Technibel PMHRV 2044 - Water Temperature Probe Data; Heating Mode Operation; Cooling Mode Operation

8
• The potentiometers used to set the various thresholds are
located under the cover of the controller’s front panel.
B - WATER TEMPERATURE PROBES
(heating option)
• CTN type 3 kΩ at 25°C.
• Probe defect:
If the temperature value measured is outside of the
measurement range (-20°C to +84°C), the indicator light
of the selected mode begins to flash and the R1 and R2
heating control outputs are disabled.
C - HEATING MODE
• With the remote mode inversion contact being closed
("Heating" indicator of the controller on), the closure of the
remote On/Off contact:
-Activates the pump.
-Activates the generator in heating mode, provided that
the water temperature is greater than the
corresponding adjustable cut-in threshold AJ3.
-The generator "on" indicator GR thus comes on. (If the
generator is solicited and the temperature is lower
than the threshold, this indicator flashes).
-Authorizes the auxiliary heating outputs to function in
accordance with the diagram opposite.
• NOTE:
- The cut-in of each of the auxiliary stages is signaled by the indicator light (R1 and R2).
- The cut-in of the 2nd stage is timed at 5 min. (during this time period, the corresponding indicator light flashes).
• The opening of the remote On/Off contact causes the time delayed shutdown of the pump (5 min.) and the immediate
shutdown of the generator and auxiliary stages. The corresponding indicator lights are thus off.
56
7
3
4
8
10
1
29
36 39
33
42
30 45
14 16
12
18
10 20
29 31
27
33
25 35
DL3 DL4 DL5
DL2DL1
J2
AJ1
appoint
R1
AJ2
offset
R2
AJ3
limite
chaud
AJ4
limite 
froid
Temperature (°C)
-10
0
10
20
25
30
40
50
60
Ohmic value (Ω)
16,600
9,796
5,971
3,748
3,000
2,417
1,598
1,081
747
1 K 1 K
1
st
stage
2
nd
stage
AJ1 auxiliary heating set point
Shift AJ 2
Water tempearature
D - COOLING MODE
• With the remote mode inversion contact being open (the controller’s “Cooling” indicator on), the closure of the remote On/
Off contact:
-Activates the pump.
- Activates the generator in cooling mode, provided that the water temperature is less than the cut-in threshold:
- Generator operation is restricted if the water temperature is greater than 35°C.
- Operation is authorized for only 30 minutes if the temperature is greater than the adjustable threshold AJ4. This
time delay is reinitialized if the stop signal is present or if the temperature is greater than 35°C.
- The generator "on" indictor light GR glows steadily if the generator is activated. (If the generator is solicited and the
temperature is greater than the threshold, this indicator flashes).
• The opening of the remote On/Off contact causes the time delayed shutdown of the pump (5 minutes) and the immediate
shutdown of the generator. The generator "on" indicator GR is thus off.
• In this mode, the heating outputs are disabled.
AJ1
Electric heater
1
st
stage
cut-in
temperature
38°C
AJ2
Electric heater
2
nd
stage
cut-in
offset
5 K
AJ3
Generator
authorization
threshold
in heating mode
15° C
AJ4
Generator
authorization
threshold
in cooling mode
25° C
Potentiometer
Function
Factory settings