Daikin VRV RXYMQ-A Series, Руководство по обслуживанию

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Normal Control SiME332106E
54 Part 4 Functions and Control
5. Normal Control
5.1 List of Functions in Normal Control
Pc : High pressure sensor detection value
Pe : Low pressure sensor detection value
Tc : High pressure equivalent saturation temperature
Te : Low pressure equivalent saturation temperature
Cooling
Part Name
Electric
Symbol
RXYMQ-A Function
Compressor motor M1C

PI control by Te target.
Fan motor M1F

Fan speed 9 steps to keep minimum Tc target 41°C.
Electronic expansion valve
(Main)
Y1E

0 pulse: closed (thermostat OFF)
0-480 pulses: open (thermostat ON)
Electronic expansion valve
(Injection)
Y2E

0-480 pulse at compressor ON
Electronic expansion valve
(Refrigerant jacket)
Y3E

480 pulse
Electronic expansion valve
(Refrigerant auto charge)
Y4E

Minimum pulse
Four way valve Y1S

OFF

: equipped
—: not equipped
Heating
Part Name
Electric
Symbol
RXYMQ-A Function
Compressor motor M1C

PI control by Tc target.
Fan motor
M1F

Fan step 7Y (normal Tc & Te) or Fan step 8 (high
load).
Electronic expansion valve
(Main)
Y1E

0 pulse: closed (thermostat OFF),
0-480 pulses: SH control 5K
Electronic expansion valve
(Injection)
Y2E

0-480 pulses at compressor ON: based on indoor
demand.
Electronic expansion valve
(Refrigerant jacket)
Y3E

0 pulse: closed
0-480 pulse: open (when fin temperature increases)
Electronic expansion valve
(Refrigerant auto charge)
Y4E

Minimum pulse
Four way valve Y1S

ON

: equipped
—: not equipped