3
DRISTEEM GTS HUMIDIFIER INSTALLATION AND OPERATION MANUAL
Fill valve
Float
Fill valve closes when water level
rises to this probe.
Fill valve opens when water level
is below this probe.
Controller disables burner if water level
drops below this probe.
Heat exchanger
Open drain
Water tempering device
Air gap
Drain piping
Drain valve
Subpanel/control components
Flue connection
Overflow outlet
Gas valve
Blower
Supply water line
Redundant probe
(
Redundant low water cutoff switch
if DI/RO water option)
Water level probe
(
Float-operated low water cutoff switch
if DI/RO water option)
Thermal trip
Temperature sensor
Tap/softened water
GTS humidifier shown
Steam hose or tubing
Steam outlet
Humidifi ers using tap or softened water control water levels
electronically using a three-rod probe. A redundant probe is used
as a safety device.
Humidifi ers with the RO/DI water option control water level using a
fl oat valve. A low-water cutoff switch and a redundant low-water cutoff
switch are used as safety devices.
FIGURE 3-1: GTS HUMIDIFIER COMPONENTS AND WATER LEVEL CONTROL TYPES
DI/RO water option
Tap/softened water
OM-1247
Product overview