CLIMAVENETA Accurate AX Installation Manual - User Maintenance
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CLIMAVENETA Accurate AX Installation Manual - User Maintenance

Precision air-conditioners
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INSTALLATION MANUAL - USER AND MAINTENANCE
Precision air-conditioners
ACCURATE
AX
Direct Expansion
Air Cooled
AW
Direct Expansion
Water Cooled
AD
Dual Fluid
Air Cooled
AT
Dual Fluid
Water Cooled
AF
Free Cooling
Water Cooled
GB
frame 1:
07-10
frame 2:
15-18
frame 3:
20-26-29
frame 4:
39-30-40-50
frame 5:
55-60-70
frame 6:
80-90

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  • Page 1 INSTALLATION MANUAL - USER AND MAINTENANCE Precision air-conditioners ACCURATE Direct Expansion Air Cooled Direct Expansion Water Cooled Dual Fluid Air Cooled Dual Fluid Water Cooled Free Cooling Water Cooled frame 1: 07-10 frame 2: 15-18 frame 3: 20-26-29 frame 4: 39-30-40-50 frame 5: 55-60-70...
  • Page 3 WARNING = for actions that require special dangers that may derive from care and suitable preparation electricity (IEV 826-09-01). PROHIBITED = for actions that absolutely MUST NOT be performed ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 4 ESP 200/300 Pa - belt driven (F3+F6) ESP 300 Pa - direct driven (F1/F2) Changeable ESP EC INVERTER Costant air flow (EC INVERTER fan) Costant ESP (EC INVERTER fan) English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 5 F6 + Fresh Air F7 + Fresh Air F8 + Fresh Air Nylon - STANDARD Option 20 PACKAGING Wooden crate Italian French German Option 21 LANGUAGE Spanish English Russian ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 6: General Characteristics

    Built and wired in compliance with the IEC 204-1/EN60204-1 standards, complete with contactor and overload protection for the compressors and fans, disconnecting switch with door inter- lock safety device. English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 7 Installation manual, and for ensuring the before being delivered. gas and oil charges, where necessary. AX - air cooled AW - water cooled ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 8 User Terminal manual. to maintain the desired conditions and ensure maximum energy saving. AF - water cooled AD - air cooled English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 9 Activation set points for the two circuits are available and are described in the User Terminal manual. Remember that circulation pump is NOT selected, nor provided from Climaveneta. AT - water cooled ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 10: Air Flows

    5 fig. 6 5 UNDER units with intake from the top and front outlet 6 UNDER units with intake from the top and outlet under plenum. the floor English 05/09 ACCURATE AX - AW - AD - AT - AF...

  • Page 11: Rating Plate

    1 - Indoor air 24°C-50%, Condensing temp. 45°C - ESP 20Pa 2 - Indoor air 24°C-50%, Condensing temp. 48°C (dew point) - ESP 20Pa 5 - Measured at h=1,5 m height and 2 m front in free field ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 12 5 - Measured at h=1,5 m height and 2 m front in free field * PAY ATTENTIONS: PIPELINE DIMENSIONS MUST BE CALCULATED FROM INSTALLED LOCALLY, FOLLOWING THE INSTRUCTION ON WATER CONNECTIONS PARAGRAPHS English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 13 5 - Measured at h=1,5 m height and 2 m front in free field * PAY ATTENTIONS: PIPELINE DIMENSIONS MUST BE CALCULATED FROM INSTALLED LOCALLY, FOLLOWING THE INSTRUCTION ON WATER CONNECTIONS PARAGRAPHS ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 14 5 - Measured at h=1,5 m height and 2 m front in free field * PAY ATTENTIONS: PIPELINE DIMENSIONS MUST BE CALCULATED FROM INSTALLED LOCALLY, FOLLOWING THE INSTRUCTION ON WATER CONNECTIONS PARAGRAPHS English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 15 6 - air 24°C-50%, water 7-12 °C - ESP 20Pa * PAY ATTENTIONS: PIPELINE DIMENSIONS MUST BE CALCULATED FROM INSTALLED LOCALLY, FOLLOWING THE INSTRUCTION ON WATER CONNECTIONS PARAGRAPHS ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 16: Hot Water Re-Heating

