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Instructions for Installation,
Servicing and Use

External Air Source Heat Pump Water Heater

Country of Destination: GB/IE

NUOS FS 200
NUOS FSi 250

Содержание NUOS FS 200

Страница 1: ...1 1 Instructions for Installation Servicing and Use External Air Source Heat Pump Water Heater Country of Destination GB IE NUOS FS 200 NUOS FSi 250 ...

Страница 2: ...g oil in the refrigeration circuit is correctly placed in order to avoid the compressor becoming damaged IMPORTANT Failure to follow these instructions correctly may invalidate the guarantee IMPORTANT The NUOS External Air Source Heat Pump Water Heater is an UNVENTED HOT WATER SYSTEM Unvented domestic hot water heating systems must be installed to comply with the current Building Regulations Briti...

Страница 3: ...EGULATIONS 20 5 6 WATER REGULATIONS 20 5 7 BUILDING REGULATIONS 20 5 8 IEE WIRING REGULATIONS BRITISH STANDARDS 20 5 9 WIRING LAYOUT 21 5 10 MAINBOARD LAYOUT 22 6 INSTALLATION 23 6 1 LOCATION OF THE APPLIANCE 23 6 2 AIR SUPPLY 23 6 3 EXHAUST AIR 24 6 4 AIR DUCT STATIC LOSS 24 6 5 INSTALLING PROCEDURE 25 6 6 ELECTRICAL CONNECTION 25 6 7 BATHROOM ZONES 26 6 8 COMBINATION VALVE 26 6 9 WATER CONNECTIO...

Страница 4: ...for any damage due to faulty installation improper or incorrect use or uses that are not reasonably predictable The guarantee is subject to 1 The appliance being correctly installed and commissioned as detailed in this manual 2 The appliance being annually serviced as detailed in this manual This appliance is intended for the production of domestic hot water at temperatures up to 65 C The applianc...

Страница 5: ...r must carefully read the instructions and precautions contained in this manual as they provide important information for both their areas of competence regarding safety installation use and maintenance of the appliance This manual is divided into sections Section 1 General Information This section is intended for both installers and users of the NUOS It contains general information for the applia...

Страница 6: ...ater therefore giving 2 0kW of free energy 1 7 EFFICIENCY FAN The fan draws air through the heat exchanger The cool refrigerant is heated by the ambient or external air temperature The refrigerant boils and turns to vapour The compressor increases the pressure of the refrigerant vapour causing it to significantly increase in temperature Heat from the hot pressurised refrigerant vapour is transferr...

Страница 7: ...room not ducted Exhaust air ducted to outside Example 2 NUOS installed in garage outhouse Inlet air from internal duct Exhaust air ducted to outside from side of unit Example 3 NUOS installed in compartment Inlet air from outside Exhaust air ducted to outside high level from top of unit ...

Страница 8: ...8 FIG 1 9A NUOS COMPONENTS IDENTIFICATION 1 9 NUOS COMPONENTS IDENTIFICATION ...

Страница 9: ...ng or more typically from outside The exhaust air for the appliance can be directly into the room or by using various ducting arrangements be ducted to another room or more typically to outside the dwelling 1 10 GENERAL LAYOUT 1 11 STORAGE VESSEL 1 12 HEATING ELEMENT 1 13 SUPPLY AIR 1 14 EXHAUST AIR FIG 1 14A AIR SUPPLY EXHAUST 1 NUOS Cylinder 2 Air Fan Outlet Side 3 Air Fan Outlet Top 4 Air Fan 5...

Страница 10: ...n the vessel and its expansion vessel When installing and servicing the appliance Ariston Thermo UK Ltd recommend the use of suitable protective clothing i e gloves It is recommended to use a sack barrow for lifting and moving the packaged NUOS Carrying the NUOS will require two fit persons Always follow the safe lifting guidelines as recommended by the Health And Safety Executive www hse gov uk I...

Страница 11: ... NUOS ON Press again to turn OFF Mode Button Press to select mode either Auto Boost and Green Voyage P1 P2 or P1 P2 if enabled Also press to exit from installer and information menus Control Knob User Turn knob clockwise to increase to desired set temperature Turn knob anticlockwise to decrease to desired set temperature Press and release knob and the current temperature of the water within the ta...

