Envirovent energiSava 300, energiSava 400 Installation Manual

01 Safety Instructions

IMPORTANT

Be sure to have read and understood these
instructions before beginning the installation
process.

PRE-INSTALLATION CHECK LIST

Make sure that the unit can physically t in to

the desired location.

SAFETY AND RECOMMENDATIONS

• This appliance can be used by children
aged from 8 years and above and
persons with reduced physical, sensory or
mental capabilities or lack of experience
and knowledge if they have been given
supervision or instruction concerning
use of the appliance in a safe way and
understand the hazards involved. Children
shall not play with the appliance. Cleaning
and user maintenance shall not be made
by children without supervision.

Installation must take place under:

• Quality requirements ventilation systems
in dwellings.

• Quality requirements balanced ventilation
in dwellings.

• The regulations for ventilation of dwellings
and residential buildings.

• The safety regulations for low-voltage
installations.

• The regulations for connection to interior
sewers in dwellings and residential
buildings.

• Any additional regulations of the local
utilities.

• The installation instructions for the
energiSava 300 & 400

01

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02 Technical Specications

Before you begin to install the heat recovery unit, check that it has been supplied complete
and undamaged.

The energiSava 300 & 400 units should include the following components:

1. Heat recovery appliance type energiSava
300 & 400

2. Wall mounting bracket kit containing:

• 2 x suspension strips

• 3x protective caps

• 1 x rubber strip

• 2 x rubber rings

• 1 x mounting instructions

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3. PVC condensate discharge connection
containing:

• 1 x synthetic screw gland 1.5”

• 1 x sealing ring

• 1 x PVC glued coupling 32 mm

4. Documentation set consisting:

• 1 x installation instructions

02

02 Technical Specications

The energiSava 300 & 400 are ventilation
units with heat recovery incorporating a high

eciency heat exchange cell, a maximum

3

ventilation capacity of 300 or 400 m
low-energy fans.

Features:

• Steplessly adjustable air ow rates through
a control panel;

• Filter indication on the appliance and

the possibility for lter indication on the

multiple switch;

• A completely new intelligent frost
protection system. This ensures that
even at low outdoor temperatures the
appliance's performance remains optimal
and that, if necessary, it activates the
standard preheater.

/h and

Compared to the standard version, the Plus
version has a more extensive control board
which increases the connection options.

These installation instructions describe both
the standard and the Plus versions.

The Plus version is available in the left­handed or right-handed version. A left-

handed version has the lters on the left
behind the lter door; a right-handed version
has the lters on the right behind the ltered
door. The position of the air ducts diers for

these two versions. For the correct position
of the connection ducts and dimensions
(see pages 9-10).

When ordering an appliance always state
the correct type; subsequent conversion to

a dierent version is not possible.

• Low sound level

• Comes as standard with automatic bypass
valve

• Constant ow control

• Low energy consumption

• High eciency

The energiSava 300 & 400 are available in
two types:

• Standard version

• Plus version

The energiSava 300 & 400 comes ready
to wire into the 230V mains fuse spur and
has a connection for a low-voltage multiple
switch on the outside of the appliance.

03

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02 Technical Specications

Version types energiSava 300 & 400

Type Version L or R Position air ducts

energiSava
300 & 400
(standard version)

energiSava
300 & 400
(Plus version)

Left-handed

version

Right-hand

version

Left-handed

version

Right-hand

version

4 top connections Power cable 4/0 L

4 top connections Power cable 4/0 R

4 top connections Power cable 4/0 L+

4 top connections Power cable 4/0 R+

Power
supply

Type code

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04

02 Technical Specications

energiSava 300

Supply voltage (V/Hz) 230/50

Protection degree IP30

Dimensions (w x h x d) (mm) 677 x 765 x 564

Duct diameter (mm) Ø160 / Ø150

External diameter condensate
discharge (mm)

Weight (kg) 38

Filter class G3 (F7 optional for supply)

Fan setting (factory setting) 1 2 3

Ventilation capacity (m

Permissible resistance ducts
system (Pa)

Rated power (excl. preheater) (W) 9.0 - 9.2 13.7 - 15.2 22.0 - 29.2 46.8 - 66.2

Rated current (excl. preheater) (AA) 0.104 - 0.107 0.150 - 0.161 0.214 - 0.274 0.403 - 0.578

Max. rated current (with preheater
switched on) (A)

