Herrmidifier Co 465-C1 User Manual

Introduction ........................................1

Specifications ......................................1

Capacity Selection Guide ..................1

Installation

Physical installation ......................2

Electrical Installation ....................5

Operation of Humidifier ....................6

Maintenance........................................7

Unit Diagram and Parts List ..............9

Warranty ..............................Back cover

Manual for:

• Installation

• Operation

• Maintenance

Duct Mount
Rotating Drum Humidifier

Model 465-C1

Table of Contents

252911-001 9/04

CAUTION: Read installation,
operation, and maintenance
instructions carefully for safe
operation. Exercise the usual
precautions when working
with electricity.

Type of Unit Rotating Drum

Duct Mounting Return Supply

GPD @ 140 ° F 22.5 17.1

GPD @ 120 ° F 16.5 12.4

GPD @ 100 ° F 10.6 7.8

Voltage 24V

Unit Dimensions 14 3/4” W x 11” D x 11 1/2” H

Duct Opening 4 5/8” x 7 5/8”

Standard Equipment Wall / duct mount humidistat

Self piercing saddle valve

7” Flange & Damper

Features • Externally held evaporative media

• Independent mounting bracket

• Right or left hand discharge
without disassembly

• All brass valve assembly

• Stainless steel cage

• Observation window in front door

• 2 year warranty

Sq. Footage

of Home

1000

1500

2000

2500

3000

4000

Tight Home

(GPD*)

0.5

3.0

5.0

7.5

10.0

14.5

Average Home

(GPD*)

5.0

10.0

14.0

19.0

23.5

33.0

Loose Home

(GPD*)

10.0

16.5

24.0

30.5

37.5

51.5

The above calculations are for reference only and are based
on the following:

• Inside temperature 70° F/35% relative humidity

• Outside Temp 20° F /70% relative humidity

• 8 foot ceiling height

• Internal moisture gain of one pound per hour

• Furnace on-time of 70%

This chart uses A.R.I. standard designations:

A “Tight Home” is assumed to be well insulated with vapor
barriers, tight storm windows and doors, and a dampered
fireplace. Air exchange rate of .50 changes per hour.

An “Average Home” is insulated and has a dampered
fireplace, but there are no vapor barriers, storm doors, or
storm windows. Air exchange rate of 1.0 change per hour.

A “Loose Home” is generally one constructed before 1930,
has little or no insulation, no storm doors, storm windows,
weather stripping or vapor barriers, and often no effective
dampering of fireplaces. Air exchange rate is as high as 1.5
changes per hour.

* Gallons Per Day (humidifier capacity)

1

Introduction

The benefits of a properly
humidified environment
(35-50% Relative Humidity)
are many. They include both
personal comfort as well as
the preservation of furniture,
draperies, carpets, wooden
floors and cabinets, paintings,
pianos, etc.. Your home will be
more comfortable at a lower
temperature (i.e.: 68° F) at 30­40% Relative Humidity (RH)
than at 71° F without
controlled humidity. Since
every degree of temperature
setback represents about 3%
of heating costs, this can
represent a significant annual
savings.

During the heating season,
cold air is brought into the
home and heated. When
heated, this air dries out and
greatly increases its capacity to
hold more moisture. By using
a humidifier, a source of water
is provided to satisfy this
increased moisture holding
capability, rather than having
it drawn from our body
surface and the surrounding
furnishings in the home.

A properly maintained and
efficiently operating
humidifier is a source of
improved indoor air quality
and personal comfort. We
trust you will enjoy all the
benefits of your new
humidifier.

Introduction

Capacity Selection Guide

Specifications

2

Physical Installation

Remember to select a location that is readily accessible for periodic inspection and
cleaning of your humidifier. This unit should be located on the cold air return side of
the system for best results. However, if space does not permit, it can be mounted on
the warm air supply side of the system. Please keep in mind that the evaporative
capacity of the humidifier will be reduced if this alternate installation method is
utilized.

CAUTION

Only a trained service person should install this humidifier. Do not connect the
unit to power source until installation is complete. A thorough checkout of the
unit installation should be completed before operation. Failure to follow these
directions may void the manufacturer’s original warranty.

Prior to installing this product...

1. Read the instructions carefully to
ensure safe operation. Failure to
follow them could damage the
product or cause personal injury,
and/or property damage..

2. Check the ratings given on the
product to make sure it is suitable for
your application.

Preparing ductwork

1. Level and attach the mounting
template to the selected location.

2. Drill 1/8” diameter holes and cut the
opening as marked on the template.
Remove the template from the duct.

3. Cut a 7” diameter bypass hole in the
opposite duct using the Return Air
Flange as a template.

4. Insert the notched flange of the
Return Air Flange through the hole
and bend the tabs inside the duct to
secure the flange to the duct.

5. Position the Mounting Plate to the air
duct with (2) tangs up and (1) tang
down. If needed, position the
Damper Plate behind the Mounting
Plate.

6. Secure the Mounting Plate to the air
duct with (4) sheet metal screws and
spring nuts (provided).

Mounting plate

Duct Screws

Return air
flange

Return Air Duct

3

Physical Installation

Installing Humidifier

1. Remove the window panel (panel with the
label) by sliding it up, pulling its bottom away
from the humidifier and then pulling down.

2. Separate the top half from the pan by sliding
the stainless steel retainer off the lips of the
top half and pan. Swing the pan down to
disengage the metal loops on the opposite
end.

3. Hang the top half of the unit on the (2) tangs
of the Mounting Plate.

4. The round inlet hole should be to the left or
right, as necessary.

5. The top half must be positioned so that the
step in the side opening engages the
Mounting Plate tangs which prevents lateral
movement of the unit.

6. Remove and discard packing around the drum
assembly.

7. Slide the closed end of the drum assembly onto
the motor shaft and place the other end in the
“U” shaped holder.

8. Slide the stainless steel retainer over the shaft
notch to hold the drum shaft in place.

NOTE: Do NOT use the drum to turn the motor.
Damage to the motor gears will result.

9. Latch the pan onto both metal loops at the
outlet end of the unit.

10. Swing the pan up to engage the Mounting
Plate tang. The pan will nest into the top.

11. Slide the stainless steel retainer over the lips of
the top half and pan at the water inlet end to
lock the assembly into place.

12. Install the humidistat based on the instructions
located inside the box.

13. Install the saddle valve using the instructions
on the package and turn on the water supply.

14. The water level should be 1 3/8” below the
bottom edge of the 5 1/2” diameter bypass
duct opening. If necessary, adjust the float/rod
assembly to provide the correct water level.

window
panel

Top half

Pan

Stainless steel
retainer

Drum
assembly

Mounting
plate

Tangs