Danfoss 010101 Air Ventilation Units User guide

User guide

Danfoss Air ventilation units

danfoss.com

User guide Danfoss Air ventilation units

BC465345765623en-010101

TABLE OF CONTENTS

1 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Important . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 The control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4 Automatic demand management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.5 Manual operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.6 Manual bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.7 Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 The control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1 Power saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2 Fireplace function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.3 Installer operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.1 General cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.2 Replacing lters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5 Error message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

User guide Danfoss Air ventilation units

BC465345765623en-010101

1 FUNCTIONAL DESCRIPTION

1.1 Important

The ventilation unit must always be in operation!

Beyond the 4 hours that the unit can be stopped from the control panel, it is not advisable to stop the unit. The risk of stopping it for a

longer period of time is that humid air can condense in the pipe installations and in the ventilation system, risking water damage to the

building structure, damage to the system and hygiene issues. It is therefore not recommended to turn o the ventilation, even for longer

vacations. If necessary, turn the system down to ventilation level 1 in manual mode when you go on vacation.

1.2 function

The unit blows fresh air from outdoor into the house.

Contaminated and humid air is extracted from kitchens, living rooms, bathrooms etc. and passed through the unit, where it reuses the

heat from the exhaust air to heat the cold fresh outdoor air before blowing it into the house.

1.3 Control panel

The control panel is used to set the unit's functions.

The features are described in more detail on page XX

1.4 Automatic demand management

When the system is running in automatic demand control, the airow is regulated according to how humid the exhaust air from

the home is. It is measured by a moisture sensor located in the ventilation system's exhaust duct.

• At humidity levels above 45% RH, the system runs constantly on ventilation level 3

• At humidity levels below 45% RH, the unit slowly regulates down. If the humidity is much lower over a longer period of time,

the unit will eventually go into fan level 1

Automatic demand control is always recommended as it ensures that the air exchange matches the demand while preventing

the home from drying out, especially during the winter months.

User guide Danfoss Air ventilation units

BC465345765623en-010101

1.5 Manual operation

If you want a dierent air volume than the system provides during automatic demand control, you can manually select between

ventilation level 0 - 4.

1.6 Manual bypass

The purpose of the bypass is to cool the home by directing the cool outdoor air directly into the home without heat recovery.

During normal operation (when the bypass function is not activated), the system cools using automatic bypass control when the

outdoor and indoor temperatures allow it, so there is usually no need to activate the manual bypass function.

For homes with large south-facing glass facades with high heat gain, it may be necessary to activate manual bypass in early

spring and fall, when the automatic bypass function does not open because the outdoor temperature is below 15°C.

With manual bypass, the system delivers cool outdoor air directly to the home for 6 hours.

1.7 Filters

The purpose of the lters is to remove dust and other debris from the outdoor air before it is blown into the house, and to protect

the heat exchanger and fans from the build-up of dirt and debris originating from the home.

The system comes standard with G4 lters on both the outdoor air and exhaust air side. An optional F7 pollen lter can be added

to the outdoor air, which lters out even ner particles, especially suitable for pollen allergy suerers.

Levels Functionality

On the control panel, the unit can be set to four dierent levels and be switched o

0 The unit is switched o. (all 4 fan level lights are o)

Used exclusively for e.g. odor nuisance from outside or emergency messages. If ventilation is interrupted

for more than 4 hours, there is a risk of condensation in ducts and unit with the risk of moisture damage.

Note that the unit is only o for 4 hours, after which the unit will start up at level 3.

1 Can be used at night or during absences such as vacations. When the home is empty, ventilation can be

temporarily reduced.

2 Used for normal ventilation needs.

3 Used for normal to high ventilation needs.

For example, when cooking, bathing, drying large amounts of clothes, guests and waste heat.

4 Use when you need a lot of air change, for example, during and just after a party when the house needs

to be aired out.

Note that fan level 4 is only active for 4 hours, after which the system returns to fan level 3.

