Technical manual - water-water-soil heat pump

Congratulations!

You are the owner of a TMC HYPER-JET heat pump. In this manual you can find out how to use this heat pump.

Keep this manual as it contains installation and maintenance instructions. This product is designed to work over a long period of time. To use and maintain the product in optimal operating conditions, it is necessary to keep the manual.

ATTENTION !!!

WHEN STARTING THE HEAT PUMP, HAVE A DEVICE FOR MEASURING THE ELECTRICAL VOLTAGE AND A NON-CONTACT THERMOMETER.

Why choose the pumps produced by the company TERMOCASA?

• Heat pumps TERMOCASA incorporates technologies and materials invented and patented in Romania by Romanian engineers;
• Heat pumps TERMOCASA water-to-water are probably the only ones that do not require an intermediate exchanger;
• Heat pumps TERMOCASA benefits from very long warranty periods and ultra-fast service due to the increased reliability and attention to the customer;
• Heat pumps TERMOCASA benefits from the most efficient ULTRAFLEX flexible heat exchangers on the market;
• Heat pumps TERMOCASA they have performances hard to match even the most well-known brands of heat pumps.

Environmental protection is a priority for the group TERMOCASA.

Product quality, efficiency and environmental protection, all these are equally important objectives for us. Environmental protection laws and regulations are strictly followed.

We use the best techniques and materials for environmental protection, while also taking into account economic points of view.

An easy-to-use heat pump

The TMC HYPER-JET heat pump uses as a primary source of heat capture the circuit with a deep, horizontal collector or groundwater using the captured energy to heat your building. The heat pump can be connected to the building's heating system as well as to a domestic hot water boiler.

1) Control cable, 2) Power cord, 3) Pump supply socket, 4) Hot outlet, 5) Cold exit, 6) Cold entry, 7) Warm entrance, 8) Start button.

Hydraulic connection

The installation of the product must be done carefully taking into account the installation standards and the building plan. The product must be connected to an expansion vessel in a closed system except for the groundwater circuit. Remember to clean the radiators of rust and other debris before mounting.

Complete all installation / adjustment steps according to the description in the installation chapter "Commissioning the product".

The flow and return pipes of the primary or secondary circuit must have a recommended diameter of 32 mm.

The heat pump can work with temperatures up to about 50 ° C on the return and returns to the circuit (flow) maximum temperatures of 55 ° C for short periods of time (1-3 hours for boiler water heating), and the operating temperature continues (normal) of the heat pump must not exceed 40 degrees Celsius per return and 45 degrees Celsius per flow heat.

The TMC HYPER-JET heat pump does not malfunction at higher return temperatures, but stops the compressor repeatedly and can affect the life of the compressor.

Circulation pump

The circulation pump (recommended minimum 32-8) for the heating agent or for the brine circuit or for the groundwater must be dimensioned so as to be able to ensure a temperature difference of the thermal agent between flow and return between 3 and 7 degrees Celsius to ensure optimal operation of the heat pump.

Make sure that a sufficiently large circulation pump has been fitted so as to provide the heat pump with sufficient heat. We recommend a Wilo, Grundfos or Pedrollo pump, which are suitable for most heating systems.

The heat pump stops when the heat agent flow is insufficient!!!

Location of the heat pump

The heat pump must be placed above floor level for operation. Do not forget that the compressor can generate a noise during operation similar or lower than the noise produced by a washing machine.

The primary circuit

In order to use the heat pump at the maximum level of performance, a suitable flow rate of the heating agent must be used. The flow rate of the heating agent (deep collector source, horizontal or water from the water table) must not be lower than that presented in the technical data table.

Connecting the brine circuit (coils or probes)

The installation and connection of the circuit with vertical probes or with a horizontal collector must be carried out by an authorized installer, in accordance with all the installation rules. Be very careful not to get dirt on the piping system, which must be perfectly clean when connecting the circuit to the heating system. Protect the piping by installing covers against the ingress of impurities, during the entire installation period.

