Operating instructions

ManualsBrandsAmerican Standard ManualsHumidifier300A

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MAINTENANCE INSTRUCTIONS for

HUMIDIFIER MODEL *HUMD500APA00B

MODEL *HUMD500APA00B

(First letter may be preceded by an “A” or “T”) (Parts Only)

Models Less Than 20 Tons for Residential Use*

This limited warranty is extended by the manufacturer to the original purchaser and to

any succeeding owner of the real property to which the humidifier is originally affixed and

pplies to products purchased and retained for use within the U.S.A. and Canada.

The limited warranty period begins when installation is complete and the unit start-up

procedure has been properly completed, verified by installer’s invoice or similar

document. If installation completion and start-up date cannot be verified by installer’s

invoice or similar document, limited warranty coverage begins six (6) months after the

date of manufacture based on the humidifier serial number.

If any part of your humidifier (with the exception of the Water Panel Evaporator) fails because

of a manufacturing defect within five (5) years from the date the limited warranty period

begins, Warrantor will furnish without charge the required replacement part . Any local

transportation, related service labor, mechanical filters, and diagnosis calls, are not included.

This limited warranty does not apply if the humidifier was purchased direct (i.e. from internet

websites or auctions) on an uninstalled basis. Additionally, this limited warranty will not apply

unless the humidifier is: (1) installed by a licensed or qualified HVAC technician, (2) applied

and installed in accordance with the manufacturer’s recommendations in its Installer’s

Guide, and (3) in compliance with all industry standards, national, state, and local codes.

This limited warranty does not cover your humidifier if it is damaged while in your

possession; including, but not limited to (1) damage caused by unreasonable use of the

humidifier, (2) damage from failure to properly maintain the humidifier as set forth in the

Use and Care manual, (3) damage that is not considered a manufacturing defect, such as

acts of God, malfunctions or failures resulting from fire, water, storms, lightning,

earthquake, theft, riot, misuse, abuse, increased utility usage costs, or (4) performance

problems due to improper selection / equipment match-up, installation, or application.

THE LIMITED WARRANTY AND LIABILITY SET FORTH HEREIN ARE IN LIEU OF ALL

OTHER WARRANTIES AND LIABILITIES, WHETHER IN CONTRACT OR IN NEGLEGENCE,

EXPRESSED OR IMPLIED, IN LAW OF IN FACT, INCLUDING IMPLIED WARRANTIES OF

MERCHANTABILITY AND FITNESS FOR PARTICULAR USE, AND IN NO EVENT SHALL

WARRANTOR BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES.

Some states do not allow limitations on how long an implied limited warranty lasts or do

not allow the exclusion or limitation of incidental or consequential damages, so the above

limitation or exclusion may not apply to you. This limited warranty gives you specific legal

rights, and you may also have other rights which vary from state to state.

Parts will be provided by our factory organization through an authorized service

organization in your area listed in the yellow pages. If you wish further help or information

concerning this limited warranty, contact:

Residential Systems

6200 Troup Highway

Tyler, TX 75707

Attention: Consumer Relations

Or visit our website: www.trane.com/residential

TW-1030-3308

*This limited warranty is for residential usage of this equipment and not applicable when this

equipment is used for a commercial application. A commercial use is any application where

the end purchaser uses the product for other than personal, family or household purposes.

LIMITED WARRANTY HUMIDIFIER

*HUMD200A, *HUMD300A, *HUMD500A

*MAY BE “A” OR “T”

. Humidifier Cover Assembly

2. Base Assembly

3. Evaporative Assembly

4. Distribution Tray

5. ”V” Notches

6. Humidifier Pad

7. Scale Control Insert

8. Drain Line

9. Power Cord

WARNING

Disconnect Electrical Power and Shut Off Water Supply Before

ervicing. Failure to follow this warning may cause property damage, personal injury or death.

CAUTION

urn Humidifier Control to “OFF” or lowest setting before servicing.

Sudden operation may cause personal injury or property damage.

1. Note Humidifier Control setting and turn dial to the “OFF” position.

2. Disconnect electrical power and turn off water supply.

3. Unlatch humidifier front cover assembly (1) from base assembly (2) at the bottom of the cover,

lift, and set aside.

4. Pull out the evaporative assembly (3) by grasping at the top and tipping out.

5. Unsnap the distribution tray (4) from the scale control insert (7). Follow the instructions below

depending upon the type of distribution tray in your humidifier:

For trays with a synthetic fabric liner: Lightly scrape out or brush off any mineral deposits,

being careful not to stretch or loosen the synthetic fabric liner. Soaking the tray in vinegar or

a lime-removing agent is helpful when trying to remove stubborn mineral deposits.

For trays with granular coating: Do not scrape off the granular coating, but lightly scrape out

any mineral deposits and clean the “V” notches (5). This textured surface helps ensure even

water flow for maximum performance. If the granular coating has been removed, replace

distribution tray.

6. Slide the Humidifier Pad (6) out from the scale control insert (7). Clean the scale control insert

of mineral deposits. Replace Humidifier Pad annually with a BAYPAD02A1310A Humidifier

Pad. Slide the Humidifier Pad back into the scale control insert with the colored spot up and

snap the distribution tray (4) back into place.

7. Inspect the plastic feed tube by gently flexing it and looking for cracks or signs of wear.

Replace tube if it is cracked, brittle, or has been damaged.

8. Reinstall the evaporative assembly (3) into the humidifier by fitting its drain into the round

receptacle at the base of the humidifier. Push the assembly in at the top between the

retaining ribs that hold the assembly in place in a vertical position.

9. Remove the drain line (8) from the bottom of the humidifier. If applicable, flex it to loosen any

mineral deposits or blockage. Then flush it with water under pressure. If it does not clear,

replace it. Slip drain line back onto the drain fitting. Make sure the drain line has a constant

downward slope and is not flattened or blocked.

10. Reinstall front cover assembly (1) by hooking at the top of the base assembly (2) and latching

at the bottom.

11. Reconnect electrical power (9) and turn on the water supply.

12. Check system operation:

Automatic Humidifier Control: (Automatic or Manual mode) Check system operation and

reset Change Humidifier Pad indicator by setting the knob to “Test/Reset”. With furnace

blower operating and furnace calling for heat, humidifier will operate for one minute. DO NOT

LEAVE IN TEST MODE AS HUMIDIFIER WILL NOT OPERATE.

13. Set Humidifier Control to its original position.

NOTE: The motor is permanently lubricated and does not need to be oiled.

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