123
Installation
8.2.11 TEST RUN
8.2.11.1
CHECKLIST BEFORE TEST RUN
Do NOT operate the system before the following checks are
OK:
You have read the complete installation instructions of
outdoor unit, indoor unit and master controller carefully.
The
indoor unit
is properly mounted.
The
outdoor unit
is properly mounted.
this document and the applicable legislation:
applicable)
The system is properly
earthed
and the earth terminals are
tightened.
The
fuses
or locally installed protection devices are installed
according to this document, and have NOT been bypassed.
The
power supply voltage
matches the voltage on the
Nameplate
of the unit.
There are NO
loose connections
or damaged electrical
components in the electrical box.
There are NO
damaged components
or
squeezed pipes
on the inside of the indoor and outdoor units.
Only for DHW tank with
electric heater
:
Temperature protection switch (Auto restore)
has been
already wired.
Temperature protection switch / Temperature fuse
has
been already wired.
There are NO
refrigerant leaks
.
The
water pipes
are thermally insulated.
The correct pipe size of
refrigerant pipes
(gas and liquid)
are installed and the
pipes
are properly insulated.
There is NO
water leakage
inside the indoor unit.
The
shut-o valves
are properly installed and fully open.
The
stop valves
(gas and liquid) on the outdoor unit are fully
open.
The
air purge valve
is open.
The
safety valve
purges water when open.
The
minimum water volume
is guaranteed in all conditions.
See “Check Water Volume” under section 9.3 “Water Filling”.
The
DHW tank
The unit starts only when all check points are cleared up.
Pay attention when system is running:
(A) Do not touch any parts of discharge pipelines, because the
discharge temperature of compressor can be more than
90°C.
(B) Do not press AC contactor button, otherwise serious accident
may be caused.
Do not touch any electrical components in 10 minutes after
8.2.11.2
CHECKLIST DURING TEST RUN
The
minimum ow rate
during electric heater/defrost
operation is guaranteed in all conditions. See section
“8.2 Requirements and recommendations for hydraulic
To perform
an air purge
.
To perform
a test run
.
To perform
an actuator test run
.
Underoor screed drying function
(if necessary).
and contraction. Recommend it is within 30 minutes.
Use the controller to start test run (refer to the manual of
master controller).
It is normal that after indoor unit is energized, it may
directly enter anti-freezing running mode, and water pump
automatically runs if outdoor temperature is very low.
8.2.11.3
CHECK THE MINIMUM FLOW RATE
1
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 setting of DSW4-8 in
section “10 DIP Switch Setting of PCB1” .
—
4
2L/min.
—
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