Daikin RXYQ96PYDN, Руководство по обслуживанию

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SiUS34-801A_b Protection Control
VRVIII R-410A Heat Pump 60Hz 67
8.3 Discharge Pipe Protection Control
This discharge pipe protection control is used to protect the compressor internal temperature
against a malfunction or transient increase of discharge pipe temperature.
[Contents]
The following control is performed for each compressor.
[INV compressor]
*1: HTdi represents a value obtained by correcting the discharge pipe temperature (Tdi) of INV
compressor with an outdoor temperature.
*2: For INV compressor steps, refer to information on page 45.
[STD compressor]
&
&
OR
• HTdi< 230°F
• A lapse of 20 sec.
• HTdi>239°F
• A lapse of 30 sec.
Matching of fre qu ency
• HTdi>266°F
• HTdi>24
8 °F contin u es
for a period of 90 sec.
OR
• HTdi>275°F
• HTdi>24
8 °F
contin u es for a period
Stop d u e to malf u nction
[ F3 ] is displayed.)
Discharge pipe
temperat
u re stand b y
occ u rs 3 times for a
period of 100 min.
I NV compressor (See *2):
1-step u p per 20 sec.
Restart stand b y: 10 min.
( u p to 2 times for a
period of 100 min.)
Compressor system (See *2):
Step 1
I NV compressor (See *2):
1-step per 30 sec.
OR
After a lapse of 10 min.
Normal operation
STD compressor stops
running.
HTds: Represents a value obtained by correcting
the discharge pipe temperature (Tds) of STD
compressor with an outdoor temperature.
• HTds>248˚F continues for a period
of consecutive 5 min. or more.
• HTds>275˚F