TACOTHERM FRESH PETA (C/CL)

Transcription

1 ACOHERM FRESH PEA (C/CL) FRESH HO WAER SAION WIH HIGH-EFFICIENCY PUMPS Fresh hot water station for hygienically heating drinking water in accordance with the continuous flow principle with and without dual-zone return stratification of the storage tank. ADVANAGES Compact and versatile Models: with and without circulation pump, dual-zone return stratification Cascading possible Secure Integration in building control system via optionally available ModBus RU interface Integrated safety subassembly and soft-close valves Simple Valves and components are fully preassembled as well as fully wired ready for connection Efficient High transmission performance and low pressure loss thanks to microplate plate heat exchanger DESCRIPION he acoherm Fresh Peta (C/CL) fresh water station is used for on-demand preparation of domestic hot water in accordance with the continuous flow principle. It retrieves the heat from the storage tank of an existing or new heating system, which uses solid-fuel boilers, heat pumps, solar systems, etc. as a heat source. he station replaces the storage of hot drinking water and thus provides a high degree of protection against Legionella by avoiding water stagnation. INSALLAION POSIION Vertical wall-mounting in the vicinity of the hot water storage tank or on the tank itself. OPERAION Drinking water is heated to the defined dispensing temperature in the acoherm Fresh Peta (C/CL) in accordance with the continuous flow principle. he integrated heat exchanger is supplied with as little hot water from the storage tank as is required to maintain a constant dispensing temperature. A low return temperature of the heating water to the storage tank can be expected owing to the special design of the heat exchanger. In recording the temperature difference and flow rate data, the electronic regulator simultaneously records and stores the quantity of heat consumed. In addition to an additional circulation pump that can be installed, the acoherm Fresh Peta (C/CL) can also be supplied with a switching valve for dual-zone return stratification. he primary pump, circulation pump as well as load valve are controlled by the integrated regulator in accordance with specifications. SYSEM/BASIC DIAGRAM BUILDING CAEGORIES Apartment blocks Housing estates Multiple dwelling units Residential care facilities and hospitals Administration and service buildings Hotels and restaurants, industrial kitchens School buildings and sports facilities Commercial and industrial buildings, industrial facilities Facilities with partial use for example barracks, camping sites, etc.

2 ACOHERM FRESH PEA (C/CL) FRESH HO WAER SAION SPECIFICAION EX See ECHNICAL DAA General acoherm Fresh Peta controller with display Weight (empty):. kg Overall dimensions (incl. hood): W mm H mm D 1 mm Material Base plate: Galvanized sheet steel Hood: Varnished sheet steel Pumps: Primary: Cast iron Secondary: PPS (plastic, approved for drinking water) Valve housing: Brass Pipes: Primary/secondary DN, stainless steel 1. Circulation DN, stainless steel 1. Microplate plate heat exchanger: Plates and connector pieces: Stainless steel 1.1 Heat exchanger solder:. % copper (on request: stainless steel solder) Seals: AFM flush seal Primary side Operating temperature O max : C Operating pressure P O max : bar Primary pump: Grundfos UPML - Secondary side Operating temperature O max : C Operating pressure P O max : bar Safety valve (intrinsic safety): bar discharge pressure and bar closing pressure Circulation pump: Grundfos UPM Auto L 1- CIL Electrical connection data Mains voltage: VAC ± % Mains frequency:... Hz Power consumption: max. W. A fuse ebus interface Protection type: IP Flow media Heating water (VDI ; SWKI B -1; ÖNORM H 1 1) Cold water YPE OVERVIEW acoherm Fresh Peta, Peta C and Peta CL Fresh hot water station Order no. Rp Version Version.. 1 ¼" I Without circulating pump, without dual-zone return stratification.. 1" I / With circulating pump, C 1 ¼" I without dual-zone return stratification.. DIMENSIONAL DRAWING E DN DN A 1 DN D 1 PW PRODUC DIAGRAM 1" I / 1 ¼" I D IG 1-1/" IG 1-1/" B 1C DN DN CL With circulating pump and dual-zone return stratification APPROVALS / CERIFICAES Components in contact with potable water comply with UBA Evaluation Criteria //1 and Directive (EU) 1/1 1 Primary hot water flow Primary hot water return 1 (integration of storage tank below) Primary hot water return (integration of storage tank in center in CL models) Circulation (C/CL version) (1") Cold water connection Hot water connection Primary pump Circulation pump (C/CL version) Flow rate sensor Safety valve Heat exchanger Regulator 1 Switching valve (CL version)

