51
During DHW MODE test running, the default target
temperature of the domestic water is 55°C. The TBH(tank
boost heater) will turn on after the compressor runs for
10min. The TBH will turn off 3 minutes later, the heat
pump will operate until the water temperature increase to
a certain value or the next command is received.
During test run, all buttons except OK are invalid. If you
want to turn off the test run, please press OK. For
example ,when the unit is in air purge mode, after you
press OK, the following page will be displayed:
11 TEST RUN
Test run is on.
Circulation pump is on.
OK
CONFIRM
When circulation pump running is turned on, all running
components will stop. 60 minutes later, the 3-way valve
will open, the 2-way valve will close, 60 seconds later
PUMPI will operate. 30s later, if the flow switch checked
normal flow, PUMPI will operate for 3min, after the pump
stops, the 3-way valve will close and the 2-way valve will
open. 60s later the both PUMPI and PUMPO will operate,
2 mins later, the flow switch will check the water flow. If
the flow switch closes for 15s, PUMPI and PUMPO will
operate until the next command is received.
When the COOL MODE RUNNING is selected, the
following page will be displayed:
During COOL MODE test running, the default target outlet
water temperature is 7°C. The unit will operate until the
water temperature drops to a certain value or the next
command is received.
When the HEAT MODE RUNNING is selected, the follow-
ing page will be displayed:
During HEAT MODE test running, the default target outlet
water temperature is 35°C. The IBH (internal backup
heater) will turn on after the compressor runs for 10 min.
After the IBH runs for 3 minutes, the IBH will turn off, the
heat pump will operate until the water temperature
increase to a certain value or the next command is
received.
When the DHW MODE RUNNING is selected, the follow-
ing page will be displayed:
11 TEST RUN
Test run is on.
Cool mode is on.
Leaving water temperature is
15°C.
OK
CONFIRM
11 TEST RUN
Test run is on.
Heat mode is on.
Leaving water temperature is
15°C.
OK
CONFIRM
11 TEST RUN
Test run is on.
DHW mode is on.
Water flow temper. is 45°C
Water tank temper. is 30°C
OK
CONFIRM
When in air purge mode, the 3-way valve will open, the
2-way valve will close. 60s later the pump in the unit
(PUMPI) will operate for 10min during which the flow
switch will not work. After the pump stops, the 3-way valve
will close and the 2-way valve will open. 60s later both the
PUMPI and PUMPO will operate until the next command
is received.
When CIRCULATION PUMP RUNNING is selected, the
following page will be displayed:
10.7.12 SPECIAL FUNCTION
When it is in special function modes,the wired controller
can not operate, the page do not return to the homepage,
and the screen showed the page that specical function
runs, the wired controller do not locked.
Press
▼
▲
to scroll the cursor to YES and press OK. The
test run will turn off.
During special function operating other functions
( WEEKLY SCHDULE/TIMER , HOLIDAY AWAY,
HOLIDAY HOME) can’t be used.
NOTE
11 TEST RUN
Do you want to turn off the test run
(AIR PURGE)function?
OK
CONFIRM
NO
YES
V.2
Summary of Contents for ETH220VMA
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