Bryant CHS072 Installation Instructions Manual
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Bryant CHS072 Installation Instructions Manual

Bryant CHS072 Installation Instructions Manual

R-410a split system heat pump
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INSTALLATION INSTRUCTIONS
R- -410A Split System Heat Pump
NOTE: Read the entire instruction manual before starting
the installation

TABLE OF CONTENTS

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  • Page 1: Table Of Contents

    INSTALLATION INSTRUCTIONS R- -410A Split System Heat Pump CHS072 - - 121 NOTE: Read the entire instruction manual before starting the installation TABLE OF CONTENTS SAFETY CONSIDERATIONS ....

  • Page 2: Safety Considerations

    SAFETY CONSIDERATIONS WARNING Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical ELECTRICAL SHOCK HAZARD shock or other conditions which may cause personal Failure to follow this warning could cause personal injury or property damage. Consult a qualified installer, injury or death.

  • Page 3: Installation Guidelines

    Replace any CHS with FHS riser sections with reduced pipe sizes if existing pipe sizes Model Numbers Full Load Airflow (cfm) exceed these maximum tube size limits. CHS072*A/B --- FHS072 2400 CHS072*G/H --- FHS072 2400 CHS091 --- FHS090 3000...
  • Page 4 42-3/8 CHS072 [559] [635] [330] [1076] 42-3/8 CHS091 [508] [610] [533] [1076] 50-3/8 CHS121 [533] [610] [584] [1280] C150355 Fig. 1 - - CHS072- - 121 Unit Dimensions 506 01 2303 01 Specifications are subject to change without notice.
  • Page 5 Table 1A — Physical Data — CHS072- -121 Units — 60 Hz English UNIT CHS072*A/B CHS072*G/H CHS091*A/B CHS121*A/B CHS121*G/H NOMINAL CAPACITY (tons) OPERATING WEIGHTS (lb) Aluminum-Fin Coils ‡ REFRIGERANT TYPE R-410A R-410A R-410A R-410A † Operating Charge (w/ fan coil), Typical (lb) 18.0...
  • Page 6 Table 1B — Physical Data — CHS072- -121 Units — 60 Hz SI UNIT CHS072*A/B CHS072*G/H CHS091*A/B CHS121*A/B CHS121*G/H NOMINAL CAPACITY (kW) 21.1 21.1 26.4 35.1 35.1 OPERATING WEIGHT (kg) Aluminum-Fin Coils ‡ REFRIGERANT TYPE R-410A R-410A R-410A R-410A R-410A †...

  • Page 7: Jobsite Survey

    MODEL SERIES Position Number C = R-410A Condensing Unit H = Heat Pump Type S= Standard Efficiency Efficiency 072 = 6 Tons 091 = 7.5 Tons 121 = 10 Tons Nominal Cooling Capacity H = 208/230−3−60 L = 460−3−60 S = 575−3−60 Voltage A = Single Circuit B = Single Circuit with Low Ambient Controller...

  • Page 8: Step 2 - Complete Pre-Installation Checks

    Do not install the outdoor unit in an area where fresh air S Locate the unit so that the outdoor coil (condenser) supply to the outdoor coil may be restricted or when airflow is unrestricted on all sides and above. recirculation from the condenser fan discharge is possible.
  • Page 9 Table 2 – CHS072- - 121 Piping Recommendations (Single-Circuit Unit) R-410A Equivalent Length 0-38 38-75 75-113 113-150 Model Length Linear 0-25 25-50 50-75 75-100 Nominal Capacity Length Equiiv 0-38 38-75 75-113 113-115 CHS072 Liquid Line Max Lift Cool Heat Vapor Line Charge (lbs) 17.8...
  • Page 10 CHS Unit Liquid Desiccant Part Model-Size BELOW ABOVE Line OD Volume Number Ref Size ID Unit ID Unit CHS072 8 cu. in. KH43LS088 Max Diameter, Single Pipe (in.) 072*A/B CHS091 16 cu. in. KH43LS102 072*G/H CHS121 16 cu. in. KH43LS102 091*A/B...
  • Page 11 Head Pressure CAPACITY Standard Unit † Control source at the outdoor unit service valves and re-install the two Schrader valve cores. Torque the cores to 2-3 in-lbs CHS072 35 (1.7) –20 (–28.9) (23-34 N-cm). CHS091 35 (1.7) –20 (–28.9) CHS121 35 (1.7)

  • Page 12: Step 6 - Install Accessories

    Allow high and low side pressures to equalize. If pressures All units except 208/230-v units are factory wired for the do not equalize readily, charge R-410A vapor (using voltage shown on the nameplate. If the 208/230-v unit is special service manifold with expansion device) into the to be connected to a 208-v power supply, the control vapor line service port for the low side of system to assure transformer must be rewired by moving the black wire...
  • Page 13 All field wiring must comply with the NEC and local Convenience requirements. Outlet GFCI Units Without Disconnect Option Pwd-CO Fuse Switch Disconnect Pwd-CO Transformer 208/230-3-60 460-3-60 575-3-60 Control Box Access Panel Units With Disconnect Option C11038 Fig. 10 - - Convenience Outlet Location Optional Factory Non-powered type: This type requires the field...

