Lasko 900l Owner's Manual

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INTRODUCTION

Dear Customer,

Congratulations! You have just purchased one of the best furnace humidifiers available. This humidifier is intended for use only on forced circulation warm air furnaces. Please read the instructions before you install and use your humidifier. This will help you obtain its full value.

Please keep this manual in a safe place for future reference.

CONTENTS

Installation

Before you start 1

A. Check the contents 01 the carton 1 B. Read the rules for safe installation and operation 1 C. Check for required tools 1 D. TYPical installatior: 1 E. Humidifier mou nting location.. 1 F. Converting right hand model into left hand unit 2

G. Pre pari ng the hum idifier for insta Ilation 2 Mounting the humidifier cabinet 3 By-pass air tube installation 3

A. Installing the by-pass collar and air shutter 3

B. Installing the by-pass air tube 3

Water supply insta Ilati on 3

A. Connecting the plastic tubing :0 the humidifier 3

B. Installing the saddle valve to the water pipe 4

C. Connecting the plastic tubing :0 the saddle valve 4

D. Overflow drain connection ...4

Electrical installation 1

A. Install ing the transformer J B. Install ing the humidistat 5 C. Low voltage wi ring diag ram 6

Humidifier start-up 6

A. Installing the drum and evaporator pad 7 ~: ~~j ~~~:~~ ~~: b:-~;~;~r~' fi~~.:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::~

D.Humidistat dial setti ng 7

Final check-up before commencing operation 7

Miscellaneous information

A. Understanding humidity 8 B. Using copper tubing instead of plastic tubing 8 C. Mounting the transformer to Interlock with the furnace blower 8

Routine maintenance

Normal humidifier maintenance ..9

A. Cleaning and replacing the evaporator pad 9 B. Cleaning the float valve assembly 9

C. Sum mer shut down 9

Repair parts illustration 10

WARRANTY

To m.UtHiIIl1 w;!rr;lnc~. U\lOoniy ;:unutJ.tCuft-f'" Drandname n:pl.t(.t:ml:1lCt:\'arorawf pads and rt'pbn-mc:nc pares. If your furnal'c hurnuliti(:r has a .;cainlt:ss sct'el c;;abin!:.c.chf:

Glb.m:r l'i ,cuar.lI1fl'lod h~' rill.: ~1..inura(cun:r lor l(» y<:ars. I:" \"IHlr furnJ.«: humidifIer has.1 Gal\'aluml".\1 (.lblflc=r. [he l.ablnec is guaranceed by che manufac.curer tor 1;1

YCJ.r\. Should dl'tUIl.d (Ir ~(:I.~.lI1ll'.d rt:p;ur bt'loml' nt:c:e\~ar\' dllnn.~ chI: "I/arranc~' penod. ,>end ~"(Jur Lomplc:u: proc.illl"C. poscage or fn:lghc pn:.ra1d co our taccory, Thl::i w;trrancy dOL'" nor .Ir'pl~' If [be -.iJmal::e 1J(:c.:lIrs bt:ClU\C Of .Kc.:ldt:l1C. Improper handling ur opef<.t[lOn. ..hIFPln~ dama~t". J.bust:. misuse, unauchofJzed repairs madt' or

Juemp((.d. or r!ll' U"L'of' rhe pru...lUU for (.omm(:f(:ial sl'rnu'.

All O(hl'r IMn'\ lIt' rhl'> I'ft.)dw,., Jor":;~u;,ranre~:J :,y rill' nUnUf.lL rllrt:r fflr..(JIIl' ''"t'J.r,from rhe: d.t((: of pUrd1Jst' J~:lIn\r ddC.:<:C\ (lry parr') lx' m-L'llnl. or 11.1r'arr ~1ccJ"repl..111:rnl'nr.Loman rhl: manutalcun:r ror In-warranry rt'plac.:emcnr ?acrs, A lory of rroor-o[-pufl'ha~c must be Includt:d alon~ wlrh rhe r~rL' ,lItd ~c\'k. whu,h I' !.)f..Hcd {In rhl' ',.III/':r of your ,lpphann' Scnd ro LASKO ,\tETAL PRODL"CTS. S20 llnc.:oln Avt'"W'csr Cht:srt'r. PA 19"HO. DO .\IOT

