System air Topvex TR Series Fehlerbehebungshandbuch

Document in original language | 151620 · A002

Topvex SR 09, 11, Topvex TR 09-15

Compact Air Handling Units

Operation and Maintenance Instructions GB

151620 | A002

E&OE

Systemair AB reserves the rights to alter their products without notice.

This also applies to products already ordered, as long as it does not affect the previously agreed specifications.

151620 | A002

Contents

1 Warnings.......................................................1

2 Product description..........................................2

2.1 Internal components Topvex SR 09,

11.......................................................2

2.2 Internal components Topvex TR 09-

15.......................................................3

2.3 Description of internal components ............4

2.3.1 Supply and extract air

fans ........................................4

2.3.2 Pressure sensor fans/

filter........................................4

2.3.3 Supply and extract air

filters.......................................4

2.3.4 Heat exchanger .........................4

2.3.5 Rotor motor ..............................4

2.3.6 Rotation guard...........................4

2.3.7 Switch module...........................4

2.3.8 Temperature sensor....................4

2.3.9 Water heating battery .................5

2.3.10 Electrical heater .........................5

2.4 Internal components electrical

connection box ......................................6

2.5 Free cooling description .... ... ... ... ... ...........7

3 Maintenance .. ... .............. ........... ....... ... ... ... ... .8

3.1 Important .............................................8

3.2 Maintenance intervals .............................8

3.3 Maintenance instructions .........................9

3.3.1 Changing supply/extract air

filter........................................9

3.3.2 Checking the rotating heat

exchanger ................................9

3.3.3 Checking the fans..................... 10

3.3.4 Checking the hot water

heating battery........................ 10

3.3.5 Checking the electrical heating

battery .................................. 10

3.3.6 Cleaning the extract louvres

and inlet diffusers..................... 10

3.3.7 Checking the outdoor air

intake .. ... ...... ....... .............. .... 10

3.3.8 Checking the duct

system .................................. 10

3.3.9 Changing the internal

battery .................................. 11

4 Troubleshooting............................................ 12

5 Service .......................................................12

Warnings |1

1 Warnings

The following admonitions will be presented in the different sections of the document:

Danger

• Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death or

serious injury.

Warning

• Indicates a potentially hazardous situation that may result in minor or moderate injuries.

Caution

• Indicates a risk of damaging the product or prevent optimal operation.

Important

• 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.

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2| Product description

2 Product description

2.1 Internal components Topvex SR 09, 11

Fig. 1 Internal components with air connections symbols (Drawn as a left hand unit)

Position Description Symbol

AConnection supply air

BConnection exhaust air

CConnection outdoor air

D Connection extract air

1Fan supply air

2 Fan extract air

3Filter supply air

4Filter extract air

5Heat exchanger

6 Rotor motor

7Control heat exchanger

8Extra driving belt

9Pressure sensor supply air fan/extract air filter

10 Pressure sensor extract air fan/supply air filter

11 Temp sensor extract air

12 Electrical connection box

13 Electrical re-heater battery1

14 Temp sensor exhaust air

15 Temp sensor outdoor air

16 Air flow sensor 1

1Only valid for units with electrical re-heater battery

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Product description | 3

2.2 Internal components Topvex TR 09-15

Fig. 2 Internal components with air connection symbols (Drawn as a left hand unit)

Position Description Symbol

AConnection supply air

BConnection exhaust air

CConnection outdoor air

D Connection extract air

1Fan supply air

2 Fan extract air

3Filter supply air

4Filter extract air

5Heat exchanger

6 Rotor motor

7Control unit heat exchanger

8Extra driving belt

9Pressure sensor supply air fan/extract air filter

10 Pressure sensor extract air fan/supply air filter

11 Temp sensor extract air

12 Electrical connection box

13 Electrical re-heater battery1

14 Temp sensor exhaust air

15 Temp sensor outdoor air

16 Air flow sensor 1

1Only valid for units with electrical re-heater battery

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4| Product description

2.3 Description of internal components

2.3.1 Supply and extract air fans

The fans have external rotor motors of EC type which are steplessly controlled individually by setting the control signal

to a fixed value. It is possible to program the speed in 2 steps (normal/reduced) depending on the programming of the

week schedule. The motor bearings are life time lubricated and maintenance free. It is possible to remove the fans for

cleaning, see chapter 3 for more information.