To allow servicing of the heat pump, shut-off valves must be installed on both the flow and return, when connecting the pump and the brine circuit. Install bifurcation taps/valves to be able to fill and vent the collector circuit independently of the heat pump.

Collectors can be vertical wells or horizontal coils.

In the case of vertical probes, their total depth will be at least 1,2 times the surface of the house, i.e. for a 100 sqm house insulated with 10 cm polystyrene and windows with 3 glasses, the probes must have a minimum of 120 ml, this total depth can be even greater depending on the degree of isolation of the building. We recommend that the probes be made with 32mm PN10 polyethylene pipe and charged with glycol.

In the case of horizontal coils, their total length will be at least 3 times the surface of the house, i.e. for a 100 sqm house insulated with 10 cm polystyrene and windows with 3 glasses, the coils must have a minimum of 300 ml, this length can be even greater depending on the degree of isolation of the building. We recommend that the surface of the land on which the coils will be installed be at least double the surface of the house, that is, for a 100 square meter house we need at least 200 square meters of land for installing the coils. We recommend that the coils be made with 32mm PN6 polyethylene pipe and charged with glycol under a pressure of at least 2 bar before being covered with earth, to avoid strangulation due to the weight of the earth. We recommend that the coils have a length of 50-100 ml each, be as equal as possible and connected to a distributor in the technical room or in an underground chamber, be positioned back and forth on the edge of the ditch (the ditch should be 50-60 cm wide ), and the recommended depth is between 150 and 200 cm. If the land is on a slope, then the distributor should be located at the top of the land in order to achieve the correct ventilation of the coils. The coils will be placed on a single level to ensure maximum efficiency.

airing

There must be no air in the circuit. Even the smallest air bubbles can affect the proper functioning of the product. Read "filling the circuit" below.

Insulation against condensation

You must insulate the entire primary circuit against condensation, otherwise ice or condensation droplets will form on the circuit.

Filling and venting the brine circuit

Mix distilled water with antifreeze in an open container so that it can withstand down to -20 degrees without freezing.

The pipes must have a diameter of 32 mm.

Connect a powerful external fill pump to fill and vent. Then open the taps so that the liquid can circulate through the open vessel.

Allow the heat agent to circulate through the installation for a period of time until the air is removed. However, it is possible that there is still air in the installation, even if it does not come out at all at the time of venting.

Vent the level pan by unscrewing the cap at the top of the tank.

You can now close the taps and allow the recirculation pump to continue running and then turn off the priming pump.

The external filling pump will increase the pressure in the system when the filling valves are opened.

A venting vessel must be fitted to the collector tube, as air bubbles may appear.

Always check the filter when filling and venting the heating agent circuit.

Checking the brine circuit after installation

After a few days, check the pressure of the liquid in the system. Fill in if necessary.

Level vessel

The level vessel must be mounted on the tour of the brine installation at the highest point. Note that the bowl may form condensation. Fit the relief valve/cock and fit a plug to the top of the tank.

The brine liquid

The brine liquid circulates in a closed system. The liquid consists of water and antifreeze solution, recommended on the basis of ethanol. The percentage of alcohol in the mixture must be just under 30%, which will result in a class 2b fire hazard and a freezing point of approximately -20°C.

Air bubbles

In order not to have air bubbles on the installation, make sure that a necessary amount of liquid goes up to the pump on the collector tube. If this does not happen, it may be necessary to vent the installation at its highest points. The filling pump generally tolerates small differences in the amount of liquid.

Checking the temperature differences in the brine circuit

When the heat pump is running, check frequently that the temperature difference between flow and return is not too great. If a difference greater than 5 degrees is found, this may be due to the existence of air in the circuit, a clogged filter or an undersized recirculation pump. If this is the cause, then the heat pump will automatically stop.

Electric instalation

The electrical installation and installation of the heat pumps must be carried out by an authorized electrician. All cable connections must be made according to the rules and regulations in the field.

