AQUA - Air-conditioner CIAT - Free user manual and instructions

USER MANUAL AQUA CIAT

Enclenchement (mbars)

Receiving the material

Identifying the material

Safety recommendations

Hydraulic connections

Circulating pump speed selection

Electrical connections and regulation devices

Control of unit by CLIMBOX 2 programmer

Control of unit with MRS all or nothing entries

Control of unit with MCAD5 remote control

Safety and regulation devices

Verifications before commissioning

List of basic parameters to be set before starting

Technical characteristics

Electrical characteristics

Trouble shooting assistance

Note : for further information, refer to the CIAT guarantee exercise. English français The thermodynamic generators AQUACIAT Series ILZHE air/ water are outdoor packaged units equipped in series with : In order to avoid all risks of accident during the installation, commissioning and adjustment operations, it is imperative to take into consideration the specificities of material, such as : – refrigerant circuit under pressure – presence of refrigerant fluid – presence of voltage – siting Only qualified and experienced personnel should work on such equipment. Recommendations and instructions mentioned on the maintenance brochures, stickers or specific instructions must be respected. Conform to norms and regulations in force. IMPORTANT : before working on the unit, make sure that the electrical supply is cut. – Buffer capacity (ILZHE only). – Electrical auxiliary device (ILZHE only). – Hydraulic accessories. – Complete MRS5.1 electronic control. They are tested and checked in factory and delivered with a load of R407C.

– Low sound level compressor. – Brazed plates exchanger. – Air-cooled condenser. – Propeller fan(s) with speed variation in cooling mode.

Check the unit and conformity of delivery on arrival on site. In case of damaged unit or uncomplete delivery, note discrepancies on the delivery voucher. IMPORTANT : you must confirm your reservations by registered letter to the shipping agent within the 3 days following delivery.

Before handling, positioning and connecting the unit, the installer will check the following points : – These units are to be installed outside, in the vicinity of the building, on a terrace or in a garden. They are designed for operating under the rain, but can also be installed under a shelter, open on 4 sides. If more heating than cooling is planned, siting privileging the sun will be preferable. If little heating is planned, adopt a northern orientation. – The surface of the ground or structure will be resistant enough to support the weight of the unit. – Position the unit above the average snow height of the area where the group is to be installed. – The unit must be perfectly level. – The group must be perfectly accessable for ease in carrying out maintenance and servicing operations. – No obstacle should impede the free circulation of air on the air exchanger (intake and discharge). Sound level : our units have been designed for a low sound level operation. However, when planning the installation, take into consideration the outside environment and the type of building for radiated and transmitted noise (vibrations). If need be, ask for a sound technician’s assessment.

Each unit has a manufacturer’s data plate with an identification number. This number is to be quoted in all correspondance.

The duration of the guarantee is 12 months, starting from the date of commissioning, which must be carried out within the 3 months following the invoicing date. In all other cases, its duration is 15 months from the invoicing date. When the commissioning is carried out by CIAT or a CIAT approved technician, the guarantee covers totally the parts, the refrigerant and electrical circuits, working hours and travelling, each time the fault is attributable to CIAT or its material. When the commissioning is not carried out by CIAT, the guarantee only covers the defective parts as well as the refrigerant and electrical circuits assembled in factory, except if the recognized fault is not attributable to the manufacturer. Installation garden Installation terrace

Once the site has been selected, proceed with the positioning of the unit. Take into account the weight of the unit (see table “ Technical characteristics ”). The tube diameter is not necessarily the same as the one designed for the unit. Attention : lift the unit carefully and only in the vertical positon.

Antivibratil mounts are available in the catalogue for the range ILZHE - ILZC.

Refer to the drawing delivered with the unit to get the dimensions of the mounts and the fixation details.

30 à 130 ∅1″ ∅1¼″ Hydraulic flexible connections (kit) Stainless braided flexible connections are available in the catalogue.

Deutsche Diameter of water connections MODEL

English A study of the dimensions must be carried out in order to respect the operating conditions (flow – pressure drops).

