Rotex RKHBRD011ABV1 Manuel D'installation page 78

The request signals for space heating can be implemented in 2
different ways (installer choice):
■
thermo ON/OFF signal (from external room thermostat)
Space 1 Space 2 DHW
TRD TRD
■
status signal (active/not active) from the corresponding
temperature reducing device (
Space 1 Space 2 DHW
TRD TRD
Indoor unit
Domestic hot water tank
Temperature reducing device
Space 1 Space 1
Space 2 Space 2
Balancing bottle
The electrical connections on the unit should be done on the optional
demand PCB.
The configuration of pattern A is done by field settings:
1 Select the appropriate pattern: [7-02]=0
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
(a)
Domestic 70°C [b-03]
hot water
Space 1 65°C [A-03]
Space 2 35°C [A-04]
Resulting heat pump water
(a) The water temperature needed to reach this set point of course is higher
than 70°C.
Installation manual
29
)
Thermo status
OFF ON OFF OFF OFF
OFF ON/OFF ON ON OFF
OFF ON/OFF ON OFF ON
OFF >70°C 65°C 65°C 35°C
■
NOTE If the system is configured according to pattern A,
nor the remote controller room thermostat
function (default OFF if multiple set point is
selected) nor the external room thermostat (as
replacement of the remote controller room
thermostat function) may be used.
■
The remote controller water temperature value is
ignored when pattern A is active.
■
It is the installers responsibility to make sure no
unwanted situations can occur (e.g. too high
water temperatures towards floor heating loops,
etc.).
■
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.)
■
Rotex does not offer any temperature reducing
device ( ). This system only provides the
possibility to use multiple set points.
■
It is advised to only use the automatic storage
functionality for domestic water heating when
applying pattern A (with a high set point
temperature).
Multiple set point control according to pattern B
The basic setup of multiple set point pattern B is the same as a
normal classic design, so again no domestic water heating and
space heating is possible simultaneously.
Multiple set point pattern B is focused on space heating operation
and allows using multiple water set points in combination with the
remote controller or external room thermostat.
The configuration of pattern B allows 3 space heating set points and
1 domestic hot water set point.
The request signals for space heating can be implemented in 2
different ways (installer choice):
■
thermo ON/OFF signal (from external room thermostat)
Space 1 Space 2 Space 0
TRD TRD
Indoor unit for air to water heat pump system
A
DHW
RKHBRD011~016ABV1+Y1
4PW61218-1A