700M OWNER’S MANUAL

Loading ...

ADDITIONAL INFORMATION FOR ALL MODELS

Be sure to keep replace dampers closed when not in use. They

provide an excellent escape route for heat, as well as humidity.

On occasion, indoor moisture producing activities such as clothes

drying, cooking, showers, etc., may raise the RH level higher than

it should be, even though the AprilAire Humidier is not operating.

Telltale indications are condensation or frost on cold surfaces

such as windows, doors, walls, etc. If such condensation persists

for several hours, your home should be ventilated to dissipate the

potentially damaging excess moisture.

EFFECT OF WATER CHARACTERISTICS

Your humidier is designed to operate using hot, cold, hard, or

mechanically softened water. Hot supply water, up to 140°F (60°C), is

required for the Model 300 or when using other AprilAire Evaporative

Humidiers in a heat pump application. It is recommended for all

models and applications to ensure maximum performance.

Water contains varying amounts of minerals. The residue remaining

as a result of hard water evaporation is primarily calcium and

magnesium components and is usually quite hard, scaly, and dense.

Residue from softened water tends to be soft and uffy and has a

greater volume than hard water deposits. In either case, the service

life of a Water Panel will be the same. The Water Panel should be

changed at least once a year with the exception of Models 400 and

400M which should be changed at least twice per heating season.

In the drain-equipped models, most of the mineral solids are ushed

down the drain.

WARNING

RISK OF SCALDING. Water temperature over 125°F (52°C) can cause

severe burns and scald instantly. Shut off the hot water supply before

disconnecting or tapping into any hot water supply line.

Loading ...

OWNER’S MANUAL - Page 13