Flexible connection diameter ∅1″ ∅1¼″ 50 à 130 ∅1¼″ Insulation thickness 9mm 9mm 13mm français English Deutsche – The electrical liaisons (refer to the electrical diagram of the unit). The AQUACIAT Series ILZHE - ILZC are composed of a complete hydraulic module units including : – 1 buffer tank in painted steel, thermally insulated (ILZHE only). – 1 expansion vessel. – 1 automatic air vent. – 1 safety valve calibrated at 4 bars (approx.). – 1 to 2 drain valves (according to models). – 3 electrical heating elements inside the buffer tank (auxiliary) (ILZHE only). – 1 3-speed (models 22 to 65) or a 1-speed pump (models 90 and 130). – 1 winter protection of the unit (heater integrated in the hydraulic module). – 1 safety thermostat (internal temperature of the tank limited at 78°C). – 1 differential water pressostat.

♦ The electrical liaisons are to be carried out as follows : – Connection of the power circuit. – Connection of the protection conductor on the earth terminal. – Possible connection of the electrical heating elements load shedding/repowering potential free contacts, heating operation, cooling operation. – An opening in the unit casing allows the passage of supply cables.

MRS 5.1 control and display module The AQUACIAT Series ILZHE are equipped with a display and control module with MRS5.1 type microprocessor. Main functions : – Hot or cold water temperature control. – Two types of controls possible. – Fix setting on the water return. – Drifting of the set point as a function of the outside temperature (standard configuration).

The circulating pump offers a choice of 3 speeds. The speed will be determined as a function of the installation pressure drops and of the unit’s available pressure curves. To modify the circulating pump speed : – on models 22 to 30, turn the circulating pump adjusting wheel – on models 50 to 65, open the circulating pump hood and reposition the removable contact. The MRS5.1 presents the following characteristics : – Control of operating parameters. – Defrosting of unit by cycle reversal. – Fan(s) speed variation in cooling mode. – Faults diagnosis (level 0, 1 and 2 faults). – Memorization of faults in case of current cut. – Shedding and repowering of electrical auxiliary supplies.

– Install a filter upstream from the unit water inlet. – Respect the flow direction indicated on the unit pipes (inlet – outlet). – The pipes are carefully insulated in order to avoid losses and condensation. – The pipes should not be subjected to any stress. – Flexible connections are recommended for the connection of water pipings in order to reduce to the minimum the transmission of vibrations to the building. These connections have to be assembled when the unit is installed on resilient mounts (vibration isolators). – Drain the unit when there is a risk of frost. – Utilization of glycol must not overpass 15% in order not to damage the unit. Note : the maximum working pressure on the water side will be 3 bars (approx).. The compressor operation is under the dependance of the electronic module. As a function of the difference between the cold water (or hot water) return temperature and the calculated setting, the electronic module will request compressor running or stop. The cold or hot water control sensor is positioned on the exchanger water return. Below –10°C outside temperature, the thermodynamic unit stops and the electrical auxiliary units take the relay. The ILZHE can be controlled through 3 types of external controls : – The Climbox 3 programmer. – The all or nothing entries. – The MCAD5 remote control.

Control of unit by CLIMBOX 2 programmer (optional)

The CLIMBOX 2 programmer is available in the catalogue. It allows controlling installations such as fan coil units or heating/ cooling floor. The AQUACIAT Series ILZHE are designed in conformity with the European norm EN 60204.1. They conform to the machines and CEM directives. All the wirings must be carried out as per the regulations in force on the installation site (in France, the NFC 15100). In all cases, refer to the electrical diagram enclosed with the unit. Respect the characteristics of the electrical supply indicated on the data plate. The voltage must be within the range mentioned : Power circuit : +06 % 230 V –10 % - 1 ph - 50 Hz + earth + neutral It integrates the following functions : – Selection of following modes : heating/cooling/stop/comfort/ economy/frost free. – 2 zone regulation for fan coil units installations. – Fault display (levels 1 and 2 faults). – In case of level 1 fault, relaunching of electrical auxiliary devices for 48h. reheating (while waiting for repair). Used with and EDF (France) electronic counter, it integrates also the following functions : – Shedding of electrical auxilary devices. – Adaptation of the regulation for “ Tempo ” price. (model 22 to 30) +06 % 400 V –10 % - 3 ph - 50 Hz + earth + neutral In the case of a unit controlled by CLIMBOX 2, the MRS5.1 card offers an automaticity control (AC). You can connect a contact (example : clock, ...) between 10 and 12 on the J2 terminal block : – closed contact : unit authorized to run – open contact : unit is stopped (model 50 to 13) ♦ The cable will be determined as a function of : – The maximum nominal intensity. – The distance between the unit and its original supply. – The protection originally planned. – The exploitation conditions of the neutral. ATTENTION : do not connect a phase on a neutral on terminals 10 and 12 of terminal block J2 .

