Carrier operating and maintanance Betriebsanleitung PDF herunterladen (Seite 23)

10.7. Dampers

10.8. Air Filters

10.9.1. General

10.9.2. Electric Heaters

10.9. Heaters

-Check if the actuator motor is installed in accordance

with the supplier’s instructions.

-Check if the correct angle has been set.

-Check if the dampers close properly.

-Check if the damper can open to the required an-

gle.

-Check operation after the power has been restored-

following a power cut. Some dampers must be open,

others must be closed.

4.2 - Dampers

- Check if the actuator motor is installed in accordance

with the supplier’s instructions.

- Check if the correct angle has been set.

- Check if the dampers close properly.

- Check if the damper can open to the required angle.

- Check operation after the power has been restored

following a power cut. Some dampers must be open,

others must be closed.

4.3 - Air filters

- Check if the correct filters have been installed.

- Check if the filters have been installed correctly.

- Absolute filters are supplied separately, to prevent

contamination during transport and start-up. Insert the

absolute filters only after the unit has been cleaned.

- Set pressure switches or filter indicators, if used.

- Close the inspection door.

4.4 - HEATERS

4.4.1 - General

- Check connections in accordance with the dimensional

drawing.

- Check connections for leakage.

- Ensure that the heater can supply heat to prevent frost

formation when the fan is started.

- Caution: When the coils are drained, no water must

remain in the circuits to prevent freezing at temperatures

below zero.

4.4.2 - Electric heaters

- Ensure that the heater has been connected in accordance

with the instructions of the supplier. The diagram is

located on the inside of the connection module.

- Check the heater current.

- Check if the safety devices shown in the wiring diagram

have been installed.

- Check if the heater has been earthed in accordance with

local instructions.

- The electric heater may only be switched on if the

minimum specified air flow rate across the heater exists.

- The electric heater must be switched off at least 5 minutes

before the AHU is switched off.

- Ensure that no objects have been left in the heater section.

- The following warning pictograms are attached to the

panel: electrical voltage and hot surface.

4.4.3 - Steam heaters

Steam heaters have surface temperatures above 100ºC.

Steam supply must be checked by qualified personnel.

- The steam heater may only be switched on if the

minimum specified air flow rate exists across the heater.

- Ensure that no objects have been left in the heater section.

- The steam heater must be switched off at least 5 minutes

before the AHU is switched off.

- The following warning pictogram is attached to the panel:

hot surface.

Manual operation Actuator-assisted operation

-Check if the correct filters have been installed.

-Check if the filters have been installed correctly.

-Absolute filters are supplied separately, to prevent

contamination during transport and start-up. Insert

the absolute filters only after the unit has been

cleaned.

-Set pressure switches or filter indicators, if used.

-Close the inspection door.

-Filter installation details shown in Appendix 2.

-According to the filter and application type number

of filters usual with listed in Appendix 3.

4.2 - Dampers

- Check if the actuator motor is installed in accordance

with the supplier’s instructions.

- Check if the correct angle has been set.

- Check if the dampers close properly.

- Check if the damper can open to the required angle.

- Check operation after the power has been restored

following a power cut. Some dampers must be open,

others must be closed.

4.3 - Air filters

- Check if the correct filters have been installed.

- Check if the filters have been installed correctly.

- Absolute filters are supplied separately, to prevent

contamination during transport and start-up. Insert the

absolute filters only after the unit has been cleaned.

- Set pressure switches or filter indicators, if used.

- Close the inspection door.

4.4 - HEATERS

4.4.1 - General

- Check connections in accordance with the dimensional

drawing.

- Check connections for leakage.

- Ensure that the heater can supply heat to prevent frost

formation when the fan is started.

- Caution: When the coils are drained, no water must

remain in the circuits to prevent freezing at temperatures

below zero.

4.4.2 - Electric heaters

- Ensure that the heater has been connected in accordance

with the instructions of the supplier. The diagram is

located on the inside of the connection module.

- Check the heater current.

- Check if the safety devices shown in the wiring diagram

have been installed.

- Check if the heater has been earthed in accordance with

local instructions.

- The electric heater may only be switched on if the

minimum specified air flow rate across the heater exists.

- The electric heater must be switched off at least 5 minutes

before the AHU is switched off.

- Ensure that no objects have been left in the heater section.

- The following warning pictograms are attached to the

panel: electrical voltage and hot surface.

4.4.3 - Steam heaters

Steam heaters have surface temperatures above 100ºC.

Steam supply must be checked by qualified personnel.

- The steam heater may only be switched on if the

minimum specified air flow rate exists across the heater.

- Ensure that no objects have been left in the heater section.

- The steam heater must be switched off at least 5 minutes

before the AHU is switched off.

- The following warning pictogram is attached to the panel:

hot surface.

Manual operation Actuator-assisted operation

-Check connections in accordance with the dimen-

sional drawing.

-Ensure that the heater has been connected in ac-

cordance with the instructions of the supplier. The

diagram is located on the inside of the connection

module.

-Check the heater current.

-Check if the safety devices shown in the wiring dia-

gram have been installed.

-Check if the heater has been earthed in accordance

with local instructions.

-The electric heater may only be switched on if the

minimum specified air flow rate across the heater

exists.

-The electric heater must be switched off at least 5

minutes before the AHU is switched off.

-Ensure that no objects have been left in the heater

section.

-The following warning pictograms are attached to

the panel: electrical voltage and hot surface.

Electrical voltage

This pictogram indicates that there are electrical components

behind this access cover, door or panel that may be dangerous

for the user/installer. Only personnel qualified in accordance

with NEN 3140 is permitted to carry out work on these

components. The pictogram is attached to the access cover

for the electric heater control box.

Removal of transport brackets

This pictogram is located at the bottom of the fan section. It

indicates that the transport brackets must be removed during

commissioning before the fan is started up.

Verwijder transportbeugels voor opstarten ventilator.

Remove transport brackets before starting up the fan.

Retirer les fixations de transport avant démarrage.

Central data

This label contains the data for the AHU, such as order

number, position number etc. If present, the label is normally

located on the access cover or the door of the fan assembly.

Opening the fan door

This pictogram is positioned on the outside of the door or

access cover of the fan assembly. This pictogram warns that

the fan must have been switched off and deenergised for a

minimum of two minutes before the door or access cover is

opened.

Lifting and transport

An instruction is attached to the AHU that describes the

procedures that must be followed for lifting and transport.

The following chapter contains further details.

1.4 - Disposal of parts/materials

- The packaging material must be disposed of in a responsible

manner and in accordance with local regulations.

- Components that are replaced, must be disposed of as

described above.

2 - TRANSPORT AND LIFTING INSTRUCTIONS

2.1 - General

Transport and lifting of the AHU must always be in

accordance with the instructions below. If these instructions

are not observed, irreparable damage may occur to the unit,

and people in the immediate vicinity of the unit are also

endangered. Alarko Carrier does not accept any

responsibility if these instructions are not observed. Transport

and lifting must be carried out by qualified personnel. The

AHU must only be lifted with lifting bars supplied by

Alarko Carrier. Lifting must be carried out in

accordance with local regulations and with the help of

certified lifting aids.

2.2 - Transport and storage

Lifting of the AHU is only permitted under the designated

lifting points. Lifting under the cross beams is prohibited.

This applies to transport as well as storage, and is indicated

on the cross beam with the following label.

! WARNING!

Before opening doors, switch off and deenergise the

fan, and ensure that it has stopped rotating.

(minimum of 2 minutes)

Caution: All doors and access covers must be closed before

starting up the AHU.

1 - SAFETY CONSIDERATIONS

1.1 - General

The 39HQ air handling units (AHUs) has been designed

and manufactured in accordance with the CE machine

directive EN292. In order to guarantee safe operation and

use of the unit, please carefully read and observe the

instructions in this document and pay special attention to

the warnings that apply to this unit. Any modifications in

the design and/or installation of the AHU that are carried

out without discussion with Alarko Carrier and

without advance written agreement will result in the loss of

the right to any warranty claims and any claim for injury to

personnel as a result of these modifications.

Maintenance procedures may only be carried out by

qualified personnel.

Heating and cooling elements are manufactured and

supplied in accordance with guidelines of the Pressure

Equipment Directive (PED).

1.2 - Applications

The AHU is designed for the movement and conditioning

of air, unless otherwise agreed during the design stage.

