40KMC---N

INSTALLATION MANUAL

40KMC---N Split system Global cassette indoor unit

IR Remote Control

Room Controller

Zone Manager

The unit can be used with infrared Remote Control, with the Carrier Room Controller or Zone Manager. Infrared control installation instructions are contained in the unit instruction and maintenance manual. Remote controls intallation instructions are contained in the relevant manuals, supplied with the remote controls. The operation and maintenance instructions for the indoor unit and the installation instructions for the indoor and the outdoor unit are given in the manuals for each unit. These are supplied with the unit.

Contents

Page Dimensions and weight.... 2 Technical data... Technical data of electric heaters... Material supplied... 3 Operating limits.... Components required for a complete installation.. General information.... 4 Accessories.... 4 Warnings: avoid.... 5/6 Installation... 6/8 Refrigerant connections.... 9 Electrical connections... 10/14 Fresh air renewal and conditioned air supply to adjacent room.. 15/16 System configuration.... 17 Operating test, address switch and address selector.. 18 Fault code, button T: EMERGENCY and guide for the owner. 19
Indoor unit item number 50Hz with grille 40KMC012-7N 40KMC018-7N 40KMC024-7N 40KMC028-7N 40KMC036-7N 40KMC048-7N 40KMC060-7N Indoor unit item number 50Hz + electric heater with grille 40KMC112-7EN 40KMC118-7EN 40KMC124-7EN 40KMC328-7EN 40KMC336-7EN 40KMC348-7EN 40KMC360-7EN Indoor unit item number 60Hz with grille 40KMC012-3N 40KMC018-3N 40KMC024-3N 40KMC028-3N 40KMC036-3N 40KMC048-3N 40KMC060-3N

Sizes 60

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ENGLISH

Dimensions and weight

40KMC 012N - 018N - 024N

825 825
40KMC 028N - 036N - 048N - 060N
40KMC---7N Unit Frame / Grille assembly

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012 17,5 3

Technical data

Table I: Nominal data

POWER INPUT (WATT)

POWER INPUT (WATT) Heat pump Heating 231 Heating 3231
standard 40KMC012-7N 40KMC018-7N 40KMC024-7N 40KMC028-7N 40KMC036-7N 40KMC048-7N 40KMC060-7N

with electric heaters

40KMC112-7EN 40KMC118-7EN 40KMC124-7EN 40KMC328-7EN 40KMC336-7EN 40KMC348-7EN 40KMC360-7EN
Cooling only Cooling 231 Cooling 231

Cooling 231 Cooling 231

Heating 231 Heating 2231
Note: For power supply wire size and delay type fuses, refer to the outdoor unit installation instructions.
Table II: Technical data of electric heaters (if installed)
Electric heater capacity Supply voltage Max. current draw Control device Safety thermostat Power supply cables mm2 Recommended fuse (gL type) A kW V A

Heat pump 36

Cooling only 36
1.5 1.x 1.x 1.x 1.x 1.0 + + + + + + 1.0 1.x 0.x 0.x 0.x 0.400 (*) (*) (*) (*) (*) (*) 3N 3N 3N 3N 6.5 6.5 6.5 8.8 8.8 8.8 8.8 6,5 10.8 10.8 7.5 7.5 7.5 7.5 GMC electronic control N 1 Manual reset thermostat ST1 60C N 1 Manual reset thermostat ST2 100C 3 G 1.G 1.G 1.G 1.G 1.G 1.G 1.G 1.G 2.G 2.G 1.G 1.G 1.G 1.10

2 x 1.x 1.x 1.x 1.0

*In areas with a 2 kW limit for single-phase electric heaters it is possible to divide the power supply on two phases and neutral of a three phase supply with neutral. Use cable type H07 RN-F - 4G1,5 mm2 - 400V 2N ~
Table III: Material supplied
Description Installation instructions Owner's Manual Fresh air intake baffle

Quantity 1

Use Indoor unit installation Correct use Air renewal
Table IV: Operating limits
Cooling / Heating Main power supply Refer to outdoor unit installation manual. Nominal single-phase voltage 230V ~ 50Hz Operating voltage limits min. 198V max. 264V Nominal three-phase voltage 400V 3N ~ 50Hz Operating voltage limits min. 342V max. 462V 27C 230V-240V ~ 60Hz

Electric heater

Table V: Components required for a complete installation
Connection pipe Wall sleeve Wall cap Finishing tape Fastening tape Tube insulation Drain hose Sealer putty - Outdoor power supply cable - Electrical connecting cable between indoor and outdoor unit

Specification

40KMC 012N (1/2") 12.70 mm (Gas) / (1/4") 6.35 mm (Liquid) 40KMC 018N, 024N, 028N, 036N, 048N and 060N (1/2") 12.70 mm (Gas) / (1/4") 6.35 mm (Liquid)

PVC film

I.D. 16 - 17 mm H07 RN-F (60245IEC66), cable with synthetic rubber insulation and polychloroprene sheath. H07 RN-F (60245IEC66), cable with synthetic rubber insulation and polychloroprenesheath.

