Bryant Legacy 605C-B Installation Instruction

13.4 seer2 single-packaged heat pump system with puron advance (r-454b) refrigerant single phase 2-5 nominal tons (sizes 24-60) three phase 3-5 nominal tons (sizes 36-60)

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605C--B

Legacy™ 13.4 SEER2 Single-Packaged Heat Pump

System with Puron Advance™ (R-454B) Refrigerant

Single Phase 2-5 Nominal Tons (Sizes 24-60)

Three Phase 3-5 Nominal Tons (Sizes 36-60)

IMPORTANT: Effective January 1, 2023, all split system and packaged

air conditioners must be installed pursuant to applicable regional

efficiency standards issued by the Department of Energy.

NOTE: Read the entire instruction manual before starting the

installation.

NOTE: Installer: Make sure the Owner's Manual and Service

Instructions are left with the unit after installation.

Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Receiving and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Transport and Storage Considerations . . . . . . . . . . . . . . . . . . . . . . 2

Leak Dissipation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Pre-Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Start-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Sequence of Events - Dissipation Mode . . . . . . . . . . . . . . . . . . . 32

Start-Up Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Decommissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Fig. 1 - Unit 605C

Safety Considerations

This unit is equipped with electrically powered safety measures. For the

safety measures to be effective, the unit must be electrically powered at

all times after installation, other than when servicing.

WARNING

PERSONAL INJURY AND PROPERTY DAMAGE

HAZARD

Continuous fan mode required for proper functioning. Installation must

meet the Required Minimum Dissipation Airflow as outlined in the

Leak Dissipation System section. Follow instructions in the Continuous

Fan Speed Set-Up section to change speeds.

Installation Instruction

A09033

Installation and servicing of this equipment can be hazardous due to

mechanical and electrical components. Only trained and qualified

personnel should install, repair, or service this equipment.

Untrained personnel can perform basic maintenance functions such as

cleaning and replacing air filters. All other operations must be performed

by trained service personnel. When working on this equipment, observe

precautions in the literature, on tags, and on labels attached to or shipped

with the unit and other safety precautions that may apply.

WARNING

PERSONAL INJURY AND PROPERTY DAMAGE

HAZARD

For continued performance, reliability, and safety, the only approved

accessories and replacement parts are those specified by the equipment

manufacturer. The use of non-manufacturer approved parts and

accessories could invalidate the equipment limited warranty and result

in fire risk, equipment malfunction, and failure. Please review

manufacturer's instructions and replacement part catalogs available

from your equipment supplier.

Auxiliary devices which may be a POTENTIAL IGNITION SOURCE

shall not be installed in the duct work. Examples of such POTENTIAL

IGNITION SOURCES are hot surfaces with a temperature exceeding

1292°F (700°C) and electric switching devices.

Electrostatic air purifiers installed in the ductwork are permitted, if the

purifier has an airflow sensor.

False ceilings or drop ceilings must not be used as a return air

duct/plenum.

This self-contained unit is already charged with refrigerant for optimum

performance, and shouldn't require any adjustments. Should any

installation/service work on the A2L refrigerant system be needed,

non-sparking tools are required. If the refrigerant system is opened, a

refrigerant detector should be used to check for leaks. Open flames or

other ignition sources should not be present, except during brazing.

Brazing should only take place on refrigerant tubes that are open to the

atmosphere or have been properly evacuated.

Follow all safety codes. Wear safety glasses, protective clothing, and

work gloves. Use quenching cloth for brazing operations. Have a fire

extinguisher available. Read these instructions thoroughly and follow all

warnings or cautions included in literature and attached to the unit.

Consult local building codes, the current editions of the National

Electrical Code (NEC) NFPA 70.

In Canada refer to the current editions of the Canadian Electrical Code

CSA C22.1.

