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Evidence Guide: AHCIRG410 - Select and manage pumping systems for irrigation

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

 

AHCIRG410 - Select and manage pumping systems for irrigation

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

Identify irrigation system requirements from the irrigation design

  1. Identify the components of an irrigation pumping system
  2. Determine the water source and height of pull for water into the system
  3. Determine the water output for irrigation
  4. Calculate the total friction loss of irrigation components
Identify the components of an irrigation pumping system

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine the water source and height of pull for water into the system

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine the water output for irrigation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate the total friction loss of irrigation components

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select pump according to type, installation, range of flow rates, operating head and delivery distance

  1. Select the basic type of pump based on the pump task and placement and the power source
  2. Calculate the total operating head required
  3. Calculate the required discharge for the pump based on the irrigation output required and friction losses in the system
  4. Determine the speed and power requirements of the pump motor
  5. Determine the limiting suction lift of the pump
  6. Interpret pump performance curves when selecting an efficient irrigation pump
  7. Determine the size of the impeller from the pump curve
Select the basic type of pump based on the pump task and placement and the power source

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate the total operating head required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate the required discharge for the pump based on the irrigation output required and friction losses in the system

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine the speed and power requirements of the pump motor

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine the limiting suction lift of the pump

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Interpret pump performance curves when selecting an efficient irrigation pump

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine the size of the impeller from the pump curve

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Supervise installation of pumps

  1. Ensure pump is sited as close as possible to water source and is level
  2. Verify pump is properly anchored and connections are airtight
  3. Confirm pump and motor connection are correctly aligned and motor is ventilated
  4. Verify filters and valves are correctly fitted and orientated
  5. Check pump is connected to the irrigation controller if required
Ensure pump is sited as close as possible to water source and is level

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Verify pump is properly anchored and connections are airtight

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Confirm pump and motor connection are correctly aligned and motor is ventilated

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Verify filters and valves are correctly fitted and orientated

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Check pump is connected to the irrigation controller if required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Oversee commissioning and testing of pumping system

  1. Develop pre-start and start up procedures
  2. Check delivery performance and verify power usage and water output against requirements and pump specifications
  3. Ensure pumping system is checked for leakages and cavitation
  4. Determine that pumping system is operating effectively
Develop pre-start and start up procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Check delivery performance and verify power usage and water output against requirements and pump specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Ensure pumping system is checked for leakages and cavitation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine that pumping system is operating effectively

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Develop maintenance procedures for the pumping system

  1. Develop routine maintenance procedures to rectify the effects of normal wear
  2. Develop periodic inspection checklists to assist in maintenance scheduling
  3. Carry out pump overhaul or repairs
  4. Keep pump maintenance records, including details of the pump and all pumping system components for ordering
Develop routine maintenance procedures to rectify the effects of normal wear

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Develop periodic inspection checklists to assist in maintenance scheduling

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out pump overhaul or repairs

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Keep pump maintenance records, including details of the pump and all pumping system components for ordering

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out troubleshooting on pumping systems

  1. Investigate lack of discharge or pressure and change settings or components
  2. Investigate loss of water suction and make alterations to placement or fix leakages
  3. Investigate cavitation in pumps and change settings or components
  4. Investigate excessive power consumption and review design and pump selection and check for mechanical defects
Investigate lack of discharge or pressure and change settings or components

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Investigate loss of water suction and make alterations to placement or fix leakages

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Investigate cavitation in pumps and change settings or components

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Investigate excessive power consumption and review design and pump selection and check for mechanical defects

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

Element

Performance criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Identify irrigation system requirements from the irrigation design

1.1 Identify the components of an irrigation pumping system

1.2 Determine the water source and height of pull for water into the system

1.3 Determine the water output for irrigation

1.4 Calculate the total friction loss of irrigation components

2. Select pump according to type, installation, range of flow rates, operating head and delivery distance

2.1 Select the basic type of pump based on the pump task and placement and the power source

2.2 Calculate the total operating head required

2.3 Calculate the required discharge for the pump based on the irrigation output required and friction losses in the system