Cos φ 0.368 - 0.374 0.391 - 0.416 0.447 - 0.463 0.505

3

/h) 50 100 150 225

3 - 7 11 - 28 26 - 66 56 - 142

Ø32

6

Sound Power energiSava 300

3

Ventilation capacity (m

Sound power level Lw
(A)

In practice, the value may deviate 1 dB(A) as a result of measuring tolerances

/h) 90 150 210 300

Static pressure (Pa) 50 100 50 100 50 100 50 100

Housing emission dB(A) 30 33 38 38 44 46 50 52

Duct from dwelling dB(A) 33 34 39 42 45 46 54 54

Duct to dwelling dB(A) 44 47 52 55 60 60 67 67

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05

02 Technical Specications

0 25 50 75 100 125 150 175 200 225 250 275 300 325

energiSava 300 fan graph

400

375

350

325

300

275

250

225

200

175

150

125

100

Resistance ducts system (Pa)

75

50

25

Note: The value stated in
the circle is the capacity
per fan (in Watt)

0

5

69

44

33

26

27

15

8

7

12

11

23

19

23

33

28

52

46

Flow rate [m3/h]

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06

02 Technical Specications

energiSava 400

Supply voltage (V/Hz) 230/50

Protection degree IP30

Dimensions (w x h x d) (mm) 677 x 765 x 564

Duct diameter (mm) Ø180

External diameter condensate
discharge (mm)

Weight (kg) 38

Filter class G3 (F7 optional for supply)

Fan setting (factory setting) 1 2 3

Ventilation capacity (m

Permissible resistance ducts
system (Pa)

Rated power (excl. preheater) (W) 8.6 9.5 - 15.0 29.0 - 40.0 72.0 - 98.0

Rated current (excl. preheater) (AA) 0.10 0.12 - 0.14 0.24 - 0.31 0.51 - 0.70

Max. rated current (with preheater
switched on) (A)

Cos φ 0.38 0.45 - 0.40 0.56 - 0.58 0.60 - 0.61

3

/h) 50 100 200 300

3 - 6 6 - 20 25 - 79 56 - 178

Ø32

6

Sound Power energiSava 400

3

Ventilation capacity (m

Static pressure (Pa) 9 40 38 80 47 100 84 175 240 150 225

Sound
power
level
Lw (A)

In practice, the value may deviate 1 dB(A) as a result of measuring tolerances

Housing emission dB(A) 29.5 32.5 40.5 40.5 43.5 47.5 51.0 53.0 54.0 54.5 57.0

Duct from dwelling dB(A) 31.5 34.5 46.5 48.0 48.5 50.0 56.5 57.0 58.0 59.0 60.0

Duct to dwelling dB(A) 42.5 47.5 57.0 59.0 60.5 62.5 66.0 68.5 69.5 70.5 71.5

/h) 100 200 225 300 400

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07

02 Technical Specications

energiSava 400 fan graph

400

375

350

325

300

275

250

225

200

175

150

125

100

Resistance ducts system (Pa)

75

50

25

Note: The value stated in
the circle is the capacity
per fan (in Watt)

12

0

0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400 425

5

7

10

20

17

15

32

26

28

22

23

19

49

40

36

86

79

58

51

Flow rate [m3/h]

83

71

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08

02 Technical Specications

Connections & dimensions - Right handed version

1. To dwelling

2. To atmosphere

3. From dwelling

4. From atmosphere

5. Electric connections

6. Connection condensate discharge

Right-handed 4/0

7. Wall mounting bracket (note the
correct position of the rubber strip,
washers and caps)

09

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02 Technical Specications

Connections & dimensions - Left handed version

7

Mounting wall suspension kit

Left-handed 4/0

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10

02 Technical Specications

Rear view display cover

(Plus version)

