11
|
Commissioning
Installer reference guide
217
EPRA14~18D + ET23E
Daikin Altherma 3 H HT F
4P644739-1A – 2022.03
The correct pipe size is installed and the
pipes
are properly insulated.
There is NO
water leak
inside the indoor unit.
The
shut-off valves
are properly installed and fully open.
The
automatic air purge
valves are open.
The
pressure relief valve
purges water when opened. Clean water MUST come out.
The
minimum water volume
is guaranteed in all conditions. See "To check the water
volume and flow rate" in
73].
The
domestic hot water tank
is filled completely.
11.4 Checklist during commissioning
The
minimum flow rate
during backup heater/defrost operation is guaranteed in all
conditions. See "To check the water volume and flow rate" in
73].
To perform an
air purge
.
To perform a
test run
.
To perform an
actuator test run
.
Underfloor screed dryout function
The underfloor screed dryout function is started (if necessary).
11.4.1 Minimum flow rate
Purpose
For a correct operating unit, it is important to check if the minimum flow rate is
reached. If needed, modify the bypass valve setting.
Minimum required flow rate
▪
For E models: 25 l/min
▪
For E7 models: 20 l/min
To check the minimum flow rate: additional zone (mandatory)
1
Check the hydraulic configuration to find out which space
heating loops can be closed by mechanical, electronic, or other
valves.
—
2
Close all space heating loops that can be closed.
—
3
Start the pump test run (see
222]).
—
4
Read out the flow rate
(a)
and modify the bypass valve setting to
reach the minimum required flow rate + 2 l/min.
—
(a)
During pump test run, the unit can operate below the minimum required flow rate.
Summary of Contents for ETVZ16E6V7
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