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7

GENERAL FEATURES

Control system

FS

The controller is able to manage up to 

two zones in heating

(one by means of a mixed circuit and the other by means of a

direct circuit) and 

one zone in cooling

(by means of a mixed

circuit).
It’s possible to realize more complex plants connecting to the

heat  pump  controller  further  expansion  modules  in  order  to

extend without limits the number of zones to be managed.

For each zone the following parameters can be set :
- set point
- daily or weekly operating time table
- climatic control curve
- room control sensor : it can be in common with the other

zones or independent (in that case it’s necessary to install

an additional room thermostat)

The microprocessor controller is able to manage not only the

unit itself but also all that components of the plant which allow

to realize a complete system.
The main 

functions

of the control system are :

- room temperature control according to the outdoor tempe-

rature (climatic control)

- domestic  hot  water  production  (management  of  3  way

valve, storage tank, anti legionella cycles…)

- management  of  a  heating  and/or  cooling  mixed  circuit

(pump and 3 way mixing valve)

- management of a heating direct circuit (only pump)
- management of a storage tank for heating and/or cooling
- management of electrical heaters for heating and dome-

stic hot water (3 steps logic)

- solar panels integration
- room humidity control for cooling with radiant systems
- internal programmer clock (for heating, cooling and dome-

stic hot water)

- digital input for electrical energy low tariff
- alarm memory management and diagnostic
- compressor and pump operating hour counter
- possibility to manage more units in cascade (maximum 16)

Besides  the  user  interface  of  the  unit  to  be  placed  indoor,

wired  or  wireless  remote  thermostats  are  available  which

allow  to  control  all

the operating para-

meters  of  the  unit

and  to  acquire  the

temperature  in  the

different  zones  in

order  to  realize  a

more  precise  and

comfortable  con-

trol.

The  unit  controller

is  able  to  manage

a  lot  of  different

plant 

solutions

enabling  automati-

cally the necessary

control  algorythms

according  to  the

components  which

have been connec-

ted.  The  manage-

ment  of  such  components  is  possible  through  additional

expansion  modules  which  communicate  with  the  unit  by

means of an internal bus and provide all the inputs and out-

puts required to fulfil a complete system.

 

 

Room temperature

20

.

5 C

18

:

28

Содержание HXA SERIES

Страница 1: ...HXA AIR WATER HEAT PUMPS FOR OUTDOOR INSTALLATION TECHNICAL MANUAL R410A ...

Страница 2: ...2 ...

Страница 3: ...TROL SySTEM 7 OPTIONS 8 ACCESSORIES 9 TECHNICAL DATA AND PERFORMANCES 10 TECHNICAL DATA 10 NOMINAL PERFORMANCES LOW TEMPERATURE PLANTS 11 NOMINAL PERFORMANCES MEDIUM TEMPERATURE PLANTS 11 HEATING PERFORMANCES 12 COOLING PERFORMANCES 13 PLANT SIDE HyDRAULIC PERFORMANCES 14 OPERATING LIMITS 16 ELECTRICAL DATA 17 NOISE LEVELS 17 WEIGHTS 18 OVERALL DIMENSIONS 18 MINIMUM OPERATING AREA 18 ...

Страница 4: ...4 ...

Страница 5: ...rnal programmer clock allows to define different daily switching programs for heating cooling and domestic hot water production The refrigerant circuit contained in a compartment protected from the air flow to simplify the maintenance operations is equipped with rotary or scroll compressor according to the model mounted on damper supports brazed plate heat exchanger thermostatic expansion valve re...

Страница 6: ...lizer allows the unit to adjust itself to the dif ferent operating conditions keeping steady the set superhea ting The refrigerant circuit of each unit contains moreover solid core hermetic filter dryer 5 to restrain impurity and moistu re residuals that could be present in the circuit high and low pressure switches in order to assure the compressor to ope rate inside the permitted limits 4 way re...

Страница 7: ...d circuit pump and 3 way mixing valve management of a heating direct circuit only pump management of a storage tank for heating and or cooling management of electrical heaters for heating and dome stic hot water 3 steps logic solar panels integration room humidity control for cooling with radiant systems internal programmer clock for heating cooling and dome stic hot water digital input for electr...

Страница 8: ...ent The controller flexibility and the big number of options available allow to get for each model a lot of diffe rent configurations that integrate inside the heat pump many components of the plant and allow to realize compact and tested installations In order to select the right configuration it is neces sary to define the type of plant to which the heat pump will be connected both for what conc...

Страница 9: ...less transmitter Connected to the unit controller allows to communicate with wireless remote control and wireless outdoor temperature sensor Wireless repeater Extends wireless operating range Wireless adaptor for out door temperature sensor Allows to transform the wired outdoor temperature sensor standard for all the units in a wireless sensor Condensate sensor In cooling mode it allows the minimu...

