Tekno Point ATHENA C200 User And Installation Manual page 76

Temp difference between
water
H1
inlet and water outlet is too
large
Overheat protection of com-
F5
pressor
AC current protection of
outdoor
P1
unit
Current protection of com-
P2
pressor
AC voltage too high / too
low
P3
protection of outdoor unit
DC bus voltage too high /
too low
P4
protection
P5 IPM overheat protection
Overheat protection of
exhaust
P6
temp
Overheat protection of outer
coil in
P9
cooling
Environment temp is too
high in
PH
heating
Environment temp is too
PL
low in cooling
Protection against overhe-
PB ating of the internal coil
during heating
76
1. Insufficient water flow:
a. The water piping is blocked. Check the water piping and clean the
Y-type filter.
b. There is air in the water piping. Vacuumize it.
c. The power of circulation pump is insufficient. Change to a larger
one.
d. The circulating pump is damaged. Repair or replace it.
2. The temperature sensor falls off or is damaged. Re-fix or replace
the temperature
sensor.
1. Check if the refrigerant is sufficient. Check for leakage, and repleni-
sh refrigerant.
2. The protection switch is damaged. Replace it.
3. The PCB is damaged. Replace it.
1. The fan is damaged. Replace it.
2. The drive board is damaged. Replace it.
1. Open-phase of the compressor leads. Reconnect them.
2. The drive board is damaged. Replace it.
1. Check the power supply.
2. The drive board is damaged. Replace it.
1. Check the power supply.
2. The drive board is damaged. Replace it.
1. Poor ventilation of the heatsink of drive board.
2. The drive board is damaged. Replace it.
1. Compressor overheat protection. Check if the refrigerant is suffi-
cient. Check for
leakage, and replenish refrigerant.
2. The exhaust temperature sensor is damaged. Replace it.
3. The PCB is damaged. Replace it.
1. The air intake of the evaporator is blocked.
2. The fan doesn't work or the speed is slow, check the fan motor or
driver board.
3. The coil temperature sensor is damaged. Replace it.
4. 3. The PCB is damaged. Replace it.
1. The ambient temperature is higher than the protection setting value.
2. The ambient temperature sensor is damaged. Replace it.
3. The PCB is damaged. Replace it.
1. La temperatura ambiente è inferiore a 0°C durante il raffreddamen-
to.
2. Il sensore della temperatura ambiente è danneggiato. Sostituirlo.
3. Il PCB è danneggiato. Sostituirlo.