AirSource CustomAir Manual de instrucciones de instalación, funcionamiento y mantenimiento - Página 11

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AirSource CustomAir Manual de instrucciones de instalación, funcionamiento y mantenimiento

Condensate

Drains

All condensate drains on the AHU require a suitable

All condensate drains on the AHU require a suitable trap. Drain locations are shown

our drawing. It is important to select the correct type and depth of trap otherwise a

build-up of condensate may occur

water prior to start-up.

It is recommended to

use large radius swept

bends to avoid air

locks. Ensure all pipes,

including drain

connections from the

A.H.U. fall to drain.

COMMISSIONING

SIONING & TESTING

General

All units require airside commissioning on site.

All units require airside commissioning on site. The fans should be operated in hand

to commission the air volume.

Fans

Pre-Start Checks

After assembly of the AHU

General Arrangement drawing for specific details. Isolate electric supply to f

General Arrangement drawing for specific details. Isolate electric supply to fan-motor

before entering the fan section.

 Check for any visible damage to the fan impeller and mounting assembly

Check for any visible damage to the fan impeller and mounting assembly

 Check that anti-vibration mountings are level and that bolts are tight

 Check motor terminal cover is secure and that bolts are tight.

Check motor terminal cover is secure and that bolts are tight.

 Ensure all left over installation materials and other foreign objects have

been removed from the fan cavity.

Test Run

Test run the motor and drive to ensure that the fan is rotating in the correct direction

as identified by the arrow on the fan scroll. If the rota

as identified by the arrow on the fan scroll. If the rotation is in reverse, stop th

and reverse any two incoming supply lines to the motor or starter (3 phase supply).

Check that the current being drawn by the motor does not exceed

Check that the current being drawn by the motor does not exceed the motor full load

current. Note! All access panels must be closed durin

. Note! All access panels must be closed during this test, otherwise false

readings will be obtained.

Speed

Follow the instructions in the manual for the inverter. Check rotational d

Follow the instructions in the manual for the inverter. Check rotational direction and

Controlled change polarity of electrical supply by reversing any two incoming supply lines to the

polarity of electrical supply by reversing any two incoming supply lines to the

Fans

motor to change direction if required. Set the inverter frequency as indicated on the

AHU general arrangement drawing.

HU general arrangement drawing.

Packaged If the unit is complete with a factory provided control panel and the fan directions are

If the unit is complete with a factory provided control panel and the fan directions are

Controls

incorrect, it is recommended that the polarity of the unit be changed at the incoming mains.

incorrect, it is recommend

This will then keep other equipment such as compressors in synchronisation. The unit will be

provided with a specific wiring diagram located in the control panel. A controls philosophy will

also be provided to the contractor.

. It is important to select the correct type and depth of trap otherwise a

f condensate may occur. IMPORTANT: Ensure that the trap is charged with

AHU, the following checks should be made. Refer to

, the following checks should be made. Refer to data chart on

vibration mountings are level and that bolts are tight

l left over installation materials and other foreign objects have

incoming supply lines to the motor or starter (3 phase supply).

ed that the polarity of the unit be changed at the incoming mains.

trap. Drain locations are shown on

trap is charged with

The fans should be operated in hand

tion is in reverse, stop the motor

the motor full load

g this test, otherwise false

Installation, Operation & Maintenance Manual

stallation, Operation & Maintenance Manual