aero pure AP90-S - User Manual

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VENTILATION FAN

MODEL: AP90-S & AP90H-S

AP120-S & AP120H-S

WARNING

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, PLEASE READ THE FOLLOWING:

1.Use this unit only in the manner intended by the manufacturer. If you have questions, contact the manufacturer at the address or

telephone number listed in the warranty. 2. Before servicing or cleaning unit, switch power off at service panel and lock the service

disconnecting means to prevent power from being switching on accidentally. If the service disconnecting means cannot be locked,

securely fasten a prominent warning device, such as a tag, to the service panel. 3. Installation work and electrical wiring must be

done by a licensed person(s) in accordance with all applicable codes and standards, including fire-rated construction codes and

standards. 4. Sufficient air is needed for proper combustion and exhausting of gases through the flue (chimney) of fuel burning

equipment to prevent backdraft. Follow the heating equipment manufacturer’s guideline and safety standards such as those

published by the National Fire Protection Association (NFPA), and the American Society for Heating, Refrigeration and Air

Conditioning Engineers (ASHRAE), and the local code authorities. 5. When cutting or drilling into wall or ceiling, do not damage

electrical wiring and other hidden utilities. 6. Ducted fans must always be vented to the outdoors. 7. Acceptable for use over a tub or

shower when connected to a GFCI (Ground Fault Circuit Interrupter) protected branch circuit (ceiling installation only). 8. This unit

must be grounded. 9. Never place a switch where it can be reached from a tub or shower. 10. Not for use in kitchens. This unit may

be installed in a wall for a non- wet application. 11. Install fan at least 2.5 m (8 feet) above the floor. 12 WARNING: To reduce the risk

of fire or electric shock, do not use this fan with any solid-state speed control device. 13. The fan must not be installed in a ceiling

thermally insulated to a value greater than R40.

CAUTION

1. For general ventilating use only. Do not use to exhaust hazardous or explosive materials and vapors.

2. This product is designed for installation in ceilings up to a 12/12 pitch (45 degree angle). Duct connector must point up for wall

application.

3. To avoid motor bearing damage and noisy and/or unbalanced impellers, keep drywall and construction dust off power unit.

4. Please read specification label on product for further information and requirements.

CLEANING & MAINTENANCE

For quiet and efficient operation, long life, and attractive appearance, lower or remove grille and vacuum interior of unit with the

dusting brush attachment. The motor is permanently lubricated and never needs oiling.

OPERATION

Use an on/off switch to operate this fan. See “Connect Wiring” for details.

The humidity control and fan can be operated separately. Use a 1- or 2- function wall control. Do not use a dimmer switch

to operate the humidity control. See “Connect Wiring” for details.

SENSOR OPERATION FOR AP120H-S

The humidity-sensing fan uses a sophisticated humidity sensor that responds to: (a) rapid to moderate (user-adjustable)

increases in humidity or (b) humidity above a user-adjustable set-point (50%-100% relative humidity). The humidity sensor

may occasionally turn the fan ON when environmental conditions change. If the fan continuously responds to changing

environmental conditions, “H” (means “humidity”) adjustment may be required. This figure is factory-set for about 75% RH.

SENSITIVITY ADJUSTMENT

The “H” has been factory set for most shower applications. However, if the fan is in a tub area or is being used for dampness

control, the “H” may need to be increased toward maximum “+”. If the control is responding too often to changing

environmental conditions, movement toward less “-” “H” may be required.

To adjust the “H”:

1. Disconnect power at service entrance.

2. Through the grille, locate the slot marked “H”.

3. Carefully rotate the “H” adjustment toward “+” or “-”.

4. Turn on power and check operation by turning on the shower or other humidity source until the fan turns on.

5. Repeat above steps if necessary.

When the temperature changes, humidity sensor values will have deviation.

TIMER ADJUSTMENT

The humidity sensing fan has a “T” (means timer) that can be adjusted from 5 to 60 minutes (factory-set at about 20 minutes).

This “T” controls the length of time that the fan remains ON after the sensor has stopped sensing a rise in humidity

and the humidity level is below the user-adjustable set-point. To adjust the “T”:

1. Disconnect power at service entrance;

2. Through the grille, locate the slot marked “T”;

3. Carefully rotate the “T” adjustment to desired setting (from 5 to 60 minutes).

4. Check operation by turning on a humidity source until the fan turns on.

5. Turn humidity source off and time the unit.

6. Repeat above steps if necessary.

READ AND SAVE THESE INSTRUCTIONS

Installer: Leave this manual with the homeowner

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Summary

Operation

Humidity Sensor Operation

Details on the humidity sensor's response and adjustment for AP120H-S models.

Sensitivity Adjustment

How to adjust the humidity sensor's sensitivity for optimal performance.

Timer Adjustment

How to adjust the fan's run time after humidity detection ceases.

