Davey Hydrascan Instructions - Dural Irrigation

Adjustable cut-in screw setting.
Your new Hydrascan ® CL has a pre-set cut-in pressure of 260kPa. For most
applications this will be satisfactory. In some cases a higher cut-in pressure
may be required. This can be achieved by following the instructions below.
These are some of the circumstances where adjustment to the cut-in may be
required:
High static (vertical) heads; where the pump is more than 15 metres below
the top outlet
High pressure pump model connected; where the pump to which the
Hydrascan ® CL is fitted has a high operating head, and a higher cut-in
pressure will improve the consumer satisfaction. Davey models such as the
following would be applicable:
HS50-06, HS60-08, M2051, M4051 etc.
Always check air precharge in tank - see maintenance section.
Quick Set Method
Equipment required:
Flat blade screwdriver
Tea cup
Tyre pressure gauge
Step 1 Fill the pump with water.
Step 2 Start pump and open tap to
purge air out of pipework.
Step 3 Close tap and pump will turn
off.
Step 4 Remove cut-in screw cover and
gently turn the adjusting screw
anticlockwise until it comes to a stop.
NB If the pump starts during step 4,
simply wait a few seconds until the
pump stops then repeat step 4.
Step 5 Slowly draw off:
for Supercell 8C; 190ml or 3 / cup 4
for Supercell 18C; 380ml or 11 Accurate Method
Equipment required:
Hydrascan
/ cups 2
of water and close the tap.
Step 6 Slowly turn the adjusting
screw clockwise until the pump starts.
The pump will start for a few seconds
and then stop.
Step 7 Replace the cut-in screw cover.
Congratulations: Your pump is ready to
use.
® test kit
Flat blade screwdriver
Fit Hydrascan ® test kit to top of
Hydrascan ® to allow test to be
conducted at the pump.
Step 1 Fill the pump with water.
Step 2 Start pump and open tap to
purge air out of pipework.
Step 3 Close tap and pump will turn
off.
Step 4 Remove cut-in
screw cover and
gently turn the
adjusting screw
anticlockwise
until it comes to a
stop.
NB If the pump
starts during step 4,
simply wait a few seconds until the
Note:
pump stops then repeat step 4.
Make sure the Supercell
Step 5 Slowly open the tap and allow
tanks are pre-charged to
15kPa below the desired
the pressure gauge to drop to the
desired cut-in pressure. Close the tap
cut-in pressure.
to hold the system at this pressure.
Step 6 Slowly turn the adjusting
screw clockwise until the pump starts.
The pump will start for a few seconds
and then stop.
The low pressure indicator light will be
illuminated momentarily when the
pump first starts. If the pump stops and
the light does not go off adjust to a
lower cut-in pressure or consult the
trouble shooting guide.
Step 7 Replace the cut-in screw cover.
Congratulations: Your pump is ready to
use.
During servicing, use only approved, non-petrochemical based
oring and gasket lubrication. If unsure, consult your Davey
Dealer for advice.
Maintenance
The only regular attention your new pressure system requires is to check the pressure
tank’s air charge every 6 months. This can be checked at the air valve with a tyre
gauge. Do not charge tank to a higher pressure than 15kPa below cut-in pressure.
To check air pressure in tank:
1. Switch off pump.
2. Open outlet nearest to pump to release water pressure.
3. Charge tank to desired setting using air pump and check with tyre gauge.
4. Switch on.
5. Close outlet.
Trouble Shooting Check List
a) MOTOR RUNS FOR SHORT PERIOD ONLY WHEN SWITCHED ON BUT DOES
NOT PUMP - LOW PRESSURE INDICATOR LIGHT REMAINS ILLUMINATED
1. Suction line and pump body not filled with water.
2. Air leaks in suction lines or suction pipe not under water.
3. Air trapped in suction lines (also possible with flooded suction due to uneven
rise in piping; eliminate humps and hollows).
4. No water at source or water level too low.
5. Valve on suction lines closed.
b) PUMP SWITCHES ON AND OFF FREQUENTLY (CYCLING)
1. Check that tank air charge is correct.
2. Cycling may occasionally be caused by float valves filling tanks. This can be
overcome by fitting more draw off capacity - talk to your Davey Dealer.
3. Leaking taps, float valves etc. check plumbing.
4. Leaking check valve/foot valve.
5. Scale on sensor - see Water Quality.
c) MOTOR DOESN’T START WHEN SWITCHED ON - LOW PRESSURE INDICATOR
LIGHT NOT ILLUMINATED
1. Power not connected or no power available from supply outlet.
2. Supply voltage too low.
3. System already primed and pressurised.
d) MOTOR DOESN’T START WHEN SWITCHED ON - LOW PRESSURE INDICATOR
LIGHT IS ILLUMINATED
1. Supply voltage too low.
2. ”Over temperature” cut-out tripped - switch off, wait 10 minutes and switch on
again.