Страница 10: ...il finned coil Quantity 1 1 1 1 1 1 n Frontal surface 0 60 0 60 0 77 0 77 0 98 0 98 m2 Fans Type axial axial axial axial axial axial Quantity 1 1 1 1 2 2 n Diameter 450 450 500 500 500 500 mm Maximum rotational speed 900 900 900 900 900 900 rpm Toatal installed power 0 15 0 15 0 21 0 21 0 42 0 42 kW Plant side hydraulic circuit Expansion vessel volume 10 10 10 10 10 10 l Plant pump standard option...

Страница 11: ...kW Power input 2 22 2 71 3 38 4 01 5 06 6 25 kW COP 3 05 2 90 2 94 2 92 3 04 2 91 Water flow rate plant side 1154 1339 1690 1981 2612 3090 l h Pressure drops plant side 18 24 35 45 48 43 kPa Heating A2W45 source air in 2 C d b 1 C w b plant water in 40 C out 45 C Heating capacity 5 60 6 50 8 21 9 61 12 7 15 1 kW Power input 2 19 2 68 3 33 3 94 4 97 6 16 kW COP 2 56 2 43 2 47 2 44 2 56 2 45 Water f...

Страница 12: ...in order to obtain the real performances in the selected opera ting conditions The reference nominal condition is A7W35 source air in 7 C d b 6 C w b plant water in 30 C out 35 C HEATING performances Outlet temperature plant side A 55 C B 45 C C 35 C D 25 C Heating capacity Inlet air temperature w b C Power input Inlet air temperature w b C 0 4 0 6 0 8 1 0 1 2 1 4 1 6 1 8 2 0 15 10 5 0 5 10 15 20 ...

Страница 13: ... air temperature d b C 0 4 0 6 0 8 1 0 1 2 1 4 1 6 1 8 2 0 15 20 25 30 35 40 45 50 EER Inlet air temperature d b C The graphs allow to get the corrective factors to be applied to the nominal performances in order to obtain the real performances in the selected opera ting conditions The reference nominal condition is A35W7 source air in 35 C d b plant water in 12 C out 7 C Outlet temperature plant ...

Страница 14: ...1 8 1 Pressure drops unit without options 0 10 20 30 40 50 60 0 500 1000 1500 2000 2500 3000 3500 4000 Flow rate l h Pressure drops kPa Pressure drops to be added unit with option Integrative electrical heaters 7 1 Plant side hydraulic performances The graphs are referred to units operating with water at the temperature of 10 C density 1000 kg m3 ...

Страница 15: ...side flow rate management Standard pump 0 20 40 60 80 100 120 140 160 180 0 500 1000 1500 2000 2500 3000 3500 4000 Flow rate l h Available static head kPa Available static head unit with option Plant side flow rate management High head pump 10 1 12 1 18 1 15 1 8 1 7 1 18 1 15 1 12 1 10 1 8 1 7 1 The graphs are referred to units operating with water at the temperature of 10 C density 1000 kg m3 ...

Страница 16: ...the correct working of the unit is guaranteed HEATING Inlet air temperature d b C Outlet temperature plant side C Operating limits 5 0 5 10 15 20 25 30 35 40 45 25 20 15 10 5 0 5 10 15 20 25 30 35 40 45 50 COOLING Inlet air temperature d b C Outlet temperature plant side C Temperature difference between unit inlet and outlet Plant side T max Maximum value 11 C T min Minimum value 3 C ...

Страница 17: ...230 1 50 230 1 50 230 1 50 230 1 50 V ph Hz F L A Maximum total current input 13 4 17 1 22 0 24 8 A F L I Maximum total power input 2 9 3 7 4 7 5 3 kW M I C Maximum total start current 82 112 141 174 A Maximum total start current with soft starter option 41 43 49 59 A Power supply 400 3N 50 400 3N 50 400 3N 50 400 3N 50 V ph Hz F L A Maximum total current input 8 1 9 0 11 1 13 9 A F L I Maximum to...

Страница 18: ...andard pump 7 7 7 7 14 14 kg High head pump 9 9 14 14 15 15 kg Integrative electrical heaters 5 5 5 5 5 5 kg Rispect the free area around the unit as shown in figure in order to guarantee a good accessibility and facilitate maintenance and control operations Minimum operating area Overall dimensions B C A A 400 mm B 600 mm C 200 mm 1 Plant return 2 Plant return with Plant side flow rate management...

Страница 19: ...s all the responsabilities regarding inaccuracies contained in this manual if due to printing or typing mistakes The manufacturer reserves the right to apply changes and improvements to the products at any time and without notice ...

Страница 20: ...Ferroli spa 37047 San Bonifacio Verona Italy Via Ritonda 78 A tel 39 045 6139411 fax 39 045 6100933 www ferroli it 3QE26662 ...

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