Test Running; Precautions On Refrigerant Leakage - HTW -AV4WD2N8PLUS Manual De Usuario

10 TEST RUNNING

Operate according to "key points for test running" on the electric control box cover.
● Test running can not start until the outdoor unit has been connected to the power for 12 hours.
● Test running can not start until all the valves are affirmed open.
● Never make the forced running .(Or the protector sits back, danger will occur.)

11 PRECAUTIONS ON REFRIGERANT LEAKAGE

When the refrigerant charge in appliance is more than 1.842kg, following requirments should be complied with.
● Requirments for charge limits in unventilated areas:
The maximum refrigerant charge in appliance shall be in accordance with the following:
or the required minium floor area Amin to install an appliance with refrigerant charge m
where
m is the allowable maximumm charge in a room,in kg
max
A is the room area, in m
A is the required minimum room area ,in m
min
m is the refrigerant charge in appliance,in kg
c
LFL is the lower flammable limit in kg/m ,the value is 0.306 for R32 refrigerant
● Install mechanical ventilator to reduce the refrigerant thickness ,under critical level. (ventilate regularly).
Install leak alarm facility related to mechanical ventilator if you can not regularly ventilate.
●
Outdoor Unit
CAUTION
5/4
m = 2.5 x (LFL) x 1.8 x (A)
max
5/4
A =( m / ( 2.5 x (LFL) x 1.8))
min c
2
2
3
Room is filled of leakage refrigerant
(All refrigerant has leaked out.)
4/6 kW
25
1/2
shall be in accordance with following:
c
2
Indoor Unit
Fig.11-1