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6. KRE APPLICATION
6.1 Operation principle
KRE (Heat Recovery Ventilation) employ advanced technique
and technics, the heat exchanged core forming by special paper
that be processed with chemical treatment, which could create
the optimum result in temperature, humidity and cooling recov-
ery.
High efficiency heat exchanged core: When air flow formed by
exhaust air and outdoor air through the heat exchanged core in
cross way, because of temperature difference in the two sides
of flat partition board, the heat transmission is occurred. In
summer, outdoor air acquire cooling from air exhaust to decrease
environment temperature; In winter, outdoor air acquire heat from
air exhaust to increase temperature, that is to say, it realizing the
energy recovery during air exhaust process to exchange the heat
in heat exchanged core to outdoor air.
6.2 Pay Attention To The Following Items Before
Operation
6.2.1. Before start-up, please clean up the duct and check
whether all air valves and devices are normal.
6.2.2. Carefully adjust the system air valves when start-up, con-
trol the current of motor in rated range.
6.2.3. Three-phase model without by-pass function, therefore the
fan would delay 30 seconds to start up.
6.2.4. Connect the wired controller
Wired controller should be installed according to wired
controller owner’s manual, installation manual (Attached in
the package box in wire controller).
7 MAINTENANCE AND UPKEEP
7.1 During early use, one should check the fan operation regu-
larly.
7.2 The cleaning regulation for air filter depend on local environ-
ment. It could be clean by vacuum dirt exhauster or water, if
heavy dust accumulates, it should use neutral detergent to
clean it, and then dry it in shady and cool place for 20 to 30
minutes and replace it.
7.3 Clean the core at least 2 years a time by vacuum dirt
exhauster to remove dust and foreign substance in the unit
assemblies, do not touch the assemblies by exhauster and
flush by water to avoid core damage.
7.4 Check the fan every half a year to maintain the well balance
of it and check whether the axletree has loosed.
8. TRIAL RUN
8.1 Please Confirm The Following Points Before
Trial Run:
8.1.1 The unit is installed correctly completed.
8.1.2 Ducting and wiring are correctly completed.
8.1.3 The drainage is smooth.
8.1.4 The heating insulation works well.
8.1.5 The ground wiring is connected correctly.
8.1.6 The power voltage fits the rated voltage of KRE.
8.1.7 There is no obstacle at the outlet and inlet of KRE.
8.2 Control The KRE By Wired controller, Operate
It According To Wired controller Owner’s Manual.
8.2.1 Whether the switch on the remote controller works well.
8.2.2 Whether the room temperature is adjusted well.
8.2.3 Whether the indicator lights normally.
8.2.4 Whether there is vibration or abnormal noise during opera-
tion.
