Daikin VAM250FC, Installation Manual

Page: 15 / 24

250FC
Total Heat Exchanger
HRV (Heat Reclaim Ventilation)
4P415946-1 – 2015.08 Installation manual
12
Operation with the remote control exclusively for Air
conditioning operation HRV units. (BRC301B61)
For non-independent systems, starting/stopping operation and timer
operation may not be possible.
Use the air conditioner remote control or the Centralized controller in
such cases.
BRC301B61: Remote controller for VRV
BRC1C51, 61, 517: Remote controller for VRV
1. Operation lamp
This pilot lamp (red) light up while the unit is in Operation.
2. Operation/Stop button
When pushed once, the unit starts operating.
When pushed twice, the unit stops.
3. Air flow rate changeover button
Air flow rate can be changed over to " " [Low] mode or
" " [High] mode,
" FRESH UP" [LowFRESH UP] mode,
" FRESH UP" [High FRESH UP] mode.
For "FRESH UP" operation
When this indication does not show: The volume of outdoor air
supplied into the room and that of the room air exhausted
outdoors is equivalent.
For "FRESH UP" operation,
• If it is set to "Fresh up air supply": The volume
of outdoor air supplied into the room is larger
than that of room air exhausted outdoors.
(This operation prevents the odour and
moisture from kitchens and toilets from flowing
into the rooms.)
• If it is set to "Fresh up air exhaust": The volume
of room air exhausted outdoors is larger than
that of outdoor air supplied into the room.
(This operation prevents the hospital odour
and floating bacteria from flowing out to the
corridors.)
4. Ventilation mode changeover button
" " (Automatic) mode
The temperature sensor of the unit automatically
changes the ventilation of the unit in [Bypass]
mode and [Heat Exchange] mode.
" " (Heat Exchange) mode
In this mode, the air passes through the heat
exchange element to effect [Total Heat
Exchanging] ventilation.
" " (Bypass) mode
In this mode, the air does not pass through the
heat exchange element but passes it to effect
[Bypass] ventilation.
5. Indication of operation control method:
When the operation of HRVs is linked with the air conditioners,
this indication may be shown.
While the indication is shown, the ON/OFF of HRVs cannot be
operated by the HRV remote controller.
6. Indication of operation standby:
It indicates the precooling/preheating operation. This unit is at
stop and will start operation after the precooling/preheating
operation is over.
Precooling/preheating operation means the operation of HRVs is
delayed during the startup operation of linked air conditioners
such a before the office hours.
During this period the cooling or heating load is reduced to bring
the room temperature to the set
temperature in a short time.
7. Indication of centralized control:
When a remote controller for air conditioners or devices for
centralized control are connected to the HRVs, this indication
may show.
During this indication appears on the display, the ON/OFF and
timer operation may not be possible with the HRV remote
controllers.
8. Indication of air filter cleaning
When the indication " " appears on the display, clean the
filter.
9. Filter signal reset button
10. Inspection button
This button is to be used only for service. It is not to be used
normally.
How to operate with Timer
11. Push the button " " and select either one of " " or
" ".
Each time the button is pushed, the indication changes as
shown below.
( )
BRC301B61
A
HRV
TEST
FRESH UP
hr
hr
6
8
4
3
9
5 7 1 2
11
13
10
12
TEST
C
hr
hr
TEST
NOT
AVAILABLE
L H
6 1 2
7
5
8
9
4
11
10 13 12 14
3
FRESH UP
FRESH UP
A
( (
A
( (
“ ” “ ”
"No indication"