The PCR kit controls the house ambient temperature and ensures the protection of the floor slab.

• In heating mode, the setting on water return takes into account the desired P08 ambient temperature (description of parameters under para. “ commissioning ”), the position of the ambient box thumbwheel and the outside temperature. For further details on the ClimBOX 2, refer to the operating brochure.

• In cooling mode, the unit starts as soon as the ambient temperature goes above P09. The unit regulates with the fixed setting on the P36 water return. The ambient box tumbwheel and the outside temperature have no influence on this mode. Fan coil unit type installation

Heating/cooling floor type installation Note : the cooling mode permits creating a temperature difference of 3 to 5°C between the indoor and outdoor temperature.

• The frost free mode permits maintaining the indoor temperature at 8°C. To install the manual reset thermostat on the unit, you must : The cooling/heating floor kit includes : – 1 ambient box with ambient temperature adjustment (+/- 3°C) thumbwheel. – 1 manual reset thermostat for departure of hot water at 63°C

1 - dismount the unit roofing and withdraw the electrical panel

2 - fix the 63°C manual reset thermostat on the electrical panel

(position 1, next to the 78°C thermostat of the electrical auxiliary devices) – wiring, plastic clips and isolating material. Location of 63°C thermostat

4 - fix the thermostat capillary on the water departure copper

tube with 2 plastic clips, then cover with the insulation also held in place with 2 plastic clips.

3 - modify the thermostats 63°C and 78°C wiring as indicated

above (see the electrical diagram of the unit).

Location of 78°C thermostat

Deutsche For this type of installation, we recommend using the Climbox 2 programme and the cooling/heating floor kit, both of which are available in the catalogue.

English Wiring diagram

français IMPORTANT : the phase used for the Climbox 2 supply must be the one used on the MRS5.1 card of the unit (see electrical diagram of unit). 9 10 11 12 J2 Connect contacts 7, 8, 9, 10, 11, 12 of the MRS terminal box. Connection recommendations : All the entries must be voltage free and of good quality. Wiring diagram of the ClimBOX 2 and of the PCR ambient box :

Control of unit with the all or nothing entries of the MRS 5.1 ATTENTION : do not connect a phase or a neutral on terminals 7 to 12 of terminal box J2.

• Distance inferior to 30 meters : Wiring diagram on the MRS 5.1

Deutsche English français Plan a shrouded cable connection whose passage will be at least 30 cm distant from all lines succeptible of generating parasites, the shrouding will be connected to the mass at both ends. be used with a push button type contact. – Common If the heating and cooling entries are supplied simultaneously, the unit goes into stop mode. If the frost-free entry is supplied simultaneously with the heating and/or cooling, the unit goes into frost-free mode If there are several shrouded cables, each shrouding will be connected separately (if a risk of parasite still exists, plan the relay of several entries).

• Distance superior to 30 meters : Plan relaying the various entries, 1 relay per entry mounted in the vicinity of the electronic card (cables section : 0.5 mm2).

Managing of the unit with the MCAD5 remote control (optional) The MCAD5 is available in the catalogue. It offers a fault exit NO/NF (terminal box J2 of the MCAD5) and an automaticity control (terminal box J2 of the MCAD5). Automaticity control : you can connect a potential free contact (ex : clock.. ;) between 1 and 2 on the terminal box J2 : closed contact : operation of the unit authorised open contact : unit is stopped. Entries : heating/cooling operation – building frost free : return water temperature maintained at 30°C – electrical auxiliary devices shedding/repowering : closed = shedding – remote assistance resetting : in case of level 1 fault, the contact closing permits relaunching the electrical auxiliary devices for 48h heating (while waiting for fault repair). This entry must ATTENTION : do not connect a phase or a neutral on terminals 1 and 2 of terminal box J2. Wiring diagram. H Description of faults levels :

