Kolant air to water heating cooling heat pump 3.5KW to 9KW

Application Characteristics of Kolant Modular Heat Pumps in Residential District Heating/cooling and hot water supply

08/12/2025

Kolant EVI Inverter heat pump to replace boiler working at -35°C

08/20/2025

Product Description

Our heat pump is a new generation heat pump product developed with the most advanced heating technologies. The heat pump utilized the energy from surrounding air and converts it to the hot water for house air conditioning heating cooling and domestic hot water supply. The whole range of this heat pump is strictly tested with our European partners to make sure the best quality for European market. Especially for super low temperature area. The working ambient is -15 degree to 45 degree and keep supply of warm water from 35 degree to 60 degree.

We select the best well known components for our heat pump such as Mitsubishi, Panasonic compressor, Danfoss, Wilo water pump. It provide the most reliability to our customers.

Striking characters distinguish from other products

1.High efficiency and energy saving
2.Environmental friendly refrigerant
3.Keep working in super low temperature
4.Using step fan motor to make the accurate control
5.Water flow protection, pressure protection, temp protection keep the the system safety.

Other characters

1.Stainless steel plate heat exchanger with maximum pressure 40 bar
2.100% stainless water circuit to keep water clean
3.Microprocessor control and error alarm and display
4.Electric protection class IPX4
5.Compact design for good looking, easy installation and maintenance

Heat Pump Model		unit	KRS-35B	KLTW-42	KRS-50B	KRS-72B	KRS-90B
Power supply		Ph-V-Hz	220V~240V/1Ph/50Hz	220V~240V/1Ph/50Hz	220V~240V/1Ph/50Hz	220V~240V/1Ph/50Hz	220V~240V/1Ph/50Hz
Working temp		℃	-15℃~43℃	-15℃~43℃	-15℃~43℃	-15℃~43℃	-15℃~43℃
Max. outlet Water temp.		℃	60℃	60℃	60℃	60℃	60℃
Water Heating (A20/W55)	Heating capacity (A20/W15~55)	KW	3.8	4.3	5.4	7.6	9.5
	Hot water output	L/h	80	92	107	155	193
	Input (water pump included)	KW	0.9	0.981	1.28	1.79	2.31
	COP	W/W	3.89	4.38	3.91	4.02	3.9
	Rated current	A	3.97	3.99	5.8	8.23	11.17
cooling capacity/Power input(KW)	at A35/W18℃	KW/KW	3.3/1.15	3.8/1.3	5.1/1.76	7.1/2.4	8.5/2.2
Max. input consumption		KW	1.31	1.32	1.86	2.6	3.35
Max. input current		A	6.2	6.3	8.9	12.4	16
Starting current		A	18	19	28	35	61
Cabinet			galvanized cabinet of electrophoresis(EP)	galvanized cabinet of electrophoresis(EP)	galvanized cabinet of electrophoresis(EP)	galvanized cabinet of electrophoresis(EP)	galvanized cabinet of electrophoresis(EP)
Compressor	Type		Rotary	Rotary	Rotary	Rotary	Rotary
Compressor	Brand		Mitsubishi	Mitsubishi	Toshiba	Mitsubishi	Toshiba
Condenser	Type		copper tube in shell	copper tube in shell	copper tube in shell	copper tube in shell	copper tube in shell
Evaporator	Fin spacing	mm	1.6	1.6	1.6	1.6	1.6
Evaporator	Fin type		Hydrophilic aluminium	Hydrophilic aluminium	Hydrophilic aluminium	Hydrophilic aluminium	Hydrophilic aluminium
Water pump	Brand		Wilo/XINHU	Wilo/XINHU	Wilo/XINHU	Wilo/XINHU	Wilo/XINHU
Water pump	Model		20-6S	20-6S	20-6S	20-6S	20-6S
Water system	materials of water pipe		Copper	Copper	Copper	Copper	Copper
	water flow	m3/h	0.8	0.8	1.16	1.63	2
	Water different pressure	Kpa	60	60	50	60	60
	Diameter,water inlet pipe	mm	3/4"	3/4"	3/4"	3/4"	3/4"
	Diameter,water outlet pipe	mm	3/4"	3/4"	3/4"	3/4"	3/4"
Refrigerant	Type		R410A/R32	R410A/R32	R410A/R32	R410A/R32	R410A/R32
Outdoor noise level (1 meter)		dB(A)	52	52	53	54	55
Wire controller	Type		Intelligent & LCD	Intelligent & LCD	Intelligent & LCD	Intelligent & LCD	Intelligent & LCD
Wire controller	The length of wires	m	5	5	5	5	5
Outdoor unit	NG	kg	37	45	49	60	66
	WG	kg	43	50	54	65	72
	Dimension(LWH)	mm	750264493	750264493	935282545	1002302620	1002302620
	Packing(LWH)	mm	825310523	825310523	980330590	1055395760	1135395760