Countermeasures In The Event Of Refrigerant Leaks - Hitachi FSXNHE Serie Installations- Und Betriebshandbuch

Additional refrigerant charge
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Countermeasures in the event of refrigerant leaks

The room should have the following characteristics in case of a
leak of refrigerant:
1 Opening without shutter to permit the circulation of fresh air
in the room.
2 Opening without door measuring 0.15%, or greater, of the
floor surface.
3 A fan with a capacity of at least 0.4 m
Japanese refrigerant ( = volume displaced by the compressor
/ 5.7 m /h) or greater, connected to a gas sensor in the air
3
conditioning system which uses the refrigerant.
D A N G E R
Special attention should be given to areas where the refrige-
rant may be deposited and stay in the room, such as base-
ments or similar, as it is heavier than air.
9.5.2 Drainage pipes
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Condensation drainage system
When the outdoor unit operates in refrigeration or heating mode,
there is a build-up of condensation of the ambient humidity which,
together with rain water, requires draining.
Select a location for the unit which permits adequate drainage.
If necessary, mount an installation suitable for the drainage of
condensation.
D A N G E R
• Drainage must not take place in areas frequented by pe-
destrians. In low temperatures, the drainage water could
freeze and lead to falls. If it is necessary to install the
outdoor unit in an area frequented by pedestrians, an
additional drainage tray should be fitted.
• Do not fit drainage pipes or collection trays in cold clima-
tes, as they could freeze and break.
If a condensation drainage kit is required for the outdoor unit, use
the optional drainage kit DBS-TP10A.
57
PMML0294A_rev.2_02-2014.indb 57
/minute per tonne of
3
PMML0294A rev.2 - 07/2014
N O T E
All measurements are in mm.
Base of outdoor unit
SET FREE RAS-(8-12)FSXN1E
and RAS-(5/6)FSXNH(E)
A
ø26x2
B
ø26x2
C
ø52
E
D
ø26x2
235x113
Drainage hole. Drain boss position (option).
A
For the optional drainage kit DBS-TP10A
Drainage hole. Drain cap position (option).
B
For optional drainage plug
C
Opening for power wiring feed through
D Opening for communication wiring feed through
E Opening for feed through of refrigerant pipes
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Installation position of the optional drainage kit
DBS-TP10A
Installation position (example: RAS-10FSXNH(E), lower and side
views).
A Drain pipe
B Optional drain plug
Drain kit components
Material/
Model Description
colour
Drain pipe PP/black
DBS-
Drain plug PP/black
TP10A
Rubber plug CR/black
SET FREE RAS-(14-16)FSXN1E
and RAS-(8-12)FSXNH(E)
A
ø26x2
B
ø26x2
C
ø52
E
D
ø26x2
245x138
C Drain pipes (field-supplied)
D Base of unit
Qty Application
2 Drain pipe connection
2 Drain pipe plug
4 Pipe and plug seal
14/07/2014 12:28:33