  • Page 14: Installation

    For wire runs up to 50 ft. (15 m), use no. 18 AWG COVER – WHILE-IN-USE RECEPTACLE WEATHERPROOF (American Wire Gage) insulated wire (35C minimum). NOT INCLUDED For 50 to 75 ft. (15 to 23 m), use no. 16 AWG insulated wire (35C minimum).
  • Page 15 Table 8 – Electrical Data — ChS072- - 121 60 Hz Units COMPRESSOR WITHOUT POWERED CONVENIENCE OUTLET NOMINAL VOLTAGE POWER RANGE No. 1 No. 2 OFM (ea) POWER SUPPLY DISCONNECT SIZE SUPPLY UNIT Fuse or V--- Ph--- Hz HACR Brkr 208/230---3---60 19.6...

  • Page 16: Pre-Start-Up

    PRE-START-UP CAUTION IMPORTANT: Before beginning Pre-Start-Up or UNIT DAMAGE HAZARD Start-Up, review Start-Up Checklist at the back of Failure to follow this caution may result in equipment this book. The Checklist assures proper start-up of a damage. unit and provides a record of unit condition, application requirements, system information, and Prior to starting compressor, a preliminary charge of operation at initial start-up.
  • Page 17 Compressor Overload — To manually reset ASTP, the compressor should be stopped and allowed to cool. If the compressor is not This overload interrupts power to the compressor when stopped, the motor will run until the motor protector trips, either the current or internal motor winding temperature which occurs up to 90 minutes later.
  • Page 18 Remove Charge if Below the Curve 1050 1400 1750 2100 2450 2800 3150 3500 3850 Pressure at Liquid Valve (PSIG / Kpa) 38AU500364 C150421 Fig. 15 - - CHS072*A/B Charging Chart 506 01 2303 01 Specifications are subject to change without notice.
  • Page 19 Curve 1050 1400 1750 2100 2450 2800 3150 3500 3850 Pressure at Liquid Valve (PSIG / Kpa) PN: 38AU000485 REV - C150343 Fig. 16 - - CHS072*G/H Charging Chart 506 01 2303 01 Specifications are subject to change without notice.
  • Page 20 7.5 Ton Heat Pump Charging Chart R410a Refrigerant Add Charge if Above the Curve Remove Charge if Below the Curve 1050 1400 1750 2100 2450 2800 3150 3500 3850 Pressure at Liquid Valve (PSIG / Kpa) 38AU500793 C150422 Fig. 17 - - CHS091*A/B Charging Chart 506 01 2303 01 Specifications are subject to change without notice.
  • Page 21 10 Ton Heat Pump Charging Chart R410a Refrigerant Add Charge if Above the Curve Remove Charge if Below the Curve 1050 1400 1750 2100 2450 2800 3150 3500 3850 Pressure at Liquid Valve (PSIG / Kpa) 38AU500794 C150423 Fig. 18 - - CHS121*A/B Charging Chart 506 01 2303 01 Specifications are subject to change without notice.
  • Page 22 10 TON HEAT PUMP DUAL STAGE CHARGING CHART PURON (COMPRESSOR FULL LOAD, ALL CONDENSER FANS OPERATING) Add Charge if Above the Curve Remove Charge if Below the Curve 1050 1400 1750 2100 2450 2800 3150 3500 3850 Pressure at Liquid Valve (PSIG / Kpa) PN: 38AU000486 REV - C150344 Fig.
  • Page 23 C11043 Fig. 20 - - CHS072- - 121*A/B Single Circuit / Single Stage Wiring Diagram (208/230-3-60 shown) 506 01 2303 01 Specifications are subject to change without notice.
  • Page 24 C150345 Fig. 21 - - CHS072*G/H Single Circuit / Two Stage Wiring Diagram (208/230, 460-3-60 shown) 506 01 2303 01 Specifications are subject to change without notice.
  • Page 25 C150346 Fig. 22 - - CHS121*G/H Single Circuit / Two Stage Wiring Diagram (208/230, 460-3-60 shown) 506 01 2303 01 Specifications are subject to change without notice.

  • Page 26: Operating Sequence

    Two- - Stage Units— (RVS1) and P3- - 10 (COMP1). The OF output energizes For two stage units, the CHS072*G/H uses a two- - stage outdoor fan relay (OFR); both outdoor fan motors start Copeland Ultratech Scroll compressor in conjunction with and run.

