English
20 SysAqua
11.2.2. WIRING DIAGRAM KEY DESCRIPTIONS
11.2.2.1. POWER SUPPLY DIAGRAMS
11.2.2.2. CONTROL AND REGULATION DIAGRAMS
QG
:
main section switch
KA1
:
three-phase network control relay (phase sequence and cut-out)
FT1/2
: M1/2 compressors magneto-thermal circuit breaker
K1/2
: M1/2 compressors power circuit contactor
M1/2
: compressors 1 and 2
R1/2
: M1/2 compressors crankcase heater
FTC
:
control circuit magneto-thermal circuit breaker
FTOF-L
: outdoor fans magneto-thermal circuit breaker
FTOF-H
: outdoor fans magneto-thermal circuit breaker
KOF
:
outdoor fans power contactors
KOF-L
: outdoor fans power contactors
KOF-H
: outdoor fans power contactors
OF1/2
: outdoor fan motor
S1
:
compressor internal safety device 1
PCB
:
CHILLER regulation
T1
:
CHILLER regulation transformer
FT1/2
: 1 and 2 compressors additional magneto-thermal circuit breaker
FTOF-L
: outdoor fans additional magneto-thermal circuit breaker
FTOF-H
: outdoor fans additional magneto-thermal circuit breaker
FOF1/2
: outdoor fans motors internal protection
FS
:
flow switch
WPS
:
water low pressure switch (option)
KHP
:
high pressure safety relay
HP
:
automatic reset high-pressure pressostats
K1/2
: M1/2 compressors power circuit contactor
RAG
:
antifreeze electric heater
RV1
:
4-way cycle changeover valves (option)
KA1
:
three-phase network control contactor
FPE
:
pressure transducer (low pressure)
FPC
:
pressure transducer (high-pressure)
OCT
:
de-icing temperature probe
OAT
:
outdoor temperature probe (air)
CDT
:
high discharge temperature probe
EWT
:
inlet water temperature probe
LWT
:
outlet water temperature probe
S1
:
compressor internal safety device 1
SM1
:
ON/OFF switch
SD/N
: switch day / night (not supplied)
SS/W
: switch summer / winter (closed in winter) (not supplied)
11.2.2.3. OPTION PUMP
WP1
:
water pump
KWP1
: water pump motor power contact (option)
FTWP
: water pump motor magnetothermal circuit breaker (option)
11.2.2.4. OPTION DUAL PUMPS
WP2
:
water pump
FTWP
: water pump motor magnetothermal circuit breaker
KWP2
: water pump motor power contact
SWP
:
selector of pump 1 or 2
Содержание SysAqua 105
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