Honeywell HM700A1000, Installation Instructions Manual

HM700A1000

5

33-00118—01

Table 4. Steam humidifier(s) necessary for application.

a

a

 In the table above, 

11 GPD

 indicates a steam humidifier configured to run on 120 V and 

22 GPD

 indicates a steam humidifier 

configured to run on 240 V.

LOCATION

Mount on a suitable wall or vertical surface. Do not sit the unit 

on the floor. Allow clearances required for plumbing and 

electrical connections. Clearance dimensions shown are for 

reference only and are the minimum required for maintenance 

of the humidifier. Consult local and national codes before final 

location and installation. Honeywell does not accept 

responsibility for installation code violations.

• Install only in areas with ambient temperature 41 to 104 °F 

(5 to 40 °C) and relative humidity 5 to 95 %.

• When possible install below the steam distributor. Take 

care to provide proper steam line routing and proper 

condensate traps.

• DO NOT locate the humidifier any further then absolutely 

necessary from the steam distributor location as net output 

will be reduced as a result of heat loss through the steam 

line.

• When possible, mount the HM700 humidifier at a height 

convenient for servicing.

NOTE: Do not mount on hot surfaces, where freezing 

can occur, vibrating surface, or floor.

Mounting with Keyholes

1.

The HM700 humidifier is wall mounted using a keyhole 

located on the back of the unit cabinetry.

2.

Use #8 x 2 in. (5 cm) screws mounted into 2x4 studs or 

better. 2 screws are needed, one for hanging the unit 

and one for securing so it will not lift off the keyhole.

3.

Install the top screw so that 1/4 in. (6 mm) is exposed. 

Raise the unit and place the screw head through the 

keyhole.

4.

Make sure the unit is level and then insert and tighten 

the second screw through the bottom hole. Tighten the 

top screw. See Fig. 3.

NOTE: Use screws longer than 2 in. (5 cm) if drywall or 

other spacer is present.

Fig. 3. Mounting with keyholes.

Construction 

Type

8,000 ft

3

12,000 ft

3

16,000 ft

3

20,000 ft

3

24,000 ft

3

28,000 ft

3

32,000 ft

3

Tight

11 GPD

11 GPD

11 GPD

11 GPD

11 GPD

11 GPD (x2)

or

22 GPD (x1)

11 GPD (x2)

or

22 GPD (x1)

Average

11 GPD

11 GPD

22 GPD

22 GPD

22 GPD

11 GPD (x3)

or

22 GPD (x2)

11 GPD (x3)

or

22 GPD (x2)

Loose

22 GPD

22 GPD

22 GPD

11 GPD (x3)

or

22 GPD (x2)

11 GPD (x3)

or

22 GPD (x2)

11 GPD (x4)

or

22 GPD (x2)

11 GPD (x5)

or

22 GPD (x3)

INSTALL SECOND

SCREW AFTER 

HANGING

HUMIDIFIER 

#8 X 2 IN. (5 CM)

 WOOD SCREWS

INSERT SCREW LEAVING

1/4 IN. (6 MM) EXPOSED.

HANG UNIT, THEN 

TIGHTEN SCREW.  

2X4 OR OTHER

STRUCTURAL

MEMBER

KEYHOLE

M35759

HOLE