1 Service connector Computer connection for service purposes

2 Display and 4 control buttons Interface between user and control electronics

3 Control board Contains the control electronics for the basic functions

4 Extract air lter Filters air ow from dwelling

5 Preheater Heats up the outdoor air when there is a risk of freezing in the heat exchanger

6 Heat exchanger Ensures heat transfer between input and output air

7 Supply air lter Filters outdoor are supplied to the dwelling

8 Bypass valve

9 Outdoor temperature sensor Measures outside air temperature

10 Indoor temperature sensor Measures the dwelling air temperature

11 Condensate discharge Connection condensate discharge (Kit comes separately with the appliance)

12 Extract fan Discharges air from the dwelling to the atmosphere

13 Supply fan Feeds fresh air into the dwelling

14 Modular connector multiple switch X2 Connections for cable to multiple switch, if desired with lter indicator

15 Connector eBus X1 Connection for eBus control

16 Connector X15 Contains the various control inputs and outputs; only for Plus version

17 Connector X14

18 Mains cable 230V Gland power cable 230V

19 Connection to postheater Gland 230V cable to postheateror extra preheater; only for Plus version

Sends the air through or around the heat exchanger (For 4/0 this valve is
in the upper part of the appliance)

Connection postheater; only for Plus version (accessible after taking o

the display cover)

11

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02 Technical Specications

The appliance is supplied ready to wire into
the fuse spur and operates fully automatically.
The extracted indoor air heats up the fresh,
clean outdoor air. That saves energy and
fresh air is sent to the required rooms.

The control system has three ventilation

modes. The air ow rate can be adjusted

per ventilation mode. The constant volume

control system ensures that the air ow

rate of the supply and extract fans is
always delivered despite any resistance
encountered in the ductwork.

The standard bypass valve makes it possible
to supply fresh outside air that is not heated
by the heat exchanger. Particularly during
summer nights it is desirable to supply
cooler outside air. In this mode the hot air in
the dwelling is replaced by cooler outside air
as far as possible.

The bypass valve opens and closes
automatically when a number of conditions

are satised (refer to the table below for

bypass conditions).

The operation of the bypass valve can be
adjusted in step number 5, 6 and step
number 7 in the settings menu (see page

41).

To prevent freezing of the heat exchanger
at extremely low outdoor temperatures,
the energiSava 300 & 400 features an
intelligent frost control. Temperature sensors
measure the temperatures across the heat
exchanger and, if necessary, the preheater
is switched on. This guarantees a proper
ventilation balance, even at very low outdoor
temperatures.

-The outdoor temperature is higher than 10°C and

-The outdoor temperature is lower than the indoor temperature in the

Bypass valve open

Bypass valve closed

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dwelling and

-The temperature in the dwelling is higher than the temperature set at step
no.5 in the settings menu
(set a standard at 22°C).

-The outdoor temperature is lower than 10°C or

-The outdoor temperature is higher than the indoor temperature in the
dwelling or

-The temperature from the dwelling is lower than the temperature set at
step no. 5 in the settings menu minus the set temperature by the hysteresis
(tolerance) (step no. 6), this temperature is factory set at 20°C (22.0°C
minus 2.0°C).

12

02 Technical Specications

Plus version

The energiSava 300 & 400 are also available as a Plus version. This version is equipped with

a dierent control board with 2 additional connectors (X14 & X15) with more connection

options for various applications.

The 9-pole connector X15 is accessible at the rear of the unit display cover without having
to open the appliance.

The 2-pole connector X14 is accessible after taking o the display cover. The display cover of

the “Plus” version has a second gland. That makes it possible to feed a 230 volt cable, which
may be connected to connector X14, to outside the appliance.

See page 33 for more information on the connection possibilities of connectors X14 and X15.

13

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03 Accessories

F7

2x G4

F7

G3 +F7

G4 +F7

2X G3

2x G4

G4 + Frame

Splitter RJ12 Control unit

CO

sensor, ush

2

mounted eBus or

surface mounted

0-10V proportional

(PLUS version only)

Transmitter wireless

remote control 2

positions (with. battery)

Transmitter wireless

remote control 4

positions (with. battery)

Receiver wireless remote

control (for battery

version)

Kit wireless remote

control 2 positions (1

transmitter & 1 receiver)

Electric postheater

energiSava 300

Ø160mm

energiSava 400

Ø180mm

Electric (extra) preheater

energiSava 300

Ø160mm

energiSava 400

Ø180mm

Filter kit 1 x F7 lter

(1 pcs)

Filter kit 1x G3 & 1x F7

(1 pcs/ 1 pcs)

RH sensor

Kit wireless remote

control 4 positions (1

transmitter & 1 receiver)

3-way switch white

ush-mounted

(without lter indication)

Delivered with insert plate

and cover frame

4-way switch with lter

indication; ush mounted;

modular connection.

Delivered with insert plate

and cover frame

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Mounting support

Enthalpie

heat exchanger

Service tool

14