Fresh Air Intake - Friedrich MS24Y3F Installation Instruction Sheet

SPECIAL INSTALLATION METHODS
CAUTION
1 When setting the rotary switch and DIP switches, do
not touch any other parts on the circuit board directly
with your bare hands.
2 Be sure to turn off the main power.
1. GROUP CONTROL SYSTEM
A number of indoor units can be operated at the same time using a single
remote controller.
(1) Wiring method (indoor unit to remote controller)
0 1 2
Indoor unit No. Indoor unit No. Indoor unit No. Indoor unit No.
1 2 3 1 2 3 1 2 3 1 2 3
Remote
controller
wire 1 2 3
Remote
controller
(2) Rotary switch setting (indoor unit)
Set the unit number of each indoor unit using the rotary switch on the
indoor unit circuit board.
The rotary switch is normally set to 0.
(3) DIP switch setting (remote controller)
Change DIP switch 1 No. 3 on the remote controller from OFF to ON.
Indoor unit Remote controller
OFF ON
1
2
3
4
5
6
SW3
ON
Rotary Switch DIP Switch 1
2. DUAL REMOTE CONTROLLERS (OPTIONAL)
Two separate remote controllers can be used to operate the indoor units.
(1) Wiring method (indoor unit to remote controller)
Indoor unit
1 2 3
Remote
controller
wire
1 2 3 1 2 3
Remote
Master Slave
controller
unit unit
(2) DIP switch setting (remote controller)
Set the remote controller DIP switch 1 No. 1 and 2 according to the
following table.
Number of Master unit
Remote controller
remote
DIP-SW 1 No. 1 DIP-SW 1 No. 2
controllers
OFF
1 (Normal) ON OFF
1
2
2 (Dual) OFF OFF
3
4
5
6
Number of
Slave unit
remote
DIP-SW 1 No. 1 DIP-SW 1 No. 2
controllers
DIP Switch 1
1 (Normal) – –
2 (Dual) ON ON
3. AUTO RESTART
• When the air conditioner power was temporarily turned off by a power
failure etc., it restarts automatically after the power recovers.
(Operated by setting before the power failure)
The auto restart function can be
canceled.
(1) DIP switch setting (indoor unit)
Change the DIP switch (SW1-1)
on the indoor unit circuit board
from ON to OFF. The auto restart
function will be canceled.
3
[DIP-SWITCH SETTING]
● Indoor unit
SW state
NO.
OFF ON
★
1 Invalidity Validity
★
DIP-Switch 1 2 — —
★
3 — —
★
1 Wireless Wired
DIP-Switch 4 2 — ★ —
★
3 — —
● Remote controller
SW state
No.
OFF ON
★
1
★
2
★ One unit
DIP- 3 Multiple units
switch 1 ★ Heat & cool model
4 Cooling only model
★ Validity
5 Invalidity
★ Invalidity
6 Validity
★ Validity
1 Invalidity
★ Validity
2 Invalidity
★ Validity
DIP-
3 Invalidity
switch 2 ★ Validity
4 Invalidity
★ Fixed at OFF
5
★ Fixed at OFF
6
11

FRESH AIR INTAKE

• Open the hole and connect the duct.
ON
Duct
Rear side
Indoor unit
OFF
SW1 SW4
DIP Switch
Detail
Auto restart setting
Temperature correction
setting
Remote controller setting
Air flow setting
Detail
Dual remote controller setting
Group control setting
Model setting
AUTO changeover setting
Memory Backup setting
THERMO SENSOR button setting
ENERGY SAVE button setting
Horizontal airflow direction and swing button setting
Vertical airflow direction and swing button setting
Cannot be used.
Cannot be used.
(★: Factory setting)
PART NO. 9359945031