Operation Checks, Operation Regulations; Unit Operation - Operation Regulations; Regular Operation Checks; Regular Inspections - Remak AeroMaster FP Series Service Instructions Manual

Air handling units
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Operation regulations, operation checks

Unit operation - operation regulations

Before putting device in permanent operation the supp-
lier of device (mounting firm) must issue operation regu-
lations according to draftsman and corresponding with
valid regulations. Following structure is recommended:
composition, specification and description of air han-
dling device operation in all modes and working states
description of all safety and protective elements and
device functions
principles of health protection and rules of safety
operation and attendance of air handling device
requirements for eligibility and training of attendant
personnel, list of workers who are authorized to operate
the device.
detailed instructions for attendance, attendance ac-
tions during emergency and failure states
list of operation specialities in different climatic areas
(summer and winter operation)
schedule of revisions, checks and maintenance,
including list of checks and method of recording

Regular operation checks

Check activities of attendance during unit operation are
focused to:
operation and function of unit, staunchness of joints,
doors and service panels, temperature of substances
and transported air and filter clogging using sensors.
state and functions of systems connected to unit and
their right functionality is necessary for operation of unit
and air handling system as a whole.
That means wiring, system of measuring and control,
heating system (pump function, water filters /SUMX as
well/), cooling system and sanitary installations - con-
densate outlet.

Regular inspections

The user will determine period of regular inspections
according to working conditions of unit. But at least
once in 3 months. Inspection content:
Check of overall state
cleaning all dirty parts of unit
Fans check
check of impeller cleanness
Damper check
Checks for damper cleanness, slewability of damper
segments and right closure of damper are performed.
Filter section check
filter state and clogging
check setting of pressure difference sensors
Final pressure loss (sign of max. admissible clogging)
at nominal air flow is for:
bag filters: 300Pa for filtration classes F7, F8 and F9,
400Pa for filtration class F5, 250Pa for filtration classes
G3 and G4
frame filters: 200Pa for filtration class G4
metal filtration elements:120Pa for filtration class G3
Air handling units
Picture 15 – change of filtration insert
bag filter
(short type)
frame filter
Check of exchangers
Checks for fouling of heat transmission surfaces of
exchangers, exchangers deaeration, function of con-
densate outlet and cleanness of drop eliminator are
performed.
Cleaning is done by air stream or by cleaning with
hot water with cleaner (unable to cause corrosion).
Cleaning must be very careful to prevent mechanical
damage to vanes.
Check and records of finding during regular before sea-
son summer and winter inspections must be done.
Important: during exchanger shut-down in winter, the
water must be perfectly removed from the exchanger,
for example by blowing the exchanger with compressed
air or the exchanger must be filled with safe anti-freeze
solution of water and glycol.
Excess water could cause ripping of copper pipes after
freezing.
We recommend performing regular summer and winter
season inspections in accordance with this installation
manual.
Electric heater check
Check of heating coils pollution. Possible fouling can
be cleaned with vacuum cleaner.
Check functionality of safety thermostat
Heat exchangers check
Checks of plate exchanger fouling and condensate
outlet functionality is performed.
Check measurements
Actual unit parameters must be recorded after perfor-
ming regular check. Service technician will mention per-
formed measurements.
bag filter
(long type)
filter with metal
elements
11

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