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P5417050-rev.1

Table 8.1 Recommended Wiring Capacity and Sizes

Follow local electrical codes when selecting a GFCI device.

Model

Power

Supply

Minimum Wire Thickness

[AWG (mm

)]

GFCI

Main Switch

MCA

(Minimum

Circuit

Ampacity)

Power

Supply

Wiring Size

(Main)

Ground

Wiring

Size

Communication

Cable Size

Nominal

Current

Nominal

Sensitive

Current

Nominal

Current Fuse

[A]

[mA]

[A]

(H,Y,C)IC2018B21S

1~,

208/230V

60Hz

(0.82)

0.8

(H,Y,C)IC2024B21S

1.2

NOTES:

1. Follow local codes and regulations when selecting field wires.

2. Select the GFCI with activation speed of 0.1 sec. or less.

3. Total operating current is less than 12A.

● Confirm for the recommended size GFCI shown in Table 8.1.

● Between indoor and outdoor units, communication cabling shall be a minimum of AWG18 (0.82mm

2-Conductor, Stranded Copper. Shielded cable must be considered for applications and routing in

areas of high EMI and other sources of potentially excessive electrical noise to reduce the potential for

communication errors. When shielded cabling is applied, proper bonding and termination of the cable

shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication

cables must be considered per application and local code requirements. Total cable length must not

exceed 3281 ft (1000m).

● Select the wiring size, Ground Fault Circuit Interrupter (GFCI) in accordance with the regulations for

each region, the "Installation and Maintenance Manual", and the dedicated electrical circuit that must be

used.

● Outside of the indoor unit, installation of the power supply wiring, communication cable, and wired

controller cable should be spaced as far apart as possible.

Heat Pump System

Heat Recovery System

8.2.2 Details of Electrical Wiring Connection
The electrical wiring capacity of the outdoor unit should be according to the "Installation and Maintenance

Manual" for the outdoor unit. Adjusting the DIP switches may be required depending on the arrangement

of the outdoor unit.

Select wiring capacity according to Table 8.1. Install a Ground Fault Circuit Interrupter (GFCI) and main

switch as shown in each of the system diagrams below.

NOTICE

Outdoor

Unit

Indoor

Unit

Switchbox

Outdoor Unit

Power Supply

Indoor Unit

Power Supply

Indoor

Unit

Indoor

Unit

GFCI

Main

Switch

GFCI

Main

Switch

Refer to the “Installation and Maintenance Manual”

for the connected outdoor unit for details of wire,

GFCI, and main switch for outdoor unit.

Outdoor Unit

Power Supply

Outdoor

Unit

Change-Over

Box

Indoor Unit

Power Supply

Indoor

Unit

Switchbox

Indoor

Unit

Indoor

Unit

GFCI

Main

Switch

GFCI

Main

Switch

Refer to the “Installation and Maintenance Manual”

for the connected outdoor unit for details of wire,

GFCI, and main switch for outdoor unit.

Содержание CIC2018B21S

Страница 1: ...VERTER DRIVEN MULTI SPLIT SYSTEM HEAT PUMP AIR CONDITIONERS Type Model 2 Way Cassette H Y C IC2018B21S H Y C IC2024B21S IMPORTANT READ AND UNDERSTAND THIS MANUAL BEFORE INSTALLING THIS HEAT PUMP AIR CONDITIONER KEEP THIS MANUAL FOR FUTURE REFERENCE ...

Страница 2: ... to verify that your product model numbers have the same version of software Access the main printed circuit board in each product Locate a white sticker with a P XXXX number or Connect a service checker and locate the ROM number For further assistance please contact our Technical Support Center at 1 844 873 4445 and select Option 2 ...

Страница 3: ...igned for a specific temperature range For optimum performance and long life operate this unit within the range limits according to the table below This manual should be considered as a permanent part of the air conditioning equipment and should remain with the air conditioning equipment Product Inspection upon Arrival 1 Upon receiving this product inspect it for any damages incurred in transit Cl...

