13 Disposal
Installer and user reference guide
40
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
12.2
Precautions when troubleshooting
WARNING
▪ When carrying out an inspection on the switch box of
the unit, ALWAYS make sure that the unit is
disconnected from the mains. Turn off the respective
circuit breaker.
▪ When a safety device was activated, stop the unit and
find out why the safety device was activated before
resetting it. NEVER bridge safety devices or change
their values to a value other than the factory default
setting. If you are unable to find the cause of the
problem, call your dealer.
DANGER: RISK OF ELECTROCUTION
WARNING
Prevent hazards due to inadvertent resetting of the thermal
cut-out: this appliance MUST NOT be supplied through an
external switching device, such as a timer, or connected to
a circuit that is regularly turned ON and OFF by the utility.
12.3
Solving problems based on error
codes
In case of a displayed malfunction code, consult the dealer where
the unit was purchased.
12.3.1
Error codes: Overview
Malfunction code
Particular code
Description
EEPROM failure
Locked rotor
22
Unstable fan rpm: failure of filter contamination check or failure of function 19(29)-0-04/-05
Power supply malfunction
Capacity setting malfunction
Fan communication error
Malfunction of fan motor sensor or fan control driver
CO
2
sensor warning
Transmission error between the unit and user interface
Transmission error between main user interface and sub user interface
Wrong user interface installed
Repeated central address
Transmission error between the unit and centralised controller
External protection device activated
01
Indoor air thermistor (R1T) malfunction
02
Indoor air thermistor (R1T) out of operation range
01
Outdoor air thermistor (R2T) malfunction
02
Outdoor air thermistor (R2T) out of operation range
03
Functions 19(29)-0-04/-05 not possible due to low outdoor temperature operation
Damper-related malfunction
Damper-related malfthermistor
In case of malfunction with the code on grey background, the unit still operates. However, make sure to have it inspected and repaired as soon as
possible.
13
Disposal
NOTICE
Do NOT try to dismantle the system yourself: the
dismantling of the system MUST comply with applicable
legislation. Units MUST be treated at a specialised
treatment facility for reuse, recycling and recovery.
14
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).
14.1
Wiring diagram: Heat reclaim
ventilation unit
The wiring diagram is delivered with the unit, located on the outside
of the service cover.
Legend for wiring diagrams:
A1P
Printed circuit board
A2P~A5P
Printed circuit board assy (fan)
C7
Capacitor (M1F)
F1U
Fuse (250 V, 6.3 A, T) (A1P)
HAP
Pilot lamp (service monitor - green)
K1R
Magnetic relay (A1P)
K2R
Magnetic relay (A1P)
L1R~L4R
Reactor
M1D
Motor (damper)
PS
Switching power supply