• The green LEDs correspond to the operation of the associated symbol (compressor running, auxiliary electrical heating or cooling mode). devices, During a compressor anti-short cycle, the compressor running green LED flashes. – Level 0 fault : automatic restart of the unit after fault acquittal and a time delay – Level 1 fault : the unit stops ; It is possible to relaunch the electrical auxiliary devices for a 48hrs heating period (while awaiting for repair). – Level 2 fault : unit stops. Heating is impossible.

• The yelllow LEDs permit visualizing the requested action (run/ stop, access to parameters, heat pump relaunching, frost-free mode).
• The red LEDs signal a level 1 or 2 operating fault. In case of level 1 fault, the key 8 (relaunch) permits relaunching the electrical auxiliary devices for a 48 hours heating period (while waiting for repair). The display panel indicates the 48 hrs backward counting. For units fitted with a switch on their supply source, the opening of the electrical door is only possible when the switch is on “ off ”. To carry out measurements, make adjustments on the regulation card, visualize the faults on the MRS5.1 card. It should therefore be back on position “ On ”, electrical door open. H Parameters available for vizualization ATTENTION : the operation can only be done by qualified staff. P35, P36, P51 (see para. “commissioning”) IMPORTANT : the safety devices must not be shunted. P65 : software version MRS5.1 (press + for version and – for index) Note : the setting values of the unit are pre-set in factory and cannot be modified. Software version MCAD5 by pressing 5 sec. The lamp test key H Low pressure pressostat This pressostat has a safety function. It is connected on the compressor intake pipe. It controls the low pressure. If the pressure goes down below the setting value, the compressor supply is cut and displayed on the MRS5.1 display panel (fault D.5.0). The manual acquittal is only required if 5 faults occurred within 24 hours (Fault D5.2 in heating and fault D5.1 in cooling). Start : 0.5 bar Trip : 2 bar Automatic reset thermostat Liaison RS485 fault (standard visualization by strokes on the display panel)

Safety and regulation devices All the unit safety devices are controlled by the electronic card MRS5.1. If a safety device stops the group for a level 1or 2 fault, the fault must be read on the MRS5.1 display panel ; solve the problem, then cancel with the RS5.1 reset key. The unit will start again after a minimum period corresponding to the compressor anti-short cycle.

français English H High pressure pressostat H Immersed electrodes BS safety thermostat This pressostat has a safety function. It is connected on the compressor discharge pipe and controls the high pressure. In heating mode : if the pressure overpasses the setting value, the regulation setting is decreased by 1K, with display on the MRS5.1 (flashing point on the right of the display panel). After 5 HP overpassings (therefore 5 degradations of the setting) within 24 hours, the unit stops. The fault is signalled on the display panel (fault D6.1) and a manual acquittal is necessary (the fault was probably caused by a water flow fault). This device has a safety function. The contact opens when the water temperature in the tank goes above 78°C. This thermostat is manual reset type, and is located at the upper left side of the electrical panel. H Internal protection of compressor motor assembly The compressor is equipped with an internal protection which acts as a safety device and protects the electrical motor against overheating. A sensor positioned at the compressor outlet also controls the discharge temperature (B7). In case of fault, the compressor stops and it is displayed on the MRS5.1 card display panel (fault D1.0). The manual acquittal is only necessary if the fault occurs more than 5 times within 24 hours (fault D6.1in cooling and D6.2 in heating) but the discharge temperature must have gone down 10°C below the limit. In cooling mode : if the measured value overpasses the setting, the unit stops and the fault is shown on the display panel (fault D.6.0). The manual acquittal is only required if 5 faults occurred within 24 hours (fault D6.2). Start : 28 bar Deutsche Trip : 23 bar Automatic reset thermostat. H Refrigerant fluid sensor/exchanger B5 This sensor has a safety role. It is located on the exchanger water side pipe and controls the temperature. This sensor has a safety function for the plate heat exchanger. It is positioned at the exchanger outlet (refrigerant fluid side) and controls the refrigerant fluid temperature (active function in cooling mode only). If the temperature goes down below the MRS5.1 setting value, the compressor stops and it is displayed on the MRS5.1 display panel (fault D3.2). If the sensor detects a temperature below – 2°C during one minute, the unit stops for 6 minutes with display on the MRS5.1 card display panel (fault D4.0). H B2 plate exchanger antifrost sensor – water side If the temperature has not risen above 8°C during these 6 minutes, the unit goes to fault level 2 (D4.2). The manual acquittal is then required and only possible if the temperature goes above 8°C. H Water flow controller by FS differential pressure This device has a safety function. It is mounted on the pipe between the exchanger water inlet and outlet and controls the correct water flow. H Wiring liaison fault If the flow is insufficient, a supply cut occurs, with display on the MRS5.1 display panel (fault D2.2). MODEL 22 to 90

