Piping Length And Elevation - Heat Controller DMH18DB-1 Service Manual

Installation

Piping length and elevation

Multi Piping Type
Max total length of
Capacity(Btu/h)
all pipes (A+B)
18k 30m(100ft)
Indoor Capacity
(Btu/h)
9k
CAUTION: Capacity is based on standard length and maximum allowance length is on the
basis of reliability.
16 Multi type Air Conditioner
Max length of each
pipe (A/B)
15m(50ft)
Gas
9.52mm(3/8") 6.35mm(1/4")
h1
Min length of each
pipe (A/B)
5m(16ft)
Pipe Size
Liquid Standard Length
A
B
h1
B
Max Elevation
between each
between indoor
indoor unit and out-
door unit (h1)
7.5m(25ft)
Additional Refrigerant
7.5m(25ft) 20g/m(0.22oz/ft)
h2
Max elevation
units (h2)
7.5m(25ft)