Installation Guide

ManualsBrandsKelvinator ManualsHeat PumpsJT4BE-060KA

14 SEERSPLIT SYSTEM HEAT PUMP WITH MICROCHANNEL COILS

T4BE - 018, 024, 030, 036, 042, 048, & 060 (1.5, 2, 2.5, 3, 3.5, 4, & 5 TON) SERIES

SINGLE PHASE MODELS

IMPORTANT

ATTENTION INSTALLERS:

It is your responsibility to know this product better than your customer. This includes being able to install the product

according to strict safety guidelines and instructing the customer on how to operate and maintain the equipment for

the life of the product. Safety should always be the deciding factor when installing this product and using common

sense plays an important role as well. Pay attention to all safety warnings and any other special notes highlighted

in the manual. Improper installation of the furnace or failure to follow safety warnings could result in serious injury,

death, or property damage.

These instructions are primarily intended to assist qualiﬁed individuals experienced in the proper installation of this

appliance. Some local codes require licensed installation/service personnel for this type of equipment. Please read all

instructions carefully before starting the installation. Return these instructions to the customer’s package for future

reference.

DO NOT DESTROY. PLEASE READ CAREFULLY & KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.

INSTALLATION INSTRUCTIONS

REFRIGERANT CHARGING ............................................ 9

Charging the Unit in AC Mode ......................................... 9

Application Notes & Charging Charts

(Cooling Mode Only) ....................................................... 10

Figure 6. Charging Chart for 1.5 Ton Models .................10

Figure 7. Charging Chart for 2 Ton Models ....................11

Figure 8. Charging Chart for 2.5 Ton Models .................11

Figure 9. Charging Chart for 3 Ton Models ....................12

Figure 10. Charging Chart for 3.5 Ton Models ...............12

Figure 11. Charging Chart for 4 Ton Models ..................13

Figure 12. Charging Chart for 5 Ton Models ..................13

Refrigerant Charging Tables (Cooling Mode Only) ......... 14

Table 5. Charging Table for 1.5 Ton Models ................... 14

Table 6. Charging Table for 2 Ton Models ...................... 14

Table 7. Charging Table for 2.5 Ton Models ................... 15

Table 8. Charging Table for 3 Ton Models ...................... 15

Table 9. Charging Table for 3.5 Ton Models ................... 16

Table 10. Charging Table for 4 Ton Models .................... 16

Table 11. Charging Table for 5 Ton Models .................... 17

Application Notes & Heat Mode Veriﬁcation Tables

(Heat Mode Only) ............................................................ 18

Table 12. Veriﬁcation Table for 1.5 Ton Models .............. 19

Table 13. Veriﬁcation Table for 2 Ton Models ................. 19

Table 14. Veriﬁcation Table for 2.5 Ton Models .............. 19

Table 15. Veriﬁcation Table for 3 Ton Models ................. 19

Table 16. Veriﬁcation Table for 3.5 Ton Models .............. 20

Table 17. Veriﬁcation Table for 4 Ton Models ................. 20

Table 18. Veriﬁcation Table for 5 Ton Models ................. 20

WIRING DIAGRAMS ......................................................... 21

Figure 13. W.D. for 1.5 - 5 Ton Models Equipped With

CoreSense

Diagnostic Module ................... 21

Figure 14. W.D. for 1.5 - 5 Ton Models NOT Equipped

With CoreSense

Diagnostic Module .......... 22

Figure 15. W.D. for 1.5 - 5 Ton Models Equipped with

Low Pressure Switch .................................... 23

INSTALLATION / PERFORMANCE CHECK LIST ........... 24

REPLACEMENT PARTS ................................................... 24

IMPORTANT SAFETY INFORMATION ............................ 2

HEAT PUMP INSTALLATION ........................................... 3

General Information ......................................................... 3

Before You Install the Heat Pump ................................... 3

Locating the Heat Pump .................................................. 3

Packaging Removal ......................................................... 3

Ground Level ................................................................... 3

Rooftop ............................................................................ 3

Connecting Refrigerant Tubing Between the Indoor &

Outdoor Unit .................................................................... 4

Outdoor Oriﬁce Removal & Installation ........................... 4

ELECTRICAL WIRING ...................................................... 5

Pre-Electrical Checklist ................................................... 5

Line Voltage ..................................................................... 5

