MaInTenanCe
Inspect humidifier when servicing .
• Check for loose electrode connections on the canister. Replace electrode wires if connection is loose.
• Check system operation and inspect all plumbing connections and piping for signs of cracks or leaks.
• Inspect drain line to make sure it is not blocked and has constant downward slope. Clean or replace if necessary.
• Inspect steam hose to make sure it has no low spots and has constant upward slope from humidifier to dispersion tube in duct. If dispersion
tube is mounted below humidifier, inspect drip tee and drain .
1 . Turn humidifier off .
2 . Unit will go through drain cycle – 4 mins – and turn off when
complete .
3 . Disconnect main electrical power to humidifier at the circuit
breaker .
4 . Allow the unit to cool .
5 . Remove front door .
6 . Remove electrode wires, high water probe wire, steam hose and
canister .
7 . Remove O-ring from groove in drain assembly using a small screw
driver .
8 . Insect drain assembly and remove any debris – see TO CLEAN
THE DRAIN VALVE .
9 . Insert new O-ring into groove in drain assembly . (O-ring is
provided with Model 80 canister .) Dampen O-ring with water
before inserting canister . Do not use oil, grease, or any lubricant
besides water .
10 . Make sure strainer is inserted into bottom of new canister .
11 . Insert canister into drain assembly . Position canister with label
facing outward .
12 . Reconnect steam hose and wires ensuring wires are fully seated .
13 . Replace front door .
14 . Restore electrical power to humidifier .
15 . Turn humidifier On and verify green On/Off light is illuminated .
16 . See Start-up procedure .
17 . Check for leaks .
To RePlaCe THe CanISTeR
If water flow from the valve is restricted, disconnect the inlet fitting
and remove in line strainer from the inlet port using a small screw .
Clean or replace strainer (Part #4004) .
noTICe
• Allow humidifier to drain and disconnect power before servicing.
• Service should be performed by a qualified HVAC technician.
To Clean THe DRaIn ValVe
1 . Turn humidifier off .
2 . Unit will go through drain cycle – 4 mins – and turn off when
complete .
3 . Disconnect main electrical power to humidifier at the circuit breaker .
4 . Allow the unit to cool .
5 . Remove front door .
6 . Remove electrode wires, high water probe wire, steam hose and
canister .
7 . With your finger swirl the fluid/precipitate mixture in the bottom of
the drain valve reservoir .
8 . Using a sponge or paper towels soak up the water in the reservoir,
if necessary use a wet/dry vacuum to remove residue .
9 . Clean the inside of the drain port (where coil projects out) by gently
swabbing with a bent cotton swab or other soft implement .
10 . Rinse the drain valve reservoir with clean water and vacuum as
necessary .
11 . Replace canister, reconnect steam hose and wires ensuring wires
are fully seated .
12 . Replace front door .
13 . Restore electrical power to humidifier .
14 . Turn humidifier On and verify green On/Off light is illuminated .
15 . See Start-up procedure .
16 . Check for leaks .
To SeRVICe THe fIll ValVe
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