Davey HM Series Manuel utilisateur

Please pass these instructions on to the operator of this equipment.

WARNING: The Torrium2 controller, pump and associated pipework operate

under pressure. Under no circumstances should the Torrium2 controller, pump

or associated pipework be disassembled unless the internal pressure of the

unit has been relieved. Failure to observe this warning will expose persons to

the possibility of personal injury and may also result in damage to the pump,

pipework or other property.

WARNING: Failure to follow these instructions and comply with all applicable codes

may cause serious bodily injury and/or property damage.

NOTE: Prior to installation remove the inlet and outlet

pipe transport plugs & associated seals from the suction

and/or discharge ports.

Installation and

Operating Instructions

for Davey HM Series

Pressure Systems with

Pressure Switch

(Pressure Tank required and purchased seperately)

Prior to using this pump you must ensure that:

• The pump is installed in a safe and dry environment

• The pump enclosure has adequate drainage in the event of leakage

• Any transport plugs are removed

• The pipe-work is correctly sealed and supported

• The pump is primed correctly

• The power supply is correctly connected

• All steps have been taken for safe operation

Appropriate details for all of these items are contained in the following

Installation and Operating Instructions. Read these in their entirety before

switching on this pump. If you are uncertain as to any of these Installation

and Operating Instructions please contact your Davey dealer or the

appropriate Davey ofce as listed on the back of this document.

Congratulations on your purchase of a high quality, Australian built Davey

pressure system. All components have been designed and manufactured

to give trouble free, reliable operation.

1. Pressure Tank (purchase seperately)

2. Pressure Switch

3. Discharge Outlet

4. Suction Inlet

5. Pump Body

6. Motor

7. Pressure Gauge

8. Priming Plug (pump)

9. Non-Return Valve (not illustrated,

supplied loose)

Pressure Tank

Your Davey HM Series Pressure Pump requires the connection of a Hydro

Pneumatic pressure vessel. This can be connected by screwing it directly

on to the top of the discharge outlet or can be connected via a hose to the

side of the discharge tee.

We recommend the Davey Supercell range of tanks.

Before installing your new pump, please read all instructions carefully as failures

caused by incorrect installation or operation are not covered by the guarantee. Your

Davey pressure system is designed to handle clean water. The system should not be

used for any other purpose without specic referral to Davey. The use of the system to

pump ammable, corrosive and other materials of a hazardous nature is specically

excluded.

NOTE: Prior to installation remove the red transport plugs from the suction and/or discharge.

Pressure Switch Setting and Tank Precharge

Your Davey HM Series Pressure Pump should have the correct pressure

switch settings for zero suction lift. If your pump is installed with a suction

lift you may need to have the cut out switch settings adjusted. The

pressure tank(s) tted must be air pre-charged as per the table in the

maintenance section of these instructions.

Choosing a Site

Choose a site with a rm base and as close to the water source as

possible with correct power supply. Make sure your pressure system is

always connected to an adequate, reliable source of clean water.

Housing your Davey Pressure System

To protect your pressure system from the

weather, make sure the pump house is both

water proof, frost free and has adequate

ventilation. The pump should be horizontally

mounted on a rm base allowing for drainage,

to avoid damage to ooring etc., that over time

may occur from leaking pipe joints or pump seals.

Do not mount the pump vertically. Never place

ammable materials on or near your pump.

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.

WARNING: Some insects, such as small ants, nd electrical devices

attractive for various reasons. If your pump enclosure is susceptible to

insect infestation you should implement a suitable pest control plan.

The electrical connections and checks must be made by a qualied

electrician and comply with applicable local standards. Poor installation

or poor power supply may even result in electrical res!

WARNING: Do not use hydrocarbon based or hydrocarbon propelled sprays

around the electrical components of this pump.

In accordance with AS 3350.2.41 we are obliged to inform you that this

pump is not to be used by children or inrm persons and must not be used

as a toy by children.

Electrical Power Surge Protection

An electrical power surge or spike can travel on the supply lines and cause

serious damage to your electrical equipment.

If the installation is subject to electrical power surges or lightning we

strongly recommend the use of suitable additional surge protection devices

on ALL electrical equipment.

In accordance with AS 3350.2.41 we are obliged to inform you that this

pump is not to be used by children or inrm persons and must not be used

as a toy by children.

Pipe Connections

For best performance use

P.V.C. or polythene pipes at

least the same diameter as the

pump’s inlet and delivery outlet

openings. Larger diameter

pipe may be used to minimise

resistance to ow when pumping

longer distances.

Use unions at pipe connections to enable easy

removal and servicing. Use sufcient tape to

ensure airtight seal and hand

tighten only. To prevent strain on pump threads

always support heavy inlet and outlet pipes. If

there is a likelihood the water supply

may contain solid particles such as pieces of plant

or vegetable matter, a lter should be installed

before the pump to avoid blocking of water ways. Lay suction pipe at a

constant gradient to avoid air pockets which may reduce pump efciency.

Do not use pipe thread sealing compounds on any part of this

pump. ONLY use Teon sealing tape.

NOTE: Suction leaks are the largest cause of poor pump

performance and are difcult to detect. Ensure all connections

are completely sealed using thread tape only.

NOTE: For protection, the Davey pump motors are tted 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.

Where to use Check Valves

and Foot Valves

A check valve is required for tting to

installations with ooded or positive suction.

Care should be taken to ensure that it is

correctly installed in the suction line for

installations with ooded or positive suction.