2.3.2 Pressure sensor fans/filter

Two pressure sensors are installed (figure 1, figure 2), each of the sensors has two functions. One function is to meas-

ure the differential pressure over the inlet cone of the fan impellers to maintain the airflow at constant level (CAV func-

tion as standard). The other function, is to measure the differential pressure over the supply and extract air filters so

that when the pressure drop reaches the set value, an alarm is triggered in the main regulator, which indicates that the

filter needs to be replaced.

2.3.3 Supply and extract air filters

The filters are of bag filter type with filter quality ePM1 60% (F7) for the supply air filter and ePM10 60% (M5) for the

extract air filter. The filters need to be replaced when polluted. New sets of filters can be acquired from your installer or

wholesaler.

2.3.4 Heat exchanger

Topvex SR/TR models are equipped with a highly efficient, belt driven, rotating heat exchanger. Required supply air

temperature is therefore normally maintained without adding additional heat. The operation of the heat exchanger is

automatic and depends on the set temperature. An extra driving belt is included on the rotor on delivery (pos. 8 figure

1 ,figure 2).

The Topvex TR heat exchanger is removable for cleaning and maintenance, see chapter 3 for more information.

2.3.5 Rotor motor

The rotor motor drives the exchanger rotor with an infinitely rpm as long as there is a heat demand. The motor is con-

trolled by an analogue 0-10V control signal (pos.6 figure 1 and figure 2).

2.3.6 Rotation guard

A built-in rotation guard in the heat exchanger control registers the rotation of the heat exchanger rotor. If the heat ex-

changer stops when there is a heat/cooling demand the exchanger controller gives an alarm signal to the main

controller.

2.3.7 Switch module

A switch module with HMI and 2 TCP/IP connections is mounted in the heat recovery units. Connection is made through

the panel outlet in the air handling unit (see figure 4).

Note:

24V HMI connection dedicated for the display. The connection is only for HMI and no other

connections is permitted.

2.3.8 Temperature sensor

4 temperature sensors (PT1000) are included in the unit from factory. The sensors are as follows:

• Supply air sensor

• Extract air temperature sensor

• Outdoor air temperature sensor

• Efficiency temperature sensor

The supply air sensor is loosely delivered with the unit and needs to be installed in the supply air duct externally from

the unit. See Installation instructions for more information.

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Product description | 5

2.3.9 Water heating battery

In units with built in water heating battery the hot water coil is located next to the supply air connection. The hot water

coil can be either HWL (hot water coil, low power) or HWH (hot water coil, high power). The coil material is copper pip-

ing with a frame of galvanized sheet steel and aluminium fins. The coil is equipped with venting and immersion sensor

for frost protection.

2.3.10 Electrical heater

In units with built in electrical heater the heating rods are located after the supply air fan in the airflow direction. The

material is stainless steel. The electric heating coil has both automatic and manual overheating protection. The manual

overheat protection is reset by pushing the red button on the electrical heater frame (figure 3). The power demand of

the electric heating coil is controlled by the main regulator, which controls the heat steplessly by a TTC triac control ac-

cording to the desired supply/extract or room air temperature that is set in the control panel.

Danger

• Make sure that the mains power supply to the unit is disconnected before performing any maintenance

or electrical work!

• All electrical connections must be carried out by an authorized installer and in accordance with local rules

and regulations.

Fig. 3 Reset of the manual over heat protection in Topvex TR 09-15 and Topvex SR 09, 11

For removal of filter on TR 09-15 see chapter 3.3.1

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6| Product description

2.4 Internal components electrical connection box

Danger

• Make sure that the mains power supply to the unit is disconnected before performing any maintenance

or electrical work!

• All electrical connections must be carried out by an authorized installer and in accordance with local rules

and regulations.

Topvex SR/TR are equipped with a built in regulator and internal wiring (figure 4).

The figure shows the electrical connection box for the Topvex TR 09-15 units. The connection box for the SR 09, SR 11

has the same layout and components with the difference that the electrical heater is situated in a separate

compartment.

Fig. 4 Electric components

Position description

1Control unit CU283W-4

2Transformer 230/24V AC

3Terminals for internal and external components

4Terminals for internal wiring

5Terminals for mains power supply to the unit

6Contactor (K2) Pump control water (HW units

only, not used in EL-units)

7Automatic fuse

8Automatic fuse for EL heater

9Contactor (K3) EL heater

10 Automatic over heat protection (EL units)

11 Manual over heat protection reset (EL units)

12 TTC EL heater control (EL units)

13 Switch module

14 Panel outlet

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