18
|
Configuration
Installer and user reference guide
102
R R8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
H1P H2P H3P H4P H5P H6P H7P
-
+
+
+
+
+
[
H1P
32 16
8
4
2
1]
Description
(H1P OFF)
Default situation
(H1P flashing)
Mode 1
(H1P ON)
Mode 2
+
+
+
+
+
0
0
8
0
0
0
(H2P~H7P = binary 8)
Setting 8
(in mode 2)
+
+
+
+
+
0
0
0
4
0
0
(H2P~H7P = binary 4)
Value 4
(in mode 2)
18.2.4 To access mode 1 or 2
After the units are turned ON, the display goes to its default situation. From there,
you can access mode 1 and mode 2.
Initialisation: default situation
NOTICE
Be sure to turn ON the power 6 hours before operation in order to have power
running to the crankcase heater and to protect the compressor.
Turn on the power supply of the compressor unit, heat exchanger unit, and all
indoor units. When the communication between the compressor unit, heat
exchanger unit, and indoor units is established and normal, the display indication
state will be as below (default situation when shipped from factory).
1~2 min
8~10 min
10~12 min
5 HP
8 HP
b
c
b
a
a
a
Power ON
b
Default situation
c
LED indication when there is a malfunction
If the default situation is not displayed after 10~12 minutes, check the malfunction
code on the indoor unit user interface (and in case of 8 HP on the compressor unit
7‑segment display). Solve the malfunction code accordingly. First, check the
communication wiring.
Switching between modes
Use BS1 to switch between the default situation, mode 1 and mode 2.