Open Loop Water Source Heat Pump-Water to Water Heat Pump 8-18KW
TUV CE, EN14511, UL Standard Certificates heat pump

Direct access to any industrial waste water, domestic waste water, sea water.

Titanium Heat exchanger,special water source heat pump for open loop water, can use for directly access to all kinds of water source even working well with sea water. Extrimely easy installation for houses beside river,lake,sea!

waste water source heat pump,ground source heat pump

waste water source heat pump,ground source heat pump

Heating Cooling  and domestic hot water functions available for HC series.

 Waste water source heat pump  single unit with slim size and reliable performance.

 5 Times Energy Saving as Normal Gas or Petrol Heater.

Suitable for Frigid zone area.  No capacity loss in even -30C air temp.

Quite unit, free of neighbour complain.


Main Characters:

1.   Extrimly energy saving, super cost saving with R410a gas inside.

2.   Special open loop Titanium heat exchanger can use any water source even sea water source. The installation is easy and flexible.

3.   Can be connected with solar water heater system.

4.   All water access parts are stainless steel and copper to keep safe, healthy and non-pollution


Quality for reliability and save maintenance cost:

Our parts are always choosend with the top brand in the world

Heat exchanger: Stainless steel SU316 plate heat exchanger.

The compressor: Daikin,Mitsubishi, Panasonic or Sanyo brand Scroll type

Heat expansion valve: Emerson brand

Four way valve: Saginomiya brand of Japan

The above parts enable our heat pump to be trouble free products.

Kolant Open Loop Waste water Source heat pump can be used as Heat Recovery Heat Pump to recover heat from room to heat the domestic hot water and swimming pool.

Directly access to swimming pool water with Titanium heat  exchanger

heat recovery open loop water source heat pump diagram


Flexible installation of typical waste water source heat pump application:

Open loop water source heat pump can use all kinds of heat source from underground water source, under ground geothermal, lake water source, sea water source, river water source and waste water source.

open loop water source ground source heat pump vertical connection

Kolant Open Loop waste Water Source heat pump Well water application.

Kolant Openloop-watersource heat pump application

Open Loop Well Water Source Heat Pump

Geothermal Open Loop Well Water Source Heat Pump

water source ground source heat pump lake,pond and river application

Open loop water source Heat Pump from Lake, Pond,River and sea water



Open Loop Water Source Heat Pump to use cooling tower source.


Waste Water source heat pump parameter

Model No OH-8 OH-11 OH-15 OH-17 OH-20S OH-25S OH-30S
Heating Nomical Capacity(W10ºC/W35ºC) KW 7.8 11 14.6 16.6 20.58 25.55 30
Power Input (W10ºC/W35ºC) KW 1.7 2.4 3.36 3.37 4.2 5.5 6.5
COP(W10ºC/W35ºC) KW/KW 4.59 4.58 4.35 4.93 4.9 4.65 4.62
Nomical Capacity(B0ºC/W35ºC) KW 6.8 8.5 12.2 13.4 17.30 21.00 25.4
Power Input (B0ºC/W35ºC) KW 1.7 2.15 3.12 3.25 3.9 5.1 6.2
COP(B0ºC/W35ºC) KW/KW 4 3.95 3.91 4.12 4.44 4.12 4.1
Cooling Nomical Capacity KW 8.2 11.2 15.09 16.9 20.5 25.3 30.5
Power Input KW 1.8 2.52 3.67 3.67 4.3 5.8 6.8
EER KW/KW 4.56 4.44 4.11 4.6 4.77 4.36 4.49
Power Supply 220-230V/50HZ
Max Output water temp ºC 60
Mini water flow(L/H)(Water Source side) Litre/Hour 1800 2800 4000 5000 5800 7000 8500
Mini water flow(L/H)(Heatpump side) Litre/Hour 1000 1750 2400 3000 3500 4300 5200
Water source side Diameter(mm) mm DN25 DN32
Heatpump side diameter(mm) mm DN25 DN32
Packing size(mm) L*H*W mm 650x1080x490 770x1130x580 770x1230x580
Unit size(mm) L*H*W mm 600x960x430 720x1010x520 720x1110x520
Protection class IPx4
Anti Shock class Class 1
Refrigerant R410a
Noise Level dB 29 30 31 32 33 34 36
Regulation component Emersion expansion valve
Condenser HX Plate heat exchanger
Evaporator HX Plate heat exchanger
Net weight kg 83 118 125 135 181 202 225
Gross weight kg 88 123 130 140 186 217 230

Two Year Warranty!

We provide 1% free spareparts with containered order and 2 year warranty of main parts for factory fault since shipment arrival.

We will send the spare parts by courrier method after confirm it is due to factory fault.

We don’t cover the cost for failure from shipment, wrong installation and incorrect usage. Of course we can provide parts by customer’s cost after warranty period.

Customer Service

We can provide free heat pump installation consultation.

We can provide after sales service, technical assistant.

We can help to purchase other parts related to heat pumps or recommand reliable suppliers directly.


For heat pump samples delivery, after packing with export class thick 5 layers paper box, we will pack heat pumps with poly wood case to avoid any damage as shown attached.

There are two ways to delivery the samples.

For sea freight, we will keep the refrigerant inside of the heat pump.

For air freight cargo, due to the air line regulation, we need to drain out the refrigerant. So you need to charge the refrigerant if you find the heat pump cannot start.

For all products above 50kg, we will fix it on a good structured wood or polywood pallet as shown below.

Good heat pump packing and be careful with every details.


 Polywood case packing and Pallet support for safety and no pollution.

For Container delivery, we use only export thick 5 layer paper box. After carefully loading, we will take pictures before close the container door to assure everything is ok.

If by sea, normally we export at EXW, FOB or CFR terms, we only delivery goods to the destination sea port. The customers need to cover cost for their import duty and cost. Of course the customers can use our forwarder agent to help you to clear the customs.

We can provide all necessary document such as Form A, certificate of origin, Bill of lading, Invoice and packing list.

Normally it will take about 30 days by sea and one week by air.

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