  • Page 27: Cooling Unit With Economizer

    Heating — position. Output PL3- - 10 (COMP1, 24- - v) is received at CADM1 terminal Y. If anti- - recycle time delay period has When the thermostat calls for first stage heating, terminal not expired, safety pressure switches are open, and/or W1 is energized.

  • Page 28: Supplemental Heating/Emergency Heating

    ROUTINE SYSTEM MAINTENANCE During the Defrost cycle, output EHEAT is also energized (if not already energized by a thermostat W2 demand); supplemental heater will be energized. During the Defrost These items should be part of a routine maintenance Cycle, LED1 on the DFB will be illuminated. The Defrost program, to be checked every month or two, until a cycle ends when DFT opens (as liquid temperature exiting specific schedule for each can be identified for this...

  • Page 29: Service

    SERVICE 3. Place terry cloth shop towel inside unit immediately under component(s) to be serviced and prevent lubri- Refrigeration System cant run-offs through the louvered openings in the base pan. CAUTION 4. Perform required service. 5. Remove and dispose of any oil contaminated material per local codes.

  • Page 30: Refrigerant System Pressure Access Ports

    SEAT CORE (Part No. EC39EZ067) 1/2-20 UNF RH 0.596 45° 30° WASHER DEPRESSOR PER ARI 720 O-RING 1/2" HEX +.01/-.035 5/8” HEX FROM FACE OF BODY This surface provides a metal to metal seal when 7/16-20 UNF RH torqued into the seat. Appropriate handling is required to not scratch or dent the surface.
  • Page 31 Table 9 – CHS Defrost Board I/O and Jumper Configurations Inputs Point Name Type of I/O Connection Pin Number Unit Connection Note G Fan DI, 24-vac P2-3 Not used Y1 Cool 1 DI, 24-vac P2-5 TB-Y1 W1 Heat 1 DI, 24-vac P2-7 TB-W1 Y2 Cool 2...
  • Page 32 positions of DIP switches SW1 and SW2 (see Fig. 26 and Table 10). The default run period is 60 minutes. C10790 Fig. 26 - - DIP Switch Settings — Defrost Board Switches At the end of the continuous run period, the defrost control will test for a need to defrost.
  • Page 33 For CHS091 units, position the DFT on the Vapor Stub For CHS121 units, (second from top) position the DFT For CHS072 units, as shown. on the Vapor Stub position the DFT (second from top) on the Vapor Stub as shown.
  • Page 34 Fans Service Valves C11045 Fig. 28 - - CHS072 Exterior Outdoor Coil Defrost Thermostat (DFT) High Flow Access Ports C150032 Fig. 29 - - CHS072 Interior 506 01 2303 01 Specifications are subject to change without notice.
  • Page 35 Fans Service Valves C11047 Fig. 30 - - CHS091 Exterior Outdoor Coil Defrost Thermostat (DFT) High Flow Access Ports C150033 Fig. 31 - - CHS091 Interior 506 01 2303 01 Specifications are subject to change without notice.
  • Page 36 Fans Service Valves C11049 Fig. 32 - - CHS121 Exterior Outdoor Coil Defrost Thermostat (DFT) High Flow Access Ports C150034 Fig. 33 - - CHS121*A/B Interior 506 01 2303 01 Specifications are subject to change without notice.
  • Page 37 Defrost Thermostat (DFT) High Flow Access Ports C150424 Fig. 34 - - CHS121*G/H Interior 506 01 2303 01 Specifications are subject to change without notice.

  • Page 38: Comfort Alert Diagnostic Module

    Compressor T3 Line Alert condition has been detected and corrected. NOTE:Applies to CHS072*07G/H only The TRIP LED indicates either a time-delay period is Control of the compressor contactor coil is through a currently active (RED LED is blinking) or the module has contact between terminals P and C.
  • Page 39 Table 11 – LED Status Codes Status LED Status LED Description Status LED Troubleshooting Information Green “POWER” Module has power Supply voltage is present at module terminals Compressor protector is open Red “TRIP” LED On Solid Thermostat demand signal Y is present, but the Condensing unit power disconnect is open compressor is not running.

  • Page 40: Lubrication

    Table 12 – CADM Troubleshooting Miswired Module Indication Recommended Troubleshooting Action Green LED is not on, Determine if both R and C module terminals are connected. Verify voltage in module does not power up present at module’s R and C terminals. NOTE: The CADM requires a constant nominal 24VAC power supply.
  • Page 41 CAUTION CAUTION PERSONAL INJURY AND UNIT DAMAGE UNIT RELIABILTY HAZARD HAZARD Failure to follow this caution may result in reduced Failure to follow this caution may result in personal unit performance . injury or equipment damage. High velocity water from a pressure washer, garden Only approved cleaning is recommended.

