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Bryant 558F Installation, Start-up And Service Instructions Manual

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Cancels: New II 558F-180-1

6/15/02

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-20

I. Step 1 — Provide Unit Support. . . . . . . . . . . . . . . . . 1

II. Step 2 — Rig and Place Unit. . . . . . . . . . . . . . . . . . . 1

III. Step 3 — Field Fabricate Ductwork . . . . . . . . . . . . . 9

IV. Step 4 — Make Unit Duct Connections . . . . . . . . . . .9

V. Step 5 — Trap Condensate Drain . . . . . . . . . . . . . . . 9

VI. Step 6 — Make Electrical Connections. . . . . . . . . . . 10

VII. Step 7 — Make Outdoor-Air Inlet

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

VIII. Step 8 — Install Outdoor-Air Hood. . . . . . . . . . . . . 14

IX. Step 9 — Install All Accessories . . . . . . . . . . . . . . 17

X. Step 10 — Install Humidity Control

Accessory for Optional Perfect Humidity™

Dehumidification Package . . . . . . . . . . . . . . . . . . . 18

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-26

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26-32

TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . .33,34

INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . CL-1

SAFETY CONSIDERATIONS

Installation and servicing air-conditioning equipment can be

hazardous due to system pressure and electrical compo-

nents. Only trained and qualified service personnel should

install, repair, or service air-conditioning equipment.

Untrained personnel can perform basic maintenance func-

tions of cleaning coils and filters and replacing filters. All

other operations should be performed by trained service per-

sonnel. When working on air-conditioning equipment, observe

precautions in the literature, tags and labels attached to the

unit, and other safety precautions that may apply.

Follow all safety codes. Wear safety glasses and work gloves.

Use quenching cloth for unbrazing operations. Have fire

extinguishers available for all brazing operations.

IMPORTANT: Units have high ambient operating limits. If

limits are exceeded, the unit will automatically lock the com-

pressor out of operation. Manual reset will be required to

restart the compressor.

INSTALLATION

I. STEP 1 — PROVIDE UNIT SUPPORT

A. Roof Curb

Assemble and install accessory roof curb or horizontal

adapter roof curb in accordance with instructions shipped

with the curb or horizontal adapter. Accessory roof curb and

horizontal adapter roof curb and information required to

field fabricate a roof curb or horizontal adapter roof curb are

shown in Fig. 1A, 1B and 2. Install insulation, cant strips,

roofing, and counter flashing as shown. Ductwork can be

secured to roof curb before unit is set in place.

IMPORTANT: The gasketing of the unit to the roof curb or

adapter roof curb is critical for a leak-proof seal. Install

gasket supplied with the roof curb or adapter roof curb as

shown in Fig. 1A and 1B. Improperly applied gasket can

result in air leaks and poor unit performance.

Curb or adapter roof curb should be level. This is necessary

to permit unit drain to function properly. Unit leveling toler-

ance is ±

1

/

16

in. per linear ft in any direction. Refer to Acces-

sory Roof Curb or Horizontal Adapter Roof Curb Installation

Instructions for additional information as required.

B. Alternate Unit Support

When the curb or adapter cannot be used, support unit with

sleepers using unit curb or adapter support area. If sleepers

cannot be used, support long sides of unit with a minimum of

3 equally spaced 4-in. x 4-in. pads on each side.

II. STEP 2 — RIG AND PLACE UNIT

Inspect unit for transportation damage. File any claim with

transportation agency. Keep unit upright, and do not drop.

Use spreader bars over unit to prevent sling or cable dam-

age. Rollers may be used to move unit across a roof. Level by

using unit frame as a reference; leveling tolerance is ±

1

/

16

in.

per linear ft in any direction. See Fig. 3 for additional infor-

mation. Unit weight is shown in Table 1.

Four lifting holes are provided in ends of unit base rails as

shown in Fig. 3. Refer to rigging instructions on unit.

A. Positioning

Provide clearance around and above unit for airflow, safety,

and service access (Fig. 4-6).

Do not install unit in an indoor location. Do not locate air

inlets near exhaust vents or other sources of contaminated

air.

Although unit is weatherproof, guard against water from

higher level runoff and overhangs.

B. Roof Mount

Check building codes for weight distribution requirements.

WARNING: Before performing service or mainte-

nance operations on unit, turn off main power switch

to unit and install lockout tag on disconnect switch.

Electrical shock could cause personal injury.

installation, start-up and

service instructions

SINGLE PACKAGE ROOFTOP

ELECTRIC HEAT/ELECTRIC COOLING UNITS

558F

DuraPac Series

Sizes 180-300

15 to 25 Tons