    4 - water IN / OUT 70°C/60°C, air 20°C 6 - water IN / OUT 45°C/40°C, air 20°C * PAY ATTENTIONS: PIPELINE DIMENSIONS MUST BE CALCULATED FROM INSTALLED LOCALLY, FOLLOWING THE INSTRUCTION ON WATER CONNECTIONS PARAGRAPHS English 05/09 ACCURATE AX - AW - AD - AT - AF...

  • Page 17: Accessing The Main Components

    This is for safety reasons, so as to not have to shut the unit down during normal maintenance operations. WARNING: before restarting the air-conditioner, always check that all the panels have been correctly replaced. ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 18: Transport And Handling

    If the side panels have been damaged during transport, they must be replaced before installing the unit. English 05/09 ACCURATE AX - AW - AD - AT - AF...

  • Page 19: Dimensions And Weight

    Centrifugal fan OVER Models Frame 3 OVER Models Frame 4 EC Radial fan EC Radial fan Centrifugal fan Centrifugal fan Net Weights Frame Mod. (kg) (kg) (kg) (kg) (kg) ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 20 OVER Models Frame 5 EC Radial fan Centrifugal fan OVER Models Frame 6 EC Radial fan Net Weights Frame Mod. (kg) (kg) (kg) (kg) (kg) English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 21 UNDER Models Frame 1 UNDER Models Frame 2 UNDER Models Frame 3 UNDER Models Frame 4 Net Weights Frame Mod. (kg) (kg) (kg) (kg) (kg) ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 22 UNDER Models Frame 5 UNDER Models Frame 6 Net Weights Frame Mod. (kg) (kg) (kg) (kg) (kg) English 05/09 ACCURATE AX - AW - AD - AT - AF...

  • Page 23: Positioning The Air-Conditioner

    Make sure that the air intake and outlet are never blocked, even partially. D mm >600 E mm L mm ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 24: Operating Limits

    In this case too, the air-conditioner must be screwed to the base unit moulding moulding during the positioning phase. Access to the inlet/outlet connections from the rear A1 mm 1000 1530 2080 2630 C1 mm English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 25 For ducting the air intake, plenums are available to be fitted between the top of the unit and the air return duct or the false- ceiling. L (mm) 1000 1000 1550 2100 2650 P (mm) H (mm) ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 26 FRONT OUTLET MOULDING (UNDER UNITS) The figure shows the moulding for the front air outlet (optional for Under units). L (mm) 1000 1000 1550 2100 2650 P (mm) H (mm) English 05/09 ACCURATE AX - AW - AD - AT - AF...

  • Page 27: Optional Fresh Air

    The fresh air kit is supllied with G3 filter installed in suction side of fan, allowing to mix the fresh air with recirculating air. Connect a flexible pipe diameter 100mm (not supplied) as shown in the image below. The fresh air volume is around 5% of nominal air flow of unit. OVER UNDER ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 28: Position And Diameter Of The Water Connections

    IN water cooled AW OUT water cooled AW IN power supply IN humidifier water OUT humidifier water and condensate water drain IN hot water OHW OUT hot water English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 29 OUT refrigerant AX-AD IN water cooled AW OUT water cooled AW-AT-AF IN water AF-AT IN power supply IN humidifier water OUT humidifier water IN hot water OHW OUT hot water ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 30 OUT water cooled circ. 2 AW-AF-AT IN water AF-AT IN power supply IN humidifier water OUT humidifier water IN hot water OHW OUT hot water OUT condensate water drain English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 31 IN water cooled AW OUT water cooled AW-AT-AF IN water AF-AT IN power supply IN humidifier water OUT humidifier water IN hot water OHW OUT hot water OUT condensate water drain ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 32: Water Connections

