Specification Guide

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6 | INTRODUCTION

Ceiling-Concealed Ducted System Engineering Manual

Convergence of Technological Innovation with Flexibility and Style

ARCHITECTURAL APPEAL

Single-Zone Ceiling-Concealed

Ducted Systems

A ceiling-concealed ducted system provides a system designer an

edge to engineer a system with individual control, and design flex-

ibility with advanced controls. Ceiling-concealed ducted systems are

208-230V/60Hz/1PH systems available in nominal capacities of 3/4,

1, 2, and 3 tons, and are best suited for applications with zones that

require heating or cooling, such as residential, and small business

office buildings.

Benefits of Ceiling-Concealed Ducted Systems

• Inverter technology

• Low static available in 9,000 and 12,000 Btu/h; High static

available in 24,000, and 36,000 Btu/h capacities

• All-season use—heat pump models for both cooling and heat-

ing capabilities

• Operating ranges for 9,000 and 12,000 Btu/h low static outdoor

units of 0°F to +118°F (DB) for cooling (Cooling range can be

extended from 0°F down to -4°F using the Low Ambient Wind

Baffle Kit [sold separately]); -4°F to +64°F (WB) for heating

• Operating ranges for 9,000 and 12,000 Btu/h low static indoor

units of 57°F to 77°F (WB) for cooling; 59°F to 81°F (DB) for

heating

• Indoor unit temperature for 9,000 and 12,000 Btu/h of 65°F to

86°F (DB) for cooling; 61°F to 86°F (WB) for heating

• Operating ranges for 24,000 and 36,000 Btu/h high static

outdoor units of 5°F to +118°F (DB) for cooling; 0°F to +64°F

(WB) for heating

• Operating ranges for 24,000 and 36,000 Btu/h high static

indoor units of 57°F to 77°F (WB) for cooling; 59°F to 81°F

(DB) for heating

• Indoor unit temperature setting range for 24,000 and 36,000

Btu/h) of 65°F to 86°F (DB) for cooling; 61°F to 86°F (WB) for

heating

• Quiet operation inside and outside

Inverter Technology

Inverter variable-speed compressors are measurably quieter and

consume less energy than those in conventional air conditioners.

The Inverter compressor ramps up or down to match the required

room capacity and maintain the comfort level. When the

selected temperature is reached, the inverter compressor oper-

ates at low speed to maintain that comfort level, thereby using less

energy.

Adaptable and Flexible

Ceiling-concealed ducted systems allow cooling or heating for a

single room without the need for extensive remodeling. Long refrig-

erant piping lengths allow for extra design flexibility in indoor unit

installation. These units may be used for a number of residential or

commercial environments such as:

• Older homes

• New home construction

• Office buildings

• Restaurants

• Hospitals / Medical facilities

• Schools

• Nursing homes

• Retail establishments

• Houses of worship

Figure 1: Ceiling Concealed High Static Ducted System.