Day and Night R4H3 Installation Instructions Manual - Page 4

Browse online or download pdf Installation Instructions Manual for Heat Pump Day and Night R4H3. Day and Night R4H3 18 pages. R?410a split system heat pump

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INSTALLATION INSTRUCTIONS

UNIT SUPPORT

NOTE: Unit must be level " 2 degrees {inch rise or 3/8

fall per foot of run (10mm rise or fall per 305 mm of run) } or

compressor may not function properly.

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.

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 property damage.

Top surface of platform must be above estimated snow-

fall 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

(152mm) 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

minimize

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.

noise

and

vibration

R−410A Split System Heat Pump

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.

CAUTION

PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in property damage.

Inadequate unit support may cause excessive vibration,

noise, and/or stress on the refrigerant lines, leading to re-

frigerant line failure.

Figure 2

Tie Down Knockouts

3/8" (10mm) dia. Tie Down Knockouts

In Base Pan (2 places)

Base Pan Width

Inches (mm)

Base Pan Width x

Knockouts

Depth

23x23

7−3/4

(584x584)

(197)

25−11/16x25−11/16

9−1/16

(652x652)

(230)

31−1/8x31−1/8

9−1/16

(791x791)

(230)

35x35

9−1/16

(889x889)

(230)

View From Top

Base

Pan

Depth

Tie Down

Minimum

Mounting Pad

Dimensions

4−7/16

23x23

(113)

(457)

(584x584)

4−7/16

21−1/4

26x26

(113)

(540)

(660x660)

31−1/2x31−1/2

6−1/2

24−5/8

(625)

(165)

(800x800)

−3/8

6−1/2

35x35

(889x889)

(165)

(722)

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