Power source

The TMC HYPER-JET heat pump must be connected to 230V or 400V, uninterruptible power supply, protected with grounding.
If the voltage at the equipment's power outlet is not stable, it is recommended to check and fix the problem or use a voltage stabilizer that must be 4× the equipment's power, and capable of supporting the current and voltage at startup and during equipment operation.

Safety switch

The electrical installation must contain a safety switch for the complete interruption of the electrical energy.

IMPORTANT

The heat pump has maximum efficiency and low consumption when:

• the temperature of the heating agent (heater/floor/fan convector) is as low as possible and the water/soil temperature is as high as possible,
• the temperature difference between round and return should be between 3 and 7 degrees Celsius
• the insulation of all contact surfaces of the building with the outside should be as good as possible (the equivalent of a minimum of 5 cm polystyrene)
• the radiant surfaces (radiator, floor, fan coil units, etc.) should be as large as possible, so that the temperature of the thermal agent (35-45 degrees Celsius per cycle) is sufficient for heating the building.

The service and check period of the heat pump to preserve the warranty periods, i.e. the check and replacement if necessary of the refrigerant, oil and filter, must not exceed 3 calendar years, regardless of the type of warranty.

Electrical diagram heat pump + water heater + building heating:

1) boiler thermostat, 2) 3-way solenoid valve TERMOCASA, 3) ambient thermostat, 4) heat pump, 5) heat pump supply, 6) soil water pump or brine circuit, 7) recirculation pump, 8) supply boiler thermostat/3-way valve

1) boiler thermostat, 2) 3-way solenoid valve TERMOCASA, 3) ambient thermostat, 4) heat pump, 5) heat pump supply, 6) soil water pump or brine circuit, 7) recirculation pump, 8) supply boiler thermostat/3-way valve

Heat pump detail electrical sketch, electro-mechanical control with self-retaining:

1) 230v power supply, 2) high pressure thermostat, 3) low pressure thermostat, 4) low pressure pressure switch, 5) high pressure pressure switch, 6) start button with return, 7) self-maintaining contactor, 8) ambient thermostat, 9) tour agent thermostat, 10) compressor contactor, 11) pump contactor, 12) pilot light.

1) 230v power supply, 2) high pressure thermostat, 3) low pressure thermostat, 4) low pressure pressure switch, 5) high pressure pressure switch, 6) start button with return, 7) self-maintaining contactor, 8) ambient thermostat, 9) tour agent thermostat, 10) compressor contactor, 11) pump contactor, 12) pilot light.

Installation diagram of 2 heat pumps with puffer and boiler

1) water well or brine circuit, 2) water filter, 3) non-return valves (2 pcs. for water-water installation), 4) water well pump or brine circuit, 5) heat pump, 6) 3-way solenoid valve Termocasa, 7) recirculation pump, 8) domestic hot water boiler, 9) hot water outlet boiler, 10) cold water boiler inlet, 11) storage tank (buffer), 12) building heating circuits

1) water well or brine circuit, 2) water filter, 3) non-return valves (2 pcs. for water-water installation), 4) water well pump or brine circuit, 5) heat pump, 6) 3-way solenoid valve Termocasa, 7) recirculation pump, 8) domestic hot water boiler, 9) hot water outlet boiler, 10) cold water boiler inlet, 11) storage tank (buffer), 12) building heating circuits

Heat pump installation diagram with puffer, boiler and solar panel

1) thermal power plant, 2) DHW (domestic hot water) boiler, 3) recirculation pump, 4) 3-way solenoid valve, 5) recirculation pump, 6) gravity direction flap, 7) solar panel, 8) recirculation pump, 9) building heating circuits, 10) storage tank (buffer)

The 3-way solenoid valve (4) from the green circuit and the recirculation pump (5) will be supplied from the solar panel automation.

