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Evidence Guide: UEERA0021 - Design control systems for refrigeration or heating, ventilation and air conditioning systems

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

UEERA0021 - Design control systems for refrigeration or heating, ventilation and air conditioning systems

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare to design control systems for HVAC/R

  1. WHS/OHS requirements and workplace procedures for a given work area are identified, obtained and applied
WHS/OHS requirements and workplace procedures for a given work area are identified, obtained and applied

Completed
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Scope of the HVAC/R system is determined from design specifications and/or in consultations with relevant person/s

Completed
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Safety and systems are identified, obtained and applied in accordance with relevant industry standards

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Work supervisor and/or customer/s are consulted to determine functions and parameters of the system required in accordance with design specifications and workplace documentation

Completed
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Design development work is planned in accordance with workplace procedures for timelines in consultation with others involved

Completed
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Design control systems for HVAC/R

  1. WHS/OHS risk control measures and workplace procedures for carrying out the work are followed
WHS/OHS risk control measures and workplace procedures for carrying out the work are followed

Completed
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Relevant control system components are applied to developing the system design in accordance with workplace procedures and relevant industry standards

Completed
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Safety, functionality and budgetary considerations are incorporated into the design

Completed
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Control equipment required is selected in accordance with design specifications and workplace procedures

Completed
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Location of components are documented in accordance with workplace procedures and operation of system functions

Completed
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Control system design draft is checked for compliance in accordance with the design brief and relevant industry standards

Completed
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Control system design is documented and submitted to relevant person/s for approval

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Unplanned events are dealt with in accordance with problem-solving techniques and workplace procedures

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Obtain approval for control systems for HVAC/R systems design

  1. Control system design is presented and explained to customer and/or relevant person/s
Control system design is presented and explained to customer and/or relevant person/s

Completed
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Requests for alterations to the design are negotiated with relevant person/s in accordance with workplace procedures

Completed
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Final design is documented and approval obtained from relevant person/s

Completed
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Quality of work is monitored in accordance with workplace procedures and relevant industry standards

Completed
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Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Required Skills and Knowledge

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least one occasion and include:

understanding required operating functions and parameters from the design specification

developing the design within the safety, regulatory and functional requirements and budget limitations

documenting and presenting design effectively

successfully negotiating design alteration requests

obtaining approval for final design

dealing with unplanned events

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including using risk control measures

designing control systems for heating ventilation and air conditioning/refrigeration (HVAC/R) systems

preparing to design control systems for HVAC/R.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

HVAC/R design control systems, system operating requirements, integration of electrical, electronic, pneumatic and digital controls, safe working practices and relevant standards, codes and regulations, including:

control systems:

control terminology

control system characteristics

control system diagrams and symbols

types of control equipment:

electrical:

classification of circuits

two position control

floating control

sensors

controllers

flow control devices

control systems diagrams

electronic:

operating principles

sensors

controllers

control system diagrams

pneumatic:

control fundamentals:

pneumatic control terminology

definitions

control basics:

air supply

pilot bleed system

signal amplifier

sensing elements

relays and switches

air supply system:

air drying methods

pressure regulating valves

pressure reducing valves

system controllers:

thermostats

sensors

actuators

dampers

system control configuration:

sequence control

limit control

changeover control

compensated control

recycling control

pneumatic – electric control

control systems

digital control systems:

computer-based control fundamentals

definitions

principles

controller configuration:

equipment

zone level controllers

system level controllers

controller software:

operating software

application software

controller programming:

system diagrams

control diagrams

configuration

programming

initialisation

EMS and BMS

supervisory control and data acquisition (SCADA) system

lan and Bacnet

applications:

refrigeration systems

HVAC systems:

air handling system controls

ventilation

heating

building airflow system control

airflow control

single and multi-zones

chiller boiler and distribution system

logic analysis

energy management

asset management

life cycle

supervisory:

introduction building management

remote building control interface and modem

problem-solving techniques

relevant industry standards, codes of practice, regulations and industry practices

relevant job safety assessments or risk mitigation processes

relevant manufacturer specifications

relevant WHS/OHS legislated requirements

relevant workplace budget, quality, policies and procedures

relevant workplace documentation.

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.

Designing control systems for HVAC/R must include at least the following:

two different HVAC/R systems, including one of the following:

condenser

compressor

evaporator

associated components and controls