Hitachi RWM-(H)FSN3E, Руководство по обслуживанию

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5 Control system
SMGB0070 rev. 1 - 08/2011
118
5.3 Safety protection and control device
5.3.1 Indoor unit
MODEL RWM-(2.0/3.0)FSN3E RWM-(4.0-6.0)FSN3E RWM-(8.0/10.0)FSN3E
For Electric Heater
Surface Thermostat
Manual reset, Non-adjustable (one per unit)
75ºC±5%
Thermal fuse
Non-reset (needs to be replaced), Non-adjustable (one per unit)
110ºC +0 -5%
Fuse capacity 6A 12A 16A
For Water circulation
Low water pressure switch Automatic reset
Open 1 bar
Close 1.5 bar
High water pressure 3 bar
Low water flow switch Automatic reset
Open 12 l/min ±15 % contact opens with decreasing flow
Pump feedback Input ON when relay ON
For water temperature
High temperature protection +5ºC of Maximum water temperature (Heating mode)
Freeze temperature protection -3ºC of minimum water temperature (Cooling mode)
For refrigerant temperature
Freeze temperature protection Tl<-20ºC (for 30 seconds)
For the control circuit
Fuse capacity 5A (Inside PCB)
For the water pump
Fuse capacity 3.15A
5.3.2 Outdoor unit
MODEL
RAS-
2HVRN2
RAS-
3HVRNME-AF
RAS-
4H(V)RNME-AF
RAS-
(5/6)H(V)RNME-AF
RAS-
(8/10)RNME-AF
For
compressor
High pressure switch Automatic reset, non-adjustable
Cut-out
MPa
-0.05
4.15
-0.15
Cut-out 3.20±0.15
For control
Fuse
1~ 230V 50Hz
A
25 40 40 50 -
3N~ 400V 50Hz - - 2x20 2x20 40
CCP timer setting
time
min
Non adjustable
3
For condenser fan motor
Internal thermostat
Automatic reset, non-adjustable (each one for each motor)
DC Cut-out
ºC
- - - - 120±5
AC
Cut-out - - - - 150±5
Cut-in - - - - 96±15
For control circuit
Fuse capacity on PCB
A 3 5
5 (PCB1 and PCB5)
10 (PCB3)