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AQUASNAP
30RA / 30RH
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
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PRO-DIALOG control
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30RA/30RH Air-cooled liquid chillers and reversible air-to-water heat pumps with integrated hydronic module For the use of the control system, refer to the Pro-Dialog Plus control manual. Contents Page Physical data ................................................................................................................................. 2/3 Electrical data ................................................................................................................................ 2/3
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30RA Physical data and electrical data - Model RA Table I: Physical data - Model RA 30RA 017 021 026 033 Net cooling capacity* kW 17.70 21.60 25.80 31.70 Operating weight without hydronic module kg 200 220 250 285 with hydronic module kg 220 240 280 315 Refrigerant charge R-407C kg 4.80 5.13 6.41 7.70 Compressor One scroll compressor Evaporator One plate heat exchanger Net water volume l 1.50 1.88 2.16 2.82 Water connections (MPT gas) inches 1 1 1-1/4 1-1/4 Maximum water pressure kPa 1000 100
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30RH Physical data and electrical data - Model RH ENGLISH Table I: Physical data - Model RH 30RH 017 021 026 033 Net cooling capacity* kW 16.70 21.60 24.60 29.00 Net heating capacity** kW 18.80 24.80 27.80 34.00 Operating weight without hydronic module kg 235 265 285 315 with hydronic module kg 255 285 315 345 Refrigerant charge R-407C kg 7.15 7.84 9.30 11.00 Compressor One scroll compressor Control system Pro Dialog-Plus Refrigerant-water heat exchanger One plate heat exchanger Net water volu
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200 400 30RA/30RH Dimensions and location of hydraulic connections (mm) Mod. 30RA 017 - 021 Mod. 30RA 026 - 033 Mod. 30RH 017 Mod. 30RH 021 - 026 - 033 1503 1328 3 1 3 1 2 180 125 2 175 105 130 1243 130 130 1068 130 12x20 12x20 1. Water inlet 2. Water outlet 3. 3/4” gas safety valve outlet Main switch Grommet: 1 Pg 29 and 2 Pg 16 for power supply and control cables entry GB - 4 700 200 635 578 859 478 796 40 1453.5 635 578 1003 478 940 40 1657.5
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30RA/30RH General information and hydronic module ENGLISH This is necessary to prevent ice from accumulating on the frame Unit installation and to permit correct operation also in the event of heavy Read this instruction manual thoroughly before starting the snowfalls. installation. The unit must be levelled on both axes (the tolerance is less than This unit complies with low-voltage (EEC/73/23) and electro- 2 mm per metre). magnetic compatibility (EEC/89/336) directives. • In some cases it may
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30RA/30RH Water connections Typical water circuit diagram for units without hydronic module Legend for units without Mesh filter Pressure couplings hydronic module: 30RA - RH unit Thermometers without hydronic Flow switch module Automatic purge valve Fan coil units
Hydraulic circuit drain Water circulating valve Charge valve pump Expansion vessel Flexible coupling Pressure gauges Safety valve Plate-type heat Manual shut-off valves exchanger drain valve Typical wa
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30RA/30RH Water connections ENGLISH Ethylene glycol curve ATTENTION: The pump leakproof components are not suitable for use with propylene glycol. CAUTION: Weight concentration of ethylene glycol in water % Using water with glycol may make it necessary to change the configuration of the control system. Make the plate heat exchanger hydraulic connections with the It is therefore necessary to protect the heat exchanger inlet with necessary components, using material which will guarantee that an ex
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30RA/30RH Water connections Water pressure drop of the unit without hydronic module A. 30RA-RH 017 B. 30RA-RH 021 C. 30RA-RH 026 D. 30RA-RH 033 Water flow rate, l/s Outlet available static pressure of the unit with hydronic module A. 30RA-RH 017 B. 30RA-RH 021 C. 30RA-RH 026 D. 30RA-RH 033 Water flow rate, l/s GB - 8 Pressure drop , kPa Available static pressure, kPa
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30RA/30RH Electrical connections and refrigerant charge ENGLISH Electrical connections Liquid refrigerant charge Checking the charge WARNING: To prevent electrical shock or equipment damage, make sure WARNING: disconnects are open before electrical connections are made. When adjusting the refrigerant charge always ensure that If this action is not taken, personal injury may occur. water is circulating in the heat exchanger to prevent any possibility of freezing up. Damage caused by freezing is n
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30RA/30RH Refrigerant charge and electronic control Undercharge Electronic control If there is not enough refrigerant in the system, this is indicated by gas bubbles in the moisture sight glass. Operation and control of all units is carried out via the electronic control. There are two possibilities: The instructions supplied with the control include comprehensive descriptions. • Small undercharge (bubbles in the sight glass, no significant change in suction pressure). - After detection and repa
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30RA/30RH Start-up, compressor and pump replacement, unit protection devices ENGLISH Start-up Unit start-up is done by the electronic control described above, and must always be carried out under the supervision of a qualified air conditioning engineer. Necessary checks/precautions before start-up - Ensure that all electrical connections are properly tightened. - Ensure that the unit is level and well-supported. - Check that the hydraulic circuit has sufficient water flow and that the pipe con
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30RA/30RH Unit protection devices, operating limits and operating range Table III: Pressure switch settings NOTE: For industrial process cooling applications, where high Cut-out Reset stability of water temperature levels must be achieved, the High pressurestat 30 bar Manual values above must be increased. WARNING: We recommend consulting the factory for these particular Alteration of factory settings other than the design set-point, without applications. manufacturer's authorisation, may void t
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30RA/30RH General maintenance, maintenance and final recommendations ENGLISH Cleaning should be done at regular intervals and should never be General maintenance left until the unit has become blocked. The time intervals between cleaning depend on the quality of the ATTENTION: water used, but as a general rule it is advisable to clean it at least Before starting any servicing or maintenance operation on the unit, once a year. make sure that the power supply has been disconnected. - Refrigerant c
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30RA/30RH Troubleshooting A list of possible faults, as well as the probable cause and - Badly fitting panels; suggested solutions is shown as follows. In the event of a unit INSTALL CORRECTLY. malfunction it is recommended to disconnect the power supply and ascertain the cause. Compressor loses oil: - Leaking refrigeration circuit; Symptoms Cause REMEDY REPAIR LEAK. Water loss: Unit does not start: - Defective entering or leaving connections; - No power supply; CHECK AND TIGHTEN IF NECESSARY. C
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L010126H27 - 0405 Via R. Sanzio, 9 - 20058 Villasanta (MI) Italy - Tel. 039/3636.1 The manufacturer reserves the right to change any product specifications without notice. Order No. 13024-74 April 2005. Supersedes Order No. 13024-74, June 2004. Printed in Italy