    For different values of incrostation factor multiplay all datas reported on cooling capacity tables for factors reported on following table. Incrostation factor °C/W) 4,4 x10-5 0,86x10-4 1,72x10-4 Incrostation factor 0,96 0,93 Compressor factor 0,99 0,98 Total power factor 0,99 0,98 English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 33 • consider a water speed limit inside the pipeline of 1-1,2m/s • cross the water flow value requested (in the example 5.000l/h) • extract the pressure drop value of pipe diameter selected (in example 35mm w.c./m) ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 34 9.000 8.000 8.000 7.000 7.000 6.000 6.000 5.000 5.000 4.000 4.000 3 .0 00 2 .0 00 1.000 1.000 12 14 16 18 Linear Pressure Drops, (mm w.c./m) English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 35 7.000 6.000 6.000 5.000 5.000 4.000 4.000 3 .0 00 .0 00 2 .0 00 .0 00 1.000 1.000 12 14 16 18 Linear Pressure Drops (mm w.c./m) ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 36: Air Condenser: Suggested Installation

    3 metres N.B.: the liquid pipes must be protected against solar radiation Install an oil separator for pipe lenght above 30m, (see the oil separator paragraph) English 05/09 ACCURATE AX - AW - AD - AT - AF...

  • Page 37: Refrigerant Connections (Ax)

    0,75 2,10 1,90 0,53 0,26 0,80 2,20 2,00 0,55 0,27 0,85 2,40 2,10 0,60 0,30 0,95 2,70 2,40 0,70 0,35 1,10 3,20 2,80 0,80 0,45 1,30 4,00 3,30 ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 38: Oil Separator

    Oil separators must be always pre-charged before its use, as described on the table, with the same oil of the compressor Frame Models OIL SEPATATOR Models OS10 OS30 OS40 OS30 OS40 Precharge 0,3 lt 0,3 lt 0,3 lt 0,3 lt 0,3 lt English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 39 R410A Discharge line gr/m Liquid line gr/m N.B. Important: when gas is added,lubrication oil must also be added in a ratio of 10% weight of the refrigerant gas aded. ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 40: Condensate Drain

    - Fasten the ends of the power cable to the terminals on the main switch inside the electrical panel; fully tighten the screws. Connect the yellow-green earth wire to the special terminal marked 'PE'. English 05/09 ACCURATE AX - AW - AD - AT - AF...

  • Page 41: Electrical Specifications

    B = cooling only H = cooling only plus / dehumidification R = cooling only + STD hearters T = complete version (cooling only + STD heaters + humidifier/dehumid.) ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 42 39 - 30 - 40 -5 0 400/3/50 3,75 55 - 60 - 70 400/3/50 400/3/50 80 - 90 The above datas refer to the max. possible power consumption. English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 43 (-) to readjust the setting (see Fig. 2). Note: Partial voltage is applied even if motor is not running. Dis- connect voltage for service on motor or on regulator. ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 44: Power Connections

    In some applications, where is required a second set point, is possible to switch from NORMAL (T1) to WINTER (T2) set point, by mean the contact SET T1/T2 connected with the right terminal strips on the electrical panel of internal unit. (see the electrical diagram supplied with the unit). English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 45 (water-cooled models); Check that the sections of corrugated pipe with the function of drain trap (both inside and outside of the air-conditioner) have been filled with water during installation. ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 46: Operation And Control

    If the superheating is above the value indicated previously, open the valve further; if it is lower, close the valve further. NOTE: the thermostatic valve must only be calibrated by specialist personne English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 47 Assembly (See Fig. B) Slide the elastic ring onto the motor pin. Insert the pulley on top, then tighten the fastening screws (1) ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 48: Instruments And Alarms

    - the negative pressure test point is located in a position for Pressure measuring the pressure upstream of the fan; test point Pressure test point RIGHT-HAND SIDE RIGHT-HAND SIDE English 05/09 ACCURATE AX - AW - AD - AT - AF...

