DC Inverter U-match Series Duct Type Unit
31
Item
Model
Performance
Testing Standard
Pipe Length(SL) ,
and refrigerant
charge amount
Factory
Pre-charge Pipe
length(PL),
pre-charge
refrigerant charge
amount
Refrigerant
charge
(g/m)adjustment
over or under
factory
pre-charge pipe
length
GUD100W/NhB-S
5m, 2500g
20m, 3020g
±35g/m
GUD125W/NhB-S
5m, 2650g
20m, 3170g
GUD140W/NhB-S
7.5m, 3600g
20m, 4100g
±40g/m
GUD160W/NhB-S
7.5m, 4000g
20m, 4500g
GUD160W/NhB-X
7.5m, 4000g
20m, 4500g
NOTICE:
The Unit is shipped with a pre-charge refrigerant suitable for pipe length
installation as shown in above table.
Extra refrigerant (g/m) determined from the table above, MUST be added for
each meter that the field installed pipe beyond factory pre-charge pipe length.
If the installed pipe length is less than factory pre-charge pipe length (but more
than 3m minimum), then refrigerant at the rate listed above must be reclaimed.
For conducting MEPS performance testing, it’s base on above table standard
pipe length refrigerant charge.
3.2.6 Installation of Drain Pipe
(1) It is not allowed to connect the condensate drain pipe into waste pipe or
other pipelines which are likely to produce corrosive or peculiar smell to
prevent the smell from entering indoors or corrupt the unit.
(2) It is not allowed to connect the condensate drain pipe into rain pipe to
prevent rain water from pouring in and cause property loss or personal
injury.
(3) Condensate drain pipe should be connected into special drain system for
air conditioner.
