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1.
Place unit on
flat surface, pull
front cover up on
right side. It
snaps loose.
Disconnect
feed
tube nozzle and
lift evaporative
media and scale control insert out at the top.
2.
The unit is
assembled for
left side dis-
charge. If right
discharge
is nec-
essary, remove
the right and left
screws
from
the unit interior
side walls and exchange the two sides. Reassemble
with screws.
3.
Draw a level
line on furnace
supply plenum at
least 1V2" above
furnace cabinet
to allow for water
supply line and
drain hose.
Accurately cut a
plenum opening (Small Bypass Unit, 93/e'W x
91/s'H and Large Bypass Unit, 93/4"W x 121/2"H),
being careful to avoid injury from sharp edges.
4.
Place the unit
into the plenum
opening so that
the looking tabs
on the bottom
are closed down
onto the lower
sheet metal
edge. While hold-
ing the unit in place, install two screws at the top
of the unit interior.
5. Install a 6"
collar in a con-
venient location
on the opposite
plenum. Slip on a
90 ° elbow and
measure the
length of 6"
round duct
required to make the connection. The 6" duct wifi
fit into the round collar on the side of the unit. If
the furnace has central air conditioning, add a
duct damper. Assemble components with sheet
metal screws. Support bypass ducts in excess of
4' to prevent sagging.
6. Reattach feed
tube nozzle and
replace the evap-
orativo assembly
complete with
the evaporative
media by fitting
the drain tube
into the round
receptacle at the bottom of the unit. Push the
assembly in at the top against the beveled tabs.
Replace the front cover.
7. HUMIDISTAT INSTALLATION
INSTRUCTIONS
The humidistat is
designed for low
voltage service to
control humidifi-
cation equipment.
An increase in
relative humidity
expands the
nylon ribbon that
opens the control switch to stop operation on the
humidifier. A decrease in relative humidity revers-
es the process and closes the control switch.
Install the humidistat.
DISCONNECT
ELECTRICAL
POWER TO
FURNACE BEFORE PROCEEDING
LOCATION
a) Locate on inside wall of living area approxi-
mately 5' above floor, or in the furnace return
air plenum. Use enclosed adapter plate for
return air installation.
b) Do not locate control in the direct path of
furnace discharge air or drafts from open
doors and windows.
c) Do not install where operation might be
affected by lamps, sunlight, fireplace registers,
radiators, concealed air ducts and pipes, or
room occupants,
d) The basic rules for Iooabon of thermostats
also apply to humidistats.
GENERAL
INSTRUCTIONS
a) DO NOT ATTEMPT TO REPAIR OR RECALl-
BRATE CONTROL.
Controls requiring service
should be returned to your distributor.
b) Control must be installed using 24 volts!
c) Make sure no bare wires are exposed or
insulation damaged. Insulation on wire should
extend to head of binding screws.
d) Make sure all splices are mechanically and
electrically secure.
e) To remove dirt or other foreign matter from
nylon ribbon and control interior, dust lightly
with a fine, soft brush.
8. Tap into a
water supply line
with the saddle
valve furnished.
The humidifier
will function with
cold, hot, softened
or unscftened
water. The use of
service hot water (140"F MAX.) and constant blow-
er operation will provide maximum evaporative
capacities. NOTE: The saddle valve is designed to
be fully opened or closed. Do not use it to regulate
water flow.
TO INSTALL ON COPPER OR PLASTIC PIPE
a) Place rubber gasket in center of hole in top
saddle clamp. Place top and bottom saddle
clamp around water pipe. Using bolts, tighten
saddle clamps evenly - clamps should be par-
allel - DO NOT over-tightan.
b) Screw valve body into opening in top saddle
clamp and tighten.
c) Tighten gland nut onto valve body.
d) Install V4" water supply line from humidifir
using compression
fittings.
e) You are now ready to pierce the pipe. Turn
handle until spindle is firmly seated into va_
body. The water pipe is now fully pierced.
Turning spindle in shuts valve off. Open valve
completely
for normal operation.
TO INSTALL ON STEEL OR BRASS PIPE
a) Shut off water supply. Open any faucet to
relieve water pressure.
b) Drill 3/_s" diameter hole into pipe where saddle
valve will be placed.
c) Place rubber gasket in center of hole in top
saddle clamp.
d) Place top saddle clamp assembly over hole so
that lance fits into hole.
e) Place top and bottom saddle clamp around
water pipe.
f) Screw valve body into opening in top saddle
clamp and tighten.
g) Tighten gland nut onto valve body.
h) Install 1/,_.water supply line from humidifier
using compression fittings.
NOTE: For pipe over 1° O. D., use V4"-20,
13/4" long bolts.
9.
Connect tubing
from the saddle
velve to the
inlet side of the
scler_d
valw
using V4"O
copper tubin_
(not furnished,
DOUBLE WRENCH
TO PREVENT
LEAKING
AND VALVE BREAKAGE!
10. Connect 1/2=
I.D. plastic hose
(not furnished)
from unit to floor
drain. Be sure
drain hose has
continuous
slope. Use cau-
tion if hose
clamp is used to not over tighten and crack drain
spud. NOTE: Do not sweat or directly attach
metal drain line to fitting. Do not use solvent
type adhesive when connecting
plastic drain
hose, since damage to fitting could result.
11.
Open saddle
valve and turn on
furnace. Turn up
humidistat to
operate unit.
Allow unit to run
until water is
observed coming
out of drain line.
Check to see if unit is watertight and all electrical
components
function properly. Reset humidistat
to recommended level.
OP #1(X]0559_ 5.01.0_
o 2002
CAC/BDP
Form: IM-HUM-02
RO. BOx 70 IP_napoSs,
IN 45204
Catalog:63HU-M01
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