1) thermal power plant, 2) DHW (domestic hot water) boiler, 3) recirculation pump, 4) 3-way solenoid valve, 5) recirculation pump, 6) gravity direction flap, 7) solar panel, 8) recirculation pump, 9) building heating circuits, 10) storage tank (buffer)

Heat pump installation diagram with puffer, boiler and solar panel (with intermediate exchanger)

1) water well or brine circuit, 2) water filter, 3) non-return valves (2 pcs. for water-water installation), 4) water well pump or brine circuit, 5) heat pump, 6) recirculation pump, 7) 3-way solenoid valve Termocasa (2 pcs.), 8) hot water outlet boiler, 9) domestic hot water boiler, 10) cold water boiler inlet, 11) storage tank (buffer), 12) building heating circuits, 13) sense flap, 14) recirculation pump, 15) solar panel with direct absorption, 16) intermediate heat exchanger, 17) recirculation pump, 18) recirculation pump.

(CAUTION !!! the surface of the coil in the boiler must be correctly sized according to the power of the thermal plant/heat pump - see the RECOMMENDATIONS chapter)

The 3-way valve (7) on the green circuit and the recirculation pump (18) will be supplied from the solar panel automation.

1) water well or brine circuit, 2) water filter, 3) non-return valves (2 pcs. for water-water installation), 4) water well pump or brine circuit, 5) heat pump, 6) recirculation pump, 7) 3-way solenoid valve Termocasa (2 pcs.), 8) hot water outlet boiler, 9) domestic hot water boiler, 10) cold water boiler inlet, 11) storage tank (buffer), 12) building heating circuits, 13) sense flap, 14) recirculation pump, 15) solar panel with direct absorption, 16) intermediate heat exchanger, 17) recirculation pump, 18) recirculation pump.

Heat pump assembly diagram with boiler and heat exchanger for passive cooling

1) water well or brine circuit, 2) water filter, 3) non-return valves (2 pcs. for water-water installation), 4) water well pump or brine circuit, 5) heat pump, 6) recirculation pump, 7) 3-way solenoid valve Termocasa, 8) hot water outlet boiler, 9) domestic hot water boiler, 10) faucet open in winter, open in summer, 11) tap closed in winter, open in summer, 12) tap closed in winter, open in summer, 13) faucet open in winter, closed in summer, 14) cold water boiler inlet, 15) input / output heat agent heating, 16) passive cooling heat exchanger TERMOCASA

1) water well or brine circuit, 2) water filter, 3) non-return valves (2 pcs. for water-water installation), 4) water well pump or brine circuit, 5) heat pump, 6) recirculation pump, 7) 3-way solenoid valve Termocasa, 8) hot water outlet boiler, 9) domestic hot water boiler, 10) faucet open in winter, open in summer, 11) tap closed in winter, open in summer, 12) tap closed in winter, open in summer, 13) faucet open in winter, closed in summer, 14) cold water boiler inlet, 15) input / output heat agent heating, 16) passive cooling heat exchanger TERMOCASA

RECOMMENDATIONS:

• Recirculation pumps must be a minimum of 32-8 (connection 32, pressure 0,8 bar), Pedrollo JSW1C or more powerful (have fixed flow rates) and be set at maximum speed
• For the extraction of water from the well where the hydrodynamic level (the level from which the water in the well no longer drops after at least 2 hours of operation of the water pump) is less than or equal to 5 ml, it is recommended to use a surface water pump as follows:
  • = for an 8-12kw heat pump (Pedrollo JSW1B or other similar models),
  • = for an 18 kw heat pump (Pedrollo JSW1A or other similar models),
  • = for a 22kw heat pump (Pedrollo JSWM2A or other similar models)
• For the extraction of water from the well where the hydrodynamic level (the level from which the water in the well no longer drops after at least 2 hours of operation of the water pump) is greater than 5 ml and less than 25 ml, it is recommended to use a water pump Pedrollo 4block 2/9 submersibles or other similar models, and if the hydrodynamic level exceeds 25 ml, specialists will be contacted Termocasa for personalized recommendations.
• In heating circuits where heat pumps are used, it is recommended to avoid the use of mixing valves at the distributors in the building and to avoid the use of equalization cylinders on the hydraulic circuits.
• The TMC 3-way valve can be installed both on the flow and on the return because we have temperatures below 60 degrees Celsius.

