J
ELECTRICAL CONNECTIONS
Note:
Please read this section completely
before
attempting the 1
20
V wiring
.
IMPORTANT INFORMATION:
Many newer furnaces have I
Control Boards with ports for the connection of a Humidifier,
simplifying installation.
Check wiring diagram for your
furnace to see if it has a control board if the and if the
Humidifier ports are 120v or 24v.
Control Board w/ 1120v Ports:
Follow Steps in
“LINE"
Wiring, except make the wire Connections to the Humidifier
ports on the Control Board instead of the Blower Motor.
Control Board w/ 24v Ports:
Go to directions for
“LOAD”
wiring, only. The Humidifier Transformer is not needed.
Skip
"LINE" Wiring section below.
No Control Board:
Follow instructions below as written.
1) Locate the Humidifier Transformer. You will note that one
side reads
"LINE"
, which is for the 120V wiring, and the
other side reads
"LOAD"
, which is for the 24V Wiring.
2) Select the best location to mount the transformer on the
furnace so I) the black wire (hot) on the Line side can be
connected to the proper furnace blower motor wire, and 2)
the white wire (common) can be connected to any furnace
common wire. Mount the transformer.
3) From the wiring diagram for your furnace,
locate the wire
that is HOT, during the HEAT mode of operation
. (In
most cases, there will be 3 color-coded wires that control the
speeds of high, medium or low).
4) Make the wiring connections as described in Step I. Wire nut
and wrap each connection with electrical tape to complete the
I2OV wiring.
B)
"LOAD" WIRING (24V)
Refer to previous diagram
Humidistat, Solenoid, and Transformer Connections
1)
Humidistat:
To complete the 24V wiring, the duct Humidistat
must first be mounted. The Humidistat must be located on the
return (cold) air plenum AND upstream of the Humidifier or
by-pass on a flat vertical surface of the return air plenum or
duct. It should not be closer than 6" to the Humidifier or by-
pass.
Do not install the Humidistat on the Supply {HOT)
air plenum.
Follow installation instructions found in
Humidistat package.
2) Connect a piece of the Low Voltage wire provided, from the
LOAD side of transformer
(or 24V Humidifier port on
Control Board if applicable)
to either Solenoid Valve wire.
Connect another piece of wire from the other Solenoid Valve
wire to the Humidistat. (Refer back to wiring diagram)
3) Lastly, connect a piece of the Low Voltage wire from the
LOAD side of the transformer
(or 24V common port on the
Control Board if applicable)
directly to the Humidistat.
OPERATING THE HUMIDIFIER
1) When furnace blower is "OFF", solenoid should be closed.
2) With the furnace blower turned "ON", the solenoid valve
should be open, if Humidistat setting is
ON
(i.e. 20,30 etc). 3)
Flow of water should fall directly into Distribution Tray.
4) The orifice in the solenoid valve will limit the flow of water to
the Distribution Tray to approximately 3 1/2 gallons per hour,
at a line pressure of 60 PSI.
5) Let Humidifier run long enough to be sure that the unit drains
properly into floor drain without overflow. Overflow
conditions are usually caused by water not flowing freely out
of the drain tube. Verify downward slope and no trap or kink
in the drain tubing. Make sure again that all connections are
secure and there are no leaks.
7) Damper is suggested to be on "HIGH" when Humidifier is
used during the winter months, with the Humidistat set at the
recommended settings. Should water blow off of evaporator
pad, gradually close damper until the condition is corrected.
Set Damper to "LOW" position during the summer months and
Humidistat set to 'OFF".
WARNING: Do NOT set Humidity
Control too high. Use recommended settings shown on
Humidistat nameplate.
MAINTENANCE INSTRUCTIONS
1) Shut off power and water supplying this equipment.
2) Remove bottom Drain Pan and slide Evaporator Pad down and
out.
3) Wipe any loose sediment from the water tray (make certain no
particles are allowed to plug the drain hole).
4) Slide new Evaporator Pad up and in through the bottom and re-
connect the Drain Pan to the Humidifier housing
5) Evaporator pad should be replaced at least once a year.
CAUTION
:
Before wiring, turn off all power that supplies the
components. All wiring should comply with local, state and national
codes
.
A)
"LINE" WIRING (120v)
Furnace Connections
Using the Humidifier Transformer provided, follow the basic
12Ov wiring directions and the diagram below. The Humidifier
Transformer will be wired to the Furnace Blower Motor.
