7 Installation
Installation and operation manual
17
EHYKOMB33A
Daikin Altherma hybrid heat pump – gas boiler module
4P353067-1K – 2020.10
4
Check all parts for gas leaks on a pressure of maximum
50 mbar (500 mm H
2
O). There may be no stress on the gas
supply connection.
7.7
Connecting the boiler to the flue
gas system
WARNING
▪ Make sure that the socket connections of the flue and
air supply duct materials are correctly sealed. Improper
fastening of the flue and air supply duct can lead to
hazardous situations or result in personal injury.
▪ Check all flue components for tightness.
▪ Do NOT use screws or parkers to mount the flue
system as leakage can occur.
▪ Sealing rubbers can be negatively affected when
grease is applied, use water instead.
▪ Do NOT mix any components, materials or ways of
coupling from different manufacturers.
The gas boiler is designed ONLY for operation independent of room
air.
The gas boiler is delivered with a 60/100 concentric flue gas/air
intake connection. Fit the concentric pipe carefully in the adapter.
The built-in gaskets ensure there is an air tight seal.
An adapter piece 80/125 concentric connection is also available. Fit
the concentric pipe carefully in the adapter. The built-in gaskets
ensure there is an air tight seal.
INFORMATION
Carefully follow the instructions as described in the adapter
set.
The concentric adapter piece is equipped with a measuring point for
the gas exhaust and one for the air intake.
b
a
a
Gas exhaust measuring point
b
Air intake measuring point
The air supply and the flue pipe can also be connected separately as
a dual pipe connection. An option to change the gas boiler from a
concentric to a dual pipe connection is available.
NOTICE
When installing the gas exhaust take the installation of the
outdoor unit into account. Make sure the exhaust gases
are not sucked into the evaporator.
When installing the gas exhaust and the air intake, take
into account the serviceability of the indoor unit. When the
gas exhaust/air intake goes backwards over the indoor
unit, the expansion vessel cannot be accessed and, if
necessary, will have to be replaced outside the unit.
7.7.1
To change the gas boiler to 80/125
concentric connection
The concentric connection can be changed from Ø60/100 to
Ø80/125 by an adapter set.
1
Remove the concentric pipe from the air supply and combustion
gas pipe at the top of the gas boiler by turning
counterclockwise.
2
Remove the O-ring from the concentric pipe and fit it around the
flange of the concentric adapter Ø80/125.
3
Place the concentric adapter in the top of the appliance and
turn it clockwise so that the measurement nipple points straight
forward.
4
Fit the concentric pipe for the air supply and combustion gas
flue into the adapter. The integral sealing ring ensures an
airtight connection.
5
Check the connection of the internal flue pipe and the
condensate collector. Make sure it is properly connected.
7.7.2
To change the 60/100 concentric
connection to a dual pipe connection
The concentric connection can be changed from Ø60/100 to a dual
pipe connection 2× Ø80 by an adapter set.
1
Remove the concentric pipe from the air supply and combustion
gas pipe at the top of the gas boiler by turning
counterclockwise.
2
Remove the O-ring from the concentric pipe and fit it around the
flange of the dual pipe adapter Ø80.
3
Place the combustion gas connection (Ø80) in the top of the
appliance and turn it clockwise so that the measurement nipple
points straight forward. The integral sealing ring ensures an
airtight connection.
4
Remove the lid from the air supply connection. Make sure to
properly connect the air intake. Room air dependent installation
is NOT allowed.
5
Fit the pipes for the air supply and flue gas carefully in the air
inlet opening and flue gas adapter of the unit. The built-in
gaskets ensure there is an air tight seal. Make sure that the
connections are not mixed.
6
Check the connection of the internal flue pipe and the
condensate collector. Make sure it is properly connected.
