12
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Commissioning
Installer reference guide
244
ERGA04~V3A+V37 + EHSH/X(B)04+08P30+50EF
Daikin Altherma 3 R ECH₂O
4P678716-1A – 2022.07
The
power supply voltage
matches the voltage on the identification label of the unit.
There are NO
loose connections
or damaged electrical components in the switch box.
There are NO
damaged components
or
squeezed pipes
on the inside of the indoor and
outdoor units.
Backup heater circuit breaker
F1B (field supply) is turned ON.
There are NO
refrigerant leaks
.
The
refrigerant pipes
(gas and liquid) are thermally insulated.
The correct pipe size is installed and the
pipes
are properly insulated.
There is NO
water leak
inside the indoor unit. All electric components and connections are
dry.
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
The
storage tank
is filled completely.
12.4 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
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).
To set up a
bivalent heat source
.
12.4.1 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
12 l/min
To check the minimum flow rate
1
Check the hydraulic configuration to find out which space
heating loops can be closed by mechanical, electronic, or other
valves.
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