¶ ASSEMBLY AND INSTALLATION FOR CPV
¶ UNIT PLACEMENT IN GENERAL
• The minimum space for basic maintenance and service depends on the specific door width, which is stated in the technical specifications of the unit, but at least 600 mm.
• The minimum space for repair and replacement of equipment is the unit width + 200 mm.
• The minimum distance of flammable objects from the unit is 200 mm.
• Units for outdoor placement must be sufficiently secured to the base due to stability, according to the expected climatic conditions.
¶ UNIT PLACEMENT ON THE FLOOR
• Allowed handling of the units for placement is described in point 4.
• Units must be placed on a solid horizontal surface, to which they can be securely anchored. It is advisable to place damping material (e.g. rubber, cork) under the unit's base frame at the installation site.
• The maximum permissible horizontal deviation is 0.5% (0.3°).
• Sufficient unit height above the floor/terrain must be taken into account to allow sufficient siphon height, as the chambers with condensate drainage are equipped with siphons, see paragraph SIPHON INSTALLATION.
• Failure to ensure stability or levelness of the base can result in impaired unit function or damage, such as fan impeller misalignment with the suction nozzle, improper closing of chamber doors, etc.!
¶ UNIT ASSEMBLY IN GENERAL
Before placing the unit, the following actions must be performed:
• Check the unit's placement and the stability of the base surface -- the unit is placed/supported across the entire floor area, the unit is placed horizontally with a maximum permissible deviation, and damping material is placed between the unit and the base surface or steel structure if applicable.
• Remove the unit's packaging film.
• Remove inserted parts from the unit (cardboard boxes with accessories, control nodes, and other accessories) and store them in a safe and dry place.
¶ CONNECTING THE UNIT TO HVAC DUCTWORK
Connecting the unit to air ducts is possible for rectangular outlets only using damping inserts, which are installed on each unit's inlet/outlet (preventing vibration transmission). For round outlets, only round collars with gaskets are used, which are installed on each inlet/outlet.
The air duct must be connected without tension, meaning it must not load the damping insert and thus the unit with its weight.
The flange connection between the air duct and the damping insert must always be properly sealed.
Description of the unit's inlets/outlets:
| ODA – fresh outdoor air | ETA – exhaust from room |
| SUP – supply to room | EHA – waste air to atmosphere |
¶ CONNECTION OF THE CONDENSATE DRAIN SIPHON
The condensate drain must be connected via a siphon with sufficient water column height to ensure proper operation.
The siphon connected in a vacuum must always be filled with water before operation and after a long shutdown to allow condensate drainage.
The pipe behind the siphon must not be directly connected to the sewer pipe. The unit's height above the floor/ground must always be adjusted according to the required siphon height.
If the siphon is placed outdoors, it is necessary to heat its route, e.g., with an electric heating cable.
Correct siphon height adjustment according to the pressure value is as follows:
Can be used for vacuum up to 2300 Pa.
H=P/10 (P = pressure value stated in the unit's technical specification [Pa])
¶ CONNECTION OF WATER HEATER/COOLER
All piping must be attached independently of the heat exchangers. The fluid distribution pipes must not exert their weight and expansion forces on the unit blocks or the heat exchangers. Connections must be made so that pipe expansion due to temperature does not overload the flanges.
Tightening the connection must be done using two wrenches. Otherwise, thread deformation may occur!
If the air vent is not installed, it must be placed at the highest point of the hot/cold water supply.
The heat exchanger is always connected in a counterflow direction!
A: Fig. 5 Right-hand unit version
B: Fig. 6 Left-hand unit version
C: medium inlet
D: medium outlet
The capillary antifreeze thermostat is part of the unit and is already installed and connected to the control system from the factory.
The mixing node for thermal power regulation, if included in the delivery, is provided in a cardboard box.
The installation and service manual is included in the mixing node package. This manual contains the necessary information for safe installation, commissioning, and maintenance. Water for water exchangers must not contain impurities that cause fouling, especially corrosion products of steel and cast iron parts. To prevent the formation of these impurities, chemically treated water must be used with parameters according to ČSN 07 7401.
• pH 7 – 9.
• Water hardness 1.0 mval/l.
• Chloride content max. 30 mg/l. Phosphate content, calculated as P2O5, min. 15 mg/l.
¶ ELECTRICAL CONNECTION
Any intervention in the electrical switchboard or connection of attached components may only be carried out by a qualified person according to the valid regulations of the state in which the unit is commissioned!
The unit's individual components are electrically connected to the controller terminals and tested (fans, sensors, actuators, thermostats, pressure switches, electric heater, etc.) at the factory.
It is only necessary to connect the attached peripherals (POL822 remote control, Touch Panel, CO2 sensor, duct temperature sensor, control node, etc.). All wiring diagrams are included in the unit's accompanying project documentation "Measurement and control KJ MANDÍK".
The unit's main power supply is provided by a plug installed next to the main switch. The type of plug is specified in the unit's technical specification, and the installation method is shown in the following image.
If the unit is not equipped with a plug for the main power supply from the factory and the main power connection is required, use the prepared screw gland located next to the main switch.
A: MAIN SUPPLY
B: MAIN SWITCH
To connect the attached peripherals to the terminal block, use the prepared screw glands located right next to the main switch.
The main power connection for the water heater variant is shown in the diagram in Appendix D.
The main power connection for the electric heater variant is shown in the diagram in Appendix E.
The peripheral connections – CO2 sensor, POL822 remote control, external supply air temperature sensor – are shown in the diagram in Appendix F.