Grounding ........................................................................ 6

Thermostat / Low Voltage Connections .......................... 6

CoreSense

Diagnostics Module ................................... 6

Compressor Protection .................................................. 7

Resetting Alert Codes ................................................... 7

START UP & ADJUSTMENTS ......................................... 7

Pre-Start Check List ........................................................ 7

Start-Up Procedures ........................................................ 7

Air Circulation - Indoor Blower ......................................... 7

Short Cycle Protection ..................................................... 8

System Cooling ............................................................... 8

System Heating ............................................................... 8

Defrost Control Board Test Pins ...................................... 8

HEAT PUMP MAINTENANCE .......................................... 8

Summary of content (24 pages)

PAGE 1
SPLIT SYSTEM HEAT PUMP WITH MICROCHANNEL COILS 14 SEER INSTALLATION INSTRUCTIONS T4BE - 018, 024, 030, 036, 042, 048, & 060 (1.5, 2, 2.5, 3, 3.5, 4, & 5 TON) SERIES SINGLE PHASE MODELS IMPORTANT SAFETY INFORMATION............................. 2 HEAT PUMP INSTALLATION............................................ 3 General Information.......................................................... 3 Before You Install the Heat Pump.................................... 3 Locating the Heat Pump.......................
PAGE 2
IMPORTANT SAFETY INFORMATION INSTALLER: Please read all instructions before servicing this equipment. Pay attention to all safety warnings and any other special notes highlighted in the manual. Safety markings are used frequently throughout this manual to designate a degree or level of seriousness and should not be ignored. WARNING indicates a potentially hazardous situation that if not avoided, could result in personal injury or death.
PAGE 3
HEAT PUMP INSTALLATION General Information Split system heat pumps are designed only for outdoor rooftop or ground level installations. This unit has been tested for capacity and efficiency in accordance with AHRI Standards and will provide many years of safe and dependable comfort, providing it is properly installed and maintained. Abuse, improper use, and/or improper maintenance can shorten the life of the appliance and create unsafe hazards.
PAGE 4
Connecting Refrigerant Tubing Between the Indoor & Outdoor Unit connection of the liquid valve and not inside the outdoor unit’s distributor. Perform steps 1 - 5 if the outdoor restrictor needs to be changed. CAUTION: When servicing, cover or seal openings to minimize the exposure of the refrigerant system to air to prevent accumulation of moisture and other contaminants.
PAGE 5
2. Insert a light-gauge wire hook between the valve body and the restrictor orifice while being careful not to scratch either part. Carefully remove the restrictor orifice from the valve body. See Figure 3 (page 4). 3. Check the actual size of the new orifice. NOTE: The size is stamped on its side. Do not use pin gauges to measure the orifice diameter. 4. Insert the new orifice into the valve body, with the rounded end facing into the valve. See Figure 2 (page 4).
PAGE 6
• Optional equipment requiring connection to the power or control circuits must be wired in strict accordance of the NEC (ANSI/NFPA 70), applicable local codes, and the instructions provided with the equipment. Thermostat G R E C O Y W2 Grounding Green G W2 IN Red R W C R White W2 OUT Black C O Y1 IN Air Handler Heat Pump (OD Section) Figure 4. Typical Thermostat Connections Compressor Common Wire Reset Button Run / Alert (Yellow LED) Trip / Lock (Red LED) Figure 5.
