Daikin VRV IV Installer And User Reference Manual page 150

System air conditioner
Hide thumbs Also See for VRV IV:
Table of Contents

Advertisement

26
|
Technical data
Installer and user reference guide
150
Layout
3
a≥10 mm
b≥300 mm
c≥10 mm
d≥500 mm
e≥20 mm
f≥600 mm
4
a≥10 mm
b≥300 mm
c≥10 mm
d≥500 mm
e≥20 mm
5
a≥10 mm
b≥500 mm
c≥10 mm
d≥500 mm
e≥20 mm
f≥900 mm
h
2
F
d
(mm)
ABCD Sides along the installation site with obstacles
F Front side
Suction side
In case of an installation site where sides A+B+C+D have obstacles, the wall
heights of sides A+C have no impact on service space dimensions. Refer to the
figure above for impact of wall heights of sides B+D on service space dimensions.
In case of an installation site where only the sides A+B have obstacles, the wall
heights have no influence on any indicated service space dimensions.
The installation space required on these drawings are for full load heating
operation without considering possible ice accumulation. If the location of the
installation is in a cold climate, then all dimensions above should be >500 mm to
avoid accumulation of ice in between the outdoor units.
INFORMATION
The service space dimensions in above figure are based on cooling operation at 35°C
ambient temperature (standard conditions).
INFORMATION
Further specifications can be found in the technical engineering data.
A+B+C+D
Possibility 1
Possibility 2
a≥50 mm
b≥100 mm
c≥50 mm
d≥500 mm
e≥100 mm
f≥500 mm
a≥50 mm
b≥100 mm
c≥50 mm
d≥500 mm
e≥100 mm
a≥50 mm
b≥500 mm
c≥50 mm
d≥500 mm
e≥100 mm
f≥600 mm
h
1
b
A+B
RXMLQ8 + RXYLQ10~14T7Y1B*
VRV IV system air conditioner
4P543427-1A – 2020.10

Hide quick links:

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the VRV IV and is the answer not in the manual?

Questions and answers

MUHAMMAD SHAMSUDDEEN
March 21, 2025

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.

1 comments:
Mr. Anderson
March 21, 2025

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

Table of Contents

Save PDF