![background image](http://html1.mh-extra.com/html/daikin/rxyqq8t7y1b/rxyqq8t7y1b_installation-and-operation-manual_4701852037.webp)
RXYQQ8~20T7Y1B
VRV IV System Air Conditioner
4P345099-1 – 2013.04
Installation and operation manual
33
Be sure to charge the specified amount of refrigerant in liquid state.
Since this refrigerant is a mixed refrigerant, adding it in gas form may
cause the refrigerant composition to change, preventing normal
operation.
Before charging, check whether the refrigerant cylinder is
equipped with a siphon tube or not.
Be sure to use tools exclusively for R410A to ensure required
pressure resistance and to prevent foreign materials from mixing
into the system.
<< Continuation of previous page
<< Continuation of previous page
Heating charging
("
t22
" startup control)
("
t23
" waiting for stable heating)
Cooling charging
("
t02
" startup control)
("
t03
" waiting for stable cooling)
"
t23
" is flashing
• Push BS2 within 5 minutes
• Open valve A
"
t03
" is flashing
• Push BS2 within 5 minutes
• Open valve A
Display show "
t23
" and low
pressure value with an interval of
1 second.
• Add additional refrigerant
amount P (kg)
• Close valve A
• Push BS3 to stop operation
• Ending code "
t26
" will appear
Display show "
t03
" and low
pressure value with an interval of
1 second.
Refrigerant will be charged
automatically.
"
PE
"=charging nearly finished
"
P9
"=charging finished
OR
P (kg) was added during
autocharge
R=Q+P
• Close valve A
• Push BS1 to leave program
• Charging is finished
• Fill in the amount on the
additional refrigerant charge
label
• Go to test run (see
"15.4. Test
operation" on page 43
)
• Push BS2
• T
A
check will be performed
• "
t0X
" will appear
• Push BS1
• Charging is finished
• Fill in the amount on the
additional refrigerant charge
label
• Go to test run (see
"15.4. Test
operation" on page 43
)
Following codes appear: "
E-2
"
(indoor temperature out of range)
and "
E-3
" (outdoor temperature
out of range)
• Push BS1 to leave program
• Charging is finished
• Fill in the amount on the
additional refrigerant charge
label
• Go to test run (see
"15.4. Test
operation" on page 43
)
During grey
conditions
If following codes appear: "
E-2
"
(indoor temperature out of range)
and "
E-3
" (outdoor temperature
out of range)
In this case, perform automatic
charging procedure again.
See figure
"Location of valves" on page 34
; for more information refer to the text in this chapter.
Charge the liquid
refrigerant with the
cylinder in upright
position.
Charge the liquid
refrigerant with the
cylinder in upside-down
position.
NOTICE
Charging with an unsuitable substance may cause
explosions and accidents, so always make sure that the
appropriate refrigerant (R410A) is charged. Refrigerant
containers must be opened slowly.
Содержание RXYQQ8T7Y1B
Страница 65: ......
Страница 66: ......
Страница 67: ......
Страница 68: ...4P345099 1 2013 04 Copyright 2013 Daikin 4P345099 1 0000000S...