9 Technical data
Installation and operation manual
23
RXYSQ6TMYFK
VRV IV-S system air conditioner
4P524881-1 – 2018.02
Main code
Sub code
Cause
Solution
High pressure sensor malfunction (S1NPH): open
circuit - A1P (X32A)
Check connection on PCB or actuator.
High pressure sensor malfunction (S1NPH): short
circuit - A1P (X32A)
Check connection on PCB or actuator.
Low pressure sensor malfunction (S1NPL): open
circuit - A1P (X31A)
Check connection on PCB or actuator.
Low pressure sensor malfunction (S1NPL): short
circuit - A1P (X31A)
Check connection on PCB or actuator.
Transmission outdoor unit - inverter: INV1
transmission trouble - A1P (X20A, X28A, X42A)
Check connection.
Transmission outdoor unit - inverter: FAN1
transmission trouble - A1P (X20A, X28A, X42A)
Check connection.
Transmission outdoor unit - inverter: FAN2
transmission trouble - A1P (X20A, X28A, X42A)
Check connection.
INV1 unbalanced power supply voltage
Check if power supply is within range.
Reversed power supply phase malfunction
Correct phase order.
Reversed power supply phase malfunction
Correct phase order.
INV1 voltage power shortage
Check if power supply is within range.
INV1 power phase loss
Check if power supply is within range.
Malfunction code: System test run not yet
executed (system operation not possible)
Execute system test run.
Faulty wiring to Q1/Q2 or indoor - outdoor
Check (Q1/Q2) wiring.
Faulty wiring to Q1/Q2 or indoor - outdoor
Check (Q1/Q2) wiring.
System test run abnormal ending
Execute test run again.
Warning: faulty wiring to Q1/Q2
Check Q1/Q2 wiring.
Malfunction code: faulty wiring to Q1/Q2
Check Q1/Q2 wiring.
▪ Too many indoor units are connected to F1/F2
line
▪ Bad wiring between outdoor and indoor units
Check indoor unit amount and total capacity
connected.
System mismatch. Wrong type of indoor units
combined (R410A, R407C, RA, etc)
Indoor unit malfunction
Check if other indoor units have malfunction and
confirm indoor unit mix is allowed.
Connection malfunction over indoor units or type
mismatch (R410A, R407C, RA, etc)
Check if other indoor units have malfunction and
confirm indoor unit mix is allowed.
Connection malfunction over indoor units or type
mismatch (R410A, R407C, RA, etc)
Check if other indoor units have malfunction and
confirm indoor unit mix is allowed.
Auto address malfunction (inconsistency)
Check if transmission wired unit amount matches
with powered unit amount (by monitor mode) or
wait till initialisation is finished.
Auto address malfunction (inconsistency)
Check if transmission wired unit amount matches
with powered unit amount (by monitor mode) or
wait till initialisation is finished.
Stop valve closed or wrong (during system test
run)
Open stop valves.
9
Technical data
A
subset
of the latest technical data is available on the regional Daikin website (publicly accessible). The
full set
of latest technical data is
available on the Daikin extranet (authentication required).
9.1
Overview: Technical data
This chapter contains information about:
• Dimensions
• Service space
• Piping diagram
• Wiring diagram
• Technical specifications
• Capacity table
