Daikin EKHTSU260AC [262/292] Detailed explanation of setting modes

Daikin EKHTSU260AC [262/292] Detailed explanation of setting modes
External Backup Heater Kit ESIE09-08B
250 Appendix
7.4 Detailed Explanation of Setting Modes
To activate the heater kit some field settings on the indoor unit need to be changed. For details
how to change field settings refer to the chapter "Field settings" of the indoor unit installation or
operation manual.
Detailed
description
[6-02] Heater kit
Once installed, you can activate the heater kit by changing field setting [6-02]=1. From that
moment on, the heat pump sys
tem will take the heater kit into account whilst deciding
operation. When the heater is actually operating, the heater symbol ( is shown on the
remote controller. There is no step 1-2 indication.
Use of backup heater with EKHBRD*AA*
(*) Auxilary relay (following heat pump tariff signal) can be applied to switch off BUH durin
g
HP tariff operation
Use of backup heater with EKHBRD*AB*/EKHVMY(R)D*AA*
(*) Auxilary relay (following heat pump tariff signal) can be applied to switch off BUH during
HP tariff operation
Note Setting [8-01]:
Not for EKHBRD*AA*: was used to set auto restart on or off. This has been changed to
default on.
[8-02] Emergency operation
During emergency mode, heating is only done by the heater kit, not by the heat pump.
Activ
at
ion of emergency mode is done by changing field setting [8-02]=1. Activating the
emergency mode will stop the heat pump operation. The pump of the indoor unit will be
started, but heating itself is done by the heater kit. If there are no error conditions in leaving
or returning water thermistors, the heater kit can start to follow emergency operation.
Note Before activating emergency operation, be sure to activate the heater kit. The heater will
stay in emergency mode until the field setting is set back to default [8-02
]=0.
Benef
it kWh rate power supply mode
Note This concerns the benefit kWh rate power supply mode
of the EKHBRD/EKHVM indoor unit.
For more details, refer to the "Field settings" chapter of the indoor unit installation manual.
If the benefit kWh rate power supply is used for the indoor unit, the indoor unit will go into
emergency operation aut
omatically when the p
ower supply is interrupted.
[6-02]=0 [6-02]=1
Normal heat pump operation BUH assistance possible NO YES
During heat pump tariff BUH operation NO YES (*)
Heat pump operation NO NO
Ta < -25°C Automatic switch over to BUH
ope
ra
tion
NO NO
[6-02]=0 [6-02]=1
[8-01]=0 [8-01]=1 [8-01]=0 [8-01]=1
Normal heat pump
operation
BUH assistanc
e
possible
NO NO YES YES
During heat pump
tariff
BUH operation NO NO NO YES
Heat pump operation NO NO NO NO
Ta < -25°C Automatic switch over
to BUH opera
tion
NO NO NO YES
(*)

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