User guide Danfoss Air ventilation units

BC465345765623en-010101

2 CONTROL PANEL









Component Functionality

1 The operation indicator shows three dierent states:

• Green - System is on and operating ok

• Yellow ash and beep sound - Filter needs changing

• Red and beep sound - Fault on the system

2 When activated, the button lights up.

The bypass is open and directs the cool outdoor air past the heat exchanger so that it is not

heated by the exhaust air.

Manual bypass is active for 6 hours, after which the system automatically shuts down the bypass

again.

In Automatic mode, the unit automatically opens and closes the bypass when necessary.

3 When activating manual operation, you can switch between unit o or fan levels 1-4.

1 2 3 4

Indicates the current fan level.

5 When automatic demand control is activated, the unit controls according to the humidity in the

exhaust air of the home.

Acoustic alarm

In the event of a fault in the system, the control panel beeps once per hour (also applies to lter

change time).

User guide Danfoss Air ventilation units

BC465345765623en-010101

3 OPERATION

4 MAINTENANCE

3.1 - Power saving

The light turns o after 2 minutes of inactivity to save power, with the exception of the green LED.

4.1 General cleaning

In order for the unit to run reliably, it is necessary to perform maintenance in the form of replacing lters and cleaning the unit.

Keep the unit clean to ensure awless operation and good hygiene. If the system is dirty, e.g. around the lter openings, clean

it with a hard-wrung cloth with lukewarm water, possibly with dishwashing detergent.

Important: Chemical solvents must not be used!

4.2 Replacing lters

When the lter alarm appears on the control panel, it's time for a lter change.

3.2 Fireplace function

When pressing Manual mode for 6 seconds, fan level 3 ashes on the control panel. The system will stop the extraction and main-

tain the supply air at fan level 3 for 15 minutes.

Used when lighting the replace or stove to ensure that negative pressure does not draw smoke into the home.

3.3 Installer operation

When pressing Manel operation + Auto for 6 seconds, fan stage 3 lights up. The system runs in fan stage 3 for one hour.

During that hour, all other functions, including humidity control, are overridden.

User guide Danfoss Air ventilation units

BC465345765623en-010101

Levels Handling

1 Turn o the power to the system.

2 Lift o the front panel of the ventilation unit.

(lift out at the bottom)

3 Remove the two gray foam pieces.

4 Pull out the dirty lters.

5 Slide the clean lters into place.

Keep an eye on the arrow for the airway.

6 Press and hold the lter reset button for at least 1 second.

User guide Danfoss Air ventilation units

BC465345765623en-010101

5 ERROR MESSAGE

Alarm Reason Handling

Yellow LED (30 /min.) and beep sound.

The unit continues to run, but with ad-

ditional power consumption and possible

noise nuisance due to increased pressure

loss in the dirty lter.

Filters are in need of replacement Change the lters and reset the lter timer

on the unit.

Red ashing LED (30/min.) and beep sound.

The unit continues to run in fail-safe mode,

with the supply air fan constantly run-

ning at the lowest speed (stage 1) and the

extract air fan constantly running at stage

1 or 2.

One of the following components is faulty

or has a poor connection:

• T3 extraction sensor

• T4 return sensor

One of the two fans is not reaching the

desired speed.

Inspect and replace the sensor kit if neces-

sary.

Check if the fans run smoothly and if the

wires have lost their connection.

The unit is not running and there is no light

in the control panel

The power is disconnected. Check that the power cable is tted cor-

rectly.

There is water around/under the unit A water trap has not been installed on the

drain as prescribed.

Check and install the water trap as pre-

scribed.

The drain nozzle on the aggrega or the

drain hose is frozen.

Install frost protection from the drain spout

of the unit all the way to the drain, possibly

using a heating cable (accessory).

The drain is blocked in the hose or in the

drip tray inside the unit.

Check that the drain is not blocked and

clean with water and washing-up liquid if

necessary.

The unit makes abnormal noise Fan level 4 is running (only intended to run

for a short period of time)

Turn the unit down to level 1, 2, 3 or acti-

vate automatic demand control.

The lter is blocked. Check and change the lter if necessary

The airway may be partially blocked Check that air inlets and ducts are not

blocked by external elements.

The unit is not regulated correctly. Make sure the unit is properly registered.

BC465345765623en-010101

Danfoss 010101 Air Ventilation Units User guide

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