■
Perform the piping work as described in the chapter "Piping
connection work" on page 11.
■
Fill the system with water as described in the chapter "Charging
water" on page 14.
■
Perform the electrical wiring work as described in the chapter
"Electrical wiring work" on page 14.
■
To make the casing completely sealed, plug the knockout holes
with putty or insulation materials (to be prepared on-site).
■
Perform the pre-operation checks as described in the chapter
"Start-up and configuration" on page 18.
■
Close the unit
1 Put the sound bottom plate at the bottom of the unit and fix it
with the appropriate screws.
1
2 Fix the top panel on the unit with the appropriate screws.
4x
3 Fix the front and remaining side decoration panel(s) back to
the unit using the appropriate screws.
2x
Installation manual
11
2x
2
4 Stick the top plate insulation (accessory) at the inside of the
top decoration panel according to the figure below.
1
3
5 Fix the top decoration panel on
top of the unit using the
appropriate screws. In case a
domestic
hot
water
(optional) is installed, refer to
the domestic hot water tank
installation manual.
P
IPING CONNECTION WORK
Refrigerant piping work
For all guidelines, instructions and specifications regarding
refrigerant piping work between the indoor unit and the outdoor unit,
please refer to the outdoor unit installation manual.
■
Before brazing protect the inside of the unit against
damage caused by the flame when brazing.
■
When brazing the refrigerant connections make sure
to cool the refrigerant filters of the R410A circuit (with
a cloth soaked with cold water) inside the unit. For
location of the refrigerant filters refer to the figure
below.
Indoor unit for air to water heat pump system
2
4
tank
2x
RKHBRD011~016ABV1+Y1
4PW61218-1A