Recognize safety information. This is the safety-alert symbol

you see this symbol on the unit and in instructions or manuals, be alert to

the potential for personal injury. Understand these signal words:

DANGER, WARNING, and CAUTION. These words are used with the

safety-alert symbol. DANGER identifies the most serious hazards which

will result in severe personal injury or death. WARNING signifies

. When

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Summary of Contents for Bryant Legacy 605C-B

Page 1: Table Of Contents
605C--B Legacy™ 13.4 SEER2 Single-Packaged Heat Pump System with Puron Advance™ (R-454B) Refrigerant Single Phase 2-5 Nominal Tons (Sizes 24-60) Three Phase 3-5 Nominal Tons (Sizes 36-60) Installation Instruction IMPORTANT: Effective January 1, 2023, all split system and packaged Installation and servicing of this equipment can be hazardous due to air conditioners must be installed pursuant to applicable regional mechanical and electrical components.
Page 2: Electrical Shock Hazard
Step 1 – Check Equipment hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal Identify Unit injury or product and property damage. NOTE is used to highlight The unit model number and serial number are stamped on the unit suggestions which will result in enhanced installation, reliability, or identification plate.
Page 3 605C--B: Installation Instruction coil. Do not locate the unit in either a corner or under an overhead obstruction. The minimum clearance under a partial overhang (such as a normal house overhang) is 48 in. (1219 mm) above the unit top. The maximum horizontal extension of a partial overhang must not exceed 48 in.
Page 4 605C--B: Installation Instruction A240006 Fig. 2 – 24-30 Unit Dimensions Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 5 605C--B: Installation Instruction A240007 Fig. 3 – 36-60 Unit Dimensions Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 6 605C--B: Installation Instruction A180216 Fig. 4 – Roof Curb Dimensions B (small/common UNIT CATALOG B (large base) base) SIZE NUMBER IN. (mm) IN. (mm) IN. (mm) IN. (mm) IN. (mm) IN. (mm) IN. (mm) IN. (mm) IN. (mm) Small or CPRFCURB011B00 14 (356) 10 (254) 32.4 (822)
Page 7 605C--B: Installation Instruction A09051 RIGGING WEIGHTS (SMALL CABINET) RIGGING WEIGHTS (LARGE CABINET) Unit Unit Rigging Weight Rigging Weight NOTE: See dimensional drawing for corner weight distribution. Fig. 5 – Rigging Weights Step 4 – Rig and Place Unit Inspection Prior to initial use, and at monthly intervals, all rigging shackles, clevis WARNING pins, and straps should be visually inspected for any damage, evidence of wear, structural deformation, or cracks.
Page 8: Rigging/Lifting Of Unit
605C--B: Installation Instruction Rigging/Lifting of Unit (See Fig. Configuring Units for Downflow (Vertical) Discharge Lifting holes are provided in base rails as shown. WARNING 1. Attach shackles, clevis pins, and straps to the base rails of the unit. Be sure materials are rated to hold the weight of the unit (See ELECTRICAL SHOCK HAZARD Fig.
Page 9 605C--B: Installation Instruction 3. Use flexible transition between rigid ductwork and unit to prevent If the installation requires draining the condensate water away from the transmission of vibration. The transition may be screwed or bolted unit, install a field-supplied 2 -in. (51mm) trap at the condensate to duct flanges.
Page 10: Leak Dissipation System
605C--B: Installation Instruction High-Voltage Connections Special Procedures for 208-V Operation The unit must have a separate electrical service with a field-supplied, WARNING waterproof disconnect switch mounted at, or within sight from the unit. Refer to the unit rating plate, NEC and local codes for maximum ELECTRICAL SHOCK HAZARD fuse/circuit breaker size and minimum circuit amps (ampacity) for wire sizing.
Page 11 605C--B: Installation Instruction Leak Dissipation Control Board (DSB) Test Button IMPORTANT: Press the Test Button for approximately ONE SECOND The leak dissipation control board (Fig. 11) is located in the control box. to enter Test Mode. Pressing the Test button for a longer period can There are 2 LED indicators, which are viewable after removing the possibly clear all fault code history (Table...
