NeoRe TG Series Installation Manual
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Summary of Contents for NeoRe TG Series
- Page 1 Installation manual NeoRé TG series heat pump air-water NeoRé TG NeoRé 8TG NeoRé TG NeoRé TG NeoRé 6TG NeoRé 8TG HP NeoRé TG HP NeoRé TG HP NeoRé 6TG HP All rights and changes reserved. Last update .. - .....
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Page 2: Table Of Contents
Contents Introduction Safety instructions . Safety warnings ........... . . ... - Page 3 Manufacturer contact . Documents to download .............
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Page 4: Introduction
. Introduction Installation manual extends User manual by more informations. This manual is designed primarily for construction companies and heating engineers, which realise installation of outdoor and indoor unit of NeoRé heat pump and connect it to the heating system. Second part of this manual is designed for service organisations and engineers. -
Page 5: Safety Instructions
. Safety instructions . Safety warnings Read the instructions carefully before installing, commissioning or maintaining the equipment. Compliance with the described procedures for installation and operation of the equipment is important for years of trouble-free operation. Failures and malfunctions that result from non-compliance with safety instructions, installation procedures and operating rules will not be taken into account, including damage or destruction of other related equipment. - Page 6 In case of re, disconnect the appliance from the power supply and extinguish with a snow or powder extinguisher. In case of heating water leakage, switch off all circuit breakers located on the indoor unit and contact the service organization indicated on the label on the indoor unit.
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Page 7: Table Of Technical Parameters
. Table of technical parameters Figure .: Table of technical parameters ... -
Page 8: Installation Manual
. Installation manual The heat pump may only be installed in accordance with the safety instructions, see chapter Safety instructions (p. ). . Working conditions The heat pump can be used as a heat source for • heating •... -
Page 9: Technical Parameters Of Water
.. Technical parameters of water Before the installation we recommend to make water analysis. Each material reacts when come to touch with water. Type of reaction depends on substances containde in water. Water with higher content of salt, calcium and magnesium sedimenst in form of limescale after warming up to 60°C. -
Page 10: Preparation Of Space For The Outdoor Unit
. Preparation of space for the outdoor unit When choosing an area for the outdoor unit, it is necessary to consider current legislation and choose the location so that the day-time or night-time noise limits on the site boundaries are not exceeded. Ambient materials (wall, bushes, solid area, green area, etc.) signicantly affect propagation of noise. - Page 11 Images . and . (p. ) show the way space should be prepared for installation of the outdoor unit. The image . indicates minimum distances from the walls. This is the worst acceptable scenario that still enables proper functioning of the device.
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Page 12: Fitting The Outdoor Unit
. Fitting the outdoor unit Before tting the outdoor unit, it is necessary to check whether the console, on which the unit is to be mounted, is well anchored. Under no circumstances should the outdoor unit be tted unless the console is securely anchored. The outdoor unit must be tted with a minimum of two workers. -
Page 13: Indoor Unit Mounting
. Indoor unit mounting After selecting the appropriate space to place the indoor unit, rst step is to x a mount pad on the wall. There are holes in the pad that anchor it to the wall by xing with screws. Recommended screws are min. x. When anchoring, keep in mind that the mounting pad will have to bear the weight of the entire indoor unit. -
Page 14: Units Connection
.6 Units connection Several connections must be made between the indoor and the outdoor units without which the heat pump as a whole will not be able to operate. It is necessary to prepare the piping for the refrigerant circuit where the heating medium is transferred. Then it is neces- sary to prepare the power supply cable for the indoor unit, the power supply cable for the outdoor unit, the indoor / outdoor communication cable, the outdoor temperature sensor cable and optionally the indoor temperature sensor. - Page 15 According to EN 8, the minimum oor area for residential installations is determined while using AL gas, see table. If the minimum oor area condition is not met, it is necessary to ventilate the room. Minimum oor area NeoRé 8 TG (HP) ,...
- Page 16 Do not exceed the maximum pipe length. If the maximum pipe length is exceeded, the parameters of the equipment may deteriorate and the compressor may be destroyed. If pipes are laid in the ground, they must be sufciently insulated and protected from contact with water. The manufacturer recommends using Flexalen Protect Tube ...
