Checklist During Commissioning; About The Test Run; 10 Hand-Over To The User; Maintenance And Service - Daikin VAM350J7VEB Installer And User Reference Manual

10 Hand-over to the user

Fuses, circuit breakers, or protection devices
Check that the fuses, circuit breakers, or the locally
installed protection devices are of the size and type
specified in "5.4 Preparing electrical wiring" on page
Be sure that neither a fuse nor a protection device has
been bypassed.
Internal wiring
Visually check the electrical component box and the
inside of the unit for loose connections or damaged
electrical components.
Air inlet/outlet
Check that the air inlet and outlet of the unit is NOT
obstructed by paper sheets, cardboard, or any other
material.
Installation date and field setting
Be sure to keep a record of the installation date on the
sticker on the rear of the front panel according to
EN60335‑2‑40 and keep record of the contents of the field
setting(s).
9.4

Checklist during commissioning

To perform a test run.
9.4.1

About the test run

After completing the installation of the system, turn on the power of
the heat reclaim ventilation units. Refer to the manual of the
controller of each unit (controller for air conditioner, central
controller, etc.) to conduct a trial operation.
10 Hand-over to the user
Once the test run is finished and the unit operates properly, please
make sure the following is clear for the user:
▪ Make sure that the user has the printed documentation and ask
him/her to keep it for future reference. Inform the user that he can
find the complete documentation at the URL mentioned earlier in
this manual.
▪ Explain the user how to properly operate the system and what to
do in case of problems.
▪ Show the user what to do for the maintenance of the unit.
▪ Explain the user about energy saving tips as described in the
operation manual.
11

Maintenance and service

NOTICE
Maintenance MUST be done by an authorized installer or
service agent.
We recommend performing maintenance at least once a
year. However, applicable legislation might require shorter
maintenance intervals.
NOTICE
We recommend to clean at least once every 2 years (for
general office use). If necessary, shorter maintenance
intervals might be required.
Installer and user reference guide
40
CAUTION
Before accessing, make sure to turn off the operation
switch and disconnect the power.
13.
CAUTION
During operation, NEVER check or clean the unit. It may
cause electrical shock. Do NOT touch the rotating parts, it
will cause injury.
11.1 Overview: Maintenance and
service
This chapter contains information about:
▪ Preventing electrical hazards when maintaining and servicing the
system
▪ The maintenance of the heat reclaim ventilation unit.
11.2

Maintenance safety precautions

DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
NOTICE: Risk of electrostatic discharge
Before performing any maintenance or service work, touch
a metal part of the unit in order to eliminate static electricity
and to protect the PCB.
11.2.1

To prevent electrical hazards

When performing service to inverter equipment:
1 Do NOT open the electrical component box cover for
10 minutes after turning off the power supply.
2 Measure the voltage between terminals on the terminal block
for power supply with a tester and confirm that the power supply
is shut off. In addition, measure points as shown in the figure,
with a tester and confirm that the voltage of the capacitor in the
main circuit is less than 50 V DC.
Models 350~650
C–
C+
A2P
Models 800~2000
C–
C+
A1P
For details, refer to the wiring diagram on the outside of the service
cover.
C–
C+
C–
C+
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1A – 2018.05