READ COMPLETE SAFETY INSTRUCTIONS AND INSTALLATION TEMPLATE BEFORE STARTING
TEMPLATE MUST BE LEVEL
– TOP –
READ REVERSE SIDE FIRST!
READ REVERSE SIDE FIRST!
IMPORTANT!
Be sure User’s Information Guide
containing instructions for operation and warranty information is
given to owner in order to avoid unnecessary calls. Warranty is
void unless humidifier is installed by qualified heating and air
conditioning contractor due to possible misapplication of product.
1.
Remove front cover by pressing center
tabs on top and bottom of the cover (1) and
base (2). Pull feed tube (3) out of the water
distribution tray (4). Tip the evaporative
assembly forward and lift it out
of the humidifier.
(See Figure 1)
2.
The humidifier comes assembled for left
side discharge. If converting to right side
discharge, the base can be rotated so round
collar is facing to the right.
S
wap the location
of the hole plug (10) and drain spud (9) if using
a right side discharge. To remove the cap,
push and twist from inside the housing while
lifting the cap up slightly on the outside. To
remove the drain spud, twist and push from
the outside of the base.
3.
Using a level, position this template at
least 3 inches above the furnace housing or
cooling coil, if applicable, for clearance of
the drain line. Trace around template edges.
Remove the template and accurately cut the
plenum opening 9
1
⁄
2
” x 9
1
⁄
2
”,
being careful
to avoid injury from sharp edges.
4.
Place the humidifier into the plenum
opening, install six sheet metal mounting
screws (not furnished) at the top and sides
of the humidifier interior.
5.
Install a 6” collar in a convenient location
on the opposite plenum. Attach a 90° elbow
and measure the length of 6” round duct
required to make the connection. The design
of the humidifier collar provides a solid
connection with the bypass duct through the
use of inside support ribs and pre-formed
holes for sheet metal screws.
S
lip the duct
inside the collar of the humidifier, up to the
support ribs. Using the pre-formed holes at
the top and bottom of the humidifier collar,
secure the duct to the humidifier collar with
two sheet metal mounting screws (not
furnished).
S
upport bypass ducts longer than
4 feet to prevent sagging.
6.
Reinstall the evaporative assembly back
into the base, with the bottom of the scale
control insert (6) sitting firmly in the inside of
the drain spud (9). Push the feed tube back
into the water distribution tray.
(See Figure
2)
Put the front cover back on. If the
nameplate (11) is upside down, remove it
and rotate the nameplate so it is right side
up, and snap back into place. Turn damper
handle (8) to the open position “WINTER” for
the heating season, or closed position
“
S
U
MM
ER” for the cooling season.
7.
Locate and install the
M
anual Humidifier
C
ontrol by following the instructions shown in
step #7A.
DISCONNECT ELECTRICAL POWER
TO FURNACE BEFORE PROCEEDING TO
STEP #7A!
LOCATION
1. Locate on inside wall of living area
approximately 5 feet above floor, or
in the furnace return air plenum or
duct. Adapter Plate Part No.
BAYPLT01A
M
H
C
OA is required for
return installation. If humidifier is
mounted on return, Humidifier
C
ontrol must be at least 6” upstream
of humidifier.
2. Do not locate
C
ontrol in the direct
path of furnace discharge air or
drafts from open doors and windows.
3. Do not install where operation might
be affected by lamps, sunlight,
fireplace registers, radiators,
concealed air ducts and pipes, or
room occupants.
4. The basic rules for location of
thermostats also apply to humidifier
controls.
8.
C
onnect the transformer 120 VA
C
primary
wires to the integrated Furnace
C
ontrol
Accessory Terminals. The terminals are
marked HU
M
-H, HU
M
-N, where available. The
HU
M
terminals will provide 120 VA
C
to the
transformer whenever there is a call for heat.
The transformer is designed to be mounted on
a junction box.
