Bryant 604D--A Vertical Economizer Factory Installed Option General, Accessories, Installation

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604D-- -- A

VERTICAL ECONOMIZER

(FACTORY INSTALLED OPTION)

GENERAL

Economizers are recommended for only commercial packaged products that have X13 motors. The Economizer system utilizes the latest technology available for integrating the use of free cooling with mechanical cooling for rooftop units. The solid state control system optimizes energy consumption, zone comfort, and equipment cycling by operating the compressors when the outdoor air temperature is too warm, integrating the compressor with outdoor air when free cooling is available, and locking out the compressor when outdoor air temperature is too cold. Demand ventilation is supported.

The Economizer system utilizes gear-drive technology with a direct-mount spring return actuator that will close upon loss of power. The Economizer system comes standard with an outdoor air temperature sensor, a supply air temperature sensor, and low temperature compressor lockout switch. Indoor enthalpy, outdoor enthalpy, and CO2 sensors are available for field installation.

Barometric relief dampers provide natural building pressurization control. Barometric relief dampers are built into the design and are standard. See Table 10 for Hood Package contents. See Table 11 for sensor usage.

Table 10 – Package Contents

 

SMALL CHASSIS

 

LARGE CHASSIS

 

(Sizes 30 and 36)

 

(Sizes 42, 48, and 60)

 

 

 

 

Qty

Content Description

Qty

Content Description

 

 

 

 

1

Hood Side, Right

1

Hood Side, Right

 

 

 

 

1

Hood Side, Left

1

Hood Side, Left

 

 

 

 

2

Angle, Filter

2

Angle, Filter

 

 

 

 

1

Aluminum Filter

1

Aluminum Filter

(20---1/2” x 16---1/2 x 1”)

(20---1/2” x 16---1/2 x 1”)

 

(521 x 419 x 25 mm)

 

(521 x 419 x 25 mm)

 

 

 

 

18

Screws

18

Screws

(#10 --- 14 x 5/8” w/Seal

(#10 --- 14 x 5/8” w/Seal

 

Washer)

 

Washer)

 

 

 

 

2

Screws

2

Screws

(#8 --- 18 x 3/4” Type B Pan

(#8 --- 18 x 3/4” Type B Pan

 

Head)

 

Head)

 

 

 

 

 

 

1

Bracket, Sensor

 

 

 

 

Table 11 – Economizer Sensor Usage

 

ECONOMIZER WITH OUTDOOR AIR DRY BULB

APPLICATION

 

SENSOR

 

 

 

 

 

Accessories Required

 

 

 

 

Outdoor Air Dry Bulb

None, The outdoor air dry bulb sensor is factory

 

installed.

 

 

 

 

 

 

Single Enthalpy

HH57AC078

 

 

 

 

Differential Enthalpy

HH57AC078 and CRENTDIF004A00*

 

 

 

 

 

CO2 for DCV Control

 

 

 

 

Using a Wall---Mounted

33ZCSENC02 or CGCDXSEN004A00

CO2 Sensor

 

 

 

 

CO2 for DCV Control

33ZCSENC02 or

 

 

 

CGCDXSEN004A00{

 

or

CRCBDIOX005A00{ {

Using a Duct---

and 33ZCASPCO2 or

 

Mounted CO2 Sensor

 

 

 

CGCDXASP00100**

 

 

 

*CRENTDIF004A00 accessory is used on many different base units. As such, these kits may contain parts that will not be needed for installation.

{33ZCSENCO2 and CGCDXSEN004A00 are accessory CO2 sensors. **33ZCASPC02 AND CGCDXASP00100 are accessory aspirator boxes required for duct---mounted applications.

{{CRCBDIOX005A00 is an accessory that contains both 33ZCSENCO2 AND 33ZVASPC02 accessories.

ACCESSORIES

The economizer has several field-installed accessories available to optimize performance. Refer to Table 12 for authorized parts.

Table 12 – Accessory List

DESCRIPTION

PART NUMBER

 

 

Outdoor Air Enthalpy Sensor

HH57AC078

 

 

Indoor Air Enthalpy Sensor

CRENTDIF004A00

 

 

Return Air CO2 Sensor (4---20 mA)

CRCBDIOX005A00

CO2 Room Sensor (4---20 mA)

33ZCSENX02 Or

CGCDXSEN004A00

 

 

Aspirator Box for duct Mount CO2 Sensor

33ZCASPC02 Or

(4---20 mA)

CGCDXASP001A00

Space Temperature and CO2 Room

33ZCT55C02

Sensor with Override (4---20mA)

 

Space Temperature and CO2 Room

33ZCT56C02

Sensor with Override and Set Point

(4---20mA)

 

 

 

Heat Pump Relay Package

CPRLYKIT001A00

 

 

INSTALLATION

Small Chassis

To install the Vertical Economizer on the small chassis perform the following procedure:

1. Turn off unit power supply and install lockout tag.

!WARNING

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.

2.Remove economizer hood top panel from the return side of the unit. See Fig. 22. Keep screws and panel next to the unit.

3.Open economizer hood package found on the top skid.

4.Remove red shipping tape that attaches the outside air temperature (OAT) sensor to the economizer assembly. Using two #8 fasteners, found in the hood package, attach the OAT sensor to the economizer according to Fig. 23.

NOTE: See label attached to economizer for OAT installing details.

5.Remove horizontal return duct cover panel and cut the wire ties that hold the hood divider to the economizer assembly. Slide hood divider off from the two slots holding it in place and place next to the unit. See Fig. 24.