Страница 12: ...ress the ON OFF button The unit will turn ON in the same mode as when it was turned OFF i e Auto Boost Green Voyage P1 P2 or P1 P2 if enabled The NUOS has the following default settings on initial power up The desired temperature for the hot water is set using the Control knob refer to 3 1 The minimum temperature that can be achieved by the heat pump is between 40 C and 50 C this limit is set by p...

Страница 13: ...splayed 2 Turn control knob until the required number of days is displayed 3 Press control knob to confirm The display will show the number of holiday days remaining When the set number of days have passed the NUOS will produce hot water again in Auto mode Therefore to return home and have hot water available set one day less than the days away Program Mode Program mode is enabled disabled by inst...

Страница 14: ...a w l A C 5 6 5 5 s y a w l A n e e r G 4 P C 5 5 0 4 t s o r f e D l a i r e t c a b i t n A e g a y o V 6 P n i m C 5 t s o r f e D 7 P n i m C 5 d e r i u q e r n e h W l a i r e t c a b i t n A 5 P C 5 6 2 P d n a 1 P 1 1 P C 5 5 0 4 d e r i u q e r n e h W C 5 6 5 5 s y a w l A AUTO BOOST set set GREEN set VOYAGE set P1 set P2 set P1 P2 set set set set Set Temperature Set Mode Set Voyage Days...

Страница 15: ...e r r u c s y a l p s i D 0 1 L S O R F E D f f O r o n O n o i t c n u f n o i t c e t o r p t s o r f f o g n i t t e s s w o h S 1 1 L h P H C 1 r e t e m a r a p l a n r e t n i r o f r e t e M 2 1 L h E H C 2 r e t e m a r a p l a n r e t n i r o f r e t e M 3 1 L B M W S f e r n o i s r e v e r a w t f o s B C P n i a M 4 1 L I M H W S f e r n o i s r e v e r a w t f o s B C P e c a f r e t ...

Страница 16: ... e l b a n E n O e d o m n o i t c e t o r P t s o r F e h t s e l b a s i D f f O 9 P W _ E M I T s r u o h 4 2 o t s r u o h 5 S O U N e h t r o f s r u o h n o i t a r e p o f o r e b m u n d e t i m r e p e h t s t e S 0 1 P T E S E R s g n i t t e s t l u a f e d S O U N e h t f o g n i t t e s e r s e l b a n E b o n k l o r t n o c s s e r p d n a 0 1 P r e t e m a r a p t c e l e S 1 1 P G...

Страница 17: ...17 17 5 TECHNICAL DATA 5 1 DIMENSIONS FIG 5 1A DIMENSIONS ...

Страница 18: ...l 15l m 14 mbar Heat Pump Heat Rating 2 775 kW 2 775 kW Power Consumption 0 75 kW 0 75 kW COP see 1 7 3 7 3 7 Heating Time 3h 10min 3h 40min Heating Energy Consumed 2 2 kWh 2 7 kWh Max Water in Single Intake V40 55 C 260 litres 325 litres Max Water in Single Intake V40 62 C 348 litres 435 litres Max Water Temperature 55 C 55 C Max Current Consumption 3 amp 3 amp Expansion Valve Operating Pressure ...

Страница 19: ...250 Reheat Time T 45 C mins Heat Pump only Green Mode 100 capacity 236 mins 274 mins Heat Pump only Green Mode 70 capacity 181 mins Heat Pump Heater Boost Mode 100 capacity 140 mins Heat Pump Heater Boost Mode 70 capacity 114 mins Model time to raise 100 temp from 15 C to 65 C 152 mins Model time to raise 70 temp from 15 C to 65 C 124 mins Insulation Heat Loss 65ºC 2 06 kW 24hr 2 05 kW 24hr Ozone ...

Страница 20: ...al Authority by means of building notice or by the submission of full plans It is important to note that it is a criminal offence to install an unvented hot water storage system without notifying the LocalAuthority The installation of the unvented cylinder and hot water system must comply with BS 6700 and the HSE Legionella Code of Practice The appliance should be installed in accordance with the ...

Страница 21: ...LAYOUT FIG 5 9A WIRING LAYOUT 1 Power Supply 2 DHW NTC Sensor 3 Interface Board 4 Electric Heater Element 5 Electric Heater NTC Sensor 6 Evaporator Inlet Air NTC Sensor 7 Cylinder Earth Terminal 8 Serial Port 9 Mainboard 10 Compressor Condenser 11 Compressor 12 Fan 13 Defrost Hot Gas Valve 14 Gas Safety Pressure Switch 3 4 5 7 8 9 10 11 12 13 14 2 6 ...

