Skuttle Indoor Air Quality Products 90 - Manual (Page 5)

3
How to Check the Humidifier for Proper
Operation
For preseason startup, or to check your humidifier for proper operation
(for example, after it has been serviced), follow this four-step procedure:
1. Turn on the water at the humidifier’s saddle valve.
2. Make sure the water level is set at 1-3/8". Turn the valve adjustment
screw clockwise ( ) to lower the water level; turn it counterclockwise
( ) to raise the water level.
3. Turn the humidistat to its highest setting and observe the humidifier
evaporator pad. If it does not rotate, turn your furnace on by setting
the thermostat higher until the furnace blower comes on. This should
cause the humidifier evaporator pad to rotate.
NOTE: Wiring the unit to operate independently of, or in conjunction
with, the furnace blower is up to the discretion of the installer. On
installations where the unit is closely sized (i.e., the cubic footage of
your home is at or near the humidifier’s peak volume capacity), inde-
pendent operation allows the unit to operate throughout the full blow-
er cycle, thereby eliminating the lag time involved in starting the
humidifier.
4. IMPORTANT: Reset the thermostat and humidistat to their correct
positions for automatic operation.
How Water Hardness Effects Scheduled
Maintenance
Your humidifier will accumulate minerals, such as calcium and lime, after
operating for a short period – a sure sign that the humidifier is producing
humidity. The amount of accumulation depends on the hardness of the
water in your area, which means that cleaning frequency will vary from
region to region. You can recognize that cleaning is necessary when the
pores in the evaporative pad begin to become plugged with mineral
deposits.
At a minimum, you humidifier will need to be cleaned at the beginning (or
end) of every humidifying season (i.e., the months when you heat your
home). Depending on the hardness of your water, mid-season cleaning
may also be necessary. In areas with particularly hard water, installation
of a Skuttle Automatic Flushing Timer (see page 6) will increase the inter-
vals between cleanings.
WARNING: Excessive buildup of minerals is detrimental to the internal
parts of your humidifier, as well as to the evaporative process.