Trane EHUMD800ASM00BA Installation & Maintenance Instructions Manual page 19

START-UP PROCEDURE
1 . Once the supply water, drain, steam hose, electrical power and control wiring connections are complete, make sure canister is fully seated
into drain valve and three wire connectors on top of canister are secure . (High water probe wire and two interchangeable electrode wires .)
2 . Attach side panel and front door .
3 . Open saddle valve allowing water to flow to humidifier . Check for leaks .
4 . Turn humidistat to OFF .
5 . Close main power switch energizing humidifier .
6 . Press "On/Off" button on humidifier . The "On/Off" light will illuminate green .
7 . Make sure the HVAC blower is operating and adjust the humidistat to initiate a call for humidity .
The "Steam" light will illuminate green indicating a call for humidity and the "Fill" light will illuminate green indicating the fill valve is open
allowing the canister to fill . You should also hear the water flowing . If water flows down drain while humidifier is filling, check for
kinks or obstructions in the fill hose or fill cup and make sure the O-ring in the drain valve is properly seated in the groove and
not damaged or deformed.
8 . Once the "Fill" light turns off, to verify that the humidifier will drain properly, press the "On/Off" button to turn humidifier off . You may hear
the fill valve open allowing cold water to flow into the canister to cool the water in the canister . The "Drain" light will flash green for 15
seconds then turn green for four minutes while the canister drains . Once the "Drain" light turns off, the drain cycle is complete .
9 . Set the humidistat to proper level .
10 . Press "On/Off" button to turn humidifier on .
OPERATING MODES
When the humidifier is powered and turned on, the "On/Off" light is illuminated green .
During fill cycles, the "Fill" light illuminates green .
When the humidifier is turned on, any time the Humidifier Control sends a call for humidity, the "Steam" light illuminates green .
Any time the drain valve is activated, the "Drain" light illuminates green .
During initial start up with a new canister, the humidifier may run through a series of fill/drain cycles until the conductivity of the water is in
a range that allows the humidifier to generate steam at the rated capacity . If the conductivity of the water is low, it may take a week or more
for the humidifier to generate steam at the rated capacity . The rated capacity is achieved when the humidifier is detecting a nominal current
of either 11 .5 or 16 .0 amps between the electrodes . If the humidifier has not reached capacity after 168 hours of operation, the "Steam" light
will illuminate yellow on a call for humidity . The humidifier will continue to operate with a yellow "Steam" light, and may satisfy the humidity
requirements . Once rated capacity is reached, the "Steam" light will illuminate green .
The internal controller adjusts water level in the canister to maintain the nominal current between the electrodes . As minerals build up on the
electrodes, their effectiveness decreases, so the controller will increase the water level to submerge more of the electrode surface . When the
water has reached the high level probe in the canister and the internal controller no longer detects nominal current, the "Service" light will flash
red indicating that the canister needs to be replaced .
If the humidifier attempts to drain the canister and cannot, the drain and fill valves will pulse on and off for four seconds to dislodge minerals
which may be blocking the drain valve ports . The "Drain" and "Fill" lights will flash on and off when this occurs .
Any time power is disconnected or humidifier is turned off, the internal timer for start-up and drain cycles is reset .
If the humidifier has operated 168 hours without a drain cycle, the drain valve will open and drain the canister . Normal operation will continue .
If the humidifier is operating and a power failure occurs, once power is restored, the "On/Off" light will flash green for one minute, then the
humidifier will turn on .
END OF SEASON /PERIOD OF INACTIVITY SHUT-DOWN
The humidifier does not need to be turned off at the end of the humidification season . If 72 hours elapse without receiving a call for humidity,
the canister will automatically drain . The "Drain" light will remain lit for 24 hours . This may also occur during periods of inactivity during the
humidification season . The humidifier will resume normal operation when a call for humidity is made .
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