Daikin VRV Inverter K Series Manual page 259

SI-05C.BOOK Page 245 Monday, November 6, 2000 4:13 PM
SiE-05C
When Cooling (In Case of Cooling Only System)
Control IN conditions &
Step 1
: Operates No. 1 compressors only of STD outdoor unit 1 and 2.
Comp-
ressor
INV outdoor
0 Hz + OFF
unit
STD outdoor
ON + OFF
unit 1
STD outdoor
ON + OFF
unit 2
Step 2
: Operates all compressors of STD outdoor unit 1 and 2.
Comp-
ressor
INV outdoor
0 Hz + OFF
unit
STD outdoor
ON + ON
unit 1
STD outdoor
ON + ON
unit 2
Oil return
: Operates by executing oil return for standard types 1 and 2.
Comp-
ressor
INV outdoor
0 Hz + OFF
unit
STD outdoor
ON + OFF
unit 1
STD outdoor
ON + OFF
unit 2
HPS operation for either STD outdoor unit 1 or 2 → Fixed to L tap ON by thermostat unit only.
Functions PLUS Series
Emergency operation setting
Outdoor temperature detected to be above 20˚C
for STD outdoor unit 1
Outdoor
Function unit's solenoid valve
unit fan
H + ON Y5-ON
H + ON Y6-OFF
H + ON Y7-OFF
5 minutes elapse
Liquid pipe temp.
of STD outdoor unit 2 below 58˚C
Outdoor
Function unit's solenoid valve
unit fan
H + ON Y5-ON
H + ON Y6-OFF
H + ON Y7-OFF
Compressors operate total of 70 min.
following previous oil return.
Outdoor
Function unit's solenoid valve
unit fan
H + ON Y5-ON
H + ON Y6-OFF
H + ON Y7-OFF
Either malfunction, retry or outdoor temp.< 15˚C
Quit
Indoor Unit Fan Control
Indoor units execute superheating
control in this mode.
Liquid pipe temp. STD outdoor unit 1 > 60˚C
3 minutes elapse
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Outline of Control
(VF124)
245