The sensor type connections, MCAD5 and Climbox 2 connected to the MRS5.1 are surveyed. In case of a cut (open circuit) or short cycling, the MRS5.1 signals it on its display panel. Location of sensors (simplified refrigerant circuit) : H Hydraulic module antifrost heater H Hydraulic circuit anti-frost protection The ILZHE are units designed for all year around operation, with an antifrost protection of the hydraulic module. An electrical heater maintains the temperature above + 2°C inside the hydraulic module. Important : the electrical panel must be constantly under voltage so that the antifrost function be ensured. All the precautions must be taken for avoiding an accidental cut of the electrical supply This protection is ensured by the electrical auxiliary devices. It allows maintaining the temperature of the water loop above : + 6°C for installations with fan coil units + 16°C for heating/cooling floor installations. This function has a priority in relation to shedding. Only faults d2.2, d2.0 and D9.6.2. can cancel this function.

P04 Verifications before commissioning – Make sure of the absence of refrigerant fluid leak – Make sure that water circulates in the generator when the circulator is operating – Purge the air of the hydraulic circuit – Check the tightening of all the electrical connections – Make sure that the network voltage corresponds to the unit voltage and that its value remains within the admissible limits (+6% –10% in relation to the nominal voltages)

List of basic parameters to be set before starting P12 P07 Starting sequence Before putting under voltage, check that the hydraulic circuit is supplied with water. of the MRS5.1 Put the unit under voltage (the green LED lights up and the display panel gives the water return temperature). The thermodynamic unit is stopped. Check that the circulator operates. Press the MRS5.1 CONFIGURATION key for modifying and validating the parameters which will serve your installation. Press keys + / – for reaching the parameter to be modified, on Pr value display, on + / – for modification of values and finally on Pr for parameter validation. For parameters P01 to P18 modification, you must first transfer P15 on 0 by positioning yourself on P15 and pressing simultaneously keys – and reset. P02 P03 P35 P36 control mode Value 0 : Climbox 2 programmer Value 1 : All or nothing entries Value 2 : remote control MCAD5 Hydraulic pump operation type Value 0 : continuous operation Value 1 : economical operation in anti-freeze and absence period Choice of hydraulic network Value 0 : fan coil unit Value 1 : cooling heating floor (PCR) If P07 = 1, you must also adjust : P09 ambient temperature above which the unit will ensure the cooling (factory setting : 25°C) P18 ambient temperature desired in the room in heating (factory setting : 20°C) Cooling regulation as a function of the outside temperature (accessible only if P07 = 0) Value 0 : no Value 1 : Yes Heating regulation as a function of the outside temperature Value 0 : no Value 1 : yes Water return setting in heating mode Water return setting in cooling mode

If you have selected a regulation as a function of the outside temperature (P02 and P03 = 1), the following parameters must also be set : Deutsche English français Complementary list of parameters for advanced configuration P20 Stage differential (in heating) Factory setting : 2K P21 Differential between stages (in heating) Factory setting : 3K P22 Stage differential (in cooling) Factory setting : 2K P23 Compressor validation Value 0 : operation not authorised Value 1 : operation authorised H In heating (for P03 = 1) P27 P28 P22 H In cooling (for P02 = 1) P30 P31 P32 outside air temperature at the start of drift outside air temperature at the end of drift Cooling minimum or maximum water return setting at the end of drift If P07 = 1 (PCR), the parameters P02, P30, P31 and P32 are not accessable. The parameter P23 permits operating the unit with the auxiliary devices only. It can help to ensure the heating while waiting for repair on the refrigerant circuit (refrigerant leak, etc..). Water return setting °C in heating mode Water return setting °C in cooling mode P29 P32 P35 P36 P28 External air temperature at the start of drift External air temperature at the end of drift Heating maximum water return setting at the end of drift P27 P30 External air temperature °C P31 External air temperature °C

