Carrier AiroVision 39 HQ, Сборка/монтаж, пусконаладка, руководство по обслуживанию

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Don’t spill cleaning m aterials over the motor and wir-
ing.
Dampers:
Automatic close-down of dampers even, if the aux-
ilary power is cut off , is required.
Heating Coil:
High operating temperatures are attained by electric
heating elements or hot water coils during normal op-
eration. Ensure all electric heating elements or hot
water coils have cooled sufficiently to allow safe han-
dling for cleaning purposes.
Clean all coils and related com ponents, including-
fins.
Particular care should be taken to avoid damaging
the heating elements/coil fins. Cleaning methods
shall not cause any appreciable damage to, displace-
ment of, inhibit heat transfer, or erosion of the coil
surface or fins.
Coils shall be thoroughly rinsed with clean water to
remove any latent residues.
Verification of Coil Clea ning:
Cleaning must restore the coil pressure drop to within
10 percent of the pressure drop measured when the
coil was first installed. If the original pressure drop is
not known, the coil may be considered clean only if
the coil is free of foreign matter and chemical residue,
based on a thorough visual inspection.
Cooling Coil:
Clean all coils and related components, including
evaporator fins including drain tubes and drip pans.
Particular care should be taken to avoid damaging
the cooling elements/coil fins. Cleaning methods
shall not cause any appreciable damage to, displace-
ment of, inhibit heat transfer, or erosion of the coil
surface or fins. Coils shall be thoroughly rinsed with
clean water to remove any latent residues.
The water in the syphon should not freeze at any
condition.
A non-return mechanism should be installed to en-
sure that during all operating cycles as well as during
stoppage no contaminants of any kind can be trans-
ferred from the condensate drain to the inlet air flow.
Verification of Coil Cleaning : Cleaning must restore
the coil pressure drop to within 10 percent of the
pressure drop measured when the coil was first in-
stalled. If the original pressure drop is not known, the
coil may be considered clean only if the coil is free
of foreign matter and chemical residue, based on a
thorough visual inspection.
Filters:
Check filters on a regular basis. Don’t leave dirty fil-
ters in units without replacement. (Prolonged oper-
ation with restricted airflow through dirty filters can
have a detrimental effect on the heating and cooling
outputs, as well as putting unnecessary strain on the
motor or motors resulting in reduced component life).
Filters shall be changed only by the filters properties
of which are in accordance with the filter stickers on
the doors of the filter functions.
Filters of the hygienic AHUs are ‘throwaway’ type and
are not to be cleaned by washing. Light dust deposits
on the filter frames can be removed by the careful
use of a soft brush and vacuum cleaner. Then filter
frame can be washed or may be cleaned with hot
soapy water and a soft cloth.
Humidifiers:
The upper limit value for non-pathogenic bacteria for
humidifier water is 10000 cfu x ml–1. However, from a
bacteria content of 1 000 cfu x ml-1 (cfu:colony form-
ing unit) onwards in the humidifier water, the plant
should be checked and cleaned. National authorities
can specify additional requirements to these default
values. A person responsible for the maintenance
and inspection of the humidification plants should
be appointed All measures taken shall be recorded.
Steam should not contain any substances represent-
ing a health hazard. For that reason, the steam hu-
midifiers may only be operated with water of at least
drinking water quality and that any flow-back to the
drinking water must be excluded.
During operation no condensate shall develop in the
fresh air volume flow behind the air humidifier. This
requirement must also be met in the event of an AHU
failure or when there is no or only insufficient supply
air volume flow.
Disinfectants can be used during cleaning after all
the accumulated dirt has been removed, however,
disinfectants shall not get into the room air through
the humidification process.
Steam humidification is recommended, however if
evaporative humidifier is used, sufficient overflow
shall be arranged. Ultraviolet treatment and regular
flushing are recommended.