Installing The Water Stopper; Thermal Insulation Of Refrigerant Piping; Installing The Sealing Material For Base Leg - Mitsubishi Electric City Multi PQHY-P72ZLMU Manuel D'installation

charged in the liquid state. Consequently, when charging the unit with
[Fig. 10.3.3] (P.12)
A Siphon pipe B
10.4. Thermal insulation of refrigerant
piping
etc. Pay special attention to insulation in the ceiling plenum.
[Fig. 10.4.1] (P.12)
A Steel wire
C Asphaltic oily mastic or asphalt
E Outer covering B
Heat
insulation
material A
Indoor Vinyl tape
Outer
covering B
Heat source
Note:
When using polyethylene as the insulation, asphalt shall not be
required.
Do not insulate the electric wires.
[Fig. 10.4.2] (P.12)
A B
D Finishing tape E Insulation
[Fig. 10.4.3] (P.12)
Penetrations
[Fig. 10.4.4] (P.12)
<A>
<C>
<E>
<F>
A
Sleeve
C
Lagging
E
Band
G
Sleeve with edge
I
Mortar or other incombustible caulking
J
Heat source unit
BC controller
Heat source unit
Temperature Resistance
chart above.
30
B Piping
D Insulation material A
C Electric wire
<B> Outside wall
<D>
B
Insulation
D
Caulking material
F
H
Lagging material
more
more
more
more
more
more

10.5. Installing the water stopper

Make sure to install the supplied water stopper and sealing material when
providing insulation.
[Fig. 10.5] (P.13)
A
cover. Then, wind the sealing material to the pipe, using the mark on the
paper to properly align it.
B
material described in step A.
C
D Mark
E
F Inside the unit
G Pipe cover
H
I
J
K Water stopper
L
10.6. Installing the sealing material for base
leg
[Fig. 10.6] (P.13)
A Enlarged view
B Sealing material attachment process
C
D
E
F Panel assy W
G
H
I
J
K
L Put sealing material inward.
M