Rotex RKHBRD011ABV1 Manuel D'installation page 79

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status signal (active/not active) from the corresponding
temperature reducing device
Space 1 Space 2 Space 0
TRD TRD
Indoor unit
Domestic hot water tank
Temperature reducing device
Space 0 Space 0
Space 1 Space 1
Space 2 Space 2
Balancing bottle
A Classic room thermostat control with remote controller room
thermostat function and external room thermostat
Space 0, not using a temperature reducing device (
needs to be linked with the highest water temperature set point and
can be controlled by the remote controller room thermostat function
or by the external room thermostat. Settings for space 0 can be made
on the remote controller (same as during normal operation
The electrical connections on the unit should be done on the optional
demand PCB.
The configuration of pattern B is done by field settings:
1 Select the appropriate pattern: [7-02]=1
Turn on multiple set point 1: [7-03]=0 ➞ [7-03]=1
2
Turn on multiple set point 2: [7-04]=0 ➞ [7-04]=1
3 Enter the temperature multiple set point 1: [A-03] (see below)
Enter the temperature multiple set point 2: [A-04] (see below)
Configuration example:
Set Field
point setting
Space 0 65°C Remote
controller
Space 1 45°C [A-03]
Space 2 35°C [A-04]
Resulting heat pump water
Pattern B can also be used to do some primary multi zoning (if all set
point temperatures are selected the same, no temperature reducing
device ( ) is required).
Multiple thermo ON signals for 3 rooms can be generated. Thermo
OFF signals are only valid if all requests are OFF.
(1) When using the automatic weather dependent function for setting of space 0, you
have to make sure that the lowest possible temperature of the space 0 floating
set point (including the possible negative shift value) is higher than the
temperature set point of spaces 1 and 2.
This means that field setting [3-03] of space 0 needs to be higher than
temperature set point of spaces 1 and 2.
RKHBRD011~016ABV1+Y1
Indoor unit for air to water heat pump system
4PW61218-1A
A
DHW
), always
(1)
).
Thermo status
OFF ON OFF OFF OFF
OFF ON/OFF ON ON OFF
OFF ON/OFF OFF ON ON
OFF 65°C 45°C 45°C 35°C
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NOTE Leaving water control is not allowed for pattern B.
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It is the installers responsibility to make sure no
unwanted situations can occur (e.g. too high
water temperatures towards floor heating loops,
etc.).
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It is the installers responsibility to make sure the
water circuit is well balanced (e.g. when a
domestic hot water request occurs, there will be
sufficient flow towards other appliances as well,
etc.)
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Rotex does not offer any temperature reducing
device ( ). This system only provides the
possibility to use multiple set points.
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When space 0 is in thermo OFF, but space 1 or 2
are active, space 0 will be fed with water at a
temperature equal to the highest set point of
spaces 1 and 2.
This can lead to unwanted heating of space 0.
Installation manual
30