Carrier 50TC Manuel d'instructions télécharger pdf (Page 9)

Table 1 – Operating Weights

50TC--- UNITS KG (LB)

Component A07 D08 D09 D12 D14

Base Unit 277 (610) 340.5 (750) 388.2 (855) 392.7 (865) 467 (1030)

Economizer

Vertical 23 (50) 36 (80) 36 (80) 36 (80) 36 (80)

Horizontal 36 (80) 48 (105) 48 (105) 48 (105) 48 (105)

Curb

356 mm/14--- in 50 (110) 60 (133) 60 (133) 60 (133) 60 (133)

610 mm/24--- in 66 (145) 79 (174) 79 (174) 79 (174) 79 (174)

Step 2 — Plan for Sequence of Unit Installation

The support method used for this unit will dictate different

sequences for the steps of unit installation. For example,

on curb--mounted units, some accessories must be

installed on the unit before the unit is placed on the curb.

Review the following for recommended sequences for

installation steps.

Curb--mounted installation —

Install curb

Install field--fabricated ductwork inside curb

Install accessory thru--base service connection package

(affects curb and unit) (refer to accessory installation

instructions for details)

Prepare bottom condensate drain connection to suit

planned condensate line routing (refer to Step 9 for

details)

Rig and place unit

Install outdoor air hood

Install condensate line trap and piping

Make electrical connections

Install other accessories

Pad--mounted installation —

Prepare pad and unit supports

Check and tighten the bottom condensate drain

connection plug

Rig and place unit

Convert unit to side duct connection arrangement

Install field--fabricated ductwork at unit duct openings

Install outdoor air hood

Install condensate line trap and piping

Make electrical connections

Install other accessories

Frame--mounted installation —

Frame--mounted applications generally follow the

sequence for a curb installation. Adapt as required to

suit specific installation plan.

Step 3 — Inspect unit

Inspect unit for transportation damage. File any claim

with transportation agency.

Confirm before installation of unit that voltage, amperage

and circuit protection requirements listed on unit data

plate agree with power supply provided.

Step 4 — Provide Unit Support

Roof Curb Mount —

Accessory roof curb details and dimensions are shown in

Fig. 5 (size 07 units) and Fig. 6 (size 08 – 14 units).

Assemble and install accessory roof curb in accordance

with instructions shipped with the curb.

NOTE: The gasketing of the unit to the roof curb is

critical for a watertight seal. Install gasket supplied with

the roof curb as shown in Fig. 5 and Fig. 6. Improperly

applied gasket can also result in air leaks and poor unit

performance.

Curb should be level. This is necessary for unit drain to

function properly. Unit leveling tolerances are show in

Fig. 7. Refer to Accessory Roof Curb Installation

Instructions for additional information as required.

Install insulation, cant strips, roofing felt, and counter

flashing as shown. Ductwork must be attached to curb and

not to the unit. The accessory thru--the--base power

package must be installed before the unit is set on the roof

curb.

If electric and control wiring is to be routed through the

basepan, attach the accessory thru--the--base service

connections to the basepan in accordance with the

accessory installation instructions.

Slab Mount (Horizontal Units Only) —

Provide a level concrete slab that extends a minimum of

150 mm (6 in.) beyond unit cabinet. Install a gravel apron

in front of condenser coil air inlet to prevent grass and

foliage from obstructing airflow.

NOTE: Horizontal units may be installed on a roof curb

if required.

Alternate Unit Support (In Lieu of Curb or Slab

Mount) —

A non--combustible sleeper rail can be used in the unit

curb support area. If sleeper rails cannot be used, support

the long sides of the unit with a minimum of 3 equally

spaced 102 mm x 102 mm (4--in. x 4--in.) pads on each

side.

50TC

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Carrier 50TC Manuel d'instructions Page 9

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