SUPPLY WATER
Plumb the humidifier to cold, hard or softened water. Do not use hot water because unheated supply water is used to cool water
draining from the humidifier. Do not use demineralized or reverse osmosis water. For proper operation, supply water pressure must be between
25 psi and 120 psi. Hard or softened water may be used provided it has conductivity between 125 microS/cm and 1250 microS/cm. See Table 2.
Supply water piping must be free of oils, lubricants, solder flux and other contaminants, which can cause foaming.
Follow local plumbing codes. An external backflow preventer may be needed.
Install the saddle valve according to the instructions printed on the bag, or install a tee with a shut-off valve to an accessible cold water pipe.
Run 1/4” copper tubing from the saddle valve/shut-off valve to the humidifier. Connect it to the fill valve. Double wrench to prevent leaking and
damage to valve. Addition of a stainless steel braided water line can help reduce valve noise.
Note: Adding an inline particulate filter can increase canister life in areas with high levels of suspended solids. DO NOT use filters that release
scale inhibitors, filters of this type can significantly decrease canister life.
PREPARE HUMIDIFIER FOR MOUNTING
Unpack carton. Open front panel by removing screw and lifting panel up and away from humidifier. Disconnect three wires from top of canister
by pulling straight up. The two large wires are the electrode conductors. The smaller wire is connected to the high water level sensor. Remove
canister by pulling it up and out of drain assembly. Remove two screws on right side of humidifier and lift side panel off housing to expose
electrical compartment.
MOUNT HUMIDIFIER
Secure humidifier to sturdy wall using screws provided, or to sheet metal duct. Humidifier initially weighs 23 lbs with a full canister, but will
increase in weight over time due to the precipitation of minerals inside the canister. Make sure mounting system will support weight. If mounting
to a stud-framed wall, install two spanner boards to studs and fasten humidifier to spanner boards. Make sure humidifier is mounted plumb.
INSTALL STEAM DISPERSION TUBE
Make sure steam dispersion tube is mounted higher than the humidifier so that condensation that forms in the steam hose runs back into the
canister. If the dispersion tube cannot be mounted higher than the humidifier or if the steam hose must extend up from the humidifier then down
to the dispersion tube due to an obstruction, a drip tee and drain trap system (Part #5628RP) must be installed as shown in Figure 4.
Drill a 1-1/4” diameter hole in a vertical surface of the duct at the location chosen for the dispersion tube. Position the dispersion tube so it is
angled up, regardless of airflow direction. UP is stamped on the mounting bracket to aid in proper installation. Secure with four sheet metal
screws provided.
INSTALLATION INSTRUCTIONS (CONTINUED)
Six feet of steam hose is provided with the humidifier. If the steam hose must be cut, use a hacksaw. If additional length is required, use
1” O.D. metal or copper pipe. Do not use PVC pipe for steam line. Insulate pipe with 1” thick insulation rated for 212°F or higher to reduce
steam loss. See Table 4 for humidifier capacity at various lengths of steam hose and pipe.
Use the steam hose provided. Other hoses may have impurities which can cause foaming in the canister. Foaming can cause water level
inaccuracies, reduced steam production and water sputtering into the duct. When using pipe, remove all traces of residual materials used to
connect the pipe to prevent foaming.
Verify that the O-ring is in place in the groove in the drain assembly. Dampen the O-ring with water (DO NOT use oil, grease, or any lubricant
besides water), then reinsert the canister with the caution label positioned toward the front of the unit.
Attach steam hose to dispersion tube and then to top of canister using hose clamps provided. Make sure steam hose has a constant slope of at
least 2” per foot between the dispersion tube and the humidifier. Any and every low spot in the steam hose or pipe must have a drip tee and drain
trap. Fill drain trap with water before making final connections. Support the steam hose in multiple locations over its span to prevent sagging.
Attach and fully seat the electrode conductors (interchangeable) and the high water level sensor wire to the top of the canister.
INSTALL STEAM HOSE
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