Couse Content (Modules)

Unit 1

Identify basic systems, terms, principles, units and how these relate to theory and thermodynamics of vapour compression cycles and refrigerants.

Unit 2

The environmental impact of refrigerants and corresponding environmental regulations

Unit 3

Carry out checks including: -

• Pressure drop test

• Pressure strength test

• System evacuation

• Record keeping

Unit 4

Identify stationary refrigerant, air conditioning and heat-pump system components, functions, and leakage risk

Unit 5

Carry out a component installation, putting into operation and maintenance of reciprocating, screw and scroll compressors, single and two stage.

Unit 6

Carry out a component installation, putting into operation and maintenance of air-cooled and water-cooled condensers

Unit 7

Carry out a component installation, putting into operation and maintenance of air and water-based evaporators.

Unit 8

Carry out a component installation, putting into operation and servicing of Thermostatic Expansion Valves (TEV) and other components.

Unit 9

Piping: building a leak-tight piping system in a refrigeration installation

Unit 10

Know the relevant alternative technologies to replace or to reduce the use of fluorinated greenhouse gases and about their safe handling

Unit 11

Understand the operation & function of the following components

• Valves (ball valves, diaphragms, globe valves, relief valves)

• Temperature and pressure controls

• Sight glasses and moisture indicators

• Defrost controls

• System protectors

• Measuring devices as manifold thermometer

• Oil control systems

• Receivers

• Liquid and Oil separators

Unit 12

Understand and carryout Direct Leak Checking

Unit 13

Environment-friendly handling of the system and refrigerant during installation, maintenance, servicing, or recovery (refrigerant quantity more than 5 Tons equivalency of CO”)

Unit 14

Control Adjustment; reciprocating, screw and scroll compressors, single and two-stage

• Adjust the safety and control switches

• Adjust the suction and discharge valves

• Check the oil return system

Unit 15

Control Adjustment: air cooled and water-cooled condensers

• Adjust the safety and control switches

• Adjust discharge Pressure control

• Check the discharge and liquid lines

• Purge non-condensable gases out of the condenser using a refrigeration purging device

Unit 16

Control Adjustment: air and water-based evaporators

• Adjust and evaporating pressure control of the evaporator

• Adjust the safety and control switches

• Check the hot gas defrost pipeline

• Adjust evaporation pressure regulation valve

Unit 17

Control Adjustment: Thermostatic Expansion Valves (TEV) and other components

• Install Valves in correct position

• Adjust a mechanical/electronic TEV

• Adjust mechanical and electronic thermostats

• Adjust a pressure-regulated valve

• Adjust mechanical and electronic pressure limiters

• Check the functioning of an oil separator

• Check the condition of a filter dryer

Duration

5 day Classroom

100 hours to include, theory, classroom & self-study

Certification

NFQ Level 5 QQI (Quality and Qualifications Ireland) Special Purpose Certificate in F-gas Handling in Large RACHPT&T Systems Category (10 Credits)