Enware Aquablend 1500 User manual

Installation Instructions

FOR USE IN AUSTRALIA

15MM THERMOSTATIC MIXING VALVE

Call 1300 369 273

www.enware.com

Enware Australia Pty Limited

9 Endeavour Rd Caringbah NSW 2229 Australia

Ph: +61 2 8556 4000 info@enware.com.au

AQUABLEND 1500

THERMOSTATIC

MIXING VALVE

WITH THERMAL FLUSH

I00103_Jul 18

NEW AQUABLEND 1500

FAQ and technical info available at

www.enware.com.au/1500info

I00105 VC463

IS123

2 Call 1300 369 273 www.enware.com.au

THIS PAGE HAS INTENTIONALLY BEEN LEFT BLANK

www.enware.com.au Call 1300 369 273 3

PRODUCT FEATURES

Complies with the

requirements of AS4032

- Thermostatic Mixing

Valves

Provides high stability

of mixed water

temperature even

under changing inlet

conditions

Ensures rapid shut

down of mixed outlet

ow in the event of hot

or cold water supply

failure

Designed for quick and

simple in-situ servicing

Suitable for installation

into AS3500 compliant

systems with hot water

temperature as low as

55°C

Fitted with a Tamper

Resistant temperature

adjustment mechanism

Built-in Thermal Flush

feature allows controlled

thermal ush to the

TMV and warm water

plumbing system

Enware reserves the right to change any product specification or information

contained in this publication, at any time and without notice. Every care has

been taken to ensure accuracy in the preparation of this publication

which has been issued for guidance only. No liability can be accepted for any

consequences which may arise as a result of its application.

Enware is a trade mark of Enware Australia Pty Limited - A.C.N. 003 988 314

Aquablend TMV’s are exclusively manufactured for Enware Australia Pty Limited

by Reliance Worldwide 27-28 Chapman Place, Eagle Farm, Qld, 4009 Australia.

The ENWARE AQUABLEND

1500 THERMOSTATIC MIXING

VALVE is a high performance

Thermostatic Mixing Valve

suitable for a wide range

of applications. The valve

is designed to comply with

AS4032 - Thermostatic

Mixing Valves.

AQUABLEND 1500 THERMOSTATIC MIXING VALVE

4 Call 1300 369 273 www.enware.com.au

THIS PAGE HAS INTENTIONALLY BEEN LEFT BLANK

www.enware.com.au Call 1300 369 273 5

CONTENTS

SAFETY page 6

PRODUCT DESCRIPTION page 7

RECOMMENDED PRESSURES

AND TEMPERATURES page 10

FLOW SIZING GRAPH page 11

INSTALLATION page 12

COMMISSIONING OF THE VALVE page 15

MAINTENANCE & SERVICING page 18

THERMAL FLUSH page 20

TROUBLE SHOOTING page 22

SPARE PARTS page 24

COMMISSIONING REPORT page 25

SERVICING REPORT page 28

WARRANTY page 30

AQUABLEND 1500 THERMOSTATIC MIXING VALVE

6 Call 1300 369 273 www.enware.com.au

SAFETY

The ENWARE AQUABLEND 1500 Thermostatic Mixing Valve

is a high performance valve designed to give stable and

dependable operation, provided it is installed, commissioned,

operated and maintained as per the recommendations

outlined in this manual. It should be noted however that this

valve should not be considered as an alternative to adequate

supervision and duty of care during its use and operation.

Note: When installed, the mixing valve, inlet controls, pipework

and the surrounding area may become hot, which may cause

burn injuries. Precautions should be taken to ensure that these

surfaces cannot cause such injuries.

www.enware.com.au Call 1300 369 273 7

PRODUCT DESCRIPTION

The ENWARE AQUABLEND 1500 Thermostatic Mixing Valve

is available complete with inlet service ttings. The inlet to

the ttings is ½” BSP male, and the outlet from the valve is

½” BSP male adapter with an optional ¾” BSP male adaptor.

The service ttings consist of isolating ball valves, strainers,

pressure test points and non-return valves. The strainers can

be serviced and cleaned without disturbing the installation

(refer to Maintenance and Servicing section). The inlet service

ttings also incorporate union type ttings enabling the

thermostatic mixing valve to be removed from its installation

without disturbing its pipework.

AQUABLEND 1500

Enware Product Code ATM700

Outlet Size 1” with 1/2" and 3/4" BSP adaptors

Inlet 1/2" BSP male with compression nuts

Dry Weight 2 kg

Finish Nickel Plated

160

225

125

1” BSP (½” & ¾” BSP

ADAPTORS SUPPLIED)

1/2" BSP

IMAGE 1

8 Call 1300 369 273 www.enware.com.au

PRODUCT DESCRIPTION

Method of operation is illustrated in IMAGE 2 below:

Hot and cold water is supplied to each side of the valve

respectively. The hot water enters through a port below the

Piston, the cold water enters above the Piston. Upon entry

the water begins to blend and enters the Mixing Tube. At

this point the mixed water contacts the thermostatic wax

Element. The Element will extend or contract to match the

water temperature it is exposed to causing the Piston to move,

thereby regulating the amounts of hot and cold water entering

the valve. This thermostatic mechanism maintains the mixed

water temperature at a constant temperature.

IMAGE 2 - GENERAL ARRANGEMENT DRAWING

www.enware.com.au Call 1300 369 273 9

PRODUCT DESCRIPTION

If, for example the inlet hot pressure dropped, the ow of

hot water into the valve would be reduced and the valve

would react as per the following sequence of events:

• Element is exposed to mixed water at a reduced

temperature

• Thermostatic Element contracting

• Piston is pushed upwards by the return spring restricting

cold ow, consequently opening more of hot port.

• Valve attempts to restore itself to original temperature

setting.

Similarly if the hot inlet temperature dropped, the element

would again see blended water at a lower temperature and

therefore the Element would again contract reducing the

cold port piston gap and hence supply more hot water and

less cold. Once again the valve attempts to restore itself to

its original setting. This will occur for all changing conditions

including changes to ow rate, inlet temperatures and inlet

pressures.

In the event of a sudden loss of the cold water supply the

Piston will shut off the hot port thus stopping any ow through

the valve. The valve will also shut down the cold supply if there

is a hot water failure.

10 Call 1300 369 273 www.enware.com.au

RECOMMENDED PRESSURES

& TEMPERATURES

MIXED OUTLET TEMPERATURE

Temperature Adjustment Range 35-48°C

INLET TEMPERATURES

Cold Supply Minimum 5°C

Maximum 30°C

Hot Supply Minimum 55°C

Maximum 90°C

Hot to Mix Temperatures Differential for

Stable Operation Minimum 10°C

Cold to Mix Temperatures Differential

for Stable Operation Minimum 5°C

FLOW RATES - TO ENSURE STABLE CONDITIONS SEE IMAGE 3

Minimum 4 litres/minute as per ow sizing graph

Maximum 39 litres/min @ 300kPA Pressure loss as per ow

sizing graph

DYNAMIC INLET PRESSURES

Hot & Cold Inlet Pressures Minimum 20kPa

Maximum 500kPa

STATIC INLET PRESSURES

Hot & Cold Inlet Pressures Maximum 1600kPa

INLET PRESSURE RATIO

H - PL = H¹

C - PL = C¹

H¹ : C¹ = Max 10:1

C¹ : H¹ = Max 10:1

H = Hot inlet pressure

C = Cold inlet pressure

PL = Pressure Loss

NOTE: For optimum operation it is recommended that the hot

& cold water supply pressures be balanced to within +/- 10%.

Notwithstanding the above, compliance with AS3500 must be

maintained.

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