Recommendations for parametering a PCR installation (P07 = 1)

H In heating H Check Regulation as a function of the outside temperature : P03 = 1 Adjustment of the water law : P36 = 20°C and P27 = 20°C P28 = Min. basic outside temperature of the area P29 = water return temperature used in the calculation of the house thermal losses at the min. basic outside temperature (example 35°C, max. 40°C) – that the discharge is heating (reading of parameter P55), – that the absorbed amperage is normal (see table “ electrical characteristics ”), – the operation of all the safety devices (see the table “ regulation and safety device ”). H In cooling Thermodynamic phenomena related to the installation, which can arise when starting P36 = 21°C inlands P36 = 23°C at sea-side H Intake pressure too low

– Presence of air in the hydraulic circuit. Starting the unit – Circulation too low, insufficient flow. Once the parameters have been set, operate the emitters in cooling or heating to have a thermal load, so that the thermodynamic unit can operate. You can then start the unit. To do so, move the parameter P15 to value 1 by pressing simultaneously on + and RESET. – Lack of heating load. – Ventilation not correct, obstacle at intake or discharge, recycling. H Condensing pressure too high Press key CONFIGURATION to exit the configuration mode. The internal safety devices of the unit are engaged. If a safety device has tripped, the fault must be found, reset the safety device and press the MRS5.1 RESET key. The thermodynamic unit start can only occur after a 2mn period corresponding to the scrutinization period of all safety devices. NOTE : To stop the unit, outside the cases of emergency, use : – either the Climbox 2 programmer (passage to mode Stop), – or a all or nothing external order which sends a stop order to the thermodynamic assembly, – or the remote control MCAD5 (passage to mode STOP). Note : Be aware of a risk of frost if a cut in the electrical supply occurs. – Ventilation not correct (obstacle to intake or discharge). – Air too hot at intake (recycling). – Presence of air in the hot water circuit. – Circulation too low, insufficient flow.

English Rotation speed Deutsche

Crankcase heater Oil capacity inside the compressor Water refrigerant exchanger

Number of stages Electrical heating elements

Regulation stage Coil

Buffer tank capacity

Max. capacity of the installation

Stages nominal current

Total nominal intensity of unit

Number Remote control circuit

Nominal current Stage number Electrical heating elements

The unit does not operate and there is no display on the CPU card Deutsche English D15

CIAT 01350 CULOZ FRENCH TRADEMARK D16 D The fuse of the card is out of order (F1). Fuse located behind the supply connector (J4). Type of fuse => 5 x 20 1A delayed D The card is not supplied with electricity or the voltage is too low, check the presence of 230V between J4.2 and J4.3. D Measure the voltages between ref. 0 and +5, then between 0 and +NR, then contact your After Sales Department. The CLIMBOX control does not work D Check that parameter P.04 is on 0 and that P.15 is on 1 D Check that the AQUACIAT phase is connected to the ClimBox 2 phase D The lights D21 and D22 are indicators of communication with the ClimBox 2, check their state and contact the After-Sales department. (the display lights are off if there is no dialogue) When starting one of the heating components, the card displays ”INIT” D The voltage drops too much when starting. Check the installation electrical components supply cable section, circuit breaker, etc.)

Cooling test Date time Suction pressure Compressor Exchange coil Plate heat exchanger Bar Suction temperature

Water inlet temperature

Water outlet temperature

Gas leaving temperature

Voltage at terminals

Current drawn by compressor

Current drawn by fan motor

Anti-frost activating temperature (water brazed plates exchanger protection)

Check mechanical conditions : pipework... Check tightness of electrical connections Clean direct expansion coil Check control settings Water differential pressostat

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