Hitachi RAS-(4-12)HNP(1)(E) - Incorrect Indoor Number Setting

8 Troubleshooting
252
SMGB0087 rev.0 - 12/2013
Alarm code
35
Incorrect Indoor number setting
- The alarm code appears from 3 to 5 minutes after the outdoor unit power activation if duplication is detected in
indoor unit numbers connected to an outdoor unit (one refrigerant system). This applies when indoor unit numbers
are set by DSW6 and RSW1.
- The alarm code appears when the more than next indoor units are connected to one outdoor unit.
Model Number of indoor units
RAS-3HVNP1E
RAS-(4-12)H(V)N(P/C)(1)(E)
>11
RAS-(2-2.5)HVNP1
RAS-3HVNC1
>5
- The alarm code appears when the indoor and outdoor unit refrigerant system and address are set to 64 or above.
(In such a case, the alarm code “b1” appears on the remote control switch.)
N O T E
The alarm code may appear when H-LINK system is employed for indoor-outdoor unit transmission, if there is any incorrect
setting in DSW4/RSW1 on the outdoor unit PCB and DSW5/RSW2 on the indoor unit PCB; which are dip switches used
for refrigerant system setting. In such a case, turn OFF the power and correctly set DSW4/RSW1 on the outdoor unit PCB
and DSW5/RSW2 on the indoor unit PCB before reactivating the power.
(Some indoor unit models do not have RSW2.)
Alarm code
36
Incorrect Indoor unit combinaion
- This alarm code is indicated when the indoor unit connected to the outdoor unit is for other refrigerants (R22 or
R407C).