Installation and operation manual
26
HXY48TAVJU
VRV System indoor unit
3P616151-1A – 2021.12
9.
Hand-over to the user
Once the test run is finished and the unit operates properly, please
make sure the following is clear for the user:
Fill in the installer setting table (see chapter 10) with the actual
settings.
Make sure that the user has the printed documentation and ask
him/her to keep it for future reference.
Explain the user how to properly operate the system and what
he/she has to do in case of problems.
Show the user what jobs he/she has to do in relation to
maintenance of the unit.
Explain the user about energy saving tips as described in the
operation manual.
To be filled in by the installer once the test run is finished and the unit
operates properly
10. Operation of the unit
Please read chapter 1 and 2 first before consulting this chapter.
10.1. Introduction
10.1.1. General information
The unit is the indoor part of the air to water/air VRV heat pump. The
unit is designed for wall mounted indoor installation and used for
heating/cooling applications. The unit can be combined with (field
supply) floor heating/cooling loops or fan coil units.
A user interface with room thermostat functionality is standard
supplied with this unit to control your installation.
Refer to chapter "4. About the unit and options" on page 5.
10.2. Quick start-up of the unit
In this chapter the step-by-step procedure is explained for starting up
space cooling/heating.
The more detailed information of how the unit must be operated is
explained in the chapter "10.3. Operating the unit" on page 27.
The quick start-up offers the user the possibility to start up the system
before reading the entire manual.
10.2.1. Space cooling/heating operation
Tick
when checked
Q
Explain to the user what sytem is installed on site.
Complete the fill-in below for each unit.
The information may be useful for the user in future servicing.
Place of installation:
Model name
(see nameplate of
the unit)
Optional equipment
Q
Ensure that the user has a printed version of the installation and
operation manual and ask him/her to keep it for future reference.
Q
Explain the user how to properly operate the system and what
he/she has to do in case of problems.
Q
Show the user what jobs he/she has to do in relation to
maintenance of the unit.
Date:
Signature:
Your product was
installed by:
WARNING
Before operating the unit, be sure the installation has been
carried out correctly by an installer.
If you feel unsure about the operation, contact your
installer for advice and information.
Confirm the operation mode
(a)
heating
h
or cooling
c
(a) The operation mode can not be selected on the hydrobox. The hydrobox follows
the operation mode of the master VRV DX Indoor Unit. Refer to outdoor unit
manual for further information
W
Push the
bi
or
bj
button
W
W
Display:
88.8
starts
blinking
Display: "
n
"
W
W
Set desired room
temperature
(e.g. 72°F (22°C))
The user interface room
thermostat function is
not active
W
W
Push the
ébi
or
ébj
button
W
W
You have "room
temperature based"
control of your system
(user interface room
thermostat is installed)
You have "leaving water
temperature based" control of
your system
(default)
W
Set desired leaving water
temperature (e.g. 95°F (35°C) for
heating or 64°F (18°C) cooling).
If the display is blank, automatic
leaving water temperature is
enabled in heating operation.
W
Push the
y
button
W
The
0
LED will light up and the unit
will start.
W
For further details and advised s
ettings, see "Programming" on page 33,
"10.3.4. Space cooling operation (
c
)" on page 29
and
"10.3.5. Space
heating operation (
h
)" on page 29
01_EN_3P616151-1A.fm 26 ページ ２０２１年１２月１４日 火曜日 午後１時２９分