Fujitsu AUXB04GALH Service Manual page 47

High pressure protection -Summary-
Protection controlling range in cooling operaing mode
R
R
3.20 3.50 3.70
Note: In cooling mode, there are 5 kind of high pressure protections are existing.
Target pressure controlling will be cancelled when the operating pressure is in the range of orange.
Protection controlling range in heating operaing mode
R
3.20
R R
3.50
R
R
R S
S
R
3.49 3.54 3.60 3.64
Note: In heating mode, there are 6 kind of high pressure protections are existing.
Target pressure controlling will be cancelled when the operating pressure is in the range of orange.
R
S
R
R R S
S
3.78 3.90
S
S
3.70 3.80
S
S
S
3.94 4.00 4.20 ( MPa )
S
S S
4.00 4.20 ( MPa )
02-19
HPP Stop2 : Error Indication E A 42
HPP Stop1: Error Indication E A 41
HP Protection 1: SV2 ON
Abnromal HP protection ( Pattern 2) :
Compressor rotation speed lessen
18.5 rps (-15.0 rps) / 30sec.
( ): AJ* 108/ 126/ 144/ 162L
Abnromal HP protection ( Pattern 1) :
Compressor rotation speed rise up
prohibit
HPP Stop2 : Error Indication E A 42
HPP Stop1: Error Indication E A 41
HPP2 – Pattern2 : SV1 & SV2 ON
HPP2 -Pattern1 : SV2 ON
Abnromal HP protection ( Pattern 2) :
Compressor rotation speed lessen
-18.5 rps (-15.0 rps) / 30sec. -
( ): AJ* 108/ 126/ 144/ 162L
Abnromal HP protection ( Pattern 1) :
Compressor rotation speed rise up
prohibit