Страница 4: ... General Check 22 8 2 Electrical Wiring Capacity 22 8 2 1 Field Minimum Wire Sizes for Power Supply 22 8 2 2 Details of Electrical Wiring Connection 23 8 3 Position of Electrical Wiring Connection 24 8 4 Wired Controller Cable 27 8 4 1 Cautions for Individual Louver Settings 27 8 4 2 Cautions for Decorative Panel with Motion Sensor Kit SOR NED 28 8 4 3 Caution for Electrical Wiring 29 8 5 Wiring C...

Страница 5: ...o local state and national building and safety codes and regulations Incorrect installation could cause leaks electric shock fire or explosion In areas where Seismic Performance requirements are specified the appropriate measures should be taken during installation to guard against possible damage or injury that might occur in an earthquake if the unit is not installed correctly injuries may occur...

Страница 6: ...e electrical box possibly causing electrical failures When installing the unit in a hospital or other facility where electromagnetic waves are generated from nearby medical and or electronic devices be prepared for noise and electromagnetic interference EMI Do not install where the waves can directly radiate into the electrical box controller cable or controller Inverters appliances high frequency...

Страница 7: ...ng area Where the lens for sensor is exposed in high temperature and humidity for a long time Where fluid and corrosive gas exist Where light such as sunlight or direct light affect the sensor Where hot air from a heater or something similar directly affects the sensor Where the airflow bounces back to the sensor by hitting obstacles such as shelf or locker Where blower devices such as a ceiling f...

Страница 8: ...n that for R22 Make sure to use the specified refrigerant piping If not the refrigerant piping may rupture due to an excessive refrigerant pressure Besides pay attention to the piping thickness when using copper refrigerant piping The thickness of copper refrigerant piping differs depending on its material The refrigerant R410A is adopted The refrigerant oil tends to be affected by foreign matters...

Страница 9: ...curely to recommended torque specifications If a circuit breaker or fuse is frequently activated shut down the system and contact your service contractor The polarity of the input terminals is important so be sure to match the polarity when using contacts that have polarity Before installing the controller or remote devices ensure the indoor and outdoor unit operation has been stopped Further be s...

Страница 10: ...pting any maintenance for electrical parts Confirm that no residual voltage is present after disconnecting the power supply Do not clean with or pour water into the controller as it could cause electric shock and or damage the unit Do not use strong detergent such as a solvent Clean with a soft cloth Check that the ground wiring is securely connected Do not connect ground wiring to gas piping wate...

Страница 11: ...with floor and ceiling surfaces Any variance or inclination can cause moisture to back up into the condensate pan overflow and seepage onto ceiling or wall surfaces and cause damage to carpeted surfaces or furniture below Do not install this system in close proximity to septic sewer lines where flammable and toxic gases can coalesce Inspect the condensate pan before the onset of winter to drain aw...

Страница 12: ...amage 4 The indoor unit handle is fabricated from foam polystyrene and is susceptible to breakage if any excessive force is applied as a result of mishandling of the unit during installation 3 3 Factory Supplied Accessories 1 Check to ensure that the following accessories are packed with the indoor unit The screws washers and flare nuts are packed in the pipe insulation 3 Before Installation Acces...

Страница 13: ...Wall Side Minimum Service Space No Tool No Tool 1 Handsaw 11 Wrench 2 Philips Screwdriver 12 Charging Cylinder 3 Vacuum Pump 13 Manifold Gauge 4 Refrigerant Gas Hose 14 Wire Cutter 5 Megohmmeter 15 Gas Leak Detector 6 Copper Pipe Bender 16 Level 7 Manual Water Pump 17 Clamp for Solderless Terminals 8 Copper Tube Cutter 18 Hoist for Indoor Unit 9 Brazing Kit 19 Ammeter 10 Hexagonal Wrench 20 Voltag...

Страница 14: ...high ceiling the warmed air will remain near the ceiling during heating operation Thus a parallel installation of a circulator is recommended 9 Do not install the indoor unit where airflow from the air outlet blows directly onto temperature detection devices such an alarm device or a control device It can result in false readings and an alarm failure 10 When installing the IR receiver kit optional...

