Bryant 558D installation instructions Important Ð Read Before Installing, Contents, Installation

installation, start-up and	558D
service instructions
	Sizes 036-072
SINGLE PACKAGE ROOFTOP	3 to 6 Tons
ELECTRIC HEATING/ELECTRIC COOLING UNITS

IMPORTANT Ð READ BEFORE INSTALLING

1.Read and become familiar with these installation in- structions before installing this unit (see Fig. 1).

2.Be sure the installation conforms to all applicable local and national codes.

3.These instructions contain important information for the proper maintenance and repair of this equipment. Re- tain these instructions for future use.

CONTENTS

Page

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

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16 I. Locate the Unit . . . . . . . . . . . . . . . . . . . . . . . 3 II. Unit Duct Connections . . . . . . . . . . . . . . . . . . 3 III. Rig and Place Unit . . . . . . . . . . . . . . . . . . . . . 3 IV. Field Connections . . . . . . . . . . . . . . . . . . . . . 6

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-28 I. Heating Section Start-Up and Adjustments . . . . 17 II. Cooling Section Start-Up and Adjustments . . . . 18 III. Indoor Air¯ow and Air¯ow Adjustments . . . . . . 19

CARE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . 28 I. Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-31

I. Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

II. Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . 29

III. Condenser Fan Adjustment . . . . . . . . . . . . . . . 29

IV. Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . 30

V. Replacement Parts . . . . . . . . . . . . . . . . . . . . . 30

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . 32-35

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

SAFETY CONSIDERATIONS

Recognize safety information. This is the safety-alert sym- bol ( ). When you see this symbol on the unit and in in- structions or manuals, be alert to the potential for personal injury.

Understand the signal words Ð DANGER, WARNING, and CAUTION. These words are used with the safety-alert sym- bol. Danger identi®es the most serious hazards which will result in severe personal injury or death. Warning indicates a condition that could result in personal injury. Caution is used to identify unsafe practices which would result in minor personal injury or product and property damage.

Cancels: II 558D-36-4	II 558D-36-5
	2/1/99

WARNING: Before performing service or mainte- nance operations on unit, turn off main power switch to unit. Electrical shock could cause personal injury.

1.The power supply (volts, phase, and hertz) must corre- spond to that speci®ed on unit rating plate.

2.The electrical supply provided by the utility must be suf- ®cient to handle load imposed by this unit.

3.Refer to Locate the Unit section on page 3 and Fig. 2 for locations of electrical inlets, condensate drain, duct con- nections and required clearances before setting unit in place.

4.This installation must conform with local building codes and with NEC (National Electrical Code) or NFPA (National Fire Protection Association) 54 TIA-54-84-1. Refer to Provincial and local plumbing or wastewater codes and other applicable local codes.

5.Approved for outdoor installation on wood ¯ooring or on class A, B, or C roof covering materials.

INSTALLATION

Unit is shipped in the vertical air¯ow con®guration (see Fig. 1). To convert to horizontal discharge, remove horizontal duct opening covers. Using the same screws, install covers with insulation-side down (facing outside) over vertical duct openings on the unit. Seals around duct openings must be tight.

All units can be connected into existing duct systems that are properly sized and designed to handle an air¯ow of 300 to 500 cfm per each 12,000 Btuh of rated cooling capacity.

NOTE: When installing any accessory item, see the manu- facturer's installation instructions packaged with the acces- sory. A quali®ed installer or agency must use only factory- authorized kits or accessories when modifying this unit.

Fig. 1 Ð Typical Unit