Daikin RTSQ20PY1 Service Manual page 190

Field Setting
(2) Set Cool / Heat Separately for Each Outdoor Unit System by Cool / Heat Selector
179
It does not matter whether or not there is outdoor - outdoor unit wiring.
Set outdoor unit PCB DS1-1 to OUT (factory setting).
Set cool/heat switching to IND (individual) for "Setting mode 1" (factory setting).
MODE
H1P
Dip SW.
DS1-1
C/H SELECTOR R.C.
A
Cool/Heat
selector
C/H SELECT
TEST
L.N.O.P. DEMAND
IND MASTER SLAVE
MALFNC.
H2P H3P H4P H5P H6P
C/H SELECT
OUT O
IN I
I-O O-O
B C F1 F2 F1 F2
F1 • F2
Indoor unit
P1P2 P1P2
Remote Remote
controller controller
SiBE31-801_C
H7P
OUT-MULTI
Q1 Q2
F1 • F2
Indoor unit
Test Operation