Страница 15: ...ion bolts with support plates as required in preparation for an earthquake Refer to the Safety Section for more information Use field supplied M10 suspension bolts and support plates For Wooden Beam For Concrete Slab Install the indoor unit to the tie beam for single storied building or to the second floor girder for two storied building and use sufficiently strong squared timber as shown below in...

Страница 16: ...low 5 3 Working Procedures The optional decorative panel can become deformed if any one of the unit suspension brackets are not installed correctly If the unit is not level condensation can form and settle due to gaps and escaping air between the unit and the decorative panel NOTICE NOTE If a false ceiling is already in place determine the proper pathway for piping and electrical lines before the ...

Страница 17: ...ory 3 Mounting Nuts and Washers Place nuts and washers onto the suspension bolts before installing the indoor unit NOTE Make sure to use washers accessories for installing the suspension bolts to the suspension brackets Install the washer with the insulation side facing down for suspended installation applications This way the washers themselves remain in position on the suspension bolts during th...

Страница 18: ...below and maintain the mounting position of the unit in accordance with Step b The pattern board template for the installation and the checking scale are printed on the packing Cut off the checking scale for the dimension of the opening from packing to adjust the position of the indoor unit a For False Ceiling Applications When installing the indoor unit to the false ceiling with an opening check ...

Страница 19: ...s 47 5 0 mm If not correct adjust the distance by using the scale of the pattern board template while maintaining the vertical alignment of the indoor unit 2 See that the securing screws for the panel are tightened Tighten the securing screws for the panel until they touch the stopper to the suspension bracket NOTE Pay attention to the distance between the indoor unit and the false ceiling If ther...

Страница 20: ...pe with dry compressed air or nitrogen to remove this residue before making pipe connections 6 1 Piping Materials 1 Tolerances of refrigerant piping lengths depend on the combinations with the outdoor unit Refer to the Installation and Maintenance Manual for the outdoor unit 2 Select the piping size from the following table For details of refrigerant piping work vacuum pump and refrigerant chargin...

Страница 21: ...nds at three locations along the pipe Accessory Secure the vinyl tape position at the vertical part Insulation for Refrigerant Pipe Accessory Securely fasten cable bands and the vinyl tape in order to prevent the accumulation of moisture Unit Side Insulation Material Factory Supplied Insulation for Refrigerant Pipe Field Supplied Refrigerant Pipe Field Supplied Check for any gaps between the indoo...

Страница 22: ...oid sloping the condensate pipe upward as this impede drainage Moisture can settle back into the unit and it cause water leakage when the unit operation stops Do not connect condensate piping with sanitary or sewer lines or any other condensate pipe When the main condensate pipe is connected with other indoor units the connected position of each indoor unit must be higher than the main pipe The pi...

Страница 23: ...tion has stopped Hose Clamp Accessory Tightening Torque 2 2 2 6 ft lbs Condensate Pipe Connection Condensate Hose Accessory Max 11 13 16 inches 1 1 8 inches Elbow or Vinyl Chloride VP25 Vinyl Tape Field Supplied Use PVC Transparent for Checking Drainage 13 16 3 16 inch 1 25 to 1 100 Downward Slope Min 3 15 16 inches 100mm higher as possible Main Condensate Piping Min VP30 Use PVC with VP25 This co...

Страница 24: ...ndensate piping and drained at the pipe end and that no moisture leakage occurs If the end of the condensate pipe cannot be checked visually pour another 50 to 67oz 1 5 to 2 liters of water into the condensate pan If the water overflows from the condensate pan there might be something wrong inside the condensate pipe Inspect the condensate pipe 1 25 to 1 100 Downward Slope Min 3 15 16 inches 100mm...

Страница 25: ...silicon sealant Simplified Operation of Drain up Mechanism The following is a simplified operation procedure for the drain up mechanism Turn OFF the power supply Disconnect the service connector marked with green Turn ON the power supply and start the simplified operation for the drain up mechanism Turn OFF the power supply Reconnect the service connector NOTE Make sure to hold the connector part ...

