Operating instructions

OPTIONAL SETTING # 2 (FIG27.)
Humidifier ON : A temperature rise of 4°C
in one minute and a temperature greater
than 30°C
Humidifier OFF: A temperature drop of
2°C in one minute and a temperature less
than 55°C
• This setting will be useful when you find
the humidifier is not turning off when your
furnace has cycled off. Typically this will
occur because the furnace’s cool down cycle is short and the
furnace is shutting off when there is still hot air circulating through
the ducts. As well this will be seen when the furnace is located in
an enclosed space and as a result the ambient temperature is high.
OPTIONAL SETTING # 3 (FIG. 28.)
Humidifier ON : A temperature rise of 4°C
in one minute and a temperature greater
than 30°C
Humidifier OFF: A temperature drop of
2°C in one minute and a temperature less
than 65°C
• This setting will be used when option # 2
(55°C off temp) does not work. You will find
this when a furnace does not have a cool
down cycle at all, on older model furnaces. This could be
occurring when the furnace is older and has short off cycles or if
the furnace is located in a tight enclosed space and the ambient
temperature is very high.
• OPERATING TIP: Depending on the type of furnace and
installation, you may notice that after the humidifier has
shut off and the furnace shuts off the humidifier will turn
back on. This is occurring because the control is sensing
residual heat from the heat exchanger after the furnace has
shut off. If you are experiencing this you should change the
control setting until the problem is resolved. The
temperature at which your furnace shuts off is too close to
the control’s OFF temperature. It may be beneficial to have
the control set to the higher OFF temperature (55°C or
65°C). However it is important to note ONLY CHANGE
THE CONTROL SETTING IF NECESSARY.
REDUNDANT SAFETY CIRCUIT SETTING –
PRESSURE SWITCH CONTROL (NOT SUPPLIED) (FIG. 29)
Humidifier ON: When pressure switch
senses air-flow in the furnace duct
Humidifier OFF: When pressure switch
senses no air-flow in the duct.
• This setting can be used if for some reason
the above 4 different control setting fail to
shut off the humidifier. This is more than
likely occurring as a result of a non-standard
heating system, some sort of supplement
heating, improper humidifier installation, improper furnace
operation, or for some other unforeseen circumstance. This
option may also be used if for some reason the humidifier will not
turn on, this could be occurring because the furnace is not
providing enough heat or it is not providing the required
temperature rise fast enough. All four of the above control setting
have the same ON temperature requirements. This is ensuring an
efficient use of water as there is a minimum air temperature to
efficiently evaporate water. As well if for some reason you wish to
bypass the temperature feature and have the humidifier operate
when fan operates you may choose this option. This option
requires the purchase and installation of a separate pressure
switch (fig 30). Installation instructions for the pressure switch are
included with the kit.
CONTROLLING THE HUMIDITY LEVEL
AND HUMIDIFIER OPERATION
HUMIDIFIER START UP
When you first plug in the 24 Volt transformer and turn on your
humidifier you may hear a click. This is the power getting to the
control’s relay. As well if you adjust the humidistat UP or DOWN
and past the sensed humidity level you may hear the control’s
relay clicking. This is normal as the humidistat is just an ON/OFF
switch, every time the humidistat is turned DOWN the power is
cut to the HUMIDISENSE control.
When starting up the humidifier for operation:
1. Make sure the transformer is plugged in and the water supply
is turned on.
2. Turn the humidistat up high, so it is calling for humidity.
3. Turn your furnace thermostat UP so the furnace cycles ON.
4. Once the HUMIDISENSE control senses heat the humidifier will
turn ON. You will know because the green “HUMIDISENSE”
LED (fig. 24) on the front of the humidifier will turn ON.
5. After a few moments you should hear water trickling through
the drain.
6. After your furnace has completed the heating cycle and shut
off (by the thermostat) the humidifier will cycle OFF. You will
know because the green “HUMIDISENSE” LED (fig. 24) on the
front of the humidifier will turn OFF
CONTROLLING THE HUMIDITY LEVEL
A humidistat is supplied with this humidifier to control the
amount of moisture added to the air in your home. It will sense
11
Model 5000 Flow Through Humidifier
Figure 27
Figure 28
Figure 29
Figure 30
Pressure Switch