NZQA Expiring unit standard
17605 version 6
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Title
Demonstrate knowledge of air conditioning systems on energy and
chemical plant
Level
2
Credits
8
Purpose
People credited with this unit standard are able to demonstrate
knowledge of air conditioning systems and configurations, and
explain the operation of air conditioning systems, on energy
and chemical plant.
Classification
Energy and Chemical Plant > Operation of Energy and
Chemical Plant
Available grade
Achieved
Explanatory notes
1
Definitions
Occupancy classes in this unit standard refer to the type of environment and the
users that are being serviced by the system.
Plant refers to the plant or unit at which the person is employed.
2
Performance of the elements of this unit standard must comply with the following
enactments: Health and Safety in Employment Act 1992; Resource Management Act
1991; and Hazardous Substances and New Organisms Act 1996.
3
The Environmental Risk Management Authority (ERMA) is responsible for assessing
and approving hazardous substances and, where appropriate, setting controls on the
way the substance is used. Any questions relating to the provisions for hazardous
substances should be directed to ERMA New Zealand, telephone 04 916 2426; or
EXITO, telephone 03 964 4710.
4
This unit standard is for occupations such as plant operators and maintenance
personnel whose role can include all or some of the following: steam generation,
water treatment, hydrocarbon processing, electrical generation, refrigeration and air
conditioning in industries including petrochemical, power generation, dairy
processing, meat processing, timber processing and other manufacturing industries.
This unit standard is
expiring
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of air conditioning systems and configurations on energy and
chemical plant.
Evidence requirements
New Zealand Industry Training Organisation
SSB Code 101541
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
1.1
Air conditioning systems are described in terms of type and occupancy class,
and examples are provided for each occupancy class.
Range
1.2
systems – window, residential central;
heat pumps – air-to-air, water-to-air.
Central air conditioning systems are explained in terms of configurations.
Range
1.5
configurations – single-zone constant volume, multi-zone constant
volume, single-zone variable volume.
Unitary air conditioning systems and heat pumps are described in terms of
mode of operation, and the advantages and disadvantages of each are
identified.
Range
1.4
type – unitary, central, combined;
occupancy class – residential, institutional, commercial, industrial,
public assembly, mixed occupancy.
The unitary air conditioning system is explained in terms of configurations.
Range
1.3
17605 version 6
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configurations – single-zone duct, multi-zone duct, dual duct,
terminal reheat, variable air volume, air-hydronic systems, allhydronic systems.
The combined air conditioning system is defined in terms of its operation.
Outcome 2
Explain the operation of air conditioning systems on energy and chemical plant.
This unit standard is
Psychrometry and its relationship with humidity are explained in relation to the
operation of air conditioning
systems for energy and chemical plant.
expiring
Evidence requirements
2.1
Range
2.2
dry bulb temperature, wet bulb temperature, dew point.
The term and principle of humidification are explained in relation to the
operation of air conditioning systems for energy and chemical plant.
Range
environmental conditioning, human comfort, process control,
material storage, static electricity.
New Zealand Industry Training Organisation
SSB Code 101541
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
2.3
The operation of air conditioning systems is described in terms of methods for
controlling humidity for energy and chemical plant.
methods – water evaporation, steam injection, drying.
Range
2.4
The operation of air conditioning systems for energy and chemical plant is
described in terms of humidifiers.
Range
2.5
17605 version 6
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air washer;
humidifiers – pan, atomising, non-ducted residential, central air
system industrial, wetted element.
Air conditioning system humidity controls are identified, and air filtration is
explained in terms of controlling contaminants for energy and chemical plant.
controls – mechanical, electronic;
contaminants – solid particles, liquid particles, vapours, gases,
living organisms.
Range
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
25 November 2000
31 December 2014
Revision
2
24 July 2002
31 December 2014
Review
3
27 June 2005
31 December 2014
Rollover and
Revision
4
25 July 2006
Review
Review
31 December 2014
This
unit
is2016
5
22
May 2009 standard
31 December
6
24 October 2014
31 December 2016
expiring
Consent and Moderation Requirements (CMR) reference
0079
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
New Zealand Industry Training Organisation
SSB Code 101541
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
17605 version 6
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Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
This unit standard is
expiring
New Zealand Industry Training Organisation
SSB Code 101541
 New Zealand Qualifications Authority 2016