GeneralAire 1042 Series - User Manual

1
PRECAUTION: The installer should be an experienced service technician. Disconnect electrical power before
beginning installation. Do not install where temperatures fall below 32 degrees F or where plenum temperatures
exceed 200 degrees F. When wiring into a multi-speed blower circuit see Step 7D.
GENERALAire
RESIDENTIAL AIR TREATMENT PRODUCTS
FOR INSTALLATION ON A VERTICAL
PLENUM SURFACE OF ANY
FORCED AIR FURNACE
INSTALLER: PLEASE FILL OUT AND MAIL GUARANTEE CARD AFTER INSTALLATION
IS COMPLETE. LEAVE INSTALLATION
INSTRUCTIONS WITH HOME OWNER
INSTALLATION: The humidifier may be mounted with
the 6" outlet to the right or left by inverting the cabinet and
reversing the positions of the distributor trough and drain
pan. The humidifier may be mounted on the warm or
return air plenum with equal efficiency.
See Typical Installations.
ADDITIONAL MATERIALS THAT MAY BE NECESSARY:
1. 1/4" diameter plastic supply tubing or 1/4" copper
supply tubing for hot water applications
2. 6" diameter galvanized by-pass pipe
3. electrical wire and wire nuts
4. air pressure switch (G.F. Model #12500 suggested)
2
1042 SERIES
FLOW-THROUGH
BYPASS HUMIDIFIER
R
3
COPPER
TUBING
PLASTIC
TUBING
Cut out center section of template and 6” hole. Hang humidifier cabinet
and insert remaining four screws. Tighten all 8 screws. Install
connecting collar after drilling 1/8” holes for screws. Connect by-pass
pipe to collar and humidifier cabinet. Using holes at top and bottom of
humidifier bypass opening drill 2---1/8" holes through bypass pipe and
screw by-pass pipe to humidifier cabinet.
Mount the self tapping saddle valve on either a cold or a hot water
pipe. A side or top mount is best to avoid clogging from pipe
sediment. Connect 1/4” O.D. tubing to the saddle valve. Copper
tubing requires a brass compression nut and brass sleeve. Plastic
tubing requires a brass insert inside the tubing, a plastic sleeve on
the outside with a brass compression nut.
NOTE: DO NOT USE PLASTIC TUBING ON HOT WATER OR IN
CONTACT WITH ANY HOT PLENUM SURFACE OR DUCT.
INSTALLATION OF THIS SADDLE VALVE MUST MEET OR
EXCEED LOCAL CODES AND ORDINANCES.
4
Select location on vertical surface of warm or return air plenum for
mounting humidifier. For plenum sizes 9 1/2" to 15" use 1040AD adapter
plate and five screws, 3 screws in top (supplied with DM model only).
Stick mounting template in place making sure the template is level. Do
not install humidifier or 6" bypass pipe where the blanked off ends of a
cooling coil will restrict air flow to the humidifier. Extend horizontal
centerline from template to the adjacent plenum. Scribe 6” circle 10” to
15” from side of humidifier, on cabinet centerline, using connecting collar
as guide.
Center punch the four side mounting holes on the template and drill
with an 1/8" drill bit. Insert four sheet metal screws in the side
mounting holes until the heads project about 3/8". Hang humidifier
from the four screws and install drain pan, evaporator pad and
distributor trough. Adjust humidifier until level and tighten four
screws. Remark four remaining holes if necessary. Remove
humidifier and drill four remaining holes.
Top Of Template
TEMPLATE FOR INSTALLING
BYPASS HUMIDIFIER
4. TIGHTEN SCREWS AND ADJUST HUMIDIFIER UNTIL LEVEL.
5. REMARK FOUR REMAINING HOLES IF NECESSARY.
6. REMOVE HUMIDIFIER, DRILL REMAINING HOLES AND CUT OUT CENTER SECTION OF
TEMPLATE.
WHEN INSTALLING ON BASEMENT TYPE FURNACE, EXTEND THIS LINE
FOR LOCATING HOLE ON ADJACENT PLENUM
IF FURNACE JACKET EXTENDS MORE THAN 3" OUTWARD FROM THE PLENUM SURFACE
ALLOW 4" CLEARANCE BELOW THIS LINE FOR EASY ACCESS TO DRAIN HOSE CONNECTION.
CUT ON THIS LINE
TEMPLATE NO. 1042-25
ALLOW 2 1/2 INCHES CLEARANCE
ABOVE THIS SURFACE FOR SERVICING
FOLLOW INSTRUCTIONS PACKED WITH HUMIDIFIER
1. REMOVE PROTECTIVE PAPER FROM BACK OF TEMPLATE AND STICK IN LEVEL POSITION.
2. CENTER PUNCH AND DRILL THE FOUR SIDE MOUNTING HOLES WITH A 1/8 " DIA. DRILL.
3. HANG HUMIDIFIER FROM FOUR SIDE SCREWS AND INSTALL DRAIN PAN, EVAPORATOR
PAD AND DISTRIBUTOR TROUGH.
HIGH BOY COUNTER-FLOW LOW BOY
RETURN AIR
RETURN AIR
RETURN AIR
WARM AIR
WARM AIR
WARM AIR
WARM AIR
GENERALAire
AC SERIES
HIGH EFFICIENCY AIR CLEANER
R
DRAIN
DRAIN
DRAIN

Summary

Installer Instructions and Precautions

Installation Guarantee Card

Fill out and mail the guarantee card after installation completion.

