Carrier 50TC Manuel d'instructions télécharger pdf (Page 12)

A-B

0.5” (13)

B-C

1.0” (25)

A-C

1.0” (25)

MAXIMUM ALLOWABLE

DIFFERENCE IN. (MM)

C06110

Fig. 7 -- Unit Leveling Tolerances

Step 5 — Field Fabricate Ductwork

PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in damage

to roofing materials.

Membrane roofs can be cut by sharp sheet metal

edges. Be careful when placing any sheet metal parts

on such roof.

CAUTION

Cabinet return-air static pressure (a negative condition) shall

not exceed 87 Pa (0.35 in. wg) with economizer or 112 Pa

(0.45 in. wg) without economizer.

For vertical ducted applications, secure all ducts to roof curb

and building structure. Do not connect ductwork to unit.

Insulate and weatherproof all external ductwork, joints, and

roof openings with counter flashing and mastic in

accordance with applicable codes.

Ducts passing through unconditioned spaces must be

insulated and covered with a vapor barrier.

If a plenum return is used on a vertical unit, the return

should be ducted through the roof deck to comply with

applicable fire codes.

For units with accessory electric heaters: Horizontal

applications require a minimum clearance to combustible

surfaces of 25 mm (1--in) from duct for first 305 mm (12--in)

away from unit. Vertical applications do not require a

minimum clearance.

Minimum clearance is not required around ductwork.

Outlet grilles must not lie directly below unit discharge.

NOTE: A 90--degree elbow must be provided in the

ductwork to comply with UL (Underwriters Laboratories)

code for use with electric heat.

PERSONAL INJURY HAZARD

Failure to follow this warning could cause personal

injury.

For vertical supply and return units, tools or parts

could drop into ductwork and cause an injury. Install

a 90--degree turn in the return ductwork between the

unit and the conditioned space. If a 90--degree elbow

cannot be installed, then a grille of sufficient strength

and density should be installed to prevent objects

from falling into the conditioned space. Due to

electric heater, supply duct will require 90--degree

elbow.

WARNING

DETAIL “A”

PLACE ALL SEAL STRIP IN PLACE

BEFORE PLACING UNIT ON ROOF CURB.

DUCT END

SEE DETAIL “A”

“C”

“B”

“A”

914-1371

(36"-54")

SPREADER

BARS

REQUIRED

C10410

UNIT

MAX WEIGHT

DIMENSIONS

A B C

KG LB MM IN MM IN MM IN

50TC-A07 473 1040 1890 74.5 965 38.0 1050 41.5

50TC-D08 641 1410 2235 88.0 1040 41.0 1055 41.5

50TC-D09 693 1525 2235 88.0 1030 40.5 1255 49.5

50TC-D12 711 1565 2235 88.0 1015 40.0 1255 49.5

50TC-D14 782 1720 2235 88.0 725 28.5 1345 53.0

NOTES:

1. SPREADER BARS REQUIRED to lift and transport the unit. Top damage will occur if spreader bars are not used.

2. Dimensions in ( ) are in inches.

3. Hook rigging shackles through holes in base rail, as shown in detail “A.” Holes in base rails are centered

around the unit center of gravity. Use wooden top to prevent rigging straps from damaging unit.

Fig. 8 -- Rigging Details

50TC

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 39 40

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Carrier 50TC Manuel d'instructions Page 12

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