S
ee furnace Installer’s Guide
for wiring recommendations.
NOTE: For gas
furnaces without humidifier accessory
terminals providing 120 VAC, use the Current
Sensing Relay (BAYRLY10ASENSA).
9.
Tap into the top or side (not bottom) of the
water supply line with the saddle valve
furnished.
S
ee instructions on saddle valve
package. The humidifier will function with
cold, hot, softened or unsoftened water. The
use of service hot water (140°F
M
AX.) and
constant blower operation will provide
maximum evaporative capacity.
NOTE: The saddle valve is designed to be
fully opened or closed. Do not use it to
regulate water flow.
10.
C
onnect 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!
(See Figure 3)
11.
Drain spud is designed to accept
1
⁄
2
”
I.D. plastic hose (not furnished). Run drain
line from drain spud to floor drain.
CAUTION: If hose clamp is used, do not
over tighten, drain spud could crack. Be
sure drain line has continuous slope.
NOTE: Do not sweat or directly attach
metal drain line to fitting. Do not use
solvent type adhesive when connecting
plastic drain line, since damage to fitting
could result.
12.
Open saddle valve completely and turn
on furnace. Turn up Humidifier
C
ontrol so
that humidifier will turn on. Allow humidifier
to run until water is observed coming out of
the drain line.
C
heck to see if humidifier and
saddle valve are watertight.
C
heck
operation to make sure that all electrical
components function properly.
S
et
Humidifier
C
ontrol to level recommended in
User’s Information Guide.
NOTE:
BEFORE LEAVING THE
JOB SITE, MAKE SURE:
1. Saddle valve is fully open.
2. All plumbing connections are
watertight.
3. Humidifier functions properly.
4. Bypass damper is in proper
position.
Figure 1
Figure 2
Figure 3
18-
C
H30D1-2
10006956 B2204061B 7.08
7A.
MANUAL HUMIDIFIER CONTROL INSTALLATION INSTRUCTIONS:
The
M
anual Humidifier
C
ontrol is designed for low voltage service to control
humidification equipment. An increase in relative humidity expands the nylon ribbon
which opens the control switch to stop operation of the humidifier. A decrease
in relative humidity reverses the process and closes the control switch.
GENERAL INSTRUCTIONS
1.
Do not attempt to repair or
recalibrate Humidifier Control.
Humidifier Controls requiring
service should be returned to
your distributor.
2. Use humidifier control in low voltage
(24 VA
C
) applications only. Install
24 VA
C
wiring to humidifier control
as shown in Wiring Diagram,
opposite side.
3.
M
ake sure no bare wires are
exposed or insulation damaged.
Insulation on wire should extend
to head of screws.
4.
M
ake sure all splices are
mechanically and electrically secure.
5. To remove dirt or other foreign matter
from nylon ribbon and control interior,
dust lightly with a fine, soft brush.
90-1067
90-1068
90-1069
1. Front
C
over
2. Base
3. Feed Tube
4. Water Distribution Tray
5. Humidifier Pad
6.
S
cale
C
ontrol Insert
7. Integral Damper
8. Damper Handle
9. Drain
S
pud
10. Hole Plug
11. Nameplate
12.
S
olenoid Valve
8
5
3
4
1
11
6
9
7
2
10
12
90-1108
FURNISHED ITEMS
ITEMS NOT FURNISHED
Built-in bypass damper
24 VA
C
M
anual Humidifier
C
ontrol
24 VA
C
Transformer
S
addle valve
Humidifier Installation Template
M
ounting screws (sheet metal screws)
Water supply line (
1
⁄
4
” copper)
Drain line (
1
⁄
2
” I.D. hose)
Low voltage wire
Bypass ductwork
M
anual Humidifier
C
ontrol Adapter Plate
BAYPLT01A
M
H
C
OA
C
urrent
S
ensing Relay
BAYRLY10A
S
EN
S
A (if required)