Disposal; To Pump Down; To Start And Stop Forced Cooling; Glossary - Daikin ERLQ004CA Installer's Reference Manual

13 Disposal

Detailed error
Error code code
AC 00
EC 00
HC 00
CJ 02
H1 00
AA 02
HJ 08
HJ 09
HJ 10
89 02
7H 03
A1 00
AH 00
89 03
13 Disposal
13.1

To pump down

In order to protect the environment, be sure to pump down in
following cases:
when relocating or disposing of the unit,
after maintenance or service to the refrigerant side of the
system.
NOTICE
During pump down operation, stop the compressor before
removing the refrigerant piping. If the compressor is still
running and the stop valve is open during pump down, air
will be sucked into the system. Compressor breakage and
other injury will be the result due to abnormal pressure in
the refrigerant cycle.
Pump down operation will extract all refrigerant from the system into
the outdoor unit.
1 Remove the valve lid from liquid stop valve and gas stop valve.
2 Carry out the forced cooling operation.
3 After 5 to 10 minutes (after only 1 or 2 minutes in case of very
low ambient temperatures (<–10°C)), close the liquid stop valve
with a hexagonal wrench.
4 Check with the manifold if the vacuum is reached.
5 After 2-3 minutes, close the gas stop valve and stop forced
cooling operation.
Installer reference guide
71
Description
Booster heater overheated.
Please contact your dealer.
Abnormal increase tank
temperature.
Tank temperature sensor
problem.
Please contact your dealer.
Room temperature sensor
problem.
Please contact your dealer.
External temperature sensor
problem.
Please contact your dealer.
External backup heater
overheated.
Please contact your dealer.
Water circuit pressure is too high.
Water circuit pressure is too low.
Water pressure sensor problem.
Please contact your dealer.
Heat exchanger frozen.
Water circuit pressure is too high.
EEPROM reading error.
Tank disinfection function not
completed correctly.
Heat exchanger frozen.
b
c
a
d
e
d
a Gas stop valve
b Closing direction
c Hexagonal wrench
d Valve lid
e Liquid stop valve
13.2

To start and stop forced cooling

1 Press the forced cooling operation switch SW3 to begin forced
cooling.
2 Press the forced cooling operation switch SW3 to stop forced
cooling.
SW3
NOTICE
Take care that while running forced cooling operation, the
water temperature remains higher than 5°C (see
temperature read out of the indoor unit). You can achieve
this, for example, by activating all fans of the fan coil units.
14

Glossary

Dealer:
Sales distributor for the product.
Authorized installer:
Technical skilled person who is qualified to install the product.
User:
Person who is owner of the product and/or operates the product.
Applicable legislation:
All international, European, national and local directives, laws,
regulations and/or codes that are relevant and applicable for a
certain product or domain.
Service company:
Qualified company which can perform or coordinate the required
service to the product.
Installation manual:
Instruction manual specified for a certain product or application,
explaining how to install, configure and maintain it.
Operation manual:
Instruction manual specified for a certain product or application,
explaining how to operate it.

EHBH04+08 + ERLQ004~008

Daikin Altherma - Low Temperature Split
4P313774-1 – 2012.05