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ACS 35 DESCRIPTION The ACS 35 is an instant domestic hot water mixer. It uses a brazed, stainless steel plate heat exchanger and is ideal for use in combination with DHW storage cylinders. Temperature of the hot water delivered to the taps is regulated by the thermostatic mixing of water in the primary circuit.
GENERAL SAFETY INFORMATION AND PRECAUTIONS READ THIS MANUAL THOROUGHLY BEFORE PERFORMING ANY WORK ON THE PRODUCT. The manufacturer reserves the right to modify the product without notice for the purpose of introducing technical im- provements or to facilitate production, installation and positioning. The illustrations in this manual may therefore differ slightly from the actual product.
MAIN COMPONENTS 1 Pump 2 Ball valve, DN 20 1" M - 3/4” F 3 Red knob for primary circuit inlet valve 4 Blue knob for primary circuit return valve 5 Blue knob for cold water inlet valve 6 Black knob for non-return valve with DHW outlet temperature sensor 7 Non-return valve 8 Three-way mixer valve with thermostatic actuator, 35 - 65°C 9 Manual bleed valve, 3/8"...
5 Flow switch 11 Temperature sensor 6 Valve with temperature sensor TECHNICAL SPECIFICATIONS DESCRIPTION ACS 35 Thermal power absorbed with storage cylinder at 50°C and DHW water delivery at 10-45°C Water draw at 10-45°C with storage cylinder at 50°C l/min Thermal power absorbed with storage cylinder at 55°C and DHW water delivery...
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Domestic hot water production graph Temperatura di ingresso AFS 10°C Temperatura di ingresso AFS 20°C DCW inlet temperature 10°C DCW inlet temperature 20°C Temperatura prelievo accumulo (°C) Temperatura prelievo accumulo (°C) Temperature of water from storage cylinder (°C) Temperature of water from storage cylinder (°C) NB: Correct functioning of the product is only guaranteed if the primary circuit inlet temperature is at least 5°C higher than the DHW setpoint.
OVERALL DIMENSIONS AND FITTING POSITIONS ACS 35 MP - Primary inlet 1" M - 3/4" F RP - Primary outlet (return) 1" M - 3/4" F EAFS - Domestic cold water 1" M - 3/4" F inlet UACS - DHW outlet 1"...
SYSTEM SCHEMATIC Example of wall mounted installation DHW outlet Recirculation Primary inlet Primary outlet (return) INSTALLATION PRELIMINARY CHECKS Carefully remove the packing and check that the product is complete and undamaged. If any defect or damage is de- tected, do not install or attempt to repair the product but return it to the retailer. Dispose of packaging in compliance with applicable law.
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The product must be stored in a dry place where it is not subject to frost. The product must be installed where it is protected against splashes of water. Ambient temperature in the place of installation must not exceed 40°C during functioning of the product.
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- Attach the product to the bracket (3) by inserting the screws (2) through the slots (4) in the back panel, using the side guides (5) to align it. - Slide the product down until the screws lie at the top of the slots.
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WATER CONNECTIONS CONNECTION TO THE WATER CIRCUIT 1 Safety valve 7 Expansion vessel (accessory) 2 Shut-off valve K Fitting for domestic cold water supply 3 Pressure gauge 4 Non-return valve 5 Pressure reducer valve (necessary for K>=6 bar) 6 Fine mesh filter The pipes between the product and the storage cylinder should be kept as short as possible.
ELECTRICAL CONNECTIONS The following instructions are mandatory. 1 Use a multi-pole, magnetic thermal, earth leakage breaker and disconnector that conforms to legislation in the count- ry of installation. 2 Respect the L (Phase) - N (Neutral) polarity. Keep the ground wire about 2 cm longer than the power wires. 3 Make sure the product is correctly connected to ground.
FLUSHING THE HEAT EXCHANGER - Shut off the DHW flow by closing the ball valves (1a) and (1b) for the cold water inlet and hot water outlet respectively. - Attach the flushing fluid supply to the cold water inlet valve (2a). - Attach the flushing fluid drain to the DHW outlet valve (2b).
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RIELLO S.p.A. Via Ing. Pilade Riello, 7 37045 - Legnago (VR) The manufacturer strives to continuously improve all products. Appearance, dimensions, technical specifications, standard equipment and accessories are therefore liable to modification without notice.