Komfovent VERSO CF 1000 UH, Инструкция по установке и обслуживанию

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EN
UAB KOMFOVENT we reserve the right to make changes without prior notice
V_20-09
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The pipe work should be done in order to ensure the space for maintenance and service work. When
carrying out the installation of heater pipes, make sure that hot water supply is completely disconnect-
ed. Before start-up of the air handling unit, the heater system should be filled in with water. Glycol is used
in the air handling units with coil heat exchanger. Never pour glycol down a drain; collect it in a recepta-
cle and leave it at a recycling centre or the like. Glycol is highly dangerous to consume and can cause fatal
poisoning or damage the kidneys. Contact a doctor! Avoid breathing glycol vapour in confined spaces. If
you get glycol in your eyes, fush them thoroughly with water (for about 5 minutes).
When operating air handling unit in the temperatures lower than
0 °C, it is necessary to use glycol additionally or assure the reversible
heating agent temperature more than 25 °C.
Pipework package 1 must include circulation pump, which circu-
lates heating/cooling medium through the coil (smaller circuit) and
3-way mixing valve with modulated actuator. In cases if 2-way valve
is used, additionally it must be installed non-return valves to ensure
continuous circulation around smaller circuit. PPU must be installed
as close to the water coil as possible.
Water heaters in VERSO CF 1000 U/H/V and CF 2300 U/H/V units has
automatic air bleed valves, thus it’s maximum operating pressure can
not exceed 6 bar.
It is important to maintain air heaters and coolers cleanliness; that is
to change filters installed in the air handling unit on time. If the air
heater or cooler gets dirty, to perform periodical cleaning.
5.5. Ductwork
The air flows in/out air handling unit through ductwork. We recommend using galvanized steel
(Zn 275 gr/m 2 ) ductwork, to ensure easy cleaning and durability. It is necessary to use the ductwork sys-
tem with low air flow rate and small pressure drop to have necessary air volume and low sound level and
save the energy. The appropriate sound attenuators will reduce the noise level of the fans in the prem-
ises. All ductwork should be insulated with 50–100 mm thickness insulation to avoid the condensation.
Note: temperature sensor B1 has to be mounted in the supply air duct under electric heater (see the func-
tional diagram in Control System Electrical Installation and Operation Manual). It is necessary to leave space
in straight air duct for sensor mounting and guarantee the space for maintenance and service work. Minimal
space between the unit and B1 sensor is the space of double air duct diameter.
Ductwork, steelwork and any other services should not be support-
ed off the unit.
It is recommended to install air dampers in the inlet and outlet ducts.
For ventilation units with water air heater, it is mandatory to use inlet air
closing damper with spring return mechanism.