturer’s instructions severe injury or death. Only qualified, licensed persons should install the equipment and electrical supply. -
Page 8: Control Screen Navigation
Control Screen Navigation Home Screen Alarm Screen Trend Screen Equipment Screen Information Screen Schedule Screen - 5 -... -
Page 9: Control Screen Overview
Control Screen Overview Home Screen The home screen provides basic process information, including: LotID: Indicates the name of the cycle that is running. This is also the name of the log file that will be created for each batch. Status: Indicates the status of the dehydrator. - Page 10 Navigation Menu Bar: “Overview”: Changes the display to the Overview screen. “Trends”: Changes the display to the Trend Screen. “Schedule”: Changes the display to the Schedule Screen. “Zone 1”: Changes the display to the Equipment Screen for that zone. “Information” button: Changes the display to the Information Screen.
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Page 11: Schedule Screen
Schedule Screen The schedule screen allows the user to manage dryer scheduling. Further details concerning schedule operation are included in the schedule management portion of the manual. “Step” column: Identifies the step number. “Step Mode” column: Indicates the type of step mode selected for the particular step number. “Step Time”... - Page 12 Trend Screen The trend screen lets the user view datapoints recorded in the historian. The datapoints shown on the graph can be viewed and edited at the bottom of the trend. Other datapoints can be added by selecting the tag icon in the top left. This will open a menu where you can browse the datapoints and add them to the trend.
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Page 13: Alarm Screen
Alarm Screen The alarm screen allows the user to view both current active alarm conditions, and the history of previous alarms. Alarms will display red if they are active, and they will show as blue when they have been cleared. To remove the blue alarm history, you can select the alarm and acknowledge it to clear it from that alarm table. -
Page 14: Schedule Management
Schedule Management Schedule Operation The schedule is equipped with 20 Steps, and 4 step modes. The schedule is used to automatically change setpoints depending on the step number. To enable a schedule, fill out the schedule as desired, then start the dehydrator with the start button on the bottom right, then you can press the enable button on the left to start the schedule. -
Page 15: Schedule Monitoring
“Fan Speed %” column: Indicates the percentage of fan speed (25-100%) selected for each step number. “Fan Mode” column: Indicates the fan mode. Off: Disables the fans for the entirety of the step Auto: fans automatically reverse at set time intervals FWD: Fans run in the forward direction only REV:... -
Page 16: Drying Theory
USB drive process, ultimately affecting the drying time in the opto22 groov epic controller. If an email achieved by your Nyle dehydrator. isn’t sent because of an internet outage, the For moisture to be removed from the air within data logs can be retrieved from the USB drive. -
Page 17: Maintenance
Maintenance Monthly • Clean and replace filter • Grease cart bearings General Maintenance • Inspect: Fans & Blowers, V-belts, bearings shafts, motor covers, blower assemblies The MD-Series is designed for continuous • Inspect Vent/damper system, linkages, duty with little maintenance. However, when a actuators problem does arise, prompt repair will ensure a long life for the machine. -
Page 18: Unit/Chamber Inspection
Coil Cleaning NOTE: These recommendations apply to all Nyle Systems DH- based drying units and may be considered a part of standard maintenance procedures for the trouble-free operation of the system. -
Page 19: Blower System Maintenance
Blower System Maintenance Electrical Panel Inspection This system should be serviced every 4-6 Before opening any electrical panel, be sure months. the electrical disconnect is in the off position and follow your specific company’s lockout The system should be checked for the following: procedures. -
Page 20: Refrigerant System Information
Conditions Schedule system with its own lubrication oil supply. 1/8 to 7 1/2 5 years Nyle uses only the best trade practices when Minimal Use assembling these systems. The system should 10 - 40 3 years 5,000 Hrs or less give years of trouble-free service. -
Page 21: Refrigerant Charging
4. At low temperatures, prevent excessive to modulate slightly. liquid flood back. At the maximum operating temperature (160ºF, Nyle suggests that the refrigerant charge be 32% RH), the following approximate readings adjusted at maximum operating conditions will be noted. (160ºF, 32% RH). Do Not allow the system to exceed the maximum temperature limits. -
Page 22: Unbalanced 3 Phase Supply
An increase in suction gas temperature is Replacement Procedure usually related to improper refrigerant charge, improper damper operation, airflow problems, When contacting Nyle for service or or, occasionally, a compressor or expansion replacement parts, refer to the model and valve malfunction. -
Page 23: Troubleshooting
Troubleshooting 3. Check for chattering or humming in the contractor or relays due to low voltage or a defective holding coil. Replace the component. Compressor Will Not Run 4. Check for abnormally high discharge pressures. 350 psi + (see page 30) 1. -
Page 24: Troubleshooting Matrix
Troubleshooting Matrix Issue: Cycle is running too long; product is not drying; RH is not dropping as expected Potential Cause Secondary Cause Root Cause Solution User RH setpoint is Input error Lower RH setpoint satisfied (in or out of schedule) Load size is larger Moisture removal System sizing... - Page 25 Potential Cause Secondary Cause Root Cause Solution Compressor cycling (runs DLP exceeding high- pressure User temp setpoint exceeds Reduce user temp setpoint briefly then shuts back safety (Continued) performance envelope down) (Continued) System overcharge Reduce refrigerant charge External condenser fan not running Verify control and power wiring properly integrity to external condenser fan...
- Page 26 Issue: Process is running >5° over temperature setpoint; cool down is taking too long Potential Cause Secondary Cause Root Cause Solution Vents not opening Intake or exhaust vent damper Verify control and power wiring actuator not opening integrity for vent actuators Verify control logic integrity for vents (open when temp >2°...
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Page 27: Alarm Codes
Alarm Codes Alarm Name Root Cause Solution Estop Pressed An estop button is actively pressed Reset estop button Estop Lockout An estop button was pressed. Reset physical estop button and press the “Estop reset” button on HMI. Equipment is locked out. Probe Fault A digital Temperature and Humidity Inspect probe and ethernet cable for damage. -
Page 28: Limited Warranty
Shipping the defective or replacement parts. Nyle makes no warranty as to the fitness of the equipment for a particular use and shall not be liable for any direct, indirect, or consequential damages in conjunction with this contract and/or the use of its equipment. -
Page 29: Service Log
Service Log Issue Description Date Servicer... - Page 30 Service Log Issue Description Date Servicer...
- Page 31 Service Log Issue Description Date Servicer...
- Page 32 © Nyle Dehydrators MD-Series User Manual Rev 2025.01 CONTACT US: OUR LOCATION: (800) 777-6953 12 Stevens Road dehydrators@nyle.com Brewer, Maine 04412 © Nyle Dehydrators www.nyledehydrators.com Dehydrator Catalog Rev 2024.04...
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