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Page 17: Cable Connections
Pipe diameter Tightening torque /8" to N*m /8" 6 to N*m Table .: Tightening torque .6. Cable connections The main supply for the entire device is routed to the indoor unit. The outdoor unit is powered from the indoor unit, where it has a separate protection. -
Page 18: Cable Connecting
.6. Cable connecting Terminals X: L-L are designated for connecting the main power cable x mm . The outdoor unit is powered from the indoor unit from the XOU terminals and is connected by a x. mm cable for three-phase outdoor unit, or by a x cable, if the outdoor unit is powered by one phase. - Page 19 The diagram in the gure . (p. ) shows how the heater cartridge, control relay and mixing valve are connected. The relay connection method is applicable for the XOBAZ, XOAKU, XB. and XB. outputs. The mixing valve is controlled by - V and serves to mix the heating water of the second circuit. ...
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Page 20: Connection Of The Heat Pump To The Heating System
. Connection of the heat pump to the heating system Three outlets are located on the bottom panel of the heat pump’s indoor unit. Two outlets for heating water circuit and hot water circuit and one common inlet for return water from both circuits. Pictures ., ., .... - Page 21 ...
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Page 25: Connection Methods For
.. Connection methods for: Circulation pumps Pumps without power control are used as circulation pumps in the system and therefore, they are controlled only by power supply. Zero and protective conductors are connected to PE and N bridges. The phase conductor is connected to the terminal according to the location of the pump in the system. - Page 26 .8 Unauthorized connections to the heating system Figure .: Unauthorized connections to the heating system 6...
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Page 27: Commissioning
. Commissioning . Commissioning of the heating system Before starting the heat pump, it is necessary to water the circuit. It is lled with water up to a base pressure of -. bar. Depending on the height of the water column of the heating system, the base pressure increases by . bar per meter of height. -
Page 28: Short-Term Shut-Down
. Putting out of operation Beware of danger of freezing that may cause damage or complete destruction of the heating system and the heat pump when putting the device out of operation and completely shutting down the device in winter. .... -
Page 29: Errors And Status Messages
6. Errors and status messages 6. Error code structure The error code consists of four digits. indicate critical failures. These are defects that result in the heat pump shut-down. The next two digits indicate the status of connected temperature sensors. Temperature sensor faults do not affect the operation of the heat pump. -
Page 30: Errors And The Procedure To Solve Them
- Defective object temperature sensor - sensor disconnected - Defective object temperature sensor - sensor short-circuited - Defective DHW temperature sensor - sensor disconnected 6 - Defective DHW temperature sensor - sensor short-circuited - Defective storage tank temperature sensor - sensor disconnected 8 - Defective storage tank temperature sensor - sensor short-circuited If the value of the third digit is other than , some of the sensors are defective and the quality of the temperature control may decrease. - Page 31 The regulator is equipped with the function . This function causes the heat pump to restart after a critical failure subsides, such as restoring sufcient system ow. If autoreset is activated times, it is obvious that it is not a random defect. The heat pump then remains in a error condition and professional intervention is required.
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Page 32: Status Messages
To eliminate this failure, contact a service organization. xxx and xxx failures Outlet water temperature sensor defective. If the heating water temperature sensor fails, the operation of the heat pump is stopped as there is a risk of damage to the indoor unit due to lack of information about the output water temperature. The temperature sensor must be repaired or replaced with a new one, thus contact your service organization. -
Page 33: Security Features
To repair the sensor, contact a service organization. xxx and xxx status This status means that the second circuit temperature sensor is not connected or is defective. If there is a second heating circuit in your installation, this circuit is shut down until the fault is rectied. Other functions of the heat pump work without changes. - Page 34 Venting process is carried out in cycles when the circulation pump rst stands still for seconds and then works at full power for ten seconds in each cycle. These cycles are repeated continuously until the required minimum ow rate is reached.
- Page 35 Cooling water temperature too low Protection from too low water temperature during cooling when the cooling water temperature drops below the set limit. The limiting temperature for shut-down of the outdoor unit and ending the cooling process is determined as the cooling water temperature lowered by the decreased temperature of the cooling water.