Страница 26: ...at is being performed Tighten screws according to the following torque M3 5 0 9 ft lbs 1 2 N m M4 0 7 to 1 0 ft lbs 1 0 to 1 3 N m Secure all cables together with zip ties and seal the connecting hole against moisture and insects Run the electrical wiring through the connecting hole in the side cover when using conduit Secure the wired controller cable using the cable band inside the electrical bo...

Страница 27: ...ble length must not exceed 3281 ft 1000m Select the wiring size Ground Fault Circuit Interrupter GFCI in accordance with the regulations for each region the Installation and Maintenance Manual and the dedicated electrical circuit that must be used Outside of the indoor unit installation of the power supply wiring communication cable and wired controller cable should be spaced as far apart as possi...

Страница 28: ...e communication line Terminals A B 1 and 2 of TB2 If connected the printed circuit board PCB is destroyed 7 Tightly clamp the power supply wiring and communication cables using the cable band inside the electrical box NOTE When standard wire is used for the field wiring connection use the M4 stranded wire When the single wire is used fashion it into the shape as shown at right and connect it in or...

Страница 29: ...ler connections between different refrigerant systems a Wired Controllers at each unit for an individual operation setting b Single Wired Controller for an individual operation setting Outdoor Unit A B Outdoor Unit Indoor Unit Indoor Unit Indoor Unit Indoor Unit A B A B A B Individual Simultaneous Thermo ON OFF individually Individual Wired Controller Wired Controller Wired Controller NOTE Thermo ...

Страница 30: ...the wired controller Remote ON OFF function settings No 1 2 and 3 External Input Output Function Power supply ON OFF functions No 1 and 2 Function Selection Prohibiting the wired controller after manual stoppage External Input Output Function Group setting by the centralized controller b The combination of twin triple or quad is controlled by a single wired controller c The address for the indoor ...

Страница 31: ...oor units by a single wired controller Connections for 17 or more indoor units are not possible 2 Individual louver setting is NOT available with two wired controllers Individual Louver Individual Louver Individual Louver Individual Louver Individual Louver Wired Controller Maximum 16 Indoor Units Individual Louver Individual Louver Wired Controller ...

Страница 32: ...e set on only the main wired controller The sub wired controller is for display only I U with Motion Sensor The communication cable for the wired controller I U with Motion Sensor I U with Motion Sensor I U with Motion Sensor Wired Controller Wired Controller Main Setting is Available I U with Motion Sensor I U with Motion Sensor Wired Controller Sub Setting is not Available 4 The outdoor unit mod...

Страница 33: ...o the sensor Where static electricity or electromagnetic waves may generate Where interference of infrared light such as gasses or mist is in the detecting area Where the lens for the sensor is exposed to high temperature and humidity for a long time Where fluid or corrosive gases exist Where light such as sunlight or direct light affects the sensor Where hot air from a heater or something similar...

Страница 34: ...lose proximity with other components e After all wiring is complete exercise caution when reinstalling the electrical box Install and secure all electrical wiring correctly through the opening to the terminal blocks using the cable bands provided Wiring should be spaced appropriately and firmly fastened to ensure against electrical short circuit sparks and flame Electrical Box PCB Terminal Block W...

Страница 35: ... 5 Unit Model Code Setting DSW4 No setting is required It is for setting the model code of the indoor unit 8 6 DIP Switch Settings 1 Turn OFF the power supply to both indoor and outdoor units before adjusting DIP switch settings Otherwise the settings are invalid and do not take effect 2 Positions of DIP Switches on the PCB are shown below 1 2 3 4 5 6 ON OFF 1 2 3 4 5 6 ON OFF DSW6 Tens Digit Unit...

Страница 36: ...ch adjustments Otherwise the settings do not take effect NOTES The solid square symbol signifies the ON and OFF positions for DIP switches The diagrams show original factory settings When the unit number and the refrigerant system are set record the unit number and refrigerant system to facilitate maintenance and servicing activities afterward NOTICE 1 2 ON OFF 3 4 1 0 8 9 2 5 6 7 3 4 1 0 8 9 2 5 ...

