Carrier 52VQR09 User Manual

© Carrier Corporation 2013 Form 52V-3PD
a52-1337
The 52V Series vertical packaged
units offer the following advantages:
• Completely pre-charged with Puron
environmentally sound refrigerant
(R-410A)
• Easy access for in-place service of
most components
• Multi-function microprocessor board
• Completely insulated cabinet for
sound attenuation and weather
infiltration
• Adjustable fresh air damper
• Tool-less filter replacement
• Weight-supporting, single piece wall
sleeves (except side access
sleeves) for various wall
thicknesses from 5 to 20-in.
• Primary condensate drain
connection on sleeves with
secondary overflow to building
exterior
• All sleeves are shipped with a
weather guard
• Flush type exterior architectural
louvers
Features/Benefits
Carrier’s 52V vertical
packaged unit offers design
flexibility, quality, reliabilty,
and multi-function controls
Solid-state circuit board
The circuit board incorporates the fol-
lowing control features:
Evaporator coil low temperature
protection protects the unit. During
the cooling mode, should the evapora-
tor coil experience either a low tem-
perature condition that could result in
ice build-up on the coil or a reduced
airflow situation, a temperature sensor
attached to the coil will deenergize the
unit. The sensor will reenergize the
unit when the coil warms up.
52VCR,VER,VQR,VWR09-24
Vertical Packaged
Terminal Air Conditioners
Cooling Only, Electric Heat,
Heat Pump, or Hot Water Heat Units
with PURON
®
Refrigerant (R-410A)
9,000 to 24,000 Nominal Btuh
Product
Data

Carrier 52VQR09 Specifications

General

Brand	Carrier
Model	52VQR09
Category	Air Conditioner
Language	English

Summary

Features and Benefits of Carrier 52V Series Units

Solid-State Circuit Board Features

Details the microprocessor board and its control features, including evaporator coil low temperature protection.

Service and Maintenance Convenience

Simplified Installation Process

Capacity Ratings Overview

Performance Data Tables

Electrical Data for 52VCR/VER Units

Electrical Data for 52VQR Units

Electrical Data for 52VWR Units

Typical Wiring Schematic

Unit Controls and Sequence of Operation

Start-up Sequence and Time Delays

Explains the start-up sequence, including random and concurrent time delays for compressor and fan.

Cooling Mode Operation

Describes compressor, fan, and sensor operations during cooling mode, including lockout conditions.

Heating Modes Operation

Details operation for electric, hot water, and heat pump heating modes, including auxiliary heat.

Thermostat Specifications and Settings

Control Logic and Time Delays

Cooling and Heating Control Logic

Explains how compressor and fan operate based on temperature set points and deadbands.

Reversing Valve Operation (Heat Pump)

Minimum Time Delays Summary

Typical Installation Procedure

Application Data and Considerations

Advantages for New Construction

Operating Cost and Occupant Comfort

Sizing Recommendations

Emphasizes proper sizing and professional engineer consultation for desired temperature and humidity levels.

Impact of Undersizing and Oversizing

Explains how undersizing leads to inadequate cooling, and oversizing causes high humidity.

Air Infiltration Effects

Ventilation System Description

Guide Specifications

System Description and Quality Assurance

Outlines system description, UL certification, and AHRI Standard 390 compliance for the units.

Cabinet Construction and Insulation

Refrigeration System Components

Details the cooling coil, compressor type, accumulator (heat pump), and condenser fan.

Air System and Heating Coil Specifications

Describes evaporator fans, electric heating coils (2-10 kW), and hot water heating coils.

Condensate Drain and Wall Sleeve Design

Grille and Control Module Specifications

Safety Features and Time Delays

Details low ambient lockout, random restart, compressor restart delay, and fan delay features.