Johnson Controls 8000 Installation Options and Effect Water Characteristics, Operating Modes

INSTALLATION OPTIONS AND EFFECT OF

WATER CHARACTERISTICS

Your Steam Humidifier can be installed to operate using 120 Volts, 208 Volts or 240 Volts.. The higher the voltage, the higher the potential output:

Voltage	Rated Output
120 Volts	4 lbs../hour (11..5 gallons/day maximum)
208 Volts	7 lbs../hour (20..5 gallons/day maximum)
240 Volts	8 lbs../hour (23..3 gallons/day maximum)

It may take several days for the humidifier to reach rated capacity depending on the input voltage and the electrical conductivity of the water. 120 volt systems take longer to reach rated capacity than 240 volt systems.. The humidifier should always be plumbed to cold water but the water can be softened or unsoftened.. “Hard” water, which has a high mineral content, and softened water generally has higher conductivity than naturally soft water.. Systems plumbed to higher conductivity water will reach capacity sooner than systems plumbed to low conductivity water.. As the humidifier operates, minerals build up in the canister, which increases the conductivity of the water.. With a new canister, allowing the humidifier to operate continuously (along with the indoor unit blower) will allow it to reach rated capacity in the shortest amount of time..

OPERATING MODES

When the humidifier is powered and turned on, the “On/Off” light is illuminated green..

When the canister is being filled or replenished with water, the “Fill” light illuminates green..

When the canister is being drained, 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 normal operation.. During this time, the “Steam” light illuminates green.. If the humidifier cannot produce steam at the rated level after trying for 168 hours, the “Steam” light illuminates yellow.. The humidifier continues to operate in this state until the rated output is reached..

The conductivity of naturally soft water, hard water, and softened water changes as the water heats up, but the internal controller adjusts the water level to maintain a nominal current between the electrodes.. Over the life of the canister, minerals that build up on the electrodes will reduce their effective surface area and affect the resistance between them.. The operating water level will increase with use until it reaches the high water

level probe.. At that point, the “Service” light will flash red indicating that the canister needs to be replaced.. The humidifier will continue to operate but with reduced output..

When the humidifier begins a drain cycle, the fill valve opens to introduce cold water into the canister.. This is done to prevent hot water from entering the drain.. The drain valve remains open for four minutes to allow all water to drain from the canister..

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

If the humidifier does not receive a call to operate in 72 hours, the humidifier controller drains the canister.. The drain light will remain on until there is a humidity call or 24 hours has elapsed.. The humidifier will resume normal operation when a call for humidity is made..

DISPLAY PANEL

TABLE 1 – Display Panel

Indicator	Light	Function
	Off	Humidifier is turned off or not receiving power..
	Solid	Humidifier is turned on..
	Green
	Flashing	Humidifier is preparing to turn on.. Occurs if power is
		disconnected, then restored with switch ON.. Flashes
	Green
		for one minute..
	Solid	Normal Operation.. Fill valve is energized allowing
		water to flow into canister via fill cup.. (Does not
	Green
		illuminate when tempering water during drain cycle..)
	Flashing	Fill and Drain Valves are pulsing to dislodge mineral
	Green	build-up in canister.. Flashes 10 times in four seconds..
	Solid	Fault Mode.. Indicates canister needs water but
		cannot fill.. Humidifier shuts down.. (Occurs if high
	Red	water probe does not detect water after fill valve is
		energized for 40 minutes..)

- 6 - - 7 -