Double Heat Curves - ComfortZone RX35 User And Installation Manual

ComfortZone RX35/RX50/RX65
service & maintenance
temperatures (above 73° C) e.g. solar collector system, water jacketed stove or the like.
VV overheating limit is an adjustable value.
Go to "Advanced settings" / "General settings" hold the button for 5 seconds.
Proceed to "Hot water settings" / "VV Overheat limit" the value is adjustable 0-110° C,
default value 73° C.
The parameter shall be set to a value of 3-5° C higher than the highest temperature that can
be achieved in the water tank.
If the tank temperature exceeds the set value, the alarm "Hot water overheat" is activated.
11.10

Double Heat Curves

There are two different heating zones that can be controlled
via the heat pump. A function that is useful when heating the house with both radiators and
underfloor heating.
A separate shunt group with 0-10V control signal and a separate circulation pump is
required. The function requires that the CW control mode "OUT & IN" or "OUT" is selected.
The function is not possible in CW control mode "IN".
When the heat pump is delivered, this function is set to Off.
Function Description:
If heating zone 1 and 2 have different supply temperatures, zone 1 should have the higher
temperature (radiators) and zone 2 should have the lower temperature (floor heating). The
values of the two heat curves are individually adjustable.
The heating curve for zone 2 cannot be set higher than the heating curve for zone 1. Control
method can be selected individually for OUT or OUT & IN.
Fine-tuning the temperature is common to zone 1 and zone 2.
If UV control method is selected for OUT & IN, the indoor temperature in zone 1 must be
measured with an external indoor sensor TE3 (Terminal X4: 3-4), and the jumper mounted
on the control board terminal J1 must be moved from outlet 1-2 (INT) to 2 -3 (EXT)
according to Figure 2.
If UV control method 2 is selected for OUT & IN, the indoor temperature in zone 2 is
measured with an external indoor sensor TE9 (Terminal X5: 9-10) as shown in Figure 3.
UV control method 2 controls the external shunt valve's flow temperature which is measured
with sensor TE8 (terminal block X5: 7-8) as shown in Figure 3.
The control signal to the external shunt group is connected to terminal block X3: 13 (0-10
volts) and X3: 14 (GND = ground) according to Fig. 4.
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