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Page 36: Outdoor Unit Maintenance
. Maintenance of the equipment and components Due to its design, the heat pump is almost maintenance-free. Basic maintenance is performed by the service organization at regular annual inspections. During this inspection, all important elements of the heat pump are checked, in particular the operation of the refrigerant circuit. -
Page 37: Hot Water Tank Maintenance
Maintenance and cleaning of all components must be carried out when the unit is switched off without voltage. . Hot water tank maintenance In order to maintain the correct and, above all, efcient operation of the DHW tank, it is necessary to check the sediment content in the tank at least once every ... -
Page 38: Connection Of The Heat Pump To The Heating System
8. Design documentation 8. Connection of the heat pump to the heating system Designing The impact of the quality of the heating system design is as important as the inuence of the quality of water or ma- terials used. Insufcient heat transfer uid ow leads to an increase in condensation temperature and thus a signicant deterioration in COP. - Page 39 this is the most common cause of corrosion of the heating system. The reason may be a leak in the system, unsuitable parameters of the expansion vessel, the quality of the sealing elements and the used plastic elements. Beware that for instance underoor heating made of plastic piping with oxygen barrier corresponding to the regulation does not form a % oxygen diffusion barrier.
- Page 40 • operate the system for about / hour after heating the water • after cooling the system to approx. °C, drain rinsing water out, while observing the regulation about waste water • clean lters from mechanical impurities • without delay, ll the system with permanent lling ) Setting the pressure expansion vessel parameters - The selected volume and pressure parameters of the expansion vessel are important for long-term trouble-free operation of the heating system.
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Page 41: Hydraulic Circuit
• regularly check and maintain the individual elements (pump, boiler, control elements, expansion vessel) according to the relevant instructions for use • check the quality of circulating water at the start of each heating season and add appropriate chemical agents as needed Technical options and chemicals for protection of hot water heating systems The action of hard untreated water and the associated corrosion processes in the heating system are generally known. - Page 42 Figure 8.: Parameters of the indoor unit hydraulic output (including complete equipment) Figure 8.: Minimum heating water ow for individual power types ...
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Page 43: Heating - Range Of Working Temperatures
8. Heating - range of working temperatures The NeoRé heat pump can operate only within the output water temperature range according to the graph 8. - Working range of output water temperature. The heating system must be designed according to these requirements. The working temperature range must also be taken into account when heating an unheated building (especially in the case of newly completed buildings in winter) and during oor drying. -
Page 44: Floor Drying Program
8.. Floor drying program Floor drying screen (Fig. 8.) is divided into two parts, the left for adjusting and the right for control. Five time periods can be selected in the table on the left of the screen, while the output water temperature and time range for which the temperature is to be maintained, can be selected for each period. -
Page 45: Cooling - Range Of Working Temperatures
8. Cooling - range of working temperatures The NeoRé heat pump can only be operated in cooling mode if there is no water condensation on any element of the cooling system. It is therefore only suitable for large area cooling systems such as cooling ceilings, etc. The ooring system can also be used for cooling, but a very limited cooling capacity of such a system is to be expected. -
Page 46: Acoustic Parameters
8. Acoustic parameters The following tables show the acoustic performance values of each outdoor unit type in standard mode and in night attenuation mode (second table). Furthermore, the acoustic pressure values for both modes in the model environment and at varying distances from the outdoor unit are listed. Figure 8.: Acoustic parameters 6... -
Page 47: Technical Data
. Technical data . Electrical wiring diagram of the indoor unit Figure .: Electrical wiring diagram of the indoor unit ... -
Page 48: Hydraulic Wiring Diagram Of The Indoor Unit
. Hydraulic wiring diagram of the indoor unit Figure .: Hydraulic wiring diagram of the indoor unit 8... -
Page 49: Structural Bom
. Structural BOM Figure .: Structural BOM ... -
Page 50: Dimensions
. Dimensions Figure .: Dimensions ... -
Page 51: Dimensions Of The Wall Bracket (Pad)
. Dimensions of the wall bracket (pad) Figure .: Dimensions of the wall bracket (pad) ... -
Page 52: Removing The Cover
.6 Removing the cover Figure .6: Removing the cover ... - Page 53 . Manufacturer contact MANUFACTURER NEOTA CZ s.r.o. Štefánikova /8 6 Brno IČO DIČ CZ PLACE OF OPERATION NEOTA CZ s.r.o. Jankovice 6 Holešov Telephone: + 8 6 E-mail: support@neota.eu . Documents to download All the product documenation is avilable on website www.neota.eu/en/download as PDF. ....