Page 12 605C--B: Installation Instruction In this case, 1006 CFM. Since 1006 CFM is greater than 266 CFM, the (1.) If indoor temperature is above temperature set point, continuous fan speeds are sufficient to deliver the required minimum thermostat closes circuits R to G, R to Y and R to O-The dissipation airflow.
Page 13 605C--B: Installation Instruction Table 4 – Minimum Airflow for Reliable Electric Heater Operation (CFM) SIZE AIRFLOW (CFM) 1025 1250 1400 1710 1800 A09098 Fig. 14 – Typical Installation Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 14 605C--B: Installation Instruction A240137 Fig. 15 – Connection Wiring Schematics 208/230-1-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 15 605C--B: Installation Instruction A240138 Fig. 16 – Ladder Wiring Schematics 208/230-1-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 16 605C--B: Installation Instruction A240139 Fig. 17 – Connection Wiring Schematics - 208/230-3-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 17 605C--B: Installation Instruction A240140 Fig. 18 – Ladder Wiring Schematics - 208/230-3-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 18 605C--B: Installation Instruction A240141 Fig. 19 – Connection Wiring Diagram 460-3-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 19 605C--B: Installation Instruction A240142 Fig. 20 – Ladder Wiring Diagram 460-3-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 20: Pre-Start-Up
605C--B: Installation Instruction Pre-Start-Up FAN mode is placed in FAN ON position and shuts down when FAN MODE switch is placed in AUTO position. WARNING (2.) Thermostat: When the room temperature rises to a point that is slightly above the cooling control setting of the thermostat, the FIRE, EXPLOSION, ELECTRICAL SHOCK AND thermostat completes the circuit between thermostat ENVIRONMENTAL HAZARD...
Page 21: Step 2 - Start-Up Adjustments
605C--B: Installation Instruction 6. Shut off power to unit. WARNING 7. Before beginning recovery of the refrigerant: a. Make sure that handling equipment is available, if needed, to EXPLOSION HAZARD handle the refrigerant recovery cylinders. b. All personal protective equipment is available, and must be used Failure to follow this warning could result in correctly.
Page 22 605C--B: Installation Instruction NOTE: If the problem causing the inaccurate readings is a refrigerant 1. Using Fig. 22, move the two pin DEHUM jumper from the “STD” leak, refer to Check for Refrigerant Leaks section. position to the “DEHUM” position. Indoor Airflow and Airflow Adjustments 2.
Page 23: Continuous Fan Operation
605C--B: Installation Instruction Continuous Fan Operation WARNING When the DEHUM feature is not used, the continuous fan speed will be the same as cooling fan speed. When the DEHUM feature is used, the PERSONAL INJURY AND PROPERTY DAMAGE continuous fan will operate on IFB “LOW” speed when the DH control HAZARD lead is not energized, or IFB “HIGH”...
Page 24 605C--B: Installation Instruction C03012 Fig. 23 – Typical Heat Pump Operation, Heating Mode Step 3 – Defrost Control Demand Defrost Mode The defrost mode is factory set to an initial 60-minute time interval. It may also be adjusted to an initial interval of 30, 90, or 120 minutes. During operation, the control optimizes current defrost time based on the previous defrost interval and previous defrost period.
Page 25 605C--B: Installation Instruction Table 6 – Dry Coil Air Delivery* - Horizontal and Downflow Discharge Sizes 24-60 ESP (in. W.C.) Unit Size Motor Speed Blue 0.09 0.07 0.06 Pink Med-Low 0.11 0.12 0.12 0.13 0.13 0.14 0.14 0.15 0.15 0.16 1065 1016 Medium...
Page 26 605C--B: Installation Instruction Table 7 – Filter Pressure Drop Table (IN. W.C.) Cooling Standard CFM (SCFM) Filter Size in. (mm) Tons 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 600-1400 CFM 2.0, 12x20x1+12x20x1 0.03 0.04 0.05 0.06 0.06 0.07 0.07 0.08 0.08 (305x508x25+305x508x25) 1200-1800CFM 3.0,...