3 ACOHERM FRESH PEA (C/CL) FRESH HO WAER SAION FLOW AND PRESSURE LOSS DIAGRAMS COLD WAER HEAING A K (... C) D) Secondary pressure loss C) Return temperatures C 1 1 Secondary pressure loss Secondary pressure loss in circulation Pump curve, DHW circulation stage 1 Pump curve, DHW circulation stage Pump curve, DHW circulation stage Pump curve, DHW circulation stage Pump curve, DHW circulation stage Pump curve, DHW circulation stage Pump curve, DHW circulation stage * If a higher primary flow temperature (> C) is anticipated (e.g. with solar thermal/wood combustion systems), it is recommended that a thermostatic mixing valve (NovaMix Value) be installed in the primary flow of the domestic hot water station. Return temperature ( C) C C 1 A) Cold water heating at K B) Residual head Primary pressure loss C C C* ( p) Output kw 1 kw 1 EXAMPLE FOR INERPREING HE FLOW RAE AND PRESSURE LOSS DIAGRAMS Given Hot water dispensing volume: l/min Primary heating flow temperature: C Sought Primary heating return temperature in C Secondary pressure loss in mbar Primary pressure loss in mbar Approach In Diagram A) the hot water demand at the intersection point of the dispensing volume of l/min and primary flow temperature of C is l/h. In Diagram B) the primary pressure loss for a hot water demand of l/h is mbar. he pump delivery head is mbar, discounting the pressure loss this gives rise to a residual pump head of mbar (Δp). In Diagram C) the primary return temperature for a given dispensing volume of l/min and the selected flow temperature of C is 1. C. In Diagram D) the secondary pressure loss for the given data is mbar

4 ACOHERM FRESH PEA (C/CL) FRESH HO WAER SAION FLOW AND PRESSURE LOSS DIAGRAMS COLD WAER HEAING A K (... C) acoherm Fresh Peta CL D) Secondary pressure loss Druckverlust Sekundär C C C kw erlust mbar Druckve Druckverlus t sek. Druckverlus t Zirkula on Zirkula onp umpe UPM Pump curve, DHW circulation stage * If a higher primary flow temperature (> C) is anticipated (e.g. with solar thermal/wood combustion systems), it is recommended that a thermostatic mixing valve (NovaMix Value) be installed Zapfmenge l/min C) Return temperatures Rücklau emperaturenin the primary flow of the domestic hot water station. R C C C 1 1 C 1 C 1 C 1 1 C 1 1 C C 1 1 C C 1 C C C Zapfmenge l/min Kaltwassererwärmung um K (- C) Res örderhöhe A) Cold water heating at K B) Residual head Primary pressure loss C Return temperature ( C) 1 ter/h peratur C Rücklau emp C C C C C C C C* C 1 Secondary pressure loss Secondary pressure loss in circulation Pump curve, DHW circulation stage 1 Pump curve, DHW circulation stage Pump curve, DHW circulation stage Pump curve, DHW circulation stage Pump curve, DHW circulation stage Pump curve, DHW circulation stage kw Heizwasserbedarf Li C Leistung KW k Heizwasserbedarf Liter/h 1 mbar l/min 1 Pressure loss (l/min) Grundfos UPML - l/h. p NOE REQUIREMENS FOR FLOW MEDIA he stations heat interface units use a copper-soldered stainless steel plate heat exchanger as standard. It must be checked prior to use in the framework of system planning whether the issues of corrosion protection and scale formation have been sufficiently taken into account in accordance with DIN 1 and current drinking water analyses according to DIN EN. See datasheet Plate Heat Exchanger Requirements - Limit Values for Drinking Water Quality.

5 ACOHERM FRESH PEA (C/CL) FRESH HO WAER SAION ACCESSORIES CASCADE CIRCUIRY Order no. Rp Description.. Basic construction kit.1. Extension kit.. Second zone valve for basic construction kit (sequence switching operation).. 1 ¼" External storage restratification.. " External storage restratification..1 External circulation.. ModBus RU interface.. RC interface SAMPLE ORDER CASCADE MODULE WIH SEQUENCE CHANGEOVER Cascade circuit with integrated circulation and storage stratification Order no. -way cascade -way cascade -way cascade -way cascade * 1*.1. 1 * * Cascade circuit with external circulation and external storage stratification Order no. -way cascade -way cascade -way cascade -way cascade * 1*.1. 1 * * * * Attention: Note pressure losses in the cascade pipe sets and diverting valves. Subject to modification. /1 CONAC AND FURHER INFORMAION ACONOVA.COM aconova Group AG Neunbrunnenstrasse CH- Zurich +1 F +1 group@taconova.com