Table of Contents
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RXMLQ8 + RXYLQ10~14T7Y1B*
VRV IV system air conditioner
4P543427-1A – 2020.10
[1‑0]
1
2
[1‑1]
Shows the status of low noise operation.
Low noise operation reduces the sound generated by the unit compared to
nominal operating conditions.
[1‑1]
0
1
Low noise operation can be set in mode 2. There are two methods to activate low
noise operation of the outdoor unit system.
▪
The first method is to enable an automatic low noise operation during night time
by field setting. The unit will operate at the selected low noise level during the
selected time frames.
▪
The second method is to enable low noise operation based on an external input.
For this operation an optional accessory is required.
[1‑2]
Shows the status of power consumption limitation operation.
Power consumption limitation reduces the power consumption of the unit
compared to nominal operating conditions.
[1‑2]
0
1
Power consumption limitation can be set in mode 2. There are two methods to
activate power consumption limitation of the outdoor unit system.
▪
The first method is to enable a forced power consumption limitation by field
setting. The unit will always operate at the selected power consumption
limitation.
▪
The second method is to enable power consumption limitation based on an
external input. For this operation an optional accessory is required.
[1‑5] [1‑6]
Shows:
▪
[1‑5]: The current T
target parameter position.
e
▪
[1‑6]: The current T
target parameter position.
c
For more information and advice about the impact of these settings, see
"20.3 Energy saving and optimum
[1‑10]
Shows the total number of connected indoor units.
Description
Outdoor unit is slave 1 unit.
Outdoor unit is slave 2 unit.
Description
Unit is currently not operating under low noise
restrictions.
Unit is currently operating under low noise restrictions.
Description
Unit is currently not operating under power
consumption limitations.
Unit is currently operating under power consumption
limitation.
4
operation" [
126].
20
Configuration
|
Installer and user reference guide
119
- Quick Links:
- Error Codes: Overview
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Table of Contents
Troubleshooting
Need help?
Do you have a question about the VRV IV and is the answer not in the manual?
Questions and answers
Hi, kindly assist me with resolving the problem of the VRV IV series. It pops up from the remote control, and after checking the master and the slaves, both cannot identify their ID number. though the last error was e2. Someone messed up with the wiring, perhaps the communication cable. If we can see what cable goes to the first unit from the master, we have 16 units attached.
The troubleshooting steps for a Daikin VRV IV series system with an E2 error and communication issues between the master and slave units are:
1. Check Q1/Q2 Wiring: Inspect the wiring connections between the master and slave units at the Q1/Q2 terminals. Faulty or incorrect wiring can cause communication failures.
2. Verify Indoor-Outdoor Wiring: Ensure that the wiring between the indoor and outdoor units is correctly connected at the Q1/Q2 and F1/F2 terminals. Incorrect connections can lead to system malfunctions.
3. Check System Test Run: If the system test run was not executed or ended abnormally, perform the test run again to identify potential issues.
4. Confirm Indoor Unit Configuration: Ensure that the number of indoor units connected to the F1/F2 line does not exceed the system's capacity. Too many units can cause communication failures.
5. Inspect System Compatibility: Verify that the indoor units connected are compatible with the system (e.g., R410A, R407C, Hydrobox). Mixing incompatible units may cause communication issues.
6. Examine Outdoor Unit Wiring: Ensure that the interconnecting wiring between outdoor units in the same piping system is connected to the Q1/Q2 (Out Multi) terminals. Incorrect wiring to the F1/F2 terminals can cause system malfunctions.
Following these steps should help diagnose and resolve communication issues in the VRV IV system.
This answer is automatically generated