12-12
CONTROL SYSTEM
SM YBD018 1-A.1 GB
12.7.1.1 1 Level Logic (used in all models except for floor/ceiling models)
P2 P3 Level
Don’t
care
1 Normal
Don’t
care
0 Overflow
ANY
0
ON
NLOAD
PUMP
OFF
ON
OPER
LED
OFF
Overflow
Water Level
Normal
BLINK
NLOAD is
forced to 0
8 min
8 min
Overflow when
unit is ON
Overflow when
unit is OFF
8 min
12.7.10 Exceeding
operation
conditions
Exceeding limits state
Normal state
(
default
)
Outdoor conditions
EnableExceedCond
Indoor
Mode
request
Indoor
Hydro
(Family 31)
Indoor
Non Hydro
(Family is not 31)
1
0 (or OAT
faulty)
Outdoor mode
Cooling A=47
A=47
Idle
Cooling
Cool
Cooling B=-11
B=-11
Idle
Cooling
Cool
Heating B=-18
B=-18
Idle
Heating
Heat
Heating A=+40
A=+30
Idle
Heating
Heat
12.8
Indoor Unit Dry Contact
Indoor unit Dry contact has two alternative functions that are selected by J8.
Function
Contact = Open
Contact = Short
J8 = Open
Presence Detector Connection No Limit
Forced to STBY
J8 = Short
Power Shedding Function
No Limit
Limit NLOAD
