30RH Air-to-Water Heat Pumps AQUASNAP JUNIOR. Nominal cooling capacity kw Nominal heating capacity kw

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1 Air-to-Water Heat Pumps AQUASNAP JUNIOR RH 5-13 Nomial coolig capacity kw Nomial heatig capacity kw This ew geeratio of heat pumps features the latest techological iovatios, icorporatig scroll compressors ad operatig o the ozoe-friedly refrigerat HFC-4A. The RH heat pumps from Carrier have a itegrated hydroic module, with pump ad expasio tak, limitig the istallatio to simple operatios like coectio of the power supply ad the water supply ad retur pipig. A electroic, microprocessor-based auto-adaptive cotrol system esures itelliget cotrol of the compressor startup sequece, permittig operatio at low system water volumes. Features Refrigerat R-4A is a bled of R-32 ad R-125, esures superior performaces to those achieved with R-22 ad offers a ecoomical solutio to evirometal protectio problems. It has o effect o the ozoe layer ad ca be used as a replacemet for R-22 i air coditioig applicatios with small ad medium capacities. The compoets of these uits are specifically desiged for R-4A refrigerat, ad all uits have bee submitted to the ecessary laboratory tests to esure perfect operatio. The uit icorporates oe or two two-speed axial fas with horizotal air discharge. The advaced desig allows exceptioally low-oise operatio. At part load coditios or at low outdoor temperatures the fa speed is automati- cally reduced by %, for eve quieter operatio. The cotrol system also permits programmig operatio at reduced speed for a preset time period. The compact dimesios ad reduced weight of these uits facilitate istallatio, eve i very restricted spaces. The use of galvaised steel paels guaratees icreased resistace to atmospheric coditios. These compoets have exceeded the striget salt-spray corrosio resistace tests accordig to ASTM 117, with over hours exposure to aggressive eviromets. The paels are removable for improved service ad easier access to the iteral compoets. The codeser coils are made of copper tubes, mechaically expaded ito alumiium fis, with a icreased heat exchage surface. The refrigerat-to-water heat exchagers are plate heat exchagers, esurig optimum heat trasfer at reduced dimesios. The plates are made of welded stailess steel. This heat exchager type requires less refrigerat tha traditioal heat exchagers of the same capacity. Scroll compressors ru very quietly ad vibratio-free. They are kow for their durability ad reliability. The motors are fully cooled by suctio gas ad permit up to 12 starts per hour. These compressors are especially desiged for operatio with R-4A. Microprocessor-cotrolled automatic outdoor heat exchager defrost cycles allow the uit to operate with high efficiecy at low outdoor temperatures.

2 The hydroic compoets are factory-istalled. This elimiates the eed to istall the compoets o site. The hydroic kit icludes: - a flow switch - a expasio tak - a three-speed circulatig pump - a maual purge valve - a water drai valve - a safety valve PRO-DIALOG Plus cotrol is auto-adaptive for improved heat pump protectio. Compressor cyclig is automatically adapted to the characteristics of the applicatio accordig to the iertia of the water loop ad prevets dagerous compressor short cyclig. The itegrated CCN Clock Board offers additioal uit fuctios: - CCN protocol iterface for complete coectivity ad compatibility with the Carrier CCN etwork - Real-time clock PRO-DIALOG Plus cotrol system PRO-DIALOG Plus is a advaced umeric cotrol system that combies complex itelligece with great operatig simplicity. PRO-DIALOG Plus costatly moitors all machie parameters ad safety devices, ad precisely maages the operatio of compressor ad fas for optimum eergy efficiecy. It also cotrols the operatio of the water pump. A powerful cotrol system The PID cotrol algorithm with permaet compesatio for the differece betwee eterig ad leavig water temperature, aticipates load variatios, ad esures itelliget leavig water temperature cotrol. Dual set poit: two differet supply water temperature set poits ca be maually programmed or selected, accordig to the thermal load expected durig the course of the day i the zoes to be air coditioed. This always esures maximum comfort at miimum eergy cosumptio. With this board istalled ad usig a CCN tool (for example the accessory Service Iterface tool) ew ad more advaced fuctios are available: Time schedulig of the uit with up to eight sequeces, cascade operatio of two uits, remote cotrol ad programmig of the fa operatig time at low speed. Remote cotrol system The remote cotrol system, wired to the uit located outside, permits easy user cotrol of the pricipal uit fuctios: start/stop cotrol, selectio of the desired temperature at reduced eergy cosumptio, geeral alarm display. The remote cotrol was desiged for idoor use i residetial ad/or commercial applicatios. Remote cotrol Accessories Remote cotrol Service iterface Mechaical water filter Accessory x x x