Installations with ooded suction require a

gate valve so water supply can be turned

off for pump removal and servicing.

On installations with a suction lift a good

quality foot valve with strainer is required.

Installations with ooded suction require

a gate or isolating valve so water supply

can be turned off for pump removal and

servicing.

For Automatic Pressure Pumps Installed with a

Mains Pressure Hot Water System

To protect your system from damage

caused by back pressure from hot water

systems. You should always have installed

on the hot water inlet an approved non-

return valve.

DO NOT USE THREAD SEALING COMPOUNDS, HEMP OR PIPE

DOPE!

MAINS WATER

Check valve

Abrasive Materials

The pumping of abrasive materials will cause damage to the pressure

system which will then not be covered by the guarantee.

Approved

non-return valve

NOTE: Always ensure hot

water systems are installed in

compliance with manufacturers

recommendations and in accordance

with all local regulations.

Connection of Mains Scheme or Town Water

Supply to either Suction or Discharge of Pumps &

Pressure Systems

Most Water Supply Authorities have strict regulations regarding direct

connection of pumps to mains water supplies. In most cases an isolating

tank is required between mains supply and pump. Davey also recommend

this method. Directly applied mains pressure can exceed pump operating

pressure and damage pump.

Davey Water Products Pty Ltd can not accept responsibility for loss or

damage resulting from incorrect or unauthorised installations.

Priming and Operation

1. Remove priming plug and ll casing and

suction line (on ooded suction, simply

open gate valve to pump). When full,

replace priming plug.

2. Ensure outlet nearest to pump is open.

MAINS WATER

WARNING: When servicing or attending pump, always ensure power

is switched off and lead unplugged. Electrical connections should be

serviced only by qualied persons. If the electrical supply lead of this

pressure system is damaged, it must be replaced.

3. Ensure all valves in suction line are open and plug into electrical supply.

4. Switch on power and the pump will run. A full ow of

water should be discharged from the open tap. Allow

water to ow for 10-20 seconds, or at least until all air has

been expelled from the pump and then close the outlet.

5. If the pump stops pumping (no water ow), with the tap

open, stop the pump and repeat from Step 1 onwards.

If the pump motor stops with the tap open see troubleshooting checklist.

6. Close the open outlet or tap and the pump should stop after a few

seconds. If not, stop the pump and repeat from Step 1 onwards or

consult the troubleshooting checklist.

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 14 kPa below cut-in

pressure setting.

To check air pressure in tank:

1. Switch off pump.

2. Open outlet nearest to pump to release water pressure.

3. Remove air valve cap from top of Supercell tank and charge tank to

correct pressure using air pump and check with tyre gauge.

4. Switch on.

5. Close outlet.

NOTE:

Your pump is designed to operate as an automatic pressure system.

The pressure tank will require a specic precharge air pressure dependent

upon model.

While your pressure tank may have been precharged in manufacture,

the precharge pressure should be checked upon installation and every

6 months thereafter. Follow the instructions on the tank. As a guide, the

precharge settings are listed below:-

Pressure Settings

Pump Model Cut Out Cut In Tank

kPa kPa kPa

HM270-19P 300 200 180

HM60-06P

HM90-08P 400 250 230

HM160-15P

HM270-25P

HM60-08P

HM90-11P 500 300 280

HM160-19P

HM60-10P 620 350 330

HM90-13P

Note: The above are standard settings which may be adjusted according

to site conditions. Any adjustments should only be made by a suitably

qualied and experienced person.

Trouble Shooting Check List

A) MOTOR RUNS WHEN SWITCHED ON BUT DOES NOT PUMP.

1. Suction line and pump body not lled with water.

2. Air leaks in suction lines or suction pipe not under water.

3. Air trapped in suction lines (also possible with ooded 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 line closed.

B) PUMP SWITCHES ON AND OFF FREQUENTLY (CYCLING).

1. Check that tank air pressure is correct.

2. Leaking taps, oat valves etc. Check plumbing.

3. Leaking check valve/foot valve.

4. Pressure Switch may require adjustment to cater for ooded suction

installations – consult your Davey dealer for advice.

C) MOTOR DOESN’T START WHEN SWITCHED ON

1. Power not connected.

2. Supply voltage too low.

3. “Over temperature” cut out tripped.*

4. Motor not free to turn e.g. a jammed impeller.

5. Internal motor fault.

NOTE: For protection, single phase Davey pump motors are tted with

an automatic “over temperature” cut-out. Constant tripping of this

overload device indicates a problem e.g. Low voltage at pump, excessive

temperature (above 50°C) in pump enclosure.

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.

WARNING: When servicing or attending pump, always ensure power

is switched off and lead unplugged. Electrical connections should be

serviced only by qualied persons. If the electrical supply lead of this

pressure system is damaged, it must only be replaced by authorised Davey

service personnel as special tools are required.

WARNING: When servicing or attending pump, always ensure power

is switched off and lead unplugged. Electrical connections should be

serviced only by qualied persons. If the electrical supply lead of this

pressure system is damaged, it must be replaced.

Care should also be taken when servicing or disassembling pump to avoid

possible injury from 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.

During servicing, use only approved, non-petrochemical based oring and

gasket lubrication. If unsure, consult your Davey Dealer for advice.

WARNING: Do not use hydrocarbon based or hydrocarbon propelled

sprays around the electrical components of this pump.

NOTE: For protection, the Davey® pump motor is tted with an automatic

“over temperature” cut-out. Constant tripping of this overload device

indicates a problem e.g. low voltage at pump, excessive ambient

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.

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