Specifications

Page 36 • DRI-STEEM CRUV Electric Humidifier Installation, Operation, and Maintenance Manual
Maintenance
Tap/softened water
Table 36-1:
CRUV torque specifications
Screw or lug location
Torque
in-lbs N-m
Power block 16 1.8
Contactor 16 1.8
Heater
nut
8-32 (8.5 mm) nut 20 2.2
10-32 (9.5 mm) nut 25 2.8
Heater
wire lug
6 gauge (10 mm
2
) wire 35 4.0
8 gauge (6 mm
2
) wire 25 2.8
10-14 gauge (<6 mm
2
) wire 20 2.2
mc_070710_1655-CRUV
Humidifier De-scaling Solution
Scale buildup on humidifier heaters acts as an
insulator, reducing humidifier performance while
increasing energy costs. To keep humidifiers
operating as efficiently as possible, remove scale
with DRI-STEEM's Humidifier De-scaling Solution,
available for purchase from your DRI-STEEM
representative or distributor.
The De-scaling Solution cleans without risk
of corroding humidifier tanks or welds. The
De-scaling Solution also cleans surfaces
unreachable by hand scraping.
DRI-STEEM's Humidifier De-scaling Solution is
the only approved cleaner/de-scaler for use with
DRI-STEEM humidifiers. Use of other cleaners/
de-scalers may void your DRI-STEEM warranty.
PFBB
• Install the probe and probe plug assembly. Verify ground
wire is solidly connected to tank.
• Secure the chamber cover, making sure the cover gasket is
seated and the chamber is sealed.
• Re-install evaporating chamber:
– Reconnect the fill line.
– Reconnect electrical plugs (the plugs are color coded).
– Reconnect the drain union.
– Reconnect the vapor hose.
• Verify electrical connections:
– Verify that all DIN rail-mounted components are securely
fastened to DIN rail.
– Verify that all power terminal screws and lugs are tight
from power block to heaters. See torque specifications in
Table 36-1.
– Verify that all plugs under the humidifier cover are
completely plugged in.
• Move the drain valve lever back to the auto position.
• Turn on the water supply.
• Turn on the electrical power.
3. Off-season maintenance
• Perform complete inspection and cleaning of the following:
– Heaters
– Probe rods
– Skimmer port and water seal
– Humidifier tank
• After cleaning, the humidifier should remain empty until
humidification is required.