Walton SW-2 User manual

Sample specifications for SW-2
Humidifiers shall be of the high speed centrifugal atomizing type.
Construction shall be of heavy gauge copper, brass and non-ferrous
alloy. Heavy duty shaded pole motor with overload protection shall
drive the centrifugal disc and pump assembly to draw water up from the
seamless copper reservoir, against breaker combs, producing a finely
atomized mist. Rotating parts shall be electronically balanced to
eliminate vibration. An automatic float valve shall maintain water level
in the reservoir.
Vapor output of the humidifier shall be constant while in operation and
shall not depend on the temperature ofthe air orwater.
Humidifier(s) shall be Model SW-2 as manufactured by Humidity
Source, LLC. Must be UL listed for US and Canada.
CAPACITY
Moisture Output - 2 Ib'/hr.
SPECIFICATIONS
Electric Motor
50 Watts
MODEL
SW-2
Support bracket optional
115 volts, single phase, 60 Hz.
WEIGHT
Net: 10 lb.
Shipping: 11 lb.
Operating: 15 lb.
WATER CONNECTIONS &PRESSURES
Supply: 1/8" Male Pipe Thread
Overflow: %" Female Pipe Thread
Operating Pressure Range: 10-150 psig
Disk
Vapor Making
Comb
Pump Tube
Impeller
Cap
CARTON SIZE
15 %" X 12 %" X 15 %"
CENTRIFUGAL ATOMIZER
Heart ofthe unit
The heart
of Humidity Source humidifier units is the patented
masterfully engineered Centrifugal Atomizer. Water
is drawn by
centrifugal force up through the rotating impeller cap and pump tube,
then spun across the disk rotating at 3250
RPM striking the Vapor-
Maker Comb creating an extremely fine vapor. An integral fan under
the rotating disk blows the vapor out of the unit resulting
in a fine
atomized vapor that
is quickly absorbed into the air.

A
HUMIDITY SOURCE ATOMIZING humidifiers produce moisture that will quickly
be absorbed in the air. However, it is very important that the humidifier be installed so
that there
is no chance of the moisture striking any object before it has been absorbed
by the air. If any solid is hit with air containing suspended or unabsorbed moisture,
condensation and dripping will result. It
is therefore most important that all directions and
minimum dimensions
be strictly adhered to.
Water Supply
1/4" 0.0. Tube
Overflow
Connection
1/4" FPT
6' 0"
" /
Top View
c
r i//:"
~I
-r
6' 0"
No Obstruction Within
This Region To
Prevent
Wetting Objects
(-<.~" /'
/!,
6' 0"
Elevation
NOTE: Drawings Not To Scale
ACCESSORIES
D
A. Duct mounted, high limit humidistat.
Model No. HC-20l
B. Wall mounted humidistat. Model No.
P825.
18"
C. Johnston Controls electronic humidistat.
Model No. W35l and remote sensor (E)
E
D. Air duct pressure switch. Model No.
PC-30l
~I

MODEL SW-2
Your humidifier has been designed and engineered to
give, with proper care, many years of trouble free
service. Therefore, if this unit ceases to operate
properly, we suggest you contact your local dealer. If
we, at Humidity Source, can be of any assistance to
you, please feel free to write, call or e-mail.
IMPORTANT
This space type humidifier is designed so that it may
be shelf mounted. The shelf should be at least 18"
(45.7cm) below the ceiling and 6 feet (1.8m) above
floor. The directional vapor dome should be positioned
to diffuse moisture without striking any obstructions
closer than six feet and maintain 24" minimum between
each side ofthe humidifier and any wall or obstruction.
PROCEDURE
Run a water supply line using 1/4" o.d. copper or
plastic tubing or 1/8" pipe. Keep the line to the rear of
the unit to avoid creating
an obstruction.
Flush water feed lines before making final connection
to avoid having cutting oil, pipe scale, or chips which
may clog the float valve.
Turn
on water valve and adjust water level to 1/2"
below the overflow connection by adjusting the thumb
screw as shown
in Figure 1.
Adjustment is easily made using the adjusting thumb
screw for higher or lowerwater level as illustrated.
SERVICE & REPAIR
Should this humidifier need service or repair some time
in the future, return only atomizing unit direct to the
factory.
CARE OF THE MACHINE
Due to air washing while the humidifier is in operation,
a deposit of dirt and dust may settle
in the bottom of
the water reservoir and screen, and it is recommended
that both be cleaned regularly.
,
I.
Top View
INSTALLATION & MAINTENANCE INSTRUCTIONS
IN ROOM MOUNTED HUMIDIFIER
Periodically the atomizing unit should be taken from
the reservoir and given a careful visual check. The
pump tube should be spun by hand to make sure that it
is free to revolve without binding. See maintenance
instructions.
_____ 1 L __
0 _______ ~_
if'=~H:::[
Shut -off [Y"'" C
valve /1i
"
"
"
y." water i,
'I
supply ~i
rt,r-<:
'·-'1 C)J
y." compo t i j
connection \,_, __
water supply
y." female pipe
overflow connection
to drain
WIRING
Typical Installation
- a
No obstruction within
the dimensions indicated to
prevent wetting objects.
6' Minimum
To Floor
6' Minimum
To Wall
Ceiling
18"
The atomizer motor draws .67 Amps at 115 Volts A.C.
single phase and 60 Hz service.
Provide standard electric receptacle to receive electric
cord from humidifier. Have the hot leg of service to this
receptacle wired
in series with the humidistat terminals
and use a standard disconnect switch if required. See
wiring diagram.
This humidifier may be run continuously
or operated by
means of a humidistat.
Our standard human hair element humidistat model P-
825 is correct for most applications maintaining up to
60%
RH.
For humidors and other high humidity applications, or
for more precise control, use the electronic humidistat
model W351A. This model also has
an optional digital
display module to indicate the set point and the actual
R.H.
in the room.

