Carrier bryant 577C-C Installation Instructions Manual Download

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Recognize safety information. This is the safety--alert symbol

When you see this symbol on the unit and in instructions or manu-
als, be alert to the potential for personal injury. Understand these

signal words: DANGER, WARNING, and CAUTION. These
words are used with the safety--alert symbol. DANGER identifies

the most serious hazards which

will

result in severe personal injury

or death. WARNING signifies hazards which

could

result in per-

sonal injury or death. CAUTION is used to identify unsafe practic-

es which

may

result in minor personal injury or product and prop-

erty damage. NOTE is used to highlight suggestions which

will

result in enhanced installation, reliability, or operation.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury or death.
Before installing or servicing system, always turn off main

power to system and install lockout tag. There may be

more than one disconnect switch. Turn off accessory heater

power switch if applicable.

WARNING

FIRE, EXPLOSION, ELECTRICAL SHOCK AND

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal

injury or unit damage.
A qualified installer or agency must use only

factory--authorized kits or accessories when modifying this

product.

WARNING

INTRODUCTION

This unit (see Fig. 1) is a fully self--contained, combination
Category I gas heating/electric cooling unit designed for outdoor

installation (See Fig. 3 and 4 for unit dimensions). All unit sizes

have return and discharge openings for both horizontal and
downflow configurations, and are factory shipped with all

downflow duct openings covered. Units may be installed either on
a rooftop or on a cement slab. (See Fig. 5 for roof curb

dimensions).
In gas heating mode, this unit is designed for a minimum

continuous return--air temperature of 55

F (13

C) db and a

maximum continuous return--air temperature of 80

F (27

C) db.

Failure to follow these return--air temperature limits may affect

reliability of heat exchangers, motors, and other components.
Models with an N in the 13th position of the model number are

dedicated Low NOx units designed for California installations.

These models meet the California maximum oxides of nitrogen
(NOx) emissions requirements of 40 nanograms/joule or less as

shipped from the factory and must be installed in California Air
Quality Management Districts or any other regions in North

America where a Low NOx rule exists.

NOTE

Low NOx requirements apply only to natural gas

installations.

RECEIVING AND INSTALLATION

Step 1 — Check Equipment

Identify Unit

The unit model number and serial number are stamped on the unit
information plate. Check this information against shipping papers.

Inspect Shipment

Inspect for shipping damage before removing packaging materials.

If unit appears to be damaged or is torn loose from its anchorage,
have it examined by transportation inspectors before removal.

Forward claim papers directly to transportation company.

Manufacturer is not responsible for any damage incurred in transit.
Check all items against shipping list. Immediately notify the

nearest equipment distribution office if any item is missing. To
prevent loss or damage, leave all parts in original packages until

installation.
If the unit is to be mounted on a curb in a downflow application,

review Step 9 to determine which method is to be used to remove
the downflow panels before rigging and lifting into place. The

panel removal process may require the unit to be on the ground.

Step 2 — Provide Unit Support

For hurricane tie downs, contact distributor for details and PE
(Professional Engineering) Certificate if required.

Roof Curb

Install accessory roof curb in accordance with instructions shipped

with curb (See Fig. 5). Install insulation, cant strips, roofing, and
flashing. Ductwork must be attached to curb.

IMPORTANT

: The gasketing of the unit to the roof curb is

critical for a water tight seal. Install gasketing material supplied
with the roof curb. Improperly applied gasketing also can result in
air leaks and poor unit performance.
Curb should be level to within 1/4 in. (6 mm). This is necessary

for unit drain to function properly. Refer to accessory roof curb

installation instructions for additional information as required.

Installation on older “G” series roof curbs.

Two accessory kits are available to aid in installing a new “G”

series unit on an old “G” roof curb.

1. Accessory kit number CPADCURB001A00, (small chassis)

and accessory kit number CPADCURB002A00, (large
chassis) includes roof curb adapter and gaskets for the
perimeter seal and duct openings. No additional

modifications to the curb are required when using this kit.

2. An alternative to the adapter curb is to modify the existing

curb by removing the outer horizontal flange and use
accessory kit number CPGSKTKIT001A00 which includes
spacer blocks (for easy alignment to existing curb) and

gaskets for the perimeter seal and duct openings. This kit is
used when existing curb is modified by removing outer

horizontal flange.

UNITS/STRUCTURAL DAMAGE HAZARD

Failure to follow this caution may result in property

damage.
Ensure there is sufficient clearance for saw blade when

cutting the outer horizontal flange of the roof curb so there

is no damage to the roof or flashing.

WARNING

Slab Mount

Place the unit on a solid, level pad that is at least 2 in. (51 mm)

above grade. The pad should extend approximately 2 in. (51 mm)

beyond the casing on all 4 sides of the unit. (See Fig. 2.) Do not
secure the unit to the pad