NZQA Expiring unit standard
3250 version 6
Page 1 of 3
Title
Pre-commission and inspect potable hot and cold water systems
Level
4
Credits
5
Purpose
This unit standard is for people who work, or intend to work, in
the heating, ventilation and air conditioning sector of the
engineering industry. People credited with this unit standard
are able to: check installation, connections and cleanliness of
potable hot and cold water system; check system operation
and completion; and record and report on the system.
Classification
Mechanical Engineering > Heating, Ventilating, and Air
Conditioning
Available grade
Achieved
Entry information
Recommended skills
and knowledge
Open, however, it is recommended that people undertaking
assessment for this unit standard are already credited with Unit
3201, Integrate potable hot and cold water systems
components, or demonstrate equivalent knowledge and skills.
Explanatory notes
1
Work site documents include contracts, drawings and any installation documents for
the installed potable hot and cold water system.
2
All work site practices must meet recognised codes of practice and documented
safety procedures and safety plans (where these exceed code) for personal and work
site safety, and obligations required under current legislation.
3
A general knowledge of potable hot and cold water systems would be advantageous
to people undertaking assessment for this unit standard.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
3250 version 6
Page 2 of 3
Outcomes and evidence requirements
Outcome 1
Check installation, connections and cleanliness of potable hot and cold water system.
Evidence requirements
1.1
Installation of system is checked for compliance with work site documents.
1.2
Services supply is checked in accordance with work site documents.
Range
plumbing, electrical, water, gas.
1.3
Internal cleanliness after system flushing and purging meets work site
documents’ specifications.
1.4
Cleanliness of filters and strainers meets work site documents’ specifications.
1.5
Completion of system is verified against work site documents.
1.6
Fluid used to fill system meets work site documents’ specifications.
1.7
Air and contaminants removal meets work site documents’ specifications.
Outcome 2
Check system operation and completion.
Evidence requirements
2.1
Correct rotation of motors is verified in accordance with work site documents.
2.2
Circuit protective devices are verified as matching motor name plate details.
2.3
Control functions are verified against work site documents’ specifications.
2.4
Any non-completions of system are notified in accordance with company
policies and procedures.
2.5
Completion of system to work site documents is organised and followed up in
accordance with company policies and procedures.
2.6
The system is verified as being ready to run for commissioning in accordance
with company policies and procedures.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
3250 version 6
Page 3 of 3
Outcome 3
Record and report on the system.
Evidence requirements
3.1
System compliance with pre-commissioning requirements is recorded in
accordance with system documents.
3.2
Pre-commissioning report is completed and actioned in accordance with system
documents and company policies and procedures.
Replacement information
This unit standard, unit standard 3246, unit standard
3247, unit standard 3248, unit standard 3249, unit
standard 3251, unit standard 3252, and unit standard
3253 have been replaced by unit standard 26339.
This unit standard is expiring. Assessment against the standard must take place
before the expiry date set out below.
Status and review information
Expiring date
16 July 2010
Date version published
16 July 2010
Expiry date
31 December 2016
Accreditation and Moderation Action Plan (AMAP) reference
0013
This AMAP 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, or
an inter-institutional body with delegated authority for quality assurance, 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.
Consent requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP 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.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016