Daikin RXYMQ36MVJU Instruction Manual download pdf (Page 30)

Checks after Completion of Work EDUS39-606A-N

29 Installation of Outdoor Units

Compliance to the local applicable regulations and standards

for the maximum allowable concentration level is required.

Direction of the refrigerant flow

Room where

refrigerant leak

has occurred

(outflow of all the

refrigerant from

the system)

Pay special attention to places like basements where

refrigerant, which is heavier than air, can stay.

Procedure for checking maximum concentration

Check the maximum concentration level in accordance with

steps 1 to 4 below and take whatever action is necessary to

comply.

1. Calculate the amount of refrigerant (lb.) charged to each

system separately.

amount of refrig-

erant in the unit

(amount of

refrigerant with

which the sys-

tem is charged

before leaving

the factory)

additional charg-

ing amount

(amount of refrig-

erant added locally

in accordance with

the length or diam-

eter of the refriger-

ant piping)

total

amount of

refrigerant

(lb.) in the

system

NOTE

• Where a single refrigerant facility is divided into 2 entirely

independent refrigerant systems, use the amount of refrig-

erant with which each separate system is charged.

2. Calculate the smallest room volume (ft

)

In case like the following, calculate the volume of (A), (B) as

a single room or as the smallest room.

A. Where there are no smaller room divisions

B. Where there is a room division but there is an open-

ing between the rooms sufficiently large to permit a

free flow of air back and forth.

Opening between rooms

Partition

Where there is an opening without a door or where there

are openings above and below the door which are each

equivalent in size to 0.15% or more of the floor area.

3. Calculate the refrigerant concentration by using the results

of the calculations in steps 1 and 2 above.

total amount of refrigerant in the

refrigerant system

≤

maximum

concentration level

(lb./ft

)

volume (ft ) of smallest room in

which there is an indoor unit

installed

If the result of the above calculation exceeds the maximum

concentration level then make similar calculations for the

second then third smallest room, and so forth, until the

result falls short of the maximum concentration.

4. If installation of a facility results in a concentration in

excess of the maximum concentration level, it is necessary

to revise the system. Please consult your dealer.

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Daikin RXYMQ36MVJU Instruction Manual Page 30

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