Toshiba MMY-MAP0501T8 Installations-Handbuch Seite 22

5
REFRIGERANT PIPING
Full opening of valve
• Open valve of the outdoor unit fully.
• Using 4mm-hexagonal wrench, open fully the valve rods at liquid and balance sides.
• Using a spanner, etc, open fully the valve rod of packed valve (MMY-MAP0801
side.
• Using the pinchers, open fully the handle of the ball valve (MMY-MAP0501
Be careful that handling of ball valve differs from that of packed valve.
How to open the ball valve at gas side
Charge port
Heat insulation for pipe
• Apply heat insulation of pipe separately at liquid, gas, and balance sides.
• Be sure to use thermal insulator with heat-resisting temp. 120°C or more.
• After piping connection work has finished, cover the opening of the piping/wiring panel with the piping cover, or
fill silicon or putty in space of the pipes.
• In case of drawing-out the pipes downward or sideward direction, also close the openings of the base plate
and the side plate.
• Under the opened condition, a trouble may be caused due to entering of water or dust.
In case of using pipe cover
Piping/wiring panel
Drawing-out
frontward
Downloaded from www.Manualslib.com
Valve unit
Handle
Pull out the handle and
using cutting pliers, etc.
turn it counterclockwise
by 90˚. (Open fully)
Charge port
Flare nut
Drawing-out sideward
Close the opening
with pipe cover.
Drawing-out downward
manuals search engine
∗
∗
, MAP0601
Valve unit
Push in handle.
Closed completely
Flare nut
CAUTION
In case of using no pipe cover
Piping/wiring panel
Drawing-out
frontward
Drawing-out downward
19
∗ ∗
, MAP1001 , MAP1201 ) at gas
∗
) at gas side.
Handle position
Handle
Opened fully
Drawing-out sideward
Fill silicon or putty in
periphery of the pipes.