Page 27: Maintenance
605C--B: Installation Instruction Maintenance Indoor Blower and Motor NOTE: All motors are pre-lubricated. Do not attempt to lubricate these To ensure continuing high performance, and to minimize the possibility motors. of premature equipment failure, periodic maintenance must be NOTE: 460 volt units have a stepdown autotransformer that supplies performed on this equipment.
Page 28 605C--B: Installation Instruction To properly check or adjust charge, conditions must be favorable for subcooling charging. Favorable conditions exist when the outdoor temperature is between 75_F to 115_F (24_C and 46_C), and the indoor temperature is between 70_F and 80_F (21_C and 27_C). Follow the procedure above. A240116 Fig.
Page 29: Step 5 - Refrigerant Circuit
605C--B: Installation Instruction Step 2 – Outdoor Coil, Indoor Coil, and Condensate with the proper electrical instrumentation. Refer to the unit wiring label when making these checkouts. Drain Pan Step 5 – Refrigerant Circuit Inspect the condenser coil, evaporator coil, and condensate drain pan at Inspect all refrigerant tubing connections.
Page 30: Step 10 - High-Pressure Switch
605C--B: Installation Instruction 3. Apply ohm meter leads across switch. You should have continuity on a good switch. Step 11 – Copeland Scroll Compressor (Puron Advance R-454B Refrigerant) The compressor used in this product is specifically designed to operate with Puron Advance (R-454B) refrigerant and cannot be interchanged.
Page 31 605C--B: Installation Instruction FAN GRILLE MOTOR MOTOR SHAFT A08505 MAX DISTANCE BETWEEN TOP OF FAN GRILLE AND BOTTOM OF FAN BLADE “A” Size Fig. 27 – Fan Blade Position Step 12 – Refrigerant System 1. Cover extended roof working area with an impermeable polyethylene (plastic) drip cloth or tarp.
Page 32: Troubleshooting
605C--B: Installation Instruction Flashing 5 pressure gauges read 0 psig. Never open system without breaking vacuum with dry nitrogen. If the code does not clear after power cycling the system, replace the Check Defrost Thermostat sensor. Flashing 6 The defrost thermostat is usually located on the lowest liquid leaving circuit of the left condenser coil (see Fig.
Page 33 605C--B: Installation Instruction Table 11 – Troubleshooting Chart SYMPTOM CAUSE REMEDY Power failure Call power company Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker Defective contactor, transformer, or high-pressure, Replace component loss-of-charge or low-pressure switch Compressor and condenser fan will not start. Insufficient line voltage Determine cause and correct Incorrect or faulty wiring...
Page 34 605C--B: Installation Instruction Table 12 – Dissipation Board Status Code Descriptions A240111 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 35 605C--B: Installation Instruction Start-Up Checklist (Remove and Store in Job Files) I. PRELIMINARY INFORMATION MODEL NO.: ____________________________________________ SERIAL NO.: ____________________________________________ DATE: __________________________________________________ TECHNICIAN: ___________________________________________ II. PRESTART-UP (Insert check mark in box as each item is completed) ( ) VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT ( ) REMOVE ALL SHIPPING HOLD DOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS ( ) CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS ( ) CHECK THAT INDOOR (EVAPORATOR) AIR FILTER IS CLEAN AND IN PLACE...
Page 36: Decommissioning
605C--B: Installation Instruction Decommissioning the event of a refrigerant release. If there are any doubts, please contact the recovery machine manufacturer before using. This unit is designed to provide many years of comfort. Eventually, this e. Connect recovery equipment to gauge ports on unit and to the unit will need to be replaced.

This manual is also suitable for:

Legacy 605c-b 24 Legacy 605c-b 30 Legacy 605c-b 36 Legacy 605c-b 42 Legacy 605c-b 48 Legacy 605c-b 60

Bryant Legacy 605C-B Installation Instruction

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