16 Configuration
Installation and operation manual
38
SV1ASV4~8A14AJV1B
VRV 5 safety valve unit
4P709466-1 – 2023.09
16.1.2
To access the field setting components
See
16.1.3
Field setting components
Location of the 7-segment displays and push buttons:
a
BS1
DS1 DS2
BS2 BS3
b
c
BS1
MODE: for changing the set mode
BS2
SET: for field setting
BS3
RETURN: for field setting
DS1, DS2
DIP switches
a
DIP switches
b
Push buttons
c
7-segment displays
Push buttons
Use the push buttons to make the field settings. Operate the push
buttons with an insulated stick (such as a closed ball-point pen) to
avoid touching live parts.
7-segment displays
The display gives feedback about the field settings, which are
defined as [Mode-Setting]=Value.
Example
Description
Default situation
Mode 1
Mode 2
Setting 8
(in mode 2)
Value 4
(in mode 2)
16.1.4
To access mode 1 or 2
Initialisation: default situation
NOTICE
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 SV unit, outdoor unit and all indoor
units. When the communication between SV units, indoor units and
outdoor unit(s) is established and normal, the 7‑segment display
indication state will be as below (default situation when shipped from
factory).
Stage
Display
Ready for operation: blank display indication as
indicated.
7‑segment display indications:
Off
Blinking
On
Access
BS1 is used to switch between the default situation, mode 1 and
mode 2.
Access
Action
Default situation
Mode 1
▪ Push BS1 one time.
The 7‑segment display indication changes to:
.
▪ Push BS1 one more time to return to the
default situation.
Mode 2
▪ Push BS1 for at least 5 seconds.
The 7‑segment display indication changes to:
▪ Push BS1 one more time (short) to return to
the default situation.
INFORMATION
If you get confused in the middle of the process, press BS1
to return to the default situation.
16.1.5
To use mode 1
Mode 1 is used to set basic settings and to monitor the status of the
unit.
What
How
Changing and accessing
the setting in mode 1
1
Push BS1 one time to select
mode 1.
2
Push BS2 to select the required
setting.
3
Push BS3 one time to access the
selected setting's value.
To quit and return to the
initial status
Push BS1.
Example
Checking the content of parameter [1‑2] (to know the software
version).
[Mode-Setting]=Value in this case defined as: Mode=1; Setting=2;
Value=the value we want to know/monitor:
1
Make sure the 7‑segment display indication is in the default
situation (normal operation).
2
Push BS1 one time.
Result:
Mode 1 is accessed:
Summary of Contents for VRV 5
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