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START-UP CONFIGURATION
When connecting with DOAS system, ensure that all information in DOAS Installation Manual is read by installers and
that the system is configured as applicable per the DOAS Installation Manual.
WARNING
•
Split Rooftop DOAS model power source can be selectable 208/230V or 460V. Be sure that the field wiring is correspond to the
voltage on the unit or it cause the serious damage to the unit.
Instruction described in “Field Wiring”
CAUTION
•
Do not use the following functions of Multi V 5 (Heat Recovery) which could interrupt proper Target Pressure control for
DOAS unit.
- FN7, FN14, FN30, FN8, SE14, ID5, ID6
* FN27 would not be activated base on the DOAS Fan control setting in ODU defrost mode
•
Do not operate without the aluminum filters installed. They prevent the entry of foreign objects such as leaves, birds, etc.
•
Do not run unit during construction phase. Damage to internal components may result and void warranty
Checks before Initial Start-Up
After the installation of the unit, first check the following
items. Once all below checks are fulfilled, the unit must
be closed, only then can the unit be powered up.
1.
Installation:
Check that the unit is properly
installed, to avoid abnormal noises and vibrations
when starting up the unit.
•
Verify diameter seal settings on the energy
recovery wheel
• Check all fasteners, set-screws, and locking
collars on the fans, bearings, drives, motor bases
and accessories for tightness.
• Filters can load up with dirt during building
construction. Replace any dirty pleated filters and
clean the aluminum mesh filters in the intake
hood.
•
Verify proper drain trap installation.
2.
Field wiring:
Be sure that the field wiring has been
carried out according to the instructions described
in “Field Wiring”, according to the wiring diagrams
and according to the applicable legislation.
3.
Power supply voltage
: Check the power supply
voltage on the local supply panel. The voltage must
correspond to the voltage on the identification label
of the unit.
4.
Ground wiring:
Be sure that the ground wires have
been connected properly and that the ground
terminals are tightened.
5.
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 “Field Wiring”. Be sure that neither a
fuse nor a protection device has been bypassed.
6.
Internal wiring:
Visually check the control box and
the inside of the unit on loose connections or
damaged electrical components.
7.
Pipe size and pipe insulation:
Be sure that correct
pipe sizes are installed and that the insulation work
is properly executed.
8.
Stop valves:
Be sure that all stop valves are open.
9.
Damaged equipment:
Check the inside of the unit
on damaged components or squeezed pipes.
10.
Refrigerant leak:
Check the inside of the unit on
refrigerant leakage. If there is a refrigerant leak, try
to repair the leak. If the repair is unsuccessful, call
your local dealer. Do not touch any refrigerant
which has leaked out from refrigerant piping
connections. This may result in frostbite.
11.
Oil leak:
Check the compressor for oil leakage. If
there is an oil leak, try to repair the leak. If the
repairing is unsuccessful, call your local dealer.
12.
Air inlet/outlet
: Check that the air inlet and outlet of
the unit is not obstructed by paper sheets,
cardboard, or any other material.
13.
Record the contents of field setting:
Record
them on the accessory REQUEST FOR THE
INDICATION label and attach the label on the back
side of the front panel.
14.
Record the installation date:
Record the
installation date on the accessory REQUEST FOR
THE INDICATION label and attach the label on the
back side of the front panel