Страница 37: ...door units stay on but don t run 8 9 Individual Louver Settings Number of Louver Outlets This setting is available only for the indoor unit adopting the individual louver The number of individual louvers louver outlet numbers 1 2 are changeable as shown in the following procedures The number of individual louvers can be set when each of the louver outlets louver outlet numbers 1 2 is set as the lo...

Страница 38: ...above is set as Number 1 and the other louver numbers are change clockwise automatically as shown at the right OK Individual Louver Setting 01 01 01 02 01 03 Select unit to set 01 04 Entr Rtrn Sel Back 2 1 Individual Louver Setting 01 03 Adjust air direction louver angle Sel Adj OK Entr Rtrn Back Change louver outlet number 2 1 1 2 Louver Outlet Setting 01 03 Yes No Sel Entr Rtrn OK Back 8 10 Cont...

Страница 39: ...s 1 one In this case 4 is displayed Press All to select all the indoor units connected to the wired controller OK Test Run Menu Input Output Thermistor Selection Function Selection 01 03 Test Run Entr Rtrn Sel Back Function 5 4 Press and select the item required to change 5 Press and change the setting 6 Press OK to display the confirmation screen 7 Select Yes and press OK The Test Run menu is dis...

Страница 40: ...vailable Available Automatic COOL HEAT Operation b8 Not Available Available Dual Setpoint r1 Not Available Available A Cooling Heating Changeover Temperature r2 o F o C 2 1 0 3 1 5 3 2 0 4 2 5 5 3 0 1 0 5 Setback Temperature Compensation During card key removal setpoint is setbacked r3 o F o C 4 2 5 5 3 0 6 3 5 7 4 0 8 4 5 9 5 0 10 5 5 1 0 5 2 1 0 3 1 5 3 2 0 Not displayed when fahrenheit o F is s...

Страница 41: ...tion for the setback function can be selected on the wired controller Refer to Function Selection by Wired Controller section for details OK Test Run Menu Input Output Thermistor Selection Function Selection 01 03 Test Run Entr Rtrn Sel Back Function 5 CN3 1 2 3 1 2 3 1 2 3 CN3 TB1 PSC 5RA Card Key No Voltage a Contact When the card key is inserted i e someone is in the room then the contact turns...

Страница 42: ...make the necessary connections 3 Apply power to the outdoor unit s at least 12 hours prior to operation of the system for preheating of the compressor oil 4 Verify that all DIP switch settings are correct Refer to Section 8 6 DIP Switch Settings 9 2 Test Run After all installation work is completed a test run should be performed 1 Check to ensure that stop valves gas and liquid for the outdoor uni...

Страница 43: ...indicator turns ON and the operation starts At this time a two hour OFF timer is set automatically c Press or select LOUV and select auto swing by pressing or The auto swing operation starts Check the operating sound at the louvers If abnormal sound is not generated press or again to stop the auto swing operation If abnormal sound is generated from the louvers remove the face panel and adjust the ...

Страница 44: ...ion of the motion sensor NOTE Refer to the operation manual for indoor unit settings setup of the motion sensor Motion Sensor Setting If Absent and Check Interval can be set 30 sec Motion Detection Detected Information Display for 30 seconds Communication Data Cycle 30 seconds 30 sec e Though temperature recordings by the thermistors are invalid during the test run phase the protection devices are...

Страница 45: ...d controller a loose or severed connection In this case verify Section 9 3 Alarm Code and perform the appropriate troubleshooting measures Consult with an authorized service engineer if the problem cannot be resolved at your end Unit Model Code The relationship between the unit model code and the unit model is shown in the table below Indication Unit Model F VRF System E Except Above Models Sel OP...

Страница 46: ...e 32 Incorrect setting of other indoor unit number Problem with a different indoor unit in the same refrigerant system Failure at the power supply defective PCB 35 Incorrect setting of indoor unit Indoor unit number duplicated in same refrigerant system 38 59 Problem with the outdoor unit Refer to the Installation and Maintenance Manual for the outdoor unit b0 System Incorrect setting for unit cap...

Страница 47: ... 2017 Johnson Controls Inc Code No LIT 12012965 Revised January 2018 P5417050 rev 1 ...

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