Aprilaire 1180 User Manual download pdf

Aprilaire Steam Humidifier FAQ’s

General

 Question: What is an Aprilaire Steam Humidifier?

Answer: An Aprilaire Steam Humidifier is a self-contained device that takes tap water

and boils it, using electric immersion heaters, to create steam. The steam flows through

a steam hose and is injected into a moving airstream by way of a distribution tube. The

steam flows out of the distribution tube into the duct work through a series of small

‘tubelets’ which create an even, drip-free transfer of steam into the moving airstream.

 Question: What is the difference between Models 1150, 1160, and

1180?

Answer: The Aprilaire Steam Humidifier Model 1150 is a 12 lbs/hr capacity unit which

uses an ‘on/off’ Automatic Steam Humidifier Control. The Model 1160 is a 24 lbs/hr

capacity unit which uses a ‘modulating’ Automatic Steam Humidifier Control. The

Model 1180 is a 48 lbs/hr capacity unit which uses a ‘modulating’ Automatic Steam

Humidifier Control. In addition to the higher capacity, the modulating control of the

Model 1160 and 1180 allows for more flexibility in controlling indoor relative humidity.

Installation

 Question: Are there types of water that the steam units should not be

connected to?

Answer: Yes. The units should not be connected to deionized water (DI) or reverse

osmosis (RO) systems. Both DI & RO water lack the conductivity required to enable

the water level probe control to properly function and allow the humidifier to operate.

In addition, DI water can have a corrosive effect on the non-stainless steel components

in the system, leading them to pre-mature failure.



Question: How much hard piping can you use with the 10 ft. steam

hose to extend the

distance from the humidifier to the steam

distribution tube?

Answer: The issue is really about how much of a loss in steam capacity is acceptable

because the shorter the distance from the steam humidifier to the distribution tube, the

less steam loss there will be due to condensation. This is true whether using steam hose

alone or in combination with hard copper tubing.

The 1 ½ in. diameter steam hose supplied with Aprilaire Steam Humidifier Models 1150

and 1160 limits the loss to 0.15 lbs/hr for every foot of hose. When using non-insulated

copper tubing of the same diameter, the loss is 0.11 lbs/hr for every foot of tubing.

When using copper tubing with fiberglass insulation, the condensation loss drops to

0.02 lbs/hr for every foot of tubing.

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Summary of Contents

Page 1 - Installation

Aprilaire Steam Humidifier FAQ’s General  Question: What is an Aprilaire Steam Humidifier? Answer: An Aprilaire Steam Humidifier is a self-contain

Page 2 - 240 VAC 208 VAC

The 2 in. diameter steam hose supplied with Aprilaire Steam Humidifier Model 1180 limits the loss to 0.20 lbs/hr for every foot of hose. When using no

Page 3

 Question: What are the recommended minimum and maximum distances for installing the steam tube from HVAC equipment components such as the coil, fi

Page 4 - Unit Operation

The key here is to size the ductwork accordingly, or if the ductwork is existing, increase the airflow. Please see the formula and example below for

Page 5

For ‘Hard’ water (hardness greater than or equal to 10 grains/gallon) the humidifier will attempt to initiate the auto drain sequence after 24 hours o

Page 6

Answer: No, the Automatic Steam Humidifier Control is designed to be powered from one humidifier and then send a command signal back to th

Page 7 - Maintenance

knob. What does this do? And what is the importance of the proportional control band? Answer: For the Model 1150 On/Off Control, the potentiometer is

Aprilaire 1180 User Manual

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Aprilaire 1180 User Manual

Browse online or download User Manual for Dehumidifiers Aprilaire 1180. Aprilaire Steam Humidifier FAQ`s [en]

Summary of Contents

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