Carrier Humcclbp18a, Humcclfp1218, Humcclfp1318, P110lfp1418 Installation Instruction

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 dis­charge. If right
discharge is nec­essary, 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 11/2" above

furnace cabinet

to allow for water

supply line and

drain hose.

Accurately cut a
plenum opening (Small Bypass Unit, 9

3

/8"W x
91/2"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 locking tabs
on the bottom
are closed down
onto the lower
sheet metal

edge.While hold­ing 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 will
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.Suppor t bypass ducts in excess of
4' to prevent sagging.

6. Reattach feed

tube nozzle and

replace the evap-

orative 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 humidifi­cation 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 revers­es 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 r ules for location of thermostats

also apply to humidistats.

GENERAL INSTRUCTIONS

a) DO NOT ATTEMPT TO REPAIR OR RECALI-

BRATE CONTROL. Controls requiring ser vice

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 unsoftened

water.The use of
service hot water (140˚F MAX.) and constant blow­er 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 r ubber 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 par­allel – DO NOT over-tighten.

b) Screw valve body into opening in top saddle

clamp and tighten.
c) Tighten gland nut onto valve body.
d) Install

1

/4" water supply line from humidifier

using compression fittings.
e) You are now ready to pierce the pipe.Turn

handle until spindle is firmly seated into valve

body.The water pipe is now fully pierced.

Tur ning 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

/16" 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 1/4" water supply line from humidifier

using compression fittings.
NOTE: For pipe over 1" O.D., use 1/4"-20,

13/4" long bolts.

9. Connect tubing

from the saddle
valve to the
inlet side of the
solenoid valve
using

1

/4

" O.D.
copper tubing
(not furnished).

DOUBLE WRENCH TO PREVENT LEAKING
AND VALVE BREAKA GE!

10. Connect

1

/2"
I.D.plastic hose
(not furnished)
from unit to floor
drain. Be sure
drain hose has
continuous
slope. Use cau­tion 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.

DP #10005592 5.01.02 © 2002 CAC/BDP Form: IM-HUM-02

P.O. Box 70 Indianapolis, IN 46206 Catalog: 63HU-M01