Daikin REMQ8PY1 [352/491] Caution be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred

Daikin REMQ12PY1 [352/491] Caution be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred
6L(1%( 7URXEOHVKRRWLQJE\,QGLFDWLRQRQWKH5HPRWH&RQWURO
7URXEOHVKRRWLQJ 
7URXEOHVKRRWLQJ
Check if the
temperature difference between the
suction pipe and the heat exchanger is
20 °C and over.
Check if the
property of suction pipe
thermister (A7T) and heat exchanger
thermister (R4T) are normal.
(*3)
Check if the
low pressure is
0.1MPa or below. (1)
Check if the
property of low
pressure sensor is
normal.(2)
Replace the low pressure
sensor.
Replace the main PC board
(A1P).
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
NONO
YES YES
Remove the factor of
decreasing low pressure by
referring to Check 6 .
Remove the factor of
superheating by referring to
Check 3 .
Replace the thermister.
Replace the main PC board.
• With individual systems,
replace the control PC board
1 (A1P) or the control PC
board 3 (A3P).
• With multi systems, replace
the main PC board (A1P).
NONO
YES
3: Compare the thermister resistance value with the value on the surface
thermometer.
1: Check the low pressure value by using pressure gauge in operation.
2: Compare the actual measurement value by pressure sensor with the
value by the pressure gauge.
(To gain actual measurement value by pressure sensor, measure the
volta
ge at the connector [between (2)-(3)] and then convert the value
into pressure referring to P419.)
In heating mode
In cooling mode
Check 6
Check 3
1
2
1
2
1
Set up a pressure gauge at the service port on the low
pressure side.
2
Reset the operation using the remote controller then restart.
Reset the operation using the remote control then restart.
: Referring to the information on P351.
: Referring to the information on P348.

Содержание

Скачать