3. Motor not free to turn - e.g. a jammed impeller.
4. Internal motor fault.
e) PUMP WILL NOT STOP
1. Flow Cone not fitted in Hydrascan ® .
2. Air lock in Hydrascan ® .
3. Water leaks on discharge side of pump.
f) PUMP WILL OPERATE NORMALLY INITIALLY BUT WILL NOT RESTART ON WATER
DEMAND - LOW PRESSURE INDICATOR LIGHT NOT ILLUMINATED
1. Power supply problem - see c) 1 or c) 2 above.
2. Static discharge head too high - measure vertical height to top outlet.
i. Adjust the cut-in screw setting.
ii. If static height greater than maximum head of pump, consult your Davey
Dealer for advice.
3. Suction depth too great.
4. Suction air leak.
5. Hot water in suction pipe (75°C+)
g) PUMP WILL OPERATE NORMALLY INITIALLY BUT WILL NOT RESTART ON
WATER DEMAND - LOW PRESSURE INDICATOR LIGHT IS ILLUMINATED
1. Suction depth too great.
2. Suction air leak - pump has lost prime.
3. Blocked impellers or suction.
4. Cut-in pressure set too high - must be at least 50kPa below maximum pump
pressure.
*NOTE:
a) For protection, Davey ® pump motors are fitted with an automatic "over
temperature"cut-out. Constant tripping of this overload device indicates a problem
e.g. low voltageat pump, excessive temperature (above 45°C) in pump enclosure.
b) The 'Hydrascan ®' control device may have to be reset after rectifying any of the
above operating troubles. This is done by pushing in the yellow button and
releasing it after 2 seconds.
DAVEY PRODUCT GUARANTEE FOR AUSTRALIA & NEW ZEALAND
The Davey Hydrascan® controller is guaranteed for a period of two years from the date of original purchase to be free of material or manufacturing
defects. Should any part fail as a result of such defects within this period, the Hydrascan® will be repaired free of charge. Additionally, a three year
pro-rata, parts only guarantee commencing from the end of the two years following purchase shall apply to the Hydrascan® control unit.
Installation and
Operating Instructions
for Davey Hydrascan® CL
Pressure System Controller
Plug & Play Version
(P/N 31610-300)
TERMS AND CONDITIONS
1. This guarantee applies to all states and territories of Australia and New Zealand only and is subject to the provisions of the Trade Practices Act
(Aust.), the Goods and Consumer Protection Legislation of the various Australian states and the Consumers Guarantee Act 1993 (NZ) as
applicable.
2. The guarantee period commences on the date of original purchase of the equipment. Evidence of this date of original purchase must be
provided when claiming repairs under guarantee. It is recommended you retain all receipts in a safe place.
3. This guarantee covers parts and workshop labour only. Goods should be forwarded, with proof of date of original purchase, to an
Authorised Davey Service Centre freight paid.
4. The pro-rata parts only guarantee means that after two years the owner will pay all labour costs for repairs and pay for parts used on the
following basis: for 25-36 months from purchase - 40% of list price; for 37-48 months from purchase - 60% of list price; for 49 -60 months
from purchase - 80% of list price.
NOTE: This guarantee only applies to Hydrascan®.
5. This guarantee is subject to due compliance by the original purchaser with all directions and conditions set out in the Installation and
Operating Instructions. Failure to comply with these instructions, damage or breakdown caused by fair wear and tear, negligence, misuse,
incorrect installation, chemical or additives in the water, inadequate protection against freezing, rain or other adverse weather conditions,
corrosive or abrasive water, lightning or high voltage spikes or through unauthorised persons attempting repairs are not covered under
guarantee. The product must only be connected to the voltage shown on the nameplate.
6. Without limiting the original purchaser’s entitlements under the Trade Practices Act (Aust.), the Goods & Consumer Protection Legislation of
the various Australian states, or the Consumers Guarantee Act 1993 (NZ), Davey shall not be liable for any loss of profits or any consequential,
indirect or special loss, damage or injury of any kind whatsoever arising directly or indirectly from the product or any defect.
7. Where the Trade Practices Act (Aust.), the Goods and Consumer Protection Legislation of the various Australian states and the Consumers
Guarantee Act 1993 (NZ) does not apply, Davey shall not be liable for any loss of profits or any consequential, indirect or special loss,
damage or injury of any kind whatsoever suffered by the purchaser arising directly or indirectly from the product or any defect and the
purchaser shall indemnify Davey against any claim by any other person whatsoever in respect of any such loss, damage or injury.
