Daikin VAM-FA series, VKM-GM series, VKM-G series Catalogues

HRV

Heat Reclaim
Ventilation

VAM-FA Series

VKM-GM Series

VKM-G Series

contents

Table of Contents

p. 3

INTRODUCTION

GENERAL HRV FEATURES

Energy Efficiency
Design Flexibility
Clean Air

VKM FEATURES

Energy Efficiency
Design Flexibility

LINE-UP

CONTROL SYSTEMS

Individual Control Systems
Centralised Control Systems

SPECIFICATIONS

VAM-FA
VKM-GM
VKM-G

4

6

6
7

9

10

10
11

12

13

13
16

18

18
19
20

OPTIONS

21

p. 4

Daikin

Daikin has a worldwide reputation based on over 70 years’

experience in the successful manufacture of high quality air

conditioning equipment for industrial, commercial and

residential use.

Daikin Europe N.V.

introduction

Environmental Consciousness

Enhancing the present - safeguarding the future

Throughout the last 50 years or so the basic building blocks of life - air, water and the earth - have been
systematically subjected to increasing levels of pollution with little regard to their potentially devastating
effects on future generations.

Recently however, concern has grown regarding climate changes, acid rain, water and air pollution and
the constant degradation of Earth’s natural resources. The very technology that created these problems is
now being harnessed to halt and reverse them. Depletion of the ozone layer and global warming have
been highlighted and are now being addressed. Government legislation prohibiting the use of toxic
substances and the generation of pollutants has slowed down the destruction of the environment.

Daikin Europe is proud to have been pro active in this respect, closely following its Japanese parent in
implementing policies that have often pre-empted official legislative codes and directives. As a result, a
culture of “environmental management” has since 2001, played a key role in the company’s day to day
activities and development strategies.

Top management commitment is reflected in the establishment of a number of action plans, which are
now strictly observed and implemented throughout the Daikin Group.

p. 5

HRV helps create a high quality environment by interlocking with the air
conditioning system

The Daikin HRV (Heat Reclaim Ventilation) recovers heat energy lost through
ventilation and holds down room temperature changes caused by
ventilation, thereby maintaining a comfortable and clean environment. This
also reduces the load on the air conditioning system and conserves energy.

In addition, the HRV interlocks with Daikin’s VRV system, Sky Air and other air
conditioning systems and automatically switches over ventilation mode,
further increasing the effects of energy conservation. HRV operation has
been centralised on the air conditioner remote control allowing total
control over air conditioning and ventilation via a simple configuration.

The current line-up includes models with DX coil and/or humidifier - the DX
coil helps prevent the direct impact of cold airflow upon personnel during
the heating cycle and vice versa. High static pressure enhances design
flexibility.

Components of Indoor Air Quality

Ventilation

Humidi-

fication

HRV

Airflow

New Features VKM unit

• Humidifier

• DX coil

• High static pressure

Line-up

Air flow rate (m3/h) 150 250 350 500 650 800 1000 1500 2000

VAM-FA
Ventilation

VKM-GM:
Ventilation, DX coil
& humidifier

VKM-G:
Ventilation & DX coil

p. 6

general HRV features

II. General HRV (VAM+VKM)

Features

1

1. ENERGY EFFICIENCY

• Over 30 % Size Reduction
Use of the high efficiency paper (HEP) element and optimized design of the fan and airflow
passages have resulted in matchless compactness without detriment to the 28% or so reduction
in air conditioning load achieved by previous models. A reduction of up to 40mm in height
allows the main unit to fit easily into limited spaces such as ceilings
On average 28 % air conditioning load reduction (maximum 40 %):

- 20% by operating in total heat exchange mode (in comparison with normal ventilation fans)

- a further 6 % by auto-ventilation mode changeover switching

- a further 2 % by pre-cool, pre-heat control (reduces air conditioning load by not running the

HRV while air is still clean soon after the air conditioner is switched on.)

Note: the values mentioned above may vary according to weather and other environmental conditions at the location of the unit’s
installation

• Proprietary Developed HEP Element
The heat exchange element uses a high efficiency paper (HEP) possessing
superior moisture absorption and humidifying properties.
The heat exchange unit speedily recovers heat contained in latent heat
(vapour). The element is made of a material with flame resistant properties
and is treated with an anti-moulding agent.

Operation of the heat exchanger element

Outdoor Indoor

30.6°C
62% RH

32°C
70% RH

Integrally-formed liner

SA

27.4°C
63% RH

RA

26°C
50% RH

Temperature
and humidity

SA

Integrally-

formed liner

RA

design flexibility

p. 7

• Automatic Changeover to Efficient Operation Patterns
Operation automatically switches to the optimum pattern to suit prevailing conditions

Cooling In between (bypass ventilation) Heating

Exhaust fan Damper

Heat exchanger element
(heat recovery)

Heat exchanger element
(heat recovery)

EA

OA

Air supply fan

2

2. DESIGN FLEXIBILITY

RA

SA

DX coil (cooling)

Automatic

changeover

EA

OA

RA

changeover

SA

Automatic

EA

OA

DX coil (heating)

Humidifying

• Outdoor Operation Temperature down to -15°C

If the outdoor air suction temperature falls below -10°C, the unit switches to intermittent
operation to prevent freezing of the heat exchanger element and dew condensation within the
unit.
Intermittent operation = a thermistor (standard equipment) within the unit detects the outdoor
air temperature. Unit operation varies according to the detected temperature.

• Slim Design

The slim design of the HRV unit enables it to be mounted in narrow ceiling voids and irregularly
shaped spaces.

RA

SA

269mm VAM250FA

• Installation under the floor of a small building • Installation under a beam • Installation in an irregular space

348mm

p. 8

design flexibility

• Simple Design and Construction

The unit can be installed either horizontally or vertically in accordance with the conditions of
the location.
A 450mm square inspection hatch enables maintenance and heat exchange element
replacement to be performed with ease.

Switch box

Access door

Maintenance cover

• Quiet Operation

Sound pressure levels are remarkable low at 20.5dBA (VAM150FA)

dB(A) Perceived loudness Sound

0 Treshold of hearing -
20 Extremely soft Rustling leaves
40 Very soft Quiet room
60 Moderately loud Normal conversation
80 Very loud City traffic noise

100 Extremely loud Symphonic orchestra
120 Threshold of feeling Jet taking off

Daikin units