PAGE 7
Compressor Protection The CoreSenseTM Diagnostics module utilizes proprietary algorithms to protect the compressor and system from repeated trips of system pressure controls and the compressor internal overload. The protection terminal of the module should be wired in series with the system low pressure and high pressure cutouts, as well as the compressor contactor.
PAGE 8
Short Cycle Protection 1. Set the thermostat system mode to COOL. Observe the temperature setting of the thermostat and gradually raise the set-point temperature until the unit de-energizes. 2. Immediately lower the set point temperature of the thermostat to its original setting and verify that the indoor blower is energized and outdoor unit remains de-energized. 3. After approximately 5 minutes, verify the outdoor unit energizes and the temperature of the discharge air is cooler than the room temperature.
PAGE 9
REFRIGERANT CHARGING WARNING: This split system heat pump is shipped charged with R410A refrigerant and ready for installation. If repairs make it necessary for evacuation and charging, it should only be attempted by qualified trained personnel thoroughly familiar with this equipment. Under no circumstances should the owner attempt to install and/or service this equipment. Failure to comply with this warning could result in property damage, personal injury, or death.
PAGE 10
Application Notes & Charging Charts (Cooling Mode Only) • This equipment’s cooling system contains refrigerant under high pressure. Always use safe and environmentally sound methods when handling refrigerant handling or servicing the unit. Review the factory literature and safety warnings prior to servicing. • When repairing system leaks, always use a nitrogen (inert) gas to protect the refrigerant system and pressure check the repair before re-charging.
PAGE 11
Liquid Pressure (psig) 2 Ton Charging Chart - Cooling 600 580 560 540 520 500 480 460 440 420 400 380 360 340 320 300 280 260 240 220 200 Remove refrigerant when above the curve Add refrigerant when below the curve 75 80 85 90 95 100 105 110 115 120 125 130 135 Liquid Temperature (0F) Figure 7.
PAGE 12
Liquid Pressure (psig) 3 Ton Charging Chart - Cooling 600 580 560 540 520 500 480 460 440 420 400 380 360 340 320 300 280 260 240 220 200 Remove refrigerant when above the curve Add refrigerant when below the curve 75 80 85 90 95 100 105 110 115 120 125 130 135 Liquid Temperature (0F) Figure 9. Charging Chart for 3 Ton Models (TXV Matches) Liquid Pressure (psig) 3.
PAGE 13
Liquid Pressure (psig) 4 Ton Charging Chart - Cooling 600 580 560 540 520 500 480 460 440 420 400 380 360 340 320 300 280 260 240 220 200 Remove refrigerant when above the curve Add refrigerant when below the curve 75 80 85 90 95 100 105 110 115 120 125 130 135 Liquid Temperature (0F) Figure 11.
PAGE 14
Refrigerant Charging Tables (Cooling Mode Only) Shaded boxes indicate flooded conditions. Rated design values. The suction pressure will vary from design value if indoor air flow, entering dry bulb, or entering wet bulb temperatures are lower than design. 1. All pressures are listed in psig and all temperatures in ° F 2. Discharge temperatures greater than charted values indicate an undercharged system. 3.
PAGE 15
Shaded boxes indicate flooded conditions. Rated design values. The suction pressure will vary from design value if indoor air flow, entering dry bulb, or entering wet bulb temperatures are lower than design. 1. All pressures are listed in psig and all temperatures in ° F 2. Discharge temperatures greater than charted values indicate an undercharged system. 3.
PAGE 16