1.3 - Instruction types

The following warning pictograms and labels with text are

used.

Lifting point

This pictogram shows where the AHU must be lifted and is

positioned on the support beam.

Lifting prohibited

This pictogram shows that no horizontal transport devices

must be placed under this frame section, such as pallet

lifters or the forks of fork lift trucks. It is also forbidden to

place lifting devices for transport and storage under this

frame element.

Earthing

This pictogram indicates where the AHU must be earthed

and is on one of the support beams beneath the casing in

the fan section.

- The electrical components in the AHU must be earthed,

except for components with double insulation and/or

components with a supply voltage below 50 V.

- The electrical components must be installed in accordance

with national and local regulations.

Rotating parts

This pictogram indicates that there are rotating parts behind

this access cover, door or panel which may cause injury. The

components that include rotating parts are the fan and heat

recovery wheel. If there are special customer-specific

components behind doors, access covers or panels that

include rotating parts and pose a potential risk, this is also

indicated by this pictogram.

Hot surfaces

This pictogram indicates that there are components behind

this access cover, door or panel that can cause serious burns

when touched.

The components that may have hot surfaces are the steam

humidifier, steam heater and the electric heater. If there are

special special customer-specific components behind doors,

access covers or panels that have hot surfaces and pose a

potential risk, this is also indicated by this pictogram.

Steam heaters have surface temperatures above

100ºC. Steam supply must be checked by qualified

personnel.

-The steam heater may only be switched on if the

minimum specified air flow rate exists across the

heater.

-Ensure that no objects have been left in the heater

section.

-The steam heater must be switched off at least 5

minutes before the AHU is switched off.

-The following warning pictogram is attached to the

panel: hot surface.

-Check connections for leakage.

-Ensure that the heater can supply heat to pre-

vent frost formation when the fan is started.

-Caution: When the coils are drained, no water

must remain in the circuits to prevent freezing

at temperatures below zero.

1 - SAFETY CONSIDERATIONS

1.1 - General

The 39HQ air handling units (AHUs) has been designed

and manufactured in accordance with the CE machine

directive EN292. In order to guarantee safe operation and

use of the unit, please carefully read and observe the

instructions in this document and pay special attention to

the warnings that apply to this unit. Any modifications in

the design and/or installation of the AHU that are carried

out without discussion with Alarko Carrier and

without advance written agreement will result in the loss of

the right to any warranty claims and any claim for injury to

personnel as a result of these modifications.

Maintenance procedures may only be carried out by

qualified personnel.

Heating and cooling elements are manufactured and

supplied in accordance with guidelines of the Pressure

Equipment Directive (PED).

1.2 - Applications

The AHU is designed for the movement and conditioning

of air, unless otherwise agreed during the design stage.

1.3 - Instruction types

The following warning pictograms and labels with text are

used.

Lifting point

This pictogram shows where the AHU must be lifted and is

positioned on the support beam.

Lifting prohibited

This pictogram shows that no horizontal transport devices

must be placed under this frame section, such as pallet

lifters or the forks of fork lift trucks. It is also forbidden to

place lifting devices for transport and storage under this

frame element.

Earthing

This pictogram indicates where the AHU must be earthed

and is on one of the support beams beneath the casing in

the fan section.

- The electrical components in the AHU must be earthed,

except for components with double insulation and/or

components with a supply voltage below 50 V.

- The electrical components must be installed in accordance

with national and local regulations.

Rotating parts

This pictogram indicates that there are rotating parts behind

this access cover, door or panel which may cause injury. The

components that include rotating parts are the fan and heat

recovery wheel. If there are special customer-specific

components behind doors, access covers or panels that

include rotating parts and pose a potential risk, this is also

indicated by this pictogram.

Hot surfaces

This pictogram indicates that there are components behind

this access cover, door or panel that can cause serious burns

when touched.

The components that may have hot surfaces are the steam

humidifier, steam heater and the electric heater. If there are

special special customer-specific components behind doors,

access covers or panels that have hot surfaces and pose a

potential risk, this is also indicated by this pictogram.

10.9.3. Steam Heaters

Figure 50.

- Manual

operation

Figure 51.

- Actuator-

assisted operation

Figure 52.

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