Holman MK21025 User manual

Instruction Manual
Note: Flush Misting System thoroughly before
attaching misting nozzles to prevent blockages.
Product Code: MK21025
Scan the QR Code on the right to see more information on
the Misting System - including a product guide video.
Misting Kit
25m with Misting Timer

Table of Contents Outdoor Cooling Misting System
1. Outdoor Cooling Misting System..............p1
2. The Way It Works.......................................p1
3. Glossary......................................................p2
4. Misting System Assembly & Installation...p3
A. Plan Your Misting Installation...................p3
B. Water Supply.............................................p3
C. Positioning Misting Jets...........................p4
D. Installing The Fittings...............................p5
E. Installing The Misting System...............p6-7
F. Flushing The System................................p8
G. Water Filter...............................................p8
H. Auto Drain Valve.......................................p8
5. Maintenance Of Your Misting System.....p9
6. Troubleshooting.......................................p9
7. Warranty....................................Back Page
PLEASE READ INSTRUCTION MANUAL BEFORE USE
The Holman Misting system features 10mm diameter high pressure
tubing with “compression ttings” that are made to match this tubing.
The compression ttings t the pipe very precisely and simply push
over the pipe and are very easy to assemble. No clamps are required.
Please note that your misting system can be expanded with more
Holman misting parts. These are available at your Holman stockist.
The Way It Works
The misting system cools the air temperature by the evaporation of the
ne particles of water emitted by the misting nozzles. The process of
evaporation absorbs heat from the air and cools the area.
The misting nozzle emits very small amounts of water. It also breaks the
water into very small droplets or a “mist”.
In hot conditions, the small water droplets evaporate almost
instantaneously. In cooler or humid conditions the evaporation rate
may be slower.
Generally, you will not want to run the misting systems continuously. If
you do, the general environment may become damp and unpleasant.
The simple way to solve this problem is to use a Holman Misting Timer.
This timer can be programmed to suit the environmental conditions of
the day. You can easily adjust the “ON” time (in seconds) and the “OFF”
time (in seconds or minutes) and the misting system will automatically
turn on and o as you desire.
1

32
Glossary Misting System Assembly & Installation
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
PACKAGE CONTENTS
1. 25m Misting Hose
2. 24× Misting Tees with Brass Nozzle
3. 5× Misting Elbows with Brass Nozzle
4. 1× Misting Tee
5. 1× Misting Elbow
6. 1× Universal Tap Adaptor
7. 2× Brass Nozzle
8. 1× Misting Filter
9. 6× Hose Joiners
10. 5× Tee Joiners
11. 5× Elbow Joiners
12. 1× Auto Drain Valve
13. 35× Hose Clamps
14. 1× Pipe Cutter
HINT: If you want to easily maintain the use of the garden
tap for other uses, install a Holman 2 way or 4 way manifold and t the misting
system to one outlet.
8
1
6
Include this
for 25mm taps
A. Plan Your Misting Installation
Take 5 minutes to work out how you will run the misting pipe-work and where
you should position the misting jets, where your water source will come from
and where the supply pipeline will run.
The general idea is to position the jets to create a “mist curtain” surrounding
your outdoor entertainment area. It is best to position the jets away from tables
and chairs, and where people may sit as the jets may at times drip water. You
do need to work out what you can attach the pipe-work to and plan a route that
makes attaching the pipe-work easy.
B. Water Supply
The misting system uses very little water volume. Each
jet uses 3 litres an hour. The misting system works best
when you have a high pressure water supply. The higher
the pressure the ner the water droplet and the quicker
and more eectively the droplet evaporates and cools
the area. A normal household water supply is usually at
an adequate pressure.
The misting pipe can be connected directly to a garden
tap. Only fresh tap water is suggested as bore or dam
water may contain sediment that will block the jets. You
can use a garden hose to bring water from a tap in the
area to the start of the misting pipe-work. If the hose
is running in the sun, please ensure it is a good quality
hose that will be able to withstand the pressure when
the water and hose may get heated. (See page 6 for
Garden Hose connection)

D. Installing The Fittings
The Holman Misting System features “compression ttings”.
These ttings feature a compression ring that grips the tube and prevents it coming
loose or leaking water.
The higher the pressure the better the compression ttings hold onto the tube.
To ensure a good joint, the tube must be cut “square” and “burr free”.
The best way to achieve this result is to use the Holman misting tube cutter.
This ensures a clean square cut. It is also very quick to use.
(Holman Misting Tube Cutter sold separately - Product Code: MS20011)
Once the tube is cut the compression tting is very simply installed.
• Bring the 2 parts together, level and straight.
• Push the tube in while twisting the tting a little.
• The tube should enter the tting at least 10mm. Once tubing is installed it cannot
be removed from the elbow, tee or joiner.
5
C. Positioning Misting Jets
Factors to consider are: -
• Spacing of jets.
• Location of jets over tables or chairs.
• How many jets in a particular area.
There are no xed rules to how you position the jets.
The more jets you have, the more water you will use and potentially the cooler
the space will become.
However, too much water can be a problem because the air can become saturated
and even wet the people and objects in the space.
Holman recommend the following:
• Space jets between 600mm and 1 metre apart.
• Locate jets away from tables and sitting areas if possible.
• Try and create a curtain of mist at least on two sides of the area being cooled.
• Install a Holman misting timer. This will allow you to regulate the amount of water
entering a space by adjusting the “ON” times and “OFF” times of the timer. You
would have more “ON” time on a hot dry day than a cooler moister day.
The HOLMAN misting timer allows you to make these settings in seconds, where
other timers may not have this feature.
(Fig. 8)
4
Spacing 600mm to 1 metre for
eective coverage of chosen area
(Misting Jet) (Misting Jet)
(Misting Tube)
Tube pushed 10mm
into each tting
(Fig. 7)
(Misting Jet) (Misting Jet)
(Misting Tube)
Misting System Assembly & InstallationMisting System Assembly & Installation