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General information

Unit installation

Read this instruction manual thoroughly before starting installation. This unit complies with the low-voltage (EEC/73/23) and electromagnetic compatibility (EEC/ 89/336) directives. Follow all current national safety code requirements. In particular ensure that a properly sized and connected ground wire is in place. Check that the voltage and frequency of the mains power supply are as required for the unit to be installed; the available power source must be adequate to operate all other appliances connected to the same line. Also ensure that national safety code requirements have been followed for the main supply circuit. Connection of the system to the mains power supply is to be carried out in compliance with the wiring diagram shown in the installation instructions of the external section. Connect indoor and outdoor units with field-supplied copper pipes by means of flare connections. Use insulated seamless refrigeration grade pipe only, (Cu DHP type according to ISO1337), degreased and deoxidized, suitable for operating pressures of at least 4200 kPa and for burst pressure of at least 20700 kPa. Under no circumstances must sanitary type copper pipe be used. Where necessary, use field-supplied 25 mm I.D. PVC pipe (not supplied) of appropriate length and with the correct thermal insulation for the condensate drain extension. After installation thoroughly test system operation and explain all system functions to the owner. Use this unit only for factory approved applications: the unit cannot be used in laundry or steam pressing premises. WARNING: Disconnect the mains power supply switch before servicing the system or handling any internal parts of the unit. Do not open the remote control to avoid possible damage. In case of malfunctioning contact a qualified service engineer. This installation manual describes the installation procedures of the indoor unit of a residential split system consisting of two Carrier manufactured units. Do not connect this unit to any other manufacturer's outdoor unit. The manufacturer declines any liability for system malfunction resulting from unauthorised system combinations. The manufacturer declines any liability for damage resulting from modifications or errors in the electrical or refrigerant connections. Failure to observe the installation instructions, or use of the unit under conditions other than those indicated in table Operating limits of the outdoor unit installation manual, will immediately invalidate the unit warranty. Failure to observe electric safety codes may cause a fire hazard in the event of short circuits. Inspect equipment for damage during transport. In case of damage file an immediate claim with the shipping company. Do not install or use damaged units. In case of malfunction turn the unit off, disconnect the mains power supply and contact a qualified service engineer. Maintenance of the refrigerant circuit must only be carried out by qualified personnel. All of the manufacturing and packaging materials used for this appliance are biodegradable and recyclable. Dispose of the packaging material in accordance with local requiremements. This equipment contains refrigerant that must be disposed of correctly. When disposing of the unit at the end of its operational life, take the unit to an authorised waste disposal centre, or to the original equipment dealer, for correct disposal.

Choosing the installation site
Positions to avoid: Exposure to direct sunlight. Areas close to heat sources. On damp walls or in positions that may be exposed to water hazard. Where curtains or furniture may obstruct free air circulation.
Recommendations: Choose an area free from obstructions which may cause uneven air distribution and/or return. Consider using an area where installation is easy. Choose a position that allows for the clearances required. Look for a position in the room which ensures the best possible air distribution. Install unit in a position where condensate can easily be piped to an appropriate drain.

Table VI: Accessories

Description
Electrostatic filter Active carbon filter Room Controller

Notes:

(1) (2)
A= mod. 012, 018, 024. Code
40GK-900---001-40 40GK-900---011-40 40GK-900---002-40 40GK-900---012-40 33MC-RC
B= mod. 028, 036, 048, 060. B
Air supply outlet obstruction kit Room Controller kit (Grouping) Zone manager kit (Zoning) Zone manager Infrared control kit (2)
40GK-900---003-40 40GK-900---013-40 33MC9002 33MC9001 33MC-ZM 33MC-MC

X X X X X

Not to be used on units equipped with electric heater. IMQ approved kit.

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Warnings: avoid.
. any obstruction of the unit air intake or supply grilles.
. exposure to direct sunshine, when the unit is operating in the cooling mode; always use shutters or shades. positions too close to heating sources which may damage the unit.
. exposure to oil vapours.
. connecting condensate piping to sewage system drain without appropriate trap. Trap height must be calculated according to the unit discharge head in order to allow sufficient and continuous water evacuation.
. installation in areas with high frequency waves.
. only partial insulation of the piping. Non-level installation which will cause condensate dripping.

MAX 200 mm

. ascending sections of condensate drain piping. These may only be used near the unit with a maximum height difference of 200 mm from the top of the unit.
. flattening or kinking the refrigerant pipes or condensate pipes.
. horizontal sections or curves of condensate drain piping with less than 2% slope.

. excessive height difference between outdoor and indoor units (see installation manual of outdoor unit).

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. slack on electrical connections. disconnecting refrigerant connections after installation: this will cause refrigerant leaks.
. unnecessary turns and bends in connection pipes (see installation manual of outdoor unit). Excessive connection pipe length (see installation manual of outdoor unit).

Installation

Max. 2 louvres closed
Heat pump: louvre position for correct air flow Cooling: louvre position for correct air flow
Install the unit as centrally as possible in the room, the air flow direction can be controlled by means of the remote control (where used) or automatically, according to the operating mode (cooling or heating): this will ensure optimum distribution of the air in the room. During cooling mode operation the best position for the deflecting louvres is one which allows air diffusion close to the ceiling (Coanda effect). In heating mode, the louvres should be positioned so that the air is directed towards the floor, in order to prevent layers of hot air forming in the upper part of the room (this will happen automatically when the deflecting louvres are positioned in the AUTOMATIC mode). Alternatively the louvres can be placed in intermediate positions (with infrared control only) or allowed to move continuously (SWING).
In order to allow easy and rapid installation and maintenance, make sure that in the selected position it is possible to remove the ceiling panels or, if the ceiling is constructed using masonry, that access to the unit is guaranteed.
ATTENTION: Only restrict the air outlets as indicated in the drawing.
WARNING: To close one or two air outlets use the special kit.

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Prior to installation
Threaded hangers "T" bar (to be removed)
It is advisable to place the unit as close as possible to the installation site before removing it from the packaging. The grille panel and the remote control are separately packed for maximum protection. IMPORTANT: Do not lift the unit by the condensate drain discharge pipe or by the refrigerant connections; hold it by its four corners only. Unit installation will be facilitated using a stacker. If plaster board ceiling panels are installed the maximum dimensions of the unit housing must not exceed 660 x 660 mm (for models 12-18-24) and 900 x 900 mm (for models 28-36-48-60). In rooms with high humidity, brackets should be insulated using the self adhesive insulation supplied.
First position the refrigerant lines, as described in the chapter Refrigerant connections. Remove the T bar in order to facilitate installation operations.

Suspension brackets

Carefully lift the unit (without the frame) using the four suspension brackets (or the four corners), inserting it into the false ceiling. If the T bar cannot be removed the unit may need to be tilted (this operation may only be carried out with false ceilings with a minimum height of 300 mm).
Mark the position of the hangers, refrigerant lines and condensate drain pipe, power supply cables and remote control cable (see dimensions); the cardboard template (supplied with the kit) may be of assistance for this operation. Depending on the type of ceiling the hangers can be fixed as shown in the drawing.
False ceiling Spirit level
Nut Wooden frame Threaded hangers Washers Nut
Washer Threaded hangers Washer Nut Nut
Once the threaded hangers have been positioned, do not tighten the nuts, and insert the washers as shown in the drawing.
Align and level the unit by adjusting the nuts and locknuts on the threaded hangers, maintaining a distance of 25 - 30 mm between the sheet metal body and the underside of the false ceiling. Reposition the T bar and align the unit in relation to the bar by tightening the nuts and locknuts. After connection of the condensate drain line and the refrigerant lines, carry out a final check to make sure that the unit is level.

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Indoors Outdoors

Frame support brackets

Making the hole for connection pipes in the external wall After positioning the units and determining the connection position, make a 70 mm hole in the wall. The same hole can be used as a condensate drain pipe conduit. The hole should have a 5 - 10 mm slope toward the outside. Insert the plastic conduit provided. Pass the power connection cables through the conduit (see electrical connections).
Installation of grille/frame assembly Carefully unpack the assembly and check for damage sustained in transport. Attach the assembly to the unit by using the two hooks.

Condensate drain pipe

Power connection cables from frame Power connection cables from unit Safety cord Cable clamp Frame support screws
Tighten the four screws, link the electrical connectors and insert the wires in the cable clamp. Use the screws supplied to fix the frame in position.

Once all connections have been completed, check for leaks using soapy water. Finally, wrap connections with anti-condensate insulation and tighten with tape, without exerting excessive pressure on the insulation. Repair and cover any possible cracks in the insulation.
Extra charge of refrigerant (for R-410A only)
With pipe lengths up to 8 metres, the models shown below need an extra charge of refrigerant (R-410A). For longer pipes, refer to the outdoor unit installation manual.
Indoor unit model Outdoor unit model Pipe lengths up to 8 m 40KMC024N 40KMC124EN 38GL024G 70 g 40KMC018N 40KMC118EN 38YY018G 110 g
Flare end must not have any burrs or imperfections. The length of the flared walls must be uniform.

Checking

Lubricate the end of pipe and the thread of the flare connection with anti-freeze oil. Tighten by hand and then use two wrenches to tighten all connections fully, applying the tightening torque shown in the table.
Pour several litres of water into the condensate drain pan and check that it flows freely to the drain. Check pipe gradient and look for possible obstructions.

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Electrical connections

CA CLR

C G CV

CLR CA

CONTROL PANEL mod. 12 - 18 - 24
CONTROL PANEL mod. 28 - 36 - 48 - 60
Condenser (under main terminal board) Ground connection screws GMC board Outdoor unit connection terminal board
Relay board (only on models with electric heater) Transformer Holes for fixing panel in position Emergency push-button

CV CLR CG CP CA

Fan connector LED/RECEIVER connector Float connector Pump connector Louvre connector
A. Electric heater supply connection B. Outdoor unit connection
Control panel can be reached by opening the grille and removing its metal cover by 4 screws.

SYSTEM CONFIGURATION

IMPORTANT: Make ground connection prior to any other electrical connections. If the is fitted with an electric heater, this must have a separate power supply. Make the electrical connections between units prior to proceeding to the main supply unit connection. According to the installation instructions, the disconnecting switches from the mains power supply should have a contact gap (4 mm) such that total disconnection can be ensured under the conditions provided for by overvoltage class III.

IMPORTANT for units equipped with electric heater: The unit is equipped with two thermostats: one with automatic reset and one with manual (electric) reset that can be reactivated by switching the power supply off and then on.
Make sure the electric heaters power supply cable is fixed as shown in the figure CABLE PASSAGE (see page 14). Make certain that the YELLOW/GREEN cable is stripped back further than the others.

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Cooling only - 40KMC012N

Y O W2

WARNING: The ground wire for the indoor unit-outdoor unit connection cable must be clamped to a soft copper tinplated eyelet terminal with M4 screw hole.
Indoor and outdoor units interconnection (mm2) Model 40KMC012N GND L 3G2.5 N N Y 3G2.5 GND O W2 -
Indoor and outdoor units interconnection (mm2) Model 40KMC012N 40KMC012N connected to a multisplit unit GND L 4G2.5 4G1 N Y O W2 -

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Heat pump - 40KMC012N
Indoor and outdoor units interconnection (mm2) Model 40KMC012N GND L 3G2.5 N N Y 3G2.5 GND O 2x1.5 W2
Indoor and outdoor units interconnection (mm2) Model 40KMC012N connected to a multisplit unit

10 100

Terminal box legend, all models
L N N Y O W2 Earth Live power supply Neutral power supply Neutral connection indoor/outdoor unit Compressor interlocking contact Reversing valve control Outdoor fan signal
Power supply cable (H07 RN-F) Interconnection cable (H07 RN-F) Interconnection cable (H07 RN-F) Interconnection cable (H07 RN-F) Interconnection cable (H07 RN-F)
Notes: See outdoor unit installation manual. For correct passage of cables, please refer to the drawing shown at the end of this section.

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Cooling only - 40KMC 018N, 024N, 036N, 048N, 060N

O W2 S

Indoor and outdoor units interconnection (mm2) Model 40KMC 018, 024N 40KMC 036, 048, 060N GND R 4G1 C Y O W2 Disconnected S
Heat pump - 40KMC 018N, 024N, 036N, 048N, 060N

R C Y O W2 S

Indoor and outdoor units interconnection (mm2) Model 40KMC 018, 024N 40KMC 036, 048, 060N 40KMC 018, 024N combined with Multisplit

R 3G1 3G1

O 4x1 3x1
R C Y O W2 S Earth Live connection indoor/outdoor unit Neutral connection indoor/outdoor unit Compressor interlocking contact Reversing valve control Outdoor fan signal Defrost end signal

Interconnection cable (H07 RN-F) Interconnection cable (H07 RN-F) Interconnection cable (H07 RN-F) Interconnection cable (H07 RN-F)

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Wiring diagram - Cooling only or heat pump units with electric heater
LEGEND FACTORY WIRING FIELD WIRING CONNECTOR TERMINAL ON COMPONENT TERMINAL ON STRIP NORMALLY CLOSE CONTACT NORMALLY OPEN CONTACT CAPACITOR SENSOR TRANSFORMER
FAN CAPACITOR SAFETY MICRO FLOAT INDOOR FAN MOTOR DRAIN PUMP TRANSFORMER LED/IR BOARD CONNECTOR FLOAT CONNECTOR FAN MOTOR CONNECTOR LOUVRE MOTOR CONNECTOR PUMP CONNECTOR LOUVRE MOTOR MICROSWITCH LOUVRE RELAY BOARD ELECTRIC HEATER SAFETY THERMOSTAT IF PRESENT LIVE POWER SUPPLY NEUTRAL POWER SUPPLY
FS IFM PS T C1 C2 C3 C4 C5

LM MSL

PCB HTR ST

WIRE COLOURS

BROWN BLUE BLACK GREY YELLOW/GREEN

ORANGE RED

A/C COOLING ONLY H/P HEAT PUMP 60Hz Special Exsport Market

C G Y-G

W WHITE Y

YELLOW

NOTE: THE ELECTRIC HEATER POWER SUPPLY CABLE MUST BE OF THE 5G2.5 H07 RN-F TYPE.
IMPORTANT THE WARRANTY WILL BE INVALIDATED, IF FACTORY WIRING AND SETTINGS ARE FIELD-CHANGED.

Cable passage

Power supply cable Interconnection cable Interconnection cable Electric heaters power supply cable (optional) Room Controller/CZM connecting cable (optional) Refer to the control manual.

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Fresh air renewal and conditioned air supply to an adjacent room E N G L I S H

105 120

Model A mm B mm C mm
012N-018N-024N 028N-036N-048N-060N
Duct connection flange Clip 6 mm neoprene gasket Insulated flexible duct Fresh air intake Conditioned air supply to an adjacent room Polystyrene partition Baffle Frame

Air intake grille

Wall Undercut door Wall-fitted grille Door-fitted grille
Side knockouts allow connection of fresh air inlet ducts and ducts to deliver conditioned air to an adjacent room. Remove the external prepunched anti-condensate insulation and take away the knockout panels using a punch.
Use locally purchased material, suitable for operating temperatures of 60 C (continuous). Conduits can be of flexible polyester (with spiral core) or corrugated aluminium, externally covered with anti-condensate material (fibre glass from 12 to 25 mm thickness). To complete the installation, all non-insulated ducts must be covered with anti-condensate insulation (ex. expanded neoprene, 6 mm thickness). Not observing of these instructions may cause condensate dripping; the manufacturer will not be held responsible for any damage caused. The two prepunched side knockouts must not be used at the same time to deliver conditioned air to an adjacent room. The return and supply duct lengths can be calculated in accordance with the air distribution to an adjacent room and fresh air renewal diagrams (also taking into account the pressure drop through air diffusers, grilles and fresh air filters), as well as the increase in noise caused by these ducts.

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System configuration
The unit settings are made at the factory (refer to the specific instruction sheet). In the case of system installation other than the original one (as referred to in the specific instruction sheet) the factory configuration must be changed. Such operation must be performed by the installer as follows: ENGLISH
Multisplit/T-Kit configuration
Check all electrical connections (instructions and wiring diagram). Insert the batteries into the remote control and leave it OFF. Energise the system, turning the power supply ON. and buttons of the infrared remote control and Press the hold them pressed for more than 5 seconds. The display will be cleared, the time segments will display the first configuration item (rAdr = remote address) and the temperature segments will display the default value of this configuration item (Ab = control of both indoor units). button until will appear GFdn on the display. Push to change the default value 1 into Through the buttons and 239 for T-KIT configuration or 240 for MULTISPLIT configuration. Press the button to send the configuration to the unit, which will confirm with a beep. button to exit from this configuration menu. Press the
Cooling only configuration (of the system)
Check all electrical connections (instructions and wiring diagram). Insert the batteries into the remote control and leave it OFF. Energise the system, turning the power supply ON. and buttons of the infrared remote control and Press the hold them pressed for more than 5 seconds. The display will be cleared, the time segments will display the first configuration item (rAdr = remote address) and the temperature segments will display the default value of this configuration item (Ab = control of both indoor units). repeatedly until UCFG is displayed. Press button Press either the or button to change the default value (HP) to the new value (CO). button to send the configuration to the unit, which Press the will confirm with a beep. button to leave the configuration menu. Press For other available configuration options, see table VII.
Note: When 30 seconds have elapsed and no buttons have been pressed, the remote controller will automatically exit the configuration menu and the procedure has to be restarted.

Cooling only configuration (of the remote controller)
Insert the batteries into the remote controller and leave it OFF. and buttons of the infrared remote control and Press the hold them pressed for more than 5 seconds. The display will be cleared, the temperature segments will display the first configuration item (CH = remote address) and the time segments will display the default value of this configuration item (Ab = control of both indoor units). repeatedly until rc is displayed. Press button button to change the default value (HP) Press either the or to the new value (CO). Press the button to send the configuration to the unit, which will confirm with a beep. button to save the new remote control configuration. Press For other available configuration options, see table VIII. Note: When 30 seconds have elapsed and no buttons have been pressed, the remote controller will automatically exit the configuration menu and the procedure has to be restarted.
Heat pump configuration (of the system)
Check all electrical connections (instructions and wiring diagram). Insert the batteries into the remote control and leave it OFF. Energise the system, turning the power supply ON. and buttons of the infrared remote control and Press the hold them pressed for more than 5 seconds. The display will be cleared, the time segments will display the first configuration item (rAdr = remote address) and the temperature segments will display the default value of this configuration item (Ab = control of both indoor units). repeatedly until UCFG is displayed. Press button or button to change the default value (CO) Press either the to the new value (HP). Press the button to send the configuration to the unit, which will confirm with a beep. button to leave the configuration menu. Press For other available configuration options, see table VII.

Table VII

Item Shown on display
5 rAdr UCFG UAdr ZONE GFdn

Options

A: remote unit A b: remote unit B Ab: remote units A and B HP: heat pump AC: cooling only 1-240 with increase of 1 1-240 with increase of 1 1-240 with increase of 1 OF: The unit remains OFF On: Unit automatic restarting
Remote address indoor unit A. See paragraph "address selector" Remote address indoor unit B. See paragraph "address selector"
Default address is both indoor units. Refer to the specific instruction sheet Unit CCN address (Carrier Confort Network) Default = 1. Number of zone. Default = 0. Default = 1. (Monosplit systems) 39 = configured as T-kit = configured as multisplit 2 Choose of operating mode after a power supply interruption. Pre-arranged "ON".

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Operating test, address switch and address selector

Table VIII

Shown on display

CH tU rc Hr Cr CL

A: unit A b: unit B Ab: units A and B C: Degrees Celsius F: Degrees Fahrenheit HP: heat pump CO: cooling only 17 32: 17C 32C 63 90: 63F 90F 17 32: 17C 32C 63 90: 63F 90F 12 : 12: hour clock (AM/PM) 24 : 24: hour clock
Address indoor unit A. See paragraph "address selector" Address indoor unit B. See paragraph "address selector" Default address is both indoor units. Temperature. Default is C. Default address is heat pump. Change address for cooling only. Heating temperature range C min. and max. Heating temperature range F min. and max. Cooling temperature range C min. and max. Cooling temperature range F min. and max. Time format (AM = morning; PM = afternoon). Default is 12 : 12. NOTE: If the HR is set to a value that is lower than CR and the remote control operating mode is auto, the operating mode is set to cooling.
NOTE: If the selection is changed from rc (HP operation) to cooling only and the remote control operating mode is auto or heating, the operating mode is set to cool.

Operating test

Perform the operating test after the units have been installed in position and the gas leak test has been completed. Check all electrical connections (instructions and wiring diagram). Insert the batteries into the remote control and leave it OFF. Energise the system, turning the power supply ON. and buttons of the infrared remote control and Press the hold them pressed for more than 5 seconds. The display will be cleared, the time segments will display the icon (Src = service test). This procedure is used to check the operation after unit installation. Press the EMER. button continuously for 5~10 seconds. The unit will now be in Test Mode. Press the EMER. button once more after checking, to activate the remote control. If there is any input signal (remote control signal or EMER. button press) during test operation, the TEST mode will change to the input signal mode. The setting conditions of the test operation are as follows: - Operating mode: COOL - Fan speed: HIGH - Timer mode: Disabled - Discharge air direction: SWING NOTE: Indoor fan speed will be "HIGH" in Test operation. The swing motor will operate when the indoor fan is operated. Operate the unit in accordance with the Owner's Manual and check the following: a. Indoor unit. - Do all switches operate normally? - Does each light come on normally? - Do the horizontal louvres operate normally? - Is the drain correct? b. Outdoor unit. - Is there any abnormal noise or vibration during operation? - Is there any gas leakage?
Remote control - Remove the lid of the battery case. - Assign the address switch of one remote control to B. - Press the RST button with a sharp object. Indoor unit - Turn off the unit and pull out the power plug. - Remove the front panel and terminal block cover. - Assign the address switch of one indoor unit to B. After test has been completed, press menu. button to leave the test

This is used by qualified personnel only. Can be used when the remote control is lost or inoperative. Use a screwdriver to press the push-button through the metal protection grill. Emergency operation: When the unit is in the OFF mode and the T button is pressed for 5 seconds, the unit will operate as follows: Automatic mode Temperature preset to 22C Automatic fan speed Louvres set automatically according to the operating mode OFF timer

Table IX: Fault code

4 6* 13
Room air sensor fault Condensate discharge pump Indoor unit coil sensor fault Filter dirty Outdoor unit failure EEPROM corrupt Card serial number damaged Address / zone incomplete Gas flow distributor corrupt
When a signal is received by the remote control, the unit operates accordingly.

* with enabled code

TEST operation: Is exclusively used by service personnel to test unit operation. The test procedure is activated via the remote control.

Guide for the owner

When installation and tests are completed explain the Operation and Maintenance Manual to the owner, with particular attention to the main operating modes of the air conditioner, such as:
Turning the unit on and off. Functions of the remote control. Leave the two installation manuals for the indoor and outdoor units with the owner for future use during maintenance operations or for any other needs.

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L010127H26 - 1205
Via R. Sanzio, 9 - 20058 Villasanta (MI) Italy - Tel. 039/3636.1
The manufacturer reserves the right to change any product specifications without notice. December, 2005. Printed in Italy

40KMC------301 40KMQ------301

OWNERS MANUAL

40KMC------310/ 40KMQ------310 Split system Global cassette indoor unit

IR Remote Control

Room Controller

Zone Manager

The unit can be used with infrared Remote Control, with the Carrier Room Controller or Zone Manager remote control. Carrier Room controller control instructions are contained in the present manual. Infrared Remote and Zone Manager controls instructions are contained in the relevant manuals. The installation instructions for both the indoor and the outdoor unit are given in the manuals for each unit.

Contents

Page General information... System description... Unit LEDs and controls... Periodical checks... Optimum comfort and minimum power consumption.. Correct cleaning... Before a long shutdown period... Room controller general information and characteristics.. Unit protection devices... Room controller wired control... Troubleshooting... 5 6/7 8

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ENGLISH
40KMC------310/ 40KMQ------310

General information

Unit operation and maintenance
Read this instruction manual thoroughly before using the unit. This unit complies with UL 1995 directive (Usa and Canada). Check that the main power supply voltage and frequency are as required for the unit; the power source must be sufficient to operate all other appliances connected to the same line. Also ensure that local building codes and NEC (National electrical code) requirements have been followed for the main supply circuit. To avoid personal injury or damage to unit,do not service until all power sources are shut down, locked out, and tagged out. Failure to do so could result in personal injury or unit damage. smell of burning) and call Carrier Service for further instructions. A routine maintenance should be carried out on the unit to check the correct operation of the electric connections and protection devices. Extraordinary maintenance operations must be carried out by specially trained personnel. Do not attempt to repair, move, modify or re-install the unit on your own. To avoid electric shock or fire make sure these operations are carried out by qualified personnel only. Contact the qualified service if one of the following events takes place: - hot or damaged power supply cable; - unusual noise during operation; - frequent operation of the protection devices; - unusual smell (such as smell of burning).

WARNING:

To prevent fire, explosion or injury, do not operate the unit near dangerous substances or esposed to lighting equipment. All operation and maintenance manuals must be carefully looked after and kept with the equipment, should the unit change owners. Check that local building codes and NEC (National electrical code) requirements for the installation have been followed. In particular, ensure that a properly sized and connected ground wire is in place. Only use the unit for factory approved applications: the unit cannot be used in laundry premises. Do not use damaged equipment. In case of malfunction, turn the unit OFF and disconnect the main supply. Disconnect the main power supply prior to any maintenance operations or prior to handling any internal unit parts. The manufacturer declines any liability for damage resulting from modifications or errors in the electrical or refrigerant connections, made during the installation, or from improper use of this equipment. This will invalidate the unit warranty conditions immediately. This unit will only work safely and correctly, if installed and tested by qualified personnel. Do not open the remote control to avoid possible damage. In case of malfunction contact a qualified service engineer. This unit contains moving parts. Ensure that these parts are kept out of the reach of children. Maintain the room temperature at general comfort conditions, especially when children, elderly or handicapped persons are present. In order to ensure correct use, the air conditioner must operate within the temperature limits indicated in the Operating Limits table, included in the Technical manual. Failure to observe these limits may cause unit malfunction or water leakage. In order to avoid electric shock, fire or injury, stop the unit and disconnect the safety switch in case of abnormal events (such as

Never operate unit without a lter or with grille removed. Damage to the unit or personal injury may result. WARNING: If air lter is not replaced in the unit, dust and dirt gather in air conditioner and operation becomes impaired. A mist or cloud of vapor may be emitted from the unit, when switching from a cooling operation to a reverse cycle heating operation. This will occur when the unit has been operating in cooling mode for awhile and then is switched to heating. The combination of the evaporated indoor coil condensate and the dry room air, may result in a cloud of vapor being emitted from the unit. There is no need for concern. Inspect equipment for damage during transport. In case of damage file an immediate claim with the shipping company. Non-routine maintenance of the refrigerant circuit must only be carried out by qualified personnel. All of the manufacturing and packaging materials used for this appliance are biodegradable and recyclable. Dispose of the packaging material and of the remote control batteries in accordance with local requirements. This equipment contains refrigerant that must be disposed of correctly. When disposing of the unit at the end of its operational life, take the unit to an authorised waste disposal centre, for correct disposal procedures.
The unit must always be switched OFF using the Room Controller. Do not switch OFF the split system by disconnecting the electric power supply.

System description

A. Outdoor unit B. Indoor unit C. Room Controller (if foreseen) 1. 2. 3. 4. Air return Air filters Air supply Operation indicator light and receiver of remote control signals (if foreseen) 5. Nameplate 6. Interconnecting tubing 7. Condensate drain (open)

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Unit warning lights and controls - Fault code
P : Green LED Q : Red LED R : Yellow LED S : Remote control signal receiver

Indoor unit LEDs

Information concerning indoor unit operation, timer status and diagnostic is given by 3 LEDs located on the unit. THE GREEN LED (P) shows the following conditions: - Fault codes (diagnostic); - During normal operation, the LED is lit. Once a failure occurs, the LED flashes at intervals of 0.5 seconds. The fault code is deduced from the number of times the LED flashes. Between one flash cycle and the next a pause of 5 seconds elapses. THE RED LED (Q) gives the following information: - During normal operation, the LED is OFF; - During defrost the LED is lit; - During the test for wired connection, the LED flashes at 0.1 second intervals. THE YELLOW LED (R) shows the operation in timer mode. During this operation the LED is lit. If the timer mode is active and the unit is immediately restarted after a stop, this LED flashes until a new signal is sent to the unit. In case the Room Controller is not working, obtain a qualified service personnel.

Fault code

Once a failure occurs with the indoor unit in operation, the green unit LED flashes at intervals of 0.5 seconds. The fault code is deduced from the number of times the green LED flashes, blocking unit operation. Between one flash cycle and the next one, a pause of 5 seconds elapses.

Table IX: Fault code

4 6* 13 14

Description

Room air sensor fault Condensate discharge pump Indoor unit coil sensor fault Filter dirty Outdoor unit failure EEPROM corrupt Card serial number damaged Address / zone incomplete Gas flow distributor corrupt Outdoor air thermistor

* with enabled code

Table II: Periodical checks

Indoor unit

Clean air filter (2) Clean drain pipe (2)
Every month Every 4 months

Every year

Outdoor unit
Clean outdoor coil from outside Clean outdoor coil from inside (2) Blow air over electric parts (2) Check electric connection tightening (2) Clean fan wheel (2) Check fan tightening (2) Clean drain pan (2)
For a good operation of the air conditioner it is recommended to carry out checks and maintenance as indicated. Recommended maintenance intervals may vary depending on the installation environment, e.g. dusty zones, etc.
(1) Increase frequency in dusty zones. (2) Operations to be carried out by qualified service personnel. Refer also to Installation Manual.

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Optimum comfort. - Correct cleaning - Before a long shutdown period
Optimum comfort and minimum power consumption Correct cleaning
Turn the unit OFF and switch the main supply OFF.
Keep room temperature at a comfortable level. Use only a clean, damp cloth and a mild detergent. Do not use flammable liquids, solvents or abrasive powders that may result in damage to the panels. Use only a dry cloth to clean the remote control.
Before a long shutdown period
Only open doors and windows when strictly necessary. Ask to clean the filter and replace it in the unit.
When cooling, avoid direct sunlight in the room: if possible, draw the curtains or close the shades. Do not obstruct the air intake or outlet of the indoor unit. Obstructions will cause a reduction in the air flow and the conditioning effect, resulting in unit malfunction.
Keep the unit in operation for half a day in the ventilation (fan only) mode in order to dry all internal parts.
Ensure that the air filters are clean. Ensure that the air distribution in the room is uniform by properly adjusting the air flow direction.
Switch the unit OFF and wait for at least 3 minutes before switching OFF the main electric supply.
Periodically clean the area surrounding the outdoor unit and the air intake, in order to avoid reduced air circulation. Keep heat sources away from the unit: panels may be damaged.
Clean indoor and outdoor units.

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Room controller general information and characteristics

Characteristics

Single unit operation: Ability to control one unit only. Grouping: Ability to control 2 to 6 units with one Room Controller. Operating modes: Off, Heat, Cool, Dry, Auto, and Fan only. ENGLISH

A = Display readout B = Increase temperature / change louvre setting button C = Decrease temperature / change louvre setting button D = Fan selection button E = Mode selection button
Fan speeds: Low, Medium, High, and Auto. Louver control: Auto and swing. Desired temperature: Range between 17 and 32 C (63 and 90 F). Room Thermistor Override: Allows to use air sensor located in the Room Controller instead of the one located into the unit. Diagnostics: Detects the fault of air sensor in the Room Controller. A1 shown on the screen indicates this anomaly.
Display of selected functions

up down

UP and DOWN buttons Buttons for raising or lowering the temperature or for selecting the AUTO or SWING louver mode.
Automatic Off Temperature selected / room temperature
Set temperature Operating position of the air louvre Fan speed
Heating Cooling Dehumidification only
Button for operation mode selection.
Button for fan or louvre selection.
Table I: Unit protection devices
System Type of protection
Cold draft prevention Heat pump Defrost cycle Indoor coil freeze protection Against frequent compressor cycling Indoor fan off Compressor off Compressor time delay Heating in heat pump mode Cooling Cooling or heating in heat pump mode During unit operation During unit operation At unit start-up or change of operating mode

Effect of protection

Indoor fan off

Operation mode

Heating in heat pump mode

When on

During unit operation
Cooling only and heat pump
WARNING: During heat pump operation the unit will undergo several defrost cycles to remove ice that might collect on the outdoor unit in very low ambient temperatures. In these cycles, the indoor fan will be automatically off and cannot operate until defrost cycle is completed.

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Room controller wired control

Power up

All segments of the LCD should be energized for five seconds. The mode, fan, louver, desired temperature and configuration information should be read from the EEPROM. If the EEPROM values are not valid, the following should be used as defaults. Operating Mode Fan Speed Desired Temperature F o C Louver Room Thermistor Override Cooling only vs Heat/Cool Remote = = = = = = = AUTO AUTO 72F F AUTO OFF Heat/Cool

AUTO, HEAT, COOL and DRY Modes:
ICONS Energized: Operation Mode ICON. Room Temperature if configured for Room Thermistor Override (operated by Room Controller), otherwise user selected temperature with the SET TEMP Icon. FAN/LOUVER Icon with the user selected Fan and Louver settings. Buttons available: All Buttons are available.
AUTO Automatic operation NOTE: The compressor and electric heater must be off for at least 30 Minutes, this time being necessary to pass from Heating to Cooling, or Cooling to Heating. This will prevent the system from switching between Heating and Cooling continuously.
Example of normal operation
When switched on, the control display appears.

Setting mode operation

MODE button
Pressing the MODE button will cause the mode to change. The MODE button must be released and then pressed again in order to change to the next mode. The active mode will always be lit in normal operation. Available modes to select are: Heat/Cool Remote: OFF, COOL, DRY, FAN ONLY, AUTO, HEAT COOL Cooling operation
Cooling Only Remote: OFF, COOL, DRY and FAN ONLY
When the MODE button is not pressed for 15 seconds, the next press will always switch the mode to OFF.

OFF Mode:

ICONS Energized: OFF Mode Room Temperature if configured for Room Thermistor Override, otherwise nothing Buttons available: MODE button

Drying operation.

HEAT Heating operation.

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FAN ONLY Mode:
ICONS Energized: Room Temperature if configured for Room Thermistor Override (operated by Room Controller), otherwise nothing. FAN/LOUVER Icon with the user selected Fan and Louver settings. Buttons available: MODE and FAN buttons are available. Low Medium High Automatic (Fan speed will automatically switch to the value required for optimum comfort). When this function is activated, the dotted symbols will flash. ENGLISH Auto mode setting will be displayed by blinking the fan Medium speed and High speed icons in order (Med then Hi then repeat).

Louver mode selection

fan only Ventilation operation only.
UP and DOWN button (Selecting the desired temperature)
Pressing either the UP or DOWN buttons will modify the desired temperature. The maximum desired temperature is 32C (90F) and the minimum desired temperature is 17C (63F). Whenever the setpoint is being displayed, the SET TEMP icon is illuminated. Whenever the display mode is changed from C to F, the setpoint is set to the default start-up values of 22C for C mode and 72F for F mode.
To enter louver mode selection, make sure the Room Controller is on and hold the FAN button down for 5 seconds. After 5 seconds, the selected louver setting will be displayed. By pressing the up and down buttons the user can modify the louver desired configuration. The two settings will be displayed in the following way: S with Swing Louver Icon - represents Swing Louver. A with Auto Louver Icon - represents Auto Louver. Press FAN button to exit LOUVER Mode Selection. This mode will exit automatically after 10 seconds if no buttons are pressed. The only way to change the operation mode, is to go back to this menu.

NOTE: If units are grouped to one Room Controller , all units will end up having the same louver value. Louver Mode selection is not available during OFF mode.
If the air sensor built in the Room Control is enabled, the display will indicate the room temperature after few seconds.
Automatic louvre positioning to the best position for the selected operating mode.
FAN button (Adjusting the ventilation speed)
Pressing the FAN button will cause the fan speed to change. The FAN SPEED button must be pressed and then released to reach the desired speed (Low, Medium, High or Auto). The icon on the display indicates that change has occurred.

:SWING

Louvres swing continuously.

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Troubleshooting
No Room controller LCD display: Mis-wiring of the 12 volt power to Room Controller control; verify that + 12 V and Ground are connected to the proper terrminals of the Controller (Reference Installation wiring section for correct connections): after disconnecting the power, correct the wiring problem and re-cycle power. Power not online; check that the units main power is connected. The main control board should be operating normally: after verifing the wiring to the Room Controller, re-cycle the unit power. No 12 volts between P and G of terminal block; check the installation of the J6 plug on the main control board: after disconnecting the power, correct the wiring problem and re-cycle power. Note : Those verifications need to be carried out by qualified service, please refer to the installation instructions. Restart air conditioner after having corrected the faults. Q (Red LED) indicator is illuminated: In the heating mode, the LED switches on to indicate an active defrost condition. The unit emits unpleasant smells: Unpleasant smells can accumulate on the air filters and then be dispersed into the room during air conditioner operation. Switch the unit OFF and contact an authorised service centre to have the filters cleaned. Restart unit in the ventilation (fan only) mode and open windows to change room air. The unit makes strange noises: Occasionally the unit makes strange noises at start-up, during operation or when it has stopped. These are generally due to the effect of temperature changes on the plastic parts. Mist or Vapor Cloud emitted at start-up of Heating operation: A mist or cloud of vapor may be emitted from the unit, when switching from a cooling operation to a reverse cycle heating operation. This will occur when the unit has been operating in cooling mode for awhile and then is switched to heating. The combination of the evaporated indoor coil condensate and the dry room air, may result in a cloud of vapor being emitted from the unit. There is no need for concern. WARNING: (models with electric heaters): If the manual reset, thermal trip device cuts out, switch the unit OFF and ON again at the main switch to reset. If the malfunction persists, contact your local authorised dealer.

personnel only.

+12 volts applied to Room Controller at the correct terminals and still does not operate: The Room Controller is damaged; change the Room Controller and re-cycle power. Note: This operation needs to be carried out by qualified
Air conditioner will not start: The main switch is switched OFF, place the switch in the ON position. The fuses on the main switch are burnt out; replace the fuses.
( this operation need to be carried out by qualified personnel only).
Wait for 3 minutes: protection against frequent compressor cycling is ON. Selected temperature is higher than the room temperature (or lower in the heating mode). Air conditioner is not supplying enough cooling (or heating): Air cannot circulate freely. Dirty filter reduces air quantity circulating. Filter must be cleaned by skilled personnel only. Doors and/or windows are open. Fan speed has been set to low. Air flow direction is not correct for optimum ventilation. Selected temperature is not correct. A slight mist is emitted from the unit: A slight mist, coming out of the unit air outlet, is sometimes noticed during cooling operation. This is due to the cool air coming into contact with the room air. A slight whistling noise is heard when the air conditioner starts or stops: This is due to the refrigerant beginning to circulate or an adjustment of the refrigerant pressures. This is a normal operating condition. P (Green LED) indicator is flashing: System malfunction. Contact service organisation after having ensured that: Air circulation is not obstructed. Outdoor unit coil is not obstructed and causing severe reduction of air circulation. Condensate drainage tube is not obstructed. As regards fault codes to be communicated to the after-sales

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L010127H09 - 0306
Via R. Sanzio, 9 - 20058 Villasanta (MI) Italy - Tel. 039/3636.1
The manufacturer reserves the right to change any product specifications without notice. March, 2006. Printed in Italy