Installer Qualifications

Installer must be experienced; disconnect electrical power before starting.

Installation Environment

Avoid areas below 32°F or above 200°F plenum temperatures.

Mounting Location Options

Mount on warm or return air plenum; invert cabinet for side orientation.

Required Additional Materials

List of materials like tubing, pipe, wire, and air pressure switch.

Humidifier Mounting Steps

Select Mounting Location

Choose a vertical surface on the air plenum and use the template.

Prepare Mounting Holes

Center punch and drill side holes, insert screws for initial hanging.

Install Internal Components

Install drain pan, evaporator pad, and distributor trough.

Secure Cabinet

Hang humidifier and tighten all mounting screws.

Connect Bypass Pipe

Install connecting collar and secure bypass pipe to the cabinet.

Water Supply and Solenoid Valve

Saddle Valve Installation

Mount saddle valve on water pipe and connect 1/4" tubing.

Tubing Material Guidelines

Use appropriate fittings for copper or plastic tubing, avoid hot surfaces.

Detailed Saddle Valve Instructions

Copper Pipe Installation

Step-by-step instructions for installing saddle valve on copper pipe.

Steel, Brass, or Hard Plastic Pipe

Instructions for installing saddle valve on steel, brass, or hard plastic pipe.

Threaded Pipe Fittings

Steps for installing valve into threaded pipe fittings.

Solenoid Valve and Wiring

Solenoid Valve Assembly

Attach solenoid valve, connect water supply tube, and distributor tube.

Wiring Humidistat

Refer to Humidistat instructions for electrical connections.

Drain Hose and Operation Check

Connect Drain Hose

Attach 5/8" hose to humidifier, run to drain with proper slope.

Check System Operation

Verify water flow, solenoid valve function with furnace operation.

Orifice Settings

Discusses orifice options for different water pressures (3.5 GPH at 60 psi).

Parts List

Humidifier Component Identification

Lists all parts of the humidifier with their corresponding numbers.

Limited Warranty Information

Warranty Coverage

One-year warranty for defects, excluding evaporator pads.

Obtaining Repair Service

Instructions for sending defective parts to the manufacturer.

Care and Maintenance Procedures

End-of-Season Cleaning

Steps for cleaning humidifier after the heating season.

Mineral Deposit Removal

Clean components with a vinegar-water solution.

Evaporator Pad Replacement

Replace pad if it has excessive mineral deposits.

Solenoid Valve Strainer Cleaning

Clean the solenoid valve strainer screen from mineral buildup.

Summer Shutdown Procedure

Turn off water and power, close air damper for summer.

Humidifier Operation Principles

Evaporation Process

Uses furnace heat to evaporate water from the pad.

Water Flow Control

Solenoid valve controlled by humidistat; water filtered and metered.

Mineral Handling

Minerals remain on the pad and are washed away with waste water.

Recommended Settings

Avoid high humidity to prevent condensation; refer to humidistat manual.

Warranty Registration

Online Registration

Register online at www.generalaire.com.

Mail Registration

Fill out and mail the warranty card to the manufacturer.

Liste des Pièces

Identification des Composants

Liste des pièces de l'humidificateur avec numéros de référence.

Garantie Limitée

Conditions de Garantie

Garantie d'un an contre les défauts de matériaux et de fabrication.

Limitations et Exclusions

Exclut les blocs évaporateurs; limite les garanties implicites.

Soins et Entretien

Procédure de Nettoyage Saisonnier

Nettoyer l'humidificateur à la fin de chaque saison froide.

Nettoyage des Dépôts Minéraux

Utiliser une solution de vinaigre et d'eau pour nettoyer les dépôts.

Remplacement du Tampon Évaporateur

Remplacer le tampon s'il présente des dépôts minéraux excessifs.

Nettoyage du Filtre de lÉlectrovanne

Nettoyer le filtre à tamis du raccord de l'orifice.

Mise Hors Service Estivale

Couper l'alimentation en eau et électricité, fermer l'amortisseur d'air.

Fonctionnement de lHumidificateur

Principe dÉvaporation

Utilise la chaleur de la fournaise pour évaporer l'eau.

Contrôle de lAlimentation en Eau

Électrovanne contrôlée par l'humidistat; eau filtrée et mesurée.

Gestion des Minéraux

Les minéraux restent sur le tampon et sont évacués avec les eaux usées.

Réglages Recommandés

Éviter une humidité trop élevée pour prévenir la condensation.

GeneralAire 1042 Series Specifications

General

Capacity	18 Gallons per Day
Voltage	24V
Type	Flow-through
Coverage Area	Up to 3, 000 square feet
Mounting Location	HVAC Duct
Water Supply Connection	1/4 inch copper tubing
Drain Connection	1/2 inch drain hose