77
Misting System Assembly & InstallationMisting System Assembly & Installation
Work out the spacing of the misting jets and cut the misting hose to length and
install the relevant misting tees. Finish each line with a misting elbow.
(3 x Misting Elbows are included in this System to enable installation of a single or
multiple line misting solution. More Misting Elbows are available at your nearest
HOLMAN stockist Product Code: MS20003)
Use the hose clamps to attach the misting hose to the wall or beams.
The Holman hose clamps use a very strong masonry nail that should not bend
when you hammer it into timber or masonry.
HINT 1: Run pipework along mortar joints in brickwork.
Hammer the hose clamps into the brickwork for a reliable result.
HINT 2: Use a hose clamp on each side of a misting tee to ensure the tee is rmly
positioned and misting in the correct direction.
HINT 3: If hammering into metal the correct nails will need to be purchased.
HINT 4: Avoid installing the tube in direct sunlight as this may cause the tube
to go brittle over time.
Position Hose Clamps
7-8cm away from
Nozzle
(Hose Clamp) (Hose Clamp)
(Misting Jet)
Tap
Auto Drain Valve
Misting Tees
with Nozzles Misting Elbow End
Misting Tube
Curtain of Mist for most eective coverage.
(Illustration shows 5 Misting Tees and 1
Misting Elbow being used as an example of
a basic layout.
Further products to extend your misting
system are available at your local HOLMAN
stockist).
Hose Clamps
Elbow or Tee
Connector
Misting
Tee
Misting
Filter
E. Installing The Misting System
Each section of tube should be
connected before attempting
to pin the system to walls or
beams. Start at the garden tap
or water source point. If you
are using a Garden Hose (A),
it is recommended that you
install a Sprinkler Adaptor (C)
into the Misting Filter (8) as
shown. Run the tube to the
position you want your rst
misting jet in. Use Tees or
Elbows to go around corners
or split the pipe runs. Visit
www.holmanindustries.com.aufor
more info on our sprinkler adaptors
A
81
C

Do not remove the end of Auto Drain Valve unless blocked. There is a very small
ball inside and if opened the ball will fall out.
5. Maintenance Of Your Misting System
Please use these hints to keep your misting system operational and prevent
unnecessary clogging of the misting jets: -
1)
Drain Water from your System
When your system is not in use, drain all water from your system. If you use an
automatic draining valve, this job will happen automatically.
2)
Clean Nozzles
Periodically clean all nozzles by soaking them in a solution of vinegar, or similar
calcium and iron remover.
3)
Flush System
Periodically remove all nozzles and ush the system by running water through it
for 4 or 5 minutes.
4)
Clean Filter
Periodically clean the lter by soaking in a solution of vinegar to remove calcium
and iron build up.
6. Troubleshooting
1) Disassemble System
If you need to disassemble the system this can be done.
The best way to remove compression ttings from the misting hose is to “wobble”
them from side to side while pulling them apart
If the misting hose is damaged in this action, cut it o before the compressor
tting is re-installed.
2)
Clean Nozzles
If nozzles are “dripping” or not “misting” properly, they must be removed and
soaked in cleaning solution like vinegar. If this fails to clean the jet, it is highly
recommended to purchase replacement jets and replace all jets as required.
F. Flushing The System
Perhaps the most important part of the installation process is to properly ush
the system.
Remove ALL JETS and then connect the water and run for 4 or 5 minutes. This will
ensure that all dirt and pipe swarf is ushed from the system. If this is not done,
the brass jets will clog up and then they will not work correctly.
The hole size in the brass jets is extremely small. It is like this to ensure that the
water particle is very small – like a mist.
G. Water Filter
Because the principle of evaporative cooling relies on very small volumes of water
evaporating and absorbing the ambient heat, it is critical that the water entering
the misting system is very clean and free of all particles that will not pass through
the very small hole in the misting jet.
It is highly recommended that the lter be installed immediately after the connection
to the water source.
From time to time it may be necessary to clean the lter. This is best done by using
cleaning solution like vinegar. This is available at your hardware store.
This will not only assist clean solid particles away, but it will dissolve calcium and
iron deposits that build up as water evaporates in the lter (and jets).
H. Auto Drain Valve
This is a very important component in your misting system.
This should be installed at a low point in the system.
This valve will automatically release the pressure in the line and them “dump” the
water in the misting hose “above” the level of the auto drain valve when the water
is turned o.
It is important to note that the Auto Drain Valve should be positioned
where water can run freely. ie. Into a drain or garden area.
This is important to stop the misting jets from “dripping” and “dribbling” and
also stops the build up in precipitated salts (like calcium and iron) from the water.
98
MaintenanceMisting System Assembly & Installation

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