Daikin HXHD125A7V1B, Installation Manual

Page: 43 / 52

HXHD125A7V1B
VRVIII system indoor unit
4PW62584-1A – 11.2010
Installation manual
41
6 Check the leaving water and entering water temperature through
the remote controller read-out mode and compare them with the
values noted with step
1 . After 20 minutes of operation an
increase of the values should confirm the space heating
operation.
Procedure for domestic water heating
1 Check the domestic hot water tank temperature through the
remote controller read-out mode. See
"Temperature read-out
mode" on page 40 .
2 Push the
w
button for 5 seconds.
The w icon will start blinking with 1 second intervals.
3 Keep the unit operating for 20 minutes and check the domestic
hot water tank temperature through the remote controller again.
An increase of the value with 5°C should confirm the domestic
water heating operation.
4 The operation will stop if the tank storage temperature has been
reached.
11. M
AINTENANCE AND SERVICE
In order to ensure optimal availability of the unit, a number of checks
and inspections on the unit and the field wiring have to be carried out
at regular intervals.
This maintenance should be carried out by your local installer.
To execute the maintenance
activities as mentioned below, it is
only required to remove the front
decoration panel.
To take away the front decoration
panel, remove the 2 bottom screws
and then unhitch the panel.
11.1. Maintenance activities
INFORMATION
To display the last resolved error code, push the
z
button
1 time. Push the
z
button again 4 times to return to
normal mode.
INFORMATION
It is not possible to perform a test run if a forced operation
from the outdoor unit is in progress. Should forced
operation be started during a test run, the test run will be
aborted.
2x
DANGER: ELECTRICAL SHOCK
See "2. General Safety precautions" on page 2 .
WARNING: ELECTRIC SHOCK
■
Before carrying out any maintenance or repair activity,
always switch off the circuit breaker on the supply
panel, remove the fuses or open the protection
devices of the unit.
■
Make sure that before starting any maintenance or
repair activity, also the power supply to the outdoor
unit is switched off.
■
Before carrying out any maintenance or repair activity,
always switch off the multi tenant power supply.
■
Do not touch live parts for 10 minutes after the power
supply is turned off because of high voltage risk.
■
Additionally, measure the points as shown in the figure
below with a tester and confirm that the voltage of the
capacitor in the main circuit is no more than 50 V DC.
■
Please note that some sections of the electric
component box are hot.
■
Make sure you do not touch a conductive section.
■
Do not rinse the indoor unit. This may cause electric
shocks or fire.
NOTICE
Play it safe!
Touch a metal part by hand (such as the stop valve) in
order to eliminate static electricity and to protect the PCB
before performing service.
C+ C+ C+
C– C– C–