  • Page 49: Calibrating The Control And Safety Devices

    Safety thermostat (versions T and H) Symbol Activation Differential Reset 28 bar (opening) Manual reset 1,5 bar (opening) 1.5 bar 2.5 bar (automatic) 320 °C (opening) Manual reset ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 50: Calibrating The Pressure Control Valve

    - if the device is not activated, progressively reduce the calibra- tion of the pressure switch; - if the device is activated too early, increase the calibration. English 05/09 ACCURATE AX - AW - AD - AT - AF...

  • Page 51: Temperature And Humidity Probe

    EMERGENCY MANUAL OPERATION The valve can be operated manually, in the event of faults to the servomotor or the control system, using the manual control knob (not supplied). ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 52 0 and 1. If a control signal from SSB... actuators cannot be repaired; the complete unit must be the controller is present, then this takes priority in determining replaced. the position. English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 53 • The actuator must only be commissioned with a correctly Calibration takes about 60 seconds. mounted valve in place! Repair The SSC... actuators cannot be repaired. They must be repla- ced as a complete unit. ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 54 Normal operation 5. Actuator moves to the position as indicated by signals Y or R green LED is lit permanently A flashing red LED indicates a calibration error. English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 55 FRAME MODEL AT/AD Actuator (6) Valve model close off* (kPa) *close off = Maximum permissible differential pressure at which the motorised valve will close securely against the pressure ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 56: Electric Heaters

    Water fill solenoid valve: YV1. Cylinder drain solenoid valve:YV2. Microprocessor control board:A1. 10 Temperature and humidity probe: BH1. 2. TA1 1. A3 9. B1 8. YV2 7. YV1 10. BH1 English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 57 - remove and clean the filter located inside the solenoid valve fit- ting; - dismantle the drain assembly (shown in Figure 13), clean the pipes and remove any flakes of scale from the cup-drain trap. ACCURATE AX - AW - AD - AT - AF English 05/09...

  • Page 58: Humidifier Power Supply

    T) with mechanical features such as to be able to resist the Check that the head is sufficient to lift the condensate to the high temperatures of the water exiting the steam cylinder. point of drainage. English 05/09 ACCURATE AX - AW - AD - AT - AF...

  • Page 59: Maintenance

    This operation must be carried out with the unit off and after having made sure that the appliance is disconnected from the power supply). ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 60 The necessity to a correct dismantling is signed by the label as shown on side. English 05/09 ACCURATE AX - AW - AD - AT - AF...

  • Page 61: Troubleshooting

    Check the operation of the hot gas three-way during the dehumidification plus post-heating valve; phase Check the operation of the compressor used for post-heating: in this case, see “THE COMPRESSOR/COMPRESSORS DON'T START”. ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 62 EC radial fan speed set too low Excessive pressure drop in the air distribution Check the sizing of the air distribution system system. (ducting, false-ceiling, underfloor plenum, grills) English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 63 (See CONTROLLING THE CONDENSING PRESSURE) The system is affected by an excessive See “HIGH COMPRESSOR DISCHARGE discharge pressure PRESSURE”. ACCURATE AX - AW - AD - AT - AF English 05/09...
  • Page 64 2°C. The system is affected by an excessively See “LOW COMPRESSOR DISCHARGE low discharge pressure PRESSURE”. English 05/09 ACCURATE AX - AW - AD - AT - AF...
  • Page 66 88 Bai Yun Rd, Pudong Xinghuo New dev. zone 201419 Shanghai China Tel 008 621 575 055 66 Fax 008 621 575 057 97 Climaveneta Polska Sp. z o.o. Ul. Sienkiewicza 13A, 05-120 Legionowo, Poland Tel +48 22 766 34 55-57 Fax +48 22 784 39 09 info@climaveneta.pl...

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