NuTone ZN110HL Bedienerhandbuch PDF herunterladen (Seite 13)

ZN110HL Installation Guide

Page 13

Service Parts

Order replacement

parts by Part No.,

not by Key No.

Key No. Part No. Description

1 97018349 Mounting Frame

2 97018721 Knockout Plate & Screws

3 97018382 Housing

4 97018474 Wiring Panel/Harness Assembly

5 97019014 Humidity Control Assembly & Grille Assembly

(includes 10, 11)

6 97018756 Control Assembly & Motor

7 97018331 Duct Connector - 6"

8 99020301 Blower Wheel

9 97018768 Scroll Assembly

10 99140208 Grille Spring (2 req’d)

11 99111542 Lens

12 99271381 Bulb, GU24 18W 3500K Fluorescent (2 req’d)

Troubleshooting

Before continuing, turn off power as previously noted in WARNING

and CAUTION sections on the previous page.

Symptom: Fan does not run.

• Check for an open fuse or circuit breaker in building’s service

panel.

• Check two (2) plug-in connections for Motor and its Control are

seated firmly in place.

• Check two (2) plug-in connections for Sensor and its Control

are seated firmly in place.

• Check that Blower Wheel spins freely.

Symptom: Humidity mode does not operate fan at certied air

ow rate.

• Check two (2) plug-in connections for Sensor and its Control

are seated firmly in place.

Symptom: Fan runs erratically.

• Check that Blower Wheel is firmly attached to Motor shaft and

both spin freely.

Symptom: Fan seems noisy.

• Check that back draft damper in fan’s Duct Connector pivots

freely. Screws used to attach duct to Duct Connector may

prevent damper from opening.

• Check that back draft damper in wall or roof cap pivots freely.

Dampers are sometimes mistakenly painted shut or obstructed

by bird or insect debris.

Symptom: Fan does not properly ventilate room.

• For spot ventilation, turn both master switch and sensor/control

wall switch ON, so sensor/control operates fan at certified

airflow rate.

• For spot ventilation followed by continuous ventilation, increase

the “TIME” setting of user-adjustable time delay.

• For continuous ventilation, increase “CFM” setting of user-

adjustable airflow rate.

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