Hitachi YUTAKI S80 Series - Refrigerant Piping Connection and Indoor Units Placing; Water Pipes Connection to the Space Heating (Space Heating Pipes); Water Pipes Connection to the Tank (DHW Pipes)

31
PMML0291A rev.2 - 09/2014
INSTALLATION
ENGLISH
NOTE
• Be careful with the low pressure sensor on the suction pipe
when connecting the exible water pipes.
Low pressure sensor
• Keep the exible water pipes connected inside the indoor unit
without overpassing the highest surface of it by the help of its
internal elements until the DHW tank will be integrated on the
indoor unit.
6 Reconnect the 3-way valve motor.
7 Reassembly the indoor unit cover’s protection.
Indoor unit’s
cover protection
7.4.4 Refrigerant piping connection and indoor
unit’s placing
Follow the same procedure explained in Installation of indoor unit
alone (Without tank) on the YUTAKI S80 indoor unit Installation
and operation manual.
7.4.5 Water pipes connection to the space
heating (Space heating pipes)
Connect the space heating pipes (one end already connected to
the indoor unit) to the shut off valves of the space heating inlet
and outlet (eld supplied).
7.4.6 Water pipes connection to the tank (DHW
pipes)
Perform the exible water pipes connection to the tank (pipes
from tank to DHW installation) as follows:

Connection procedure
1 Place the DHW tank into the assembly area and put beside
it on the oor the packing material (carton casing and plastic
bag), which will protect the tank when overturning it to pro-
ceed with the piping connections.
Packing assembly
DHW tank
2 Overturn the DHW tank by one lateral side (left or right) pro-
tecting it with the packing material.