Low Carbon Energy Solutions for Building Services

www.sav-systems.com

Issue 39

True Lifecycle Management of hydronic systems

FloCon Watchman combines the

advantages of FloCon commissioning

modules with SAV’s innovative Watchman

solution, providing real-time performance

data for fan coil and chilled beam systems.

Designing for soft landings

To comply with the government’s ‘soft

landings’ concept, building services

engineers need to take account of

a number of key criteria:

• Designs should facilitate correct

installation and ease of commissioning

• Systems can be easily ‘fi ne-tuned’

and ‘de-bugged’

• Systems can be easily re-confi gured in

line with changes in building usage

• Clients can monitor the

operation of the system

• Clients can measure the energy

consumption of their system

Historically, the majority of hydronic

systems have failed to address the

latter two points. FloCon Watchman

provides the data that underpins

a true understanding of system

operation and performance. This,

in turn, enables building occupiers

to make informed decisions based

on accurate, meaningful information.

The benefi ts of commissioning modules in hydronic systems are well established. FloCon Watchman takes this concept to the next logical stage, with continuous monitoring of fl ow rates and logging of energy data.

“You can’t manage

what you can’t measure.

FloCon Watchman delivers

the measurement.”

How it worksFloCon Watchman modules

incorporate the Watchman

electronic fl ow measurement

device, enabling continuous

monitoring of fl ow rates

through the BMS. The module

also continuously monitors the

Delta T across all terminal units

to ensure effi cient operation

and to support the management

of the hydronic system.

In addition, FloCon Watchman

modules are equipped with

data loggers to allow energy

metering within each zone of

terminal units.

FloCon WatchmanTM

How it works

Low Carbon Energy Solutions for Building Services Issue 39

terminal units.

www.sav-systems.com

www.sav-systems.com

Engineered solutions for hydronic systems

Locating valves at terminal units in congested voids

• 22% saving on installation time

• 57% saving on fl ushing horizontal mains pipework

• 77% saving on fl ushing fan coil unit circuits

• 56% saving on commissioning

A BSRIA study

using FloCon

modules showed

signifi cant time

savings compared

to locating valves

at terminal units.

FloCon commissioning modules provide a centralised ‘header’ for fan coil and chilled beam systems,

acting as a distribution hub for a group of terminal units. Each module incorporates all of the valves

required for commissioning and operation. FloCon modules can be sited in an easily accessible location

so that hydronic commissioning and maintenance can be completed from one practical access point.

(4 fan coils, 8 branch tees, min 24 joints)

FloCon

TP

STR

TP

DPCV

TP

TP

TPTP TPTP TPTP TPTP

(4 fan coils, 2 branch tees, ONLY 6 joints)

TP 4-6 terminals per module

15m to furthest terminal

Locating test points, strainers, drain, isolating, fl ushing, regulating and control

valves around terminal units is both impractical and costly in terms of commissioning

time and maintenance!

Other benefi ts include:

• Supports use of pre-fabrication and factory testing

• Modules are housed in pre-insulated, vapour-sealed boxes

• Optimises on-site use of skilled operatives

• Enables accurate commissioning, even with ultra-low fl ows

• Less disruption to conditioned space during maintenance

• Facilitates post-commissioning ‘fi ne tuning’

• Energy saving with variable speed pump control

• Ideally suited for use with fl exible piping system

Ideal for low fl ow heating systems

Variants for chilled beams

Easy access for commissioning

Signifi cantly speeds up commissioning process

Easy access for maintenance

Easy to reconfi gure in future

FloCon - An engineered solution

FloCon

FloCon WatchmanTM modules at a glance

FloConTM modules at a glance

Real-time monitoring of fl ow rates

Remote BMS monitoring

MID compliant energy metering

Accurate energy consumption data

Allow ‘soft landing’ tuning

Retrofi t to existing modules

All the benefi ts of FloCon, plus:

FloCon WatchmanTM

DPCVSTR

DRV

IV IV

BY-PASS

MAV

DOC

TP

TP

TEMP 1

RETURN TEMPERATURES

FLOW TEMPERATURE

TEMP 2 TEMP 3 TEMP 4

DOC DOC DOC DOC

For further information contact:SAV Systems, Scandia House, Boundary Road, Woking, Surrey GU21 5BXTel: +44 (0)1483 771910 Web: www.sav-systems.com E-mail: info@sav-systems.com

www.sav-systems.com

“The SAV solution offers better

more accurate control of

differential pressure and easier,

faster commissioning - a sixth of

every floor at 30 St Mary Axe,

could be balanced and finely

tuned from a single point.”

- Dave Gatwood, Project Manager,

Hills Mechanical

University of Liverpool, Central Teaching Labs

New Cannon Street Tube Station building

One Hyde Park, Central London

Bishopsgate, Central London

Harvey Nichols Department Store, Central London London Stock Exchange

30 St Mary Axe

“The benefits at the

commissioning stage have

been remarkable. There were

zero problems in a 125,000 ft2

building! Our commissioning

engineers describe the Modules

as “a dream to work with” and

all their figures were within the

design set margins.”

- Stuart Bareham, Waterman

Building Services

SAV Systems is proud to have supplied Flocon commissioning modules to a number

of prestigious buildings and businesses throughout Britain. SAV always aims to deliver

innovative solutions to the benefit of clients, consultants and contractors.

FloCon Module Installations FloCon