CHA/IK/TR/A 18÷35

A CLASS energy efficiency aircooled reversible Heat Pumps with EC Inverter axial fans, Inverter Rotary compressor, plate exchanger and hydronic kit

The reversible Heat Pumps CHA/IK/TR/A 18÷35, in A CLASS energy efficiency, are designed for small domestic or service sector environments. Equipped with R410A refrigerant, Inverter Rotary compressor with DC BRUSHLESS motor and EC INVERTER axial fans, they are extremely functional and reliable units. The Inverter device controls and continuously modulates the compressor speed, keeping the temperature of the water delivered to the system stable and constant and adapting it perfectly to the thermal load of the places where terminal units it feeds are installed. This obtains high energy efficiencies and SCOP values higher than conventional units, and a reduction of compressor starting peak currents, thus considerably reducing the risk of malfunctioning or breakages. The EC Inverter axial fans vary their speed according to the required thermal load, with consequent benefits in terms of energy efficiency and silent operation.
The units are designed for hot water production up to 55°C.
The units are compliant to the ErP Regulation.

Versions

CHA/IK/TR/A - Reversible Heat Pump

Power range

5.2-8.2 kW
1.5-2.3 Ton

Features

Structure with supporting frame, made of galvanised sheet metal with additional protection provided by polyester powder coating.
DC INVERTER Rotary compressor, with DC BRUSHLESS motor, complete with overload protection.
EC INVERTER axial fans with low ventilation and special wing profile, directly coupled to external rotor motors.
Condenser with copper tube and aluminium finned coil, complete with condensate drain pan and protection guards.
Evaporator plate-type AISI 316 stainless steel, equipped with antifreeze heater.
Electronic expansion valve.
R410A refrigerant.
Electrical board includes: main switch with door lock device, fuses, compressor and pump remote control switch.
Electronic proportional device to decrease the sound level, with a continuous regulation of the fan speed. This device also allows the cooling functioning of the unit by external temperature till -20 °C.
Functioning in heating mode with outside air temperature down to -20 °C.
Water circuit includes: circulator with high efficiency DC BRUSHLESS motor, flow switch, safety valve, gauge and expansion vessel.
Microprocessor control and regulation system.
Advanced functions: remote set-point with 0-10V signal, remote set-point with 4-20mA signal, remote signal for second set-point activation, demand limit from digital input, management of hybrid systems, management of domestic hot water production.
Communication with Modbus RTU protocol through RS485 serial interface.

Accessories

Loose accessories

CD Room thermostat with unit visualization
CDT Touch screen room thermostat with unit visualization
AG Rubber shock absorbers

Technical data

			18	25	35
Heating	Heating capacity (1)	kW	5,18	6,05	8,16
	Absorbed power (1)	kW	1,56	1,95	2,56
	COP (1)		3,32	3,11	3,19
	Heating capacity (2)	kW	6,10	7,36	9,82
	Absorbed power (2)	kW	1,47	1,97	2,52
	COP (2)		4,15	3,74	3,90
Heating (EN14511)	Heating capacity (1)	kW	5,14	5,98	8,03
	Absorbed power (1)	kW	1,48	1,87	2,45
	COP (1)		3,48	3,20	3,28
	Heating capacity (2)	kW	6,05	7,23	9,71
	Absorbed power (2)	kW	1,39	1,85	2,42
	COP (2)		4,35	3,90	4,02
	SCOP (3)		4,50	4,34	3,96
	Energy Efficiency (3)	%	177	171	155
	Energy Class (4)		A+++	A++	A++
	SCOP (5)		3,23	3,13	2,93
	Energy Efficiency (5)	%	126	122	114
	Energy Class (6)		A++	A+	A+
Cooling	Cooling capacity (7)	kW	4,72	5,46	8,34
	Absorbed power (7)	kW	1,73	2,12	3,05
	EER (7)		2,73	2,58	2,73
	Cooling capacity (8)	kW	4,90	5,96	8,98
	Absorbed power (8)	kW	1,34	1,68	2,40
	EER (8)		3,66	3,55	3,74
Cooling (EN14511)	Cooling capacity (7)	kW	4,76	5,58	8,42
	Absorbed power (7)	kW	1,66	2,04	2,92
	EER (7)		2,86	2,74	2,88
	Cooling capacity (8)	kW	5,00	6,03	9,10
	Absorbed power (8)	kW	1,26	1,58	2,27
	EER (8)		3,96	3,81	4,01
	SEER (9)		5,59	4,82	5,61
	Energy Efficiency (9)	%	221	190	221
Electrical characteristics	Power supply	V/Ph/Hz	230/1/50	230/1/50	230/1/50
	Max. running current	A	14	19	20
	Max. starting current	A	7	10	10
Compressor	Quantity	n°	1	1	1
Water circuit.	Water flow	l/s	0,29	0,35	0,46
	Pump available static pressure	kPa	67	60	53
	Water connections	"G	1"	1"	1"
Sound pressure	(10)	dB(A)	50	55	55
Weights	Transport weight	kg	78	79	103
Weights	Operating weight	kg	70	71	94

Dimensions

			18	25	35
L	STD	mm	1050	1050	1160
W	STD	mm	290	290	330
H	STD	mm	685	685	890

Notes

1 Heated water from 40 to 45 °C, ambient air temperature 7 °C d.b./6 °C w.b.
2 Heated water from 30 to 35 °C, ambient air temperature 7 °C d.b./6 °C w.b.
3 Seasonal energy efficiency of heating at low temperature with average climatic conditions. According to EU Regulation n. 813/2013.
4 Seasonal energy efficiency class of heating at low temperature with average climatic conditions. According to EU Regulation n. 811/2013.
5 Seasonal energy efficiency of heating at medium temperature with average climatic conditions. According to EU Regulation n. 813/2013.
6 Seasonal energy efficiency class of heating at medium temperature with average climatic conditions. According to EU Regulation n. 811/2013.
7 Chilled water from 12 to 7 °C, ambient air temperature 35 °C.
8 Chilled water from 23 to 18 °C, ambient air temperature 35 °C.
9 Seasonal energy efficiency of cooling at low temperature. According to EU Regulation n. 2016/2281.
10 Sound pressure level measured in free field conditions at 1 m from the unit. According to ISO 3744.