Function test and test run
During operation of the plant
operating parameters can be called
up on the outdoor unit display.
The following parameters are
displayed successively:
MVT 600 / 900 DC
- Frequency of the compressor
- Operating mode
- Current cooling / heating
performance
- Number of indoor units
- Temperature sensor air inlet
Liquefier
- Temperature sensor hot gas
- Power consumption outdoor unit
- Degree of opening for electronic
expansion valve no. 1
- Degree of opening for electronic
expansion valve no. 2
- Degree of opening for electronic
expansion valve no. 3
MVT 950 / 1050 DC
- Frequency of the compressor
- Performance requirements IT
- Mode AT
- Current cooling / heating
performance AT
- Operating mode fan AT
- Temperature sensor evaporator 4
- Temperature sensor evaporator 3
- Temperature sensor evaporator 2
- Temperature sensor evaporator 1
- Temperature sensor liquefier
- Temperature sensor air inlet
Liquefier
- Temperature sensor hot gas
- Power consumption compressor
- Degree of opening for electronic
Expansion valve no. 4
- Degree of opening for electronic
expansion valve no. 3
- Degree of opening for electronic
expansion valve no. 2
- Degree of opening for electronic
expansion valve no. 1
- Current voltage
- Number of indoor units
- Previous error message
Proceed as follows to call up the
operating parameters:
1. Remove the cover from the
outdoor unit.
2. Switch all indoor units on and
select cooling mode and the
highest fan speed.
Frequency gauge
Operating mode
Number of indoor units
Display
Frequency (Hz)
30
30
--
Stand by
60
60
Display
Mode AT
Mode fan
0
Off
Off
1
Cooling mode Low rotational speed
2
Heating mode High rotational speed
Display
No. indoor unit
1
1
2
2
3
3
4
4
Check button
Display
The display on the outdoor unit
PCB can call up the operating
parameters of the plant in the
above order. In order to do so,
press the check button located
next to the display on the AT
board.
REMKO MVT
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