Carrier 42C,V Manual de instalación descargar pdf (Pagina 43)

b. Use rods and fasteners to suspend the unit at the

factory-provided 0.375-in. hanger slots (4) with

rubber grommets on the top of the unit on the

42CA and CE units.

NOTE: The four mounting holes and hanger slots

with rubber grommets are NOT for balancing unit.

6. The 42CA units without plenums and 42CE with bottom

inlet may be installed in noncombustible areas only.

NOTE: The installation of horizontal concealed units must

meet the requirements of the National Fire Protection Associa-

tion (NFPA) Standard 90A or 90B concerning the use of con-

cealed ceiling space as return-air plenums.

42V UNITS — While the manufacturer is not involved in the

design and selection of support methods and components, it

shall be noted that unacceptable system operating characteris-

tics and/or performance may result from improper or inade-

quate unit structural support.

1. Select the unit location. Allow adequate space for free air

circulation, service clearances, piping and electrical

connections, and any necessary ductwork. For specific

unit dimensions, refer to Fig. 13-23. Allow clearances ac-

cording to local and national electric codes. See Fig. 39

for minimum clearance recommendations.

2. Make sure the floor is able to support the weight of the

unit. See Table 2 for nominal unit weight. Vertical units

are designed to be floor mounted or otherwise supported

from below, and bolted to the wall or floor structure

through the mounting holes provided in the chassis.

These units may be wall hung only when originally or-

dered from the factory for wall mount applications.

3. Ensure wall behind unit is smooth and plumb; if

necessary, install furring strips on walls with irregular

surfaces or mullions. Furring strips must be positioned

behind mounting holes in unit (42VA, VB, VF units).

Fasteners, furring strips, and other seals (if required) must

be field-supplied.

4. Remove all wall and floor moldings from behind the unit.

5. Ensure 42VA top panel (under window application) and

42VB, VF front panel has been removed from unit to

obtain access to the four 0.75-in. mounting holes. Hanger

rods and fasteners and other required hardware must be

field-supplied.

6. Move unit into position. Ensure unit is level or pitched

towards drain to ensure proper drainage and operation.

Pitch of suspended unit can change after coil is filled;

recheck after filling coil.

7. Adjust 42VA, VB, VC, VE, VF units leveling legs so unit

is level. Unit must be level for proper operation and

condensate drainage.

8. Mounting unit:

The type of mounting device is a matter of choice, how-

ever, the mounting point shall always be that provided in

the chassis or cabinet.

a. Use rods and fasteners to suspend the unit at the

factory-provided mounting holes with rubber

grommets on the top of the unit on 42VA, VB, VF

units. Reach into unit and attach unit to the wall

using the 0.375-in. mounting holes (4) in top

panel; do not use any other locations. The four

mounting holes and hanger slots with rubber

grommets are NOT for balancing unit.

b. On 42VG unit ensure unit is placed snug within

the wall.

c. On 42VC, VE unit ensure unit is placed flush

against the wall.

NOTE: For any unit without a return-air duct connection,

applicable installation codes may limit unit to installation in

single-story residence only.

12"

30" Minimum

per building code

SIDE VIEW

FRONT VIEW

½"

Minimum

½"

Minimum

Level Unit

±¼"

Fig. 39 — Clearance Recommendations

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 87 88

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