Specifications
21
VAPORMIST
®
MAINTENANCE
Standard water models
(VAPORMIST, continued)
2. Loosen the four cover bolts and remove the cover
assembly from the tank.
3. Clean the tank interior using a putty knife or similar
flat instrument.
4. Unplug probe plug assembly. Leave ground wire
connected to tank. Unscrew the probe rod
assembly and clean the plastic probe housing,
ensuring that all passageways are clear. Clean the
probe rods using steel wool or a similar mild
abrasive material. Inspect the composite plastic
probe housing for any signs of cracking,
roughness, or deterioration. If found, replace.
5. Install the probe and probe plug assembly. Verify
ground wire is solidly connected to tank.
6. Secure the chamber cover, making sure the cover
gasket is seated and the chamber is sealed.
7. Re-install the evaporating chamber.
• Reconnect the fill line.
• Reconnect the electrical plugs
(plugs are color coded).
• Reconnect the drain union.
• Reconnect the vapor hose.
8. 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 the table
at right for torque specifications.
• Verify that all plugs located under the humidifier
cover are completely plugged in.
9. Move the drain valve lever back to the auto
position.
10. Turn on the water supply.
11. Turn on the electrical power.
Off-season shut-down procedure
1. Switch off electrical power.
2. Remove enclosure.
3. Shut off water supply to makeup valve.
4. Drain evaporating chamber, and clean if necessary
(see “To inspect and service” on previous page).
5. Replace enclosure.
6. Leave chamber dry, power off and the water shut-
off valve closed until the next humidification
season.
Screw or lug location
Torque
inch-lbs Nm
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
VAPORMIST torque specifications
VM99-C-0302.pdf 21 11/19/2009 9:51:32 AM