  • Page 42: Fastener Torque Values

    FASTENER TORQUE VALUES 5. Mix environmentally sound coil cleaner in a 2 gal- lon garden sprayer according to the instructions in- cluded with the cleaner. The optimum solution tem- Table 13 – Torque Values perature is 100F (38C). NOTE: Do NOT USE water in excess of 130F (54C), Compressor mounting bolts 65--- 75 in–lbs as the enzymatic activity will be destroyed.

  • Page 43: Troubleshooting

    TROUBLESHOOTING PROBLEM CAUSE REMEDY Compressor and Power failure. Call power company. Outdoor Fan Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker. Determine root cause. Will Not Start. Defective thermostat, contactor, transformer, Replace component. control relay, or capacitor. Insufficient line voltage.

  • Page 44: Air Conditioner And Heat Pump With R- - 410A

    APPENDIX A S Do not install a suction-line filter drier in liquid-line. S POE oils absorb moisture rapidly. Do not expose oil to AIR CONDITIONER AND HEAT PUMP atmosphere. — WITH R- - 410A QUICK REFERENCE S POE oils may cause damage to certain plastics and GUIDE roofing materials.

  • Page 45: Appendix B Wiring Diagram List

    APPENDIX B WIRING DIAGRAM LIST Cooling Unit Electrical Characteristics Diagram Number Stages 208/230-3-60 38AU500363 460-3-60 38AU500362 CAS072*A/B 575-3-60 38AU500435 208/230-3-60 38AU000443 460-3-60 38AU000443 CAS072*G/H 575-3-60 38AU000444 208/230-3-60 38AU500363 460-3-60 38AU500362 CAS091*A/B 575-3-60 38AU500435 208/230-3-60 38AU500363 460-3-60 38AU500362 CHS121*A/B 575-3-60 38AU500435 208/230-3-60 38AU000445 460-3-60...

  • Page 46: Low Ambient Option - Factory Installed

    APPENDIX C Low Ambient Option — Factory Installed Troubleshooting — OBSERVATION POSSIBLE REMEDY Units with the factory installed low ambient option are Check power & wiring equipped with a Motormaster solid- - state head pressure Check sensor location control which regulates fan speed. A temperature sensor, Fans won’t start Check sensor resistance mounted on circuit 1 of the outdoor coil (see Fig.
  • Page 47 C10801 Fig. 38 - - Sensor Locations 506 01 2303 01 Specifications are subject to change without notice.
  • Page 48 Table 14 – Wind Baffle Dimensions DIMENSIONS --- INCHES UNIT BAFFLE LEFT SIDE CHS072 BACK LEFT SIDE CHS091 BACK RIGHT SIDE LEFT SIDE CHS121 BACK RIGHT SIDE DIMENSIONS --- MM UNIT BAFFLE LEFT SIDE CHS072 BACK 1016 1035 1054 LEFT SIDE...
  • Page 49 C10800 Fig. 39 - - Wind Baffles 506 01 2303 01 Specifications are subject to change without notice.
  • Page 50 Copyright 2019 International Comfort Products Lewisburg, TN 37091 USA Replaces: 506 01 230300 506 01 2303 01 Specifications are subject to change without notice. 10-19...

  • Page 51: Start-Up Checklist

    START-UP CHECKLIST I. PRELIMINARY INFORMATION OUTDOOR: MODEL NO. SERIAL NO. INDOOR: MODEL NO. SERIAL NO. ADDITIONAL ACCESSORIES II. PRE-START-UP OUTDOOR UNIT IS THERE ANY SHIPPING DAMAGE? (Y/N) IF SO, WHERE: WILL THIS DAMAGE PREVENT UNIT START-UP? (Y/N) CHECK POWER SUPPLY. DOES IT AGREE WITH UNIT? (Y/N) HAS THE GROUND WIRE BEEN CONNECTED? (Y/N)
  • Page 52 CHECK VOLTAGE IMBALANCE LINE-TO-LINE VOLTS: (AB + AC + BC)/3 = AVERAGE VOLTAGE = MAXIMUM DEVIATION FROM AVERAGE VOLTAGE = VOLTAGE IMBALANCE = 100 X (MAX DEVIATION)/(AVERAGE VOLTAGE) = IF OVER 2% VOLTAGE IMBALANCE, DO NOT ATTEMPT TO START SYSTEM! CALL LOCAL POWER COMPANY FOR ASSISTANCE.

This manual is also suitable for:

Chs091Chs121Chs121haa0a00aChs121laa0a00aChs091haa0a00aChs091laa0a00a

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