8. Nothing in this guarantee is intended to have the effect of contracting out of the provisions of the Trade Practices Act (Aust.), the Goods and
Consumer Protection Legislation of the various Australian states and Consumers Guarantee Act 1993 (NZ) except to the extent permitted by
the various Acts and this guarantee is to be modified to the extent necessary to give effect to that intention.
9. Davey may be collecting personal information from you in order to provide you with a service. Davey Pumps Pty Ltd promises only to use
this information in accordance with the Provisions of the Privacy Act 1988 (Cth) and the Privacy Policy of Davey Pumps Pty Ltd which is
available at www.davey.com.au.
® Davey and Hydrascan are registered trade marks of Davey Products Pty Ltd. © Davey Products Pty Ltd 1999
New Zealand
220A Bush Road,
North Harbour, Auckland 1330
Ph: +64 9 914 3680
Fax: +64 9 914 3685
Website: www.daveynz.co.nz
E-mail: sales@daveynz.co.nz
International
6 Lakeview Drive,
Scoresby, Australia 3179
Ph: +61 3 9730 9222
Fax: +61 3 9753 4248
AH: +61 3 9730 9121
E-mail: export@davey.com.au
Please pass these instructions on to the operator of this equipment.
U.S.A.
1005 N. Commons Drive
Aurora, Illinois 60504
Ph: +1 630 898 6976
Fax: +1 630 851 7744
Website: www.daveyusa.com
E-mail: sales@daveyusa.com
P/N 49105-3 Supersedes P/N 49105-2
Germany
Kantstrasse 47,
04275 Leipzig
Ph: +49 341 301 0412
Fax: +49 341 301 0413
E-mail: DaveyEurop@aol.com
Davey Products Pty Ltd
Member of the GUD Group
ABN 18 066 327 517
Head Office and Manufacturing
6 Lakeview Drive,
Scoresby, Australia 3179
Ph: +61 3 9730 9222
Fax: +61 3 9753 4100
Website: www.davey.com.au
Customer Service Centre
Ph: 1300 367 866
Fax: 1300 369 119
E-mail: sales@davey.com.au
Interstate Offices
Sydney – Brisbane – Adelaide
Perth - Townsville

Congratulations on your purchase of a high quality, Australian built Davey
Hydrascan®. All components have been designed and manufactured to give
trouble free, reliable operation.
Your new ‘Hydrascan®’ is an electronic flow control device – a Davey designed
product that enables the use of a highly efficient pump design and offers the
following benefits:–
1. Enables the pump to deliver a constant flow of water particularly at low flow
rates – reducing the inconvenience of pressure variation in showers etc.
2. Provides automatic “cut-out” protection should the pump run out of water or
overheat.
Before installing your new Hydrascan®, please read all instructions carefully as
failures caused by incorrect installation or operation are not covered by the
guarantee. Your Hydrascan® is designed to handle clean water. The system
should not be used for any other purpose without specific referral to Davey. The
use of the system to pump flammable, corrosive and other materials of a
hazardous nature is specifically excluded.
WARNING: Some insects, such as small ants, find electrical devices
attractive for various reasons. If your pump enclosure is susceptible
to insect infestation you should implement a suitable pest control plan.
The Hydrascan® Part No. 31610-300 consists of:
Hydrascan® controller with leads fitted
Hydrascan® connection flange with oring
Hydrascan® connection nut
Thread tape
Fitment of Hydrascan® Kit
The Hydrascan® control unit fits onto the outlet of the pump.
1. Tank connection inlet
2. Hydrascan® control unit
3. Flow cone
4. Connection Nut
5. Supercell Pressure Tank*
6. Hydrascan® outlet
*Purchased separately or as part of bundled kits KH8C or KH18C
Assembly
Step One
Ensure the discharge is clean and free of obstructions. This is
especially important on the outside of the discharge.
Step Two
Slide the connector nut over the discharge.
Step Three
Slide the oring over the discharge as shown. The oring can
be placed anywhere on the outside of the discharge
between 2mm below the top and the connector nut.
Step Four
Screw the discharge fitting (flange) into discharge of the
pump. There is no need to use thread tape on this flange.
You may care to apply a small amount of loctite 577 to the
thread on the flange (DO NOT USE THREAD PASTE).
When the connector nut is pulled up into position to engage
the Hydrascan ® , the oring will be also pulled up into its correct position.
Make sure the flow cone is secured in place in the Hydrascan ® body. Position
the Hydrascan ® control unit on top of the pump and tighten the connection nut.
Make sure the flow cone is secured in place in the Hydrascan ® body. Position
the Hydrascan ® control unit on top of the pump and tighten the connection nut.
