Hydro-Pro 5, User And Service Manual

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For example below:
7.2 Heating priority (see the paragraph 6.2.6), option of connection
Option 1; P3=0 Filtration pump is related to heat pump operation to start and stop.
Filtration pump starts 60s before compressor, filtration pump start 30s and then the water flow
switch detect flow. Before the heat pump enters into Standby mode, the compressor stops first and
after 5 minutes filtration pump stops.
Condition Example Water pump working logic
P3=0, P3=0,
1. Then it enters into
standby mode for 1 hour
(It will not restart except
turn it on manually.)
2. After 1 hour, the filtration pump
will restart for 5 minutes. If the
T1 ≤ 27
℃
, the heat pump will start
to work until T1 ≥ 27.5
℃
and last
for 30 minutes to go into standby
Heating
T1 ≥ Tset ‐ 0.5
℃
, T1 ≥ 27.5
℃
,
mode
last for 30 last for 30
minutes minutes
Cooling
mode
P3=0,
T1 ≤ Tset+0.5
℃
,
last for 30
minutes
P3=0,
T1 ≤ 28.5
℃
,
last for 30
minutes
1. Then it enters into
standby mode for 1 hour
(It will not restart except
turn it on manually.)
2. After 1 hour, the filtration pump
will restart for 5 minutes. If it tests
T1 ≥ 29
℃
, the heat pump will start
to work until T1 ≤ 28.5
℃
and last
for 30 minutes to go into standby
Mode
Water out
temperature
Setting
temperature
Condition Malfunction
Heating mode 36
℃
29
℃
Tout ‐ Tset
≧
7
℃
EE04
Overheating protection for water
temperature (T2)
Cooling mode 23
℃
30
℃
Tset ‐ Tout
≧
7
℃
PP11
Too low protection for water
temperature (T2)
PP11 Water Overcooling Protection
T
water out
（
℃
）
T
SET Temp.
-7 ℃
T
SET Temp.
-5 ℃
Normal Operation
Frequency Decrease
Compressor Stop and PP11 displays