Страница 22: ...OUT 1 2 3 4 5 6 7 8 9 A B C D E 2 1 Serial Port 2 Fan Connection A and B to 12V C Earth D and E 240V 3 Gas Safety Pressure Switch 4 DHW NTC Sensor Connection 5 Electric Heater Connection 6 Power Supply 7 Compressor Connection 8 Defrost Hot Gas Valve ...

Страница 23: ...nces that require ambient air e g conventional flue boilers gas fires and water heaters Only applies where air is drawn from a room or internal space 8 Study the water connections and electric supply and consider the plumbing and wiring layouts for optimum positioning of the unit 9 The TPRV PRV discharge pipe and condensate drain pipe must be plumbed to a suitable drain normally outside the dwelli...

Страница 24: ...ng away from the appliance The remaining duct can be installed horizontally or vertically The ducting must be adequately supported a bracket for each extension is recommended When terminating the exhaust air to the outside and drawing air from an internal space an air vent having a minimum free air space of 4000mm is required to the space where the air is being drawn Each duct accessory has a desi...

Страница 25: ...al strength of the wall will not be compromised as a direct result of the holes in the wall 8 Move NUOS away and cover to prevent damage from dust and debris 9 Make neat holes for ducting as applicable clean up and reposition NUOS 10 Secure the feet to the floor through the appropriate holes using suitable screws and rawlplugs after positioning the appliance remove the fabric belt by loosening the...

Страница 26: ...FIG 6 7A BATHROOM ZONES The NUOS appliance is rated IPX4 The NUOS unit can be installed in Zone 2 and Zone 3 However the switch fuse unit must be installed in Zone 3 The combination valve can be installed in any orientation The pipework must be flushed prior to fitting the valve to avoid damage to the valve WARNING No valves must be fitted between the combination valve and the NUOS WARNING No valv...

Страница 27: ...3 3 3 FIG 6 9A WATER CONNECTIONS SCHEMATIC 6 10 EXPANSION VESSEL INSTALLATION FIG 6 10A EXPANSION VESSEL INSTALLATION DO NOT install expansion vessel vertically with connection at the bottom A DO NOT connect via a vertical pipe above the combination valve B DO NOT use flexible hoses C Installing EV incorrectly can cause air to become trapped in the expansion vessel resulting in potential nuisance ...

Страница 28: ... provide a failsafe means of shutting off the solar input to the heat exchanger if the cylinder temperature should rise above the set temperature of the cylinder s energy cut out See Note 1 As with all unvented hot water systems notification of intention to install should be given to your local building control Option A A non self resetting mechanical shut off should be installed on the solar prim...

Страница 29: ...the stored water going over temperature the heat input to the cylinder is isolated by physical means and is non self resetting These systems should be clearly identified with reference to the approvals body See Note 2 Note 1 Whilst most solar cylinders use a coil type heat exchanger other options such as external plate to plate devices external annulars or tank in tank systems may be used but the ...

Страница 30: ...onnection to a water heating system such as a boiler as shown below A manual reset overheat stat is supplied fitted to the NUOS This stat should be wired so that in the event of over temperature in the NUOS s hot water system the thermostat breaks the electrical supply to the motorised valve which in turn mechanically closes preventing primary water entering the coil The overheat setting for the s...

Страница 31: ...ws or bends in the pipework see Diagram 1 and b be installed with a continuous fall thereafter of at least 1 in 200 3 56The discharge pipe D2 should be made of a metal or b other material that has been demonstrated to be capable of safely withstanding temperatures of the water discharged and is clearly and permanently marked to identify the product and performance standard e g as specified in the ...

Страница 32: ... 1 o t p u m 7 2 o t p u m 8 0 m 0 1 m 4 1 G m m 2 2 m m 8 2 m m 5 3 m m 2 4 m 9 o t p u m 8 1 o t p u m 7 2 o t p u m 0 1 m 4 1 m 7 1 1 G m m 8 2 m m 5 3 m m 2 4 m m 4 5 m 9 o t p u m 8 1 o t p u m 7 2 o t p u m 4 1 m 7 1 m 3 2 Table 1 Sizing of copper discharge pipe D2 for common temperature relief valve outlet sizes See 3 49 and 3 56 and Diagram 1 Note The above table is based on copper tube Pl...

