HP H4H3 manual Unit Support, Ground Level Installation, Roof TOP Installation, Fastening Unit Down

Models: H4H3

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INSTALLATION INSTRUCTIONS

3-phase R-410A Split System Heat Pump

 

 

UNIT SUPPORT

NOTE: Unit must be level 2 degrees (a inch rise or fall per foot of run) or compressor may not function properly.

Figure 2

Tie Down Knockouts

 

 

A. GROUND LEVEL INSTALLATION

The unit must be level and supported above grade by beams, platform, or a pad. Platform or pad can be of open or solid construction but should be of permanent materials such as concrete, bricks, blocks, steel, or pressure- treated timbers approved for ground contact. Soil conditions must be considered so that the platform or pad does not shift or settle and leave the unit partially supported. Minimum pad dimensions are shown in Figure 2.

If beams or an open platform are used for support, it is recommended that the soil be treated or area be graveled to reduce the growth of grasses and weeds.

a” dia. Tie Down Knockouts In Base Pan (2 places)

View From Top Product Family: H series

Base

Pan

Depth

To minimize vibration or noise transmission, it is recommended that supports not be in contact with the building structure. However, slabs on grade constructions with an extended pad are normally acceptable.

! CAUTION

PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in proper‐ ty damage.

Top surface of platform must be above estimated snowfall level to prevent snow blocking coil and to allow water melt to drain from unit.

B. ROOF TOP INSTALLATION

This type of installation is not recommended on wood frame structures where low noise levels are required.

Supporting structure or platform for the unit must be level. If installation is on a flat roof, locate unit minimum 6 inches above roof level.

Place the unit over one or more load bearing walls. If there are several units, mount them on platforms that are self-supporting and span several load bearing walls. These suggestions are to minimize noise and vibration transmission through the structure. If the structure is a home or apartment, avoid locating the unit over bedrooms or study.

NOTE: When unit is to be installed on a bonded guaranteed roof, a release must be obtained from the building owner to free the installer from all liabilities.

C. FASTENING UNIT DOWN

If conditions or local codes require the unit be attached in place, remove the knockouts in the base pan and install tie down bolts through the holes (refer to Figure 2).

Contact local distributor for hurricane hold-down details and the P.E. (Professional Engineer) certification, when required.

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B

A

 

 

 

 

 

Base Pan Width

 

 

Base Pan

 

Tie Down

Minimum

(Bumpout)

Knockouts

Mounting Pad

Width x Depth

 

 

 

A

B

C

Dimensions

(inches)

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!CAUTION

PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in property damage.

Inadequate unit support may cause excessive vibra‐ tion, noise, and/or stress on the refrigerant lines, leading to refrigerant line failure.

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506 01 5102 00

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HP H4H3 manual Unit Support, Ground Level Installation, Roof TOP Installation, Fastening Unit Down

H4H3 specifications

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