3-54
3.9.2 Automatic PTI (Pre-Trip Inspection)
●
The automatic PTI function is provided so as to ensure correct inspection and to shorten inspection
time. (Refer to section 3.2 for operation of controller)
(1) Appearance inspection of unit
q
Physical damage
w
Casing insulation through hole area
e
Drain hose (dust and clogging)
r
Power cable and plug damage
t
Condition of refrigerant piping fasteners.
y
Condition of each sensor installation
u
Loose mounting sections
Bolts and nuts ----- Casing frame, compressor, fan motor control box and temperature recorder box
Cable glands ----- Control box
i
Conditions of control box cover packing (water-proof) and temperature recorder box cover packing
(water-proof)
o
Magnetic contactor contact point for burning out.
(2) Inspection before unit operation
q
Gas leakage inspection
w
Power voltage inspection
(Automatic PTI range)
(3) Operation inspection of safety device and control equipment
q
Safety device
HPS
----- Measurement of the actuating pressure by stopping the condenser
fan motor.
w
Control equipment Solenoid valve
----- Inspection of operation (open and close) and leakage
EFM
----- Speed switchover and rotating direction
EV, SMV
----- Inspection of operation (open and close) and leakage
(4) Operation in each mode
q
Pull-down
/
0˚C
Pull-down time, voltage and current
w
Chilled control
0˚C
Electronic temperature Return, supply air temperature differential, voltage and current
recorder calibration
e
Defrosting
Defrosting time
r
Pull-down
/
–18˚C
Pull-down time, evaporator fan motor speed switchover
t
Frozen control
–18˚C Electronic temperature (Temperature differential and rotating direction)
recorder calibration ON/OFF, voltage and current
Remained frost inspection
(5) PTI report preparation
03̲LXE10E-A(48-60) 07.2.23 2:28 PM ページ 3-54
https://daikin-p.ru
Содержание LXE10E-A
Страница 142: ...5 7 An example of installation of CA devices inside q TransFRESH ASS Y A4 A5 CABLES W MOUNTING BOX q https daikin p ru...
Страница 177: ...7 8 https daikin p ru...
Страница 178: ...7 13 Schematic wiring diagram Connector type terminal board and rechargeable battery 7 9 https daikin p ru...
Страница 180: ...7 11 7 15 Schematic wiring diagram Connector type terminal board temperature recorder and dry battery https daikin p ru...
Страница 220: ...8 37 2 2 Inside 1 q Reheat coil https daikin p ru...
Страница 232: ...8 49 An example of installation of CA devices inside q TransFRESH ASS Y A4 A5 CABLES W MOUNTING BOX q https daikin p ru...
Страница 237: ...MEMO https daikin p ru...