Manual Test - Danfoss DHP-AX Installation And Service Instructions Manual

8.3

Manual test

Test operate and at the same time check the function of
the tested components.
8.3.1 Activate MANUAL TEST
1. Ensure that the main circuit breaker is on.
2. Select operating mode
INFORMATION -> OPERAT.->
3. Open the SERVICE menu by holding
seconds.
4. Set the value for MANUAL TEST to 2.
BB E B
S elect position 2 to navigate away from the
MANUAL TEST menu during ongoing test opera-
tion.
8.3.2 Test the circulation pump
1. Start the heating system circulation pump by setting
the value CIRC. PUMP to 1.
2. Check that the circulation pump is running by:
listening
z z z z
putting a hand on the pump
z z z z
listening for air
z z z z
3. If the pump does not start see section, 9.1 Starting
circulation pumps manually.
4. If there is air in the heating system, bleed according
to section 5.6 Bleeding the heating system.
5. Stop the circulation pump by setting the value to 0.
8.3.3 Test exchange valve for hot water (if installed)
1. Activate the 3-way valve by setting the value REV.V.
HOT WATER to 1.
2. Check that the arm on the 3-way valve changes posi-
tion.
3. If the arm does not change position, see section 15
Troubleshooting in the service instructions.
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R emember that the hot water must be activated
in the SERVICE menu, see section 9.2 Adaptation
to the heating system.
8.3.4 Test the compressor
1. Start the circulation pump by setting the value CIRC.
PUMP to 1
2. Start the heat pump compressor by setting the value
HEAT PUMP to 1.
, in the menu
in for five
VMBMH302
A B BB
NOTE! Risk of burn injury, the pressure pipe on
the compressor can get up to 125 degrees in
temperature after operating for a while!
Figure 12: The pressure pipe should get hot during operation.
3. Check that:
the compressor is running in the right direction by
z z z z
putting a hand on the pressure pipe before the com-
pressor starts, the pipe is then cold. Feel again after a
short while to ensure the pressure pipe becomes prop-
erly hot.
it sounds normal and there is no noise.
z z z z
4. If the pipe does not get hot, or if it sounds abnor-
mal, see the 15 Troubleshooting section in the service
instructions.
5. Stop the compressor by setting the value to 0.
6. Stop the circulation pump by setting the value to 0.
8.3.5 Test auxiliary heater (if installed)
1. Start the circulation pump by setting the value CIRC.
PUMP to 1
2. Start the auxiliary heater by setting the value AUX.
HEAT 1 to 1.
3. Check that the auxiliary heater works by exiting
the menu MANUAL TEST and going into the menu
INFORMATION -> TEMPERATURE -> SUPPLY LINE and
check that the temperature rises.
4. Return to the menu MANUAL TEST and stop AUX.
HEAT 1 by setting the value back to 0.
5. Stop the circulation pump by setting the value to 0.
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R emember that the auxiliary heater must be
activated in the SERVICE menu, see section 9.2
Adaptation to the heating system.
8.3.6 Test the fan
1. Start the fan by setting the value for FAN to 1. Check
that the fan runs.
8.3.7 Sensor calibration
To see the locations of the sensors, see section 5.2.1
DHP-AX, VL system for the externally located sensors and
section 11.2.1 Heating function for the internally located
sensors.
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F or further information about the heat pump's
control system, see section 12 Control panel.
Installation – 17