EKCBX/H008BBV3
Unit for air to water heat pump system
4PW66983-1C – 08.2011
Installation manual
31
■
[8-03] Booster heater delay time: specifies the start-up time
delay of the booster heater operation when heat pump
domestic water heating mode is active.
1 Booster heater operation
(1 = active, 0 = not active)
2 Heat pump domestic water heating mode
(1 = active, 0 = not active)
3 Hot water request for booster heater
(1 = request, 0 = no request)
4 Hot water request for heat pump
(1 = request, 0 = no request)
t Time
■
[8-04]
Additional running time at [4-02]/[F-01]: specifies the
additional running time on the maximum running time at
outdoor temperature [4-02] or [F-01]. See figure below.
INFORMATION
■
When heat pump is active in domestic water
heating mode, the delay time of booster heater is
[8-03].
■
When heat pump is not active in domestic water
heating mode, the delay time is 20 min.
■
The delay timer starts from booster heater ON
temperature (T
BH ON
)
INFORMATION
■
By adapting the booster heater delay time versus the
maximum running time, an optional balance can be
found between the energy efficiency and the heat up
time.
■
However, if the booster heater delay time is set too
high, it might take a long time before the domestic hot
water reaches its set temperature upon domestic hot
water mode request.
■
The purpose of [8-03] is to delay the booster heater in
relation with the heat pump operation time in domestic
water heating mode.
■
The setting [8-03] has only meaning if setting
[4-03]=1. Setting [4-03]=0/2/3/4 limits the booster
heater automatically in relation to heat pump
operation time in domestic water heating mode.
■
Take care that [8-03] is always in relation with the
maximum running time [8-01].
Example: [4-03]=1
t
1
0
1
0
1
0
[8-03]
3
4
1
0
Energy saving settings
Quick heating settings
(default)
[8-01]
20~60 min
30 min
[8-03]
[8-01] + 20 min
20 min
Heating
Cooling
t
Time
T
A
Ambient (outdoor) temperature
anti-recycle time
maximum running time
NOTICE
The full advantage of [8-04] will be applicable if setting
[4-03] is not 1.
t
T
A
t
T
A
0
[8-01]
[5-03]
[4-02]
[8-02]
[8-01]+
[8-04]
0
[8-01]
[F-01]
35
°
C
[8-02]
[8-01]+
[8-04]
