Service Regulations; Operating Checks And Service Regulations; Unit Operation - Service Regulations - Remak AeroMaster Cirrus Series Installation And Operating Instructions Manual

Commissioning, Service Regulations
Fan Built-in Assembly
Check the fan impeller for integrity and free rotation.

Check the tightening of the Taper-Lock collets.

Check the assembly screw connections for tightening.

Check the protective covers for integrity and mounting.

Check the fan impeller, inlet and outlet for cleanliness

and foreign objects.
Extra checks for fans with a belt drive:
Check the belt tension.

Check pulley alignment.

Check the V belts for integrity

Until the air-handling system is adjusted, the air-handling
unit can only be put into operation when the regulating
damper in the air-handling unit inlet is closed. Opera-
ting the air-handling unit while the air-handling system is
misadjusted can cause motor overloading and permanent
damage. If the second stage of filtering is included in the
air-handling unit, it is advisable to run the testing operation
with the second stage filter inserts removed.
Checks During First Start-Up
Check the proper direction of the impeller rotation

following the direction of the arrow on the impeller or fan
casing.
Check the proper direction of the rotary heat exchanger

rotation following the direction of the arrow on the rotor
(from the service panel side always upwards) and free
rotation without dragging.
Check the input current of connected equipment (it

must not exceed the maximum permissible value stated on
the rating plate).
After 15 minutes of operation, stop the air-handling unit

and check the temperature of the bearings and the tension
of belts (belt-driven fans only). This check may only be
performed if the fan is switched off!
Check the water level in the condensate drainage kit

siphon. If the water has been sucked off, it will be necessa-
ry to increase the height of the siphon.
 Check the mounting of the filters
During the testing operation, it is necessary to check the
air-handling unit for unusual noises and excessive vibrati-
ons. The testing operation must last at least 30 minutes.
After the test operation has finished, the air-handling unit
must be inspected. Pay special attention to filters and
check them for damage, as well as the fan block, check
the belt tension, the tightening torques of threaded pins
of Taper-Lock collets (refer to the Table of Taper-Lock
collet tightening torques), and proper functioning of the
condensate drainage kit. If the unit vibrates too much, it is
necessary to again check the fan assembly and perform
vibration intensity measuring, if necessary. If the vibration
intensity of the fan assembly with an overhung impeller ex-
ceeds 2.8 mm/s, measured at the motor bearing shield on
the impeller side, the fan must be checked and balanced
by professional staff. During the testing operation, it is ne-
cessary to adjust (regulate) the entire air-handling system.
Before putting the air-handling unit into permanent opera-
tion, it is recommended to replace or regenerate the filter
inserts.
14
Air Handling Units

Service Regulations

Before putting the air-handling device into permanent

operation, the supplier (installing company) in collaboration
with the designer must issue service regulations in accor-
dance with local legal regulations. We recommend inclu-
ding the following in these service regulations:
Air-handling device assembly description, its inten-

ded use and a description of its activities in all operating
modes.
Description of all safety and protective elements and

their functions.
Health protection principles, safety and operating rules

to be observed when operating the air-handling equipment.
 Requirements for operating staff qualifications and trai-
ning, a nomenclature list of personnel authorized to opera-
te the air-handling device.
Detailed emergency and accident instructions to be fol-

lowed by the operating staff.
Operating particularities during different climatic conditi-

ons (e.g. summer or winter operation).
Inspection, checking and maintenance schedule, inclu-

ding a list of checking steps, and their recording.
Records of operating staff training, operation, inspecti-

ons and cleaning of the rotary heat exchanger (subject to
guarantee validity)
Warning:
If work on the air-handling unit requires door ope-

ning, the air-handling unit must be disconnected from
the power supply, and measures preventing accidental
start of the unit must be taken.
It is forbidden to operate the air-handling unit with

open service doors or dismantled service panels
The manufacturer prohibits stopping the
exchanger wheel equipped with a layer of
silica gel throughout the year.