Midea MDV-V80W/DN1 Technical Manual

R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10
62 Installation
4. Piping installation
4.1 Piping connection
Various piping and wiring patterns can be selected, such as out from the front, the back, the side, and
undersurface, etc.（The follow display the locations of several piping and wiring knock-off interfaces）
Cautions:
Side out pipe: please remove the L-shape metal plate, otherwise cannot wiring.
Back out pipe: Please wipe off the piping support rubber blanket beside the inner outlet pipe cover of the
machine while back side getting out pipes.
Undersurface outlet pipe: the knock out should from inside to outside, and then piping and wiring through this.
Pay attention to the piping the fat connecting pipe should out from the largest hole, otherwise the pipes will be
rubbed. Please do the moth proofing for the knocked out hole, to avoid the pest processing into and destroy
the components.
4.2 Allowable length and level difference of refrigerant pipe
Permitted value
Piping
Pipe Length
Total Pipe Length(Actual)
≤100m
L1+L2+L3+L4+L5+a+b+c+d+e+f
Maximum
Piping(L)
Actual Length
≤45m(80/105 model)
L1+L2+L3+L4+L5+f(The first
connecting method) or
L1+L3+L5+f(The second connecting
method)
≤60m(120~160 model)
Equivalent Length
≤50m(80/105 model)
≤70m(120~160 model)
Pipe Length (from the first branch to the
furthest IDU)
≤20m
L2+L3+L4+L5+f(The first connecting
method) or L3+L5+f(The second
connecting method)
Pipe Length(IDU to the nearest branch)
≤15m
a,b,c,d,e,f
Level
difference
Level difference
between IDU~ODU
Outdoor Unit up
≤30m
----
Indoor Unit Down
≤20m
----
Level difference between IDU~IDU
≤8m
----
Note: When the total equivalent piping length of liquid + gas side is ≥90m, it must increase the size of air side main pipe. Besides,
according to the distance of refrigerant pipe and the over matched state of indoor unit, when the capacity is decreasing it still can
increase the gas side main pipe size.
Front out pipe
Back out pipe
Side out pipe
Undersurface out pipe
Fat pipe

Midea MDV-V80W/DN1 Specifications

General

Brand	Midea
Model	MDV-V80W/DN1
Category	Air Conditioner
Language	English