3 Physical data RH Nomial coolig capacity* kw / Nomial heatig capacity** kw / Operatig weight kg Refrigerat type kg R-4A R-4A R-4A R-4A R-4A Compressor lectrical data Oe scroll compressor Refrigerat-to-water heat exchager Oe plate heat exchager Net water volume l Max. water-side operatig pressure Hydraulic circuit Pump Oe three-speed pump Available pressure*** 46 35/ Water ilet/outlet coectios i xpasio tak volume l Fas Oe or two propeller fas Number of fas/diameter mm 1/37 1/37 1/37 2/37 2/37 No. of blades Fa speed r/s Soud pressure level db(a) Soud power level db(a) * Based o urovet coditios: evaporator eterig/leavig water temperature 12 C/7 C, codeser eterig air temperature of 35 C. ** Based o urovet coditios: codeser eterig/leavig water temperature C/45 C, evaporator eterig air temperature of 7 C db/6 C wb. *** At omial flow ad high pump speed The first value is for sigle-phase uits, the secod value for three phase uits Soud pressure level is measured at m distace. RH Power supply V-ph-Hz Voltage rage V Nomial power iput Coolig* kw Heatig** kw Maximum power iput*** kw Locked rotor curret A Full load curret A Water circulatig pump (2-1-) Curret draw A Fa motor (2-1-) Curret draw A Compressor crakcase heater (2-1-) Curret draw A * Based o urovet coditios: evaporator eterig/leavig water temperature 12 C/7 C, codeser eterig air temperature of 35 C. ** Based o urovet coditios: codeser eterig/leavig water temperature C/45 C, evaporator eterig air temperature of 7 C db/6 C wb. *** Maximum uit power iput at maximum operatig coditios ad worst power supply voltage. Operatig limits Operatig rage - coolig Start-up leavig water temperature 35 C max. Operatig rage - heatig Start-up leavig water temperature 3 C Leavig water temperature, C Leavig water temperature, C Outdoor air temperature, C Outdoor air temperature, C

4 Coolig capacities RH Codeser eterig air temperature, C LWT COOL PRS COOL PRS COOL PRS COOL PRS COOL PRS C kw kw kw l/s kw kw kw l/s kw kw kw l/s kw kw kw l/s kw kw kw l/s Values for size 7-7 are for sigle-phase uits, values for size 7-9 are for three-phase uits Leged: LWT Leavig water temperature kw Net coolig capacity = gross coolig capacity plus the capacity correspodig to the available pressure (flow x pressure/.3). kw Compressor power iput kw Uit power iput (compressors, fas, cotrol circuit ad pumps) mius the capacity correspodig to the available pressure (flow x pressure/.3). COOL l/s vaporator water flow rate PRS Available pressure at the uit outlet (uit with sigle-pump hydroic module) Full load correctio factors for urovet laboratory test: Net coolig capacity 1. ergy efficiecy ratio 1. vaporator pressure drop 1. Applicatio data: Refrigerat: R-4A vaporator temperature rise: 5 K vaporator fluid: chilled water Foulig factor:.44 m 2 K/W Capacity based o stadard UROVNT coditios The published performaces are i accordace with UROVNT toleraces: - 5% for heatig ad coolig capacities + 5% for power iput +15% for the pressure drop

5 Heatig capacities RH terig air temperature, C LWT PRS PRS PRS PRS PRS Itegr Ist. Itegr Ist. Itegr Ist. Itegr Ist. Itegr Ist. ºC kw kw kw kw l/s kw kw kw kw l/s kw kw kw kw l/s kw kw kw kw l/s kw kw kw kw l/s Values for size 7-7 are for sigle-phase uits, values for size 7-9 are for three-phase uits Leged: LWT Leavig water temperature Itegr. kw Itegrated heatig capacity Ist. kw Net omial heatig capacity (istataeous capacity) = gross heatig capacity mius the capacity correspodig to the available pressure (flow x pressure/.3). kw Compressor power iput kw Uit power iput, (compressors, fas, cotrol circuit ad pumps) mius the capacity correspodig to the available pressure (flow x pressure/.3). l/s Codeser water flow rate PRS Available pressure at the uit outlet (uit with sigle-pump hydroic module) Full load correctio factors for urovet laboratory test: Net heatig capacity 1. ergy efficiecy ratio 1. Heat exchager pressure drop 1. Applicatio data: Refrigerat: R-4A Codeser temperature rise: 5 K Codeser fluid: water Foulig factor:.44 m 2 K/W Capacity based o stadard UROVNT coditios The published performaces are i accordace with UROVNT toleraces: - 5% for heatig ad coolig capacities + 5% for power iput +15% for the pressure drop

6 Dimesios A Power coectio Power coectio A B B H G H G D D C F C F RH RH RH A mm B mm C mm D mm mm F mm G mm H mm Water coectios Water ilet, uit ø 1" gas female 2 Water outlet, uit ø 1" gas female 3 Drai 4 Air purge 5 Drai safety valve ø 1/2" gas female 5

7 Clearaces A D B C A D F F RH 5-13 A mm B mm 2 C mm D mm mm 67 F mm System water flow rate/volume RH Nomial water flow rate l/s System water volume l Miimum* Maximum * If the water cotet is below the idicated value, a buffer tak must be added. Soud power levels (db) RH 125 Hz 2 Hz Hz Hz Hz Hz 8 Hz db(a)

8 Total pressure available RH RH RH RH RH Leged: III high speed II medium speed I low speed Water temperature C Order No. 121-, 2.5. Supersedes order No.: 121-, Maufacturer reserves the right to chage ay product specificatios without otice. Maufactured by Carrier Villasata, Italy. Prited o Totally Chlorie Free Paper. Prited i the Netherlads.