2.4 Determine the speed and power requirements of the pump motor

2.5 Determine the limiting suction lift of the pump

2.6 Interpret pump performance curves when selecting an efficient irrigation pump

2.7 Determine the size of the impeller from the pump curve

3. Supervise installation of pumps

3.1 Ensure pump is sited as close as possible to water source and is level

3.2 Verify pump is properly anchored and connections are airtight

3.3 Confirm pump and motor connection are correctly aligned and motor is ventilated

3.4 Verify filters and valves are correctly fitted and orientated

3.5 Check pump is connected to the irrigation controller if required

4. Oversee commissioning and testing of pumping system

4.1 Develop pre-start and start up procedures

4.2 Check delivery performance and verify power usage and water output against requirements and pump specifications

4.3 Ensure pumping system is checked for leakages and cavitation

4.4 Determine that pumping system is operating effectively

5. Develop maintenance procedures for the pumping system

5.1 Develop routine maintenance procedures to rectify the effects of normal wear

5.2 Develop periodic inspection checklists to assist in maintenance scheduling

5.3 Carry out pump overhaul or repairs

5.4 Keep pump maintenance records, including details of the pump and all pumping system components for ordering

6. Carry out troubleshooting on pumping systems

6.1 Investigate lack of discharge or pressure and change settings or components

6.2 Investigate loss of water suction and make alterations to placement or fix leakages

6.3 Investigate cavitation in pumps and change settings or components

6.4 Investigate excessive power consumption and review design and pump selection and check for mechanical defects

Required Skills and Knowledge

Element

Performance criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Identify irrigation system requirements from the irrigation design

1.1 Identify the components of an irrigation pumping system

1.2 Determine the water source and height of pull for water into the system

1.3 Determine the water output for irrigation

1.4 Calculate the total friction loss of irrigation components

2. Select pump according to type, installation, range of flow rates, operating head and delivery distance

2.1 Select the basic type of pump based on the pump task and placement and the power source

2.2 Calculate the total operating head required

2.3 Calculate the required discharge for the pump based on the irrigation output required and friction losses in the system

2.4 Determine the speed and power requirements of the pump motor

2.5 Determine the limiting suction lift of the pump

2.6 Interpret pump performance curves when selecting an efficient irrigation pump

2.7 Determine the size of the impeller from the pump curve

3. Supervise installation of pumps

3.1 Ensure pump is sited as close as possible to water source and is level

3.2 Verify pump is properly anchored and connections are airtight

3.3 Confirm pump and motor connection are correctly aligned and motor is ventilated

3.4 Verify filters and valves are correctly fitted and orientated

3.5 Check pump is connected to the irrigation controller if required

4. Oversee commissioning and testing of pumping system

4.1 Develop pre-start and start up procedures

4.2 Check delivery performance and verify power usage and water output against requirements and pump specifications

4.3 Ensure pumping system is checked for leakages and cavitation

4.4 Determine that pumping system is operating effectively

5. Develop maintenance procedures for the pumping system

5.1 Develop routine maintenance procedures to rectify the effects of normal wear

5.2 Develop periodic inspection checklists to assist in maintenance scheduling

5.3 Carry out pump overhaul or repairs

5.4 Keep pump maintenance records, including details of the pump and all pumping system components for ordering

6. Carry out troubleshooting on pumping systems

6.1 Investigate lack of discharge or pressure and change settings or components

6.2 Investigate loss of water suction and make alterations to placement or fix leakages

6.3 Investigate cavitation in pumps and change settings or components

6.4 Investigate excessive power consumption and review design and pump selection and check for mechanical defects

The candidate must be assessed on their ability to integrate and apply the performance requirements of this unit in a workplace setting.

The candidate must provide evidence that they can:

identify irrigation system requirements from the irrigation design

select pump according to type, installation, range of flow rates, operating head and delivery distance

supervise installation of pumps

develop maintenance procedures for the pumping system

monitor the performance of pumps, valves and filters

carry out troubleshooting on pumping systems

calculate pumping requirements and pressure loss due to irrigation components

identify adverse environmental impacts of irrigation pumping activities and take appropriate remedial action

The candidate must demonstrate knowledge of:

advantages and disadvantages of each pump type

application of mechanical, hydraulic and electrical principles

automatic pump switches including:

flow switches

irrigation controllers

pressure switches

timers

cavitation - cause and effect

discharge and flow rates

environmental procedures for installing and maintaining irrigation pumping systems

installation factors including:

adequate space, head room, ventilation and lighting

correct alignment procedures of pump and motor shafts with direct coupled units

provision for adjustment and ease of dismantling

levelling and alignment processes

overhaul or repair operations

properties of water including pressure and flow rates

pump components and their principles of operation

pump efficiency, performance and pressure testing

pump positioning (driver alignment and suction length)

routine preventative maintenance

selection factors for pumps including:

source of water and lift

the required pumping flow rate and pressure

the total dynamic head

the total suction head

sources of information and the processes for the calculation of material requirements and flow rates

statutory and authority requirements related to the installation of commissioning of irrigation pumping systems

types of impellers and their use

types of pumps and application in irrigation including:

centrifugal

propeller

submersible

vertical turbine

types of pumps suitable as booster and floating pumps

types of valves

work health and safety legislation

Range Statement