Daikin REYQ8-48PY1B, Service Manual

Page: 188 / 477

Test Operation SiBE37-701_B
177 Test Operation
„
Charging in heating mode
6. Start up
Wait while the unit is preparing for charging in heating mode.
It takes about 2 to 10 minutes for the system to become stable.
In case of a small charging amount, the system will start charging the refrigerant before the
system reaches the stable state. It may disturb a correct decision and may cause
overcharging.
7. Ready
Press the BS4 TEST button once within 5 minutes.
If the BS4 TEST button is not pushed within 5 minutes, "
P2
" will be displayed on the remote
controller. Refer to "Remote controller malfunction code display" on page 180.
8. Operation
When the following LED display is shown, open valve A and close the front panel. If the front
panel is left open, the system can not operate properly during the refrigerant charging.
When the refrigerant tank is not connected or is left with the valve closed for 30 minutes or
more, the outdoor unit will stop operation and the "
P2
" code will be displayed on the remote
controller of the indoor unit. Follow the procedure as described in "Remote controller
malfunction code display" on page 180.
When a malfunction occurs, check the display of the remote controller and refer to "Remote
controller malfunction code display" on page 180.
9. Complete
If the calculated amount of refrigerant is reached, close valve A and press the BS3 RETURN
button once.
Note:
Always close valve A and remove the refrigerant tank immediately after finishing the refrigerant
charge operation.
Beware of the fan blades when you open the front panel.
The fan may still rotate for a while after unit operation has stopped.
h l h h h h k
l l h h h k h
l l h h h k k
Pressure control
(for the first minute)
Start up control
(for the next 2 minutes)
Waiting for stable
heating conditions
(for the next ±15
minutes (according to
the system))
H1P H2P H3P H4P H5P H7P H6P
l l h h k h k
H1P H2P H3P H4P H5P H7P H6P
∗ ∗ ∗ ∗ ∗ k l
∗
= The state of this LED is not important.
H1P H2P H3P H4P H5P H7P H6P
l l l k k k k
H1P H2P H3P H4P H5P H7P H6P