• Flows or returns from heat pumps (if there are 2 or more) do not connect more than one heat pump to the same buffer connection, the flow is connected to the highest connection, and the return to the lowest of the buffer.
• The supply voltage must be 230v or 400v (230v on each phase) both at the start of the heat pump and during operation with a tolerance of +/- 3%.
• Before starting the heat pump, the circuits must be checked so that there are no closed taps or the 3-way valve is not blocked in a position that blocks the passage of the heat agent.
• When starting the heat pump for the first time, it is recommended to use a normal socket to power the recirculation pump and the ground water pump, and after setting the thermostats (boiler and puffer), the pumps should be powered from the socket mounted on the heat pump housing.
• The temperature difference between flow (hot outlet) and return (hot inlet) must be approximately 5 degrees Celsius.
• The temperature difference between flow (cold outlet) and return (cold inlet) must be approximately 5 degrees Celsius.
• For accurate temperature measurement, a non-contact thermometer will be used and the reading will be performed on metal surfaces previously covered with electrical insulating tape or non-reflective paint.
• Before the water from the borehole enters the heat pump, it is necessary to install 2 non-return valves (in the case of submersible pumps, a non-return valve will be installed right at the water pump exit) and a dirt filter (with washable cartridge) or if the washable cartridge filter needs to be cleaned weekly or more often, a pool sand filter will be used.
• The heat pump exchangers, from the moment of starting use, must be constantly immersed in water/liquid, otherwise there is a risk of damage and even cracking.
• To check (the simplest method) the flow of water from the borehole, a 10-liter bucket is placed at the exit of the heat pump, and the time it takes to fill the bucket can be approximately:
  • 12 seconds (+/-2 seconds) for a 22kw pump
  • 15 seconds (+/-2 seconds) for a 18kw pump
  • 18 seconds (+/-2 seconds) for a 12kw pump
• For water table verification if it has permeability and the amount of water is sufficient, the following method will be applied: place a 10-liter bucket at the water outlet from the water heater or submersible pump, and adjust the flow from a faucet so that the time it takes to fill the bucket is approximately:
  • 12 seconds (+/-2 seconds) for a 22kw pump
  • 15 seconds (+/-2 seconds) for a 18kw pump
  • 18 seconds (+/-2 seconds) for a 12kw pump

Let the water flow at the rates mentioned above for a period of 48 hours and if the borehole/well does not run dry then it has a good enough water table for the heat pump. This method has worked for all clients so far.

• The surface of the coil in the boiler must be a minimum of:
  • 3 sqm for a 22kw pump,
  • 2,5 sqm for a 18kw pump,
  • 2 sqm for a 12kw pump
• The hydraulic connections are made of 32mm PPR pipe, and you must have a maximum 3 bar safety valve installed on the two circuits.
• The pressure drop in the heat exchangers, which must be taken into account when sizing the drilling or recirculation pumps, is between 1 and 1,5 bar.
• If an accumulator tank is not used, the temperature difference between flow (hot outlet) and return (hot inlet) will be checked, and if it is greater than 5 degrees due to the undersizing of the home's heating system, then it will be used on return a stronger recirculation pump or hydrophore pump if applicable.
• In the case of using radiators/radiators/fan coil units, they must have 1kw nominal power for every 3-5 m20 of heated building, i.e. for a 4 m6 room you need XNUMX-XNUMXkw (nominal power).

Heat pump dimensions:

(A)Heat pump model, (B)Flow MC/H, (C)Rated input power Kw/h, (D)Maximum power input Kw/h, (E)Heating power kw/h, (F)Maximum temperature (hot outlet)/minimum (cold inlet)°C, (G)Compressor performance coefficient max. COP, (H)Noise level (decibels), (I)Scroll Compressor, (J)Power supply V/Hz, (K)Refrigerant (optionally added), (L)Ultraflex heat exchanger (galvanic optional), (M)pressure protection, (N)Internet or radio control, (O)Transport weight Kg, (P)Dimensions / dimensions cm (without rear connections)

Putting into service

1) Check the supply voltage:

• In the case of single-phase heat pumps, the supply voltage must be 230 Volts +/-3% and not have fluctuations greater than 3 Volts when the heat pump is started.
• In the case of three-phase heat pumps, the supply voltage on each of the three phases must be 230 Volts +/-3% and not have fluctuations greater than 3 Volts when the heat pump is started, and the phase sequence must be correct, otherwise the heat pump cannot be started.