Float Valve Operation
Pressure Range
10-150 psig
Figure 1
Atomizing Unit
Mounting
Washer
Mounting
Nut
Adjusting
Thumb Screw
~
~ PumpTube
Remove impeller
cap
2-B
2-A
FIGURE 2
These openings
mllst be clear
2-C
OPERATION
Positive capacity atomizing humidifiers produce a mist that
will quickly evaporate into the air if there is no impingement
of water particles against barrier surfaces before the water
particles against barrier surfaces before the water
is
completely absorbed. Strict attention to minimum clearance
dimensions must be adhered to in order to avoid
condensation.
MAINTENANCE
Unplug electric cord & remove dome. Carefully lift atomizing
unit out of reservoir (Figure 2). Hold atomizing unit firmly
and remove the perforated screen (2-A) by turning it slightly
to the left until the four lugs are in line with the slots. To
remove the impeller cap (2-8), hold a flat file or the back of a
table knife flat against the side of the tube and gently tap the
cap which
is held in place by a pressed fit. After the cap has
been removed, the inside of the tube
is visible and it is
simple matter to clean it with a piece of cloth on the end of a
screwdriver or a small round brush.
There are three ports through which water makes its way
from the pump tube to the top of the rotating disc (2-C).
These ports should
be cleaned out with the aid of a wire.
See drawing
on this page.
Replace the impeller cap by tapping it evenly back into
place, using plastic handle on screwdriver.
Remove water from reservoir & rinse. Fill reservoir with
white vinegar or other mild acid solution. Replace dome &
atomizer on reservoir & block outlet of dome with plastic
wrap & a rubber band. Run atomizer for % hour or until
minerals are completely dissolved. If necessary, rinse with
diluted chlorine bleach solution. Rinse with clean water and
return to service. For hard water problems, see
"demineralized water" below.
Inspect float valve assemble periodically, & replace when
necessary, or every few years. Should this humidifier need
service or repair some time
in the future, return only
atomizing unit direct to the factory.
DEMINERALIZED WATER
If your local water supply has a high mineral content, (call
water company & ask for "total dissolved solids" or T.D.S.)
This mineral will create tiny particles
of airborne "white dust"
when the mist evaporates
in the air. To eliminate this dust,
use
an ion exchange or a reverse osmosis demineralizer.
See Humidity Source data sheets for Reverse Osmosis
demineralizing filters.

W351 Humidistat
Electronic Sensor
COM
PWR
OUT
COM
VDC
SEN
Wiring Diagram If Using P-825 Humidistat Installation
Receptacle
120 VAC
Humidity Source P-825
Wall Humidistat
OH
L
C
L2 L1
Neutral Hot
W351A Wiring Diagram If Using W351 On/Off Controller
Controller
W351A
BB
o
Power Module
Y350R Digital Display
0351
D
__ ------} 120VAC
To Humidifier

MODEL SW-2 REPLACEMENT PARTS
Description
c---I//I'------I//~
Dome Strap Assembly
Part Number
079590
Dome 905026
Channel Rubber 905582
~
'
t ---- l
, ,
~+-"""'I--- __ --- Atomizing Assembly
j U ~ ...... ----- Rubber Mounts (3)
I ~ ,
WF/525/9/2
80096
Impeller Cap 905587
Float Valve Assembly 079057
Reservoir 905608
Humidifier Accessories
P-825 Humidistat
Human Hair Element W351 Humidistat
Electronic Sensor
Humidity Source Reverse Osmosis water
Treatment systems. Sizes range from industrial
capacities down to individual room units.
Standard For high humidity
Andlor close
tolerances