Test Run - Toshiba MMW-AP0271LQ-TR Installation Manual

11

Test run

 Before test run
• Before turning on the power supply, carry out the
following procedure.
1) By using 500 V-megger, check that resistance
of 1 MΩ or more exists between the terminal
block L to N and the earth (grounding).
If resistance of less than 1 MΩ is detected, do
not run the unit.
2) Check the valve of the outdoor unit being
opened fully.
• To protect the compressor at activation time, leave
power-ON for 12 hours or more before operating.
• Do not press the electromagnetic contactor to
forcibly perform a test run. (This is very dangerous
because the protective device does not work.)
• Before starting a test run, set addresses by following
the Installation Manual supplied with the outdoor
unit.
• Before carrying out a test run, complete the water
supply (10 °C or more) to the water pipe system and
the wiring for the pump.
The entire system stops by detecting an error (check
code: A01) when the water is not supplied to the Hot
Water Module and when the water does not
circulate.
 Execute a test run
Operate the unit with the wired remote controller as
usual.
For the procedure of the operation, refer to the
attached Owner's Manual to the outdoor unit.
A forced test run can be executed in the following
procedure even if the operation stops by thermostat-
OFF.
In order to prevent a serial operation, the forced test
run is released after 60 minutes have passed and
returns to the usual operation.
CAUTION
Do not use the forced test run for
cases other than the test run
because it applies an excessive
load to the devices.
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2, 4
3
1,5
1
Push button for 4 seconds or more.
[TEST] is displayed on the display part and
the selection of mode in the test mode is
permitted.
2
Push button.
3
Select the operation mode with
button, [ Heat].
• Cannot select the hot water module in a mode
other than [ Heat].
• The temperature controlling function does not
work during test run.
• The detection of error is performed as usual.
4
After the test run, push button to
stop a test run.
1
(Display part is same as procedure .)
5
Push check button to cancel (release
from) the test run mode.
([TEST] disappears on the display and the status
returns to a normal.)
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 Items to check before conducting a trial operation
Check the following items before the trial operation. The numbers in (parentheses) are the chapter numbers in the
table of contents of the installation manual.
Is the equipment attached to the legs with bolts? (See chapter 5.)
Is there sufficient open space around the equipment for servicing? (See
Installation work chapter 5.)
Have the criteria for selecting a location to install the equipment been met?
(See chapter 4.)
Are all of the pipes connected correctly? (See chapter 5.)
Are there no water leaks?
Is the flow rate suitable? (See chapter 6.)
Is the strainer in a suitable location? (See chapters 3 and 6.)
Is the line heater in a suitable location and is the flow rate suitable? (See
chapters 3 and 6.)
Have suitable safety devices for pressure relief and expansion tanks been
Piping work
installed? (See chapters 3 and 6.)
Is the shut-off valve in a suitable location? (See chapters 3 and 6.)
Is the air vent valve in a suitable location? (See chapters 3 and 6.)
Is the piping material suitably heat resistant and corrosion resistant? (See
chapters 6 to 8.)
Can water discharge through the drain? (See chapter 7.)
Was the heat-retention work done suitably? (See chapters 6 to 8.)
Is the electric wiring connected correctly? (See chapter 9.)
Is the electric wiring thick enough? (See chapter 9.)
Electric wiring work Is the power fed from a dedicated ground fault circuit breaker?
Is the output terminal wired? (See chapter 9.)
Is the addressed fixed? (*1)
Has DIP switch 4 of SW09 on the interface board of the header outdoor
Outdoor unit board settings
unit been set to "ON" (factory default is "OFF")? (See chapter 9.) (*2)
*1 Do not operate the air conditioner (run the compressor) before the address to the hot water module is fixed.
Doing so will cause the heat exchanger in the hot water module to freeze, rupture, and leak water.
*2 Set DIP switch 4 of SW09 on the P.C. board of the header outdoor unit to "ON" (factory default is "OFF").
The VRF system will be stopped to avoid water freezing when the power supply is disconnected.
NOTE
Before you run the compressor, always confirm that the hot water module is operable (power on, address fixed,
communication wiring complete).
Failure to do this will cause the heat exchanger in the hot water module to freeze, rupture, and leak water.
Check
50-EN