Страница 33: ...system it should be at least one pipe size larger than the largest individual discharge pipe D2 to be connected 3 59The discharge pipe should not be connected to a soil discharge stack unless it can be demonstrated that the soil discharge stack is capable of safely withstanding temperatures of the water discharged in which case it should a contain a mechanical seal not incorporating a water trap w...

Страница 34: ... clearance when no duct is used Inlet and side exhaust and top exhaust B 100mm 300mm Suggested minimum clearance when duct is used Inlet and side exhaust and top exhaust C 100mm 300mm Suggested minimum rear clearance D 50mm 400mm Minimum above unit when no duct is fitted E 400mm 400mm Service clearance required for electric heater It is essential that the unit is level both horizontally and vertic...

Страница 35: ...alves and allow the NUOS to fill and let water pass through the system to the open hot tap this will expel most of the air from the system and fill the NUOS vessel 10 Close the hot tap 11 Check for leaks Typical drain arrangement and system designs will vary 1 Turn power off to ensure NUOS is not operated when empty 2 Turn off cold supply to NUOS 3 Shut off hot water feed from NUOS 4 Connect hose ...

Страница 36: ... vessel is fitted and that no valves are fitted between the expansion vessel and the combination valve 2 2 Check that no valves are fitted between NUOS and the combination valve 2 3 Check the PRV tundish and discharge pipes are correctly installed to conform to the Building Regulations G3 2 4 Check all pipe connections are tight and no joints have been left unsoldered 2 5 Check ALL drain cocks are...

Страница 37: ...hen fill and drain to flush as many times as recommended by the chlorination product manufacturer 5 3 Refill system STAGE 6 SETTING AND TESTING CONTROLS 6 1 Switch on NUOS electric isolating switch 6 2 For commissioning use the factory default settings no changes to parameters should be required 6 3 Set NUOS into operation and when hot check for leaks 6 4 Check operation of any open flue appliance...

Страница 38: ...sconnect wires and withdraw heating element C 4 Replace element and refit ensure wires are connected correctly To descale flange F or to replace the magnesium anode the flange F has to be removed by removing 5 bolts E this necessitates draining the cylinder see 6 20 CAUTION Removing flange screws E will release the stored water For wiring see 5 9 WARNING Where the room volume is less than the prac...

Страница 39: ... turned off and taps open check expansion vessel pressure and top up as necessary 8 Cylinder TPRV check its operation with the water supply on turn the TPRV test knob and check water discharges to tundish ensure the valve closes after testing 9 Combination Valve PRV check its operation with the water supply on turn the PRV test knob and check water discharges to tundish ensure the valve closes aft...

Страница 40: ...o t a r o p a v E N O N O t o n s i r o t a r o p a v e e h t t a h t k c e h C e c n a i l p p a e h t f f o n r u T d e k c o l b t o n e r a s t c u d d n a s d i r g e h t k c e h C d e t c u r t s b o r a e l c e r a d n a 5 H t l u a f n a F N O F F O l a c i s y h p o n e r a e r e h t t a h t y f i r e V e c n a i l p p a e h t f f o n r u T e h t k c e h c s e d a l b n a f f o t n e m e ...

Страница 41: ... n i t a e h r e v o m e t s y S t o h e b l l i w r e t a w e r a c e k a t p a t t o h n u r f f o r o s n e s r o d n a m e t s y s l o r t n o c e s u a c e l b i s s o P r o r r e g n i n o i t c n u f d e c u d e R p m u p t a e h e h t f o e g n a r f o t u o e r u t a r e p m e t r i A w o l o o t e u l a v W e m i T a r o e r u t a r e p m e t r e w o l r o f r e t e m a r a p a t e S W e...

Страница 42: ...n demonstrated to the customer Yes The manufacturer s literature including Benchmark Checklist and Service Record has been explained and left with the customer Yes DOMESTIC HOT WATER MODE Measure and Record Is the heat pump connected to a hot water cylinder Unvented Vented Thermal Store Not Connected Hot water has been checked at all outlets Yes Have Thermostatic Blending Valves been fitted Yes No...

Страница 43: ...43 43 ...

Страница 44: ...he appliance in accordance with the manufacturer s instructions 2 Your installer does not complete the necessary commissioning process and procedure as detailed in the Installation and Operating Instruction manuals 3 Your appliance is not serviced on or before the 12 month anniversary of installation 4 Our service engineer calls as requested and the failure is a non manufacturing defect Failure to...

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