The Hydrascan ® control unit is capable of 360° rotation to enable the most
convenient positioning of the discharge piping. Loosening the connection nut
enables convenient adjustment.
Fit the Supercell pressure tank to the tank connection inlet with thread tape.
Firmly hand tighten.
DO NOT USE THREAD SEALING COMPOUNDS, HEMP OR PIPE DOPE!
Pipe Connections
For best performance use P.V.C. or polythene pipe at least the same diameter
as the Hydrascan® outlet.
Larger diameter pipe may be used to minimise resistance to flow when
pumping longer distances.
Flexible pipe will help alignment during installation, as well as reduce noise
transfer during operation.
The Davey Hydrascan® fitted to this pump has a low pressure
indicator light mounted on its side panel, adjacent to the
yellow reset button. This light will be illuminated whenever
the Hydrascan® senses low pressure. The light will only work
when unit is connected to the correct electrical supply.
Power Connection
Connect lead to power supply designated on pump label, do not use
long extension leads as they cause substantial voltage drop, poor pump
performance and may cause motor overload.
The electrical connections and checks must be made by a qualified
electrician and comply with applicable local standards.
Electrical Power Surge Protection
An electrical power surge or spike can travel on the supply lines and cause
serious damage to your electrical equipment. The Hydrascan ® CL fitted to this
pump has a metal oxide varistor (MOV) fitted to help protect it’s circuit. This
MOV is a “sacrificial” device, meaning that it effectively gradually destroys itself
every time it takes a surge. The MOV is not a lightning arrestor and may not
protect the Hydrascan ® CL if lightning or a very powerful surge hits the pump unit.
If the installation is subject to electrical power surges or lightning we strongly
recommend the use of a suitable surge protection device on ALL electrical
equipment.
Plug and Play Options
Your Hydrascan® controller can be used to convert a compatible "plug and play"
Davey pump into an automatic water pressure system.
The motor leads fitted to your Hydrascan® has a special connection plug fitted.
It can be used to fit the automatic controller device to a compatible "plug and
play" Davey pump.
Disconnection: Holding the plugs with both hands, unscrew the ribbed locking
collar, then pull the plug ends apart.
Reconnection: Holding a plug end in each hand, push the ends together. The
ends can only be pushed together in one orientation - DO NOT force them.
Once pushed home, the ribbed locking collar can be screwed closed.
NOTE: There is no need to use tools to undo or tighten the locking
collar.
In accordance with AS 3350.2.41 we are obliged to inform you that this pump is
not to be used by children or infirm persons and must not be used as a toy by
children.
IP55 Compliant Connection
For some installations, such as wet areas in dairies, the pump is required to be
IPX5 compliant. The special "plug and play" lead connections can be made IP55
compliant if required.
To obtain IP55 compliant connection of the pump leads including those for the
automatic control device (if fitted) you will need to fix the enclosed screw into the
special plug. This screw is to be inserted into the pre-drilled hole once the plugs
have been connected.
NOTE: Under NO circumstances use other than the provided screw.
Water Quality
Abrasive Materials
The pumping of abrasive materials will cause damage to the
Hydrascan® which will then not be covered by the guarantee.
*NOTE:
For protection, the Davey pump motors are fitted with an automatic
reset thermal overload, constant tripping of this overload indicates a
problem e.g. low voltage at pump, excessive temperature (above 50°C)
in pump enclosure.
WARNING: Automatic reset thermal overloads will allow the pump to
restart without warning. Always disconnect the pump motor from the
electrical supply before maintenance or repairs.
WARNING: When servicing or attending pump, always ensure power is
switched off and lead unplugged. Electrical connections should be
serviced only by qualified persons.
Care should also be taken when servicing or disassembling pump to
avoid possible injury from hot pressurised water. Unplug pump, relieve
pressure by opening a tap on the discharge side of the pump and allow
any hot water in the pump to cool before attempting to dismantle.
IMPORTANT:
DO NOT USE petroleum based fluids or solvents (e.g. Oils, Kerosene,
Turpentine, Thinners, etc) on the plastic pump components or seal
components.
Where the water being pumped contains high levels of
dissolved solids (hard water) or biological organisms, a
scale build up on the Hydrascan ® CL sensor plate may
occur over time. This will cause the pump to cycle at
higher than normal flow rates (eg while using the
shower). To fix the problem, clean the sensor plate,
using a blunt object, such as a timber icy pole stick or
toothbrush - as illustrated.
WARNING: Do not use hydrocarbon based or hydrocarbon propelled
sprays around the electrical components of this controller.
After Sales Service
For professional after sales service or repair contact your Davey Dealer.
For assistance in locating your nearest dealer contact the Davey Customer
Centre on 1300 367 866