RE1TR;\; PRODI (T TO ,TORE WHERE PL'RUIASED

AI.L <\BO\'F \\-'<\IU(,-\;\;TII'.'. EXPRESSED OR IMPLIED. DO ;\;OT COVER LIABILITY FOR I;\;CIDENT.\L OR CO;\;SEQCENTfAL DAMAGES FOR A;-;Y

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l..4uko .\Ie:/.'! p,."clml, IlIc.8211 tim'ol", \n".. U't".I1 Cbesler. P.-\ JI) }HIJ

LASKOFURNACEHUMIDIFIER

LIMITEDWARRANTY

II1.work~a.nship Jnd/or mareri.ds, Sholl 1<..1.lccess., '

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INSTALLATION

BEFORE

Take precaution when handling any fabricated metal, sharp edges can cause serious injury. The following preparation should be done before you start your new furnace humidifier installa-

tion.

A. CHECKTHECONTENTSOFTHECARTON

Please refer to the repair parts illustration on page 10for parts identification. Inthe carton, you should findthe followingitems:

r- 1-6"flexibleby-passtube! item201

1 -air shutten ,tem 191

1 - by-pass tube collar. item181

1 -motor & plastic cap assem bly. 'tem 29&6 1 1 -humidifier cabinet assembly, 'teM U. 10& 261

1 - drum cage with evaporator pad, 'tem2&5I 1 - humidistat assembly. Item81

1- 120V/24Vtransformen 'tem71

1 -low voltage wire 20FT ion9,. item30 1

1 - 1/4" plastic water tubing, 10FT.'ong" item17I

1 - water panl,tem3,

1 - installation instruction t

1 -plenum and humidistat opening template t 1 - by-pass collar opening template t

1-polybag contains the following hardware and

NOTE: 1. "t" - Parts are not shown on parts illustration.

B.READTHERULESFORSAFEINSTALLATIONAND OPERATION

1.Always shut the power OFF before working on electric

devices.

2.Shut OFF the water supply before working on the humidifier.

3.All wiring and accessories (wire size, insulation etc.) must

satisfy national and local electrical codes.

4. Be cautious of sharp edges during installation.

YOUSTART...

NOTE: On model 900L, metal collars are constructed on the

flexible tube for quick locking connections.

On model 400L, two plastic ties are supplied for the flexible tube to connect to the collars! item211

accessories

1 -saddle valve assembly ( item 9)

1-nylon compression nut (item111

1 -overflow drain fitting ( item 25 I

1 -rubber hole plug ( item27 I

-humidifier conditioner t

1 -conditioner's instruction t

1-black rubber ferrule I item 12 I

5-electrical wire fastening staples t

11 -sheet metal screws t

1 - nylon ferrule! item 161

2 -brass insert I item 13 i

2. If parts are damaged or missing, please call our

parts

dept. toll free at 1-800-966-2028, Mon.

thru Fri. between the hours of Bam and 4pm EST.

please do not return product to place of purchase.

Please quote model number of product when you call.

3. For questions on installation please call our toll- free

hot line at 1-800-465-7300.

C. CHECK FOR REQUIREDTOOLS

-tin snips

-utility knife . adhesivetape

-pliers

-electric drill

-drill bits (1/4", 1/8" and .104")

-medium sandpaper

-screwdrivers

-adjustable wrench

- hammer

-ruler or measuring tape

-level

D. TYPICALINSTALLATION

Here are three frequently encountered types of installation.

1. lO-BOY FURNACE(Fig.l) 2. HI-BOY FURNACE(Fig.2)

W.A.

la-BOY FURNACE

HI-BOY II

FURNACE r

R.A.

