ClimateMaster DC Series Installation Manual download pdf (Page 5)

Residential H&V - 60Hz R22 &R410A

Rev.: 22 Dec, 2008

climatemaster.com

Horizontal Installation

Mounting Horizontal Units

Horizontal units have hanger kits pre-installed from the

factory as shown in ﬁ gure 1. Figure 3 shows a typical

horizontal unit installation.

Horizontal heat pumps are typically suspended above a

ceiling or within a sofﬁ t using ﬁ eld supplied, threaded rods

sized to support the weight of the unit.

Use four (4) ﬁ eld supplied threaded rods and factory

provided vibration isolators to suspend the unit. Hang the

unit clear of the ﬂ oor slab above and support the unit by the

mounting bracket assemblies only. DO NOT attach the unit

ﬂ ush with the ﬂ oor slab above.

Pitch the unit toward the drain as shown in Figure 2 to

improve the condensate drainage. On small units (less

than 2.5 tons/8.8kW) ensure that unit pitch does not cause

condensate leaks inside the cabinet.

Drain

Connection

1/4" [6.4mm]

for drainage

Figure 1: Hanger Bracket

Figure 2: Horizontal Unit Pitch

NOTICE! Failure to remove shipping brackets from spring-

mounted compressors will cause excessive noise, and could

cause component failure due to added vibration.

Horizontal Unit Location

Units are not designed for outdoor installation. Locate

the unit in an INDOOR area that allows enough space for

service personnel to perform typical maintenance or repairs

without removing unit from the ceiling. Horizontal units

are typically installed above a false ceiling or in a ceiling

plenum. Never install units in areas subject to freezing or

where humidity levels could cause cabinet condensation

(such as unconditioned spaces subject to 100% outside air).

Consideration should be given to access for easy removal of

the ﬁ lter and access panels. Provide sufﬁ cient room to make

water, electrical, and duct connection(s).

If the unit is located in a conﬁ ned space, such as a closet,

provisions must be made for return air to freely enter the

space by means of a louvered door, etc. Any access panel

screws that would be difﬁ cult to remove after the unit is

installed should be removed prior to setting the unit. Refer to

Figure 3 for an illustration of a typical installation. Refer to unit

speciﬁ cations catalog for dimensional data.

Conform to the following guidelines when selecting

unit location:

Provide a hinged access door in concealed-spline or

plaster ceilings. Provide removable ceiling tiles in T-bar

or lay-in ceilings. Refer to horizontal unit dimensions for

speciﬁ c series and model in unit speciﬁ cations catalog.

Size the access opening to accommodate the service

technician during the removal or replacement of the

compressor and the removal or installation of the unit

itself.

Provide access to hanger brackets, water valves and

ﬁ ttings. Provide screwdriver clearance to access panels,

discharge collars and all electrical connections.

3. DO NOT obstruct the space beneath the unit with piping,

electrical cables and other items that prohibit future

removal of components or the unit itself.

4. Use a manual portable jack/lift to lift and support the

weight of the unit during installation and servicing.

The installation of water source heat pump units and all

associated components, parts and accessories which make

up the installation shall be in accordance with the regulations

of ALL authorities having jurisdiction and MUST conform to

all applicable codes. It is the responsibility of the installing

contractor to determine and comply with ALL applicable

codes and regulations.

3/8" [10mm] Threaded

Rod (by others)

Vibration Isolator

(factory supplied)

Washer

(by others)

Double Hex Nuts

(by others)

Section 10 - Packaged IOM 5 4/24/09 3:16:48 PM

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ClimateMaster DC Series Installation Manual Page 5

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