2) In the case of heat pumps supplied with water by a submersible pump, two valves or check valves must be installed on the route between the well and the heat pump, and these must be checked and replaced every 3 years.

3) On the heating circuit between the heat pump and the puffer or building, there should be no check valves, check valves, undersized taps or filters that block the flow of the recirculation pump.

4) The connection of the heat pump to the storage tank should be made at the upper and lower end according to the sketches in the installation manual.

5) The temperature difference between flow (hot outlet) and return (hot inlet) should be about 5 degrees Celsius, the temperature difference between flow (cold outlet) and return (cold inlet) should be about 5 degrees Celsius.

6) The temperature set at the thermostats for the boiler or storage tank must not exceed 50 degrees Celsius.

Failure to follow these recommendations can lead to increased current consumption and a malfunction of the heat pump.

Declaration of conformity

For:
Heat pump models TMC HYPER-JET 22, 28, 48, 61

TERMOCASA, having its registered office in Loc. Oradea city, str. Zorelelor no. 5, through legal representative Farcaş Adrian, we declare on our own responsibility, knowing the provisions of art. 292 of the Criminal Code regarding false declarations and the provisions of art. 5 of HG no. 1022 / 2002 regarding the regime of products and services that may endanger life, health, occupational safety and environmental protection, the fact that the product "Heat pump" models TMC HYPERJET 22, 28, 48, 61, is the subject of this declaration of conformity , does not endanger life, health and work safety, does not produce a negative impact on the environment and is in accordance with the following provisions:

• Cooling systems and heat pumps;
• Air conditioners, liquid cooling units and heat pumps with compressors driven by an electric motor for heating and cooling spaces;
• SR EN 14511-3: 2007, point 4; PSL 01

To remember:

Fill out the form below. It can be useful in an emergency.

Please send WhatsApp to the number ………………………………. a video recording with the heat pump as well as with the technical camera (indoor unit + connections). The filming should be done similar to the one in the link ……………………

Parameter monitoring device:

U – the LED indicates an anomaly in the electrical supply system (too low or too high voltage, missing phase, incorrect sequence of phases, phase difference between phases), we recommend you contact the technician who installed the heat pump.

HT – the LED indicates that the maximum temperature allowed on the heating circuit has been exceeded (perhaps the installation needs ventilation, the recirculation pump is defective or undersized, taps or valves closed on the heating circuit), we recommend that you contact the technician who installed the heat pump.

LT – the LED indicates that the minimum temperature allowed on the cooling circuit has been exceeded (perhaps the installation needs to check the flow in the primary circuit (water or glycol), suction or filters clogged, tap/valve closed), we recommend you contact the technician who installed the heat pump.

HP – the LED indicates that the maximum pressure of the refrigerant (freon) has been exceeded (perhaps the installation needs ventilation, the recirculation pump is defective or undersized, taps or valves closed on the heating circuit, etc.), we recommend that you contact the technician who installed the heat pump.

LP – the LED indicates an excess of the minimum pressure of the refrigerant (freon) (perhaps the installation requires checking the flow rate in the primary circuit (water or glycol), clogged suction or filters, closed tap/valve, etc.), we recommend that you contact the technician who installed the coolant pump the heat.

Voltage/phase monitoring relay

Adjustment:
1) 400v,
2) 15%,
3) 15%,
4) 12%.

Installation:
The 3 phases are connected to R, S, T, neutral is connected to N, the fault signal cable is connected to 16), the automation control cable is connected to 15) and 18).