Shaded boxes indicate flooded conditions. Rated design values. The suction pressure will vary from design value if indoor air flow, entering dry bulb, or entering wet bulb temperatures are lower than design. 1. All pressures are listed in psig and all temperatures in ° F 2. Discharge temperatures greater than charted values indicate an undercharged system. 3.
PAGE 17
Shaded boxes indicate flooded conditions. Rated design values. The suction pressure will vary from design value if indoor air flow, entering dry bulb, or entering wet bulb temperatures are lower than design. 1. All pressures are listed in psig and all temperatures in ° F 2. Discharge temperatures greater than charted values indicate an undercharged system. 3.
PAGE 18
Application Notes & Heat Mode Verification Tables (Heat Mode Only) Shaded boxes indicate flooded conditions. Rated design values. The suction pressure will vary from design value if outdoor air flow, entering dry bulb, or entering wet bulb temperatures vary. 1. All pressures are listed in psig and all temperatures in ° F 2. Discharge temperatures greater than charted values indicate an undercharged system.
PAGE 19
OUTDOOR TEMPERATURE (DEG. F) 10 20 30 40 50 60 SUC. PRESS LIQUID PRESS. DISCH. PRESS. DISCH. TEMP. SUC. PRESS. LIQUID PRESS. DISCH. PRESS. DISCH. TEMP. SUC. PRESS. LIQUID PRESS. DISCH. PRESS. DISCH. TEMP. SUC. PRESS. LIQUID PRESS. DISCH. PRESS. DISCH. TEMP. SUC. PRESS. LIQUID PRESS. DISCH. PRESS. DISCH. TEMP. SUC. PRESS. LIQUID PRESS. DISCH. PRESS. DISCH. TEMP. SUC. PRESS. LIQUID PRESS. DISCH. PRESS. DISCH. TEMP.
PAGE 20
OUTDOOR TEMPERATURE (DEG. F) 10 20 30 40 50 60 SUC. PRESS LIQUID PRESS. DISCH. PRESS. DISCH. TEMP. SUC. PRESS. LIQUID PRESS. DISCH. PRESS. DISCH. TEMP. SUC. PRESS. LIQUID PRESS. DISCH. PRESS. DISCH. TEMP. SUC. PRESS. LIQUID PRESS. DISCH. PRESS. DISCH. TEMP. SUC. PRESS. LIQUID PRESS. DISCH. PRESS. DISCH. TEMP. SUC. PRESS. LIQUID PRESS. DISCH. PRESS. DISCH. TEMP. SUC. PRESS. LIQUID PRESS. DISCH. PRESS. DISCH. TEMP.
PAGE 21
YELLOW R C R C OUTDOOR FAN MOTOR S COMPRESSOR CAPACITOR F Y E THERMOSTAT R O C W2 HP2 HP1 LP2 LP1 W2 OUT RV2 RV1 Y2 IN Y1 IN R O C W2 IN RVS HGBP HPS BLACK Y E THERMOSTAT R O C Y1 IN R O C W2 IN W2 RVS R C Y P CORESENSE BLACK BLACK BLACK 2 RED YELLOW BLACK Y2 IN HP2 HP1 LP2 LP1 W2 OUT RV2 RV1 COIL#1 TEMP HOT1 HOT2 (24V COM) Y1 OUT Y2 OUT OUTDOOR TEMP FAN1 FAN2 CCH2CCH1 DEFROST CONTROL BOARD BLACK AMB SENSOR - Ambient Sensor CC - Contactor Coil CCH - Crankcase Heater HPS
PAGE 22
YELLOW R C OUTDOOR FAN MOTOR S COMPRESSOR C HPS Y E THERMOSTAT R O C W2 HP2 HP1 LP2 LP1 W2 OUT RV2 RV1 Y2 IN Y1 IN R O C W2 IN HOT1 HOT2 (24V COM) Y1 OUT Y2 OUT COIL#1 TEMP OUTDOOR TEMP FAN1 FAN2 CCH2 CCH1 CCH T2 L2 RVS HGBP HPS COIL SENSOR 5 Y E THERMOSTAT R O C Y1 IN R O C W2 IN Y2 IN HP2 HP1 LP2 LP1 W2 OUT RV2 RV1 COIL#1 TEMP HOT1 HOT2 (24V COM) Y1 OUT Y2 OUT OUTDOOR TEMP FAN1 FAN2 CCH2CCH1 DEFROST CONTROL BOARD AMB SENSOR W2 BLACK AMB SENSOR - Ambient Sensor CC - Co
PAGE 23
YELLOW C R C OUTDOOR FAN MOTOR S COMPRESSOR HPS Y E THERMOSTAT R O C W2 HP2 HP1 LP2 LP1 W2 OUT RV2 RV1 Y2 IN Y1 IN R O C W2 IN HOT1 HOT2 (24V COM) Y1 OUT Y2 OUT COIL#1 TEMP OUTDOOR TEMP FAN1 FAN2 CCH2 CCH1 CCH T2 L2 RVS LPS HGBP HPS COIL SENSOR 5 Y E THERMOSTAT R O C Y1 IN R O C W2 IN Y2 IN HP2 HP1 LP2 LP1 W2 OUT RV2 RV1 COIL#1 TEMP HOT1 HOT2 (24V COM) Y1 OUT Y2 OUT OUTDOOR TEMP FAN1 FAN2 CCH2CCH1 DEFROST CONTROL BOARD AMB SENSOR W2 BLACK AMB SENSOR - Ambient Sensor CC -
PAGE 24
INSTALLATION / PERFORMANCE CHECK LIST INSTALLATION ADDRESS: CITY: ELECTRICAL SYSTEM STATE: UNIT MODEL # YES NO INSTALLER NAME: CITY________________________ STATE_________________ Has the owner’s information been reviewed with the customer? YES NO Has the Literature Package been left with the unit? YES NO NO Line voltage polarity correct? YES NO YES Stage-1 Liquid Pressure (high side) Stage-1 Suction Pressure (low side) Has the thermostat been calibrated? YES NO Is the thermostat level