FIG.1

3. HORIZONTAL FURNACE (Fig.3)

HORIZONTAL FURNACE

FIG.2

FIG.3

R.A.: Return (cold) air plenum W.A.: Warm air plenum

IMPORTANT: Humidistat must be upsteam of the furnace

humidifier and a minimum of 6 inches dis- tance must be maintained for humidity sensing and control.

E.DECIDE THE HUMIDIRER MOUNTING LOCATION

NOTE:

1. The humidifier should be mounted on the return air

plenum with the by-pass tube connected to the warm air

plenum. This is a safeguard only, it can be mounted on either side, but you must make sure that the evaporator pad

_ :Humidistat

II : Humidifier

<::==

,-;.:;..; ~

~'~~

does not sight radiant heat from the combustion cham- ber of the furnace. Radiant heat will cause the evaporator pad to deteriorate. Available space and ease of installation

will determine which location to use. This humidifier can be mounted on a minimum of 8" wide plenum or duct.

2. The center of the by-pass tube collar opening must be approximately 13 inches from the humidi-

fier cabinet side panel (Fig.4). However, if the dis-

Approx. 13 inches

r l

,I I

Center -r-"-

By.pass tube I, . I

collar opening I '

J I~Humidifiercabinet

W A

UJ U <{ Z II: ::J

u..

L-- slce panel

R,A.

FIG.4

side. Using the nylon bearing as a pushing point. slide the bracket towards the front of the cabinet until the bracket

disengagesfrom the reartab. Pull the bracketforward until

the front of it is free of the front tab. (Fig.5)

3. Position the bearing bracket over to the left side with the

open portion of the "U" shaped nylon bearing in the up position and insert the rear end of the bracket into the rear

tab to its limit. Next slide the front end of the bracket into the front tab until the small circular boss snaps into the nest hole. This locks and registers the correct position of the nylon bearing.

4. Relocate the float valve assembly over to the right side of

the cabinet. Be sure to register the double "D" plas-

tic raised portion into the hole then secureit with the

nylon hex nut. (Fig.6)

.' I:~' \ ,,-\

tance has to be more than 13 inches for your instal- lation, an additional length of galvanized pipe (not included)may be used to extend the by-pass tube length.

3. 00 not mount the air by-pass tube and the plastic cap assembly to the cabinet, until you know if it is going to be a left or right side installation.

4. In order to prevent furnace or property damage, the humidifier must be installed according to the manufactur- er's installation instructions. Ifdamage occurs due to improper installation, the manufacturer's warranty is null

and void.

F. CONVER11NGRIGHTHAND MODELINTO~ HAND UNIT

As shipped, the humidifier is a right hand model (By-pass

tube connected to the right side of the humidifier). Ifthe humidifier mounting location dictates that the by-pass air tube must be on the left side of the humidifier, then proceed with the following:

1. Remove the float valve assembly from the cabinet.

2. The bearing support bracket must be relocated to the left

@'-

Nylon bearing

Bearing support bracket

Relocating the float valve assembly from the left side of the cabinet to the right side

FIG.6

5. From the parts bag, take out the double "0" rubber hole plug and insert it into the left side double "0" hole to

prevent air leakage. The humidifiE?ris now ready for a left hand installation (By-pass tube connect to the left side of the humidifier).

G. PREPARINGTHEHUMIDIRERFOR INSTALLAll0N

1.Mount the motor & plastic cap assembly onto the

humidifier cabinet.

Note: Be certain that this sub-assembly is mounted

to the proper side of the cabinet for your specific installation.

2. Mount the overflow drain fitting onto the bottom of the

humidifier cover by inserting the tail of the fitting into the

double "0" shaped hole in the cover bottom. Usinga coin or a screwdriver, turn the fitting one quarter turn (90°) in either direction to bind it onto the cover. (Fig.7)

FIG.S

'~i:~_

Overflow drain~ fitting

FIG.7

LHumidifier cover

bottom

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