Accurex XUEF-300 설치, 운영 및 유지보수 매뉴얼 - 페이지 11

{카테고리_이름} Accurex XUEF-300에 대한 설치, 운영 및 유지보수 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Accurex XUEF-300 20 페이지. Utility fans

페이지 인쇄

Unit Start-Up

WARNING

Disconnect and secure to the OFF position all

electrical power to the fan prior to inspection

or servicing. Failure to comply with this safety

precaution could result in serious injury or death.

DANGER

Pour écarter les risques de blessure grave ou

de mort, débrancher et verrouiller l'alimentation

électrique en position « Arrêt » avant tout contrôle

ou entretien.

Visual Inspection of Equipment

The equipment type and arrangement should be

veriﬁed as ordered at once when it arrives at the

jobsite. When a discrepancy is found, the local

representative must be notiﬁed immediately so

that corrective action may be investigated. Verify

electrical conformance to speciﬁcations. Unauthorized

alterations and unauthorized backcharges will not be

recognized by manufacturer.

After the unit has been assembled, installed and all

utilities have been hooked up, the unit is ready for

operation.

Check

Before starting the unit, check the following:

1. Conﬁrm that building supply voltage matches the

voltage for which the unit is wired.

2. Check all piping and wiring penetrations made by

contractors for water tightness. All penetrations

must be made watertight to prevent water

damage to the unit and building.

3. Rotate the fan wheel manually to be sure that it

is free to operate. Remove any dirt or debris that

may have accumulated during installation.

4. Check the fan bearing setscrews for tightness.

5. Check alignment of sheaves and V-belts. See

Belt Drive Maintenance section.

6. Inspect all fasteners to ensure that none have

loosened during shipment.

7. Check ﬂex coupling for proper alignment and

connect between motor shaft and fan shaft

(direct drive).

8. Check all guarding to ensure that it is securely

attached and not interfering with rotating parts.

9. Check all electrical connections for proper

attachment.

10. Check housing and ductwork, if accessible,

for obstructions and foreign material that may

damage the fan wheel.

11. Fill drainage piping trap.

Additional Steps for Initial Start-Up

1. Check for proper wheel

rotation by momentarily

energizing the fan. Access to

view the wheel can be gained

through the blower housing

access panel.

One of the most frequently encountered problems

are motors that are wired to rotate the wheel in

the wrong direction. This is especially true with

3-phase installations where the motor will run in

either direction, depending on how it has been

wired. To reverse rotation of a 3-phase motor,

interchange any two of the three electrical leads.

Single phase motors can be reversed by changing

internal connections as described on the motor

label or wiring diagram.

2. Fans with multi-speed motors should be checked

on low speed during initial start-up.

3. Check for unusual noise, vibration or overheating

of bearings. Refer to the "Troubleshooting" section

of this manual if a problem develops.

4. Grease may be forced out of the bearing seals

during initial start-up. This is a normal self-purging

feature for the type of bearing used on this

product.

NOTE

Model XUEF units should be operated only when

attached to the system for which they were

designed. Without proper system static pressure,

the motor could be overloaded.

Model XUEFD-100-BI - Three-phase

This unit ships with the variable frequency drive (VFD)

preprogrammed based on selected performance. No

additional programming is required.

1. To operate, turn disconnect on and allow VFD to

power up.

2. Once VFD display is shown, press LO/RE button

which will switch control from remote to local.

3. If necessary, use vertical arrows to scroll through

display screens to ﬁnd frequency reference F.

4. Frequency should be programmed from factory.

To balance system (by adjusting frequency), press

Enter and use vertical arrows and Reset / > button

until desired frequency is achieved. Press Enter to

set frequency.

5. Press Run to start fan.

6. If additional adjustment is required, press Stop and

repeat steps 3-4.

Utility Fans