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Contents Table of Contents Safety ConsiderationsReceiving and Installation IntroductionCheck Equipment Provide Unit SupportProperty Damage Hazard Rig and Place UnitUnit Falling Hazard 604D--A24-36 Unit Dimensions 604D--A42-60 Unit Dimensions Size CPRFCURB010A00CPRFCURB012A00 CPRFCURB013A00Rigging/Lifting of Unit See Fig Select and Install DuctworkCorner Weights Small Cabinet Corner Weights Large Cabinet Supply and Return Duct Openings Personal Injury and Electrical Operation HazardInstall Electrical Connections Provide for Condensate DisposalHigh-Voltage Connections Unit Component Damage HazardSpecial Procedures for 208-V Operation Accessory Electric Heaters InstallationControl Voltage Connections Standard ConnectionsPhysical Data Unit 604D--A Minimum Airflow for Reliable Electric Heater Operation CFM604D a Cont. Ladder Wiring Schematics 208/230-1-60 Connection Wiring Schematics 208/230-3-60 Cont. Ladder Wiring Schematics 208/230-3-60 Connection Wiring Diagram Cont. Ladder Wiring Diagram Start-Up Adjustments START-UPCheck for Refrigerant Leaks Checking Cooling and Heating Control OperationChecking and Adjusting Refrigerant Charge Indoor Airflow and Airflow Adjustments604D--A Sequence of Operation Unit Operation HazardTwo Cooling Fan Speeds Set-up Dehumidification feature used Single Speed Cooling With Higher Electric Heat SpeedContinuous Fan Operation Color Coding for Indoor Fan Motor LeadsTypical Heat Pump Operation, Cooling Mode Air Filter MaintenanceDefrost Control Outdoor Coil, Indoor Coil, and Condensate Drain Pan Outdoor FanFilter Pressure Drop Table IN. W.C A24-60 Series a604D--A Wet Coil Pressure Drop IN. W.C Cooling Charging Table-Subcooling Electrical Controls and Wiring Refrigerant CircuitPressure Switches Loss of Charge SwitchHigh-Pressure Switch Copeland Scroll Compressor Puron RefrigerantSystem Information TroubleshootingSTART-UP Checklist Puronr R-410A Quick Reference Guide Troubleshooting Chart Symptom Cause RemedyTemperatures Remove and Store in Job FilesPreliminary Information Model no III. START-UP Electrical Supply Voltage Compressor AmpsVertical Economizer Factory Installed Option General AccessoriesInstallation Small ChassisFilter Part Number Part NumberHood Divider Removed Economizer Hood Assembly Large Chassis Horizontal Return Duct Cover Panel and Hood Divider RemovalLeft Hood Side Hood Assembly Configuration Supply AIR Temperature SAT SENSOR-The supplyTemperature Economizer Standard Sensors11.7C 12.8C 14.4C 17.2C 20C 22.8C 25.6C Economizer Controller 604D-- -- a Economizer Wiring Diagram A10200 Cont. Ladder Wiring Diagram A10199 604D-- -- a 604D-- -- a Operation CO2 Sensor Standard SettingsCO2 Sensor Standard Settings Economizer Input/Output Logic Troubleshooting 604D--A 30-36 3 Phase with Economizer 604D--A 42-60 3 Phase with Economizer

604D--A specifications

The Bryant 604D--A is a remarkable heating and cooling unit designed for both efficiency and performance, making it an ideal choice for homeowners seeking optimal climate control solutions. Its impressive array of features, technologies, and characteristics sets it apart in the HVAC market.

One of the standout features of the Bryant 604D--A is its advanced two-stage cooling system. This design allows the unit to adjust its cooling output based on the current temperature and humidity levels, which ensures a comfortable indoor environment while optimizing energy consumption. This two-stage operation is particularly beneficial during transitional seasons when temperatures fluctuate, providing a quieter operation and increased efficiency.

The Bryant 604D--A incorporates high-efficiency compressor technology that maximizes cooling capability while minimizing energy usage. This energy-efficient operation is further enhanced by its excellent SEER (Seasonal Energy Efficiency Ratio) rating. By achieving a high SEER rating, the 604D--A not only promotes energy savings but also contributes to lower utility bills, making it an economically sound investment for homeowners.

Another key characteristic of the Bryant 604D--A is its durable construction. Built with quality materials, this unit is designed to withstand varying weather conditions, ensuring longevity and reliable performance over the years. Its robust design also minimizes vibrations and noise, making it a quieter option compared to many competing systems.

Smart technology integration is also a significant highlight of the Bryant 604D--A. It features wireless connectivity, allowing users to control their heating and cooling settings remotely through a smartphone app. This modern convenience enables homeowners to adjust their indoor climate on-the-go, enhancing user comfort and convenience.

Additionally, the Bryant 604D--A is equipped with an advanced filtration system that helps to improve indoor air quality. By capturing dust, pollen, and other particles, this filtration system ensures that the air circulating within the home remains clean and healthy.

In conclusion, the Bryant 604D--A is a high-performance HVAC unit that excels in energy efficiency, durability, and convenience. With its advanced technology, quiet operation, and user-friendly features, it stands as a premier choice for those looking to elevate their home comfort while maintaining cost-effectiveness and sustainability. Whether for new installations or as a replacement for an outdated system, the Bryant 604D--A is undoubtedly a leader in modern climate control solutions.
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