Assembly Instructions

Mounting with Holes and Hanger Bar

Instructions for mounting the fan housing using pre-drilled holes and hanger bars.

Mounting with Hanger Bars Only

Instructions for mounting the fan housing using only hanger bars.

Mounting to I-joist

Specific instructions for mounting the fan housing to an I-joist.

Ductwork and Wiring

Install Ductwork

Guidance on connecting ductwork for optimal airflow, noise, and energy efficiency.

Connect Electrical Wiring

Instructions for wiring the fan, with diagrams for AP120-S and AP120H-S.

Install Grille

Steps for attaching the grille assembly to the fan housing.

Service Parts and Warranty

Service Parts List

List of available replacement parts for the ventilation fan.

Warranty Information

Details on the product's limited warranty coverage and exclusions.

Overview

This document describes the Aero Pure AP90-S, AP90H-S, AP120-S, and AP120H-S ventilation fans, providing detailed instructions for installation, operation, maintenance, and safety.

The primary function of these devices is to provide ventilation, designed for general ventilating use in ceilings up to a 12/12 pitch (45-degree angle). They are suitable for use over a tub or shower when connected to a GFCI (Ground Fault Circuit Interrupter) protected branch circuit, but only for ceiling installations in such wet areas. It is explicitly stated that these fans are not to be used in kitchens and should not be installed in a cooking area or directly above or inside it. For wall applications, the duct connector must point upwards. The fan should be installed at least 2.5 meters (8 feet) above the floor.

Several usage features are highlighted. The fan operates with an on/off switch. For models AP90H-S and AP120H-S, the humidity control and fan can be operated separately, requiring a 1- or 2-function wall control. A dimmer switch should not be used to operate the humidity control. These models incorporate a sophisticated humidity sensor that responds to rapid to moderate (user-adjustable) increases in humidity or humidity levels above a user-adjustable set-point (50%-100% relative humidity). The humidity sensor may occasionally activate the fan when environmental conditions change. If the fan continuously responds to changing environmental conditions, the "H" (humidity) adjustment may need to be modified. The factory setting for humidity is approximately 75% RH, suitable for most shower applications. However, if the fan is in a tub area or used for dampness control, the "H" may need to be increased towards maximum ("+") or decreased towards minimum ("-") if the control is responding too often. The adjustment involves disconnecting power, locating the "H" slot through the grille, carefully rotating the adjustment, and then checking operation.

Additionally, the humidity-sensing fans include a "T" (timer) function, adjustable from 5 to 60 minutes, with a factory setting of about 20 minutes. This timer controls how long the fan remains on after the sensor stops detecting a rise in humidity and the humidity level drops below the user-adjustable set-point. Adjusting the timer also requires disconnecting power, locating the "T" slot through the grille, rotating it to the desired setting, and then checking the operation by turning on a humidity source and timing the unit.

Installation involves several steps. Before installation, users need to identify the appropriate screws and hanger bar lengths. The fan can be mounted using mounting holes and hanger bars, or with hanger bars only, or specifically to I-joists. The instructions provide different options for hanger bar placement depending on the distance between framing members. Ductwork connection is crucial for proper performance. Round ductwork (not included) should be connected to the damper/duct connector and routed to a roof or wall cap (not included). Duct tape is used to secure connections for airtightness. Insulated flexible duct is recommended for quiet operation, or a short section of insulated flexible duct if rigid duct is used. The document emphasizes keeping duct runs short and straight to maximize airflow, minimize noise, and reduce energy use. Electrical wiring involves running 120V AC house wiring to the fan's location using UL-approved connectors. Wiring diagrams are provided for both standard and humidity-sensing models. Finally, the grille is installed after ceiling construction is complete by pinching its springs and positioning it into the housing slots.

Maintenance features are simple and designed for long-term, quiet, and efficient operation. For cleaning, the grille can be lowered or removed, and the interior of the unit can be vacuumed using a dusting brush attachment. The motor is permanently lubricated and does not require oiling, simplifying maintenance.

Safety warnings are extensive and critical. Users are instructed to use the unit only as intended by the manufacturer. Before servicing or cleaning, power must be switched off at the service panel and locked to prevent accidental re-energization. Installation and electrical wiring must be performed by licensed personnel in accordance with all applicable codes and standards, including fire-rated construction codes. Adequate air supply is necessary for proper combustion and exhausting of gases from fuel-burning equipment to prevent backdraft, following guidelines from NFPA, ASHRAE, and local code authorities. Users must avoid damaging electrical wiring or other hidden utilities when cutting or drilling into walls or ceilings. Ducted fans must always vent to the outdoors. The unit must be grounded. Switches should not be placed where they can be reached from a tub or shower. The fan should not be used with any solid-state speed control device. Finally, the fan must not be installed in a ceiling thermally insulated to a value greater than R40. The manual also warns against using the fan to exhaust hazardous or explosive materials and vapors.