EDM SYSHP MINI SPLIT 06 16

Table Of Contents
95
Abreviaons:
T4: Outdoor ambient temperature
IBH: Backup electric heater
8.10 OTHER HEATING SOURCE Menu
8.10.1 OTHER HEATING SOURCE menu overview
MENU > FOR SERVICEMAN > OTHER HEATING SOURCE
Figure 3-8.26: OTHER HEATING SOURCE menu
Figure 3-8.27: T4_IBH_ON
Abreviaons:
AHS: Addional heang source
T4: Outdoor ambient temperature
In OTHER HEATING SOURCE the following parameters should be set. Backup electric heater is oponal.
dT1_IBH_ON sets the temperature dierence between the heat pump’s leaving water set temperature (T1S) and the heat pump’s
leaving water temperature (T1) above which the backup electric heater heang element(s) are on. When T1S - T1 ≥ dT1_IBH_ON
the backup electric heater is on (on models where the backup electric heater has a simple on/o control funcon).
t_IBH_DELAY sets the delay between the compressor starng and the backup electric heater being turned on.
T4_IBH_ON sets the ambient temperature below which the backup
electric heater is used. If the ambient temperature is above T4_
IBH_ON, the backup electric heater is not used. The relaonship
between operaon of the backup heater and the ambient is shown
in Figure 3-8.27.
dT1_ASH_ON sets the temperature dierence between the heat pump’s leaving water set temperature (T1S) and the heat pump’s
leaving water temperature (T1) above which the addional heang source is on. When T1S - T1 dT1_AHS_ON the addional
heang source is on.
t_ASH_DELAY sets the delay between the compressor starng and the addional heang source being turned on.
T4_AHS_ON sets the ambient temperature below which the addional heang source is used. If the ambient temperature is
above T4_ASH_ON, the addional heang source is not used. The relaonship between operaon of the addional heang
source and the ambient is shown in the picture below.
Heat mode by
IBH only
Heat mode by heat
pump and IBH
Heat mode by
heat pump
Figure 3-8.28: T4_AHS_ON
Heat mode
by AHS only
Heat mode by heat
pump and AHS
Heat mode
by heat pump
IBH LOCATE means IBH is installed for pipe heang.
P_IBH1, P_IBH2 set heang capacity of IBH and P_TBH sets heang capacity of TBH, which are used for energy consumpon
stascs.