Vivax ACP-24COFM70GEI, Руководство по обслуживанию

Страница: 9 / 37

2.4 System protection function
2.4.1 Indoor unit modes confliction protection
2.4.3 Air exhaust temperature protection
2.4.4 Communication malfunction
2.4.5 Module protection
Communication malfunction: when continuously 3mins hasn’t received the correct signal of all the installed indoor unit or
within 10s, cannot receive the correct signal from the drive board that are communication malfunction, the outdoor unit
will stop running.
Communication malfunction happened during defrosting, will process as following: multi unit heating, defrosting break off start part of
indoor unit communication wire, go on defrosting, until defrosting finished then make response to indoor unit communication malfunction.
2.4.2 Overload protection (Anti-high temperature protection)
2.3.5 Defrosting
2.3.4 Outdoor fan control
2.3.3 Turns to Cooling (dehumidifying), Fan modes
2.3.6 Heating oil return control
Indoor unit installation quantities test: after powered on, within 3mins, outdoor unit hasn’t received the communication data from some indoor unit,
that outdoor unit wiill judge this indoor unit haven’t installed. Outdoor unit will not communicate with indoor unit.
Compressor will stop when module protect, when indoor temperature arrive at presetting temperature, the unit will stop running, compressor
has stopped 3mins, it will automatically resume to running status.(If in defrosting procedure, after 180s later that will resume); If the continuous
protection times excess 6 times ( if compressor running time excess 7min, that the protection times will clean to 0), the system will turn off the
unit and sent wrong signal to outdoor unit, it cannot resume to running status; It is need to resume after powered on.
Compressor stop running; four-way valve will delay 2min and powered off; outdoor fan will delay 1min and stop running; 4-way valve will
electrified. All the expansion valve will turn to OP for adjustment, the side valve will electrify, the valve will fully turn to 480P, the side valve
will power off.
If the preset of indoor unit is different, according to the following for running:
a. Consider the first running indoor unit mode as the standard mode, other indoor units modes compared to this mode and judge whether
there is conflict happened. Cool mode (Dehumidifying) conflicts with Heat mode.
b. Fan mode conflicts with Heat mode, consider heating as the basic mode, no matter the sequence of units turns on, indoor units conflict,
will run in heating mode.
When satisfied with defrosting condition, the system will enter into defrosting,at this time the compressor will stop running; All electron expansion
valve will turn to 480P; after compressor stop 40s later, outdoor fan will stop, meanwhile the four-way valve will reversal; after 4-way valve reversed
all electron expansion valve will turn to 150p, after expansion valve turned to preset positio, compressor starts up and frequenctly run (frequency limit,
frequency droop will be effective). When defrosting condition finished has been satisfied, defrosting will finish.
When Ttube temperature is tested very low, compressor will run rise frequency; when the temperature is tested very high, the compressor
will run at frequency limit or frequency drop; if Ttube is very high, compressor will stop running.
If the tube temperature overload protection 6 times continuously happened that the compressor cannot resume to run, it needs to power
on then it can resume. During the operation, if compressor running time exceed 7mins, the overload protection times will clear to 0.
When detected the Tair exhaust is very high,frequency rise is forbidden; If detected the Tair exhaust is very high, compressor will run at drop
frequency; If detected the Tair exhaust is too high and excessive, compressor will stop for 3mins, if Tair exhaust resume to normal that the
compressor, outdoor fan will resume to run.
If the Tair exhaust temperature protection has continuously happened for 6 times that the compressor cannot resume.
it needs to power on then can resume. (If compressor running time exceed 7mins, the protection times will clear to 0).
Heating start up and compressor start up before 5s running, after outdoor fan start up and run in high speed 80s, then according to indoor
unit rated capacity total amount and outdoor ambient temperature will automatically select Hig, Mid, Low three fan speed.
When heating running and produce oil return condition, then send the oil return signal to indoor unit, indoor unit will execute as oil return
operation; Compressor will stop running, all electron expansion valve of indoor valve will turn to 480P (all electron expansion valve turns
to 480P then side valve will turn on); Compressor stops 40s later, 4-way valve will reversed. Outdoor fan: Firstly run at high speed 40s
(Before this, if low fan speed rotate to high fan speed 40s; At this time, if it run at high fan speed that will maintain high fan speed runs
for 40s), 4-way valve reversed, all electron expansion valve will turn to 150P; Expansion valve will turn to preset position, the compressor
will start up and runs at high frequency in a certain frequency.
When oil return maintain time arrives 5mins, will finish.
Other control: newly open indoor unit for running, outdoor fan motor will run at high speed for 40s right away, then adjust according to
control logic. Fan motor each speed runs 80s at least (Indoor unit running quqntity changed, will calculate the total amount of indoor unit
rated capacity and according to the temperature to adjust the fan speed.) When compressor stop running, outdoor fan motor will stop
after 1min delay. When tout ambient 15 and indoor unit stop running or unit off, meanwhile the outdoor unit will stop running, 30s
later, restart again.