30
CRUV INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
OPERATION
LW series controller
The LW series controller is a custom microprocessor-based water level controller
for DriSteem humidifi ers. The features of this controller are:
• Water level control
• Automatic drain and fl ush
• Variable skim times
• End-of-season drain
•
Onboard diagnostics: Ready water, Full, and Drain LEDs to assist
troubleshooting
When power is activated, the solenoid-operated water fi ll valve opens, fi lling
the evaporating chamber until the water level reaches the top probe (see
Figure 3-1), then the fi ll valve closes.
To ensure that a water seal is created in the fi eld-installed water seal:
1. Disconnect probe plug and cable from probe rod assembly (located on top
of the tank), allowing fill valve to energize and tank to fill.
2. Let fill water overfill humidifier tank and flow out of skim/overflow port for
several seconds to fill the water seal in the drain line.
3. Reconnect probe plug and cable. Create a call for humidify to ensure fill
valve opens.
Important:
Timer logic input wire (see Figure 32-1) must
be connected per wiring diagram for proper
automatic drain/fl ush and end-of-season drain
operation. Power light blinks off twice at
one-second intervals when these functions are
disabled. Verify wiring with diagram supplied
with humidifi er.
Start-up and operation:
