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Compact Horizontal Air-Air Heat Pump Model RTH-7K to 3K Ref.: Y-R719 7 Technical information E U R O V E N T CERTIFIED PERFORMANCE I S O 9 1 ER-8/1991 Clima Roca York S.L. is participating in the EUROVENT Certification Program. Products are as listed in the EUROVENT Directory of Certified Products, in the program AC1, AC, AC3, LCP and FC. The LCP program covers air condensed water chillers and heat pumps of up to 6 kw.

Index Page Page General information 3 - General description 3 - Nomenclature 3 Wiring diagram 1-1 - Microswitches configuration 15 Technical specifications 3 - Mechanical specifications 3 - Ambient thermostat DPC-1 3 - Physical data - Limits of Use 5 - General dimensions 5-6 - Nominal capacities 7 - Test conditions 7 - Correction factors 7 - Nominal flows 7 - Sensible cooling capacities 8-9 - Indoor and Outdoor fan services 1 - General characteristics 11 Control board 11 Accessories 16 - - Duct electric heaters for RTC/RTH-7 to 3K 16 - Technical specifications 16 - General characteristics 17 - Dimensions with packing and weights 17 - Installation 17 - Heater location 18 - Wiring diagram 19 - Tray heaters 1 - - General Information 1 - Technical Specifications 1 - Assembly 1 - Installation 1 - Wiring diagrams

General information General description The RTH model heat pumps are compact horizontal units, condensed by air, that allow air conditioning, both in winter as well as in summer, by inverting their operating cycle. They can be installed either indoors or outdoors, and the fans are of the centrifugal type, and thus accept air ducts. Nomenclature RTH 7 K 1 A Compact horizontal heat pump Nominal power: Cooling Heating 7 = 6 9 W / 8 W 1 = 9 W / 11 W 15 = 1 W / 1 5 W = 18 W / 18 W 5 = W / W 3 = 7 W / 7 5 W K = Version Power supply: 1 = 3.1.5 = 3.3.5 38 =.3.5 Manufacturing mode Technical specifications Mechanical specifications Compressor Of the vertical hermetic alternative type, mounted on shock absorbers and with internal motor protection. Includes an electric heater for heating the oil sump, which makes start-ups easier and avoids oil leaking from the compressor. Coils With a large surface, made of grooved copper tubing and notched aluminium fins. Fans Centrifugal with directly fitted motor or belt and pulley drive, depending upon the model. Have sufficient pressure for the installation of optional ducts and accessories. Casing Made of galvanised aluminium steel sheeting and finished with oven-polymerised powdered paint, for outdoor installation. The interior is lined with an insulation coating so as to avoid condensation and reduce noise levels. These units include galvanised sheeting trays with their corresponding drains for collecting condensates from the coils. Cooling circuit Made of welded copper tubing. The units are supplied with their optimum refrigerant loads and having gone through maximum pressure and air tightness tests. Both in the interior as well as exterior sections, the expansion of the refrigerant is carried out by means of calibrated and distributed holes. The circuit includes: four-way valve, suction accumulator, high and low pressure switches and suction and discharge pressure collectors. Refrigerant These units are manufactured in with R-7C. Electric panel Accessible directly from the exterior. Includes: connecting strip, protectors, electronic board and probes, power supply contactors, operating relay, phases control relay and transformer. In compliance with European standards in force. Phase control relay The electric panel of models RTHK, 5K and 3K introduces a sequence and phase failure detector. In the case of detecting a phase sequence other than R-S-T, or a phase fails once the unit is in operation, this detector, by means of an internal volt-free contact, disconnects power supply to the main board of the unit, leaving it inoperative. Electric heater (optional) Of the uncovered wire tipe for quick heat dispersion, avoiding temperature intertia that could affect components, equipped with thermal contacts and protectors, automatic switch and manual reste. Thermostat The RTH-7 to 3 units include, as standard equipment, the electronic DPC-1 thermostat. To connect the thermostat to the board, 1x.mm screened communication cable should be used. Ambient thermostat DPC-1 Programmable digital thermostat with communication This thermostat was designed to give close control of the ambient temperature and graphic information regarding the mode it is currently operating in. This control unit, in accordance with the differential between the programmed temperature and the ambient temperature, responds varying the on/off cycles. The liquid crystal display (LCD) normally indicates the ambient temperature, operating mode and whether the system is in heat or cool. It allows selecting different set point temperatures for cool and heat, besides choosing between C and F on the display. 3

Fan operation can be in continuous or automatic mode, off or in operation along with the compressor. Physical data Model RTH-7K RTH-1K RTH-15K RTH-K RTH-5K RTH-3K Amount 1 Compressor Indoor Outdoor coil Nominal power kw.7 3..7 5. 7.9 9. Power supply V.ph.Hz. 3.1.5 3.3.5.3.5 3.3.5.3.5 3.3.5.3.5 Amount 1 3.3.5.3.5 3.3.5.3.5 Tubing depth x height 5 x 18 5 x 1 5 x 1 5 x 1 5 x 5 x Front area m.3.1.51.65.71.87 Tubing diameter 3/8" Amount 1 coil Outdoor Tubing depth x height 3 x 18 x 1 x 1 x 1 3 x x Front area m..5.37.7.61.73 Tubing diameter 3/8" Amount 1 (1) Turbine diameter mm 7 3 3 3 3 3 fan motor Indoor fan motor Turbine width mm 7 3 3 Nominal power kw.58.99.99 1.1 1.1 1.5 Motor nominal r.p.m. 9 9 9 9 9 1 Power supply V.ph.Hz. 3.1.5 3.1.5 3.1.5 Amount 1 3.3.5.3.5 3.3.5.3.5 (1) 3.3.5.3.5 (1) Turbine diameter mm 7 3 3 3 3 Turbine width mm 3 Nominal power kw.38.5.95.99 1.1 1.1 motor nominal r.p.m. 9 9 9 9 1 1 1 1 Power supply V.ph.Hz. 3.1.5 3.1.5 3.1.5 3.3.5.3.5 3.3.5.3.5 3.3.5.3.5 Refrigerant load R-7C kg 1.93 3. 3.5 5.85 5.9 6.1 Dimensions with packing mm 11x1x61 119x15x69 135x11x69 167x161x99 176x18x78 181x16x78 Weight Nett kg 163 19 75/85 35 1 Gross kg 17 5 95/35 37 5 (1) Pulley drive (adjustable on the motor).

Limits of Use Voltage limits Air intake temperature to outdoor coil DB Air intake temperature to indoor coil Nominal 3 V Nominal V Minimum C Operating cycle Maximum C Minimum C Operating cycle Maximum C Minimum Maximum Minimum Maximum Cool Heat Cool Heat Cool WB Heat DB Cool WB Heat DB 198 5 3 36 19 - (1) 6 1 1 () 5 Notes: WB = Wet bulb. DB = Dry bulb. (1) At below - C, only the emergency electric heater (optional) remains operative. () This equipment can operate for a short period of time at a temperature below 1 C so as to increase the air temperature within the conditioned space to 1 C. General dimensions mm RTH-7K, 1K, 15K & K Note: 1- The solid arrows indicate the standard air intakes and outlets. The dotted arrows are the intakes and outlets that can be obtained at job site. Model A B C D E F G H I J K L M N O P Q R S T U V W X Y Z RTH7K 78 11 155 115 117 3 136 5 8 6 7,5 6 3 5 37 6 5 6 165 5 1 8 18 35 3 RTH1K 555 115 115 1 13 7 1 375 8 9 11 5 33 6 55 615 537 165 117 353 3 RTH15K 555 131 165 136 1 316 15 6 87 36 5 5 55 33 6 71 59 5 7 1 11 353 3 RTHK 585 157 155 16 1 316 1 75 85 36 5 8 77 7 6 95 697 6 875 15 1 5 353 3 7 5

General dimensions mm RTH-5K & 3K Note: 1- The solid arrows indicate the standard air intakes and outlets. The dotted arrows are the intakes and outlets that can be obtained at job site. Model A B C D E F G H I J K L M N O P RTH-5K 1 75 1 7 81 33 315 133 1 65 87 1 69 1 75 315 667 38 1 15 93 RTH-3K 15 1 13 99 68 138 5 89 1 71 1 77 73 368 1 95 13 6

Nominal capacities Unit Cooling capacity W Summer Consumption W Heating capacity W Winter Consumption W RTH-7K 6 9 3 6 8 RTH-1K 9 6 11 RTH-15K 1 6 9 1 5 RTH-K 18 7 6 18 RTH-5K 1 RTH-3K 7 1 3 7 5 8 3 7 5 6 9 7 5 1 9 Test conditions Summer Winter Voltage Outdoor temp. C Indoor temp. C Outdoor temp. C Indoor temp. C DB WB DB WB DB WB DB WB 3 or 35 7 19 7 6 1 Correcting factors Correcting factors for cooling capacities Correcting factors for cooling capacities in accordance with indoor and outdoor temperatures. Correcting factors for the heating capacities Indoor air intake temperature, C DB Outdoor air intake temperature, C WB 1 1 6-8 Indoor air intake temperature, C WB Outdoor intake air temperature, C DB 19 5 3 35 6 3 1. 1..96.77.58 1.5 1.1 1..8.69 17 1.3 1.13 1..83.63 3-1. 1.15 1.11 1.6 1 19 1.1 1.8 1. 1.96.9 1.88.86.8.8.79.7 Correction of the real temperature of intake air to the outdoor unit coil for flows that differ from the nominal values. Flow % 7 8 9 1 11 1 13 Note: For indoor unit intake temperatures DB between 1 and 3 C. WB - wet bulb. DB - dry bulb. Correction in C on real temperature of air intake of outdoor coil - -1.5 -.5.5 1 1. Cooling capacity correcting factors for flows that differ from the nominal flows of the indoor coil. Flow % Total capacity Sensible capacity Comp. absorbed power 8.96.95.98 9.98.973.99 1 1 1 1 11 1.16 1.38 1.9 1 1.3 1.75 1.17 13 1.6 1.118 1.5 Correction of the real temperature of air intake of the outdoor coil for flows that differ from the nominal values. Flow % 7 8 9 1 11 1 13 Correction in C on real temperature of air intake of outdoor coil 5 3 1.5-1 - -.5 Nominal flows The cooling and heating capacities that appear in the corresponding tables are valid for the following nominal flows: Model RTH-7K RTH-1K RTH-15K RTH-K RTH-5K RTH-3K Nominal flow indoor fan m 3 /h 197 3 3 85 5 5 85 Nominal pressure available Pa 5 37 5 5 6 6 Nominal flow outdoor fan m 3 /h 38 3 5 7 5 5 5 5 6 Nominal pressure available Pa For other flows, apply the correcting factors of the corresponding table. 5 5 5 5 5 5 7

Sensible cooling capacities Sensible capacity (W) Model Dry temperature, outdoor air C (DB) Humid temperature, air intake, C (WB) Total capacity Dry intake air temperature to coil, C (DB) 7 9 Compressor absorbed power W W W W W kw 8 8 77 3 581 5 38 6 3.7 5 19 7 5 3 861 966 6 6 7 5.38 17 6 9 5 33 6 8 6 9 6 9.9 7 659 7 3 376 5 33 6 137.57 RTH-7K 35 19 6 9 3 66 766 6 3 6 9.71 17 6 38 59 5 69 6 38 6 38.8 6 9 3 3 17 8 5 98.98 5 19 6 1 3 33 538 6 19 6 1 3.11 17 5 658 833 5 658 5 658 5 658 3.5 11 8 3 38 857 7 69 8 56.7 5 19 1 15 5 3 6 75 8 917 1 15.85 17 9 7 183 8 658 9 9.97 RTH-1K 35 1 3 3 11 576 6 789 8 6 3.7 19 9 957 6 3 8 6 9 3.3 17 8 68 6 57 7 93 8 68 8 68 3.39 5 9 788 63 6 76 7 951 3.56 19 8 6 65 6 119 8 33 8 6 3.7 17 7 78 6 513 7 78 7 78 7 78 3.88 5 16 8 985 7 399 11 13 37 3.99 19 15 1 8 17 1 31 1 5 15 1.18 17 1 11 5 13 619 1 1.37 RTH-15K 35 15 5 573 6 988 1 69 13 3.5 19 1 7 616 1 3 13 651 1.75 17 1 88 1 76 1 9 1 88 1 88.99 5 1 11 6 58 1 19 1 563 5.3 19 1 6 7 158 9 57 1 6 1 6 5.7 17 11 8 1 11 8 11 8 11 8 5.7 8

Sensible cooling capacities Sensible capacity (W) Model Dry temperature, outdoor air C (DB) Humid temperature, air intake, C (WB) Total capacity Dry intake air temperature to coil, C (DB) 7 9 Compressor absorbed power W W W W W kw 1 6 6 53 9 3 13 3 16 5.39 5 19 19 9 915 1 61 16 731 19.6 17 18 13 53 16 57 18 18.81 19 98 5 96 8 689 1 778 15 55.97 RTH-K 35 19 18 9 389 1 115 16 5 18 5.3 17 16 56 1 17 1 873 16 56 16 56 5.9 18 5 359 8 86 1 175 1 9 5.75 5 19 16 8 788 11 51 15 6 16 6. 17 1 76 1 1 1 76 1 76 1 76 6.8 7 366 1 1 55 17 95 6.63 5 19 1 816 1 93 13 739 17 99 833 6.95 17 1 673 17 59 7.6 6 79 9 585 13 838 16 67 7.5 RTH-5K 35 19 1 35 13 11 17 39 7.9 17 18 58 1 596 15 3 18 58 18 58 8.9 6 63 8 899 13 15 15 988 8.69 5 19 18 18 9 6 1 58 16 711 18 18 9.8 17 16 56 13 9 16 16 56 16 56 9.8 3 9 97 13 518 18 93 55 7.77 5 19 9 16 15 5 19 135 551 8 169 8.1 17 7 19 9 8 7 7 7 8.51 9 97 9 7 1 685 18 11 1 71 8.79 RTH-3K 35 19 7 1 7 18 311 3 77 7 9.5 17 8 17 7 88 8 8 9.7 7 8 18 11 759 17 176 787 1.18 5 19 3 13 761 17 37 788 3 1.6 17 1 17 37 88 1 1 11.1 9

Indoor fan services Outdoor fan services Model Available static pressure mm WG Pa Air flow m 3 /h m 3 /s Absorbed power W Model Available static pressure mm WG 1 Pa 98 Air flow m 3 /h m 3 /s.56 Absorbed power W 5 8 78. 1 615.5 395 8 78. 19.61 6 RTH-7K RTH-1K 6 1 8 6 1 1 58.8 39. 19.6 98 78. 58.8 39. 19.6 117.6 98 1 76 1 865 1 1 1 3 1 53 65 3 3 3 6.9.5.56.59.58.61.6.67.7.73.9 1. 3 1 3 33 7 55 373 8 5 518 969 99 RTH-7K RTH-1K 6 1 8 6 1 58.8 39. 19.6 98 78. 58.8 39. 19.6 98. 315 3 55 665 3 18 3 31 3 1 3 51 3 65 3 735 3 97.6.68.71.7.88.9.95.98 1. 1. 1.1 7 86 5 51 9 93 95 98 1 3 1 33 1 RTH-15K 8 6 78. 58.8 3 79 1.5 1.11 118 155 RTH-15K 8 6 78. 58.8 17 3 1.16 1. 17 11 RTH-K 16 1 1 8 6 39. 19.6 196 156.8 117.6 98. 78. 58.8 39. 19.6 7 17 19 3 6 15 35 36 38 55 55 61 71 1.13 1.16 1.15 1 1.1 1.96 1.1 1. 1. 1.6 1.8 1.31 178 187 1 1 9 98 1 5 1 8 1 11 1 1 1 17 1 5 1 RTH-K 16 1 8 6 1 39. 19.6. 156.8 98. 78. 58.7 39.1 19.6. 137. 5 5 635 1 97 5 1 5 1 5 317 5 8 5 55 5 1.3 1.6 1.9 1.3 1.38 1. 1.5 1.8 1.51 1.5 1.5 118 15 135 99 1 13 1 17 1 5 1 35 1 75 1 35 1 13 16 156.8 3 98 1.1 9 1 98 8 1.33 1 1 117.6 1. 1 5 8 78. 91 1.36 1 5 RTH-5K RTH-3K 1 8 6.3 16 1 1 6.3 98 78. 61.7 39. 19.6 156.8 117.6 98 61.7 39. 5 75 9 5 18 5 5 5 7 5 5 35 5 8 6 5 1.5 1.31 1.36 1.3 1.5 1.5 1.3 1. 1.8 1.61 1.68 1 1 1 16 1 1 9 1 35 1 39 1 1 365 1 3 1 585 1 68 RTH-5K RTH-3K 6 5.1 1 1 8 5.1 58.8 5 39. 19.6 137. 98 78. 5 39. 5 5 5 5 5 7 5 35 5 5 5 9 5 98 6 6 6 8 1. 1. 1.5 1.8 1.51 1.5 1.66 1.7 1.77 1.8 1 75 1 95 1 3 1 335 1 388 1 355 1 1 5 1 555 1 585 19.6 6 8 1.7 1 75 19.6 6 6 1.83 1 6 6 1.77 1 81 6 7 1.86 1 665 1

General characteristics Model Power supply V.ph.Hz. Fan Compressor Out. - Ind. Consumption A Compressor Outdoor fan Start Nominal Run Indoor fan Run Minimum power supply cable section () mm Automatic switch (K curve) (1) A RTH-7K 3.1.5 7 13 1.9 5 RTH-1K 3.3.5 9 9.6.5 5.3.5 3.1.5 5 5.5.5,5 RTH-15K 3.3.5.3.5 1 6 13.1 7.5 5. 5. 5.1 5.1 6 3 5 RTH-K 3.3.5.3.5 3.3.5.3.5 165 79 16.7 9.6.9.8 5.1.9 1 5 RTH-5K 3.3.5.3.5 3.3.5.3.5 17 77.5 1.9 5.1.9.9.8 1 5 RTH-3K 3.3.5.3.5 3.3.5.3.5 15 8 6.1 15 7..1.6.6 1 6 5 3 Important: Automatic switch dimensioning and power supply and operating line sections are orientative and should be corrected in accordance with conditions at job site, length between units and legislation in force. Notes: 1.- K curve (DIN, VDE 66-1)..- Based on copper conductors. Control board The control board of these units is common to both the cool only as well as the heat pump units. Equipment control is carried out by means of software that is resident in the board. The System operates in accordance with the position of the microswitches in the main board. There are also variations in the control algorithm, depending upon the accessories the board detects installed in the equipment. For further details please see Technical Information of the control board. 11

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Wiring diagram, RTH-1-15K,.3.5 13

Wiring diagram, RTH--5-3K,.3.5 1

Microswitches configuration, failures and incidents 15

Accessories Duct electric heaters for RTC/RTH-7 to 3 These duct electric heaters are designed to provide backup heat in the RTH units, and complementary heat in the RTC units. On and off cycles are governed by the air conditioning equipment control system. These should be fitted directly to the impulse outlet of the indoor section of the unit. Technical specifications These duct electric heaters include the following components: - Galvanised sheet casing, covers and supports. - Exposed nickel-chrome wire electric resistance mounted on steatite supports. General dimensions mm - Power supply contactor with a 3 V coil on one-phase heaters, and a V coil on three-phase heaters. - Two thermal switches located at the top of the heater. The first, with automatic reset, disconnects the heater when a temperature of 77 C is reached. The second, accessible externally and with manual reset, disconnects the heater when a temperature of 138 C is reached. - Interlock with the indoor fan thermal relay on models RTC/ RTH-, 5 and 3. The control system of the unit does not allow operation of the heater when the indoor fan thermal relay fails. - Plug-in connector for interconnection between the control panel of the air conditioning unit and the heater. - PVC gasket for heater-air conditioner joint and self-threading screws for fastening the accessory. Model A B C D E F G H I J RTC/RTH-7 and 1K 378 85 385 75 36 3 3-353 RTC/RTH-15 to 3K 57 55 31 7 35 9 38 7 15 1 16

General characteristics Power supply Model V.ph.Hz Power Consumption Stages Automatic switch (1) Q1 Power supply cable section () Front furface Pressure drop (3) kw A A mm m Pa RTC/RTH-7 3.1.5 5 1 5.1 6 RTC/RTH-7 & 1.3.5 5 8 1 1 1.5.1 6 RTC/RTH-7 & 1.3.5 1 15 1.5.1 6 RTC/RTH-15 to 3.3.5 5 8 1 1 1.5.1 6 RTC/RTH-15 to 3.3.5 1 15 1.5.19 15 RTC/RTH-15 to 3.3.5 15 1 5.19 15 Notes: 1.- K curve (DIN, VDE 66-1)..- Based on copper conductors. 3.- Considered the nominal air flow of the indoor section. Dimensions with packing and weights Heater model Height Dimensions with packing mm Width Depth Weight kg RTC/RTH-7 and 1 36 513 93 15 RTC/RTH-15 and 3 6 37 Installation Install the electric heater in the RTC/RTH unit as follows: 1) In all cases, the established national regulations should be followed. ) Disconnect the power supply to the air conditioning unit. 3) Install the magnetothermal and differential switches for the heater in accordance with the table of General Characteristics and the Wiring Diagrams. ) Remove the access panels of the RTC/RTH unit control box. 5) Unpack the accessory, opening the top of the box. Make sure the heater assembly has not been damaged during transportation. Check the ceramic insulation and that the heater wires are not in contact with any metal parts. 6) Fit the electric heater in the mouth of the indoor fan panel housing and drill eight 3 diameter holes for fastening. Check to make sure that the reset push button of the F9 thermal switch is accessible and at the top. See Heater Location diagram. 7) Fasten the PVC gasket, supplied with the accessory, to the frame surface of the heater adjacent to the indoor fan panel. 8) Fasten the heater to the panel with the screws supplied. 9) Remove the electrical connections cover of the heater and connect the power supply cables to connecting strip X1. Connect the control cable supplied, between connector J1 of the A3 Auxiliary Resistance board, and connector J1 of the A1 control board of the air conditioning unit. 1) The installer should complete the electric circuit of the heater by fitting an air flow control F1 at the most convenient point of the ducts so as to make sure the heater operates only when there is sufficient air flow. 11) Connect power supply to the RTC/RTH unit and the heater. 1) To configure the accessory, press the test button of control board A1 for over seconds, until the red led on the board goes on. Configuration will be complete when said led goes off. 13) Check operation of the heater by selecting the Emergency Heat mode at the ambient thermostat of the air conditioning unit. 1) Assemble the electrical box covers of the heater and the RTC/RTH unit. Note: Should an incorrect response of the system take place, see the Operation section of the RTC/RTH Installation Instructions. There you will find the control functions of the A1 electronic board on the heater, as well as its configuration, incidents identification, etc. Loose cables can cause overheating of the terminals or incorrect operation of the unit. Fire hazards may also arise. Therefore, make sure all cables are connected tightly. 17

Heater location RTC/RTH - 7 to 3 18

Wiring diagram Heater 5kW, 3.1.5 RTC/RTH-7 to 3 19

Wiring diagram Heater 5, 1, 15kW,.3.5 RTC/RTH-7 to 3

Tray heaters General Information The tray heater accessory is designed for heat pump units with one and two compressors. The purpose of this accessory is to prevent freezing of the water in the tray and the formation of ice inside the outdoor coil. A flexible cable heater is fitted between the bottom of the outdoor coil and the drain tray. There are two connecting accessories: tray heater 1 for units with one single compressor, and tray heater related to the board of the second compressor. These heaters are enabled only if the following conditions arise: Condition 1. The operating mode of the air conditioning unit is in heat. Condition. The compressor is in operation. Condition 3. The temperature detected by the liquid probe is below - C. The heater is disconnected when the temperature detected by the liquid probe is above - C. Technical Specifications This accessory includes the following components: - Tray heater connecting board. If the unit is equipped with compressors, two boards are provided; tray heater 1 and tray. - 3 mm. long cable for interconnecting the accessory board. Accessory communication cable. - Cable for connecting to 3 VAC of the heating cable. - Heating cable, ref. AKO-7135 (35W/m). - Fastening flanges. Assembly Install on the electric panel of the outdoor unit and fasten the board of the accessory by means of the holes drilled next to the electrical connections. General Dimensions mm. Installation Install the tray heater accessory as follows: 1. Disconnect power supply to the outdoor unit.. Remove the control panel electrical connection covers of the unit. 3. Remove the access covers to the outdoor unit coil.. Install the tray heater along the condenser within the tray. Prevent the end protection and the connection from being in contact with the tray of the unit (see installation of the electric heater). 5. Avoid the cable for connecting to 3 VAC from being in contact with the tray of the unit (see installation of the electric heater). 6. Install the board of the accessory in the outdoor unit by means of the holes drilled next to the electrical connections. Connect the hose cables to 3 VAC. Then connect the operating cable provided, between connector J1 on the auxiliary board A3 and connector J1 on the control board A1 of the air conditioning unit (length of the cable 3 mm.). If the unit is equipped with compressors, connect to connector J or J8 on A. 7. Re-establish power supply to the air conditioning unit. 8. To configure this accessory, press the test button on control boar A1 for over seconds, until the red LED on the board goes on. Configuration will be completed once this LED goes off. 9. Check operation of the accessory by selecting heat mode on the ambient control thermostat of the air conditioning unit. Have the outdoor fan go off so that the liquid probe may detect a temperature of below - C and the tray heater may be enabled. Once the temperature detected by the liquid probe rises to over C, the heater is turned off. 1. Reassemble the air conditioning unit covers. Note: Should the system produce an incorrect response, please see YKloon Board Technical Information. 1

Wiring Diagrams Tray heater accessory 1-3.1.5 Tray heater accessory - 3.1.5 All data subject to change without notice.

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