Ammonia Operator 3 / Technician One is for your lead ammonia operator and refrigeration supervisors. This class is developed for the understanding of ammonia engine room requirements and the complete maintenance aspects to them. This class is available in person and online. Each candidate for this class should have ammonia operator 1 & 2 credentials or the RETA CIRO certification. We call this certification

R-717 Operator 3 / Technician One

Most successful students have at least two years industrial ammonia refrigeration experience. Aptitudes needed for success are mathematics, observation, applied technology, locating information, and reading for information. The class in a person is a 4 day session and online you have six months to complete. Candidates whom score well on ARTS certification test provided at the end of the course tend to do well on the RETA CRST, TPC, and NUILPE certifications too. All ARTS certifications are active for a three window and carrier of those credentials must follow all company and regulator procedures.

The R-717 Operator 3 / Technician One course entails a copy of the latest edition industrial ammonia refrigeration manuals hand selected by ARTS. These manuals are for the student to keep and reference not only during the class but their entire career. Topics to be covered are as follows:

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Technician One

RETA CRST Guide
Cascade Systems
- Overfeed/Brine
- Compression
- Combination
Electrical
- Safety
- Calibrations
- 4-20ma
- Analog to Digital Converter
- VFD’s
- Affinity Laws
- Motor Connections
- Ohm’s Law
Mechanical Integrity
- CMMS(s)
- ITM
- Compliance Schedule(s)
- Frequency of Inspections and Tests
  - Daily
  - Weekly
  - Monthly
  - Quarterly
  - Semi-annual
  - Annual
  - Bi-annual
  - Tri-annual
  - Five Years
  - Ten Years
- Inspection and Testing Required Documentation
- History of Deficiencies
- Record Keeping Requirements
- Refrigeration System Records
- MIEL
- SSEL
- Inspection Requirements
- Testing Requirements
- Maintenance Requirements
- ITM examples
Equipment ITM Requirements
- ITM – Screw Compressors
- ITM – Reciprocating Compressors
- ITM – Rotary Vane Compressors
- Test Safety Systems
  - Screw
  - Recip
  - Vane
- Permitted Test Methods
- Non Permitted Test Methods
- ITM – Liquid Pumps
- ITM- Condensers
- ITM – Evaporators
- ITM – Pressure Vessels
  - NDT – Pressure Vessels
  - Corrosion Pressure Vessels
  - Corrosion Allowance Pressure Vessels
    - 25%
    - 50%
    - 75%
  - Suitable for Continued Use
  - Re-Rate Pressure Vessel
  - Repair Pressure Vessel
  - Retire Pressure Vessel
  - Replace Pressure Vessel
- ITM – Piping
  - Piping Damage
  - Piping Corrosion
  - Preparing Pipe
  - Pitting in Piping
  - Insulated Piping
  - Internal Pipe Loss
  - NDT Techniches
- ITM – Hoses – Ammonia Use
- ITM – Hoses – Non Ammonia Use
- ITM – Valves
ITM Safety Systems
- Ventilation System
- Lights
- Alarms
- Equipment E- Stops
- Intake Luevers
- Ammonia Detection System
- Shunt Trip
- All switches
- Emergency Shutdown Switches for Machinery Room
- Computer Controlled Processors
- Eyewash Showers
- High Level Cut-Outs
- Low Level Cut-Outs
- High Discharge Pressure Cut-Outs
- Low Discharge Pressure Cut-Outs
- Low Suction Pressure Cut-Outs
- High Oil Pressure Cut-Outs
- High Discharge Temperature Cut-Outs
- Minimum Oil Pressure Differential Cut-Out
- Amp Factor Protection Cut-Out
- Gas Defrost System Steps and Timing
- Low Oil Temp Cut-Out
- High Oil Temp Cut-Out
- Illumination
- Camera System
- Fire Suppression Systems
- ITM – Relief Valves
  - Frequencies
  - Replacement Requirements for Discharge to atmosphere
  - Service Life of a PRV
  - Replacement requirements when discharged
  - Bench Testing
  - Hydrostatics
- ITM – Purgers
- ITM – Secondary Coolants
Safety Checklists (Originally Bulletin 109 Forms)
- Compressors
- Condensers
- Evaporators
- Pumps
- Pipes
- Valves
- Vessels
- Purgers
Water Purity Inspections
- Detection
- Sampling Locations
- Sampling Procedures
- Removal of Water
Pressure Shock
- Hydraulic Shock
- Trapped Liquid
- Sudden Liquid Deceleration
- Vapor-Propelled Liquid
- Hot Gas
General Engine Room Requirements
- Anhydrous Ammonia Specifications
- Volume Calculations for Determining Concentration of Ammonia Release
- Use of Ammonia with Secondary Coolants
- System Design Pressure
- System Design Temperature
- Materials of Construction
- Purging
- Oil Management
- Insulation
- Foundations
  - Piping
  - Tubing
  - Equipment Supports
- Service Provisions
- Testing
- Signage
  - Labels
  - Pipe Marking
  - Wind Indicators
- Emergency Shutdown Documentation
- Equipment Enclosures
- General Safety Requirements
Engine Room / Machinery Room Requirements
- Machinery Room Construction
- Machinery Room Access and Egress
- Machinery Room and Combustible Materials
- Machinery Room Open Flames and Hot Surfaces
- Machinery Room Piping
- Machinery Room Eyewash/Safety Shower
- Machinery Room Electrical Safety
- Machinery Room Drains
- Machinery Room Entrances and Exits
- Machinery Room Lighting
- Machinery Room Emergency Control Switches
- Machinery Room Ammonia Detection
- Machinery Room Ammonia Alarms
- Machinery Room Ventilation
- Machinery Room Signage
- Requirements of Non-Machinery Room Spaces
Equipment Requirements
- Compressors
  - Design
  - Procedures
  - Testing
  - Equipment Identification
  - Installation
- Pumps
  - Design
  - Procedures
  - Testing
  - Equipment Identification
  - Installation
  - Ammonia Removal
- Condensers
  - Design
    - Air Cooled
    - Evaporative
    - Shell and Tube
    - Plate
    - Double Pipe
- Evaporators
  - Design
    - Forced Air
    - Shell and Tube
    - Plate
    - Scraped
    - Jacketed Vessels
- Pressure Vessels
  - Design
  - Procedures
  - Testing
  - Identification
  - Nameplate
  - Installation Considerations
- Piping
  - Design
    - Pipe
    - Tubing
    - Fittings
    - Flanges
  - Valves
  - Strainers
  - Hangers
  - Supports
  - Isolation
  - Location of Piping
Overpressure Protection
- Pressure Relief Devices
- Pressure Relief Protection
- Pressure Relief Piping
- Pressure Relief Discharge
- Hydro-static Over pressure Protection
Instrumentation and Controls
- General
- Level Indicators
- Electric Sensors
- Pneumatic Sensors
Ammonia Detection and Alarm
- Power for Detection and Alarm
- Testing
- Detector Placement
- Alarms
- Signage
- Detection and Alarm Levels